JP3163275U - Motor cooling fan operation check device - Google Patents

Abstract

An object of the present invention is to provide a fan for cooling a motor reliably from a remote location without requiring an explosion-proof structure because it can be easily installed without requiring a complicated and expensive device or a special installation place and does not use an electrical signal. Provided is a motor cooling fan operation confirmation device capable of confirming an operation state. A windmill is attached in the vicinity of a cooling exhaust hole of a cooling fan of a motor. [Selection] Figure 1

Description

The present invention relates to an operation confirmation device for a motor cooling fan that can be easily attached to the outside of a motor without using an expensive and complicated device and can reliably confirm an operation state from a remote position.

Conventionally, as a device for confirming the operation of fans, there is a device (Patent Document 1) or the like that performs operation confirmation by attaching a detection means for detecting a rotational drive state to a fan drive source and taking out an electrical signal from this detection means It has been.

Japanese Utility Model Publication No. 5-59174

However, according to the above-described method, a large number of complicated and expensive devices such as detectors, signal processors, indicators, and wiring associated therewith are necessary, and a place and an installation method for installing them must be considered. In addition, since electrical signals are used, in places where flammable gases such as chemical factories are handled, intrinsically safe explosion-proof structures are required for these devices, which further increases the cost of equipment and equipment installation. There has been a demand for the development of a simpler and less expensive device without using a target signal.

The present invention solves the above-mentioned problem, and attaches a windmill near the cooling air intake hole and / or near the exhaust hole of the motor cooling fan and at a position rotated by the wind generated by the cooling fan. This is an operation confirmation device for a motor cooling fan.

According to the motor cooling fan operation confirmation device of the present invention, it can be installed easily without requiring a complicated and expensive device or a special installation place, and does not require an explosion-proof structure because it does not use an electrical signal. The operating state of the motor cooling fan can be reliably confirmed from a remote position.

Usually, the motor 4 has a cooling fan 3, and the motor 4 has an intake hole 1 and an exhaust hole 2 for cooling air in order to allow air for cooling the motor to flow.

The intake hole 1 and the exhaust hole 2 may have any shape and size as long as the air flow is provided inside the motor 4.

The wind turbine 5 attached to the intake hole 1 may be of any material in any form as long as it is rotated by the wind generated from the intake hole 1. A material obtained by processing paper or plastic is more preferable because it is inexpensive and can be easily attached. Further, the attachment position may be any place as long as it is in the vicinity of the intake hole 1 and receives air generated from the intake hole 1.

The windmill 6 attached to the exhaust hole 2 may be made of any material in any form as long as it is rotated by the wind generated from the exhaust hole 2. A material obtained by processing paper or plastic is more preferable because it is inexpensive and can be easily attached. Further, the attachment position may be any location as long as it is in the vicinity of the exhaust hole 2 and receives the wind generated from the exhaust hole 2.

As described in detail above, by using the motor cooling fan operation check device of the present invention, it can be easily installed on the outside of the motor without the need for complicated and expensive devices or special installation locations, and at a remote location. The motor cooling fan operating status can be confirmed reliably.

1 is a front view of a specific example of a motor cooling fan operation confirmation device according to the present invention in which a wind turbine is attached to an exhaust hole side of cooling air. 1 is a side view of a specific example of a motor cooling fan operation confirmation device according to the present invention in which a windmill is attached to an exhaust hole side of cooling air. It is an overhead view of a motor part among the operation check devices of the fan for motor cooling of the present invention. FIG. 3 is a front view of a specific example of the motor cooling fan operation confirmation device according to the present invention in which a windmill is attached to the cooling air suction hole side.

An embodiment will be described below with reference to the accompanying drawings. The motor cooling fan operation checking device according to the present invention is, for example, as shown in FIG. 1, by attaching a windmill 6 in the vicinity of the cooling exhaust hole 2 of the cooling fan 3 of the motor 4. If the wind turbine 6 is operated, the wind turbine 6 rotates, so that the operation status of the motor cooling fan 3 can be confirmed.
Further, as shown in FIG. 4, by attaching a windmill 5 in the vicinity of the intake hole 1 of the cooling fan 3 of the motor 4, when the motor 4 cooling fan 3 is operated, the windmill 5 is rotated to rotate the motor cooling fan 3. The operating status can be confirmed.

1: Intake hole 2: Exhaust hole 3: Cooling fan 4: Motors 5, 6: Windmill

Claims (1)

An operation confirmation device for a motor cooling fan, characterized in that a windmill is mounted in the vicinity of an intake hole and / or an exhaust hole of a cooling air of a motor cooling fan, and at a position rotated by wind generated by the cooling fan.

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