CN110139774B

CN110139774B - Control box and manufacturing method thereof

Info

Publication number: CN110139774B
Application number: CN201780080504.0A
Authority: CN
Inventors: 森一马; 北泽靖之; 吉田直也; 栗栖直之; 龟山博隆
Original assignee: Toshiba Corp; Toshiba Infrastructure Systems and Solutions Corp
Current assignee: Toshiba Corp; Toshiba Infrastructure Systems and Solutions Corp
Priority date: 2017-03-30
Filing date: 2017-12-07
Publication date: 2023-01-10
Anticipated expiration: 2037-12-07
Also published as: CN110139774A; TWI659871B; JP2018170879A; TW201836881A; JP6862244B2; WO2018179603A1

Abstract

The control box of the embodiment comprises a box body, a partition component, a support plate and an electric wire. The case accommodates an electronic device and has an opening. The partition member partitions a space in the case. The partition member has a recess formed at a position corresponding to the position of the opening. The support plate supports the electric wire. The support plate is fitted into the opening. The electric wire is supported by the support plate, passes through the recess, and is connected to the electronic device accommodated in at least one of the spaces partitioned by the partition member.

Description

Control box and manufacturing method thereof

Technical Field

Embodiments of the present invention relate to a control box and a method of manufacturing the control box.

Background

Railway vehicles are equipped with electric wires for connecting electronic devices. The electric wire is fixed to a part of the case in order to prevent breakage due to vibration of the vehicle. If the work of fixing the electric wire is performed inside the box, the work space becomes narrow and the fixing position also becomes large. Therefore, conventionally, the electric wire is fixed to the electric wire fixture, and the fixed electric wire fixture is attached to the housing. However, when the space in the housing is partitioned by the partition member, it may be difficult to route the electric wire fixed to the electric wire fixing portion across the respective spaces in the work.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 6-178411

Disclosure of Invention

Technical problem to be solved by the invention

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a control box and a method of manufacturing the control box, which can reduce the workload of wiring.

Technical solution for solving technical problem

The control box of the embodiment comprises a box body, a separation part, a support plate and an electric wire. The case accommodates an electronic device and has an opening. The partition member partitions a space in the case. The partition member has a recess formed at a position corresponding to the position of the opening. The support plate supports the electric wire. The support plate is fitted into the opening. The electric wire is supported by the support plate, passes through the recess, and is connected to the electronic device accommodated in at least one of the spaces partitioned by the partition member.

Drawings

Fig. 1 is a schematic view of a railway vehicle 1 mounted with a control box 10 according to an embodiment as viewed from the side.

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

Fig. 3 is a diagram for explaining the structure of the support plate 160 according to the embodiment.

Fig. 4 is a diagram for explaining a first embodiment of the columnar stay 170.

Fig. 5 is a diagram for explaining a second embodiment of the columnar stay 170.

Fig. 6 is a diagram for explaining a procedure of fitting the support plate 160a into the opening 101 of the casing 100 to assemble the control box.

Detailed Description

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

Fig. 1 is a schematic view of a railway vehicle 1 mounted with a control box 10 according to an embodiment as viewed from the side. The control box 10 is disposed on the bottom 1a of the railway vehicle 1, for example. The current collector 2 supplies power from the overhead wire W to the control box 10. The control box 10 accommodates, for example, a power conversion unit and a control unit, which are not shown. The power conversion unit includes, for example, a semiconductor element constituting an inverter and a switching circuit for controlling on/off of the semiconductor element. A torque command value indicating a traction torque to be generated by the running motor 3 is supplied from the control unit to the power conversion unit. The power conversion unit performs on/off control of the semiconductor element based on the torque command value, thereby converting the power supplied from the current collector 2 into ac power for driving the electric motor, and supplying the ac power to the traveling motor 3. Thereby, the control box 10 causes the running motor 3 to generate a torque, thereby running the railway vehicle 1 in the arrow direction (X direction).

Next, the structure of the control box 10 will be explained. 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 body 100, an electronic device 120, a partition member 140, a support plate 160, and an electric wire 180.

The case 100 is made of metal such as iron, stainless steel, aluminum, or aluminum alloy. The case 100 houses an electronic device 120. Further, the case 100 is formed with an opening 101. The support plate 160a, which will be described later, is fitted into the opening 101. The case 100 is provided with

covers

100a and 100b. When an operator performs installation of the electronic device 120, wiring work of the electric wire 180, maintenance work, and the like in the case 100, the operator opens the

covers

100a and 100b of the case 100 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 partitions the space inside the case 100. In fig. 2, four spaces are formed in the case 100 by two

partition members

140a and 140b

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.

Terminals

103a and 103b connectable to an external electric wire of the case 100 are provided in the space 102 d. In addition, in each space

Is provided with a projection in at least one space

Projection

The

support plate

160a or 160b is attached to the case 100 or the partition member 140 by a fastening member such as a screw or a bolt.

The

partition members

140a and 140b have

recesses

142a and 142b formed at positions corresponding to the positions of the openings 101. The

recesses

142a and 142b allow at least the electric wire 180 supported by the support plate 160 to pass through from one space to the other space. The partition member 140 may be screwed into the case 100, or may be welded into the case 100.

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

In fig. 2, the control box 10 includes

support plates

160a and 160b. The support plate 160a is fitted into and fixed to the opening 101, and the support plate 160b is screwed to the boss

The above.

When two openings 101 are formed in the case 100, the support plate 160 may be fitted into each opening 101.

The support plate 160 is formed of, for example, aluminum or an aluminum alloy. This can shield electromagnetic noise radiated downward from the inside of the casing 100 through the support plate 160, for example. Therefore, for example, adverse effects on ground equipment grounded near the line can be suppressed. Further, since the support plate 160 can be made lighter than a support plate made of iron or stainless steel, the burden on the worker who fits into the opening 101 can be reduced. Further, the support plate 160 may be formed of iron or stainless steel.

The electric wire 180 is supported by the support plate 160. The electric wire 180 is connected to each space in the case 100 partitioned by the

partition members

140a and 140b, for example

The electronic device 120, the connector, or the

terminals

103a, 103b in at least one space.

In fig. 2, for example, the electric wire 180 is connected with the electronic device 120a in the space 102a, and the electric wire 180 is connected with the

terminals

103a, 103b in the space 102 d. In addition, the electric wire 180 is connected to the

electronic devices

120b and 120c in the space 102b, and the electric wire 180 is connected to the electronic device 120d in the space 102c.

Next, a specific structure 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 schematic diagram illustrating an embodimentThe structure of the supporting plate 160 is shown. The support plate 160a fitted into the opening 101 includes, for example, a mounting portion

Spring member 164, branch coupling terminals 166, plate support 168, post support 170, and ground 172.

Mounting part

Is a projection for attaching the support plate 160a to the case 100 in a state where the support plate 160a is fitted into the opening 101 of the case 100

The component (2). Mounting part

For example, made of the same metal as the support plate 160a. At the mounting part

A hole part for passing the shaft part of the screw and the bolt is formed on the upper part

The elastic member 164 is attached to a contact portion between the support plate 160a and the case 100 when the support plate 160a is fitted into the opening 101. In fig. 3, the elastic member 164 is attached to the outer peripheral portion of the support plate 160a. The elastic member 164 is mounted on the surface of the support plate 160a, for example, by an adhesive. The elastic member 164 may be fitted into a concave receiving portion formed in the outer periphery of the support plate 160.

Thus, when the support plate 160a is fitted and fixed to the opening 101, the elastic member 164 is pressed by the bottom surface of the case 100. Therefore, the flow of a substance such as gas or liquid between the opening 101 and the support plate 160a is inhibited.

The branch connection terminal 166 is a terminal for branching the electric wire 180 into a plurality of pieces or connecting a plurality of electric wires 180. For example, the branch joint terminal 166 distributes the current derived from the electric wire 180 to the plurality of electric wires 180. In addition, the branch connection terminal 166 merges currents obtained from a plurality of electric wires and flows into one electric wire 180. By providing the branch connection terminal 166 on the support plate 160a in this manner, the worker can attach the electric wire 180 to the support plate 160a in advance in a branched or connected manner before fitting the support plate 160a into the opening 101 of the case 100. Therefore, the work after the support plate 160a is attached to the casing 100 can be reduced, and the work efficiency of the assembly work of the entire control box 10 can be improved.

The plate support 168 supports at least one wire 180. The plate supporter 168 is formed to space the mounting surface of the electric wire 180 from the support plate 160a. The operator collects the electric wire 180 to be supported on the mounting surface, and fixes the electric wire 180 with the binding band 174 inserted through the gap formed by spacing the mounting surface from the support plate 160a. Thereby, the electric wire 180 is held to the plate support 168.

The cylindrical support 170 supports at least one wire 180. The columnar support 170 is, for example, a columnar member in the shape of "コ", and is attached to extend to a position separated by a predetermined distance from the attachment surface of the electric wire 180 in the support plate 160a.

Fig. 4 is a diagram for explaining a first embodiment of the columnar stay 170. The columnar holder 170 is attached to the support plate 160a by, for example, an attachment member 170 a. The mounting member 170a may be integrally formed with the pillar brace 170. In addition, a plurality of slits 170b are formed in the columnar supporter 170. The operator collects the electric wires 180 to be supported and fixes the electric wires 180 with the binding band 174 inserted through the slit 170b. Thereby, the electric wire 180 is held to the columnar support 170. By providing the columnar stay 170, for example, even when the electronic device 120 is provided at a position separated from the bottom surface of the case 100, the electric wire 180 can be wired in the vicinity of the electronic device 120 in a supported state. Therefore, the space 102 in the casing 100 can be effectively used.

Further, mounting member 170a may be provided with hinge portion 170aa, and hinge portion 170aa may tilt column holder 170 toward the mounting surface of electric wire 180 on support plate 160a. This prevents the support plate 160a to which the columnar stay 170 is attached from being obstructed when the worker carries the support plate 160a, and prevents the support plate 160a from coming into contact with the electronic device 120 and the partition member 140 in the case 100 when the support plate is fitted into the opening 101. Therefore, the operator can improve the work efficiency of the assembly work of the control box 10.

Fig. 5 is a diagram for explaining a second embodiment of the columnar support 170. The columnar stay 170c according to the second embodiment is provided with a mechanism for adjusting the extended length. Specifically, the columnar support 170c includes, for example, a first columnar support 170ca and a second columnar support 170cb. The second cylindrical support 170cb is formed to be slidable up and down inside the first cylindrical support 170 ca. A plurality of opening holes 170d are formed in the first columnar receiver 170ca, and a protrusion 170e inserted into the opening holes 170d is provided in the second columnar receiver 170cb. The operator slides the second cylindrical supporter 170cb and inserts the protrusion 170e into the opening 170d at a position to be fixed, thereby fixing the second cylindrical supporter 170cb. Thereby, the extended length of the columnar support 170c is adjusted. Therefore, the operator can adjust the length of extension of the columnar support 170c to an appropriate length according to the position of the electronic device 120.

The ground socket 172 is connected to a ground line of a shield wire included in the electric wire 180 and grounded. In this case, the ground holder 172 and the support plate 160a are formed by, for example, an electric conductor. As a result, the support plate 160a and the case 100 are electrically connected to each other, for example, by the mounting portion 162 of the support plate 160a or the fastening member. The current flowing from the ground line flows into the case 100 through, for example, the ground holder 172, the support plate 160a, and the attachment portion 162. This eliminates the need to provide the ground socket 172 in the case 100, and the length of the ground wire can be further shortened. Further, the ground holder 172 may be provided on the support plate 160b.

The support plate 160b supports the electric wire 180 supported by the support plate 160a fitted in the opening 101 at a position separated from the support plate 160a. Support plate 160b is formedThere are a plurality of openings 160ba. The operator collects the electric wires 180 to be supported and fixes the electric wires 180 with the binding band 174 inserted through the opening 160ba. Thereby, the electric wire 180 is held by the support plate 160b. The support plate 160b is provided with a hole 160bb for attaching the support plate 160b to the case 100 or the partition member 140. The worker screws and fastens the shaft portion to the boss by, for example, a screw or a bolt having passed through the hole 160bb

And the like, thereby fixing the support plate 160b to the case 100. The support plate 160b may be attached to the partition member 140.

The electric wires 180 supported by the

support plates

160a and 160b are supported by the electric wires 180 of a length that allows connection according to the position of the electronic device 120 housed in the housing 100 in advance. In addition, at the end of the electric wire 180, a connector 182a, a crimp terminal 182b, or the like is provided so as to be mountable to the electronic apparatus 120 of the mounting object.

Fig. 6 is a diagram for explaining a procedure of fitting the support plate 160a into the opening 101 of the casing 100 to assemble the control box. For example, the operator fits the support plate 160a into the opening 101 formed in the bottom surface of the casing 100 from the outside of the casing 100 in the Z direction. In this case, the operator accommodates the electric wire 180 supported by the support plate 160a into the case 100 through the opening 101. In addition, the worker screws or bolts inserted through the holes 162ah to 162fh of the mounting portions 162a to 162f into the holes of the bosses 105a to 105f in a state where the support plate 160a is fitted thereto, and fastens the screws or bolts to the holes of the bosses 105a to 105 f. Thereby, the support plate 160a is fixed to the case 100.

The operator opens the

covers

100a and 100b to fix the support plate 160b to the case 100, and connects the electric wire 180 to the electronic device 120, the

terminals

103a and 103b, and the like, thereby completing the assembly work of the control box 10. The control box 10 is manufactured by the above-described assembly operation.

(modification example)

Here, a modified example of the above embodiment will be explained. For example, the electronic device 120 housed in the case 100 may be disposed near the opening 101. This can shorten the length of the electric wire 180 supported by the support plate 160a. The opening 101 into which the support plate 160a is fitted may be formed on the top surface, the side surface, the lid body, or the like of the case 100, but not on the bottom surface of the case 100.

Further, the

support plates

160a and 160b may be provided with components related to the electric wires 180 such as electric components for noise countermeasure and sensors for current detection, for example. This enables connection to the wiring and the electric component, etc., outside the case 100. Therefore, the work efficiency of the assembly work of the control box 10 can be improved.

In addition, the elastic member 164 attached to the outer peripheral portion of the support plate 160a may be attached to the outer peripheral portion of the opening 101 instead of the outer peripheral portion of the support plate 160a (or in addition to the outer peripheral portion of the support plate 160 a). In this case, the elastic member may be attached to the outer periphery of the opening 101 by an adhesive, or may be attached by fitting into a recessed housing provided on the outer periphery of the opening 101.

Further, a protruding portion for pressing the elastic member 164 may be formed on the outer peripheral portion of the opening 101 or the outer peripheral portion of the support plate 160a which is in contact with the elastic member 164. Thus, when the support plate 160a is fitted into the opening 101, the protrusion presses the surface of the elastic member on the other side, and the elastic member 164 deforms and maintains the hermetic seal. Therefore, the pressing force to the elastic member 164 is increased as compared with the pressing force in the state without the protruding portion.

According to at least one embodiment described above, the work load of wiring can be reduced by providing the case 100, the opening 101 being formed, the case 100 accommodating the electronic device 120, the partition member 140 partitioning the space 102 in the case 100, the recess 142 being formed at a position corresponding to the position of the opening 101, the support plate 160 fitting into the opening 101 while supporting the electric wire 180, the support plate 160 supporting the electric wire 180, the electric wire 180 being connected to the electronic device 120 accommodated in at least one of the spaces 102 partitioned by the partition member 140 while passing through the recess 142, and the support plate 160. In addition, according to at least one embodiment, since it is not necessary to secure a space for an operator to enter the box 100 to perform wiring work, the mounting density of the control box 10 can be increased. In addition, according to at least one embodiment, the control box 10 can be downsized.

Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments may be implemented in other various ways, and various omissions, substitutions, and changes may be made without departing from the spirit of the invention. These embodiments and modifications are included in the scope of the invention and the equivalent thereof as described in the claims, as well as included in the scope and gist of the invention.

Claims

1. A control box is provided with:

a case which houses an electronic device and has an opening;

a partition member that partitions a space in the case and has a recess formed at a position corresponding to the position of the opening;

a support plate configured to support the electric wire and fit into the opening;

an electric wire supported by the support plate, passed through the recess, and connected to the electronic device accommodated in at least one of the spaces partitioned by the partition member; and

and an elastic member attached to at least one of an outer peripheral portion of the opening and an outer peripheral portion of the support plate, wherein the support plate is fitted into the opening, and the elastic member is pressed by the other one, thereby preventing a substance from flowing between the opening and the support plate.

2. The control box according to claim 1,

a columnar support member that supports the electric wire and is formed to extend to a position separated from a mounting surface of the electric wire in the support plate is mounted on the support plate.

3. The control box according to claim 2,

the columnar stay is attached to the support plate by an attachment member formed with a hinge portion that can be tilted toward an attachment surface of the electric wire in the support plate.

4. The control box according to any one of claims 1 to 3,

a plurality of support plates for supporting the electric wires,

at least one of the plurality of support plates is fitted into the opening, and the remaining support plates are fixed to the case or the partition member.

5. The control box according to any one of claims 1 to 4,

the support plate is formed of aluminum or an aluminum alloy.

6. The control box according to any one of claims 1 to 5,

the support plate is formed of an electric conductor and is electrically connected to the case,

the grounding wire of the electric wire supported by the support plate is connected to the support plate.

7. A method of manufacturing a control box according to claim 1, wherein the control box is manufactured by a method of manufacturing a control box according to the method of claim 1,

the electric wires are mounted to the support plate,

the support plate is fitted into an opening formed in a casing of the control box,

the support plate is fitted into the opening, whereby the electric wire passed through the recess of the partition member formed to partition the space in the case is connected to the electronic device accommodated in at least one of the spaces partitioned by the partition member.