JPH0643712U - Semiconductor power converter storage board - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the safety of maintenance and inspection and replacement, to facilitate the work, and to reduce the space on the front side of the panel. A main body device housed in a board body 9, an opening 16 formed in a front plate 11 of the board body 9, a door 17 pivotally supported by a lower edge of the opening 16 and opened horizontally, and a board. Body 9
A support plate 25 provided inside and continuous to the lower edge of the opening 16;
A trolley 30 placed on the support plate 25 and movably provided on the back surface of the door 17, a socket 33 installed on the trolley 30 and connected to a main device, and a trolley device detachably attached to the socket 33. With.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a semiconductor power conversion device storage board that is designed to make maintenance work safe.

[0002]

[Prior art]

 Generally, the main circuit of a high frequency power supply device of a semiconductor power conversion device is configured as shown in FIG. 4, in which 1 is an AC input part, 2 is a current transformer, 3 is a rectifier, and 4 is a direct current reactor. Reference numeral 5 is an inverter device, 6 is a filter circuit, 7 is a control circuit, and 8 is an output section. The ones that are frequently inspected and replaced are the printed circuit board of the control circuit 7 and the electrolytic capacitor in the inverter device 5. Yes, other equipment should be inspected at intervals of 1 to 5 years. In addition, the storage board of the conventional semiconductor power conversion device has a door structure on the entire front surface of the storage board in order to perform maintenance and inspection of various devices in the board.

[0003]

[Problems to be solved by the device]

 In the case of the conventional storage cabinet, since the entire front surface has a door structure, all the front doors are opened during maintenance and inspection, and unnecessary equipment for maintenance and inspection is exposed. When performing work, there is a problem that it is extremely dangerous and the door is large, so a large space for opening the door is required on the front side of the panel. In consideration of the above points, the present invention improves the safety of maintenance inspection, facilitates maintenance inspection and replacement work, and reduces the space on the front side of the board. The purpose is to provide.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a semiconductor power conversion device storage board according to the present invention includes a main body device housed in a board body, an opening formed in a front plate of the board body, and a pivotal support at a lower edge of the opening. And a door that is opened horizontally, a support plate that is provided in the panel body and that is continuous with the lower edge of the opening, a dolly that is placed on the support plate and movably provided on the back surface of the door, and a dolly It is equipped with a socket that is installed in the main body and is connected to the main device, and a bogie device that is detachably attached to the socket.

[0005]

[Action]

 In the semiconductor power conversion device storage board of the present invention having the above-described structure, a horizontally opened door is pivotally supported by an opening formed in the front plate of the board body, and a trolley of a support plate in the board body. It is movable on the back side of the open door, and the dolly has a socket connected to the main equipment. The dolly equipment, that is, equipment that is frequently inspected and replaced, is detachably attached to the socket. Therefore, for maintenance and inspection, it is sufficient to open the door with a relatively small opening and pull out the trolley for inspection.Other devices are not exposed, there is no danger even when the power is on, and safety is improved. It is easy to inspect and replace, does not require a lifter and a horizontal stand for pulling out equipment as in the past, and reduces the space on the front side of the board.

[0006]

【Example】

 One embodiment will be described with reference to FIGS. 1 to 3. In these figures, 9 is the main body of the storage board, 10, 11 and 12 are the ceiling board, front board, side board of the board body 9, and 13 is a plurality of measurement / controls arranged in parallel on the front board 11. -It is a display unit that has a display unit 14, operation buttons 15, etc. on the surface, and is equipped with signal processing equipment inside.

Reference numeral 16 is an opening formed on both sides of the lower part of the front plate 11, and 17 is a door pivotally supported by a hinge 18 at the lower edge of the opening 16, which closes the opening 16 and opens horizontally. Be touched. Reference numeral 19 is a shaft mounting plate fixed to the frame body 20 of the board body 9 on both sides of the opening 16, 21 is an upper supporting rod whose upper end is pivotally supported by the shaft mounting plate 19, and 22 is an upper supporting rod being at the lower end of the upper supporting rod 21. It is a lower support rod which is pivotally supported and whose lower end is pivotally supported in the middle of the side portion of the door 17, and both support rods 21 and 22 hold the door 17 horizontally when opened. Reference numeral 23 is an opening / closing handle provided on the upper portion of the door 17, and 24 is an opening / closing arm integrally provided on the handle 22, which is locked to the frame body 20 and maintains the closed state of the door 17.

Reference numeral 25 is a support plate provided in the board main body 9 and fixed to the frame body 20, the front edge of which is connected to the lower edge of the opening 16, and 26 is a support piece 27 provided upright on the rear edge of the support plate 25. A reference numeral 28 indicates a cushion fixed to the main body rail 28, a reference numeral 28 indicates a main body rail laid on the support plate 25, and a reference numeral 29 indicates a door rail laid on the back surface of the door 17 and continuous with the main body rail 28.

Reference numeral 30 denotes a box-shaped cart having wheels 31 mounted on the main body rail 28 and having an open upper portion, and is movable on the main body rail 28 and the door rail 29 of the open door 17. . Reference numeral 32 is a pull-out handle provided on the front surface of the carriage 30, 33 is a socket installed on the carriage 30, one carriage 30 is provided with a socket (not shown) for the printed circuit board 34, and the other carriage is provided. 30 is provided with a socket 33 for an electrolytic capacitor 35, a printed circuit board 34 and an electrolytic capacitor 35 are respectively housed in both trolleys 30, and connected to the respective sockets 33, a trolley device such as a printed circuit board 34 and an electrolytic capacitor 35. Is a device that is frequently inspected and replaced.

Reference numeral 36 denotes a dolly connector connected to the socket 33 and led out from the rear surface of the dolly 17, and 37 denotes a main body connector connected to one end of a cable 38 in the board main body 9, which is connected to the dolly connector 36 and connected to the cable 38. The other end of is connected to the main unit that is infrequently inspected.

The opening / closing arm 24 is disengaged from the frame body 20 by operating the opening / closing handle 23, and the door 17 is pulled forward, whereby the upper and lower support rods 21 and 22 extend and the door 17 moves horizontally. Retained. In this state, the trolley 30 is pulled out from the main body rail 28 onto the door rail 29 by the pulling handle 32, and maintenance work and replacement of the printed circuit board 34 or the electrolytic capacitor 35 in the trolley 30 are performed.

[0012]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. In the semiconductor power conversion device storage board of the present invention, a door 17 that is opened horizontally is pivotally supported at an opening 16 formed in the front plate 11 of the board body 9, and a trolley of a support plate 25 in the board body 9 is carried. 30 is freely movable on the back side of the door 17 that is open, and a dolly 30 is provided with a socket 33 connected to the main body device, and the dolly device, that is, a device with a high frequency of maintenance inspection and replacement, is installed in the socket 33. Since it is detachably attached, at the time of maintenance and inspection, it suffices to open the relatively small door 17 of the opening 16 and pull out the trolley 30 for maintenance and inspection, and other equipment is exposed. In addition, there is no danger even in the energized state, safety can be improved, inspection and replacement work is easy, and there is no need for a conventional lifter and horizontal base for pulling out equipment, and The space on the front side of the board can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a side view of a part of FIG. 1 in another state.

FIG. 3 is a plan view of FIG.

FIG. 4 is a main circuit diagram of a high frequency power supply device.

[Explanation of symbols]

 9 panel body 11 front plate 16 opening 17 door 25 support plate 30 trolley 33 socket

Claims (1)

[Scope of utility model registration request] 1. A main body device housed in a board main body, an opening formed in a front plate of the board main body, a door pivotally supported by a lower edge of the opening and horizontally opened, and the board main body. A support plate provided inside the opening and continuous to the lower edge of the opening, a dolly placed on the support plate and movably provided on the back surface of the door, and installed on the dolly and connected to the main device A semiconductor power conversion device storage board comprising a socket and a bogie device detachably attached to the socket.