JPS639093Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a holding device for a thermal relay, and in particular aims to reduce the size of the holding device and improve insulation when two thermal relays are used.

As shown in FIGS. 1 and 2, a conventional holding device for a thermal relay includes a hermetic container 1, an airtight terminal 2 attached to the wall 1 of the container, and a device adjacent to the airtight terminal 2. two thermal relays 5 that can be brought into contact with the wall 1;
5, a holding plate 7' having fitting holes 9', 9' for holding the two thermal relays 5, 5, and a holding plate 7' that elastically supports the holding plate 7' and prevents the airtight terminals 2 and the two heat It consisted of a terminal fence 6 provided on the device wall 1 so as to surround the moving relays 5, 5.

In the holding device configured as described above, 2
The holding plate 7' that holds the thermal relays 5, 5 is
In order to comply with miniaturization of the holding device, it is arranged as necessary close to the airtight terminal 2, but if this arrangement position is too close, the holding plate 7' will be damaged when the holding plate 7' is attached. There was a risk that the edge 7'a on the airtight terminal 2 side and the pin portion 3 of the airtight terminal 2 would come into contact and cause insulation failure.

This proposal was made in view of these points, and 2.
A retaining plate that holds each thermal relay is provided with a relief portion for the airtight terminal, and a flange is formed along the relief portion.

The present invention will be explained below based on the embodiment shown in the drawings.

Reference numeral 1 denotes a closed container that houses a compressor main body (not shown) inside. Reference numeral 2 denotes an airtight terminal that is airtightly attached to the vessel wall 1, and is composed of three pin parts 3, 3, 3 and a main body 4 outside the vessel wall 1. Reference numerals 5 and 5 designate two thermal relays that can be brought into contact with the wall 1 in the vicinity of the airtight terminal 2. Reference numeral 6 denotes a terminal fence provided on the wall 1 so as to surround the airtight terminal 2 and the two thermal relays 5, 5. 7 elastically supports the engaging portions 8, 8 on the inner wall of the terminal fence 6, and holds the fitting holes 9, 9 of the thermal relays 5, 5, respectively, and the thermal relays 5, 5. This is a holding plate configured by integrally molding the relief portion 12 of the airtight terminal 2 having the protruding portions 10, 10 and the flange 11. In the thermal relay holding device configured as described above, the holding plate 7 that holds the two thermal relays 5 has a relief portion 12 formed in the center of the edge 7a on the airtight terminal 2 side. Therefore, the holding plate 7 can be brought closer to the airtight terminal 2 than in the past, making it possible to downsize the holding device. In addition, the holding plate 7
Since the flange 11 is formed along the relief part 12, when the retainer plate 7 is attached, the retainer plate 7 is attached to the airtight terminal by the flange 11 of the edge 7a on the airtight terminal 2 side. The holding plate 7 and the pin portion 3 of the airtight terminal 2 can be prevented from coming into contact with each other and causing poor insulation.

Further, A and B in FIG. 5 show other embodiments, in which the relief part 12 of the holding plate 7 is also provided at the edge 7b of the holding plate 7 facing the edge 7a on the airtight terminal 2 side. Since the shape of the retaining plate 7 can be made point symmetrical, the retaining plate 7 can be easily mounted.

The thermal relay holding device of the present invention includes an airtight container, an airtight terminal formed by a pin section attached to the wall of the container, and a main body, a terminal fence that surrounds this airtight terminal, and a terminal fence that holds the airtight container inside the fence. It consists of two cylindrical thermal relays that are in contact with each other and a holding plate that holds these two thermal relays, and a relief part for the airtight terminal is provided between the two thermal relays on this holding plate, In addition, since a flange portion facing the main body of the airtight terminal was formed along this relief portion, 2.
A relief part provided in the retaining plate between the thermal relays.
This thermal relay can be placed close to the hermetic terminal, the holding device can be made smaller, and the flange of the relief section provided opposite to the body of the hermetic terminal can be brought into contact with this body. Even if the thermal relay is brought close to the hermetic terminal, the holding plate can be prevented from coming into contact with the pin portion of the hermetic terminal.

[Brief explanation of the drawing]

1 and 2 are a front view and a side sectional view of a holding device showing a conventional example, and FIGS. 3 and 4 are a front view and a sectional view of the A-A section of a holding device showing an embodiment of the present invention. , A and B of FIG. 5 are a plan view and a front view of a retaining plate showing another embodiment. 1... Airtight container, 2... Airtight terminal, 5, 5...
Thermal relay, 7... Holding plate, 11... Flange,
12... Missing part.

Claims (1)

[Scope of utility model registration request] An airtight container, an airtight terminal formed by a pin part attached to the wall of the container, and a main body, a terminal fence surrounding this airtight terminal, and two cylindrical heat shields that come into contact with the airtight container within this fence. It consists of a dynamic relay and a holding plate that holds these two thermal relays, and this holding plate is provided with a relief part for the airtight terminal between the two thermal relays, and along this relief part. A holding device for a thermal relay, characterized in that a flange is formed facing the main body of an airtight terminal.