JPH04134199A - Wall type electric fan - Google Patents

Abstract

PURPOSE:To dispense with attached parts of an electric fan at a rear part to improve a cooling property and ventilation, and enlarging an upward angle of the electric fan by supporting an air blowing electric fan from right and left with a supporting shaft provided in a supporting frame freely to look upward and downward, and fitting a compact electric motor for oscillating the fan right and left in a rear part of the supporting frame. CONSTITUTION:When a compact electric motor 21 is rotated, the power is transmitted to a connecting member 14 through an eccentric cam 19 and a rod 22, and a supporting frame 7 performs the oscillation movement in right and left relatively. At the time of adjusting an upward/downward angle of the electric fan 1, the electric fan 1 is rotated around of a supporting shaft, and a head part of a ball and spring 6 is fitted in any one of holes 10 of a supporting plate 8, and is fixed temporarily at a predetermined position. Namely, the electric fan 1 is supported by the supporting shaft 9 in a cylinder 4 provided right and left at the center of the electric fan 1. Consequently, since a turning range at the time of looking upward and downward is reduced and parts to be attached to the rear part of the electric fan 1 is eliminated, an obstruction which abuts on the supporting frame 7 is eliminated to enlarge an upward angle of the electric fan 1.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a wall fan oscillated by a small electric motor.

Conventional technology In recent years, in order to make the temperature distribution uniform indoors in winter,
One method is to use a wall-mounted fan like a circulator.

Conventionally, this type of wall-mounted fan has had a configuration as shown in FIG. That is, an electric motor 53 having a blade 51 fixed to a rotating shaft 52 is supported by a bearing portion 58 via a pivot shaft 56 so as to be rotatable left and right. In addition, a small electric motor 54 is fixed to a metal plate attached to the rear of the electric motor 53.
An eccentric cam 57 is attached to the output shaft of No. 4, and this eccentric cam 57
and one end of the bearing portion 58 are connected by a rod 55,
The rotational movement of the small electric motor 54 is a swinging movement of the electric motor 53 about the pivot shaft 56. In addition, the bearing portion 58
is rotatably supported on a stand portion 65 fixed to a wall surface so as to be vertically and vertically movable. A metal fitting 64 having a circular arc cross section and having a plurality of holes 64a is installed at the lower end of the bearing part 58. A receiving part 66 of a stand part 65 is arranged at a position facing this metal fitting 64, and the receiving part 66 of the stand part 65 is arranged to face the metal fitting 64. Ball 62 and spring 63 to 66a
has been inserted. The ball 62 is inserted into one of the holes 64a of the metal fitting 64 to lock the bearing portion 58 at a predetermined angle.

Problems to be Solved by the Invention In such a conventional configuration, since the metal plate and the small electric motor 54 are present at the rear end of the electric motor 53, cooling ventilation to the electric motor 53 becomes poor, and the heat resistance temperature of the electric motor 53 is set to a high (setting). I had a problem that I had to do.

Further, when the electric motor 53 is rotated to change the air blowing direction upward, the outside 67 of the electric motor 53 comes into contact with the upper surface of the stand portion 65, so that there is a problem that a large upward air blowing angle cannot be obtained.

The present invention solves the above-mentioned problems, and provides a wall-mounted fan that can improve the ventilation of the electric motor and reduce the temperature rise of the electric motor, as well as increase the upward angle of air blowing and expand the air blowing range in the vertical direction. The purpose is to

Means for Solving the Problem In order to solve this problem, the present invention includes an electric motor having a blower blade attached to a rotating shaft, and a support frame having a cross-sectional shape that supports the electric motor so that it can be raised and lowered from left and right support shafts. , a pivot shaft extending downward from the support frame, a coupling body supporting the pivot shaft so as to be rotatable left and right, a base attached to a wall surface supporting the coupling body, and a base mounted on the wall surface supporting the coupling body; It has a structure that includes a small electric motor for left and right oscillation drive fixed at the rear.

Function: With this configuration, the elevating and elevating axes are provided to the left and right of the approximate center of the blower motor, so the range of movement when the motor is elevating and elevating is reduced, and the small electric motor for oscillation is fixed at a position separate from the blower motor. As a result, the rear part of the motor does not protrude, and the motor can have a large elevation angle around the elevation axis.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. That is, blades 3 are attached to the rotating shaft 2 of the electric motor 1 . A pair of cylindrical portions 4 protrude on the left and right sides of the electric motor 1, and a pair of recesses 5 are provided on the side surfaces of the electric motor 1 adjacent to the cylindrical portions 4.
has been established. A ball and a spring 6 are inserted into each of the four parts 5. A support frame 7 having a substantially concave cross section is provided so as to sandwich both end surfaces of the electric motor 1.
A support shaft 9 is screwed into the pair of upright support plates 8, and the tip of the support shaft 9 is fitted into the cylindrical portion 4 to pivotally support the electric motor 1 so as to be vertically movable. A plurality of through holes 10 are arranged in an arc shape in the support plate 8 to which the support shaft 9 is screwed, and the ball and the head of the spring 6 are fitted into one of the through holes 10 to tilt the electric motor 1 to a predetermined angle. It is locked at a pivot angle. A pivot shaft 12 extends downward from the bottom surface 11 of the support frame 7, and is pivotally supported by a bearing section 13 of a combined body 14 so as to be rotatable left and right. Further, a small electric motor 21 is fixed to the rear of the bottom surface 11 of the support frame 7, and a pivot shaft 12
It is located at a position that reduces weight imbalance around the . The eccentric cam 19 fixed to the output shaft of the small electric motor 21 and a part of the coupling body 14 are connected by a rod 22, and the rotational movement of the small electric motor 21 is converted into the left-right oscillating movement of the electric motor 1. The lower end of the combined body 14 is fixed to a base 23 attached to a wall surface.

When the small electric motor 21 rotates in the above configuration, force is transmitted to the coupling body 14 via the eccentric cam 19 and the rod 22,
The support frame 7 performs a relative left and right swinging motion. electric motor
When adjusting the elevation angle of the support plate 8, rotate it around the support shaft 9 so that the head of the ball and spring 6 aligns with the through hole 10 of the support plate 8.
is temporarily fixed at a predetermined position by moving and engaging one of the through holes 10. Therefore, the support shaft 9 is pivotally supported by the cylinders 4 provided on the left and right sides at the center of the electric motor 1, so the range of rotation when the electric motor 1 is raised or lowered is reduced, and since there is nothing attached to the rear of the electric motor 1, the support 7 does not exist, and the elevation angle of the motor 1 can be increased. By providing a notch in the front part of the bottom surface 11 of the support frame 7, the motor 1 can be The lower end of the electric motor 1 does not come into contact with the motor 1 when the motor 1 is elevated, and the elevation angle can be increased.

As described above, according to this embodiment, the left and right sides of the electric motor 1 equipped with the blades 3 are supported vertically and upwardly by the support shaft 9 screwed into the support frame 7, and the small electric motor 21 is mounted behind the bottom surface 11 of the support frame 7. By arranging the motor 1, the attached parts can be removed from the rear of the motor 1, which increases the amount of ventilation to the motor 1, and reduces the range in which the motor 1 can be tilted and rotated, allowing the motor 1 to increase its upward angle. can do.

Effects of the Invention As described above, according to the present invention, a blower electric motor is rotatably supported from the left and right by support shafts provided on a support frame, and a small electric motor for left and right swinging is attached to the rear of the support frame. Since there are no attached parts at the rear of the electric motor, it is possible to realize an excellent wall-mounted fan that has the effect of improving cooling ventilation and increasing the upward angle of the electric motor.

[Brief explanation of drawings]

FIG. 1 is a side view of the interior of a wall fan according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA', and FIG. 3 is a side view of the interior of a conventional wall fan. 1...Electric motor, 3...Blade, 7...
...Support frame, 9...Support shaft, 12...
・Pivot shaft, 14... Combined body, 21...
Small electric motor, 23... base. Name of agent: Patent attorney Akira Okaji, 2 others +-4: bren 3--Ippane 7- Kumiko P t4- λ8 combination 2f--Li1\riA吃←汀923--One base

Claims (1)

[Claims] An electric motor with a blower blade attached to a rotating shaft, a support frame with an abbreviated cross-section that supports the electric motor so that it can be raised and lowered freely by left and right support shafts, a pivot shaft that extends downward from this support frame, and this pivot support. It has a joint that supports the shaft so that it can rotate left and right, a base that is attached to a wall that supports the joint, and a small electric motor that drives the left and right oscillation that is fixed to the rear part of the support frame. Wall fan.