CN112319520A - Rail vehicle circuit and rail vehicle - Google Patents
Rail vehicle circuit and rail vehicle Download PDFInfo
- Publication number
- CN112319520A CN112319520A CN202011108666.0A CN202011108666A CN112319520A CN 112319520 A CN112319520 A CN 112319520A CN 202011108666 A CN202011108666 A CN 202011108666A CN 112319520 A CN112319520 A CN 112319520A
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- CN
- China
- Prior art keywords
- rail vehicle
- direct current
- conductive
- circuit
- protection device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The embodiment of the application provides a rail vehicle circuit and a rail vehicle, wherein the rail vehicle circuit comprises a first direct current trunk line, a comprehensive control cabinet and a first direct current branch line, and the first direct current trunk line is connected with a power supply device; the comprehensive control cabinet is arranged in a carriage of the railway vehicle; the first direct current branch line is connected with the first direct current trunk line and the comprehensive control cabinet, the first direct current branch line is connected with a protection device in series, and the protection device is used for carrying out overload protection between the first direct current trunk line and the comprehensive control cabinet. The rail vehicle circuit of this application embodiment can take place the fusing when the electric current on the first direct current branch line surpasss fusing electric current to implement the protection to first direct current branch line, improve rail vehicle's driving safety nature.
Description
Technical Field
The application relates to a rail vehicle manufacturing technology, in particular to a rail vehicle circuit and a rail vehicle.
Background
With the development of rail transit systems, rail vehicles gradually become the first choice tools for people to go out. The normal operation of the rail vehicle requires that each device in the vehicle is in a normal operation state, for example, the rail vehicle is provided with a plurality of electrical devices, and the various electrical devices need to be connected in series or in parallel by a circuit, and the circuit is ensured to be normal.
The circuit on the rail vehicle is divided into a high-voltage (mostly DC600V on a domestic train) circuit and a low-voltage (mostly DC110V on a domestic train), and in the scheme of the related art, a low-voltage branch line protection device is arranged on a low-voltage circuit trunk line and is installed in a junction box under the train and connected in series on the low-voltage circuit trunk line. When the low-voltage circuit has short circuit or overload fault, the fuse in the low-voltage branch line protection device is fused, thereby realizing the circuit protection function.
However, with the solutions in the related art, a corresponding protection device is absent on the high-voltage circuit, so that there is a safety hazard.
Disclosure of Invention
The embodiment of the application provides a rail vehicle circuit and a rail vehicle, and the rail vehicle circuit and the rail vehicle are mainly used for solving the problems that in the related art, a high-voltage circuit is lack of a protection device and potential safety hazards exist.
According to a first aspect of embodiments of the present application, there is provided a rail vehicle electrical circuit comprising:
a first direct current trunk line connected with a power supply device;
the integrated control cabinet is arranged in a carriage of the rail vehicle;
the first direct current branch line is connected with the first direct current trunk line and the integrated control cabinet, and is connected with a protection device in series, and the protection device is used for performing overload protection between the first direct current trunk line and the integrated control cabinet.
The rail vehicle electrical circuit as described above, optionally, the protection device comprises:
a mounting plate for providing a mounting space;
the binding posts are arranged on the mounting plate in a group two by two and comprise a conductive part and an adjusting part vertically arranged on the conductive part, the adjusting part can move relative to the conductive part to adjust a gap between the conductive part and the adjusting part, and the conductive parts of two binding posts in the same group are connected in series on the first direct current branch line;
and the fuse is arranged between the two binding posts in the same group and is electrically connected with the conductive parts of the binding posts.
In the rail vehicle circuit as described above, optionally, a junction box is disposed on the first dc branch line, a junction seat is disposed on a surface of the junction box, and a junction terminal is disposed on a surface of the junction seat; the junction box is located between the protection device and the first direct current trunk line, the protection device is fixed on the surface of the junction base through the mounting plate, one of the binding posts in the same group is electrically connected with the junction terminal, and the other binding post is connected with the comprehensive control cabinet through a wire.
In the above-described rail vehicle electric circuit, optionally, an electrically conductive plate is provided between the electrically conductive portion and the adjusting portion, and the protection device is electrically connected to the branch terminal through the electrically conductive plate.
In the rail vehicle circuit as described above, optionally, an insulating seat is provided between the wiring terminal and the mounting plate, and the conductive part is fixedly arranged on the insulating seat.
Optionally, the insulating seat is provided with a threaded hole, the conductive portion is provided with a through hole corresponding to the threaded hole, the adjusting portion comprises a stud and a nut, the stud penetrates through the through hole and then is fixed in the threaded hole, and the nut is sleeved on the stud and located on one side of the conductive portion, which is far away from the insulating seat.
The rail vehicle circuit as described above, optionally, each of the terminals is provided with two of the conductive portions and two of the adjusting portions, and the two conductive portions of the same terminal are electrically connected.
Optionally, the fuse is further provided with a microswitch, the mounting plate is provided with a signal terminal strip, the microswitch is in communication connection with the wiring terminal on the signal terminal strip, and the signal terminal strip is in communication connection with an external monitoring device.
The rail vehicle circuit as described above, optionally, two sets of the binding posts are provided on the mounting plate, and the signal terminal strip is provided between the two sets of the binding posts.
According to a second aspect of the embodiments of the present application, there is provided a rail vehicle comprising a rail vehicle circuit as described in any one of the above and a plurality of end-to-end cars, the rail vehicle circuit being connected in series within the plurality of cars.
By adopting the rail vehicle circuit and the rail vehicle according to the embodiment of the application, the rail vehicle circuit comprises a first direct current trunk line, a comprehensive control cabinet and a first direct current branch line, and the first direct current trunk line is connected with a power supply device; the comprehensive control cabinet is arranged in a carriage of the railway vehicle; the first direct current branch line is connected with the first direct current trunk line and the comprehensive control cabinet, the first direct current branch line is connected with a protection device in series, and the protection device is used for carrying out overload protection between the first direct current trunk line and the comprehensive control cabinet. The rail vehicle circuit of this application embodiment can take place the fusing when the electric current on the first direct current branch line surpasss fusing electric current to implement the protection to first direct current branch line, improve rail vehicle's driving safety nature.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic front view of a protection device according to an embodiment of the present application;
FIG. 2 is a schematic side view of a protective device according to an embodiment of the present disclosure;
FIG. 3 is a schematic top view of a protective device according to an embodiment of the present disclosure;
FIG. 4 illustrates a circuit diagram of a rail vehicle provided by an embodiment of the present application;
fig. 5 is a schematic diagram illustrating a connection structure of a protection device in a circuit according to an embodiment of the present application.
Reference numerals:
10-a protection device;
100-a mounting plate; 110-a fixation hole;
200-a binding post; 210-a conductive portion; 220-an adjustment section;
a 300-fuse;
400-an insulating seat;
500-a microswitch;
600-signal terminal rows;
700-a conductive plate;
20-a first direct current main;
30-a comprehensive control cabinet;
40-a first direct current leg; 410-a distribution box; 411-a wire separating seat; 4111-branch terminals.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
Fig. 1 is a schematic front view of a protection device according to an embodiment of the present application; FIG. 2 is a schematic side view of a protective device according to an embodiment of the present disclosure; FIG. 3 is a schematic top view of a protective device according to an embodiment of the present disclosure; FIG. 4 illustrates a circuit diagram provided by an embodiment of the present application; fig. 5 is a schematic diagram illustrating a connection structure of a protection device in a circuit according to an embodiment of the present application; please refer to fig. 1-5.
The embodiment provides a rail vehicle circuit, which comprises a first direct current trunk line 20, a comprehensive control cabinet 30 and a first direct current branch line 40, wherein the first direct current trunk line 20 is connected with a power supply device; the integrated control cabinet 30 is arranged in a carriage of the railway vehicle; the first dc branch line 40 is connected to the first dc trunk line 20 and the integrated control cabinet 30, the protection device 10 is disposed on the first dc branch line 40, and the protection device 10 is used for performing overload protection between the first dc trunk line 20 and the integrated control cabinet 30.
Specifically, the first dc trunk line and the first dc branch line in this embodiment are two cables in the high-voltage circuit on the railway vehicle. In this embodiment, two first dc trunks 20 are provided, and both the two first dc trunks 20 obtain electric energy from the power supply device; the two first direct current trunk lines 20 penetrate through each compartment along the length direction of the vehicle, a comprehensive control cabinet 30 is arranged in each compartment, two first direct current branch lines 40 are connected with the two first direct current trunk lines 20 and are connected with the comprehensive control cabinet 30, and a protection device 10 is arranged on each first direct current branch line 40 to protect the first direct current trunk lines 20.
The rail vehicle circuit of the embodiment can be fused when the current in the first dc branch line exceeds the fusing current due to the serially connected protection device 10, so that the first dc branch line is protected, and the driving safety of the rail vehicle is improved.
As shown in fig. 1 to 3, the protection device 10 of the present embodiment includes a mounting plate 100, a plurality of terminals 200, and a fuse 300.
The mounting plate 100 is used for providing a mounting space, and the mounting plate 100 can be made of metal plates and the like; the mounting plate 100 is provided with a plurality of fixing holes 110, and the fixing holes 110 are used for connecting the mounting plate 100 with external equipment; as shown in fig. 3, the mounting plate 100 of the present embodiment is substantially rectangular, four fixing holes 110 are disposed on the mounting plate 100, and the four fixing holes 110 are disposed at four corners of the mounting plate 100.
In this embodiment, a plurality of binding posts 200 are disposed on the mounting board 100 in a group, and each binding post 200 includes a conductive portion 210 and an adjustment portion 220 vertically disposed on the conductive portion 210, where the conductive portion 210 is made of a conductive metal material, and the adjustment portion 220 may be made of a conductive material or a non-conductive material. The adjustment portion 220 is movable relative to the conductive portion 210 to adjust a gap between the conductive portion 210 and the adjustment portion 220, thereby facilitating fixing of an external conductive wire or plate or the like. The conductive parts 210 of the two terminals 200 in the same group are connected in series on the high-voltage circuit, so that the protection device 10 is connected in series in the high-voltage circuit to realize overload protection. The fuse 300 is disposed between two terminals 200 of the same group, and is electrically connected to the conductive portions 210 of the terminals 200. The fuse 300 can continuously carry any current value not exceeding the rated current, and when any current not exceeding the predetermined fusing current is carried, the fuse 300 is not fused, and the high-voltage circuit is normally conducted. When the load is larger than or equal to the appointed fusing current or equal to any current lower than the rated breaking capacity, the fuse 300 is fused, the high-voltage circuit is not conducted, and therefore the circuit is protected.
The protection device 10 of the embodiment can be serially connected to a high-voltage circuit of a railway vehicle, and the fuse 300 on the protection device 10 can be fused when the current in the high-voltage circuit exceeds the fusing current, so that the high-voltage circuit is protected, and the driving safety of the railway vehicle is improved.
As shown in fig. 5, the first dc branch line 40 of the present embodiment is provided with a distribution box 410, a distribution socket 411 is provided on the surface of the distribution box 410, and a distribution terminal 4111 is provided on the surface of the distribution socket 411. The junction box 410 is disposed between the protection device 10 and the first dc trunk 20, and the protection device 10 is fixed on the surface of the junction box 410 by the mounting plate 100, one terminal 200 of the same group of terminals is electrically connected to the junction terminal 4111, and the other terminal 200 is connected to the first dc trunk 20 by a wire, thereby realizing the series connection of the protection device 10 into the high-voltage circuit.
In this embodiment, a conductive plate 700 is provided between the conductive part 210 and the adjustment part 220, and the protection device 10 is connected to the branch terminal 4111 via the conductive plate 700. The conductive plate 700 is connected instead of a wire, so that the connection stability and the connection strength can be improved, and the service life can be prolonged.
Further, in the present embodiment, an insulating base 400 is disposed between the terminal 200 and the mounting plate 100, the conductive portion 210 is fixedly disposed on the insulating base 400, and the insulating base 400 may be made of an insulating material such as ceramic, so as to block conduction between the terminal 200 and the mounting plate 100 and prevent leakage.
Furthermore, in the embodiment, a threaded hole is formed in the insulating base 400, a through hole corresponding to the threaded hole is formed in the conductive portion 210, the adjusting portion 220 includes a stud and a nut, the stud is fixed in the threaded hole after passing through the through hole, and the nut is sleeved on the stud and located on one side of the conductive portion 210 away from the insulating base 400. The gap between the conductive portion 210 and the adjustment portion 220 is adjusted to accommodate different sizes of wire harnesses by turning the nut so that the nut moves along the stud.
Optionally, in this embodiment, each binding post 200 is provided with two conductive portions 210 and two adjustment portions 220, the two conductive portions 210 and the two adjustment portions 220 are disposed on the same insulating base 400, and the two conductive portions 210 of the same binding post 200 are electrically connected, so as to achieve communication between the conductive portions 210 in the binding post 200; the provision of two conductive portions 210 facilitates the connection and mating with an external wiring harness.
Further, the fuse 300 of this embodiment is further provided with a micro switch 500, the mounting plate 100 is provided with a signal terminal strip 600, the micro switch 500 is in communication connection with a wiring terminal on the signal terminal strip 600, and the signal terminal strip 600 is used for being in communication connection with an external monitoring device. Through setting up micro-gap switch 500, after fuse 300 takes place to fuse, micro-gap switch 500 can be with corresponding fusing signal transmission to signal terminal row 600 on, signal terminal row 600 can be with fusing signal transmission to external monitoring equipment to remind the staff to take place the information of fusing, the remedy of in time troubleshooting of being convenient for.
In this embodiment, a plurality of terminals 200 may be disposed on the same mounting board 100, and the specific number may be selected according to the requirement, for example, two groups (i.e., four) of terminals 200 are disposed on the mounting board 100 in this embodiment, and the signal terminal strip 600 is disposed between the two groups of terminals 200.
Example two
The present embodiment provides a rail vehicle, which includes the rail vehicle circuit and a plurality of cars connected end to end as described in the first embodiment, and the rail vehicle circuit is connected in series in the plurality of cars.
The rail vehicle of this embodiment is provided with the rail vehicle circuit described in the first embodiment, so that the rail vehicle can be fused when the current in the first dc branch line exceeds the fusing current, thereby protecting the first dc branch line and improving the driving safety of the rail vehicle.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A rail vehicle electrical circuit, comprising:
a first direct current trunk line connected with a power supply device;
the integrated control cabinet is arranged in a carriage of the rail vehicle;
the first direct current branch line is connected with the first direct current trunk line and the integrated control cabinet, and is connected with a protection device in series, and the protection device is used for performing overload protection between the first direct current trunk line and the integrated control cabinet.
2. The rail vehicle electrical circuit of claim 1, wherein the protection device comprises:
a mounting plate for providing a mounting space;
the binding posts are arranged on the mounting plate in a group two by two and comprise a conductive part and an adjusting part vertically arranged on the conductive part, the adjusting part can rotate relative to the conductive part to adjust a gap between the conductive part and the adjusting part, and the conductive parts of two binding posts in the same group are connected in series on the first direct current branch line;
and the fuse is arranged between the two binding posts in the same group and is electrically connected with the conductive parts of the binding posts.
3. The rail vehicle circuit of claim 2, wherein the first dc branch line is provided with a junction box, a junction seat is provided on a surface of the junction box, and a junction terminal is provided on a surface of the junction seat; the junction box is located between the protection device and the first direct current trunk line, the protection device is fixed on the surface of the junction base through the mounting plate, one of the binding posts in the same group is electrically connected with the junction terminal, and the other binding post is connected with the comprehensive control cabinet through a wire.
4. The rail vehicle circuit according to claim 3, wherein an electrically conductive plate is provided between the electrically conductive portion and the regulating portion, and the protection device is electrically connected to the branch terminal through the electrically conductive plate.
5. The rail vehicle circuit of claim 2, wherein an insulating seat is provided between the terminal post and the mounting plate, and the conductive portion is fixedly arranged on the insulating seat.
6. The rail vehicle circuit of claim 5, wherein a threaded hole is formed in the insulating base, a through hole corresponding to the threaded hole is formed in the conductive portion, the adjusting portion comprises a stud and a nut, the stud penetrates through the through hole and then is fixed in the threaded hole, and the nut is sleeved on the stud and located on one side, away from the insulating base, of the conductive portion.
7. The rail vehicle electrical circuit of claim 6, wherein each of the terminals has two of the conductive portions and two of the adjustment portions, and the two conductive portions of the same terminal are electrically connected to each other.
8. The rail vehicle circuit of claim 7, wherein the fuse is further provided with a microswitch, the mounting plate is provided with a signal terminal strip, the microswitch is in communication connection with a wiring terminal on the signal terminal strip, and the signal terminal strip is used for being in communication connection with an external monitoring device.
9. The rail vehicle electrical circuit of claim 8, wherein two sets of the posts are provided on the mounting plate, and the signal terminal strip is disposed between the two sets of the posts.
10. A rail vehicle comprising a rail vehicle electric circuit according to any one of claims 1-9 and a plurality of end-to-end cars, said rail vehicle electric circuit being connected in series within a plurality of said cars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011108666.0A CN112319520A (en) | 2020-10-16 | 2020-10-16 | Rail vehicle circuit and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011108666.0A CN112319520A (en) | 2020-10-16 | 2020-10-16 | Rail vehicle circuit and rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112319520A true CN112319520A (en) | 2021-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011108666.0A Pending CN112319520A (en) | 2020-10-16 | 2020-10-16 | Rail vehicle circuit and rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112319520A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030222753A1 (en) * | 2002-06-03 | 2003-12-04 | Chwen-Ru Lin | Automobile safety cutout with a fault indicator |
| US20150092311A1 (en) * | 2013-09-30 | 2015-04-02 | Abb Technology Ag | Methods, systems, and computer readable media for protection of direct current building electrical systems |
| CN108766854A (en) * | 2018-06-04 | 2018-11-06 | 佛山市同鑫智能装备科技有限公司 | A kind of processing technology of the fusible link insulating base of energy-saving safe |
| CN109263476A (en) * | 2018-08-28 | 2019-01-25 | 黄山泰客轨道电气有限公司 | Trolley coach power supply line protective device |
| CN211335595U (en) * | 2019-12-31 | 2020-08-25 | 沈阳兴华华亿轨道交通电器有限公司 | Circuit protection device |
-
2020
- 2020-10-16 CN CN202011108666.0A patent/CN112319520A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030222753A1 (en) * | 2002-06-03 | 2003-12-04 | Chwen-Ru Lin | Automobile safety cutout with a fault indicator |
| US20150092311A1 (en) * | 2013-09-30 | 2015-04-02 | Abb Technology Ag | Methods, systems, and computer readable media for protection of direct current building electrical systems |
| CN108766854A (en) * | 2018-06-04 | 2018-11-06 | 佛山市同鑫智能装备科技有限公司 | A kind of processing technology of the fusible link insulating base of energy-saving safe |
| CN109263476A (en) * | 2018-08-28 | 2019-01-25 | 黄山泰客轨道电气有限公司 | Trolley coach power supply line protective device |
| CN211335595U (en) * | 2019-12-31 | 2020-08-25 | 沈阳兴华华亿轨道交通电器有限公司 | Circuit protection device |
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Application publication date: 20210205 |