JPH0739260U - Drain pipe for motor - Google Patents

Abstract

(57) [Summary] [Purpose] Water such as fountains can be effectively prevented from entering laterally and upward, and replacement due to breakage can be performed relatively easily. A drain pipe is bent into a substantially L shape, and a lower end surface 2A of the drain pipe is formed so as to extend in a substantially horizontal direction. Water or the like that enters the drain pipe toward the lower end surface 2A from the lateral direction or the lower side is blocked by the inner wall surface of the bent portion 2 that is bent in a substantially L shape, and water can be prevented from entering the upper back portion and the inside of the housing. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a drain pipe for a motor which is attached to the bottom of a housing of a motor and drains condensed water or the like generated inside the housing to the outside.

[0002]

[Prior art]

 The temperature of the place where the motor is installed varies depending on the purpose of use and the application.For example, in a relatively low-temperature freezer or a fan motor of a refrigerating car, the temperature difference between the inside and outside of the housing causes condensation inside the housing. However, there is a risk that it will accumulate on the bottom of the housing and flood each part, so it was necessary to install appropriate drainage means. Therefore, as shown in FIG. 5, for example, there is known one in which a drain pipe 101 having a substantially L-shaped cross section is attached to the bottom of a housing 100.

[0003]

[Problems to be solved by the device]

 By the way, in the case of such a drain pipe, it is effective in discharging the condensed water, but if water enters from the lower part in the horizontal (horizontal) direction, the water can be relatively easily discharged inside the drain pipe. There was a risk that the air would flow back into the housing and enter the inside of the housing, which caused an inconvenience. Therefore, in view of the above-mentioned circumstances, the present invention can effectively prevent the ingress of water such as a fountain in the lateral direction or the upward direction, and can relatively easily replace the water due to damage or the like. The purpose is to provide a drain pipe for a motor.

[0004]

[Means for Solving the Problems]

 That is, the present invention relates to a motor drain pipe which is attached to a bottom portion of a housing of a motor and drains condensed water or the like generated inside the housing to the outside, wherein the drain pipe is bent into a substantially L shape. Is formed such that the lower end portion of the drain pipe is substantially horizontal, and the head portion of the drain pipe divided into two parts is thick and the inner and outer peripheral surfaces of the head portion are tapered toward the upper end surface. That is, a flange that can be easily inserted and removed is formed of a stretchable material in the mounting hole of the housing body.

[0005]

[Action]

 In this invention, the drain pipe is bent in a substantially L shape, and the lower end surface of the drain pipe is formed so as to extend in a substantially horizontal direction. The drain pipe is inserted laterally or from below toward the lower end surface. The water that is about to be blocked is blocked by the inner wall that is bent into a substantially L-shape, and it is possible to prevent water from infiltrating into the upper rear part or the inside of the housing.

Moreover, in this invention, the head part of the drain pipe divided into two parts is thick, and the inner and outer peripheral surfaces of the head part are tapered toward the upper end surface to form a housing. It can be easily inserted into and removed from the hole.

[0007]

【Example】

 The present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing a motor drain pipe according to the present invention. This motor drain pipe is made of elastic material such as rubber, and is formed such that the inner and outer peripheral surfaces 11A and 11B of the head portion 11 of the main body 1 are tapered toward the upper end surface.

This motor drain pipe has a bent portion 2 in which the lower half of the main body 1 is bent obliquely to form a substantially L-shape, and the head portion 11 is a conventional one. Since it is made thicker than the conventional one, the durability is significantly improved, and unlike the conventional one, even if it is attached to the housing 3 without using an adhesive, the required strength is sufficiently secured. Is ready. It should be noted that the head portion 11 is provided with slits 11C having a constant width at two portions facing each other.

In addition, the drain pipe for a motor is formed such that the lower end surface 2A of the bent portion 2 extends along a substantially horizontal direction, and the drain pipe for the motor may be inserted laterally or from below toward the lower end surface 2A of the drain pipe. Water or the like is blocked by the inner wall surface of the bent portion 2 bent in a substantially L-shape, so that it is possible to prevent water from entering the upper back portion and the inside of the housing. A flange 12 is formed at an intermediate portion of the main body 1 so as to prevent the main body 1 from coming off when the main body 1 is inserted into the housing 3.

Therefore, according to this embodiment, for example, when the body 1 of the drain pipe shown in FIG. 2 is to be detached from the state where it is attached to the housing 3, the body 1 and the like are pinched with a finger and downward (see FIG. 3 in the α direction), the slit 11C of the head 11 is closed and the head 11 is closed as if it were closed. If the head shown in FIG. 3 is pulled further in the same direction, the head 11 is greatly bent to a state where it can pass through the hole 3A of the housing 3, and the hole 3A can pass through the hole 3A relatively easily. is there.

[0011]

[Effect of device]

 As described above, according to the present invention, the drain pipe is bent in a substantially L shape, and the lower end surface of the drain pipe is formed so as to extend substantially in the horizontal direction. Water entering from the side or from below is blocked by the inner wall that is bent into a substantially L shape, and it is possible to prevent water from entering the upper back and the inside of the housing. Has the effect of improving.

Moreover, in this invention, the head portion of the drain pipe divided into two is thick, and the inner and outer peripheral surfaces of the upper end of the drain pipe are tapered toward the upper end to form a housing. Not only can it be easily inserted into the hole, but because the strength of the head increases, stable fixing can be achieved without the need for an adhesive, so it is necessary to perform a troublesome work such as peeling the adhesive. It can be easily replaced by simply pulling it out.

[Brief description of drawings]

FIG. 1 is a perspective view showing a drain pipe for a motor according to the present invention.

FIG. 2 is a sectional view showing a state in which the motor drain pipe according to the present invention is attached to a housing.

FIG. 3 is an explanatory view showing a state when the drain pipe for the motor is pulled out.

FIG. 4 is an explanatory view showing a state when the drain pipe for the motor is pulled out.

FIG. 5 is a sectional view showing a conventional motor drain pipe.

[Explanation of symbols]

 1 Main body 2 Bent part 3 (Motor) housing 11 Head part 12 Flange

Claims (1)

[Scope of utility model registration request] 1. A drain pipe for a motor, which is attached to a bottom portion of a housing of a motor and drains condensed water or the like generated inside the housing to the outside, wherein the drain pipe is bent into a substantially L shape, and a drain pipe is provided under the drain pipe. The end surface is formed so as to extend in a substantially horizontal direction, the head part of the drain pipe divided into two parts is thick, and the inner and outer peripheral surfaces of the head part are tapered toward the upper end surface. A drain pipe for a motor, characterized in that a flange that can be easily inserted and removed is formed in a mounting hole of the main body with a stretchable material.