Pantograph conductive structure without supporting insulator

Abstract

The invention discloses a pantograph conductive structure without a supporting insulator. The pantograph conductive structure comprises a conductive rod, a sliding rail group, an upper arm plate and two flexible wire groups, the upper end of the conducting rod is hinged with the upper arm plate, and the lower end is connected to the slide rail group; the upper arm plate is connected with the conducting rod through a flexible wire set, the conducting rod is connected with the sliding rail set through another flexible wire set, and movable connection with the pantograph is achieved. The problem that a current fixed connection transmission mode of a traditional pantograph with a supporting insulator cannot meet the movable current transmission requirement of the pantograph without the supporting insulator is solved, the pantograph can be self-adapted to various states of working or falling of the pantograph, effective current transmission of the pantograph without the supporting insulator is achieved, and electric energy is provided for a vehicle traction system.

Description

Technical Field

[0001] The invention relates to a pantograph conductive structure, in particular to a pantograph conductive structure without a supporting insulator. Background Art

[0002] The pantograph of the traditional insulator-supported pantograph is in a conductive state, and is generally connected to the pantograph chassis wiring board through the roof high-voltage terminal cable for current transmission. When the unsupported insulator pantograph is working, the current of the live part of the pantograph above the insulated pantograph arm needs to be transmitted to the roof high-voltage terminal cable so that the current is transmitted to the vehicle traction system.

[0003] When the pantograph is in the raised state, the carbon sliding plate at the bow head contacts the contact line to receive current. Since both the contact network and the pantograph are in a flexible state, the pantograph will frequently move up and down with the changes in the height of the contact network during operation. At the same time, when the pantograph is in the non-working state with the bow dropped and the working state with the bow raised, the angles between the various rods of the pantograph and the roof plane will change. When matching the conductive structure of the pantograph without support insulators, it is necessary to fully consider the up and down fluctuations of the pantograph during operation and the changes in the position of the bow arm caused by the movement of the rods when the pantograph is in the raised and lowered states. The conductive structure needs to be able to adaptively adjust according to the state of the pantograph.

[0004] The traditional pantograph current transmission method with supporting insulators is a fixed connection form that does not require movement and has no relative position change, which cannot meet the current transmission needs of pantographs without supporting insulators.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a pantograph conductive structure without supporting insulators to solve the above-mentioned technical problems existing in the prior art.

[0007] The objective of the present invention is achieved through the following technical solutions:

[0008] The unsupported insulator pantograph conductive structure of the present invention comprises a conductive rod 1, a slide rail group 3, an upper arm plate 4 and two groups of flexible conductor groups 2;

[0009] The upper end of the conductive rod 1 is hinged to the upper arm plate 4, and the lower end is connected to the slide rail group 3;

[0010] The upper arm plate 4 is connected to the conductive rod 1 via a group of flexible conductive wires 2 , and the conductive rod 1 is connected to the slide rail group 3 via another group of flexible conductive wires 2 .

[0011] Compared with the prior art, the pantograph conductive structure without supporting insulators provided by the present invention eliminates the supporting insulators with a high weight and a high proportion of the bottom resistance of the pantograph, and integrates the insulator with the pantograph arm to achieve electrical insulation between the pantograph and the roof, thereby reducing the running resistance and energy consumption of the new high-speed EMU.

[0012] It can realize active connection with the pantograph, adapt to the pantograph working or bow dropping states, realize effective transmission of pantograph current without supporting insulators, and provide power for the vehicle traction system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A diagram showing the overall composition of the conductive structure of a pantograph without a support insulator provided in an embodiment of the present invention;

[0014] Figure 2 It is a diagram of the components of the conductive structure of the pantograph without support insulator according to an embodiment of the present invention;

[0015] Figure 3 It is a schematic diagram of the working state of the maximum pantograph height of the pantograph conductive structure without support insulators according to an embodiment of the present invention;

[0016] Figure 4 It is a schematic diagram of a non-working state of a pantograph conductive structure without a supporting insulator in a pantograph falling position according to an embodiment of the present invention;

[0017] In the figure, 1. conductive rod; 10. guide rod; 11. terminal block 2; 12. joint bearing 1; 13. joint bearing 2; 2. wire group; 20. wire 1; 21. wire 2; 22. wire 3, 23. wire 4; 3. slide rail group; 30. terminal block 3; 31. slider; 32. slide rail; 33. terminal block; 34. insulating column; 4. upper arm plate; 40. terminal block 1; 41. fixed shaft. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, which does not constitute a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0019] First, the terms that may be used in this article are explained as follows:

[0020] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0021] The term "consisting of..." means excluding any technical feature elements not explicitly listed. If this term is used in a claim, it will make the claim closed, so that it does not contain technical feature elements other than the technical feature elements explicitly listed, except for the conventional impurities related to them. If this term only appears in a clause of a claim, it only limits the elements explicitly listed in the clause, and the elements recorded in other clauses are not excluded from the overall claim.

[0022] Unless otherwise specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0023] The orientation or position relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience and simplification of description, and do not explicitly or implicitly indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation of this document.

[0024] The contents not described in detail in the examples of the present invention belong to the prior art known to professionals in the field. If no specific conditions are specified in the examples of the present invention, the conditions are carried out according to the conventional conditions in the field or the conditions recommended by the manufacturer. If the manufacturer is not specified in the reagents or instruments used in the examples of the present invention, they are all conventional products that can be purchased commercially.

[0025] The unsupported insulator pantograph conductive structure of the present invention comprises a conductive rod 1, a slide rail group 3, an upper arm plate 4 and two groups of flexible conductor groups 2;

[0026] The upper end of the conductive rod 1 is hinged to the upper arm plate 4, and the lower end is connected to the slide rail group 3;

[0027] The upper arm plate 4 is connected to the conductive rod 1 via a group of flexible conductive wires 2 , and the conductive rod 1 is connected to the slide rail group 3 via another group of flexible conductive wires 2 .

[0028] The conductor group 2 includes a conductor 1 20, a conductor 21, a conductor 3 22, and a conductor 4 23. The conductor 1 20 and the conductor 2 21 are designed to be redundant with each other, and the conductor 3 22 and the conductor 4 23 are designed to be redundant with each other.

[0029] The conductive rod 1 comprises a guide rod 10 , two ends of which are respectively connected to a joint bearing 1 12 and a joint bearing 2 13 , and a connection plate 2 11 is respectively welded to the upper and lower parts of the guide rod 10 .

[0030] The slide rail assembly 3 includes a slide rail 32, a slide block 31 is provided in a slide groove of the slide rail 32, and the slide rail 32 is provided with a wiring board 30, a wiring seat 33, and an insulating column 34;

[0031] The second spherical bearing 13 is mounted on the slider 31 .

[0032] The upper arm plate 4 is provided with a terminal plate 40 and a fixed shaft 41 , and the spherical bearing 12 is installed on the fixed shaft 41 .

[0033] The second terminal block 11 at the upper part of the guide rod 10 is connected to one end of the first wire 20 and the second wire 21 through a fastener, and the second terminal block 11 at the lower part is connected to one end of the third wire 22 and the fourth wire 23 through a fastener.

[0034] The other ends of the wire 1 20 and the wire 2 21 are connected to the terminal block 1 40 on the upper arm plate 4 through fasteners;

[0035] The other ends of the wire three 22 and the wire four 23 are connected to the terminal block three 30 on the slide rail assembly 3 through fasteners.

[0036] The wiring seat 33 is located at the rear of the slide rail group 3 and has a mounting hole for connecting with the vehicle terminal cable. The top of the insulating column 34 is connected to the frame of the fixed slide rail 32, and the bottom of the insulating column 34 is connected to the top of the vehicle.

[0037] In summary, the unsupported insulator pantograph conductive structure of the embodiment of the present invention is installed on the roof and is movably connected to the pantograph. It can be adaptively adjusted with the pantograph in various states of raising and lowering the pantograph, so that the unsupported insulator pantograph can transmit current to the high-voltage terminal cable on the roof through the pantograph conductive structure, thereby providing power for the vehicle traction system.

[0038] The conductive structure of the pantograph without support insulators is equipped with a slide rail group on the top of the vehicle at the tail end of the pantograph, which is connected to the upper arm plate of the live area of ​​the pantograph through a conductive rod and a wire group, so as to realize a movable connection with the pantograph, solves the problem that the fixed connection transmission mode of the traditional pantograph with support insulators cannot adapt to the movable current transmission needs of the pantograph without support insulators, realizes a movable connection with the pantograph, can adapt to various states of the pantograph working or dropping, realizes effective current transmission of the pantograph without support insulators, and provides electric energy for the vehicle traction system.

[0039] In order to more clearly demonstrate the technical solution and technical effects provided by the present invention, the embodiments of the present invention are described in detail with specific embodiments below.

[0040] Example 1

[0041] like Figures 1 to 4 As shown:

[0042] A pantograph conductive structure without supporting insulators comprises a conductive rod 1, a conductor group 2, a slide rail group 3 and an upper arm plate 4.

[0043] The conductive rod 1 is a rod connection structure, which is located between the slide rail group 3 and the upper arm plate 4, and is used to transmit current from the upper arm plate 4 to the slide plate group 3 when the pantograph is working. It includes a guide rod 10, a terminal block 11, a joint bearing 12, and a joint bearing 13. The two ends of the guide rod 10 are respectively connected to the joint bearing 12 and the joint bearing 13. The joint bearing 12 is connected to the fixed shaft 41, and the joint bearing 13 is connected to the slider 31. The terminal block 11 is welded to the guide rod 10 and is respectively located at the upper and lower parts of the guide rod 10, wherein the upper wire plate 11 is connected to one end of the wire 1 20 and the wire 2 21 by fasteners, and the lower wire plate 11 is connected to one end of the wire 3 22 and the wire 4 23 by fasteners.

[0044] A wire group 2, wherein the wire group 2 includes a wire 1 20, a wire 2 21, a wire 3 22, and a wire 4 23. The wire 1 20 and the wire 2 21 are designed to be redundant with each other, and the wire 3 22 and the wire 4 23 are designed to be redundant with each other to prevent a single wire from being broken and unable to transmit current normally. One end of the wire 1 20 and the wire 2 21 are connected to the terminal board 1 40 on the upper arm plate 4 by fasteners, and the other end of the wire 1 20 and the wire 2 21 are connected to the upper terminal board 2 11 on the guide rod 10 by fasteners, which are used to transmit the current of the pantograph upper arm plate 4 to the guide rod 10. One end of the wire 3 22 and the wire 4 23 are connected to the lower terminal board 2 11 on the guide rod 10 by fasteners, and the other end of the wire 3 22 and the wire 4 23 are connected to the terminal board 3 30 on the slide rail group 3 by fasteners, which are used to transmit the current of the guide rod 10 to the terminal seat 33.

[0045] The slide rail group 3 includes a terminal board 30, a slider 31, a slide rail 32, a terminal seat 33, and an insulating column 34. When the pantograph is raised or lowered, the slide rail group 3 provides movement guidance for the conductive rod 1 and has a high-voltage insulation function. The terminal board 30 is respectively connected to one end of the conductor 3 22 and the conductor 4 23 through a fastening assembly, and is used to transmit the current of the conductor 3 22 and the conductor 4 23 to the terminal seat 33. The slider 31 is connected to the joint bearing 2 13 and fixed in the slide rail 32. The inner wall of the slide groove of the slide rail 32 contacts the slider 31, and is used to provide a guiding movement path for the slider 31. The terminal seat 33 is located at the tail of the slide rail group 3, and is provided with a mounting hole connected to the vehicle terminal cable, and is used to transmit current to the vehicle terminal cable. The top of the insulating column 34 is connected to the frame of the fixed slide rail 32, and the bottom of the insulating column 34 is connected to the top of the vehicle, and is used to perform high-voltage insulation between the charged area of ​​the slide rail group 3 at the top of the insulating column 34 and the roof.

[0046] The upper arm plate 4 includes a terminal plate 40 and a fixed shaft 41. The terminal plate 40 is connected to one end of the conductor 20 and the conductor 21 through a fastening assembly, respectively, and is used to transmit the current of the upper arm to the conductor 20 and the conductor 21 when the pantograph is working. The fixed shaft 41 is connected to the joint bearing 12 and then fixed to the middle connecting hole of the upper arm plate 4, and is used to provide a movable hinge for the upper part of the conductive rod 1.

[0047] When the pantograph is in a lowered state, the joint bearing 13 at the lower part of the conductive rod 1 is at position B in the slide rail 32. When the pantograph is at its maximum raised working height, the joint bearing 13 at the lower part of the conductive rod 1 is at position A in the slide rail 32. When the pantograph is working normally, the joint bearing 13 at the lower part of the conductive rod 1 is within the range between position A and position B in the slide rail 32.

[0048] When the pantograph receives the vehicle's pantograph raising signal and gradually rises from the pantograph-lowered non-working state until the pantograph head slide plate contacts the contact line, the connection between the upper part of the conductive rod 1 and the upper arm plate 4 rises with the pantograph, and the joint bearing 2 13 at the lower part of the conductive rod 1 gradually moves from the position B in the pantograph-lowered state to the position A in the slide rail 32, and the angle α between the conductive rod and the horizontal plane increases accordingly until the pantograph head carbon slide plate contacts the contact line.

[0049] During the operation of the vehicle, the carbon slide plate of the pantograph contacts the contact network to collect current. The current is transmitted to the conductive rod 1 through the pantograph bow head and the upper arm plate 4 conductor group 2. After the current is transmitted to the slide rail group 3 through the conductor group 2, the current is transmitted to the vehicle traction system through the vehicle terminal cable connected to the terminal block 33 on the slide rail group 3 to provide kinetic energy for the EMU. During the operation of the pantograph, since the contact line and the pantograph are both flexible systems, the pantograph will also move up and down when the height of the contact line changes. The upper part of the conductive rod 1 connected to the upper arm plate 4 will also move up and down with the upper arm plate 4. The lower part of the conductive rod 1 will reciprocate between the small area within the range of point A and point B in the slide rail 32, realizing the function of up and down movement of the conductive structure adaptive pantograph in the working project.

[0050] When the pantograph receives the pantograph lowering signal from the vehicle and gradually descends from the working state to the pantograph lowering position, the connection between the upper part of the conductive rod 1 and the upper arm plate 4 moves with the pantograph descending, and the joint bearing 2 13 at the lower part of the conductive rod 1 gradually moves from the working state A and B range to the pantograph lowering state B position in the slide rail 32, and the angle α between the conductive rod and the horizontal plane decreases accordingly, until the pantograph is completely lowered and the joint bearing 2 13 at the lower part of the conductive rod 1 reaches the B position in the slide rail 32.

[0051] The unsupported insulator pantograph conductive structure of the present invention realizes active connection with the pantograph, can adapt to various states of the pantograph working or bow dropping, realizes effective transmission of current of the unsupported insulator pantograph, and provides electric energy for the vehicle traction system.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims. The information disclosed in the background technology section of this article is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or in any form that the information constitutes prior art known to those skilled in the art.

Claims

1. A pantograph conductive structure without supporting insulators, characterized in that: It comprises a conductive rod (1), a slide rail group (3), an upper arm plate (4) and two groups of flexible conductor groups (2); The upper end of the conductive rod (1) is hinged to the upper arm plate (4), and the lower end is connected to the slide rail assembly (3); The upper arm plate (4) and the conductive rod (1) are connected via a group of flexible wires (2), and the conductive rod (1) and the slide rail group (3) are connected via another group of flexible wires (2).

2. The pantograph conductive structure without supporting insulator according to claim 1, characterized in that: The conductor group (2) comprises a conductor one (20), a conductor two (21), a conductor three (22), and a conductor four (23); the conductor one (20) and the conductor two (21) are designed to be redundant with each other, and the conductor three (22) and the conductor four (23) are designed to be redundant with each other.

3. The pantograph conductive structure without supporting insulator according to claim 2, characterized in that: The conductive rod (1) comprises a guide rod (10), the two ends of which are respectively connected to a first joint bearing (12) and a second joint bearing (13), and the upper and lower parts of the guide rod (10) are respectively welded with a second terminal block (11).

4. The pantograph conductive structure without supporting insulator according to claim 3, characterized in that: The slide rail assembly (3) comprises a slide rail (32), a slide block (31) is arranged in a slide groove of the slide rail (32), and the slide rail (32) is provided with a wiring board (30), a wiring seat (33), and an insulating column (34); The second joint bearing (13) is mounted on the slide block (31).

5. The pantograph conductive structure without supporting insulator according to claim 4, characterized in that: The upper arm plate (4) is provided with a connection plate (40) and a fixed shaft (41), and the joint bearing (12) is installed on the fixed shaft (41).

6. The pantograph conductive structure without supporting insulator according to claim 5, characterized in that: The second terminal block (11) on the upper part of the guide rod (10) is connected to one end of the first conductor (20) and the second conductor (21) through a fastener, and the second terminal block (11) on the lower part is connected to one end of the third conductor (22) and the fourth conductor (23) through a fastener. The other ends of the wire 1 (20) and the wire 2 (21) are connected to the terminal block 1 (40) on the upper arm plate (4) via fasteners; The other ends of the wire three (22) and the wire four (23) are connected to the terminal block three (30) on the slide rail assembly (3) via fasteners.

7. The pantograph conductive structure without supporting insulator according to claim 4, characterized in that: The wiring seat (33) is located at the rear of the slide rail assembly (3) and has a mounting hole for connecting with the vehicle terminal cable. The top of the insulating column (34) is connected to the frame of the fixed slide rail (32), and the bottom of the insulating column (34) is connected to the top of the vehicle.

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