KR-102960078-B1 - Distribution Board with a Rotatable Transparent Viewing Window for Internal Inspection

Abstract

A distribution panel having a rotating viewing window structure for monitoring the interior according to the present invention comprises: a distribution panel (1); a viewing window installation hole (5) processed in the distribution panel door (3); and a rotating viewing window (W) installed in the viewing window installation hole (5), equipped with a thermal imaging camera (7) for acquiring a thermal image inside the distribution panel (1), transmitting infrared rays generated inside the distribution panel to the thermal imaging camera (7), and rotating along the thermal imaging camera (7). The rotating viewing window (W) comprises a spherical rotating sphere (11) that is fitted into the viewing window installation hole (5) and has a thermal imaging camera insertion hole (9) through which the thermal imaging camera (7) is fitted; and a front body housing (15) installed on the back of the distribution panel door (3) and has a first tapered hole (13) through which the tip of the rotating sphere (11) passes in the center. The distribution board includes a rear body housing (19) installed on the front of the distribution board door (3) and having a second tapered hole (17) penetrating the center so that the rear end of the rotating ball (11) passes through it; and a first fixing means (21) that fixes the front body housing (15) and the rear body housing (19) to prevent the rotating ball (11) inserted between the front body housing (15) and the rear body housing (19) from coming off. In the distribution board having a rotating viewing window structure for monitoring the interior according to the present invention, which is constructed in this way, when a thermal imaging camera (7) is inserted into the thermal imaging camera insertion hole (9) and the angle of the thermal imaging camera (7) is adjusted, the angle of the rotating ball (11) is adjusted along the thermal imaging camera (7), thereby allowing the angle of the thermal imaging camera (7) to be adjusted to a desired angle. Additionally, the thermal imaging camera (7) can capture a thermal image inside the distribution board (1) at a desired angle. Accordingly, the present invention can obtain a thermal image of a wider area within the distribution panel (1) through a single viewing window.

Inventors

• 홍춘근

Assignees

• (주)서전기전

Dates

Publication Date

20260507

Application Date

20250922

Claims (5)

1. Distribution board (1) and; A viewing window installation hole (5) machined in the above distribution panel door (3); and a thermal imaging camera (7) is installed in the above-mentioned viewing window installation hole (5) and is mounted to acquire a thermal image inside the distribution panel (1), and includes a rotating viewing window (W) that transmits infrared rays generated inside the distribution panel to the thermal imaging camera (7) and rotates along the thermal imaging camera (7). The above-mentioned rotating viewing window (W) is in the shape of a sphere and is fitted into the viewing window installation hole (5), and has a rotating sphere (11) through which a thermal imaging camera insertion hole (9) into which a thermal imaging camera (7) is fitted is penetrated; A front body housing (15) installed on the back of the above-mentioned switchboard door (3), with a first tapered hole (13) penetrating the center so that the tip of the above-mentioned rotary ball (11) passes through it; A rear main body housing (19) installed on the front of the above-mentioned distribution board door (3) and having a second tapered hole (17) penetrating through the center so that the rear end of the rotating ball (11) passes through it; and includes a first fixing means (21) that fixes the front body housing (15) and the rear body housing (19) so that the rotating ball (11) inserted between the front body housing (15) and the rear body housing (19) does not detach. A packing (23) is installed between the rear main body housing (19) and the front surface of the distribution board door (3) to prevent water or moisture from passing between the rear main body housing (19) and the front surface of the distribution board door (3). A lens (39) that transmits light is mounted on the tip of the thermal imaging camera insertion port (9). A front cover (41) is installed at the tip of the above-mentioned rotating ball (11) to fix the lens (39) to the tip of the thermal imaging camera insertion hole (9), and A light passage hole (43) is formed through the center of the front cover (41) to allow light generated inside the distribution board (1) to pass through, and A lens mounting groove (45) is machined at the rear edge of the light passage hole (43) so that the edge of the lens (39) can be fitted therein. A distribution board having a rotating viewing window structure for monitoring the interior, characterized in that a lens protection packing (47) is fitted between the edge of the lens (39) and the lens mounting groove (45).
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3. In Article 1, Two or more static friction force adjusting means (25) are installed on the side circumference of the rear main body housing (19) to elastically press the outer circumference of the rotating ball (11) to adjust the static friction force of the rotating ball (11). The above static friction force adjustment means (25) comprises a ball insertion hole (27) penetrating the side perimeter of the rear body housing (19); A ball (29) that is inserted into the ball insertion hole (27) and contacts the outer circumference of the rotating ball (11); A spring (31) that is fitted into the ball insertion hole (27) and uses elastic force to push the ball (29) toward the rotation hole (11); and includes a compression force adjusting means (33) that blocks the entrance of the ball insertion port (27) to prevent the ball (29) and spring (31) fitted into the ball insertion port (27) from coming out of the ball insertion port (27), and adjusts the static friction force of the rotating ball (11) by adjusting the force pressing the spring (31) toward the ball (29). An annular projection (35) is machined in the circumferential direction of the ball insertion opening (27) on the lower inner surface of the ball insertion opening (27) so as not to allow the ball (29) to escape into the second tapered hole (17) through the outlet of the ball insertion opening (27). A distribution board having a rotating viewing window structure for monitoring the interior, characterized in that the above-mentioned compression force adjustment means (33) is a headless bolt (37) screw-coupled to the inner circumference of the ball insertion hole (27).
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5. In Article 1, A rear cover (49) is installed at the rear of the above-mentioned rear main body housing (19) and covers the rear end of the externally exposed rotating ball (11). The above rear cover (49) is hinged to the rear main body housing (19) and is covered over the rear end of the rotating ball (11) or removed from the rear end of the rotating ball (11). On the front of the rear cover (49) facing the rear end of the above-mentioned rotary ball (11), a rotary ball rear end insertion hole (51) of a predetermined depth is machined so that the rear end of the rotary ball (11) is inserted, and It further includes a rear cover fixing means (53) for fixing the rear cover (49) to the rear main body housing (19), and The above rear cover fixing means (53) comprises an extension bar (55) extending from the rear of the rear body housing (19) to the rear of the rear body housing (19), and A distribution board having a rotating viewing window structure for monitoring the interior, characterized by including an extension bar fixing means (57) for fixing the rear cover (49) and the extension bar (55).

Description

Distribution Board with a Rotatable Transparent Viewing Window for Internal Inspection The present invention relates to a distribution panel having a rotating viewing window structure for monitoring the interior, and more specifically, to a viewing window installed on a distribution panel door to monitor the interior of the distribution panel, wherein, in particular, a thermal imaging camera may be mounted and may rotate together with the thermal imaging camera. Generally, the temperature environment is very important for power or industrial equipment installed inside switchboards. High-voltage circuit breakers or low-voltage circuit breakers are installed in the above distribution panel to protect load devices and circuits from overcurrent or abnormal current. The high-voltage or low-voltage circuit breakers in the above-mentioned distribution panel use busbars, which are conductive metal materials, for mutual electrical connection. There was a problem in that at the contact points between the circuit breaker and the busbar, or between busbars, contact resistance could increase or partial discharge could occur due to the bonding condition of the contact points, oxidation or corrosion of the contact points, or foreign substances within the contact points, and the increase in contact resistance could cause heat generation, potentially damaging the inside of the distribution panel. One method to solve the aforementioned problems is a method for a worker to monitor the inside of a distribution panel; however, since this method requires the worker to open the distribution panel door while the power is on to monitor the temperature or condition inside the panel, there was a risk of electrical accidents or electric shock to the worker. Accordingly, according to ICE regulations, the switchboard door cannot be opened when the electrically energized part inside the switchboard is in a live state. However, it is not feasible to turn off the power to the distribution panel just to monitor the inside. To solve the above problem, the "Viewing Window Structure for Monitoring the Interior of a Switchboard" under application number "10-2016-0086159" was filed and registered. The viewing window structure for monitoring the interior of the switchboard is an invention that allows a worker to visually observe the interior of the switchboard while monitoring the temperature inside the switchboard using an infrared thermal imaging camera. However, the aforementioned "viewing window structure for monitoring the interior of the distribution panel" had a limitation in that the angle of the thermal imaging camera could not be adjusted, so the area that could be monitored through the thermal imaging camera was very limited. Figure 1 is a drawing illustrating the present invention, Drawing 2 is a drawing showing a rotating viewing window installed on a distribution panel door, Drawing 3 is an exploded perspective view of a rotatable viewing window, Figure 4 is a drawing for explaining the components of a static friction force adjustment means, Drawing 5 is a cross-sectional view of the rotatable viewing window when the rear cover is closed, Drawing 6 is a cross-sectional view of the rotating viewing window when the rear cover is opened, Figure 7 is a drawing for sequentially explaining the operation process of the present invention. The present invention will be described in detail below with reference to the attached drawings. As shown in Drawings 1 to 5, a distribution board having a rotating viewing window structure for monitoring the interior according to the present invention comprises: a distribution board (1); a viewing window installation hole (5) processed in the distribution board door (3); and a rotating viewing window (W) installed in the viewing window installation hole (5), equipped with a thermal imaging camera (7) that acquires a thermal image inside the distribution board (1), transmits infrared rays generated inside the distribution board to the thermal imaging camera (7), and rotates along the thermal imaging camera (7). As shown in Drawings 3 to 6, the above-described rotating viewing window (W) comprises: a rotating ball (11) that is spherical in shape and inserted into the viewing window installation hole (5), and has a thermal imaging camera insertion hole (9) through which a thermal imaging camera (7) is inserted; a front body housing (15) installed on the back of the distribution board door (3) and has a first tapered hole (13) through which the front end of the rotating ball (11) passes through the center; a rear body housing (19) installed on the front of the distribution board door (3) and has a second tapered hole (17) through which the rear end of the rotating ball (11) passes through the center; and a first fixing means (21) that fixes the front body housing (15) and the rear body housing (19) so that the rotating ball (11) inserted between the front body housing (15) and the rear body housing (19) does