JP2011190999A - Air blowing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air blowing device preventing damage to a drive motor due to removal failure of a rotation prevention member. <P>SOLUTION: The air blowing device includes: a box-shaped body 1 having a built-in air blowing unit; the drive motor 7 fixed to inside of the body 1; a rotating shaft 5 directly connected to an output shaft 7a of the drive motor 7 and protruded from an end of the body 1; a mounting leg 2 having one end fixed to the rotating shaft 5 and the other end fixed to an installation face; a terminal table 10 provided on the mounting leg 2; and the rotation prevention member 8 which has a rotation restriction part 8a engaged with the mounting leg 2 and the body 1 to restrict rotation of the body 1 with respect to the mounting leg 2 and a terminal table shielding part 8b covering the terminal table 10 and enables rotation of the body 1 with respect to the mounting leg 2 by release of the engagement of the rotation restriction part 8a when the position is changed to expose the terminal table 10. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a blower device in which a main body can be rotated by a drive motor built in the main body and the blowing direction can be changed.

  Conventionally, a rotating shaft is provided on each side of the main body so as to be rotatable, and an outer side of the rotating shaft is fixed to a mounting foot extending from an installation surface such as a ceiling, and a driving motor in which the inner side of the rotating shaft is built in the main body. There is a blower device that rotates directly and rotates the drive motor to change the blowing direction by rotating the drive motor (see, for example, Patent Document 1).

International Publication No. 2009/107200

  According to the blower having the structure as described above, a drive motor having a structure capable of holding the rotational angle position is used in order to hold the orientation of the main body in a predetermined direction. Such a motor is difficult to handle because it is not proof and can be damaged when an external force is applied to forcefully rotate the drive shaft.

  On the other hand, as a general method for preventing the drive motor from being damaged, there is a method of attaching a rotation prevention wrapping material at the time of shipment and calling attention with a caution name plate indicating that it is not removed until the end of installation. However, there is a problem that this caution name plate does not work and is easily removed when unpacking. Conversely, forgetting to remove the anti-rotation packaging material, the drive motor is operated in a state in which the main body is prevented from rotating, and the drive motor is damaged.

  The present invention has been made in view of the above, and a first object is to maintain the main body even if an external force is applied to the main body of the blower device in which the drive motor for rotation is incorporated. An object of the present invention is to provide a blower device that prevents damage to the drive motor by preventing external force from being transmitted to the rotating drive motor.

  Also, the second purpose is that when performing wiring work during installation, the rotation prevention structure of the main body is always released at the end of wiring so that the wiring work cannot be done without removing the anti-rotation member. It aims at providing the air blower which does not have.

  In order to solve the above-described problems and achieve the object, the blower is rotatably mounted on the installation surface such as the ceiling of the present invention so that the wind direction is variable, and a box-shaped main body containing a blower unit; A drive motor fixed inside the main body, a rotary shaft directly connected to the drive shaft of the drive motor and projecting from the end of the main body, an attachment foot having one end fixed to the rotary shaft and the other end fixed to the installation surface, A terminal block provided on the mounting foot, a rotation restricting portion that engages with the mounting foot and the main body to restrict rotation of the main body with respect to the mounting foot, and a terminal block shielding wall that covers the terminal block, When the position is changed so as to be exposed, the rotation restricting portion is disengaged, and a rotation preventing member that enables the main body to rotate with respect to the attachment foot is provided.

  According to the present invention, the rotation of the main body is prevented even when an external force is applied to the main body that can be rotated by the drive motor built in the main body of the blower, and the rotation prevention of the main body is always canceled when the power is connected. There is an effect that it is possible to prevent the rotating drive motor from being damaged.

  Furthermore, according to the present invention, when performing the wiring work at the time of installation, the wiring work cannot be performed unless the rotation prevention member is removed. Therefore, the rotation prevention structure of the main body is always released at the end of the wiring, and there is no failure due to forgetting to remove.

FIG. 1 is a top view showing an overall appearance of Embodiment 1 of the blower of the present invention. FIG. 2 is a front view showing an overall appearance of the first embodiment of the blower of the present invention. FIG. 3 is a side view showing the overall appearance of the first embodiment of the blower of the present invention. FIG. 4 is a cross-sectional view of the main part of the blower device as seen from above showing in detail. FIG. 5 is a cross-sectional view of the main part of the blower device as seen from the front. FIG. 6 is a side view showing a state in which the blowing direction of the blower is changed. FIG. 7 is a perspective view of the rotation preventing member according to the first embodiment of the blower of the present invention. FIG. 8 is a cross-sectional view seen from the front showing a state where the rotation preventing member of FIG. 7 is attached to the blower and the drive motor is not rotated by an external force. FIG. 9 is a cross-sectional view showing a state where the rotation preventing member is removed from the blower and the wiring work is finished. FIG. 10: is a perspective view which shows the terminal block cover which is a rotation prevention member of Embodiment 2 of the air blower of this invention. FIG. 11 is a cross-sectional view showing a state where the terminal block cover of FIG. 10 is attached to the blower and the drive motor is not rotated by an external force. FIG. 12 is a cross-sectional view showing a state where the terminal block cover of FIG. 10 is incorporated in the blower, the rotation protection of the blower is released, and the wiring work is finished. FIG. 13 is a cross-sectional view showing a state in which the fall prevention claw has acted to prevent the terminal block cover from being dropped.

  Embodiments of a blower according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
It is an air blower that is rotatably attached to an installation surface such as a ceiling so that the wind direction is variable. FIG. 1 is a top view showing an overall appearance of Embodiment 1 of the blower of the present invention. FIG. 2 is a front view. FIG. 3 is a side view. The blower includes an elongated rectangular parallelepiped box-shaped main body 1, and mounting feet 2 and mounting feet (sub-mounting feet) 3 that are disposed at both ends (both side portions) of the main body 1 and support the main body from an installation surface 90 such as a ceiling. It is composed of A blower unit (not shown) including a blade and a motor is accommodated in the main body 1. A slit-like nozzle 4 is provided on one surface of the main body 1, and the air blows out through the slit-like nozzle 4 when the blower unit operates.

  FIG. 4 is a cross-sectional view of the main part of the blower device as seen from above showing in detail. FIG. 5 is a cross-sectional view of the main part of the blower device as seen from the front. FIG. 6 is a side view showing a state in which the blowing direction of the blower is changed. As shown in FIGS. 4 and 5, a rotating shaft 5 is attached to one side of the main body 1 so as to be rotatably supported by a bearing 1a. On the other side of the main body 1, a rotating shaft (sub rotating shaft) 6 is rotatably supported and attached to a bearing 1b. The distal ends of the rotating shaft 5 and the rotating shaft 6 protrude from the main body 1, the distal end of the rotating shaft 5 is fixed to the mounting foot 2, and the distal end of the rotating shaft 6 is fixed to the mounting foot 3.

  The air blower according to the present embodiment is supported by the two rotating shafts 5 and 6 that are rotatably provided at both ends of the main body 1 as described above. By increasing the strength of the bearing 1a indicating the rotating shaft 5, the rotating shaft 6 can be omitted, and the main body 1 can be rotatably supported only by the rotating shaft 5 and the mounting foot 2.

  A drive motor 7 is fixed inside the main body 1, and the rear end of the rotary shaft 5 is directly connected to the output shaft 7 a of the drive motor 7. Since the mounting feet 2 and 3 are fixed to the installation surface 90, when the drive motor 7 built in the main body 1 operates, the main body 1 rotates about the rotation shafts 5 and 6, and air blows as shown in FIG. The direction can be changed.

  FIG. 7 is a perspective view of the rotation preventing member according to the first embodiment of the blower of the present invention. FIG. 8 is a cross-sectional view seen from the front showing a state where the rotation preventing member of FIG. 7 is attached to the blower and the drive motor is not rotated by an external force. FIG. 9 is a cross-sectional view showing a state where the rotation preventing member is removed from the blower and the wiring work is finished.

  As shown in FIG. 7, the anti-rotation member 8 is manufactured by bending a sheet metal material, and is provided with a rotation restricting portion 8a extending at a right angle from both ends of the center portion, and a central portion on the opposite side of the rotation restricting portion 8a. The terminal block shielding wall portion 8b is bent at a right angle to the mounting foot 2 and is detachably fixed to the mounting foot 2 by fastening bolts (not shown) penetrating through the fastening holes 8c, 8c provided in the center portion.

  As described above, when the rotation preventing member 8 is attached to the blower, as shown in FIG. 8, the rotation restricting portion 8a of the rotation preventing member 8 is formed on the side surface of the main body 1 (side surface on the drive motor 7 side). It is inserted into the engaging recess 9. In this state, the rotation restricting portion 8a engages both the mounting foot 2 and the main body 1, and restricts relative movement between the two. As a result, the main body 1 is prevented from rotating and no external force acts on the drive motor 7. Instead of the engaging recess 9, the outer shell of the main body 1 may be engaged to prevent rotation due to an external force.

  The mounting leg 2 is provided with a terminal block 10 to which the power supply wiring 12 is connected. When the rotation preventing member 8 is fixed to the mounting foot 2 as described above, the terminal block shielding wall portion 8 b of the rotation preventing member 8 covers the terminal block 10. In this state, since the connection port 11 of the terminal block 10 and the terminal block shielding wall 8b are arranged facing each other, the wiring work to the connection port 11 cannot be performed.

  If the anti-rotation member 8 is not removed, the power supply wiring work cannot be performed, so that the forgetting to remove the anti-rotation member 8 does not occur. Further, even if the rotation prevention member 8 is mistakenly attached to the air blower again after the wiring work of the power supply is completed, the power supply wiring 12 is connected to the connection port 11 of the terminal block 10 as shown in FIG. Since the terminal block shielding wall 8b and the power supply wiring 12 interfere with each other, the mounting is impossible. As a result, power is supplied to the drive motor 7 with the anti-rotation member 8 mounted, and the drive motor 7 is not damaged due to rotation.

Embodiment 2. FIG.
FIG. 10: is a perspective view of the terminal block cover which is a rotation prevention member of Embodiment 2 of the air blower of this invention. FIG. 11 is a cross-sectional view showing a state where the terminal block cover of FIG. 10 is attached to the blower and the drive motor is not rotated by an external force. FIG. 12 is a cross-sectional view showing a state in which the terminal block cover of FIG. FIG. 13 is a cross-sectional view showing a state in which the fall prevention claw has acted to prevent the terminal block cover from being dropped.

  In the rotation preventing member of the present embodiment, the terminal block cover 13 covering the entire terminal block 10 is functionally combined to protect the terminal block 10. As shown in the perspective view of FIG. 10, the terminal block cover 13 has a rectangular parallelepiped box shape that is open on only one surface, and is provided with a rotation restricting portion 13 a that protrudes by extending both end portions on one side surface adjacent to the opening surface. A power supply wiring lead-out opening 13b that is opened on the surface facing the rotation restricting portion 13a is provided.

  The terminal block cover 13 is attached to the preparatory posture to be attached as a rotation preventing member to be attached to the blower in the pre-operation state including conveyance, and to the blower that is installed on the installation surface 90 and actually operates. As shown in FIG.

  In the preparation posture as shown in FIG. 11, when the terminal block cover 13 is fixed to the mounting foot 2, the rotation restricting portion 13 a of the terminal block cover 13 engages with the outline of the main body 1, thereby rotating by the external force of the main body 1. It is the structure which can prevent.

  When the terminal block cover 13 is reattached after the power supply wiring work is completed, the wiring prevention plate in which the power supply wiring lead-out opening 13b of the terminal block cover 13 is provided in the mounting foot 2 when the terminal block cover 13 is attached in the preparation posture. 14, the power supply wiring 12 cannot be taken out from the power supply wiring extraction opening 13 b of the terminal block cover 13. After completion of the power supply wiring work, the power supply wiring 12 can be taken out from the power supply wiring lead-out opening 13b by attaching the terminal block cover 13 with the orientation changed by 180 ° as shown in FIG. It becomes. As described above, since the power cannot be supplied to the drive motor 7 while the rotation of the main body 1 is suppressed, the drive motor 7 is not erroneously operated and damaged.

  By providing the terminal block cover 13 with the function of the rotation restricting portion 13a as in the present embodiment, it is not necessary to provide special parts as in the first embodiment. Other configurations are the same as those of the first embodiment.

  As shown in FIG. 10, the terminal block cover 13 of the present embodiment has a drop prevention claw 13c formed by bending from the tip of the rotation restricting portion 13a. To prevent the terminal block cover 13 from dropping by the fall-preventing claw 13c being caught on the mounting foot 2 as shown in FIG. Can do.

  As described above, the blower according to the present invention is useful when applied to a blower capable of changing the blowing direction by allowing the main body to be rotated by the drive motor incorporated in the main body.

1 Body 2 Mounting feet 3 Mounting feet (sub-mounting feet)
4 Nozzle 5 Rotating shaft 6 Rotating shaft (Sub rotating shaft)
7 drive motor 7a output shaft 8 rotation prevention member 8a rotation restricting portion 8b terminal block shielding wall portion 8c fastening hole 9 engaging recess 10 terminal block 11 connection port 12 power supply wiring 13 terminal block cover 13a rotation restricting portion 13b opening for power supply wiring drawing Part 13c Drop prevention claw 14 Wiring prevention plate 90 Installation surface

Claims (6)

A blower that is rotatably mounted on the installation surface such as the ceiling so that the direction of the wind is variable.
A rotating shaft and a sub-rotating shaft that are rotatably supported by bearings provided at both ends of the main body and pass through the main body,
A drive motor fixed inside the body and having a drive shaft directly connected to the rotary shaft;
A mounting foot having one end fixed to the rotating shaft and the other end fixed to the installation surface;
A sub-mounting foot having one end fixed to the sub-rotating shaft and the other end fixed to the installation surface;
A terminal block provided on the mounting foot;
A rotation restricting portion that engages with the mounting foot and the main body to restrict rotation of the main body with respect to the mounting foot, and a terminal block shielding wall portion that covers the terminal block, so that the terminal block is exposed. When the position is changed, the rotation restricting portion is disengaged, and the rotation preventing member that allows the main body to rotate with respect to the attachment foot,
The air blower characterized by comprising. A blower that is rotatably mounted on the installation surface such as the ceiling so that the direction of the wind is variable.
A drive motor fixed inside the body;
A rotary shaft that is directly connected to the drive shaft of the drive motor and protrudes from an end of the main body;
A mounting foot having one end fixed to the rotating shaft and the other end fixed to the installation surface;
A terminal block provided on the mounting foot;
A rotation restricting portion that engages with the mounting foot and the main body to restrict rotation of the main body with respect to the mounting foot, and a terminal block shielding wall portion that covers the terminal block, so that the terminal block is exposed. When the position is changed, the rotation restricting portion is disengaged, and the rotation preventing member that allows the main body to rotate with respect to the attachment foot,
The air blower characterized by comprising. The blower according to claim 1 or 2, wherein the rotation preventing member is detachably attached to the attachment foot and the main body. The blower according to any one of claims 1 to 3, wherein the rotation preventing member also serves as a terminal block cover. The said rotation prevention member has two attachment attitude | positions of the attitude | position at the time of preparation which functions as a rotation prevention member, and the attitude | position at the time of operation which functions as a terminal block cover. Blower. The blower according to claim 5, wherein the rotation prevention member has a fall prevention claw that engages with the attachment foot to prevent the fall when the rotation prevention member is attached in the preparation posture.

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