JPH0592508U - Channel structure - Google Patents

Abstract

(57) [Abstract] [Purpose] It is intended to provide a flow path structure which directs gas flows to a plurality of heat generating elements to reduce pressure loss and flow rate loss, improve efficiency, and further facilitate flow rate design. . [Structure] A second through-hole 13 penetrating through the dispersed heat-generating portion 12 and a spiral-like flow path groove 15 connected to the second through-hole 13 starting from an appropriate position. The metal plate member 18 and the surface of the metal plate member 18 on which the spiral-shaped channel groove 15 is present are covered, and the first flow-through hole 17 is provided at a position facing the starting point of the spiral-shaped channel groove 15 as a flow channel. A flow path structure 14 is constituted by the lid body 16, and a blower 11 which is a fluid transportation machine is fixed to the first flow passage hole 17. [Effect] Each flow path is defined as a fluid having a flow rate determined by the product of the flow velocity of the fluid taken from the first flow hole by the blower in the flow path facing the first flow hole and the cross-sectional area of the opening. Through the second flow hole, and the flow path is formed in an Archimedes spiral shape or a logarithmic spiral shape to reduce the flow rate and the pressure loss, and an efficient heat dissipation design can be performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flow path structure for allowing a fluid to flow into or out of a first flow hole in a fluid transport machine and to flow out or flow in from a plurality of second flow holes, and particularly to a gas flow path in a first blower to blow gas. The present invention relates to a flow passage structure in the case of cooling a plurality of heating elements in the vicinity of the outside of the second flow hole by further inflowing or discharging and flowing out or flowing in from the plurality of second flow holes.

[0002]

[Prior Art]

 FIG. 5, FIG. 6 and FIG. 7 show a perspective view seen from the blower mounting surface, a perspective view seen from the opposite side of the blower mounting surface and a BB sectional view when the conventional flow path structure and the blower are combined.

Conventionally, the flow channel structure 4 of this type has a box shape with a hollow inside and has a first through hole 7 and a plurality of second through holes 3 penetrating the inside and the outside. ing. The blower 1 which is a fluid transporter when the fluid is a gas is attached to the first flow hole 7, and the gas which is the fluid flows through the first flow hole 7 by rotating the fan of the blower 1. It was flowed into the channel structure 4 and passed through the internal cavity and the second flow hole 3 to be blown to and cooled by the plurality of heat generating parts 2 provided in the vicinity of the second flow hole 3.

[0004]

[Problems to be solved by the device]

 In the conventional flow path structure 4, after the gas introduced from the blower 1 hits the wall surface of the back surface of the blower 1 inside the flow path structure 4, the direction of the gas flow is not fixed and the pressure loss becomes large. Further, there is a flow rate loss from each of the second flow holes 3, so that efficient heat dissipation design is difficult.

Therefore, an object of the present invention is to provide a first flow hole having a first flow hole in which a fluid transporter is installed and a plurality of second flow holes, and It is an object of the present invention to provide a flow path structure which gives directionality to a flow path connecting the second flow hole, reduces pressure loss and flow rate loss, improves efficiency, and further facilitates flow rate design.

[0006]

[Means for Solving the Problems]

 A first invention is a flow path structure having a first through hole in which a fluid transporter is installed and a plurality of second through holes, wherein the first through hole and the second through hole are provided. A flow path connecting the holes is provided, and the cross-sectional area of the opening of each flow path facing the first flow hole is set according to the flow velocity of the fluid in each flow path facing the first flow hole. The desired flow rate in each second flow hole is then obtained.

A second aspect of the invention is further characterized in that the fluid transportation machine is a blower and the fluid is a gas.

A third aspect of the invention is to provide the first flow hole in an Archimedes spiral shape or a logarithmic spiral shape around a rotation axis of the fluid transport machine in a plane direction perpendicular to a rotation axis direction of the fluid transport machine. It is characterized in that the above-mentioned flow path facing the above is provided.

[0009]

[Action]

 The fluid transporter causes the fluid to flow in or out through the first flow hole, and the fluid having a flow rate determined by the product of the flow velocity in the flow path facing the first flow hole and the cross-sectional area of the opening is It is made to flow out or be sucked from the through hole. Furthermore, a blower can be installed in the first ventilation hole portion to turn the fluid into gas. Further, it is formed in an Archimedes spiral shape or a logarithmic spiral shape to further reduce the flow rate and the pressure loss.

[0010]

【Example】

 Next, an embodiment of the present invention will be described with reference to FIGS. Fig. 1 shows the structure of the flow path structure and the blower. FIG. 2 is a perspective view of the combination of the flow path structure and the blower, as seen from the blower mounting surface. FIG. 3 is a perspective view of the blower mounting surface, which is the opposite of FIG. FIG. 4 shows a sectional view taken along line AA.

In FIG. 1, a second through-hole 13 penetrating through the dispersed heat generating portion 12 and a surface opposite to the surface facing the heat generating portion 12 are spiraled from an appropriate position on the surface as a starting point. The metal flow path groove 15 is connected to the second flow hole 13, and the metal plate member 18 is provided. The spiral flow path groove 15 is used as a flow path to cover a surface opposite to the heat generating portion 12. The flow passage structure 14 is configured by the lid body 16 having the first flow passage hole 17 at a position opposite to the starting point of the shape flow passage groove 15, and further, the first flow passage hole 17 is fluid-transported. The blower 11, which is a machine, is fixed.

Next, the operation will be described. The rotation of the fan of the blower 11 causes the fluid to flow through the first flow hole 17 and have a flow rate determined by the product of the flow velocity in the flow path facing the first flow hole 17 and the cross-sectional area of the opening. The heat is generated through the two flow holes 13 toward the plurality of heat generating parts 12, and the heat generating parts 12 are air-cooled.

By the way, although the blower 11 has been described as an axial blower in the embodiment, instead of this, a sirocco fan having a large static pressure is used so that the air is exhausted from the first ventilation hole 17 and the second ventilation fan is used. The gas around the heat generating portion 12 may be sucked through the flow holes.

[0014]

[Effect of the device]

 INDUSTRIAL APPLICABILITY As described above, according to the present invention, the fluid is introduced into or discharged from the first flow hole by the fluid transport machine, and the flow velocity in the flow path facing the first flow hole from the first flow hole is increased. The flow rate can be adjusted by varying the cross-sectional area by letting out or sucking the fluid at a flow rate determined by the product of the cross-sectional areas of the opening and the opening from the second flow hole. Furthermore, an air blower is installed as a fluid transporter, and the flow path is formed in the shape of an Archimedes spiral or logarithmic spiral to reduce the flow rate and pressure loss and enable efficient heat dissipation design.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a flow path structure and a blower.

FIG. 2 is a perspective view of a combination of a flow path structure and a blower as seen from a blower mounting surface.

FIG. 3 is a perspective view, as viewed from the opposite side of the blower mounting surface, which is the opposite of FIG. 2.

FIG. 4 is a sectional view taken along line AA.

FIG. 5 is a perspective view of a conventional flow passage structure and a blower, which is viewed from a blower mounting surface.

FIG. 6 is a perspective view of a conventional flow path structure and a blower when viewed from the opposite side of the blower mounting surface.

FIG. 7 shows a sectional view taken along line BB.

[Explanation of symbols]

 1, 11 Blower (fluid transporter) 7, 17 First flow hole 3, 13 Second flow hole 4, 14 Flow path structure 15 Spiral-like flow path groove (flow path)

Claims (3)

[Scope of utility model registration request] 1. A flow passage structure having a first through hole in which a fluid transporter is installed and a plurality of second through holes, wherein the first through hole and the second through hole are provided. The flow velocity of the fluid in each flow path facing the first flow hole and
The flow passage structure, wherein a desired flow rate in each second flow hole is obtained by the cross-sectional area of the opening of each flow passage facing the flow hole. 2. The fluid structure according to claim 1, wherein the fluid transport machine is a blower, and the fluid is a gas. 3. The surface facing the first flow hole in an archimedean spiral-like or logarithmic spiral-like shape about a rotation axis of the fluid transport machine in a plane direction perpendicular to a rotation axis direction of the fluid transport machine. The flow channel structure according to claim 1, wherein a flow channel is provided.