TWI516730B - Blower - Google Patents

Description

Blower

The present invention relates to a blower that is placed at a high place in a room.

For example, in a ventilating fan for a duct, an electric motor and a fan driven by an electric motor are provided in an outer casing that is opened at the lower surface and is disposed in an insertion state of the ceiling in an inserted state, and The article of the plastic fan case is disposed around the fan, and the outer peripheral portion of the fan case and the electronic component housing portion having the opening at the lower surface are integrally formed, and the wire connecting the motor is connected to the power cord. The connection terminal of the connection portion is housed in the state in which the connection portion faces the opening portion, and the cover that opens and closes the lower opening portion is rotatably connected to the electronic component storage portion. In this cover, a configuration in which the opening of the electronic component housing portion is blocked from the lower side and the convex portion of the connection terminal is provided in the open state of the cover is known.

According to this configuration, the connection and removal of the power supply line to the connection terminal can be performed from the indoor side, and the workability is improved. In addition, by providing the convex portion inside the cover that opens and closes the opening of the electronic component housing portion, even if the cover is opened and the connection terminal does not fall off, the operations of connecting, removing, and inserting the power cord can be further facilitated. Conducted. Also, because the connection terminals are by convex Since the portion is restricted and is not pulled out to a predetermined value or more, the excessive tension is not applied to the wire of the motor to which the connection terminal is connected, and the problem of disconnection or the like can be reduced (for example, refer to Patent Document 1).

[First technical literature] [Patent Literature]

Patent Document 1: Japanese Registration Utility New Case No. 25380003

According to the above-described conventional technique, the attachment and detachment of the power cord to the connection terminal can be performed from the indoor side via the lower opening of the outer casing. However, since the connection terminal is inside the opening and the hand is hard to enter, workability is poor and improvement is desired. Further, according to the above-described conventional technique, there is a risk that the connection terminal can freely fall by its own weight, and when the power supply line of the connection terminal is connected, the connection terminal is not fixed, so the power supply line is inserted into the power supply terminal. In the case where the connection terminal is retracted to the back side, there is a problem that the connection of the so-called power supply line is difficult. As described above, if the electrical contact of the power supply line is insufficient, it becomes a safety problem, and further causes a fire, and it is desired to improve the system. In addition, when the VVF cable is used as the power supply line, the built-in copper wire is thick and hard, and when the power supply is connected and bent sharply, there is a problem that the contact is poor due to breakage.

In view of the above, it is an object of the present invention to provide a blower that can facilitate the installation work of the power supply line for the connection terminal and that is sufficient for fire safety measures.

In order to solve the above-mentioned problems and achieve the object, the air blower system according to the first aspect of the invention includes an outer casing in which a suction port and an air outlet are formed, a blade that is housed in the outer casing, and that blows air from the suction port toward the air outlet, and a motor that drives the blades. a terminal block that supplies power to a connection terminal to which the power supply line of the motor is electrically connected to the motor, and a sliding pedestal that slidably supports the terminal block in such a manner that the connection terminal is formed from the access opening formed in the outer case; wherein the terminal block The sliding work position between the connection terminal and the power supply line is slid between the connection work position where the connection opening occurs and the storage position where the connection terminal is housed in the outer case.

Moreover, the blower system according to the second aspect of the invention includes an outer casing in which the suction port and the air outlet are formed, a side plate disposed on the side of the outer casing, and a mounting plate that supports the outer casing from the ceiling surface or the wall surface, and is housed in the outer casing. The blade that blows air from the suction port toward the air outlet and the motor that drives the blade have a quick-connect terminal that is connected to the power supply line by inserting the power supply line into the insertion port provided at the connection place, and is supplied with power via the quick-connect terminal. To the terminal block of the motor, the terminal block is slidably supported by the sliding pedestal of the insertion direction of the power cord in such a manner that the quick-connect terminal is formed from the access opening formed in the outer casing, and the mounting plate is covered and the side of the outer casing is a side cover of the power cord that is pulled back; wherein the terminal block slides between the connection working position where the quick junction terminal and the power cord are connected from the access opening, and the storage position where the quick junction terminal is housed in the outer box; When the terminal block is connected to the working position, the stopper is engaged with the terminal block, and the stopper for preventing the terminal block from retreating to the storage position side is provided.

Moreover, the blower system of the third aspect of the invention includes an outer casing in which the suction port and the air outlet are formed, a side plate disposed on the side of the outer casing, and a mounting plate that supports the outer casing from the ceiling surface or the wall surface, and is housed in the outer casing. Leaf that blows air from the suction port toward the air outlet The sheet and the motor for driving the blade have a quick junction terminal that is connected by a power supply line by inserting a power supply line into an insertion port provided at a connection place, and a power supply line is supplied to the terminal block via the quick junction terminal. a flash pedestal that slidably supports the terminal block in a direction in which the power cord is inserted, and a side that covers the mounting board and the power cord that is pulled back at the side of the outer box, from the outlet opening formed in the outer box a sliding cover surface of the sliding pedestal in which the terminal block slides is inclined to a side surface of the outer box in which the opening and closing opening is formed; and a terminal station is a connection working position from the access opening at a connection place of the quick junction terminal and the power supply line, The quick-connect terminal is slid between the storage positions accommodated in the outer casing; the terminal block is engaged with the terminal block when the working position is connected, and the stopper for preventing the terminal block from retreating to the storage position side is provided.

Further, the air blower of the fourth aspect of the present invention has an outer casing including a suction port and an air outlet, and a fan that is housed in the outer casing and that blows air from the suction port toward the air outlet, and a fan that drives the fan. The fan and the motor respectively have a plurality of first fan units and a second fan unit, wherein the first fan unit and the second fan unit are engaged with the engaged portions of the separation restricting members The separation is restricted, and the screws that are held between the two are locked together in the outer box.

According to the first aspect of the present invention, since the terminal block is ejected from the entrance and exit opening formed on the side surface of the outer casing, the power supply line is pulled out to the connection work position, the workability is improved, and after the connection is completed, the storage is completed. In the storage position, the effect of ensuring adequate fire safety measures is achieved.

Further, according to the second invention, in the first aspect of the invention In addition, the connection terminal further fastens the terminal, and the sliding pedestal slidably supports the insertion direction of the power cord, and the terminal block is engaged with the terminal block when the working position is connected, and the terminal block is prevented from retreating to the storage position side. Since the device is installed, even if the cable with high rigidity like a VVF cable is inserted into the quick-connect terminal, the quick-connect terminal does not retreat, and the power cable can be connected well.

Further, according to the third aspect of the invention, in addition to the second aspect of the invention, the sliding surface of the sliding pedestal on which the terminal block slides is inclined to the side surface of the outer casing in which the opening and closing opening is formed, so that the miniaturization of the apparatus is achieved. It also reduces the angle at which the power cord must bend.

Further, according to the fourth aspect of the present invention, a conventional fan and a group of motors are used as one fan unit, and a complex array is used as a fan unit, and is further locked by a screw held between the two. The box can cut the number of screws necessary.

1‧‧‧Outer box

1a‧‧‧ side

1b‧‧‧ access openings

2‧‧‧Blowing out

3‧‧‧Inhalation

4‧‧‧Fan

5‧‧‧Electric motor

7‧‧‧Installation board

7a‧‧‧ Body Department

7b‧‧‧Locking Department

7c‧‧‧ Angle adjustment hole

7d‧‧‧ snap hole (fitting structure)

8‧‧‧ side cover

8a‧‧‧Snap projections (fitting structure)

8b‧‧‧Insert guide (guide structure)

9‧‧‧ Ceiling surface

10‧‧‧Speed junction terminal (connection terminal)

10a‧‧‧ insertion port

11‧‧‧ Terminal Block

11a‧‧‧Hands

11b‧‧‧立起部

12‧‧‧Support bolts

14‧‧‧Angle adjustment bolt

15‧‧‧ hanging bolts

16‧‧‧ Nuts

17‧‧‧Power cord

17a‧‧‧Wire

17b‧‧‧covered

17c‧‧‧ main face

18‧‧‧Terminal cover

18a‧‧‧Central hole

19‧‧‧Induction rod (wire position determining member)

20‧‧‧Tensile suppression department

20a‧‧‧Support surface

21‧‧‧Clamp

24‧‧‧Sliding pedestal

24a‧‧‧Sliding surface

24b‧‧ fulcrum

24c‧‧ Section (stopping)

25a, 25b, 25c, 25d‧‧‧ screws

26‧‧‧Induction hook (wire position determining member)

29‧‧‧ Magnet

31‧‧ ‧Print

33‧‧‧through holes

34‧‧‧ long hole

35‧‧‧Snap hole

36, 36A, 36B‧‧‧ orifice components

36a‧‧‧ against the top wall

37‧‧‧Air guiding members

37a‧‧‧ Wind Road Wall

38‧‧‧ protective cover

40, 40A, 40B‧‧‧ fan unit

41‧‧‧Snap hole

42‧‧‧ female screw hole

43‧‧‧Clamping convex

45‧‧‧Card claws

46A, 46B‧‧

47A, 47B‧‧‧ split screw holes

100‧‧‧Air blower

1 is a perspective view showing an embodiment of a blower according to the present invention; FIG. 2 is a front view seen from a blower side of the blower; and FIG. 3 is a front view seen from a suction port side of the blower; Figure 4 is an exploded perspective view of the blower; Figure 5 is a view of the end of the blower through the side cover; Figure 6 is the same part as the fifth through the side cover from the side Figure 7 is a perspective view of the end of the blower with the side cover removed; Figure 8 is a view showing the construction of the power cord and the three divided ends. Fig. 9 is a front view of the terminal block as seen from the access opening formed on the side of the outer casing; Fig. 10 is a perspective view showing the appearance of the terminal block in the opening and closing; Fig. 11 is FIG. 12 is a cross-sectional view showing a state in which the terminal block is pulled out at a connection working position; FIG. 12 is a cross-sectional view showing a state in which the terminal block is at a storage position; and FIG. 13 is a perspective view showing the side cover from the back side; Fig. 14 is a perspective view showing a state in which the fan unit is assembled to the outer casing; Fig. 15 is a schematic view showing the position of the screw whose number of screws is reduced by the present embodiment; and Fig. 16 is a view for comparison And a schematic diagram showing the screw position of the screw used by the conventional fan unit; Fig. 17 is a view showing that in the G position in the figure of Fig. 14, the adjacent two fan units are locked together by one screw. A schematic view of the appearance; Fig. 18 is only a perspective view of the first orifice member and the second orifice member in Fig. 17; and Fig. 19 is an enlarged view of the end of the fan unit shown in Fig. 14. And the perspective view shown.

Hereinafter, an embodiment of the air blower relating to the present invention will be described in detail based on the drawings. Further, the present invention is not limited to the embodiment.

[First Embodiment]

Figure 1 is a perspective view of an embodiment of a blower of the present invention. Fig. 2 is a front view as seen from the blower side of the blower, and Fig. 3 is a front view as seen from the suction port side of the blower. The blower 100 is an outer box 1 having a vertically long cube-shaped casing constituting a casing. The air outlet 2 and the suction port 3 are formed on opposite sides of the outer casing 1. The lower two sections of the outlet 2 are formed, and as shown by the arrow A in Fig. 1, air is blown out therefrom. The outer case 1 is provided by being attached to the mounting plate 7 at both ends, for example, from the ceiling. In the present embodiment, a pair of mounting plates 7 that are erected downward on a ceiling surface (not shown) are axially supported by both end portions of the outer casing 1 so as to be rotatable in the first embodiment. As indicated by the arrow B, the outer box 1 is rotated and the wind direction is changed. The mounting plate 7 is covered by the side plate cover 8. Further, the blower 100 is not limited to the ceiling surface, and may be provided on a vertical wall surface or the like.

Fig. 4 is an exploded perspective view of the blower. In the outer casing 1, an air passage forming member, an orifice member 36, and an air guiding member 37 are housed. The orifice member 36 and the air guiding member 37 form an air passage from the suction port 3 to the outlet port 2 in the outer casing 1 . In the air guiding member 37, the air passage is divided into two upper and lower portions, and the air passage system is formed in parallel in the longitudinal direction of the outer casing 1 to form eight. A fan 4 that moves air from the suction port 3 toward the air outlet 2 and an electric motor 5 that drives the fan 4 are disposed corresponding to the individual air passages. The orifice member 36 and the air guiding member 37 of the air passage forming member are divided into two groups of the fan 4 and the motor 5 as a unit. That is, the fan 4 and the motor 5 of the two groups, and the aperture member 36 and the air guiding member 37 corresponding thereto are configured to constitute one fan unit 40. Moreover, in the outer casing 1, four fan units 40 are accommodated in parallel in the longitudinal direction.

On the suction side of the four fan units 40 juxtaposed in the longitudinal direction, As a purpose of protecting the fan 4, a shield 38 is provided which is a continuous one piece member. Further, the support bolt 12 that becomes the center of the rotary shaft when the mounting plate 7 is supported is erected on the side surface 1a of the outer casing 1. At both ends in the longitudinal direction of the outer casing 1, a mounting plate 7 having a substantially L-shaped cross section and a side cover 8 covering the mounting plate 7 are provided. The side cover 8 has a size of 80 to 150 mm and a thickness of 10 to 70 mm.

Fig. 5 is a view showing the end portion of the blower through the side cover 8, and Fig. 6 is a view showing the same portion as that of Fig. 5 seen from the side through the side cover 8. Fig. 7 is a perspective view of the end portion of the blower with the side cover 8 removed, and Fig. 8 is a perspective view showing the structure of the power supply line and the appearance of the three divided ends. The mounting plate 7 is formed in a substantially L-shaped cross section, and is composed of a locking portion 7b along the ceiling surface 9 and a main body portion 7a that is bent at a right angle from the locking portion 7b and extends downward. In the mounting plate 7 of the present embodiment, the lock portion 7b is locked to the hanging bolt 15 extending from the ceiling surface 9 to the lower side by the nut 16, and is fixed to the ceiling surface 9.

The mounting plate 7 is configured such that the support bolt 12 passes through the through hole that is perforated at the lower end portion of the main body portion 7a, and the outer case 1 is rotatably supported in the axial direction. In the main body portion 7a, the plurality of angle adjusting holes 7c are perforated on the circular arc at a pitch of 11.25 degrees, and by selecting any one of the fixed angle adjusting bolts 14, the horizontal state shown in Fig. 5 can be The air outlet 2 is disposed at a position that is rotated 90 degrees toward the vertical downward direction and, conversely, an angle is changed between the positions where the air outlet 2 is only 22.5 degrees upward.

The power supply line 17 that supplies electric power to the electric motor 5 is inserted from the ceiling side and pulled back into the side cover 8, and then inserted into the outer casing 1. power cable The 17-series, three-core VVF cable as shown in Fig. 8, the three electric wires 17a are juxtaposed in the lateral direction to form a cross-sectional oblate shape covered by the covering 17b, and the rigidity is very high even in the plane including the main surface 17c. Bending (not bending the main surface 17c and bending it laterally) is difficult to bend in this direction. Therefore, the power supply line 17 is bent in a direction in which the main surface 17c is bent or curved in a direction close thereto. Further, in consideration of safety, in the case where the power supply line of the VVF cable is bent, the radius of the inner side of the bent portion is six times or more the outer diameter of the power supply line so that the power supply line is not broken, and the technical standard regarding the electric device is used. It is prescribed.

As shown in Fig. 7, the power cord 17 is inserted into the side cover 8 from the ceiling side, and after the hook 26 is induced, it extends downward along the side surface 1a of the outer casing 1, and the arc is directed downward. When the shape is greatly curved, it is temporarily floated off from the outer casing 1, and the tension suppressing portion 20 is reversed, and the contact rod 19 is contacted, and the direction is reversed while being twisted on the outer casing 1 side, and the terminal is fixed to the side surface 1a. The center hole 18a of the cover 18 extends to the inside of the outer box 1. A space in the outer case 1 inside the terminal block cover 18 and a terminal block (not shown) are housed, and the power supply line 17 is electrically connected to the wires of the motor 5 via the terminal block. Further, the terminal block cover 18 is fixed to the side surface 1a by the screw 25a, and is removed at the time of connection work to the terminal block of the power source line 17.

The tension suppressing portion 20 is, for example, an object in which the tension of the power cord 17 is stretched on the ceiling side without affecting the connection between the terminal block and the power supply line 17, and the support bolt 12 is locked together with the mounting plate 7. Tightly fixed, the power cord 17 is held by the clip 21 provided at the upper portion. The clip 21 is such that one end is engaged with the tension suppressing portion 20, and the other end is screwed by the screw 25b in the tension suppressing portion 20, and the power cord is held between the tension suppressing portion 20 and the tension suppressing portion 20. 17. The screw 25b is locked and the power cord 17 is strongly clamped. In the tension suppressing portion 20, the power source wire 17 is provided in the middle of being bent by the hook type, and the tension suppressing portion 20 supports the support surface 20a of the power source wire 17 by the wire clamp 21, and the power line 17 having an oblate cross section is easy. Tilt in the direction of the bend. In other words, in the present embodiment, the side surface 1a of the outer casing 1 is inclined by 15 degrees so as to rise outward in the direction of the curvature radius of the power source line 17 (Fig. 6).

The induction hook 26 and the induction rod 19 are used to correct the passage position of the power supply line 17 such that the side surface 1a of the outer casing 1 and the power supply line 17 are pulled away from the predetermined path without being largely separated. In other words, the induction hook 26 and the inducing lever 19 are connected to the side surface 1a of the outer casing 1 and are brought back to the power supply line 17 in a predetermined path to form a position determining member for correcting the position. In the two, in particular, the inducing rod 19 is a reaction force between the terminal block cover 18 and the tension suppressing portion 20 when the power supply wire 17 is bent. Without the induction lever 19, the power supply line 17 cannot be in a predetermined shape. Bending is an essential component in the construction of the present embodiment.

Fig. 9 is a front view showing a state in which the terminal block cover 18 is detached from the opening and closing opening formed in the side surface 1a of the outer casing 1, and the terminal block is seen. Fig. 10 is a view showing the appearance of the terminal block in the opening and closing opening. In the perspective view, Fig. 11 is a cross-sectional view showing a state in which the terminal block is pulled out at the connection working position, and Fig. 12 is a cross-sectional view showing a state in which the terminal block is at the storage position. The terminal block 11 is housed in the end space of the outer casing 1. The terminal block 11 is configured by a quick junction terminal (connection terminal) 10 mounted on the upper surface.

The quick junction terminal 10 is a three insertion port 10a into which three electric wires 17a of the power supply line 17 are inserted, respectively. The three insertion ports 10a are open to the surface of the opening and closing opening 1b at the quick junction terminal 10, and extend in a sliding direction to be described later. speed In the connection terminal 10, when the electric wire 17a is inserted from the insertion port 10a, an internal incorporation structure (not shown) is operated, whereby the electric wire 17a is held, and then the force is not pulled out even in the direction in which the electric wire 17a is pulled out. Construction.

The slide pedestal 24 is provided in the end space of the outer box 1. The terminal block 11 is placed on the sliding surface 24a formed on the slide base 24 to be slidable. In detail, the terminal block 11 is connected to the access opening 1b of the outer casing 1 so that a part of the insertion port 10a including the front side of the quick junction terminal 10 is present at the connection work position D (Fig. 11), The whole is slid between the storage position E (Fig. 12) accommodated in the outer casing 1. Further, the sliding surface 24a of the slide pedestal 24 is inclined with respect to the side wall of the outer casing 1 (the wall of the outer casing 1 forming the side surface 1a) in which the entrance opening 1b is formed. The inclination of the sliding surface 24a is inclined in a direction in which the angle at which the power supply line 17 has to be bent is small, and the magnitude of the inclination is a structure in which the terminal block 11 is housed in the outer casing 1, the operation of the terminal block 11, and the operation of the terminal block 11 and The connection work is convenient and becomes the most appropriate angle. In the case of the present embodiment, the inclination of the sliding surface 24a, for example, the case where the blower 100 is horizontally disposed, is inclined from the entrance opening 1b toward the back side and upwardly by about 30 degrees.

The terminal block 11 is produced by, for example, bending a flat plate member, and the quick junction terminal 10 is mounted on the main surface of the center portion. Moreover, the front side of the terminal block 11 in the sliding direction is divided into two, and the distal end portion is bent into a segment portion to be the handle portion 11a. Further, the rear side of the terminal block 11 in the sliding direction is formed so as to be bent beyond the height of the quick junction terminal 10, and the rising portion 11b is formed. Further, when the terminal block 11 is connected to the working position D, the terminal block 11 is engaged with the rising portion 11b of the terminal block 11, and the terminal block 11 is held at the segment portion (stopper) 24c of the connection working position D, and is provided at the quick junction terminal. Above the 10th.

At the time of power supply connection construction, the power source builder removes the terminal block cover 18, grasps the handle portion 11a, and pulls the terminal block 11 to the connection work position D. Next, at this position, when the grip portion 11a is pulled downward, the terminal block 11 is rotated around the fulcrum 24b. Further, the rising portion 11b is upward and is engaged with the segment (stopper) 24c to be held. Thereby, when the electric wire 17a is inserted into the quick junction terminal 10, the quick junction terminal 10 does not retreat, and the connection work of the power supply line 17 is performed favorably. When the connection work is completed, the handle portion 11a is pulled up to the upper side to be engaged with the segment portion 24c in the reverse order, and the terminal cover 18 is used as a cover by press-fitting at the storage position E. Further, in the present embodiment, the segment (stopper) 24c is provided above the quick junction terminal 10. However, the present invention is not limited thereto. For example, the inner side of the sliding surface 24a is formed as a segment, and the handle is formed by The portion 11a is pulled up to the upper end, and the rear end of the terminal block 11 may be engaged. Further, when the terminal block 11 is pulled out, the structure for preventing the entire terminal block 11 from being pulled out is realized by making the width of the portion behind the intermediate portion of the terminal block 11 larger than the width of the opening and exit opening 1b.

As described above, according to the air blower 100 of the present embodiment, the terminal block 11 is ejected from the access opening 1b formed on the side surface 1a of the outer casing 1, and is pulled out to the connection work position D when the power supply line 17 is connected, so that the operation is performed. The safety is good, and after the connection is completed, it is stored in the storage position E, and the fire safety measures can be sufficient. In addition, when the terminal block 11 is engaged with the terminal block 11 and is connected to the segment portion (stopper) 24c on the side of the storage position E when the terminal block 11 is connected to the work position D, the terminal block 11 has a large rigidity even like a VVF cable. When the cable is inserted into the quick junction terminal 10, the quick junction terminal 10 does not retreat, and the connection operation of the power supply line 17 can be performed satisfactorily. Further, since the handle portion 11a is provided on the front side of the sliding direction of the terminal block 11, It is easy to pull out the terminal block 11. Further, since the sliding surface 24a of the sliding pedestal 24 is inclined with respect to the side surface 1a of the outer casing 1 in which the opening and closing opening 1b is formed, the space required for the longitudinal direction in the outer casing 1 is reduced, and the size can be reduced. The angle at which the power cord 17 has to be bent becomes small.

A method of fixing the side cover 8 is described. Fig. 13 is a perspective view of the side cover 8 as seen from the back side. At both end portions of the outer casing 1, the side covers 8 are provided in consideration of design. The side cover 8 is inserted into the cylindrical insertion guide 8b that is erected on the lower inner portion, and the support bolt 12 (Fig. 5 and Fig. 6) that is erected on the outer casing 1 is inserted, and this is used as a guide to face outward. The case 1 is moved in parallel, and the elastic engagement projections 8a which are erected on the upper portion of the upper portion are press-fitted into the engagement holes 7d (Figs. 5 and 6) formed on the upper portion of the attachment plate 7, and are incorporated. Moreover, the mounting plate 7 is attached by being attached to the pair of magnets 29 provided on both sides in the lateral direction.

It is known that the design cover mounting method of a general machine is also proposed based on the object of the magnet. Since the cover is fixed by the suction force of the magnet, it is not necessary to screw the lock or the like, and it is easy to attach and detach the system. However, in the case where the absorbing force of the magnet is deteriorated due to a long-term change, there is a concern that the absorbing is detached and the cap is detached.

In the present embodiment, by the above-described structure, it is not necessary to mount the screw, and the mounting and detaching steps are facilitated, and the workability is improved. Further, by using the sliding press-fit structure of the engagement projection 8a and the insertion guide 8b in combination with the pair of magnets 29, even if the suction of the magnet 29 is released, the sliding cover structure and the side cover 8 do not fall. On the contrary, even if the engaging projection 8a or the insertion guide 8b is broken and broken, the magnet 29 and the side cover 8 do not fall. Further, in the side portion of the side cover 8, it is easy to understand in the removal direction, and the printing (arrow) 31 indicating this direction is Engraving (Figure 7).

Next, a method of fixing the outer casing 1 to the fan unit 40 will be described. In the fixing method of this embodiment, the number of screws to be used is greatly reduced. Fig. 14 is a perspective view showing a state in which the fan unit 40 is assembled to the outer casing 1, and Fig. 15 is a schematic view showing a screw position in which the number of screws is reduced by the present embodiment. Fig. 16 is a schematic view showing the screw position of the screw used in the conventional fan unit shown for comparison. Fig. 17 is a schematic view showing a state in which two adjacent fan units are locked together by one screw in the G position in the figure of Fig. 14, and Fig. 18 is only the first in Fig. 17. A perspective view of an orifice member and a second orifice member. Fig. 19 is a perspective view showing an enlarged end portion of the fan unit shown in Fig. 14.

The fan unit 40 is constituted by a pair of fans 4 and an electric motor 5, and an orifice member 36 and an air guiding member 37 of a size corresponding to the above, as described at the outset. Moreover, in the outer casing 1, four fan units 40 are accommodated in parallel in the longitudinal direction. The four fan units 40 are locked to the outer casing 1 by screws 25c and screws 25d, respectively. The screws 25c are used to lock the upper corners of the both ends of the fan unit 40 to the outer casing 1. On the other hand, the screw 25d is used to lock the center lower portion of each fan unit 40 to the outer casing 1 (Fig. 14 and Fig. 15). Further, in Fig. 14, only one screw 25c and one screw 25d are shown, and other screws are omitted.

As shown in Fig. 16, a conventional fan 4 and an electric motor, and an orifice member, an air guiding member, and a fan unit of a size corresponding to each other are configured. The screw 25 for locking is provided in a single fan unit at each corner. Therefore, the number of equipped fan units is increased In other words, the number of the screws 25 for locking is increased. In comparison with this, in the method of fixing the fan unit 40 of the present embodiment, the number of screws used is greatly reduced. This will be explained below.

Here, it is assumed that the adjacent two fan units 40 are described as the first fan unit 40A and the second fan unit 40B. In the upper corner portion of the mutually facing end portions of the first orifice member 36A and the second orifice member 36B which are the orifice members of the first fan unit 40A and the second fan unit 40B (part of G in Fig. 14) In the cylindrical hole, the divided screw holes 47A and 47B which are divided into two pieces along the axis are provided. The split screw holes 47A and 47B are formed so as to form a cylindrical screw hole facing each other. Further, in the inside of the corner portion, projections 46A, 46B projecting from the outer casing 1 side are provided, respectively. On the other hand, in the opening edge portion of the outer casing 1 corresponding thereto, the position of the screw hole formed in the divided screw hole pieces 47A and 47B and the female screw hole 42 are screwed, and the through hole 33 is positioned at the position of the projection 46A. The opening, the elongated hole 34 is opened at the position of the projection 46B.

The through hole 33 and the long hole 34 are engaged with the projections 46A and 46B, respectively. Thereby, the separation of the first orifice member 36A and the second orifice member 36B is restricted. In this state, the first orifice member 36A and the second orifice member 36B are locked together by a screw 25c into which the screw holes formed by the divided screw holes 47A, 47B are inserted. The hole corresponding to the projection 46B is a long hole, and the forming accuracy or assembly error of the orifice member 36 is considered. Moreover, the structure in which the through hole 33 and the long hole 34 and the projections 46A and 46B are engaged and engaged is also provided on the side of the orifice members 36A and 36B, the hole is opened, and the projection is provided on the outer casing 1 side. .

Regarding the combination of the orifice member 36 and the air guiding member 37, as shown in Fig. 19, by extending from the upper surface of the orifice member 36 to the air guide The engaging hole 35 formed at the distal end of the extending portion in the direction of the member 37 is engaged with the engaging convex portion 43 formed on the upper surface of the air guiding member 37. The engagement structure of the engagement hole 35 and the engagement projection 43 is similarly provided on the back side of the orifice member 36 and the air guiding member 37. As described above, the orifice member 36 and the air guiding member 37 are combined, and the fan unit 40 is assembled.

The air passage walls 37a, 37a forming the air passages are provided in pairs at the upper and lower portions of the air guiding member 37. On the other hand, the upper and lower portions of the orifice member 36 and the pair of top walls 36a and 36a forming the air passage are also provided in pairs. The pair of top walls 36a and 36a and the air passage walls 37a and 37a are partially overlapped to each other to form an air passage from the suction port 3 toward the air outlet 2. In other words, the air that is sucked in from the suction port 3 by the fan 4 is then blown out from the two outlets by the orifice member 36 and the air guiding member 37. ).

Regarding the combination of the shield 38 and the orifice member 36 (fan unit 40), as shown in Fig. 19, a projection extending from the upper corner portion of the shield 38 toward the orifice member 36 is provided to be formed in this projection The engaging claws 45 at the distal end of the portion are engaged by the engaging holes 41 formed at the corners of the opposing faces of the orifice member 36. The engagement structure of the engagement claw 45 and the engagement hole 41 is also provided in the same manner at the other three corner portions of the opposite faces of the shield 38 and the orifice member 36. The shield 38 and the orifice member 36 (fan unit 40) combined as described above are locked to the outer casing 1 by screws 25d (Fig. 14).

[Industrial availability]

As described above, the air blower system according to the present invention is useful for a blower provided at a high place in a room, particularly at a connection terminal. The blower for the quick junction terminal is most suitable.

1‧‧‧Outer box

1a‧‧‧ side

1b‧‧‧ access openings

10‧‧‧Speed junction terminal (connection terminal)

10a‧‧‧ insertion port

11‧‧‧ Terminal Block

11a‧‧‧Hands

11b‧‧‧立起部

17‧‧‧Power cord

17a‧‧‧Wire

24‧‧‧Sliding pedestal

24a‧‧‧Sliding surface

24b‧‧ fulcrum

24c‧‧ Section (stopping)

Claims (3)

An air blower includes a fan that includes a suction port and an air outlet, and a fan that is housed in the outer box and that blows air from the air inlet to the air outlet, and a motor that drives the fan. Each of the motors has a first array of fan units and a second fan unit, and the first fan unit has a first engaging portion that engages with the first engaged portion of the outer box, and a first split screw hole a second one of the two pieces of the cylindrical screw hole divided along the shaft; the second fan unit has a second engaging portion that engages with the second engaged portion of the outer box; and a second a split screw hole, the other side of the two pieces; the first fan unit and the second fan unit are engaged with the first engaged portion and the second engaging portion is engaged with the first engaging portion In the second engaged portion, the first split screw hole and the second split screw hole correspond to the female screw hole of the outer box to form the cylindrical screw hole; the first fan unit and the first fan unit second Fan unit train is locked with the female screw through the screw hole of the cylindrical outer casing and said common screw. The air blower according to claim 1, wherein the second engaging portion of the outer box is in a direction adjacent to the first fan unit and the second fan unit, and the size is smaller than the first one. minister. The air blower according to claim 1, wherein the first fan is The unit and the second fan unit and the shield protecting the fan are locked together by a common screw.