JP2016098703A - Blower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To acquire a blower suppresses water infiltrating into a contact point part of a connection terminal provided on a ceiling side of an outer case.SOLUTION: A blower includes: an outer case 1 in which a suction port and a blowout port are formed; a mounting plate 3 disposed on a side part of the outer case 1 and for supporting the outer case from a ceiling surface or a wall surface; an electric motor stored in the outer case 1 and for driving an impeller for blowing air from the suction port to the blowout port; and a terminal block 11 having an inclined surface 11a which has height from the ceiling of the outer case 1 and which is inclined with respect to the ceiling surface of the outer case 1, and a quick connecting terminal 10 which includes an insertion port 10a for connecting a power source line 12 for supplying power to the electric motor and which is installed on the inclined surface 11a. The quick connecting terminal 10 is installed by directing the insertion port 10a to the side of the inclined surface 11a on which the height from the ceiling of the outer case 1 is smaller.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a blower installed on an indoor ceiling surface or wall surface.

  Many equipment such as air conditioners or ventilation fans are provided with a terminal block to which a power line is connected. As an example of equipment having a terminal block, there is a bathroom ventilation dryer with a terminal block on the top of the outer box (Patent Document 1). In addition, there may be a structure in which the terminal block is not provided and the connection terminal is directly fixed to the top surface of the outer box.

JP 2009-275940 A

  According to the above conventional technique, the connection terminal is directly fixed to the top surface of the outer box, or the terminal block is provided on the top surface. For this reason, there has been a problem that water accumulated on the top surface of the outer box due to rain leakage or condensation may enter the contact portion of the connection terminal and cause a short circuit.

  This invention is made | formed in view of the above, Comprising: It aims at obtaining the air blower which suppressed that water permeates into the contact part of the connecting terminal provided in the top | upper surface side of the outer box.

  In order to solve the above-described problems and achieve the object, the present invention supports an outer box formed on the side of the outer box and a ceiling surface or a wall surface formed with an inlet and an outlet. Mounting plate, an electric motor that drives a blade that is housed in the outer box and blows air from the suction port to the outlet, and an inclined surface that has a height from the top surface of the outer box and is inclined with respect to the top surface of the outer box And a terminal block having an insertion port for connecting a power supply line for supplying electric power to the electric motor, and a connection terminal installed on the inclined surface, the connection terminal from the top surface of the outer box of the inclined surface It is characterized in that it is installed with the insertion port facing the side with a small height.

  ADVANTAGE OF THE INVENTION According to this invention, there exists an effect that it can suppress that water permeates into the contact part of the connecting terminal provided in the top | upper surface side of the outer case.

The perspective view of the air blower concerning Embodiment 1 of this invention. Front view of the blower according to the first embodiment The rear view of the air blower concerning Embodiment 1. The figure which shows the fixed state of the mounting plate of the air blower concerning Embodiment 1. FIG. The figure which looked at the terminal part of the air blower concerning Embodiment 1 through the cover The figure which shows the state which looked at the terminal part of the air blower concerning Embodiment 1 from the side. The figure which shows a mode that a power wire is connected to the quick connection terminal of the air blower concerning Embodiment 1. FIG. The perspective view which shows a mode that a cover is fixed to the terminal block of the air blower concerning Embodiment 1. FIG. The top view which shows a mode that a cover is fixed to the terminal block of the air blower concerning Embodiment 1. FIG. The perspective view of the terminal block of the air blower concerning Embodiment 2 of this invention.

  Below, the blower concerning an embodiment of the invention is explained in detail based on a drawing. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a perspective view of the blower according to the first embodiment of the present invention. FIG. 2 is a front view of the blower according to the first embodiment. FIG. 3 is a rear view of the blower according to the first embodiment. The blower 100 includes an outer box 1 that constitutes an outer shell. A blower outlet 2 is formed on the front surface of the outer box 1, and a suction port 5 is formed on the rear surface of the outer box 1. The blower outlet 2 is formed in two upper and lower stages, and air is blown out from the upper stage 2A and the lower stage 2B of the blower outlet 2 as indicated by an arrow A in FIG. The outer box 1 is installed so as to be suspended from the ceiling by mounting plates 3 attached to both ends. Note that the blower 100 may be installed on a wall surface instead of the ceiling.

  The blower 100 includes a blade 6 that is housed in the outer box 1 and blows air from the suction port 5 to the blowout port 2, an electric motor 7 that drives the blade 6, and a terminal block 11 that will be described later.

  In the first embodiment, a pair of mounting plates 3 installed downward on a ceiling surface (not shown) pivotally supports both end portions of the outer box 1 in a rotatable manner. For this reason, the air blower 100 can change a wind direction by rotating the outer case 1, as shown by the arrow B in FIG.

  FIG. 4 is a diagram illustrating a fixed state of the mounting plate of the blower according to the first embodiment. The mounting plate 3 rotatably supports the outer box 1, and the support bolt 8 is screwed to the side surface of the outer box 1 through a through hole 3 c provided in the main body 3 a, so that the direction of the outer box 1 is increased. Is fixed. A plurality of angle adjustment holes 3b are formed on the arc in the main body 3a. The angle adjustment holes 3b may be provided at an equally spaced angular pitch or may be provided at an unevenly spaced angular pitch. For example, by providing the angle adjustment holes 3b at a pitch of 11.25 °, 32 angle adjustment holes 3b can be formed on the arc. The blower 100 can be installed by changing the direction in which the air outlet 2 faces by stopping the angle adjusting bolt 9 in the angle adjusting hole 3b.

  FIG. 5 is a view of the terminal block of the blower according to the first embodiment as seen through the cover. FIG. 6 is a diagram illustrating a state in which the terminal block of the blower according to the first embodiment is viewed from the side. The terminal block 11 includes a quick connection terminal 10 that electrically connects a power line 12 that supplies power to the electric motor 7 to the electric motor 7. The terminal block 11 has a gap between the top surface of the outer box 1 and an inclined surface 11 a that is inclined with respect to the top surface of the outer box 1. A leg portion 11c is formed on the upper end side of the inclined surface 11a, and a leg portion 11d is formed on the lower end side of the inclined surface 11a. The quick connection terminal 10 includes an insertion port 10 a that connects a power line 12 that supplies power to the electric motor 7 to the electric motor 7.

  The inclined surface 11a is inclined so that the front of the outer box 1 is low and the rear is high. That is, the gap between the inclined surface 11 a and the top surface of the outer box 1 is smaller toward the insertion port 10 a side of the power connection line of the quick connection terminal 10. The quick connection terminal 10 is in a state of floating with respect to the top surface of the outer box 1. That is, the height of the inclined surface 11a from the top surface of the outer box 1 is lower toward the insertion port 10a side of the power line of the quick connection terminal 10 which is the connection terminal. The inclined surface 11a is inclined with respect to the top surface of the outer case 1 by the height of the leg portion 11c being different from the height of the leg portion 11d. The quick connection terminal 10 is installed with the insertion port 10a facing the front surface of the outer box 1 that has a smaller height from the top surface of the inclined surface 11a.

  Thus, the terminal block 11 has a height from the top surface of the outer box 1, and includes an inclined surface 11 a that is inclined with respect to the top surface of the outer box 1, and a power supply line 12 that supplies power to the motor 7. And a quick connection terminal 10 having an insertion port 10a connected to the electric motor 7.

  The quick connection terminal 10 that is a connection terminal sandwiches and holds the power line 12 inserted into the insertion port 10 a that is a contact portion, and is electrically connected to the electric motor 7. The terminal block 11 is positioned on the top surface of the outer box 1 with claws (not shown), and is fixed to the top surface of the outer box 1 with screws (not shown). The method for fixing the terminal block 11 to the top surface of the outer box 1 may be other methods. As an example, the terminal block 11 may be welded to the top surface of the outer box 1. The quick connection terminal 10 is installed on the inclined surface 11a in a state where the insertion opening 10a side of the power supply line is lowered.

  The terminal block 11 is provided with a pair of guides 11b for the purpose of improving the assembly of the cover 4.

  FIG. 7 is a diagram illustrating a state in which the power supply line is connected to the quick connection terminal of the blower according to the first embodiment. By inserting the power line 12 into the insertion port 10a from the direction indicated by the arrow C in FIG. The quick connection terminal 10 includes a release button 10b that is operated by pressing in the same direction as the insertion direction of the power line 12 indicated by an arrow C in FIG. When the release button 10b is pressed, the power line 12 sandwiched between the quick connection terminals 10 is released, and the power line 12 can be removed from the power line insertion port 10a.

  FIG. 8 is a perspective view illustrating a state in which the cover is fixed to the terminal block of the blower according to the first embodiment. FIG. 9 is a top view showing a state in which the cover is fixed to the terminal block of the blower according to the first embodiment. The cover 4 is inserted between the pair of guides 11b from the same direction as the direction in which the power line 12 is inserted into the power line insertion slot 10a, and the surface of the cover 4 on the insertion side of the power line 12 is screwed to the screw fastening surface 11e. It is fixed by doing. An arrow D in FIG. 8 and an arrow E in FIG. 9 indicate the direction in which the cover 4 is inserted between the pair of guides 11b.

  When it is difficult to work near the ceiling, if the guide 11b is not provided, the insertion direction of the cover 4 is not fixed, and the cover 4 comes into contact with the step of the terminal block 11 or the quick connection terminal 10, and the assemblability is poor. By providing the guide 11b on the terminal block 11, the cover 4 can be pushed straight in, and workability is improved.

  In addition, when the cover 4 is inserted into the terminal block 4 by mistake, the cover 4 is inserted over the cover 4 and the screw fastening surface 11e of the terminal block 11 and inserted into the quick connection terminal 10 side. Interfering with each other so that they cannot be assembled.

  In the above description, the connection terminal is the quick connection terminal 10, but the connection terminal may not be the quick connection terminal. As an example, it is also possible to use a connection terminal of a type in which a wire portion of the power supply line 12 is sandwiched between metal plates and fixed with a screw.

  Thus, in the blower 100 according to the first embodiment, since the inclined surface 11a on which the quick connection terminal 10 is installed has a height from the top surface of the outer case 1, the top surface of the outer case 1 due to rain leakage or dew condensation. It is possible to prevent the water accumulated in the water from entering the contact portion of the quick connection terminal 10. Moreover, since the inclined surface 11a has an inclination with respect to the top surface of the outer case 1, even if a water droplet adheres to the terminal block 11, the terminal 11 before the puddle that affects the contact portion of the quick connection terminal 10 is formed. A water droplet can be dropped from the terminal block 11 by gravity by the inclined surface portion 11a of the table 11, and a short circuit can be prevented. Therefore, it can suppress that water permeates into the insertion port 10a of the power wire of the quick connection terminal 10 provided on the top surface side of the outer box 1.

  Furthermore, when the blower 100 according to the first embodiment needs to be connected to the power supply line 12 after being installed on the ceiling surface, the terminal 100 is designed such that the height of the terminal block 11 from the top surface of the outer box 1 is increased. By selecting the base 11 and installing it on the ceiling surface so that the top surface of the outer box 1 and the angle of the inclined portion 11a become large, a quick connection terminal can be used when connecting the power line 12 while looking up the blower 100 from below. The visibility of the insertion opening 10a of the power supply line 10 can be improved, the direction in which the blower 100 is looked up can be matched with the direction in which the power supply line 12 is inserted, and workability is improved. Occurrence can be prevented.

  Moreover, the connection workability | operativity of the power wire 12 improves by using the quick connection terminal 10 for a connection terminal. In addition, covering the quick connection terminal 10 with the cover 4 has an effect of preventing dust or water from entering the contact portion and preventing fire spread, and further, the pressing direction of the release button 10b of the quick connection terminal 10 and the insertion of the cover 4 In addition, by making the fixing direction and the insertion direction of the power line 12 to the quick connection terminal 10 the same, the work between the quick connection terminal 10 or the cover 4 and the ceiling surface when connecting or removing the power line 12 Workability is not impaired even when the space is small. Further, the guide 11b provided on the terminal block 11 guides the cover 4 when the cover is assembled, and also interferes with the cover 4 when the cover 4 is mistakenly attached.

  In addition, when the work space between the quick connection terminal 10 or the cover 4 and the ceiling is narrow due to the installation location of the blower 100 and the connection work of the power line 12 is difficult, the outer box 1 is rotated. The position of the terminal block 11 installed on the top surface of the outer box 1 can be changed, and workability can be improved.

Embodiment 2. FIG.
FIG. 10 is a perspective view of the terminal block of the blower according to the second embodiment of the present invention. In the blower 110 according to the second embodiment, the leg portions 11c and 11d of the terminal block 11 are not the upper end side and the lower end side of the inclined surface 11a but the upper end side and the lower end side. Is provided. As for leg part 11c, 11d, the upper side inclines with respect to the attachment surface. About this other point, it is the same as that of the air blower 100 concerning Embodiment 1. FIG.

  In the blower 110, the surfaces of the leg portions 11 c and 11 d are parallel to the rotating surface of the outer box 1. Therefore, even if the outer box 1 is rotated and the blower 110 is installed with the top surface of the outer box 1 tilted, the water droplets adhering to the top surface of the outer box 1 travel along the terminal block 11 and the quick connection terminal. It does not enter 10 contact portions.

  As described above, when the blower 110 according to the second embodiment is installed in a state where the top surface of the outer box 1 is inclined, the blower 110 according to the second embodiment has a gap between the inclined surface 11 a of the terminal block 11 and the top surface of the outer box 1. Can pass water drops. Therefore, it is possible to prevent water droplets adhering to the top surface of the outer box 1 from reaching the slope portion 11a where the quick connection terminal 10 is installed through the leg portions 11c and 11d of the terminal block 11.

  The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

  DESCRIPTION OF SYMBOLS 1 Outer box, 2 blower outlet, 2A upper stage, 2B lower stage, 3 mounting plate, 3a main-body part, 3b angle adjustment hole, 3c through-hole, 4 cover, 5 suction inlet, 6 blades, 7 motor, 8 support bolt, 9 angle Adjustment bolt, 10 speed connection terminal, 10a power line insertion port, 10b release button, 11 terminal block, 11a inclined surface, 11b guide, 11c, 11d legs, 11e screw fastening surface, 12 power line, 100, 110 Blower.

Claims (9)

An outer box formed with a suction port and a blowout port;
A mounting plate disposed on a side of the outer box and supporting the outer box from a ceiling surface or a wall surface;
An electric motor that drives a blade that is housed in the outer box and blows air from the inlet to the outlet;
An inclined surface having a height from the top surface of the outer box and inclined with respect to the top surface of the outer box, and an insertion port for connecting a power line for supplying electric power to the electric motor. And a terminal block having a connection terminal installed on the top,
The blower characterized in that the connection terminal is installed with the insertion port facing the side where the height of the inclined surface from the top surface of the outer box is small.   The blower according to claim 1, wherein a height of the inclined surface from the top surface of the outer box is lower toward an insertion port side of the power supply line of the connection terminal.   3. A leg portion for supporting the inclined surface on the top surface of the outer box, and a gap is formed between the inclined surface and the top surface of the outer box. The blower described in.   The blower according to claim 3, wherein the leg portion is provided on two sides sandwiching an upper end side and a lower end side of the inclined surface.   The blower according to any one of claims 1 to 4, wherein the connection terminal is a quick-connection terminal that holds the power supply wire inserted into the insertion port.   The quick connection terminal includes a release button for releasing the inserted power line, and the release button is actuated when pressed in a direction of inserting the power line into the insertion port. 5. The blower according to 5. A cover for covering the connection terminal;
The mounting direction of the cover to the terminal block and the screwing direction of a screw for fixing the cover to the terminal block are the same as the direction of inserting the power line into the insertion port. The blower of any one of 6 to 6.   The blower according to claim 7, wherein the terminal block includes a guide that guides the cover in a direction in which the power supply line is inserted into the insertion port.   The blower according to any one of claims 1 to 8, wherein the mounting plate supports the outer box so as to be rotatable in a vertical direction.

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