JPS5819634A - Blower - Google Patents

Abstract

PURPOSE:To prevent a motor from being abnormally heated and to improve safety, by a method wherein a fixture, with which a bearing part of a motor for blast and for air conditioner is secured to a blower, is constituted by the use of a high-heat transfer substance so that it covers a bearing collar part and a blower body and forms a radiating part between it and the body. CONSTITUTION:Heat, generated at a body 8 and bearings 9, 9 by driving a blast motor 7, is transferred to a fixture collar part 14 of a fixture collar part 14 of a fixture base 12 through a vibration absorbing rubber 11. The fixture collar part 14 has a better thermal conductivity and a gap is formed between a fixture cover 16 and a collar part 19. Thereby, an enough radiation takes place, and additionally, a heat radiated from the motor body 8 is gradually dissipated through a heat dissipation part 15. This causes a base plate 1 to be reduced in temperature rise, and enables to perform a sufficient dissipation of a heat generated at the body 8 and the bearing 9, which results in preventing the motor from abnormal heating.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to, for example, a blower used in an air conditioner, and relates to an improvement in the mounting structure of a 4tK blower motor.

Figure 1 shows conventionally used air conditioner O1! The parts are shown disassembled: a is the mounting board, b is the heat exchanger, ・ is the back plate, d is the cross-flow fan, ・ is the blower electric motor, f is the temperature 92 ivy s g#i with the pile force Cover. The above-mentioned temperature riser f is connected to an electric motor for blowing air, and is designed to automatically stop when it generates heat.

By the way, as shown in FIGS. 2 and 3, the blower electric motor consists of a motor body, a bearing portion 1.sub.i, and a rotating shaft j. The mounting board ak is integrally assembled with the mounting frame kK, which accommodates only half of the motor body, and both bearing portions i.

l is only half supported. Motor body and both bearings i
, Ic)Remaining〉Covered by the above mounting force z4-H,
And scattered villages were identified.

However, if the electric fan for the blower rotates the cross-flow fan d, the temperature will rise suddenly. In particular, the rise in temperature of the bearing part 10 of the electric motor body is also noticeable.Although the circumferential surface of the bearing part 1 is usually wrapped with a Kti anti-vibration material, the effect of preventing heat conduction is not sufficient.

The allowable temperature of bearing part i is approximately 80℃ due to the heat resistance of the lubricating oil.
℃, but since the heat effect is bad, the temperature higher than that is KtJ.
) Easy - 0 Therefore, the motor body became locked),
(for operation; there is a risk of bending over); abnormal heat generation may cause the installation frame (k) in the pile cover (g) to become thermally deformed, creating a risk of smoke generation (2) and ignition (2). Although this is for advance detection, it is expensive and contributes to high costs.

The present invention has been made by paying attention to the above-mentioned circumstances).
By using a mounting plate made of a good thermal conductive material and equipped with a mounting part and a heat dissipation part, we ensure that the blower motor generates 4% heat at all times! The aim of this project is to provide an inexpensive blower that prevents damage and improves safety.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 4 to 9. Reference numeral 1 in FIGS. A mounting base 2 is integrally provided at a corner of the mounting board 1 in a protruding manner. That is, it has a semicircular support part J and support bins 4 on both sides of it.
is provided protrudingly, and furthermore, a claw insertion hole 1.1 is provided on the outside of the support pins 4, 4 on the negative side, and a hole 1.1 for inserting a claw is provided on the outside of the support pin 4.4 on the other side.
Fixed screw hole 6. # is provided.

Reference numeral r denotes an electric motor for blowing air, which includes a motor main body 8 having a jacket made of a synthetic resin material, bearing parts 9 protruding from both ends of the motor body 8, and a fan (not shown) protruding from one of the bearing parts 9. It consists of a rotating shaft 10 fitted with a rotating shaft 10. Vibration damping members 11 and 11 are fitted into the bearing portions 9.9, respectively. 12 is the installation pace 16), which is made by bending a metal material plate. Mounting pace 12 is the above-mentioned anti-vibration t.
A mounting collar 14.14 is curved along the half circumference of the arm 11211, and is provided with pivot holes 13- at both ends thereof, into which the support pin 4- fits, and these mounting collars 14.14. 1
4 and a heat dissipating section 15 connecting the two. The heat dissipation section 15 has a surface that covers a part of the outer peripheral surface of the motor main body 8 and is interposed at the interface 11 with the bottom surface of the mounting frame 2 . Note that the heat dissipation portion 15 is formed so as to have a gap between the end face of the motor body 8 on the side of the bearing portion 9.9.

1# is a mounting cover 1. This is made by bending a metal material plate. The mounting force /4-11* is supported by the end WiK of the mounting frame 2, and has a claw insertion hole ξ, JK insertion claws xv, xr, and a small hole 11.11 facing the identification screw hole #. ΣTsubabe II and ζO Takube 19
The force Δ provided at the circumferential end portion consists of a portion 2o. Said collar part 19
is the bearing part 9. It is curved along the half circumferential portion of #O, and the force Δ portion 2o is curved so as to cover the outer surface of the motor body #0, and a plurality of heat dissipation holes 21 are provided.

Thus, the blowing electric motor 1 rotates the galvanometric fan. Heat is generated from the electric motor body 8 and the bearing portion 9.9. 41, the bearing part 9° #OO degree rise is high, and the mounting collar part 14 of the mounting pace 12 is attached via the vibration isolating rubber 11.11.
．． Heat is conducted to 14. The mounting flanges 14 and 14 are made of a material with good thermal conductivity, and if there is a gap between them and the flange 1# of the mounting force /4-16, heat will be sufficiently radiated from the ζ loops. In addition, the heat dissipation part 15 temporarily stops receiving the heat dissipated from the motor body I.
Heat dissipates gradually. Therefore, the temperature rise of the mounting board 1 is small, and sufficient heat is dissipated from the motor body # and the bearing portion 1.11. More mounting force/? -Jj also provides sufficient heat dissipation from the blower motor r, so this abnormal heat generation does not occur.

In the above embodiments, the blower is applied to a single air blower, but the invention is not limited to the blower, and may be a device with a blower structure or the blower itself.
A.Of course.

Further, although the mounting cover 16 is provided in the above embodiment #C, this is not necessarily necessary and may be provided integrally with the mounting space IIK.

As explained above, according to the present invention, the bearing part of the blower motor is fixed to the blower main body by the mounting collar part of the mounting plate made of a good heat conductive material, the motor main body is covered by the heat dissipation part, and the blower main body Because it is interposed between the fan and the fan, the heat generated by the blower motor does not get trapped inside, and the heat is efficiently dissipated to prevent abnormal high temperatures. Therefore, it is possible to improve safety and durability, eliminate the need for danger prevention members such as temperature limiters, and reduce costs.

[Brief explanation of the drawing]

Fig. 1 is a partially exploded perspective view of an air conditioner, which is a blower, showing a conventional example of the present invention, Fig. 2 is a longitudinal sectional front view of its main parts, Fig. 3 is a longitudinal sectional side view, and Fig. 4 is a main part of the air conditioner. FIG. 5 is a side view of the attack structure of the blower motor; FIG. 6 is a perspective view of the installation space; FIG. 8 is a vertical sectional view of the assembly of the blower electric motor and mounting space, FIG. 8 is its side view, and FIG.
The figure is a perspective view of the mounting cover. 8.-Electric motor main body, 9.. Bearing section, 1.. Air blower electric motor, 1.-Blower main body (air conditioner main body), 14..
・Mounting flange, 15... Heat dissipation part, l? ---Principal Base-6 Applicant's Representative Patent Attorney Liao Suzu Jiang Wu

Claims (1)

[Claims] Bearings are protruded from both end faces of the motor body O to fix the blower electric motor to the blower body. The above-mentioned bearing part is provided with a normal phase flange part that defines the blower body, and a heat conductive material that covers the motor body and is interposed between the blower body and the O-separation section, so that there is sufficient space for attaching heat conductive material. A blower featuring a toto.