relay
A relay and top plate technology, applied in the direction of relays, electromagnetic relays, detailed information of electromagnetic relays, etc., can solve the problems of different configuration relations of relays, inability to obtain visual recognition, blocking light-emitting points, etc., so that visual recognition is not easy to deteriorate , Good effect of visual recognition
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Embodiment approach 1
[0075] Below, refer to Figure 4-Figure 8 The relay according to Embodiment 1 of the present invention will be described. Figure 4 It is a partially exploded perspective view showing the relay 31 according to Embodiment 1 of the present invention. Figure 5 is a sectional view of the relay 31 . Figure 6A It is a perspective view showing the optical pattern provided on the inner surface of the case 34 b of the relay 31 . Figure 6B It is the figure (photograph) which looked at the upper surface of the case 34b of the relay 31 from the oblique direction. Figure 7 as well as Figure 8 It is an explanatory diagram of the action of the relay 31.
[0076] The relay 31 includes a relay main body 32 and an operation display lamp 33 built in a case 34 . The case 34 has a base 34a formed of an opaque resin and a case 34b formed of a transparent resin.
[0077] On the upper surface of the base 34a has Figure 4 as well as Figure 5 Relay body 32 of the shown configuration. Th...
Embodiment approach 2
[0104] Figure 15 It is a schematic sectional view showing the relay 61 according to Embodiment 2 of the invention. In this relay 61 , various optical patterns are provided in the optical pattern area 36 . In the illustrated example, two types of optical patterns 37 and 62 are provided. The optical pattern 37 is similar to the optical pattern 37 described in Embodiment 1, and reflects the light guided in the top plate 40a upward. The optical pattern 62 reflects the light guided in the top plate 40 a to the side obliquely, that is, in a direction having a small angle with respect to the horizontal plane. Both the optical pattern 37 and the optical pattern 62 are, for example, triangular prisms or pyramidal prisms, and the inclination angles of the inclined surfaces are different from each other. Others are the same as in Embodiment 1, so the same components are given the same reference numerals and descriptions thereof are omitted (the same applies to Embodiments after Embod...
Embodiment approach 3
[0107] Figure 17 It is a schematic cross-sectional view showing a relay 71 according to Embodiment 3 of the present invention. In this relay 71, a light guide plate 72 serving as a light guide path is arranged directly under the top plate 40a of the case 34b. The corners of the light guide plate 72 are obliquely cut to form the light incident surface 73 . The operation display lamp 33 is arranged at a position facing the light incident surface 73 . On the lower surface of the light guide plate 72, a plurality of optical patterns 37 are formed in an arc shape centering on the incident position of light on the optical pattern area 36 (refer to Figure 6A ), the optical pattern 37 is in the shape of a prism.
[0108] And, in this relay 71, when the light emitted from the operation display lamp 33 enters the light guide plate 72 from the light incident surface 73, the light entering the light guide plate 72 is reflected by the upper surface and the lower surface of the light g...
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