JPS6349650Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an electric hot air fan having a heater such as a coil heater.

Structure of conventional example and its problems As shown in FIGS.
Since the screw tightening is fixed to 2, the screw 103 and the screw tightening work are required, which is very troublesome and has the drawback of being difficult to assemble.

Purpose of the invention The present invention aims to eliminate such conventional drawbacks, and aims to eliminate screws and screw tightening work and facilitate assembly.

Structure of the invention The electric hot air fan of the invention has a built-in fan motor for generating wind, a heater with a heater wire wrapped around an insulating plate to turn the air into hot air, and a blower as an outlet for the hot air. A concave part is provided in the outlet grille fixing frame which further forms the outlet part, and this concave part is fitted into a convex part provided on a slightly movable claw of the front case that constitutes the main body case. By attaching the exit grille fixing frame, the number of screws is reduced and the screw tightening work is reduced, making assembly easier.

DESCRIPTION OF EMBODIMENTS Examples of the present invention will be described below with reference to FIGS. 3 to 5.

In the figure, 1 is the main body case of the electric hot air fan,
A suction port 2 is provided at the rear part. 3,4
are a propeller fan and a motor that generate wind, which are attached to the rear inside the main body case 1. In front of the propeller fan 3 and the motor 4, a heater 7 is provided in which a heater wire 6 is wound around an insulating plate 5. Reference numeral 8 denotes an outlet grille provided at the front opening of the main body case 1, and is provided with an outlet 9 formed from a large number of holes, from which warm air comes out to the front. The outlet grille 8 is fixed to an outlet grille fixing frame 11 with a pin 10, and by moving the outlet grille 8 around the pin 10, the direction of the hot air can be changed. Further, the air outlet grill fixing frame 11 has a recess 12 formed on its outer circumferential surface, and this recess 12 is fitted into a protrusion 14 provided on the inner circumferential surface of the front case 13 to form an integral body. Two concave portions 12 and two convex portions 14 are provided on the upper and lower sides, and when they are integrated, they do not move even if the outlet grill fixing frame 11 is pushed or pulled. There are grooves 15 on both sides of the protrusion 14 of the front case 13, so that the protrusion 14 can move in the direction of the arrow to some extent, and the tip is long and forms a claw 16. and,
When removing the outlet grill fixing frame 11 from the front case 13, use a tool to remove the screws 18 that fix the front case 13 and the main case 1, and then spread the claws 16 of the front case 13 with your fingers. Although it can be removed, the outlet grill fixing frame 1 cannot be easily removed without a tool. 17
is a power switch attached to the main body case 1 for turning on and off the operation.

In the above configuration, when the power switch 17 is turned on, the propeller fan motor 4 causes the main body case 1 to
Air is sucked in through the suction port 2 at the rear of the fan, is heated by the heater wire 6 while passing between the heaters 7, and is discharged to the front from the air outlet 9 of the air outlet grille 8 as warm air.

Effects of the invention As described above, according to the invention, since the concave part of the outlet grille fixing frame and the convex part of the front case are fitted and fixed, the need for screws and screw tightening work is eliminated, making assembly easier. This has the great effect of not only being able to hold it in place, but also preventing it from coming off easily from the front.

[Brief explanation of the drawing]

Figure 1 is a front view of a conventional electric hot air fan.
Fig. 2 is a longitudinal sectional view of the electric hot air fan, Fig. 3 is a front view of the electric hot air fan according to an embodiment of the present invention, and Fig. 4 is a longitudinal sectional view of the electric hot air fan.
5 is an enlarged perspective view of the outlet portion of the electric hot air fan, and FIG. 6 is a plan view of the main part of FIG. 5. 1...Body case, 3...Propeller fan, 4
... Motor, 5 ... Insulating plate, 6 ... Heater wire, 7
... Heater, 8 ... Air outlet grill, 11 ... Air outlet grill fixing frame, 12 ... Recessed part, 14 ... Convex part,
16...Claws.

Claims (1)

[Scope of utility model registration request] A propeller fan and a motor that drives it,
A heater that converts the air from the fan into hot air; a main body case that houses the propeller fan, motor, and heater; an outlet grill that serves as an outlet for the hot air; and an outlet that rotatably supports the outlet grill. A grill fixing frame, a front case that is fixed to the front of the main body case and into which the outlet grill fixing frame is fitted, and a front case that is flush with the inner peripheral surface of the front case and can be slightly movable in the vertical direction of the inner peripheral surface. Nails formed in
The pawl has a protrusion protruding inwardly and a recess provided on the outer peripheral surface of the outlet grille fixing frame, and the protrusion and the recess fit together to secure the outlet grille fixing frame to the front case. Fixed electric hot air fan.