WO2015118803A1

WO2015118803A1 - Electric fan

Info

Publication number: WO2015118803A1
Application number: PCT/JP2015/000147
Authority: WO
Inventors: 田井　泰; 宏吉川
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2014-02-06
Filing date: 2015-01-15
Publication date: 2015-08-13
Also published as: JPWO2015118803A1; CN105980711B; CN105980711A

Abstract

An electric fan equipped with: a base section (1); two support parts (2) provided on the base section (1) so as to oppose each other; securing parts (3) provided on each of the support parts (2); two lower support posts (4), the lower ends of which are secured by the securing parts (3); and a fan section (5), affixed to the upper ends of the lower support posts (4). The base section (1) is formed integrally with the support parts (2), and is formed of resin.

Description

Fan

The present invention relates to an electric fan.

A conventional electric fan has a U-shaped base made of metal, two support parts that can be fixed so as to face the base part, and two lower strut parts that can be fixed to the respective support parts, It consists of a ventilation part fixed to the upper end of a lower support | pillar part. The support portion is fixed to the base portion by the first fixing portion. The lower end of the lower column part is fixed to the support part by the second fixing part (see, for example, Patent Document 1).

JP-A-63-138196

The conventional electric fan has a problem that it takes time and effort to attach and assemble the lower support post to the base.

Therefore, an object of the present invention is to facilitate the attachment of the lower strut portion to the base portion and further improve the assemblability.

In order to achieve this object, the electric fan of the present invention includes a base part, two support parts provided to face the base part, and a fixing part provided to each support part. . Moreover, the two lower support | pillar parts by which a lower end is fixed by the fixing | fixed part and the ventilation part fixed to the upper end of a lower support | pillar part are provided. The base part is formed of resin integrally with the support part.

According to the present invention, when the lower strut portion is fixed to the base portion, the lower strut portion can be fixed by the fixing portion, so that the lower strut portion can be easily attached to the base portion, and the assemblability is further improved. Can be made.

FIG. 1 is a perspective view showing an appearance of a fan according to an embodiment of the present invention. FIG. 2 is an exploded view of the electric fan according to the embodiment of the present invention. FIG. 3 is a perspective view of the base portion of the electric fan according to the embodiment of the present invention as seen from the bottom surface. FIG. 4 is an enlarged perspective view of the support portion of the base portion of the electric fan according to the embodiment of the present invention as seen from the bottom surface. FIG. 5 is an enlarged perspective view showing a support portion of the base portion of the electric fan according to the embodiment of the present invention. FIG. 6 is an enlarged perspective view showing a connecting portion of the electric fan according to the embodiment of the present invention. Drawing 7 is a mimetic diagram which looked at the base part of the electric fan of an embodiment of the invention from the bottom.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

FIG. 1 is a perspective view showing an appearance of a fan according to an embodiment of the present invention. FIG. 2 is an exploded view of the electric fan. The electric fan of the present embodiment includes a base part 1, a support part 2, a fixing part 3, a lower support part 4, and a blower part 5.

FIG. 3 is a perspective view of the base 1 of the electric fan according to the embodiment of the present invention as viewed from the bottom. As shown in FIGS. 1 and 3, the base portion 1 is symmetrical in the front-rear direction and symmetrical in the left-right direction. The base portion 1 has a horizontally long rectangular shape that is long in the left-right direction. The vertical cross-sectional shape of the base part 1 is a concave shape opened downward. The base unit 1 includes an inner peripheral surface 6, a top surface 7, and an outer peripheral surface 8. The base portion 1 includes a large number of plate-shaped base reinforcing ribs 9 that connect the inner peripheral surface 6, the top surface 7, and the outer peripheral surface 8 to the lower surface. The base portion 1 includes two support portions 2 that face each other on the left and right short sides.

FIG. 4 is an enlarged perspective view of the support portion 2 of the base portion 1 of the electric fan according to the embodiment of the present invention as seen from the bottom surface. FIG. 5 is an enlarged perspective view showing the support portion 2 of the base portion 1 of the electric fan. As shown in FIGS. 3, 4, and 5, the support portion 2 includes a cylindrical upper support portion 10 that extends upward from the upper surface of the base portion 1, and a cylinder that extends downward from the lower surface of the base portion 1. It consists of a lower support part 11 having a shape. The upper support portion 10 and the lower support portion 11 communicate with each other.

The left and right support portions 2 of the base portion 1 include a fixing portion 3 as shown in FIGS. 1, 4, and 5. The lower ends of the two lower strut portions 4 are fixed to the support portion 2 by the fixing portion 3. The lower support portion 11 is integrated with the inner peripheral surface 6 of the base portion 1. A plate-shaped support reinforcement rib 12 having a plurality of reinforcement portions and having a vertical surface extends from the peripheral surface of the lower support portion 11 to the lower surface of the base portion 1 and the base reinforcement rib 9.

The lower support column 4 has a cylindrical shape in which the axial direction is the vertical direction. The material of the lower support part 4 is metal. A blower unit 5 is fixed to the upper end of the lower support column unit 4.

The blower unit 5 is connected to the upper end of the lower support column 4, the two upper support units 14 whose lower ends are fixed to the upper part of the connection unit 13, and the upper support unit 14 is rotated. It is comprised from the ventilation part 15 provided freely.

The upper strut portion 14 has a cylindrical shape in which the axial direction is the vertical direction. The material of the upper support | pillar part 14 is a metal. A blower 15 can be rotatably mounted on the upper support 14.

The connecting portion 13 includes two connecting support portions 16, a connecting fixing portion 17, and a connecting plate portion 18 having a horizontally long rectangular plate shape. The upper ends of the lower support pillars 4 and the lower ends of the upper support pillars 14 are inserted into the two connection support parts 16. The connection fixing part 17 is provided above and below the connection support part 16. The connecting plate part 18 connects the two connecting support parts 16.

FIG. 6 is an enlarged perspective view showing the connecting portion 13 of the electric fan according to the embodiment of the present invention. As shown in FIG. 6, the connection support portion 16 has a cylindrical shape in which the axial direction is the vertical direction. The material of the connection support part 16 is resin. The connection fixing part 17 includes a lower connection fixing part 19 that connects the connection support part 16 and the upper end of the lower support part 4, and an upper connection fixing part 20 that connects the connection support part 16 and the lower end of the upper support part 14. Become.

The lower connection fixing portion 19 includes a lower hole 21, an upper screw hole 22, and an upper screw 23. The lower hole 21 is provided on the outer side below the connection support portion 16. The upper screw hole 22 is provided on the upper portion of the lower support column 4 so as to face the lower hole 21. The upper screw 23 is screwed to the upper screw hole 22 through the lower hole 21. The upper connection fixing portion 20 includes an upper hole 24, a lower screw hole 25, and a lower screw 26 screwed to the lower screw hole 25 via the upper hole 24. The upper hole 24 is provided on the outer side above the connection support portion 16. The lower screw hole 25 is provided at the lower portion of the upper support portion 14 so as to face the upper hole 24. The lower screw 26 is screwed to the lower screw hole 25 through the upper hole 24. The two connection support parts 16 are opposed to each other in the left-right direction in the base part 1. The axial direction of the lower hole 21 and the upper hole 24 is the left-right direction in the base part 1. The two connection support portions 16 are formed of resin integrally at both ends of the connection plate portion 18.

As shown in FIG. 2, the electric fan according to the present embodiment is assembled by fixing the air blowing portion 5, the connecting portion 13, the two lower strut portions 4, and the base portion 1 with screws. That is, in the packing state, the air blowing unit 5, the connecting unit 13, the two lower support columns 4, and the base unit 1 are stored separately in one packing case.

The feature of this embodiment is that the base 1 is integrally formed with the support 2 and made of resin. Thereby, when fixing the lower support | pillar part 4 to the base part 1, the lower support | pillar part 4 can be fixed to the support part 2 of the base part 1 by the fixing part 3. Therefore, the attachment of the lower support column 4 to the base unit 1 can be facilitated, and the assemblability can be further improved.

Specifically, as shown in FIGS. 3, 4, and 5, the support portion 2 includes a cylindrical upper support portion 10 that extends upward from the upper surface of the base portion 1, and a lower surface of the base portion 1. And a cylindrical lower support portion 11 extending downward. The upper support portion 10 and the lower support portion 11 communicate with each other, and the lower end of the lower support column portion 4 can be inserted into the upper support portion 10 and the lower support portion 11. The upper support portion 10 includes a fixing portion 3 that fixes the lower support column portion 4 to the support portion 2. The lower support part 11 is provided with a reinforcing part connected to the base part 1. The reinforcing portion is a plurality of reinforcing portions from the peripheral surface of the lower support portion 11 to the lower surface of the base portion 1 and the base reinforcing rib 9, and is a plate-like support reinforcing rib 12 having a vertical surface.

Thus, when the lower support 4 is fixed to the base 1, first, the lower end of the lower support 4 is inserted from the upper opening of the upper support 10 that is the support 2 of the base 1. Next, the lower end of the lower support part 4 is further inserted to the lower end of the lower support part 11. Finally, the lower support column portion 4 is fixed to the support portion 2 by the fixing portion 3 of the upper support portion 10. In this way, the lower support column 4 can be inserted into the support unit 2 of the base unit 1, and the lower support unit 4 can be fixed to the support unit 2 by the fixing unit 3. Therefore, it is possible to facilitate the attachment of the lower strut portion 4 to the base portion 1. Further, the lower support part 11 is provided with a reinforcing part that is connected to the base part 1. Therefore, even when a force is applied to the lower support portion 11 in the direction in which the lower support column 4 falls, the force applied to the support unit 2 from the lower support column 4 can be received by the base unit 1 via the reinforcing portion. it can. Therefore, the strength of the support part 2 is improved and the blower part 5 can be supported.

Further, as shown in FIG. 5, the distance X1 between the axis of the fixed part 3 and the lower end of the lower support part 4 and the distance X1 ′ between the axis of the fixed part 3 and the lower end of the lower support part 11 are 3 is longer than the distance X2 between the axis 3 and the upper end of the upper support 10.

Thus, even when a force is applied to the lower support column 4 in the direction in which the lower support column 4 falls, the lower support column 4 tilts so as to rotate around the axis of the fixed unit 3. Therefore, the moving distance of the lower support column 4 at the upper end of the upper support unit 10 is smaller than the moving distance of the lower support column 4 at the lower end of the lower support unit 11. Thereby, the force applied to the upper end of the upper support part 10 becomes smaller than the force applied to the lower end of the lower support part 11, and damage to the upper end of the upper support part 10 can be suppressed. Moreover, the force applied to the lower support part 11 from the lower support | pillar part 4 can be received in the base part 1 via a reinforcement part. Therefore, the strength of the support part 2 is improved and the blower part 5 can be supported.

Further, as shown in FIG. 5, the fixing portion 3 includes a hole 27 provided inside the upper support portion 10, and a screw hole 28 provided in the lower portion of the lower support portion 4 so as to face the hole 27. The screw 29 is screwed to the screw hole 28 through the hole 27. The two support portions 2 face the left-right direction in the base portion 1, and the axial direction of the hole 27 is the left-right direction in the base portion 1. As a result, the screw 29 is positioned inward of the upper support portion 10. Therefore, the screw 29 is difficult to see from the outside of the base part 1 and the design is improved.

Further, as shown in FIG. 4, the opening at the lower end of the lower support portion 11 is closed by the lower cover 30. Thereby, the intensity | strength of the lower support part 11 improves. Furthermore, when the lower end of the lower support column 4 is inserted and the lower end of the lower support column 4 comes into contact with the lower cover 30 which is the lower end of the lower support unit 11, the hole 27 provided inside the upper support unit 10 and the lower The screw hole 28 provided in the lower part of the column part 4 communicates. Thereby, the assembly workability by the screw 29 is improved.

FIG. 7 is a schematic view of the base portion of the electric fan according to the embodiment of the present invention as viewed from the bottom. The axis passing through the point T up and down is the central axis of the upper support portion 10 and the lower support portion 11. The line segment UV is a line segment that passes through the point T and is perpendicular to the inner peripheral surface 6 and the outer peripheral surface 8. The point S is the midpoint of the line segment UV. As can be seen from FIG. 7, the point T is provided closer to the inner peripheral surface 6 than the point S in the line segment UV. That is, the central axes of the upper support portion 10 and the lower support portion 11 that are the support portions 2 are provided closer to the inner peripheral surface 6 than the midpoint of the line segment perpendicular to the inner peripheral surface 6 and the outer peripheral surface 8. . Specifically, the distance TV between the central axes of the upper support portion 10 and the lower support portion 11 that are the support portions 2 and the inner peripheral surface 6 of the base portion 1 is determined by the upper support portion 10 and the lower support portion 2 that are the support portions 2. It is smaller than the distance UT between the central axis of the support part 11 and the outer peripheral surface 8 of the base part 1. Thereby, the stability of the electric fan is improved.

As described above, the electric fan according to the present embodiment includes the base portion 1, the two support portions 2 provided so as to face the base portion 1, and the fixed portions provided in the respective support portions 2. 3. In addition, two lower support columns 4 whose lower ends are fixed by the fixing unit 3 and an air blowing unit 5 fixed to the upper ends of the lower support columns 4 are provided. The base portion 1 is formed of resin integrally with the support portion 2. Thereby, attachment of the lower support | pillar part 4 to the base part 1 can be made easy, and assembly property can be improved further.

The support portion 2 is a concave shape whose vertical cross-sectional shape opens downward, and has a cylindrical upper support portion 10 extending upward from the upper surface of the base portion 1 and extends downward from the lower surface of the base portion 1. And a lower support portion 11 having a cylindrical shape. The upper support portion 10 and the lower support portion 11 communicate with each other. The lower end of the lower support 4 is inserted into the upper support 10 and the lower support 11. The upper support part 10 includes a fixing part 3. The lower support part 11 is provided with a reinforcing part 12 connected to the base part 1. Thereby, attachment of the lower support | pillar part 4 to the base part 1 can be made easy. Further, even when a force is applied to the lower support part 11 in the direction in which the lower support part 4 falls, the force applied to the support part 2 from the lower support part 4 is received by the base part 1 via the reinforcing part 12. Can do. Therefore, the strength of the support part 2 is improved and the blower part 5 can be supported.

Further, the distance between the axis of the fixed part 3 and the lower end of the lower support part 4 and the distance between the axis of the fixed part 3 and the lower end of the lower support part 11 are the same as the axis of the fixed part 3 and the upper support part 10. Longer than the distance from the top. Thereby, the moving distance of the lower support column 4 at the upper end of the upper support unit 10 is smaller than the moving distance of the lower support unit 4 at the lower end of the lower support unit 11. Therefore, the force applied to the upper end of the upper support portion 10 is smaller than the force applied to the lower end of the lower support portion 11, and damage to the upper end of the upper support portion 10 can be suppressed.

The fixing portion 3 includes a hole 27 provided in the upper support portion 2, a screw hole 28 provided in a lower portion of the lower support portion 4 so as to face the hole 27, and a screw hole via the hole 27. And a screw 29 screwed to 28. The two support portions 2 face the left-right direction in the base portion 1, and the axial direction of the hole is the left-right direction in the base portion 1. As a result, the screw 29 is positioned inward of the upper support portion 10. Therefore, the screw 29 is difficult to see from the outside of the base part 1 and the design is improved.

Further, the central axes of the upper support portion 10 and the lower support portion 11 are provided closer to the inner peripheral surface 6 than the midpoint of the line segment perpendicular to the inner peripheral surface 6 and the outer peripheral surface 8 of the base portion 1. . Thereby, the stability of the electric fan is improved.

According to the present invention, the lower support portion can be easily attached to the base portion, and the assemblability can be further improved, which is useful for a fan.

DESCRIPTION OF SYMBOLS 1 Base part 2 Support part 3 Fixed part 4 Lower support | pillar part 5 Air blower part 6 Inner peripheral surface 7 Top surface 8 Outer peripheral surface 9 Base reinforcement rib 10 Upper support part 11 Lower support part 12 Support reinforcement rib 13 Connection part 14 Upper support Part 15 Blower part 16 Connection support part 17 Connection fixing part 18 Connection plate part 19 Lower connection fixing part 20 Upper connection fixing part 21 Lower hole 22 Upper screw hole 23 Upper screw 24 Upper hole 25 Lower screw hole 26 Lower screw 27 Hole 28 Screw Hole 29 Screw 30 Lower cover

Claims

A base,
Two support portions provided to face the base portion;
A fixing portion provided on each of the support portions;
Two lower struts whose lower ends are fixed by the fixing part;
A blower part fixed to the upper end of the lower support part,
The base portion is a fan formed of resin integrally with the support portion.
The support portion is a concave shape whose vertical cross-sectional shape is opened downward, a cylindrical upper support portion extending upward from the upper surface of the base portion, and a cylindrical shape extending downward from the lower surface of the base portion With a lower support part,
The upper support portion and the lower support portion communicate with each other,
The lower end of the lower support part is inserted into the upper support part and the lower support part,
The upper support portion includes the fixing portion,
The electric fan according to claim 1, wherein the lower support part is provided with a reinforcing part connected to the base part.
The distance between the shaft center of the fixed part and the lower end of the lower support part, and the distance between the shaft center of the fixed part and the lower end of the lower support part are the distance between the axis of the fixed part and the upper support part. The electric fan according to claim 2, wherein the electric fan is longer than the distance from the upper end.
The fixing portion is screwed to the screw hole through the hole provided inward of the upper support portion, a screw hole provided in a lower portion of the lower support portion facing the hole, and the hole. Made of screws,
The two support parts are opposed to each other in the left-right direction of the base part,
The electric fan according to claim 2 or 3, wherein an axial direction of the hole is a left-right direction of the base portion.
5. The center axis of the upper support portion and the lower support portion is provided closer to the inner peripheral surface than a midpoint of a line segment perpendicular to the inner peripheral surface and the outer peripheral surface of the base portion. The electric fan in any one of.