JPS60149856A - Protective device for blower of air conditioner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a blower protection device for an air conditioner.

A conventional air conditioner will be explained with reference to FIGS. 1 and 2. 1
The base is a part of the outer box, and part of it has a hole for placing the blower. Reference numeral 2 denotes an outer box, which is placed on top of the base 1 and has a structure that covers the entire heat exchanger, electrical parts, etc. 3
4 is a heat exchanger, and 4 is a blower that generates air flow in the direction of the arrow.

A guard 5 for protecting the blower 4 is composed of radial lines and a ring-shaped reinforcing ring 5a. Reference numeral 6 denotes a mounting ring for attaching the guard 5 to the base 1, which is integrally welded to the guard 5 and is coated with synthetic resin paint after welding. Part 6a is the welded part between the mounting ring 6 and the guard 5. A portion 5b is a welded portion between the radial line of the guard 5 and the reinforcing ring 5a. Reference numeral 6b is a cushion to prevent the base 1 and the retaining ring from chattering and making noise due to vibrations during operation.

Further, the take-up ring 6 and the base 1 are provided with holes that match with each other, and these holes are fixed with screws. Due to the above-described configuration, it took time and effort to attach the bush A of 6b, and there were cases where the user forgot to attach the bush J of 6b, causing a rattling sound during operation. Also, when attaching the guard 5 to the base L, it was not easy to match up the holes in the J ring 6 with the 6 holes in the base 1, such as on top of a moving conveyor or in a narrow space for installation. Since there are many welding points such as welded part 5b of 5a and welded part 68 of take-out ring 6, it is difficult to detect even if there are unwelded parts, and if there are unwelded parts, vibrations may cause rattling noises during operation. There were defects such as when a child or the like inserted their finger, the radial line would open and there was a risk that the finger would go inside and hit the blower.

Furthermore, there were also defects such as paint not adhering well to the welding points 5b and 6a and being prone to rust.

The present invention has been made to improve the above defects. That is, a protrusion 8a is provided on the ring 8, and both sides of the protrusion 8a are locked or screwed together.

The present invention will be explained below with reference to FIGS. 3 to 5.

Note that the same reference numerals as the conventional reference numerals indicate the same items. Reference numeral 1a is a concave portion formed by squeezing the outer periphery of the hole in the base l into a ring shape, and a portion of the concave portion is provided with claw portions 1b at two locations that do not allow the punch to be squeezed. This pawl is provided below the center of the six, and a hole for a screw is provided directly above the center of the hole. 7 is a guard with a radial line and a reinforcing ring 78 welded together. 8 is installation, A
Reference numeral 8 denotes a convex portion provided on the attachment ring 8, which is slightly convex from the plane of the attachment ring 8. Note that 7b is a weld β7a between the radial line and the reinforcing ring 7a, and b is the weld between the radial line and the mounting ring 8.
This is the welding point. Furthermore, after welding, the entire structure is coated with soft synthetic resin powder. This coating is thicker than the paint and welded part 7b.
, 8b, etc. have a large heat capacity, so they tend to adhere more thickly than other parts. When attaching the guard 7 to the base 1, align the mounting ring 8 with the concave part 1a of the base 1, and rotate it a little to fit it into the screw hole of the base 1.
The process is completed by aligning the holes of the ring 8 and screwing them into the base 1 from the mounting ring 8 side with the screws 9. Note that the concave portion 1a of the base l
The depth of the mounting ring 8 and the height of the protrusion 8a of the mounting ring 8 are slightly increased, and when the screw 9 is screwed together, a slight repulsive force is applied between the claw 1b and the protrusion 8a.

The present invention has a structure in which a convex part 8a is formed on a part of the mounting ring 8 of the guard 7, and a repulsive force is exerted on the base 1 when the screw 9 is screwed together. Does not occur. In addition, unlike the conventional example, there is no need to remove separate parts, and there is no need to forget to install parts, which is advantageous in terms of price.The same effect can be obtained even if the protrusion is made from the base 1. In addition, the outer periphery of the hole in the base l is concavely drawn to form four parts 1a that are slightly larger than the mounting ring 8, so that the mounting ring 8 can be easily aligned. According to the report, the synthetic resin coating material is thicker than the other parts near the weld, and is not only extremely effective in preventing rust during welding, but even if the weld is incomplete, the coating material will coat both base metals. Since the coating is continuous on the surface, there is no shaky sound in this area.

It is extremely effective in terms of safety, as even if a child or the like tries to insert their finger, the radial lines will not open due to the strength of the coating material and the finger will not be inserted. Also, when the claw 1b is downward and the screw 9
Since it has an upper t-shape, it can be easily aligned and secured even on a moving conveyor.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a conventional air conditioner, FIG. 2 is an external view of the guard in FIG. 1, FIG. 3 is a longitudinal sectional view of the air conditioner of the present invention, and FIG. An external view of the guard, FIG. 5 is a front view in FIG. 3. ■...Base, 1a...Recess, ■b...Claw, 2.
... Outer box, 3... Heat exchanger, 4... Blower, 5...
・Guard, 7... Guard, 7a... Reinforcement ring, 7b
...Welded part, 8...Mounting ring, 8a...Protrusion, 8
b...Welded part, 9...Screw.

Claims (1)

[Claims] 1. In the case where the outside of the blower (4) is protected by a guard (7), a hole is provided in a part of the box that extends outside, such as the base (1) and the outer box (2), and the blower is placed in this hole. (4
) and the mounting ring (
8), the mounting ring (8) is provided with a convex portion (8a), and a claw that engages with the ring (8) is provided around the hole, and the outer periphery of the hole provided with the claw is The dimension between this recess (1a) and the claw (1b) is the guard (7).
) is provided with a screw-fastening part to the guard (7), which is smaller than the protrusion dimension of the J-shaped convex part (8a) provided on the mounting ring (8), and is located away from the claw (1b). A blower protection device for an air conditioner, characterized in that the mounting link (8) is made of metal and the outside thereof is covered with a soft synthetic resin coating material.