TW201919766A - Air current discharge unit and fluid device - Google Patents

Abstract

This air current discharge unit in a fluid device is provided with: an inlet into which an air current flows; an outlet out of which the air current flows; a first flow path that links the inlet and the outlet; and a second flow path that is provided on the outside of the first flow path, that has openings in two locations, and that communicates with the first flow path through the openings. The second flow path is defined by wall parts that include a plurality of ribs, and the outlet side of the second flow path is sealed by an outer peripheral part that defines the outlet. The second flow path may also be defined by wall parts that include a plurality of bent sections for changing the direction of the fluid flowing through the second flow path.

Description

Air discharge unit and fluid equipment

One embodiment of the present invention relates to a gas discharge unit and a fluid device.

In recent years, a machine system using a fluid element has been known. The so-called fluid element is a general term for a control element that uses a fluid (liquid or gas) as an actuator. In particular, a fluid element called a pure fluid element does not include a movable part, and controls fluid only by the movement of the fluid.

As a technology of a pure fluid element mounted in an air shower device, a technology described in Japanese Patent Application Laid-Open No. 2004-275985 is known.

The pure fluid element described in this document includes a fluid inflow port, a connection duct spanned by a fluid flowing in from the fluid inflow port, and a fluid ejection nozzle from which fluid flowing across the connection duct flows out. The pure fluid element drives the fluid in the connecting duct by the pressure difference caused by the fluid flowing from the ejection nozzle. The flow velocity of the fluid flowing from the ejection nozzle is changed in accordance with the flow of the fluid in the connection duct generated by the driving. The connection duct is provided with two flow paths having a curved cross-section and bilateral symmetry. The two flow paths converge at a confluence point of the fluid flowing between the connecting duct and the fluid flowing between the fluid inlet and the fluid ejection nozzle.

[Technical problem to be solved by the invention]

However, the technology described in Japanese Patent Application Laid-Open No. 2004-275985 has a problem that it is difficult for a user to obtain the effect of "swing" of the air flow and the actual feeling.

For example, in the case of a hand-held hair dryer, the user manually shakes the hair dryer up and down or left and right, whereby the wind from the hair dryer shakes up and down or left and right. To achieve the same effect by the self-excited vibration of the airflow, the airflow system must be slowly shaken up and down or left and right. However, the pure fluid element described in Japanese Patent Application Laid-Open No. 2004-275985 is difficult to realize. That is, the pure fluid element described in this document is intended to be used for dust removal purposes. Therefore, the pure fluid element generates a large and strong air flow. This airflow will become a percussive airflow, so it is difficult for the user to obtain the "shake" effect and actual feeling of the airflow.

In view of such a problem, one object of one embodiment of the present invention is to improve the "shake" effect of air flow from a fluid device. [Technical solution to solve the problem]

An airflow discharge unit according to an embodiment of the present invention includes: an inlet through which the airflow flows; an outlet through which the airflow flows; a first flow path connecting the inlet and the outlet; and an opening having two parts And a second flow path that communicates with the first flow path through the opening, the second flow path is provided outside the first flow path; the second flow path is provided with a wall including a plurality of ribs An outer peripheral portion defining the outflow port closes the outflow port side of the second flow path.

The second flow path of the airflow discharge unit according to an embodiment of the present invention may be configured to have a plurality of corners.

The ribs of the air discharge unit according to an embodiment of the present invention may be alternately formed on the first wall portion defining the second flow path and the second wall portion facing the first wall portion.

The second flow path of the air flow discharge unit according to an embodiment of the present invention may be provided with two left and right symmetrically when viewed in cross section.

In the airflow discharge unit of one embodiment of the present invention, the outer peripheral portion defining the outflow port is formed with a pair of recessed portions recessed toward the inflow port side, and the pair of recessed portions are formed by aligning the central portion in the up-down direction in the left-right direction. Yes.

The ribs of the airflow discharge unit according to an embodiment of the present invention may be formed to have a convex shape larger than one-half of the width of the second flow path.

The wall portion between the adjacent ribs of the airflow discharge unit according to an embodiment of the present invention may include a wall portion formed in a straight line. In addition, the wall portion between the adjacent ribs of the airflow discharge unit according to an embodiment of the present invention may include a wall portion formed by a curve.

An air flow discharge unit according to another embodiment of the present invention includes: an inlet through which the air flows; an outlet through which the air flows; a first flow path connecting the inlet and the outlet; and an opening having two parts And a second flow path communicating with the first flow path through the opening, the second flow path being provided outside the first flow path; the second flow path passing through the second flow by including a change The direction of the air flow in the passage may be defined by the wall portions of the plurality of bent portions, and the outer outlet side of the second flow passage may be closed by an outer peripheral portion defining the outflow opening.

The second flow path of the air flow discharge unit according to another embodiment of the present invention may be configured to have a plurality of corners.

The air discharge unit according to one embodiment of the present invention may be installed in a hair dryer.

In addition, a fluid device according to an embodiment of the present invention includes: an airflow discharge unit according to an embodiment of the present invention; and a main body that discharges fluid to the inflow port of the airflow discharge unit. An airflow discharge unit according to another embodiment of the present invention includes: an inlet through which the airflow flows; an outlet through which the airflow flows; a first flow path connecting the inlet and the outlet; and a two-port An opening, and a second flow path that communicates with the first flow path through the opening, the second flow path being provided outside the first flow path; and the second flow path system includes a plurality of ribs Defined by the wall portion, the distance L1, which is the distance between the second flow path, that is, the distance between the openings of the two parts, is compared with the peripheral wall forming the first flow path by connecting the openings of the two parts. The length L2 of the parallel imaginary line is longer.

Hereinafter, embodiments of the present invention will be described with reference to drawings and the like. However, the present invention can be implemented in many different forms. The present invention is not limited to the description of the embodiments exemplified below. In the drawings, in order to make the description clearer, the width, thickness, and shape of each element may be shown more schematically than the actual form. However, the contents of the drawings are only examples, and do not limit the explanation of the present invention. In this specification and the drawings, the same elements as those described with reference to the drawings that have appeared are given the same reference numerals, and detailed descriptions are appropriately omitted. Furthermore, the words "first" or "second" attached to each component are used to distinguish the expediency of each component, and unless otherwise specified, it does not have further meaning.

In this specification, in the case where a certain component or area is located above or below the other component or area, if it is not particularly limited, the description form includes above the other component or area. (Or below), not just the situation above (or directly below) other components or areas. That is, the description form also includes a case where a different component is included between a certain component or region and other components or regions.

(First Embodiment) <Configuration of Fluid Device> (1) FIG. 1 is a perspective view showing a state in which an air discharge unit of a fluid device according to an embodiment of the present invention is installed in a body. FIG. 2 is a plan view showing a state in which the airflow discharge unit of the fluid equipment according to an embodiment of the present invention is installed in the main body. FIG. 3 is a side view showing a state in which the airflow discharge unit of the fluid equipment according to an embodiment of the present invention is installed in the main body.

A fluid device 100 according to an embodiment of the present invention includes a main body 110 and an air discharge unit 120.

The main body 110, in this example, is a hand-held hair dryer. As another example, the body 110 may be a fixed type hair dryer. In addition, the main body 110 may be a fluid device (for example, a dryer, an electric fan, a pet hair dryer, and a smoke generator) other than a device that sends wind to the head. The main body 110 may be a device for the airflow from the airflow discharge unit 120.

As shown in FIGS. 1 to 3, the airflow discharge unit 120 is mounted on the main body 110 by fitting the protruding portion 126 to the air outlet 112 of the main body 110. The airflow discharge unit 120 has a mechanism for changing the direction of the airflow sent from the main body 110. The details of the structure of the airflow discharge unit 120 will be described later.

Fig. 4 is a perspective view showing a state in which the airflow discharge unit of the fluid equipment according to an embodiment of the present invention is installed in the main body. Fig. 5 is a plan view showing a state in which the airflow discharge unit of the fluid equipment according to an embodiment of the present invention is installed in the main body. Fig. 6 is a side view showing a state in which the airflow discharge unit of the fluid equipment according to an embodiment of the present invention is installed in the main body. FIG. 7 is a front view showing a state in which the airflow discharge unit of the fluid equipment according to an embodiment of the present invention is installed in the main body.

As shown in FIGS. 4 to 6, the airflow discharge unit 120 is used by being mounted on the front end of the air blowing outlet 112 of the main body 110. In this example, the airflow discharge unit 120 is used by being directly mounted on the air blowing outlet 112 of the main body 110. However, the present invention is not limited to this. The air discharge unit 120 may be mounted on the main body 110 in a state where other components are interposed between the air discharge unit 120 and the main body 110. In addition, the installation angle (relative angle around the center of the wind outlet 112) of the air discharge unit 120 to the main body 110 is not limited to the angle described in this embodiment, and is an offset of ± 90 from the installation angle described in this embodiment. ° mounting angle is also available.

As shown in FIG. 5, the airflow discharge unit 120 is formed to have a slightly tapered shape that faces the air blowing direction. However, the airflow discharge unit 120 may be formed in a slightly tapered shape opposite to the air blowing direction, or may be formed in a cylindrical shape.

As shown in FIG. 6, the width W1 in the longitudinal direction of the air discharge unit 120 is larger than the width W2 in the longitudinal direction of the air outlet 112 of the main body 110, and the longitudinal direction of the outlet 124 of the air discharge unit 120 is formed. The width is larger than the width W2 in the longitudinal direction of the air outlet 112 of the main body 110.

As shown in FIG. 7, the inside of the airflow discharge unit 120 is hollow, and is used to send airflow from the main body 110 to the external flow path from the outlet 124.

<Configuration of Air Flow Discharge Unit of Fluid Equipment> [Configuration of Outflow Port] FIG. 8 is a perspective view showing a configuration of an outlet side of the air flow discharge unit of a fluid equipment according to an embodiment of the present invention. FIG. 9 is a cross-sectional view of an air flow discharge unit of a fluid equipment according to an embodiment of the present invention, as viewed from an outflow port side.

As shown in FIG. 8, the outer peripheral portion 123 defining the outflow port 124 is a recessed portion 127 having two portions. By providing the recesses 127 at two locations, it is possible to more smoothly switch the upper and lower wind directions described later.

That is, as will be described later, the airflow discharge unit 120 of the fluid equipment according to an embodiment of the present invention continuously swings the airflow X along the upper portion 140 and the airflow Y along the lower portion 142. At this time, the airflow advances along the wall by the Coanda effect. Therefore, when there are no recesses 127 on the left and right, and there are walls on the left and right, a part of the “airflow X or airflow Y” advances along the left and right walls instead of the recesses 127. therefore. Airflow X or Y will be dispersed.

Therefore, an outer peripheral portion 123 is formed at the outflow port 124 of the airflow discharge unit 120 of the fluid equipment according to an embodiment of the present invention. The outer peripheral portion 123 is provided with a pair of trapezoidal concave portions 127 in the central portion in the vertical direction. A pair of trapezoidal recesses 127 are arranged in a direction perpendicular to the direction in which the airflow is to be shaken (up and down in this example) (left and right in this example), and are recessed toward the inlet 122 side. Thereby, it is possible to suppress the airflow from being dispersed in a direction different from the direction in which the airflow is to be shaken, and to obtain a stronger shaking effect of the airflow. In addition, it is not necessary to form the concave portion 127 as a trapezoid. The concave portion 127 may be configured as a triangle or a U-shape. In addition, when the airflow is to be shaken from side to side, the mounting angle of the airflow ejection unit 120 to the main body 110 may be adjusted so that the pair of recessed portions 127 are aligned in the up-down direction at the center of the outer peripheral portion 123 in the left-right direction.

As shown in FIG. 9, the outflow port 124 is formed in an oval shape. The area A2 of the outflow port 124 when viewed in a cross section is larger than the area A1 of the inflow port 122. The inner wall of the air discharge unit 120 near the outflow port 124 is formed in a reverse cone shape toward the outflow port 124. The air flow advances along the wall by the Coanda effect. Therefore, by making the airflow discharge unit 120 into such a shape, the wind | wave which shakes widely can be obtained.

[Configuration of Outflow Port] FIG. 10 is an exploded perspective view showing an inflow port of an air flow discharge unit of a fluid device according to an embodiment of the present invention.

As shown in FIG. 10, the protruding portion 126 of the airflow discharge unit 120 is an inflow port 122 through which airflow from the main body 110 flows. In this example, the protruding portion 126 is combined with a member on the side of the outlet 124 by screwing. The protruding portion 126 of the air discharge unit 120 is fitted into the air blowing outlet 112 of the main body 110, whereby the air discharge unit 120 is mounted on the main body 110.

[Configuration of Internal Flow Path] FIG. 11 is a cross-sectional perspective view showing a configuration of an inlet side of an airflow discharge unit of a fluid device according to an embodiment of the present invention. FIG. 12 is a cross-sectional view of the inflow side of the airflow discharge unit of the fluid equipment according to an embodiment of the present invention.

The air discharge unit 120 of the fluid equipment 100 according to an embodiment of the present invention includes two flow paths 200 along the outer periphery of the inflow port 122. The flow path 200 is defined by wall portions 201 and 202 including a plurality of ribs 210, and has two opening portions. As shown in FIG. 12, in this example, the airflow discharge unit 120 is provided with two flow paths 200 so as to be approximately bilaterally symmetrical when viewed in cross section.

The wall portion 230 formed between the adjacent ribs 210 may be formed in a straight line or a curved line when viewed in a cross section shown in FIG. 12. Whether the wall portion 230 formed between the adjacent ribs 210 is formed by a straight line or a curved line, the flow path 200 is configured to have a plurality of corners by the existence of the ribs 210. As a result, the flow path 200 generates a fine and curved airflow.

The rib 210, in this example, interacts with the wall portion 201 on the right side (inside) and the wall portion 202 on the left side (outside) of the flow channel 200 when viewed in a cross section on the inlet side as shown in FIG. There are 7 formed. The number and arrangement of the ribs 210 are not limited to this, and may be determined in accordance with the sizes of the air discharge unit 120 and the flow path 200. Specifically, the number of the ribs 210 may be determined so that the flow path length of the flow path 200 is made as long as possible while taking into consideration that the resistance of the fluid in the flow path 200 is not excessively large. In addition, the ribs 210 may be arranged without mutual interaction.

The rib 210 is formed to have a convex shape larger than one-half of the width W of the flow path when viewed in a cross section of the inlet. By forming the ribs 210 in such a size, the flow of the fluid passing through the flow path 200 along the curve of the outer periphery of the air discharge unit 120 can be suppressed, so that the flow path length L1 can be made more sure.

The flow path 200 may be formed integrally with the airflow discharge unit 120, or may be manufactured separately from the airflow discharge unit 120, and may be installed in the airflow discharge unit 120.

<Role of the fluid device 100 in which the air discharge unit 120 is installed> (1) The air flowing into the air discharge unit 120 from the inflow port 122 advances along either the upper part 140 or the lower part 142 of the outflow port 124 by the Coanda effect. The Coanda effect refers to a phenomenon in which a curved wall is provided beside a jet of gas or liquid, and the jet flows in a direction along a curved surface of the wall.

For example, when the airflow advances along the upper portion 140, the pressures near the openings P2 and P4 are lower than the pressures near the openings P1 and P3. Since the gas system flows from the high pressure side to the low side, the air flow in the left flow path 200 generates a flow from the opening portion P1 toward the opening portion P2. In addition, an air flow is generated in the flow path 200 on the right side from the opening portion P3 toward the opening portion P4.

If this continues, the pressures near the openings P2 and P4 and the pressures near the openings P1 and P3 will be reversed, and the pressures near the openings P2 and P4 will be lower than those of the openings P1 and P4. The pressure near P3 is high. Therefore, the airflow traveling along the upper portion 140 will proceed along the lower portion 142.

When the airflow advances along the lower portion 142, the pressures near the openings P1 and P3 are lower than the pressures near the openings P2 and P4. Since the gas system flows from the high pressure side to the low side, an air flow is generated in the flow path 200 on the left side from the opening portion P2 toward the opening portion P1. In addition, in the flow path 200 on the right side, an air flow is generated from the opening portion P4 toward the opening portion P3.

If this continues, the pressures near the openings P2 and P4 will be reversed from the pressures near the openings P1 and P3, and the pressures near the openings P1 and P3 will be lower than those at the openings P2 and P3 The pressure near P4 is high. Therefore, the airflow traveling along the lower portion 142 will again advance along the upper portion 140.

By repeating this action, the airflow X along the upper portion 140 and the airflow Y along the lower portion 142 will continue to alternately switch at approximately constant cycles. Therefore, the airflow passing through the air outlet unit 120 will slowly shake in the direction of the upper portion 140 and the direction of the lower portion 142.

The flow path 200 of the airflow discharge unit 120 of the fluid device 100 according to an embodiment of the present invention has a plurality of ribs 210 in the wall portion 230 defining the flow path 200, and thus is thin and bent. Therefore, even if it is a miniaturized air discharge unit, the flow path length can be made long. If the flow path length of the flow path 200 is long, the switching of the air flow direction caused by the aforementioned pressure switching will be performed slowly. Therefore, the air flow across the air discharge unit 120 will slowly shake in the direction of the upper portion 140 and the direction of the lower portion 142. Thereby, the effect of shaking can be improved.

However, if a conventional technique is adopted in which the direction of the air flow is clearly and instantaneously switched, a flow path is formed by a curve. As a result, the airflow is strengthened and the switching of the airflow becomes faster. Therefore, the user can only feel the expansion of the wind in terms of physical sense.

However, the air discharge unit 120 of the fluid equipment 100 according to an embodiment of the present invention has a flow path 200 having the aforementioned structure. Therefore, when the airflow discharge unit 120, the airflow slowly shakes. Therefore, compared with the case where the aforementioned conventional technique is adopted, by making the airflow slowly shake, the user becomes more likely to feel the "shake" of the wind on the body sense.

In this way, if the airflow discharge unit 120 of the fluid device 100 according to an embodiment of the present invention is used, the airflow across the airflow discharge unit 120 will slowly shake toward the upper 140 direction and the lower 142 direction. Therefore, it is possible to obtain wind in which the intensity of the air flow spreads evenly, and thus it is possible to obtain a "shake" effect of the wind from the fluid device.

(Second Embodiment) Fig. 13 is a cross-sectional perspective view showing a configuration of an inlet side of an airflow discharge unit of a fluid device according to a second embodiment of the present invention. Fig. 14 is a cross-sectional view of the inflow side of an airflow discharge unit of a fluid equipment according to a second embodiment of the present invention.

The air discharge unit 520 of the fluid equipment 500 according to the second embodiment of the present invention is different from the air discharge unit 120 of the fluid equipment 100 in the shape of the flow path, especially the shape and arrangement of the wall portion.

The air discharge unit 520 of the fluid equipment according to the second embodiment of the present invention includes a flow path 600. The flow path 600 is defined by the outer wall 605 and the wall portion 630 of the air discharge unit 520. The flow path 600 may be defined only by the wall portion 630. As shown in FIG. 12, in this example, the airflow discharge unit 520 is provided with two flow paths 200 so as to be approximately bilaterally symmetrical when viewed in cross section.

The flow path 600, in this example, is formed in a shape having a secondary bend. Specifically, the flow path 600 is first formed along the outer periphery of the airflow discharge unit 520 from the opening portion P1 and the opening portion P5. The flow path 600 is bent by the bent portion P2 and the bent portion P6. As a result, the direction of the flow path 600 is changed by approximately 180 degrees. In addition, the flow path 600 is bent by the bent portion P3 and the bent portion P7. As a result, the direction of the flow path 600 is changed by approximately 180 degrees. The flow path 600 is formed to the opening portion P4 and the opening portion P8. The number of times of bending of the flow path 600 is not limited to this, and it may be determined according to the size of the airflow discharge unit 520 or the flow path 600. Specifically, the number of times of bending of the flow path 600 may be determined so as to make the flow path length of the flow path 600 as long as possible while taking into consideration that the resistance of the fluid in the flow path 600 is not excessively large. In addition, the angle of the direction of change of the bent portion may not be 180 degrees, and may be determined in accordance with the size and shape of the airflow discharge unit 520.

The wall portion 630 may be formed of a straight line or a curved line when viewed in a cross section shown in FIG. 14. Whether the wall portion 630 is formed by a straight line or a curved line, the flow path 600 is configured to have a plurality of corners by the presence of the bent portions P2, P3, P6, and P7. As a result, the flow path 600 generates a substantially bent airflow.

The flow path 600 may be integrally formed with the airflow discharge unit 520, or may be manufactured separately from the airflow discharge unit 520, and may be installed in the airflow discharge unit 520.

<Role of the fluid device in which the air discharge unit 520 is installed> (1) The air flowing into the air discharge unit 520 from the inflow port 122 advances along either the upper part 140 or the lower part 142 of the outflow port 124 by the Coanda effect. For example, when the airflow advances along the upper part 140 of the outflow port 124, the pressures near the openings P4 and P8 are lower than the pressures near the openings P1 and P5. Since the gas system flows from the high pressure side to the low side, the air flow in the left flow path 600 generates a flow from the opening P1 toward the opening P4. In the flow path 600 on the right side, an air flow is generated from the opening portion P5 toward the opening portion P8.

If this continues, the pressures near the openings P4 and P8 and the pressures near the openings P1 and P5 will be reversed, and the pressures near the openings P4 and P8 will be lower than those of the openings P1 and P8. The pressure near P5 is high. Therefore, the airflow traveling along the upper portion 140 will proceed along the lower portion 142.

When the airflow advances along the lower portion 142, the pressures near the openings P1 and P5 are lower than the pressures near the openings P4 and P8. Since the gas system flows from the high pressure side to the low side, the air flow in the flow path 600 on the left side generates an air flow from the opening portion P4 toward the opening portion P1. In the flow path 600 on the right side, an air flow is generated from the opening portion P8 toward the opening portion P5.

If this continues, the pressures near the openings P4 and P8 and the pressures near the openings P1 and P5 will be reversed, and the pressures near the openings P1 and P5 will be lower than those of the openings P4 and P5. The pressure near P8 is high. Therefore, the airflow traveling along the lower portion 142 will again advance along the upper portion 140.

By repeating this action, the airflow X along the upper portion 140 and the airflow Y along the lower portion 142 will continue to alternately switch at approximately constant cycles. Therefore, the airflow passing through the airflow ejection unit 520 is slowly shaken in the direction of the upper portion 140 and the direction of the lower portion 142.

The flow path 600 of the airflow discharge unit 520 of the fluid equipment according to an embodiment of the present invention includes a plurality of bent portions that greatly change the direction of the airflow, and is formed into a shape that is bent multiple times. Thereby, even if it is a miniaturized air discharge unit, a flow path length can be made long. If the flow path length of the flow path 600 is long, the airflow direction switching caused by the aforementioned pressure switching will be performed slowly. Therefore, the airflow across the airflow discharge unit 520 is slowly shaken in the direction of the upper portion 140 and the direction of the lower portion 142. Thereby, the effect of shaking can be improved.

The air discharge units 120 and 520 of the fluid device 100 of the aforementioned embodiment have the following features.

The air discharge unit 120 (520) of the fluid device 100 includes: an inlet 122 through which the air flows; an outlet 124 through which the air flows; a first flow path connecting the inlet 122 and the outlet 124; and having two parts A second flow path 200 (600) that communicates with the first flow path through the openings of the two parts, and the second flow path 200 (600) is provided outside the first flow path; The distance L1 between the openings of the two parts of the second flow path 200 (600) is longer than the length L2 of an imaginary line connecting the openings of the two parts to a line parallel to the peripheral wall forming the first flow path. Long (see Figure 12). Therefore, in the air flow discharge units 120 and 520 of the aforementioned embodiment, the flow outlet 124 side of the flow path 200 and flow path 600 is closed by the outer peripheral portion 123 defining the flow outlet 124.

The preferred embodiments of the present invention have been described in detail above. However, the scope of rights of the present invention is not limited thereto.

For example, if the air discharge units 120 and 520 of the fluid device 100 according to an embodiment of the present invention are used, it is possible to efficiently blow air to the inner hair even when the amount of hair or fibers is large and the length of the hair or fibers is long. Or fiber. In addition, the user can feel the movement of the wind. Therefore, the air discharge units 120 and 520 are particularly suitable for a hair dryer, a dryer, a hair dryer for pets, and the like. However, the air discharge unit 120, 520 can also be applied to other items similar to the demand.

In addition, if the airflow discharge units 120 and 520 of the fluid device 100 according to an embodiment of the present invention are used, the shaking wind can be sent out gradually. Therefore, the airflow discharge units 120 and 520 are particularly suitable for electric fans and the like. However, the air discharge unit 120, 520 can also be applied to other items similar to the demand.

In addition, the airflow discharge unit according to an embodiment of the present invention may be an accessory attached to the front end of the air outlet 112 of the main body 110, or may be built in the air outlet 112 of the fluid device 100.

In addition, in the airflow discharge units 120 and 520 of the fluid equipment 100 according to an embodiment of the present invention, the left and right flow paths 200 and 600 are symmetrically formed. This makes it easy to control the airflow. However, this configuration is not necessary, and the left and right flow paths 200 and 600 may be formed asymmetrically in a range that does not hinder the switching of the airflow direction toward the upper and lower directions. In addition, by providing two flow paths 200 and 600, the airflow can be effectively shaken up and down. However, this configuration is not necessary, and as long as the airflow direction can be switched upward and downward, the number of the flow paths 200 and 600 may be one.

100‧‧‧fluid equipment

110‧‧‧ Ontology

112‧‧‧wind blowing outlet

120, 520‧‧‧Airflow discharge unit

122‧‧‧Inlet

123‧‧‧ Peripheral Department

124‧‧‧ Outlet

126‧‧‧ protrusion

127‧‧‧ recess

140‧‧‧upper

142‧‧‧lower

200, 600‧‧‧flow

210‧‧‧ rib

230, 630‧‧‧wall

605‧‧‧outer wall

FIG. 1 is a perspective view showing a state in which an air flow discharge unit of a fluid device according to an embodiment of the present invention is installed in a main body. (2) FIG. 2 is a plan view showing a state in which an air flow discharge unit of a fluid device according to an embodiment of the present invention is installed in a main body. (3) FIG. 3 is a side view showing a state in which an air flow discharge unit of a fluid device according to an embodiment of the present invention is installed in a main body. (4) FIG. 4 is a perspective view showing a state in which an air flow discharge unit of a fluid device according to an embodiment of the present invention is installed in a main body. (5) FIG. 5 is a plan view showing a state in which an air flow discharge unit of a fluid device according to an embodiment of the present invention is installed in a main body. (6) FIG. 6 is a side view showing a state in which an air flow discharge unit of a fluid device according to an embodiment of the present invention is installed in a main body. (7) FIG. 7 is a front view showing a state in which the air discharge unit of the fluid equipment according to an embodiment of the present invention is installed in the main body. FIG. 8 is a perspective view showing a configuration of an outflow port side of an airflow discharge unit of a fluid device according to an embodiment of the present invention. FIG. 9 is a cross-sectional view of an air flow discharge unit of a fluid equipment according to an embodiment of the present invention as viewed from an outflow port side. Fig. 10 is an exploded perspective view showing an inflow port of an airflow discharge unit of a fluid device according to an embodiment of the present invention. Fig. 11 is a cross-sectional perspective view showing a configuration of an inlet side of an airflow discharge unit of a fluid device according to an embodiment of the present invention. Fig. 12 is a cross-sectional view of an inlet side of an airflow discharge unit of a fluid equipment according to an embodiment of the present invention. Fig. 13 is a cross-sectional perspective view showing the configuration of the inflow side of the airflow discharge unit of the fluid equipment of the second embodiment of the present invention. Fig. 14 is a cross-sectional view of the inflow side of an airflow discharge unit of a fluid equipment according to a second embodiment of the present invention.

Claims (13)

An airflow discharge unit includes: an inlet through which the airflow flows; 流 an outlet through which the airflow flows out; 第 a first flow path connecting the inlet and the outlet; and an opening portion having two parts and passing through the opening The second flow path is connected to the first flow path, and the second flow path is provided outside the first flow path; The second flow path is defined by a wall portion including a plurality of ribs, and The outflow port side of the second flow path is closed by an outer peripheral portion defining the outflow port. The airflow discharge unit according to claim 1, wherein the second flow path is configured to have a plurality of corners. The airflow discharge unit according to claim 1 or 2, wherein: the ribs are alternately formed in a first wall portion defining the second flow path and a second wall portion facing the first wall portion. The airflow discharge unit according to claim 1 or 2, wherein the second flow path is provided with two left and right symmetrically when viewed in a cross section. The airflow discharge unit according to claim 3, wherein the second flow path is provided with two left and right symmetrically when viewed in cross section. The air-flow discharge unit according to claim 4, wherein a pair of recessed portions recessed toward the inflow-portion side are formed on the outer peripheral portion defining the outflow port, and the pair of recessed portions are arranged in the left-right direction at the center portion in the up-down direction. And formed. The airflow discharge unit according to claim 5, wherein a pair of recesses recessed toward the inflow side are formed on the outer peripheral portion defining the outflow port, and the pair of recesses are arranged in the left-right direction at the center portion in the up-down direction. And formed. The airflow discharge unit according to claim 1 or 2, wherein the rib is formed in a convex shape having a width larger than one-half of a width of the second flow path. An airflow discharge unit includes: an inlet through which the airflow flows; 流 an outlet through which the airflow flows out; 第 a first flow path connecting the inlet and the outlet; and an opening portion having two parts and passing through the opening The second flow path is connected to the first flow path, and the second flow path is provided outside the first flow path; The second flow path includes a change in the direction of the air flow passing through the second flow path. A wall portion of the plurality of bent portions is defined, and an outer peripheral portion of the outflow port is defined to close the outflow port side of the second flow path. The airflow discharge unit according to claim 9, wherein the second flow path is configured to have a plurality of corners. The air discharge unit according to claim 1 or 9, wherein the is installed in a hair dryer. A fluid device comprising: (1) the airflow discharge unit according to any one of claims 1 to 11; and (2) a main body that discharges airflow to the inflow port of the airflow discharge unit. An airflow discharge unit includes: an inlet through which the airflow flows; 流 an outlet through which the airflow flows out; 第 a first flow path connecting the inlet and the outlet; and an opening portion having two parts and passing through the opening The second flow path is connected to the first flow path, and the second flow path is provided outside the first flow path; 路 The second flow path is defined by a wall portion including a plurality of ribs, and ， is the aforementioned The distance L2 of the second flow path, that is, the distance L1 between the openings of the two positions, is longer than the length L2 of an imaginary line connecting the openings of the two positions and parallel to the peripheral wall forming the first flow path. Longer.