JPS6246120Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a blower device for a warm air heater. Specifically, a hot air heater is equipped with a heat source such as a combustor of gas or oil, and blows air into the heat source using a blower fan to exchange heat and supply warm air indoors. Regarding equipment.

(b) Prior Art Conventionally, the power supply lead wire of the blower fan motor in the warm air heater was tied to a protector that protects the blower fan using a clamper (clip) or the like. For this reason, the lead wires are exposed to the outside and may come into contact with the blower fan, which is dangerous. In order to overcome this drawback, the lead wires are generally protected by being inserted into a hollow pipe. However, the structure using this pipe has the problem that it is troublesome to insert the lead wire into the pipe, and the cost of parts is also high.

(c) Purpose In view of the above points, it is an object of the present invention to provide a safe and inexpensive blower device for a warm air heater that protects the power supply lead wire of a blower fan motor with a simple structure.

(D) Structure For this purpose, the present invention is equipped with a heat source such as a gas or oil combustor inside, and blows air into the heat source with a blower fan to exchange heat and supply warm air into the room. In the blower device for a hot air heater, an air intake port is provided on a back plate of the heating unit, and a plurality of suction slits are formed to support a motor of the air blowing fan disposed at the air intake port, and the air intake port is a cover member that is fixed to the back plate over the cover member; a protective member that forms a storage path in which the power supply lead wire of the motor is stored along the inner surface of the cover member; and a protective member provided in the protective member. and a plurality of locking pawls that respectively lock into a plurality of locking holes provided in the cover member.

(E) Example First, 1 is a hot air heater, which is equipped with a heat source such as a gas or oil burner inside, and blows air to the heat source to exchange heat through an air outlet (not shown) provided in the front. This system supplies warm air into the room. A back plate 2 of the heater 1 is provided with an intake port 3 whose peripheral edge is bent inward at a position facing the heat source.

A blower fan 4, which is a blower, is attached to the intake port 3 in a configuration to be described later. Reference numeral 6 denotes a box-shaped cover member formed by drawing a steel plate using a press and having an opening on only one side, and a large number of suction slits 9 for sucking air are provided on the four sides of the peripheral wall 7 and back wall 8. There is. Three recesses 10 each having a mounting hole (not shown) are formed in the center of the back wall 8 of the cover member 6. It is attached via the body 11 with mounting screws 12. Mounting pieces 1 are formed on the upper and lower parts of the cover member 6 that fixes this air blower inside.
By screwing the mounting screws 15 into the mounting holes (not shown) formed in the holes 3 and 14 and the mounting holes (not shown) formed in the upper and lower circumferential ends of the air intake port 3 of the heater 1, It covers the intake port 3 and is fixed to the back plate 2 of the heater 1. Of course, before fixing to the back plate 2 of this blower device, it is attached to the cover member 6 to protect the power supply lead wire 16 of the motor 5 of the blower fan 4. This installation will be described below based on FIG. 5. FIG. 5 is a perspective view of the left side of the cover member 6 viewed from inside (when the heater 1 is viewed from the back). Reference numeral 17 denotes a lead wire protection frame body bent into a substantially U-shaped cross section, which is made by bending a steel plate using a press. ) It is bent into an L-shape along the inner surface. Of course, the lead wire protection frame 17 has a substantially U-shaped cross section as described above, and protects the lead wires 16 from the blower fan 4 within the storage path formed with the cover member 6. Further, the protective frame 17, which forms a storage path for the lead wire 16 with the cover member 6, has its U-shaped ends bent outward to form an abutment surface 18, and the cover member It is configured to come into surface contact with the back wall 8 and left peripheral wall 7 of No. 6. Furthermore, a rectangular locking hole 19 is formed in the back wall 8 with a bead 21 for reinforcing the cover member 6.
2 places on the top and 2 places on the bottom.

In addition, rectangular locking holes 20 which are longer in the lateral direction than the locking holes 19 are formed at appropriate positions in the left peripheral wall 7, one each on the upper and lower sides. Two locking claws 22 that fit into the locking holes 19 are protruded from the upper and lower portions of the contact surface 18 of the lead wire protection frame 17, respectively. Locking claw 2 that fits into
3 are provided upwardly and downwardly, respectively. 24 is a notch for guiding the lead wire 16 outward from the cover member 6, and screws 25 are provided at the top and bottom to protect the lead wire 16 led outward together with the back plate 2 of the heater 1.
A protective frame 26 is also provided which is fixed to the back plate 2 at.

With this structure, first, the motor 5 of the blower fan 4 is fixed inside the box-shaped cover member 6 via the elastic body 11 with the mounting screws 12, and then the power supply lead wire 16 of the motor 5 is fixed. is guided to the left along the back wall 8 of the cover member 6 (as seen from the rear of the heater 1), and further along the left peripheral wall 7, a rear notch 2 is formed.
4 to the outside of the cover member 6. At this time, the lead wire 16 is attached along the cover member 6 while being protected by a lead wire protection frame 17. That is, since the lead wire protection frame 17 has a U-shaped cross section, after the lead wire 16 is inserted into the internal space, the contact surface 18 of the frame 17 is pressed against the back wall 8 of the cover member 6. The locking claws 22 and 23 are inserted into the locking holes 19 and 20 so as to come into contact with the left peripheral wall 7, and are separated from each other so that the locking claws 22 and 23 protruding outward from the cover member 6 do not come off. The power supply lead wire 16 of the motor 5 is attached along the inner surface of the back wall 8 and the left peripheral wall 7 by bending it in the direction shown in FIG. At this time, the locking hole 20 of the left peripheral wall 7
By leaving the locking claw 2 open for a relatively long time,
2 is moved so as to fit into the locking hole 19 of the back wall 8, the locking pawl 23 slides on the left peripheral wall 7 and fits into the locking hole 20 which is opened long in the horizontal direction as described above. do. After that, the cover member 6 may be fixed to the back plate 2 of the heater 1 using the mounting screws 15. Further, the lead wire 16 guided outward from the cover member 6 through the notch 24 is connected to the electrical box (not shown) inside the heater 1 through an opening (not shown) made in the back plate 2. (not shown). Of course, other lead wire protection frame 1 is used to prevent the lead wire 16 from being exposed.
This will be covered in Section 6.

(f) Effects The present invention as described above is safe because it can protect the power supply lead wire of the blower fan motor in a warm air heater from the blower fan with a simple structure. Furthermore, the installation work is significantly easier than the conventional structure in which a lead wire is inserted into a hollow pipe and the pipe is further fixed.

[Brief explanation of the drawing]

Fig. 1 is a rear perspective view of a heating machine to which the device of the present invention is applied, Fig. 2 is an enlarged view of the main parts on the back of the heating machine, Fig. 3 is a sectional view taken along line A-A' in Fig. 2, and Fig.
The figure also shows a sectional view taken along the line B-B' in FIG. 2, and FIG. 5 shows an exploded perspective view of the main parts of the cover member and the lead wire protection frame. DESCRIPTION OF SYMBOLS 1...Hot air heater, 2...Back board, 3...Intake port, 4...Blower fan, 5...Motor, 6...Cover member, 9...Suction slit, 15...Mounting screw, 16 ...Power supply lead wire, 17... Lead wire protection frame, 19, 20... Locking hole, 22, 23...
...Latching claw.

Claims (1)

[Scope of utility model registration request] In a blower device for a warm air heater, which has a heat source such as a combustor of gas or oil inside, and blows air to the heat source with a blower fan to exchange heat and supply warm air indoors. an air intake port provided on a back plate of a heating unit; and a cover member having a plurality of suction slits, supporting a motor of the blower fan disposed at the air intake port, and fixed to the back plate over the air intake port; and a protection member that forms a storage path with the cover member for storing the power supply lead wire of the motor along the inner surface of the cover member, and the protection member has a plurality of holes provided in the cover member. A blower device for a warm air heater, which is provided with a plurality of locking claws that lock into locking holes, respectively.