Indicating structure for displaying three-station opening and closing process of combined electric appliance

Abstract

The utility model belongs to the technical field of combined electric appliances, and particularly relates to an indicating structure for displaying three-station opening and closing processes of a combined electric appliance. The indicating structure for displaying the three-station opening and closing process of the combined electric appliance comprises a shell, a movable contact seat installed in the shell, a movable contact installed on the movable contact seat and a static contact seat arranged on the outer side of the movable contact, and is characterized in that an observation window for installing glass is arranged on the shell, a camera is arranged on the outer side of the observation window, a long-strip-shaped groove is formed in the movable contact, and the static contact seat is arranged in the long-strip-shaped groove. An opening and closing scale is arranged in the long-strip-shaped groove, and the opening and closing scale is composed of a connection section, a closing position section and a disconnection section. The beneficial effects of the utility model are that under the condition that the through-current capability of the switch is not changed, the problem that the combined electric appliance can not visually judge the moving direction and the motion process of the contact in an intelligent monitoring video is solved, and the structure is visual and reliable, and is easy to observe and judge.

Description

Technical Field

[0001] This utility model belongs to the field of combined electrical appliances technology, and specifically relates to an indicator structure for displaying the opening and closing process of three working positions in a combined electrical appliance. Background Technology

[0002] In the entire power system, with the continuous improvement of intelligent monitoring technology, it is now possible to observe the position of contacts sealed in SF6 gas chambers (or other environmentally friendly mixed gases) via cameras, rather than judging the open / closed state of the contacts in the sealed gas chamber through the position of the transmission device (mechanism position) or, more indirectly, through secondary circuits. To ensure consistency between the mechanism and the contact state, a dual confirmation circuit has been designed, but these are all indirect judgments, while directly observing the contact position is certainly more accurate. When monitoring the contact position via video, it is very easy to distinguish between the two static states (or final states) of open and closed. However, during movement, the contacts are blocked by a shield, and the image at the video interruption point appears static, making it impossible to determine whether it is an opening or closing process from the video. Even if it is known to be an opening process based on the command, it is still impossible to directly determine which position it has reached or how far it is from the fully open switch. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides an indicator structure for displaying the opening and closing process of three working positions in a combined electrical appliance.

[0004] This utility model is achieved through the following technical solution:

[0005] An indicator structure for displaying the opening and closing process of a three-position switch in a combined electrical appliance includes a housing, a movable contact seat installed inside the housing, a movable contact mounted on the movable contact seat, and a stationary contact seat provided outside the movable contact. The housing is characterized by having an observation window with glass mounted on it, a camera mounted outside the observation window, and an elongated groove on the movable contact. An opening and closing scale is arranged within the elongated groove, and the scale consists of a connecting section, a closing position section, and a disconnecting section.

[0006] The observation window is located at the break point between the moving contact and the stationary contact seat inside the housing.

[0007] The beneficial effects of this utility model are: while ensuring that the current carrying capacity of the switch remains unchanged, it solves the problem that the movement of the contacts and the process of the action cannot be intuitively judged in the intelligent monitoring video of the combined electrical appliance. This structural form is intuitive, reliable, and easy to observe and judge. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings.

[0009] Appendix Figure 1 This is a schematic diagram of the main structure of this utility model;

[0010] Appendix Figure 2 This is a side view of the structure of this utility model;

[0011] Appendix Figure 3 This is a schematic diagram of the closed state of this utility model;

[0012] Appendix Figure 4 This is a schematic diagram of the open circuit state of this utility model;

[0013] Appendix Figure 5 This is a schematic diagram of the split-and-join scale structure of this utility model;

[0014] In the diagram, 1 is the housing, 2 is the moving contact seat, 3 is the moving contact, 4 is the stationary contact seat, 5 is the observation window, 6 is the camera, 7 is the long groove, 8 is the opening / closing scale, 9 is the closing section, 10 is the closing position section, and 11 is the opening section. Detailed Implementation

[0015] The attached figure shows a specific embodiment of this utility model. This embodiment includes a housing 1, a moving contact seat 2 installed inside the housing 1, a moving contact 3 installed on the moving contact seat 2, a stationary contact seat 4 located outside the moving contact 3, an observation window 5 with glass mounted on the housing 1, a camera 6 located outside the observation window 5, an elongated groove 7 on the moving contact 3, and a switching scale 8 arranged within the elongated groove 7. The switching scale 8 consists of a connecting section 9, a closing position section 10, and a disconnecting section 11. The observation window 5 is located at the break point between the moving contact 3 and the stationary contact seat 4 inside the housing 1.

[0016] The indicator structure of this utility model for displaying the opening and closing process of three working positions in combined electrical appliances allows the camera 6 to directly observe the opening and closing status of the contacts through the observation window 5 on the housing 1. However, since the moving contact 3 enters the stationary contact seat 4, the relative position between the moving contact 3 and the stationary contact seat 4 can be observed by observing the movement direction and position of the closing position section 10 in the middle of the opening and closing scale 8, thus determining whether the switch contacts are in the correct position.

[0017] The elongated groove 7 is extremely small. After placing the opening / closing scale 8, it does not affect the movement of the moving contact 3 or the closing connection. The moving contact 3 has small scales. The opening / closing scale 8 is colored in segments: the connecting segment 9 is green, the closing segment 10 is black as a video observation reference point, and the disconnecting segment 11 is red. The observation window 5 is located at the break point of the switch contact inside the housing 1, which facilitates observation of the moving contact 3 moving in a straight line and opening / closing with the stationary contact 4.

[0018] The indicator structure of this utility model for displaying the opening and closing process of three working positions of combined electrical appliances solves the problems of intelligent stations, video monitoring, and difficulty in judging the position of isolation / grounding contacts, and whether the opening and closing are in place. In particular, during the operation, it can accurately judge whether the contact is in the opening or closing process without waiting for the final state of the contact. This structure is intuitive, accurate and easy to judge, and facilitates the early detection of faults.

Claims

1. An indicator structure for displaying the opening and closing process of a three-position combination appliance, comprising a housing (1), a movable contact seat (2) installed inside the housing (1), a movable contact (3) installed on the movable contact seat (2), and a stationary contact seat (4) provided outside the movable contact (3), characterized in that: The housing (1) is provided with an observation window (5) with glass installed. A camera (6) is provided on the outside of the observation window (5). A long groove (7) is opened on the moving contact (3). A split-opening scale (8) is arranged in the long groove (7). The split-opening scale (8) is composed of a connecting section (9), a closing position section (10), and a disconnecting section (11).

2. The indicator structure for displaying the three-station operation process of a combined electrical appliance according to claim 1, characterized in that: The observation window (5) is located at the break point between the moving contact (3) and the stationary contact (4) inside the housing (1).

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