Electric highway pantograph body insulation structure

Abstract

The application discloses an electrified highway pantograph body insulation structure, which comprises an insulation upper arm and an upper guide rod, the insulation upper arm comprises upper arm one, an insulation arm and upper arm two which are sequentially connected; and the upper guide rod is an insulation structure made of insulation material. The pantograph body is effectively divided into an electrical area and a non-electrical area by adopting the method of using insulation material for the upper guide rod of the pantograph body and integrating the upper arm into an insulation body. When the pantograph works, the upper part of the upper arm insulation body to the pantograph head part is an electrified area, and the lower part of the upper arm insulation body to the bottom frame part is a non-electrical area. The positive and negative insulation cables are respectively connected with the wiring board of the electrified area of the upper part of the upper arm, current is transmitted to the vehicle traction system, and an electrical loop is formed. No additional insulator structure is needed, the upper part mass of the pantograph spring is reduced, the current collection performance of the pantograph is improved, the weight of the pantograph body is reduced, and the vehicle traction energy consumption is reduced.

Description

Technical Field

[0001] This invention relates to a pantograph for highways, and more particularly to an insulation structure for the pantograph body of an electrified highway pantograph. Background Technology

[0002] When electrified highway vehicles use pantographs to collect current, since highway vehicles cannot achieve circuit return through wheel-rail connections with the overhead contact line and road surface like high-speed trains, electrified highway pantographs need to be equipped with positive and negative contact lines. After the pantograph draws current from the contact line, it first needs to transmit the current to the vehicle's traction system, and then the current flows back to the contact line to form an electrical circuit. Furthermore, the positive and negative parts of the pantograph body need to be effectively insulated to effectively prevent short circuits between the pantographs and ensure that the entire current collection circuit of the vehicle forms an effective circuit.

[0003] Existing technology:

[0004] On the one hand, the way to solve the insulation of positive and negative poles of pantographs on electrified highways is usually to add an insulator structure to the upper part of the pantograph head suspension spring. This method will increase the mass of the upper part of the pantograph head suspension spring, which will affect the current collection performance of the pantograph-catenary system.

[0005] On the other hand, when traditional electrified highway pantographs use insulators at the pantograph head for insulation, the insulated cable needs to be laid from the pantograph base frame all the way to the carbon sliding plate at the pantograph head. The insulated cable is laid for a long time, and many cable fixing points need to be set on the pantograph body, which increases the complexity of the structure.

[0006] In view of this, the present invention is hereby proposed. Summary of the Invention

[0007] The purpose of this invention is to provide an insulation structure for the pantograph body of an electrified highway, so as to solve the above-mentioned technical problems existing in the prior art.

[0008] The objective of this invention is achieved through the following technical solution:

[0009] The electrified highway pantograph insulation structure of the present invention is characterized in that it includes an insulating upper arm and an upper guide rod 4, wherein the insulating upper arm includes an upper arm 1, an insulating arm 2, and an upper arm 3 connected in sequence;

[0010] The upper guide rod 4 is an insulating structure made of insulating material.

[0011] Compared with the prior art, the electrified highway pantograph insulation structure provided by the present invention insulates the upper arm and upper guide rod components of the pantograph, thus solving the problem of insulation between the positive and negative poles of the pantograph.

[0012] This invention features an insulated pantograph body design, eliminating the need for additional insulators. It cleverly utilizes the characteristics of the upper arm and upper guide rod structures for insulation. This design not only solves the insulation problem of the positive and negative poles of the pantograph body on electrified highways, but also reduces the pantograph's weight by decreasing the length of the insulated cable, thereby reducing the vehicle's energy consumption. This meets the current collection requirements of vehicles on electrified highways.

[0013] This invention integrates insulating components into the inherent bow structure of the pantograph, which ensures that the upper part of the bow head spring is not increased and improves current collection performance.

[0014] This invention employs an insulation design method for the inherent structural components of the bow body, effectively reducing the length of the insulated cable laid on the bow body. The traditional laying path from the base frame to the carbon plate at the bow head is optimized to a path from the base frame to the upper arm terminal board, reducing the number of fixing points for the insulated cable on the bow body, making the bow body structure simpler. At the same time, the reduced cable length helps to reduce the weight of the bow body, thereby reducing the overall vehicle energy consumption. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the insulation structure of the pantograph body for electrified highways provided in an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the electrical and non-electrical regions in an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the insulated upper arm structure according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the composition of the insulated upper arm component according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the cross-section AA of the insulated upper arm connection part in an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the insulating upper guide rod according to an embodiment of the present invention;

[0021] Figure 7 This is a flowchart illustrating the current flow of the pantograph insulation structure in an electrified highway according to an embodiment of the present invention.

[0022] In the picture:

[0023] 1. Upper arm one; 101. Upper arm tube; 102. Terminal block one; 103. Cross tube; 104. Upper arm tube one; 105. Terminal block two; 106. Mounting base one; 107. Mounting hole one; 108. Fastener;

[0024] 2. Insulating arm; 201. Insulating arm mounting platform; 202. Mounting hole two;

[0025] 3. Upper arm II; 301. Upper arm tube II; 302. Connecting plate I; 303. Connecting plate II; 306. Mounting base II;

[0026] 4. Upper guide rod; 401. Insulating rod; 402. Insert; 403. Spherical bearing; 404. Spare nut. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention 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 the present invention, and not all of them, and do not constitute a limitation on the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0028] First, the following explanations are provided for the terms that may be used in this article:

[0029] The term "and / or" means that either or both can be achieved simultaneously. For example, X and / or Y means that it includes both "X" or "Y" as well as the three cases of "X and Y".

[0030] The terms “including,” “comprising,” “containing,” “having,” or other similar semantic descriptions should be interpreted as non-exclusive inclusion. For example, “including a technical feature element (such as raw material, component, ingredient, carrier, dosage form, material, size, part, component, mechanism, device, step, process, method, reaction conditions, processing conditions, parameter, algorithm, signal, data, product or article of manufacture, etc.)” should be interpreted as including not only the expressly listed technical feature element, but also other technical feature elements that are not expressly listed and are well-known in the art.

[0031] The term "composed of" excludes any technical features not expressly listed. When used in a claim, it closes the claim to exclude all technical features other than those expressly listed, except for associated conventional impurities. If the term appears only in a clause of a claim, it limits the claim to the elements expressly listed in that clause; elements recited in other clauses are not excluded from the overall claim.

[0032] Unless otherwise explicitly specified or limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this document according to the specific circumstances.

[0033] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “back,” “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 and simplification of description and do not imply that the device or component 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 document.

[0034] The contents not described in detail in the embodiments of this invention are prior art known to those skilled in the art. Where specific conditions are not specified in the embodiments of this invention, they shall be performed according to conventional conditions in the art or conditions recommended by the manufacturer. Where the manufacturers of the reagents or instruments used in the embodiments of this invention are not specified, they are all conventional products that can be purchased commercially.

[0035] The electrified highway pantograph insulation structure of the present invention includes an insulating upper arm and an upper guide rod 4, wherein the insulating upper arm includes an upper arm 1, an insulating arm 2, and an upper arm 3 connected in sequence.

[0036] The upper guide rod 4 is an insulating structure made of insulating material.

[0037] The upper arm 1 includes:

[0038] The upper arm tube 101 is located at the top of the upper arm 1, and the wiring plate 102 is located on both sides of the upper arm tube 101. The wiring plate 102 is provided with mounting holes for connecting to the flexible cable of the bow head carbon slide plate.

[0039] The upper end of the cross tube 103 is connected to the upper arm tube 101, and the lower end is connected to the upper arm tube 104.

[0040] The lower end of the upper arm tube 104 is provided with a terminal block 105 for connecting to the insulated cable of the bow body. The lower end of the upper arm tube 104 is provided with a mounting base 106, and the mounting base 106 is provided with two mounting holes 107 for connecting to the insulated arm 4.

[0041] The upper arm 3 includes:

[0042] The upper end of the upper arm tube 301 is provided with a mounting base 306 for installation with the insulating arm 2; the lower part is provided with a connecting plate 302 for connection with the lower arm of the pantograph; and the lower end is provided with a connecting plate 303 for connection with the upper guide rod 4.

[0043] The insulating arm 2 includes:

[0044] Insulating arm 2 has insulating arm mounting platforms 201 at both ends, which are used to embed upper arm tube 104 and upper arm tube 201 respectively, forming a hole-shaft mating relationship; the insulating arm mounting platform 201 has mounting hole 202, which is used to mate with the mounting holes on mounting base 106 and mounting base 206.

[0045] The upper guide rod 4 includes an insulating rod 401, and each insulating rod 401 is inlaid with an insert 402. The insert 402 has a threaded hole structure in the middle, which is threadedly connected to the screw on the spherical bearing 403. The nut 404 is located between the insert 402 and the spherical bearing 403 and is used to lock the spherical bearing 403.

[0046] The insulating arm 2 is made of epoxy resin, the insulating rod 401 is made of epoxy glass fiber, and the upper arm 1 and upper arm 2 are made of carbon steel.

[0047] In summary, the insulation structure of the pantograph body for electrified highways in this embodiment of the invention effectively solves the problem of insulation between the positive and negative poles of the pantograph body by adopting an integrated insulating upper guide rod and a segmented insulating upper arm.

[0048] By integrating the insulating components into the inherent bow structure of the pantograph, it is possible to ensure that the upper part of the bow head spring is not increased, thereby improving the current collection performance.

[0049] By adopting the method of insulating the inherent components of the bow body, the length of the insulated cable laid on the bow body is effectively reduced. The traditional laying path from the base frame to the carbon plate of the bow head is optimized to the laying path from the base frame to the upper arm terminal board. This reduces the number of fixing points of the insulated cable on the bow body, making the bow body structure simpler. At the same time, the reduction in the length of the cable laid helps to reduce the weight of the bow body, thereby reducing the energy consumption of the whole vehicle.

[0050] This invention effectively divides the pantograph into an electrical zone and a non-electric zone by using insulating material for the guide rod on the pantograph body and integrating an insulator into the upper arm. When the pantograph is working, the upper part of the upper arm insulator to the pantograph head is the energized zone, and the lower part of the upper arm insulator to the base frame is the non-electric zone. Positive and negative insulated cables are connected to the terminal block in the energized area of ​​the upper arm, respectively, to transmit current to the vehicle's traction system and form an electrical circuit. Without adding an additional insulator structure, the pantograph's spring mass is reduced, which is beneficial for improving the pantograph's current collection performance. Optimizing the conventional electrical terminal block from the pantograph head slide plate to the upper arm terminal block position reduces the fixing points and length of the insulated cables, making the pantograph structure simpler and reducing its weight, which in turn helps reduce vehicle traction energy consumption.

[0051] To more clearly demonstrate the technical solution and its effects provided by the present invention, the embodiments of the present invention will be described in detail below with reference to specific examples.

[0052] This invention integrates the insulator with the upper arm and uses an insulated upper guide rod, dividing the pantograph into an electrical region above the insulator and a non-electrical region below the insulator during operation, thus ensuring the electrical insulation performance of adjacent pantograph bodies on electrified highways. The pantograph structure specifically includes a head, upper arm, upper guide rod, lower arm, lower guide rod, and base frame. The pantograph insulation method described in this invention is mainly achieved through the insulation design of the upper arm and upper guide rod in the pantograph body assembly.

[0053] Example 1

[0054] like Figures 1 to 7 As shown:

[0055] The electrified highway pantograph insulation structure of this embodiment integrates the insulator with the pantograph components. The pantograph is insulated from the current through the insulated upper arm 3 and the upper guide rod 4.

[0056] Upper arm 1 includes upper arm tube 101, terminal block 102, cross tube 103, upper arm tube 104, terminal block 2 105, mounting base 106, and mounting hole 107.

[0057] Insulating arm 2 includes insulating arm mounting platform 201 and mounting hole 202.

[0058] Upper arm 2 3 includes upper arm tube 2 301, connecting plate 1 302, and connecting plate 2 303.

[0059] The upper guide rod 4 includes an insulating rod 401, an insert 402, a spherical bearing 403, and a spare nut 404.

[0060] The insulating arm 2 is connected to the upper arm 1 and upper arm 2 3 by inserting the insulating arm mounting platform 201 into the cylindrical cavity of the upper arm 1 and upper arm 2 3. The mounting hole 202 on the insulating arm 2 is aligned with the mounting hole 107 on the upper arm 1 and the mounting hole 107 on the upper arm 2 3, respectively. After fasteners 108 pass through the mounting holes 107 and 202 on the mounting base 106, the insulating arm 2 is fixedly connected to the upper arm 1 and upper arm 2 3, respectively. The insert 402 is connected to both ends of the insulating rod 401 by press fitting. The spherical bearing 403 is connected to the insert 402 by thread. The spherical bearing 403 is locked onto the insert 402 by the nut 404, forming the upper guide rod 4 with insulation function.

[0061] The upper arm 1 is connected to the pantograph head, and the upper arm 2 3 is connected to the lower arm of the pantograph. The upper arm structure of the pantograph is electrically insulated by setting an insulating arm 2 in the middle of the upper arm 1 and the upper arm 2 3. One end of the upper guide rod 4 is connected to the pantograph head, and the other end is connected to the lower arm of the pantograph, which serves to keep the pantograph head horizontal. The upper guide rod 4 is electrically insulated by using an insulating rod 401 in the middle. When the pantograph collects current, the two ends of the pantograph are in contact with the positive and negative contact wires respectively. The area of ​​the pantograph ends is the electrical area. When the current flows from the pantograph ends through the upper guide rod 4 and the upper arm 1 connected to the pantograph ends, the current cannot flow through the pantograph body because the upper guide rod 4 is equipped with an insulating rod 401 and the upper arm 1 and the upper arm 2 are equipped with an insulating arm 2. The pantograph body forms an electrical area and a non-electrical area, so that the pantograph body that collects current in contact with the positive and negative contact wires is effectively insulated from the positive and negative currents, effectively solving the problem of short circuits caused by the positive and negative pantograph bodies conducting. When the pantograph on an electrified highway is in operation, the current flows from the carbon sliding plate 1 on the positive terminal of the pantograph body to the terminal block 102 on the upper arm 1 via a flexible connecting wire. After flowing through the terminal block 105 on the upper arm 1, the current is transmitted to the vehicle traction system through an insulated cable to drive the vehicle motor and move the vehicle. The current then flows through the insulated cable to the terminal block 105 on the upper arm 1 of the negative terminal pantograph body and then to the terminal block 102. The terminal block 102 is connected to the carbon sliding plate 2 via a flexible connecting wire, and the current flows back to the negative terminal contact wire through the carbon sliding plate 2, forming an effective electrical working circuit.

[0062] The beneficial effects of the technical solution of this invention are as follows:

[0063] The present invention relates to an insulation structure for the pantograph body of electrified highways. By embedding an insulator in the upper arm of the pantograph and setting the upper guide rod as an insulating rod, the pantograph body is divided into an electrified zone and a de-energized zone during operation, effectively solving the problem of positive and negative pole insulation in electrified highway pantographs. During operation, the upper part of the upper arm insulator to the pantograph head is the electrified zone, and the lower part of the upper arm insulator to the base frame is the de-energized zone. The positive and negative insulated cables are connected to the terminal block in the electrified area of ​​the upper arm, respectively, to transmit current to the vehicle traction system and form an electrical circuit. Without the need for additional insulator structures, the spring mass of the pantograph is reduced, which is beneficial to improving the pantograph's current collection performance. The conventional electrical terminal block is optimized from the pantograph head slide plate to the electrified area of ​​the upper arm, reducing the fixing points and length of the insulated cables, making the pantograph structure simpler, and reducing the pantograph weight, which helps to reduce vehicle traction energy consumption. This invention solves the insulation problem of pantograph bodies for electrified highway vehicles.

[0064] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims. The information disclosed in the background section is intended only to enhance the understanding of the overall background technology of the present invention and should not be construed as an admission or implication in any way that such information constitutes prior art known to those skilled in the art.

Claims

1. An insulation structure for a pantograph body on an electrified highway, characterized in that, Including an insulating upper arm and an upper guide rod (4), the insulating upper arm includes an upper arm one (1), an insulating arm (2), and an upper arm two (3) connected in sequence; The upper guide rod (4) is an insulating structure made of insulating material; The upper arm (1) includes: The upper arm tube (101) is located at the top of the upper arm (1), and the wiring board (102) is located on both sides of the upper arm tube (101). The wiring board (102) is provided with mounting holes for connecting to the flexible cable of the bow head carbon slide plate. The upper end of the cross tube (103) is connected to the upper arm tube (101), and the lower end is connected to the upper arm tube (104); A wiring plate 2 (105) is provided at the lower end of the upper arm tube 1 (104) for connecting with the bow body insulated cable. A mounting base 1 (106) is provided at the lower end of the upper arm tube 1 (104). Two mounting holes 1 (107) are provided on the mounting base 1 (106) for connecting with the insulated arm (2). The upper arm two (3) includes: The upper end of the upper arm tube 2 (301) is provided with mounting base 2 (306) for installation in conjunction with the insulating arm (2); the lower part is provided with connecting plate 1 (302) for connection with the lower arm of the pantograph; the lower end is provided with connecting plate 2 (303) for connection with the upper guide rod (4); The insulating arm (2) includes: Insulating arm (2) has an insulating arm mounting platform (201) at each end, which is used to embed the upper arm tube one (104) and the upper arm tube two (301) respectively, forming a hole-shaft mating relationship; the insulating arm mounting platform (201) has a mounting hole two (202) for mating with the mounting holes on the mounting base one (106) and the mounting base two (306); The upper guide rod (4) includes an insulating rod (401), and each insulating rod (401) is inlaid with an insert (402). The insert (402) has a threaded hole structure in the middle, which is threaded to the screw on the spherical bearing (403). The nut (404) is located between the insert (402) and the spherical bearing (403) and is used to lock the spherical bearing (403). The insulating arm (2) is made of epoxy resin, the insulating rod (401) is made of epoxy glass fiber, and the upper arm one (1) and upper arm two (3) are made of carbon steel.

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