Contact rail, contact rail manufacturing method and vehicle

Abstract

The invention discloses a contact rail, a contact rail manufacturing method and a vehicle, and belongs to the technical field of vehicle engineering. The contact rail comprises a base body which is provided with a plurality of first caulking grooves which are arranged at intervals along a first direction; and the inserts are embedded in the first embedding grooves, and under the condition that the multiple inserts are arranged, the multiple inserts are in contact and electrically connected in sequence in the first direction. The contact rail, the contact rail manufacturing method and the vehicle are diversified in form and specification, good in universality and low in production and use cost.

Description

Technical Field

[0001] This application belongs to the field of rail transit technology, and in particular relates to a contact rail, a contact rail manufacturing method, and a vehicle. Background Technology

[0002] The contact rail system is an important component of the mobile power supply system for urban rail transit, and the contact rail itself is a crucial part of the contact rail system. Compared to traditional overhead contact lines, contact rail power supply offers greater safety and aesthetics.

[0003] With the continuous development of materials science, manufacturing processes and intelligent technologies, the scale of contact rails will continue to expand; however, existing conductive rails are all independently developed and produced by various manufacturers, with different cross-sectional shapes and specifications for the aluminum substrate in contact with the flow layer, and they are usually special accessories that lack universality; on the other hand, the different processes and manufacturing methods of various production companies result in high overall costs. Summary of the Invention

[0004] This application provides a contact rail, a method for manufacturing a contact rail, and a vehicle, aiming to at least partially solve the technical problems of diverse contact rail shapes and specifications, poor versatility, and high production and usage costs in rail transit systems. Therefore, One aspect of this application provides a contact rail, comprising: The substrate has a plurality of first grooves arranged at intervals along a first direction; An insert is embedded in the first slot, and when there are multiple inserts, the multiple inserts are sequentially contacted and electrically connected along the first direction.

[0005] In some embodiments, conductive contact portions are provided on both side walls of the insert in the first direction for making contact electrical connections between adjacent inserts.

[0006] In some embodiments, two adjacent conductive contacts are welded together.

[0007] In some embodiments, the conductive contact portion includes an abutting plane, two adjacent abutting planes abutting each other, and the abutting plane is orthogonal to the first direction.

[0008] In some embodiments, the insert has a second groove, and a limiting boss is provided in the first groove. The limiting boss is embedded in the second groove to restrict the insert from detaching from the first groove.

[0009] In some embodiments, the second groove is a through groove extending along a second direction, which is orthogonal to the first direction.

[0010] In some embodiments, the top of the limiting boss has an enlarged portion, the width of which is greater than the width of the opening of the second groove.

[0011] In some embodiments, in the first direction, the cross-section of the limiting boss is an isosceles trapezoid, and at least a portion of the groove sidewall abuts against the limiting boss.

[0012] Another aspect of this application embodiment also provides a contact rail manufacturing method, including: The insert is extruded and molded; Multiple inserts are embedded into multiple first slots spaced apart, and compacted along the substrate using two side rollers and multiple vertical rollers; Short welding bevels are cut on both sides of the insert in the first direction and then welded to fix them. The outer plane of the insert is precision machined with a small allowance.

[0013] In another aspect of this application, a vehicle is also provided, including: the aforementioned contact rail. The embodiments of this application have at least the following beneficial effects: The contact rail, contact rail manufacturing method, and vehicle provided in this application embodiment include a contact rail comprising a substrate and an insert. The substrate has a plurality of first slots spaced apart along a first direction. The inserts are embedded in the first slots, and when there are multiple inserts, the multiple inserts are sequentially electrically connected along the first direction. It is worth noting that by providing a plurality of first slots spaced apart along the first direction on the substrate, and by being able to flexibly control the specifications of the conductive structure of the contact rail according to the actual needs, the versatility of the contact rail assembly can be improved to a certain extent. Correspondingly, improved versatility also facilitates the establishment of unified standards, facilitates standardized production, and reduces production and application costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the contact rail structure in an embodiment of this application is shown; Figure 2 It shows Figure 1 A schematic diagram of the structure of the substrate in the contact rail; Figure 3 It shows Figure 1A schematic diagram of the structure of the insert in the contact rail; Figure 4 It shows Figure 1 A schematic diagram of the contact rail processing principle.

[0016] Figure label: 1-Base, 11-First groove, 111-Limiting boss, 111a-Enlarged part; 2-Insert, 21-Conductive contact, 211-Abutting plane, 212-Short bevel, 22-Second groove. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0019] This application is described below with reference to the accompanying drawings and specific embodiments: The contact rail is a conductive structure in a rail transit system. Its specifications and shape are often designed by each manufacturer according to their own needs. The components are specific and cannot be used interchangeably, which leads to a variety of contact rail products and high production costs.

[0020] Therefore, this application provides a contact rail, a contact rail manufacturing method, and a vehicle, aiming to solve the technical problems of poor versatility and high cost of contact rails to a certain extent.

[0021] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, the contact rail is a power transmission structure for supplying power to vehicles in a rail transit system, including a base 1 and an insert 2. The insert 2 is a conductive element fixed on the base 1 as a conductive layer. The specifications (usually the width) of the insert 2 can be controlled according to the power transmission parameters to meet the requirements for safe power use.

[0022] To improve the flexibility and adaptability of the selection of the specifications of the insert 2 and to facilitate standardized production, the substrate 1 and the insert 2 can be set as standard structural components, and the matching method of the substrate 1 and the insert 2 can be designed. This allows for flexible control of the number of inserts 2 set on the substrate 1 to adjust the (width) specifications of the conductive layer, thereby meeting the power transmission specifications.

[0023] Specifically, the base 1 has multiple first slots 11 spaced apart along the first direction X to accommodate and fix the inserts 2, thereby arranging the multiple inserts 2 adjacent to each other along the first direction X. Generally, the base 1 is a basic structural component with a certain width and length, and its width direction can be configured as the first direction X.

[0024] The insert 2 can be configured as a standard part with certain specifications, having clear width and length specifications, so that the number of inserts 2 can be determined according to the requirements of power transmission parameters. Then, the multiple inserts 2 are sequentially connected along the first direction X to form multiple rows of inserts with a certain width, and two adjacent inserts 2 abut against each other to establish a stable electrical connection, forming a conductive layer with a certain width.

[0025] It is worth noting that a certain number of the first slots 11 are provided at intervals along the first direction X on the substrate 1, thereby providing a certain degree of adaptability. The insert 2 is a standard part that is adapted to the first slot 11, has a wide range of adaptability, and can be mass-produced uniformly. Therefore, an appropriate number of the inserts 2 can be selected according to the actual power transmission requirements and embedded in the corresponding number of the first slots 11.

[0026] In some embodiments, the width specification of the substrate 1 in the first direction X can also be set to a series of different specifications and multiple models, so that it can be flexibly selected according to actual needs, further improving the standardization of the product, improving its versatility and adaptability, and reducing production and use costs to a certain extent.

[0027] In some embodiments, considering that multiple inserts 2 are arranged side by side and maintain electrical connection, in order to improve the stability of the electrical connection, conductive contact portions 21 can be provided on the two side walls of the inserts 2 in the first direction X. Two adjacent inserts 2 abut against each other through the conductive contact portions 21 and maintain a certain conductive contact surface.

[0028] Generally, the conductive contact portion 21 can occupy at least a portion of the sidewall area, taking into account both contact stability and conductive area.

[0029] In some embodiments, in order to further improve the electrical connection reliability of adjacent inserts 2, two adjacent inserts 2 can be welded and fixed to form a whole, thereby maintaining the stability of the conductive layer width and thus obtaining stable conductivity.

[0030] In some embodiments, in order to balance connection reliability and ease of operation, a short bevel 212 can be directly opened at the conductive contact portion 21 of the insert 2, and then filler wire can be used for welding.

[0031] In some embodiments, in order to balance contact stability and conductivity, the conductive contact portion 21 may include an abutment plane 211, which ensures the stability of the contact state between two adjacent inserts 2 and the stability of the conductive surface through surface-to-surface contact.

[0032] Generally, the abutting plane 211 can be orthogonal to the first direction X, thereby enabling the plurality of inserts 2 to remain stable in the sequential abutting state in the first direction X.

[0033] In some embodiments, in order to maintain the reliability of the connection between the insert 2 and the base 1 and to maintain the stability of the posture and position of the insert 2 in the first groove 11, a second groove 22 can be formed on the insert 2, and a limiting boss 111 can be provided in the first groove 11. The limiting boss 111 is embedded in the second groove 22, thereby restricting the insert 2 from leaving the first groove 11.

[0034] In other words, the operation of the first groove 11, the engagement mechanism of the insert 2, and the engagement structure of the limiting boss 111 and the second groove 22 together stably restrict the insert 2 onto the base 1.

[0035] In some embodiments, the top of the limiting boss 111 has an enlarged portion 111a, and the width of the enlarged portion 111a is greater than the width of the groove of the second recess 22, thereby increasing the difficulty for the enlarged portion 111a to disengage from the second recess 22, which helps to maintain the installation state of the insert 2.

[0036] In some implementations, the first groove 11 and the second groove 22 are oriented in opposite directions, and the limiting boss 111 may be provided at the bottom of the first groove 11.

[0037] Generally, the orientation of the first groove 11 and the second groove 22 can be orthogonal to the first direction X and the second direction; the second direction can be configured as the length direction of the base 1.

[0038] In some embodiments, in order to balance the force on the insert 2 in the first groove 11, the limiting boss 111 can be set as an isosceles trapezoidal boss, that is, the cross section along the first direction X is an isosceles trapezoid, and the supporting force of its two sides on the insert 2 is balanced.

[0039] Generally, each surface of the limiting boss 111 can match and abut against the groove wall of the second groove 22 to limit relative movement and maintain the stability of the posture.

[0040] Similarly, the portion of the surface of the insert 2 located within the first groove 11 abuts against the inner wall of the first groove 11 to limit relative movement and maintain posture stability.

[0041] In some embodiments, the insert 2 may be configured as a C-shaped component, with the slot facing the bottom of the first insert groove 11. The top surface of the insert 2 may be flat, and both sides may be inwardly sloping surfaces with an angle less than 90 degrees. The bottom and sidewalls of the second insert groove 22 are flat, and both sides are also inwardly sloping surfaces with an angle less than 90 degrees. This ensures sufficient contact surface between the insert 2 and the substrate 1, guaranteeing conductivity and contact stability.

[0042] In some embodiments, the second groove 22 can be configured as a through groove that penetrates the insert 2 along the second direction, and the first groove 11 can also be configured as a through groove that penetrates the base 1 along the second direction, so that during assembly, the insert 2 can be pushed along the second direction, so that the insert 2 can be slidably embedded into the first groove 11, and the limiting boss 111 can be embedded into the second groove 22.

[0043] In some embodiments, to reduce the risk of interference between the insert 2 and the limiting boss 11, the edge of the limiting boss 111 can be set into an arc-shaped chamfer, and correspondingly, the corresponding area of ​​the second groove 22 is also set into an arc-shaped recess.

[0044] Another aspect of this application embodiment also provides a contact rail manufacturing method, including: The insert is extruded and molded; Multiple inserts are embedded into multiple first slots spaced apart, and compacted along the substrate using two side rollers and multiple vertical rollers; Short welding bevels are cut on both sides of the insert in the first direction and then welded to fix them. The outer plane of the insert is precision machined with a small allowance.

[0045] In another aspect of this application, a vehicle is also provided, including: the aforementioned contact rail. The embodiments of this application have at least the following beneficial effects: The contact rail, contact rail manufacturing method, and vehicle provided in this application embodiment include a contact rail comprising a substrate and an insert. The substrate has a plurality of first slots spaced apart along a first direction. The inserts are embedded in the first slots, and when there are multiple inserts, the multiple inserts are sequentially electrically connected along the first direction. It is worth noting that by providing a plurality of first slots spaced apart along the first direction on the substrate, and by being able to flexibly control the specifications of the conductive structure of the contact rail according to the actual needs, the versatility of the contact rail assembly can be improved to a certain extent. Correspondingly, improved versatility also facilitates the establishment of unified standards, facilitates standardized production, and reduces production and application costs.

[0046] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. In this application, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction relationship between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. In addition, the descriptions involving "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more of the aforementioned features. In the description of this application, "multiple" means two or more, unless otherwise explicitly and specifically limited.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0050] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0051] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A contact rail, characterized in that, include: The substrate has a plurality of first grooves arranged at intervals along a first direction; An insert is embedded in the first slot, and when there are multiple inserts, the multiple inserts are sequentially contacted and electrically connected along the first direction.

2. The contact rail as described in claim 1, characterized in that, In the first direction, conductive contact portions are provided on both side walls of the insert for contact electrical connection between adjacent inserts.

3. The contact rail as described in claim 2, characterized in that, The two adjacent conductive contacts are welded together.

4. The contact rail as described in claim 2, characterized in that, The conductive contact portion includes an abutting plane, two adjacent abutting planes abutting each other, and the abutting plane is orthogonal to the first direction.

5. The contact rail as described in claim 1, characterized in that, The insert has a second groove, and a limiting boss is provided in the first groove. The limiting boss is embedded in the second groove to prevent the insert from detaching from the first groove.

6. The contact rail as described in claim 5, characterized in that, The second groove is a through groove that extends along a second direction, which is orthogonal to the first direction.

7. The contact rail as described in claim 5, characterized in that, The top of the limiting boss has an enlarged portion, the width of which is greater than the width of the groove of the second slot.

8. The contact rail as described in claim 7, characterized in that, In the first direction, the cross-section of the limiting boss is an isosceles trapezoid, and at least a portion of the groove sidewall abuts against the limiting boss.

9. A method for manufacturing a contact rail, characterized in that, include: The insert is extruded and molded; Multiple inserts are embedded into multiple first slots spaced apart, and compacted along the substrate using two side rollers and multiple vertical rollers; Short welding bevels are cut on both sides of the insert in the first direction and then welded to fix them. The outer plane of the insert is precision machined with a small allowance.

10. A vehicle, characterized in that, include: The contact rail as described in any one of claims 1 to 8.

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