TWI659871B - Control box of rail vehicle and assembly method thereof - Google Patents

Abstract

The control box according to the embodiment includes a box frame, a partition member, a support plate, and an electric wire. The box frame houses an electronic device and forms an opening. The partition member partitions a space in the box frame. The partition member is formed at a position corresponding to the position of the opening portion and forms a recessed portion. The support plate supports the electric wires. The support plate is fitted into the opening. The electric wire is supported by the support plate, passes through the recessed portion, and is connected to the electronic device housed in at least one of the spaces partitioned by the partition member.

Description

Control box of rail vehicle and assembly method thereof

Embodiments of the present invention relate to a control box of a rail vehicle and an assembly method thereof.

Rail vehicles are equipped with electric wires connected to electronic devices. This electric wire is fixed to a part of the box frame in order to prevent damage due to vibration of the vehicle. It is assumed that when the work of fixing electric wires is performed inside the box frame, there are also many fixed places with narrow working space. For this reason, conventionally, an electric wire is fixed to an electric wire fixture, and the fixed electric wire fixture is attached to a housing. However, when the space in the housing is partitioned by the partition member, it is difficult to perform the operation of wiring the electric wires fixed to the electric wire fixing portions across the spaces. As such a creation, there is Japanese Laid-Open Patent Publication, Japanese Patent Application Laid-Open No. 6-178411 (hereinafter, referred to as Patent Document 1).

The problem to be solved by the present invention is to provide a control box for a rail vehicle and an assembly method thereof, which can reduce the workload of wiring.

The control box according to the embodiment includes a box frame, a partition member, a support plate, and an electric wire. The box frame contains an electronic device and has an opening. The partition member partitions a space in the box frame. The partition member is formed at a position corresponding to the position of the opening portion and forms a recessed portion. The support plate supports the electric wires. The support plate is fitted into the opening. The electric wire is supported by the support plate, passes through the recessed portion, and is connected to the electronic device housed in at least one of the spaces partitioned by the partition member.

Hereinafter, the control box and the method of assembling the control box according to the embodiment will be described with reference to the drawings.

FIG. 1 is a schematic view of a rail vehicle 1 equipped with a control box 10 according to an embodiment, as viewed from the side. The control box 10 is arranged, for example, on the bottom 1 a of the rail vehicle 1. The power collection device 2 supplies power from an overhead line to the control box 10. The control box 10 houses, for example, a power conversion unit and a control unit (not shown). The power conversion unit includes, for example, a semiconductor element constituting an inverter, and a switching circuit that controls the switching of the semiconductor element. From the control unit, a torque command value indicating the traction torque generated by the traveling motor 3 is supplied to the power conversion unit. The power conversion unit converts the power supplied from the power collection device 2 to the AC power for driving the electric motor and supplies it to the walking motor 3 by switching control of the semiconductor element according to the torque command value. After this, the control box 10 causes the traveling motor 3 to generate a torque, and causes the rail vehicle 1 to travel in the arrow direction (X direction).

Next, the structure of the control box 10 is demonstrated. FIG. 2 is a diagram for explaining the configuration of the control box 10 according to the embodiment. The control box 10 includes, for example, a box frame 100, an electronic device 120, a partition member 140, a support plate 160, and an electric wire 180.

The box frame 100 is formed of a metal such as iron or a stainless material, aluminum, or an aluminum alloy. The box frame 100 houses an electronic device 120. An opening 101 is formed in the box frame 100. A support plate 160a described later is fitted in the opening 101. In addition, in the box frame 100, lid bodies 100a and 100b are formed. When the operator performs installation of the electronic device 120, wiring work of the electric wire 180, maintenance work, and the like in the box frame 100, the workers open the covers 100a and 100b to perform the work.

The electronic device 120 is, for example, a power supply device, an inverter, a control device, or the like. The partition member 140 is a space in the partition box frame 100. In FIG. 2, in the box frame 100, four spaces 102 a to 102 d are formed by two partition members 140 a and 140 b. The electronic device 120a is housed in the space 102a. The electronic devices 120b and 120c are housed in the space 102b. The electronic device 120d is housed in the space 102c. In the space 102d, a terminal 103 is provided which can be connected to an electric wire outside the box frame 100. Further, in at least one of the spaces 102a to 102d, a supporting portion 160a or a supporting plate 160b is attached to the projection portion of the box frame 100 or the partition member 140 by fastening members such as screws or bolts. 104, 105.

Further, in the partition members 140a and 140b, recessed portions 142a and 142b are formed at positions corresponding to the positions of the openings 101. The recesses 142a and 142b allow the electric wire 180 supported at least on the support plate 160 to pass from one space to the other space. The partition member 140 may be screwed or welded to the inside of the box frame 100, for example.

The support plate 160 supports the electric wires 180. The specific structure of the support plate 160 and the method of supporting the electric wire 180 will be described later. In addition, the support plate 160 is attached to the box frame 100 from the outside of the box frame 100 by screws, bolts, or the like in a state of being fitted into the opening 101. When the control box 10 includes a plurality of support plates 160, one of which is embedded in the opening 101, and the remaining support plate 160 may be attached to the inner wall of the box frame 100 or the partition member 140.

In FIG. 2, the control box 10 includes support plates 160 a and 160 b. The support plate 160a is embedded and fixed to the opening portion 101, and the support plate 160b is fastened to the convex portion 104 by screws.

When the box frame 100 has two openings 101, the support plate 160 may be fitted into each of the openings 101.

The support plate 160 is formed of, for example, aluminum or an aluminum alloy. As a result, electromagnetic noise emitted from the inside of the box frame 100 through the support plate 160 to the lower side can be shielded. Therefore, it is possible to suppress adverse effects on, for example, ground equipment grounded near a fixed road. Moreover, compared with the case where the support plate 160 is formed using iron or a stainless material, it is possible to reduce the weight, and it is possible to reduce the burden on the operator who fits into the opening 101. Moreover, it is also possible to form the support plate 160 with iron or a stainless material.

The electric wire 180 is supported by the support plate 160. The electric wire 180 is connected to, for example, an electronic device 120, a connector, or a terminal 103 accommodated in at least one of the spaces 102a to 102d in the box frame 100 divided by the partition members 140a and 140b. .

In FIG. 2, for example, the electric wire 180 is connected to the electronic device 120a in the space 102a, and is also connected to the terminal 103 in the space 102d. The electric wire 180 is connected to the electronic devices 120b and 120c in the space 102b, and is also connected to the electronic device 120d in the space 102c.

Next, a specific configuration of the support plate 160 and a method of supporting the electric wire 180 will be described with reference to the drawings. FIG. 3 is a diagram for explaining the configuration of the support plate 160 according to the embodiment. The support plate 160a fitted into the opening 101 includes, for example, a mounting portion 162, an elastic member 164, a bifurcated coupling terminal 166, a flat plate support 168, a columnar support 170, and a ground base 172.

The mounting portion 162 is a member for mounting the support plate 160 a to the convex portion 105 of the box frame 100 in a state where the support plate 160 a is fitted into the opening portion 101 of the box frame 100. The mounting portion 162 is formed of, for example, the same metal as the support plate 160a. The mounting portion 162 is formed with a hole portion 162a through which a shaft portion of a screw or bolt passes.

The elastic member 164 is attached to a contact portion between the support plate 160a and the box frame 100 when the support plate 160a is fitted into the opening portion 101. In FIG. 3, an elastic member 164 is attached to an outer peripheral portion of the support plate 160a. The elastic member 164 is attached to the surface of the support plate 160a with an adhesive, for example. In addition, the elastic member 164 may be mounted as a receiving portion of a recessed type formed in an outer peripheral portion of the support plate 160.

After this, when the support plate 160 a is fitted into the opening 101 and fixed, the elastic member 164 is pressed by the bottom surface of the box frame 100. For this reason, a substance such as a gas or a liquid is prevented from flowing between the opening 101 and the support plate 160a.

The branching connection terminal 166 is a terminal for branching the electric wire 180 into a plurality of wires, or for connecting the plurality of electric wires 180. For example, the bifurcated coupling terminal 166 distributes the current obtained from the electric wire 180 to a plurality of electric wires 180. Further, the branch connection terminal 166 combines the currents obtained from the plurality of electric wires and flows the electric current into one electric wire 180. In this way, in order to install the bifurcated coupling terminal 166 to the support plate 160a, the operator may install the bifurcated connection terminal 166 in the form of a bifurcated or bonded wire 180 before inserting the support plate 160a into the opening 101 of the box frame 100. Support plate 160a. Therefore, the work after attaching the support plate 160a to the box frame 100 can be reduced, and the work efficiency of the entire assembly operation of the control box 10 can be improved.

The plate support 168 supports at least one electric wire 180. The plate supporter 168 forms a mounting surface of the electric wire 180 further away from the support plate 160a. The worker arranges the electric wires 180 to be supported on the mounting surface, and fixes the electric wires 180 with a band 174 having a gap formed by moving the mounting surface further away from the support plate 160a. As a result, the electric wire 180 is held by the flat support 168.

The columnar supporter 170 supports at least one electric wire 180. The columnar supporter 170 is, for example, a columnar member in a U-shape, and is mounted so as to extend from the mounting surface of the electric wire 180 in the support plate 160a to a position separated only by a specific distance.

FIG. 4 is a diagram for explaining a first example of the configuration of the columnar supporter 170. The columnar supporter 170 is attached to the support plate 160a by, for example, an attachment member 170a. The attachment member 170 a may be formed integrally with the columnar support 170. A plurality of slits 170b are formed in the columnar support 170. The worker arranges the electric wires 180 to be supported, and fixes the electric wires 180 with a band 174 passing through the slit 170b. As a result, the electric wire 180 is held by the columnar support 170. With the columnar support 170, for example, even when the electronic device 120 is installed at a position away from the bottom surface of the box frame 100, it can be routed to the vicinity of the electronic device 120 while supporting the electric wire 180. Therefore, the space 102 in the box frame 100 can be effectively utilized.

Further, the mounting member 170a may be provided with a hinge portion 170aa that can incline the columnar support 170 toward the mounting surface of the electric wire 180 in the support plate 160a. As a result, the operator is not hindered when carrying the support plate 160a on which the columnar supporter 170 is mounted, and when the support plate 160a is embedded in the opening 101, it is possible to prevent contact with the electronics in the box frame 100 Machine 120 or dividing member 140. For this reason, the operator can improve the work efficiency of assembling the control box 10.

FIG. 5 is a diagram for explaining a second type example of the columnar supporter 170. The columnar support 170c of the second embodiment is provided with a mechanism for adjusting the extended length. Specifically, the columnar supporter 170c includes, for example, a first columnar supporter 170ca and a second columnar supporter 170cb. The second columnar support 170cb is formed so as to be able to slide up and down inside the first columnar support 170ca. A plurality of opening holes 170d are formed in the first columnar supporter 170ca, and a projection 170e inserted into the opening hole 170d is provided in the second columnar supporter 170cb. The worker slides the second columnar supporter 170cb, and inserts the protruding portion 170e into the opening hole 170d at the position to be fixed, thereby fixing the second columnar supporter 170cb. With this, the extension length of the columnar supporter 170c can be adjusted. Therefore, the operator can adjust the extended length of the columnar support 170c to an appropriate length in accordance with the position of the electronic device 120.

The ground base 172 is connected to a ground wire of a shielded wire included in the electric wire 180 and grounded. In this case, the ground base 172 and the support plate 160a are formed of a conductor, for example. As a result, the support plate 160a and the box frame 100 are electrically connected, for example, through the mounting portion 162 or the fastening member of the support plate 160a. The current flowing from the ground line flows to the box frame 100 through the ground base 172, the support plate 160a, and the mounting portion 162, for example. As a result, it becomes unnecessary to provide a grounding base 172 in the box frame 100, and the length of the grounding wire can be further shortened. In addition, the grounding base 172 may be provided on the support plate 160b.

The support plate 160b supports the electric wire 180 supported by the support plate 160a embedded in the opening portion 101 at a position separated from the support plate 160a. The support plate 160b is formed with a plurality of openings 160ba. The worker arranges the electric wires 180 to be supported, and fixes the electric wires 180 with a band 174 that passes through the opening 160ba. As a result, the electric wire 180 is held on the support plate 160b. The support plate 160b is formed with a hole portion 160bb for attaching the support plate 160b to the box frame 100 or the partition member 140. The worker fixes the support plate 160b to the case frame 100 by, for example, locking the shaft portion through a screw or bolt of the hole portion 160bb to the hole of the protruding portion 104 and the like. Also, the support plate 160b may be attached to the partition member 140.

The electric wires 180 supported by the supporting plates 160a and 160b support the electric wires 180 of a length that can be connected to the position of the electronic device 120 previously stored in the box frame 100. Further, in order to be mountable to the electronic device 120 to be mounted, a connector 182 a or a crimp terminal 182 b and the like are provided at an end portion of the electric wire 180.

FIG. 6 is a diagram for explaining a procedure for assembling a control box by inserting the support plate 160 a into the opening 101 of the box frame 100. For example, the worker fits the opening portion 101 formed on the bottom surface of the box frame 100 into the support plate 160 a from the outside of the box frame 100 in the Z direction. In this case, the worker accommodates the electric wire 180 supported by the support plate 160 a into the box frame 100 from the opening 101. Then, in a state where the support plate is fitted, the operator locks and tightens the screws or bolts that have passed through the hole portion 162 a of the mounting portion 162 to the hole of the convex portion 105, and fixes the support plate 160 a to the box frame 100.

Then, the operator opens the lids 100a and 100b, fixes the support plate 160b to the box frame 100, and connects the electric wire 180 to the electronic device 120, the terminal 103, and the like, thereby completing the assembly operation of the control box 10.

(Modification) Here, a modification of the above embodiment will be described. For example, the electronic device 120 stored in the box frame 100 may be disposed near the opening 101. As a result, the length of the electric wire 180 supported by the support plate 160a can be shortened. Further, the opening 101 in which the support plate 160a is embedded may be formed not only on the bottom surface of the box frame 100, but also on the top surface, side surfaces, cover body, and the like.

In addition, the support plates 160a and 160b may be mounted with components related to, for example, electrical components for anti-jamming or wires 180 such as sensors for current detection. As a result, it is possible to connect to the wiring or electrical components outside the box frame 100. Therefore, the work efficiency of assembling the control box 10 can be improved.

Further, the elastic member 164 mounted on the outer peripheral portion of the support plate 160a may be replaced with (or in addition to) the outer peripheral portion of the support plate 160a, and the elastic member may be mounted on the outer peripheral portion of the opening portion 101. In this case, the elastic member may be attached to the outer peripheral portion of the opening portion 101 by using an adhesive, or may be installed by being fitted into a recessed type receiving portion provided in the outer peripheral portion of the opening portion 101.

Further, a protruding portion for pressing the elastic member 164 into the outer peripheral portion of the opening portion 101 in contact with the elastic member 164 or the outer peripheral portion of the support plate 160a may be formed. As a result, when the support plate 160a is fitted into the opening 101, the elastic member 164 is deformed to be kept closed by the protrusion being pressed into the surface of the other elastic member. Therefore, the pressing force on the elastic member 164 is increased more than the pressing force in a state where there is no protruding portion.

According to at least one of the above-mentioned embodiments, the holder 100 holds the electronic device 120 and has an opening 101 formed therein; the partition member 140 is a partition member 140 that partitions the space 102 in the box frame 100, It is formed with a recessed portion 142 at a position corresponding to the position of the opening 101; the support plate 160 is a support plate 160 that supports the electric wire 180, which is embedded in the opening 101; and the electric wire 180 is formed by a support plate 160 is supported, passes through the recessed portion 142, and is connected to the electronic device 120 accommodated in at least one of the spaces 102 partitioned by the partition member 140; as a result, the workload of wiring can be reduced. In addition, according to at least one embodiment, it is not necessary to secure a space for the operator to enter the box frame 100 to perform wiring laying work, and the mounting density of the control box 10 can be increased. Moreover, according to at least one embodiment, miniaturization of the control box 10 is possible.

Although the embodiments of the present invention have been explained to some extent, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are the same as those included in the scope or gist of the invention, and are included in the invention described in the scope of the patent application and their equivalent scope.

10‧‧‧Control Box

100‧‧‧ Box

101‧‧‧ opening

102a ～ 102d‧‧‧Space

103‧‧‧Terminal

104, 105‧‧‧ raised

120‧‧‧Electronic equipment

140‧‧‧ divider

142‧‧‧Concave

160‧‧‧Support plate

164‧‧‧elastic member

168‧‧‧ flat support

170‧‧‧column support

170a‧‧‧Mounting member

180‧‧‧Wire

1 is a schematic view of a rail vehicle 1 equipped with a control box 10 according to an embodiment, as viewed from the side.

FIG. 2 is a diagram for explaining a configuration of a control box 10 according to the embodiment.

FIG. 3 is a diagram for explaining a configuration of a support plate 160 according to the embodiment.

FIG. 4 is a diagram for explaining a first example of the configuration of the columnar supporter 170.

FIG. 5 is a diagram for explaining a second example of the configuration of the columnar supporter 170.

6 is a diagram for explaining a procedure for assembling a control box by inserting the support plate 160 a into the opening 101 of the box frame 100.

Claims (8)

A control box includes: (1) a box frame that houses an electronic device and has an opening portion; (2) a partition member that is a partition member that partitions a space in the box frame, and is located at a position corresponding to the position of the opening portion A recess is formed; a support plate is a support plate for supporting electric wires, which is embedded in the opening; and an electric wire is supported by the support plate, passes through the recess, and is accommodated in The electronic device is connected to at least one of the spaces partitioned by the partition member. For example, the control box of claim 1, wherein is further provided with an elastic member, which is an elastic member mounted on at least one of the outer peripheral portion of the opening portion or the outer peripheral portion of the support plate, which is the support plate. By being inserted into the opening, the other is pressed by the other, thereby preventing a substance from flowing between the opening and the support plate. For example, the control box of claim 1 or 2, wherein: is installed with a columnar support, which is connected to the support plate to support the electric wire, and extends from the installation surface of the electric wire in the support plate until it is away from the installation. Face position. The control box according to claim 3, wherein: the columnar support is mounted to the support plate through a mounting member, the mounting member is formed with a hinge portion, and the hinge portion can make the columnar support face the aforementioned in the support plate The mounting surface of the electric wire is inclined. For example, the control box of claim 1 or 2, wherein: is provided with a plurality of support plates for supporting the electric wires; 至少 at least one of the plurality of support plates is embedded in the opening, and the remaining support plates are fixed in the box The frame is the aforementioned partition member. The control box according to claim 1 or 2, wherein: the support plate is formed of aluminum or aluminum alloy. The control box according to claim 1 or 2, wherein: the support plate is formed of a conductive body, and is electrically connected to the box frame; a ground wire of an electric wire supported by the support plate is connected to the support board. A method of assembling a control box is to install electric wires to a support plate; 嵌入 embed the support plate into an opening formed in a box frame; 嵌入 insert the support plate into the opening to form a partition The electric wires in the recessed portion of the partition member in the space in the box frame are connected to an electronic device housed in at least one of the spaces partitioned by the partition member.