JP2016124459A - Box body of control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a box body of a control device which enables a worker to conduct repair work without removing the entire box body attached to the underfloor of a vehicle body in order to reduce the time needed for maintenance work of the box body of the control device that is attached to the underfloor of the vehicle body of a railway vehicle to be used.SOLUTION: In a box body of a control unit which is attached to a vehicle body underfloor space of a railway vehicle or the like to be used, the box body is formed divided into a ceiling wall part and a body part forming the other part. At least the ceiling wall part is formed by a material having high corrosion resistance. The body part is fastened to the ceiling wall part formed by the material having high corrosion resistance by fastening members such as screws to be integrally coupled thereto in a removable manner.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a box that houses a control device such as a power conversion device mounted on a railway vehicle or the like, and more particularly to a box of a control device that is mounted and used under the floor of a vehicle body.

  As a box that houses a control device such as a railway vehicle, a box as described in Patent Document 1 is conventionally known.

  FIG. 3 shows a configuration of a conventional box described in Patent Document 1. As shown in FIG.

  The box body 100 is formed in a box shape by fastening a ceiling plate 101, a bottom plate 102, and left and right side plates 103, 104, which are configured by combining metal plate materials, with fastening means 120 such as screws. In addition, partition plates 105 and 106 are interposed between the ceiling plate 101 and the bottom plate 102 to increase the strength of the box. Furthermore, the power converter 110 which comprises a control apparatus, such as a rail vehicle, is inserted and accommodated in the storage chamber 111 partitioned by the partition plates 105 and 106 of the box 100.

  In order to mount the box 100 under the vehicle body floor of a railway vehicle or the like, a fixture 150 is coupled to the outside of the ceiling plate 101, and fastening bolts are passed through the mounting holes of the fixture 150 to the vehicle floor under the vehicle floor. Fasten and secure.

Japanese Patent No. 4014794

  As described above, the box body 100 that houses the conventional control device is generally made of a steel material, but may be made of a light metal such as an aluminum alloy in applications that require weight reduction. The box 100 attached to the underside of the vehicle body floor of a railway vehicle is affected by corrosive substances such as iron powder and salt caused by the cleaning fluid and rain water of the vehicle body and brake shoes contained in the surrounding atmosphere.

  For this reason, when the box 100 is made of a steel material, the surface of the box is subjected to sufficient surface treatment such as painting to reduce the influence of corrosive substances such as salt. The possibility of corrosion of the box material from the deteriorated part of the coating film or the damaged part of the coating film due to stepping stones increases with time.

  For this reason, the box attached to the underbody floor of a railway vehicle or the like is actually used while undergoing maintenance for a long time until the vehicle reaches the end of its life, and whether or not corrosion has occurred is confirmed by periodic visual inspection. When work or corrosion is found, it is necessary to remove the corroded part or repair the paint.

  In this case, in particular, the box ceiling plate and the attachment to the vehicle body attached to the ceiling plate are located in a narrow space between the vehicle body mounting frame and the box ceiling plate. Because it is difficult, it must be inspected using special equipment such as a fiber scope, or the box body must be removed from the bottom of the car body floor, so the visual inspection work is not only complicated, but also requires time. .

  In addition, since it is difficult to perform repair work when the occurrence of corrosion is discovered while the box is attached to the bottom of the vehicle body floor, it is necessary to carry out the work by removing the box from the vehicle body.

  For this reason, conventionally, in addition to the method of protecting the surface of the material constituting the box body by painting or plating, the material constituting the box body is, for example, by using a high corrosion resistance material such as stainless steel. In order to solve the above-mentioned problems.

  However, in such a conventional problem solving method, in the case of surface treatment by plating or painting, as described above, the treatment film itself by plating or painting loses its protective function due to aging or external damage, leading to corrosion. The problem remains that it may be possible and cannot be completely removed.

  In addition, when the box is made of a highly corrosion-resistant material, the process cost is inferior compared to general materials such as steel, etc., and the material is expensive. There is.

  In addition, when the control device is a power converter, for example, when removing the box from the bottom of the vehicle body floor, it is necessary to disconnect the power wiring and control wiring from the outside, and to reconnect them for restoration. Electrical connection check and re-adjustment work are required, and a lot of time is required for other than repair.

  Thus, in the conventional apparatus, it has been a problem that a lot of time is required for the inspection work and the repair work performed to prevent the corrosion of the box in advance.

  Therefore, in order to reduce the time required for maintenance work such as visual inspection of the box of the control device mounted and used under the vehicle body floor of a railway vehicle or the like, the present invention removes the entire box body mounted under the vehicle body floor from the vehicle body. It is an object of the present invention to provide a box of a control device that can perform repair work without removing it.

  In order to solve the above-described problems, the present invention provides a box body for a control device that is mounted and used under the floor of a vehicle body such as a railway vehicle. The box body is divided into a top wall portion and other main body portions. At least the ceiling wall portion is made of a highly corrosion-resistant material, and the main body portion is fastened to the ceiling wall portion made of the highly corrosion-resistant material by a fastening member such as a screw so as to be detachably integrated. It is characterized by doing.

  In this invention, the said ceiling wall part can be comprised with a material with high corrosion resistance together with the fixture for attaching to the said vehicle body floor provided in the outer side. In this case, it is preferable that the ceiling wall portion and the fixture are integrally formed.

  Moreover, in this invention, the control apparatus etc. which were accommodated in the said box can be supported by the said ceiling wall part.

  Furthermore, in this invention, you may make it support the control apparatus etc. which were accommodated in the said box with the said main-body part.

  As the corrosion-resistant material, FRP (glass fiber reinforced plastic) can be used.

  According to the present invention, a box that is attached to a lower part of a vehicle body floor such as a railway vehicle, and that accommodates a control device or the like is configured such that the box attached to the vehicle body is detachably divided into a top wall portion and other main body portions, Since the ceiling wall is made of highly corrosion-resistant material, there is no risk of corrosion even if it is used for a long time, so it is possible to omit normal visual inspection of parts that are difficult to perform visual inspection. Thus, the maintenance burden can be reduced and the working time can be reduced. Further, the main body portion other than the ceiling wall portion of the box that can be easily visually inspected does not have to be made of an expensive and highly corrosion-resistant material, and thus can be made inexpensively.

1 is a longitudinal sectional view showing a configuration of a box of a control device according to a first embodiment of the present invention. The longitudinal cross-sectional view which shows the structure of the box of the control apparatus by 2nd Example of this invention. The perspective view which shows the external appearance of the box of the conventional control apparatus.

  Embodiments of the present invention will be described with reference to the embodiments shown in the drawings.

  FIG. 1 shows a first embodiment of the present invention.

  In FIG. 1, reference numeral 10 denotes a box of a control device that houses various control devices 20 therein. The box 10 is used by being attached to the bottom of a vehicle body such as a railway vehicle.

  The box body 10 is divided into a ceiling wall portion 11 and a main body portion 12 including other side wall portions and a bottom wall portion, and is integrally coupled so as to be detachable from each other. A fixture 13 for fixing the box 10 to the bottom of the vehicle body floor is fixedly provided on the ceiling wall portion 11. The box 10 is attached under the vehicle body floor by fastening the fixture 13 to an attachment frame 15 provided under the vehicle body floor using fastening means such as attachment bolts.

  The ceiling wall 10 and the fixture 13 of the box 10 are made of, for example, stainless steel that hardly corrodes even when exposed to corrosive liquids or gases, or a material having high corrosion resistance such as FRP (glass fiber reinforced plastic). To do. The main body 12 of the box 10 may be made of a material having high corrosion resistance like the ceiling wall 11, but in order to reduce the cost, it is made of a steel plate which is a general structural material. Also good.

  Various control devices 20 accommodated in the box body 10 are supported by the ceiling wall portion 11 via a support frame 21.

  A box body 10 having a closed inner chamber is configured by connecting and fixing a main body portion 12 constituted by a portion excluding the ceiling wall portion of the divided box body to the ceiling wall portion 11. The joint portion between the box body portion 12 and the ceiling wall portion 11 is waterproofed by inserting a seal in order to prevent intrusion of rainwater or the like. Thereby, the various control apparatuses 20 accommodated in the inner chamber of the box 10 can be completely protected from the external atmosphere.

  The box 10 of the control device mounted and used under the vehicle body floor according to the present invention is difficult to perform normal visual inspection by being placed in a narrow space close to the vehicle body floor when mounted on the vehicle body floor via the mounting frame 15. Since the ceiling wall portion 11 and the mounting portion 13 of the box body are made of a highly corrosion-resistant material, there is no risk of corrosion even when used for a long period of time. Can do.

  Even if the main body (side wall, bottom wall) 12 of the box is made of a material having low corrosion resistance such as a steel plate, visual inspection is easy. It can be easily found by visual inspection. And when generation | occurrence | production of corrosion is confirmed, the control apparatus 20 accommodated in the inside of the box 10 is left on the ceiling wall part 11, and only the main-body part 12 is removed from the ceiling wall part 11, and it can repair. it can. At this time, since the various control devices 20 can be repaired while being attached to the ceiling wall portion 11, it is not necessary to remove and reconnect the power wiring and control wiring of the control device. Therefore, the time required for repair work can be significantly shortened.

  In addition, when the ceiling wall part 11 is comprised with FRP, since it can manufacture by casting, it becomes easy to comprise the fixture 13 and this ceiling wall part 11 integrally.

  With this configuration, according to the present invention, the ceiling wall portion 11 and the fixture 13 that are difficult to visually inspect hardly corrode even when used for a long period of time, so that visual inspection of this portion is simplified. be able to. For this reason, the maintenance work is simplified and the maintenance time can be reduced.

  Since the visual inspection of the main body portion other than the ceiling wall portion 11 of the box body 10 is easy, this portion can be made of an inexpensive steel material that is not high in corrosion resistance, thereby reducing the manufacturing cost. be able to.

  FIG. 2 shows a second embodiment of the present invention.

  In the second embodiment, various control devices 20 accommodated in the box 10 are supported by the main body 12 via the support 21. For this reason, it is the same as the first embodiment except that the support body 21 supporting the various control devices 20 is fixed to the main body section 12, and the divided ceiling wall section 11 and other sections are arranged. A box body 10 is formed by integrally connecting the main body 12 to be configured.

  Also in the second embodiment, the ceiling wall 11 and the fixture 13 are made of a highly corrosion-resistant material, so that the visual inspection of the ceiling wall 11 and the fixture 13 that are difficult to visually inspect is simplified. However, since no particular problem occurs, maintenance work such as visual inspection is facilitated and maintenance time can be reduced.

  In this embodiment, in order to repair the main body portion 12, when the connection with the ceiling wall portion 11 is released and removed, the various control devices 20 housed inside are removed together. Sometimes, control equipment can be inspected.

10: Control device box 11: Ceiling wall 12: Main body (side wall, bottom wall)
13: Mounting tool 15: Mounting frame 20 under the vehicle body floor: Control device

Claims (6)

  In a box of a control device that is used under a vehicle body floor such as a railway vehicle, the box is divided into a top wall and other main body, and at least the ceiling wall is highly resistant to corrosion. A box body for a control device, wherein the box body is made of a material, and the body portion is fastened to a ceiling wall portion made of a material having high corrosion resistance by a fastening member such as a screw so as to be detachably integrated.   2. The box of the control device according to claim 1, wherein the ceiling wall portion is made of a highly corrosion-resistant material together with a fixture for attaching to the underside of the vehicle body floor provided outside the ceiling wall portion.   The box of the control device according to claim 2, wherein the ceiling wall portion and the fixture are integrally formed.   The control device box according to any one of claims 1 to 3, wherein the control device or the like housed in the box is supported by the ceiling wall portion.   The control device box according to any one of claims 1 to 3, wherein the control device or the like housed in the box is supported by the main body.   6. A box of a control device according to claim 1, wherein glass fiber reinforced plastic is used as the material having high corrosion resistance.

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