JPH062975U - Electric motor - Google Patents

Abstract

(57) [Abstract] [Purpose] In an electric motor, the surface becomes hot due to the operation, and it visually indicates that the surface is hot and warns of danger due to contact. [Structure] A coating portion 31 made of reversible heat-sensitive paint and a coating portion 32 made of heat-sensitive paint different from the non-heat-sensitive paint or the coating portion 31 are provided on the surface of the electric motor. Since the coating color of the heat-sensitive paint changes depending on the temperature of the electric motor surface, the combination of the coating colors of the coating part 31 and the coating part 32 changes at high temperature and low temperature,
It expresses that the surface is hot and gives an alarm.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric motor.

[0002]

[Prior art]

 In conventional electric motors, heat-resistant paint or the like is uniformly applied to the surface of the electric motor, except for the spigot surface such as the mounting flange.

[0003]

[Problems to be solved by the device]

 Conventional motors have the drawback that the rise in surface temperature does not appear as a change in appearance, and the danger of contact with the human body or objects cannot be visually confirmed.

In view of the above, the present invention aims to make it possible to confirm a temperature rise on the surface of a motor as a change in appearance, thereby visually warning the operator of a danger of contact with a high temperature part and calling attention. It was done.

[0005]

[Means for Solving the Problems]

 In the invention of claim 1, the surface of the main body of the electric motor is coated with the reversible heat-sensitive paint.

According to the second aspect of the present invention, the reversible heat-sensitive paint is applied only to a portion of the surface of the electric motor where the surface temperature rises the most and is dangerous when contacting at high temperature.

According to the third aspect of the present invention, a plurality of types of reversible heat-sensitive paints are applied or a combination of reversible heat-sensitive paints and non-heat-sensitive paints is used so that the pattern on the surface of the electric motor is changed between low temperature and high temperature. Paint the surface of the motor.

[0008]

In the electric motor according to the first and second aspects of the present invention, the portion to which the reversible heat-sensitive paint has been applied is discolored due to the temperature rise, and the fact that the electric motor surface is hot is warned.

In the electric motor according to the third aspect of the present invention, due to the discoloration of the heat-sensitive paint, the combination of colors forming the surface pattern due to coating changes at low temperature and high temperature, and the electric motor surface becomes hot. Is visually emphasized to further draw attention compared to the electric motor according to claim 1 or 2.

[0010]

【Example】

 As shown in FIG. 1, the electric motor according to the invention of claim 1 is one in which a reversible heat-sensitive paint is uniformly applied to the surface of the main body.

FIG. 1 shows an example of an electric motor according to the invention of claim 2. Reference numeral 11 is a coated portion of the reversible heat-sensitive paint.

FIG. 2 is an example of a coating pattern of an electric motor according to the invention of claim 3. As shown in FIG. 2, different colors are alternately arranged in diagonal lines. For example, 21 is a white non-thermosensitive coating, and 22 is a reversible heat-sensitive coating that changes color from blue at room temperature to red at high temperature.

Further, in FIG. 2, the color combination may be other than the above-mentioned combination, or the pattern may be constituted by only plural kinds of heat-sensitive paints.

[0014]

[Effect of device]

 As described above, according to the invention of claim 1 or 2, it is possible to visually confirm the rise of the surface temperature by using the heat-sensitive paint for the coating of the surface of the electric motor, and it is possible to check the high temperature part. It is possible to call attention in advance to the danger of contact with the human body or objects. Further, according to the invention of claim 3, compared with the electric motor according to the invention of claim 1 or 2, it is possible to call more attention.

[Brief description of drawings]

1 is a diagram showing an example of an electric motor according to the invention of claim 1;

FIG. 2 is a diagram showing an example of an electric motor according to the invention of claim 2;

FIG. 3 is a diagram showing an example of a pattern formed on the surface of an electric motor according to the invention of claim 3;

FIG. 4 is a diagram showing an example of a conventional electric motor.

[Explanation of symbols]

11 Painted part with reversible heat-sensitive paint. 21 Painted with reversible heat-sensitive paint. 31 Painted with reversible heat-sensitive paint. 32 Painted with reversible heat-sensitive paint or non-heat-sensitive paint. 41 Painted with conventional heat-resistant paint.

Claims (3)

[Scope of utility model registration request] 1. An electric motor in which a reversible heat-sensitive paint is uniformly applied to the surface of a main body. 2. An electric motor in which a reversible heat-sensitive paint is applied to a portion of the surface of the electric motor which becomes hot during operation. 3. An electric motor coated with a plurality of reversible heat-sensitive paints or a reversible heat-sensitive paint and a non-heat-sensitive paint, and painting so as to form a pattern with different color combinations at low temperature and at high temperature.