Mobile overhead line power supply device with arc elimination function and mobile overhead line

Abstract

The application relates to a mobile contact net power supply device with arc elimination function and a mobile contact net, which is applied to the field of mobile contact nets and comprises a power supply structure used for disconnecting or conducting the mobile contact net; the power supply structure is used for electrically connecting the load-bearing cable and / or contact wire conductor in a fixed or mobile contact net with the load-bearing cable and / or contact wire conductor in another contact net; the mobile contact net power supply device has the arc elimination function; the power supply structure body has the arc elimination function, or an arc elimination structure is additionally arranged and used for eliminating the arc of the power supply structure. The device can effectively eliminate the arc, reduce the generation of the arc phenomenon, ensure the electrical safety of the power supply device, reduce the damage of the arc to the power supply device, improve the safety of the mobile contact net, and prolong the service life.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of electrified railway mobile contact network, and particularly relates to a mobile contact network power supply device with arc extinguishing function and a mobile contact network. BACKGROUND

[0002] Arc is a phenomenon of light emission, heat generation, molecular change and accompanying sound of 'papapap' when current passes through air. In the case of certain voltage and air quality, the closer the distance between two contacts, the smaller the resistance, the greater the current, the greater the power, and the stronger the arc.

[0003] The mobile contact network is an electrical device for supplying power to freight trains arranged at a freight loading and unloading station. When the mobile contact network moves above the railway, the freight vehicle drives into or out of the platform. When the mobile contact network moves to the side of the railway to leave space above the railway, the freight train can carry out loading and unloading operations or maintenance operations. The existing mobile contact network is generally provided with a portal at both ends, and the mobile contact network is generally powered by the portal through an electrical connection device.

[0004] The existing related technology at least has the following disadvantages:

[0005] 1) There is no arc extinguishing device for protecting the electrical connection device in the existing mobile contact network.

[0006] 2) The mobile trolley on the portal of the existing mobile contact network moves in a straight line at a predetermined speed. When the trolley device at the portal of the existing mobile contact network moves close to or away from the fixed anchor device on the portal, the electrical connection device will produce a pull arc phenomenon at a distance before conduction or at a distance after disconnection, which will damage the electrical device.

[0007] 3) The mobile trolley in the existing mobile contact network moves at a predetermined speed. The electrical device needs to withstand the damage caused by arc at a distance before conduction or at a distance after disconnection. SUMMARY

[0008] Therefore, the purpose of the present application is to overcome the shortcomings of the existing related technology and provide a mobile contact network device with arc extinguishing function to solve the problems existing in the prior art.

[0009] To achieve the above technical solutions, the technical scheme adopted by the present application is as follows: a mobile contact network power supply device with arc extinguishing function, which is applied to the field of mobile contact network and comprises a power supply structure for disconnecting or conducting the mobile contact network; the power supply structure is used to realize electrical connection between the load cable and / or contact line conductor in one fixed or mobile contact network and the load cable and / or contact line conductor in another mobile contact network.

[0010] The power supply device has arc extinguishing function.

[0011] The power supply structure body has an arc extinguishing function, or

[0012] An arc extinguishing structure is additionally provided, and the arc extinguishing structure is used for arc extinguishing of the power supply structure.

[0013] Further, the arc extinguishing structure has a structure capable of rapid disengagement.

[0014] Further, during movement of the moving contact network to the working position, the arc extinguishing structure is first turned on, and then the power supply structure is turned on; during movement of the moving contact network to the non-working position, the power supply structure is turned off, and then the arc extinguishing structure can be rapidly disengaged.

[0015] Further, the structure capable of rapid disengagement is integrally arranged with the power supply structure or is separately arranged.

[0016] Further, the power supply structure adopts a plug-in power supply structure, the plug-in power supply structure includes a male plug part and a female plug part, the structure capable of rapid disengagement includes a contact surface arranged in the male plug part and the female plug part, and the contact surface of the male plug part and the contact surface of the female plug part can be rapidly disengaged.

[0017] Further, the female plug part has an inwardly recessed contact surface, and the male plug part has an outwardly protruding contact surface matched with the female plug part.

[0018] Further, the inwardly recessed contact surface is a conical recessed surface, and the outwardly protruding contact surface is a conical protruding surface.

[0019] Further, the male plug part is a cylindrical structure, and a contact end part has a conical protrusion, the female plug part is a cylindrical structure, and a contact end part has a recessed surface matched with the conical protrusion.

[0020] Further, the arc extinguishing structure includes an arc extinguishing assembly and an arc extinguishing switching assembly; wherein

[0021] The arc extinguishing assembly includes an arc extinguishing piece, and the arc extinguishing piece is configured to have a rebounding force;

[0022] The arc extinguishing switching assembly can be moved close to or away from the arc extinguishing assembly;

[0023] During movement of the arc extinguishing switching assembly away from the arc extinguishing assembly, the arc extinguishing piece can be rapidly disengaged from the arc extinguishing switching assembly.

[0024] Further, the arc extinguishing assembly further includes a rebounding force providing piece; during movement of the arc extinguishing switching assembly away from the arc extinguishing assembly, the arc extinguishing piece can be rapidly disengaged from the arc extinguishing switching assembly through the rebounding force providing piece.

[0025] Further, the arc extinguishing assembly further comprises a rotating member; the arc extinguishing member is connected with the rotating member.

[0026] Further, the rotating member comprises a rotating shaft, and the resilient force providing member comprises a torsion spring, which is sleeved outside the rotating shaft.

[0027] Further, the arc extinguishing assembly further comprises an unhooking member, and the arc extinguishing member is capable of being rapidly separated from the unhooking member by the resilient force providing member. The unhooking member is obliquely arranged on the switching member.

[0028] Further, the arc extinguishing assembly further comprises a switching member, and the unhooking member is arranged on the switching member or the arc extinguishing member.

[0029] Further, the power supply structure adopts a plug-in power supply structure, which comprises a plug-in male part and a plug-in female part; wherein

[0030] The plug-in female part comprises an opening adjusting structure;

[0031] The opening adjusting structure is used for adjusting the opening of the plug-in female part.

[0032] Further, the opening adjusting structure comprises a locking mechanism and an elastic member;

[0033] The locking mechanism is used for adjusting the elastic member so as to increase or decrease the opening degree of the plug-in female part.

[0034] Further, the plug-in female part comprises at least oppositely arranged clamping plates, which form the opening of the plug-in female part, and the elastic member is connected with at least one clamping plate.

[0035] Further, the locking mechanism penetrates through the oppositely arranged clamping plates, and the locking mechanism is screwed or loosened so as to adjust the opening degree of the plug-in female part.

[0036] Further, the power supply structure comprises a power taking structure and a metal member with a power taking area, and the power taking structure slides to take power on the metal member.

[0037] Further, the power taking surface in the metal member with the power taking area is adapted to the running track of the power taking structure.

[0038] Further, the power taking surface in the metal member is a plane or an arc surface; when the power taking structure moves linearly, the power taking structure slides to take power on the metal member with the plane; when the running track of the power taking structure is an arc line, the power taking structure slides to take power on the metal member with the arc surface.

[0039] Further, the first support is used for fixing the metal piece, and the second support is used for fixing the power taking structure.

[0040] The first support is directly or indirectly arranged on the portal part, and the second support is directly or indirectly arranged on the rotating wrist arm.

[0041] The first support is directly or indirectly arranged on the rotating wrist arm, and the second support is directly or indirectly arranged on the portal part.

[0042] In addition, the application further provides a mobile contact network using the mobile contact network power supply device.

[0043] Further, the elastic resistance device is used for resisting the further movement of the rotating wrist arm after the power taking structure is connected.

[0044] The mobile contact network power supply device has the arc extinguishing function. During the movement of the mobile contact network to the working position, the arc extinguishing structure is first connected, and then the power taking structure is connected. During the movement of the mobile contact network to the non-working position, the power taking structure is disconnected, and then the arc extinguishing structure is rapidly separated. The mobile contact network device has the arc extinguishing device, effectively reducing the damage of the arc to the power taking structure. The biggest advantage of the device is that the arc extinguishing assembly and the arc extinguishing sub-assembly are used to contact the power taking structure at a distance before the power taking structure is connected. The arc extinguishing assembly uses the point contact mode, effectively reducing the contact surface. After the arc extinguishing assembly and the arc extinguishing sub-assembly are connected, the power taking structure will not produce the arc phenomenon during the further close process. Similarly, after the power taking structure is disconnected, the arc extinguishing assembly and the arc extinguishing sub-assembly are kept in electrical connection, and the power taking structure will not produce the arc phenomenon during the further away process. The arc extinguishing assembly is configured to have the rebound force. After moving a certain distance, the arc extinguishing assembly can rapidly separate from the arc extinguishing sub-assembly. The device can effectively extinguish the arc, reduce the arc phenomenon, ensure the electrical safety of the power supply device, reduce the damage of the arc to the power supply device, and improve the safety of the mobile contact network and prolong the service life. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0046] Figure 1 is a structural schematic diagram of a first embodiment of the present application;

[0047] Figure 2 is a structural schematic diagram of an arc extinguishing assembly of the present application;

[0048] Figure 3 is a structural schematic diagram of an arc extinguishing assembly of the present application;

[0049] Figure 4 is a structural schematic diagram of an arc extinguishing assembly of the present application;

[0050] Figure 5 is a structural schematic diagram of an arc extinguishing assembly of the present application;

[0051] Figure 6 is a structural schematic diagram of an arc extinguishing assembly of the present application;

[0052] Figure 7A is a schematic diagram of the state of the arc extinguishing structure when the power supply structure of the plug-in connector is connected;

[0053] Figure 7B is a schematic diagram of the arc extinguishing structure about to be rapidly separated after the power supply structure of the plug-in connector is disconnected and moved for a distance;

[0054] Figure 7C is Figure 7B a schematic diagram of the state after further moving and separating;

[0055] Figure 8 is a schematic diagram of the female plug part of the plug-in connector power supply structure of the present application;

[0056] Figure 9 is a schematic diagram of the plug-in connector power supply structure of the present application;

[0057] Figure 10 is a schematic diagram of the power supply structure of the present application with a metal part and a power taking structure;

[0058] Figure 11 is a schematic diagram of the power supply structure of the present application with a metal part and a power taking structure;

[0059] Figure 12A is a schematic diagram of the plug-in connector power supply structure with an arc extinguishing function in a moving catenary application;

[0060] Figure 12B is Figure 12A schematic view of section A-A in figure

[0061] Figure 12C is Figure 12A schematic view of section B-B in figure

[0062] Figure: 1, male plug part; 2, female plug part; 3, tapered convex surface; 4, tapered concave surface; 5, arc extinguishing assembly; 51, arc extinguishing piece; 52, rotating piece; 53, spring force providing piece; 54, fixing piece; 55, connecting piece; 6, arc extinguishing opening and closing assembly; 61, opening and closing piece; 62, unhooking piece; 63, welding frame; 7, plug-in part of plug-in piece; 8, female plug part of plug-in piece; 9, support of plug-in piece; 10, locking mechanism; 101, spring; 102, spring shaft; 11, elastic piece; 12, first clamping plate; 13, second clamping plate; 14, sleeve; 15, rotating wrist arm; 16, insulator; 17, support frame; 18, metal piece; 19, power taking structure; 20, first support. DETAILED DESCRIPTION

[0063] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent the same or similar elements. The following exemplary embodiments described in the detailed description are not meant to be exhaustive or to be limiting in scope. Rather, they are intended to be illustrative of devices consistent with aspects of the present disclosure as described in the appended claims.

[0064] The embodiment provides a mobile overhead contact system power supply device with arc extinguishing function, which is applied to the field of mobile overhead contact system and comprises a power supply structure, which is used for disconnecting or conducting the mobile overhead contact system; the power supply structure is used for realizing electrical connection between a load-bearing cable and / or contact wire conductor in a fixed or mobile overhead contact system and a load-bearing cable and / or contact wire conductor in another mobile overhead contact system.

[0065] The mobile overhead contact system power supply device has the arc extinguishing function.

[0066] The power supply structure body has the arc extinguishing function, or

[0067] An arc extinguishing structure is additionally arranged, and the arc extinguishing structure is used for arc extinguishing of the power supply structure.

[0068] In the embodiment, the arc extinguishing structure has a structure capable of being rapidly separated. During movement of the mobile overhead contact system to a working position, the arc extinguishing structure is first conducted, and then the power supply structure is conducted; during movement of the mobile overhead contact system to a non-working position, the power supply structure is disconnected, and then the arc extinguishing structure can be rapidly separated.

[0069] Embodiment one: asFigure 1 As shown in the embodiment, the structure capable of rapid disengagement is integrally arranged with the power supply structure or arranged separately. The power supply structure comprises a male plug portion 1 and a female plug portion 2, and the structure capable of rapid disengagement comprises contact surfaces arranged in the male plug portion and the female plug portion in a matching manner. The contact surface of the male plug portion can rapidly disengage from the contact surface of the female plug portion.

[0070] As shown in the embodiment, the female plug portion has an inwardly recessed contact surface, and the male plug portion 1 has an outwardly protruding contact surface matching the female plug portion 2. Preferably, the inwardly recessed contact surface is a conical recessed surface 4, and the outwardly protruding contact surface is a conical protruding surface 3. The male plug portion 1 is in a cylindrical structure, and the contact end portion has a conical protruding surface 3. The female plug portion 2 is in a cylindrical structure, and the contact end portion has a conical recessed surface 4 matching the conical protruding surface 2. The conical recessed surface or the conical protruding surface is only a preferred arrangement, and other surfaces having a matching recessed and protruding surface can also be used. Figure 1 Compared with the existing socket and plug matching mode, in the embodiment, the matching contact surfaces are arranged directly on the power supply structure. The contact surfaces can be quickly attached or disengaged in the process of being turned on or turned off, thereby effectively reducing the damage of electric arc to the power supply structure.

[0071] Embodiment two: In the embodiment, an arc extinguishing structure is arranged separately, and the arc extinguishing structure is used for extinguishing arc for the power supply structure. The arc extinguishing structure comprises an arc extinguishing component 5 and an arc extinguishing assembly 6; wherein

[0072] The arc extinguishing component 5 comprises an arc extinguishing piece 51, and the arc extinguishing piece 51 is configured to have a rebound force. Here, the rebound force can be a rebound force for driving the arc extinguishing piece to stretch and retract, or a rebound force for driving the arc extinguishing piece to rotate. For example, a torsion force is provided to the arc extinguishing piece 51 to be configured to rotate, and the arc extinguishing piece rapidly rebounds to achieve disengagement after being disengaged.

[0073] The arc extinguishing assembly 6 can move close to or away from the arc extinguishing component 5.

[0074] In the process of moving away from the arc extinguishing component 5, the arc extinguishing piece 51 can rapidly disengage from the arc extinguishing assembly 6. In the embodiment, in order to reduce the contact area, the arc extinguishing piece 51 in the embodiment can be a cylindrical long rod.

[0075] As shown in the embodiment, the female plug portion has an inwardly recessed contact surface, and the male plug portion 1 has an outwardly protruding contact surface matching the female plug portion 2. Preferably, the inwardly recessed contact surface is a conical recessed surface 4, and the outwardly protruding contact surface is a conical protruding surface 3. The male plug portion 1 is in a cylindrical structure, and the contact end portion has a conical protruding surface 3. The female plug portion 2 is in a cylindrical structure, and the contact end portion has a conical recessed surface 4 matching the conical protruding surface 2. The conical recessed surface or the conical protruding surface is only a preferred arrangement, and other surfaces having a matching recessed and protruding surface can also be used.

[0076] Figures 2 to 4 ​The three different perspective schematic diagrams of the embodiment are shown; the arc extinguishing assembly 5 in the embodiment further comprises a rotating member 52 and a rebound force providing member 53; the arc extinguishing member 51 is connected with the rotating member 52, and the arc extinguishing assembly 5 is separated from the arc extinguishing assembly 6, and the arc extinguishing member 51 can be quickly separated from the arc extinguishing assembly 6 by the rebound force providing member 53. In the embodiment, the rotating member 52 comprises a rotating shaft, and the rebound force providing member 53 comprises a torsion spring, and the torsion spring is sleeved outside the rotating shaft. Of course, the embodiment provides rotation to realize rebound, and the arc extinguishing member can be configured in a telescopic form to realize rebound.

[0077] The rotating member 52 and the rebound force providing member 53 in the embodiment can be mounted on a fixing member 54, and a gap (not shown in the figure) for rotation of the arc extinguishing member 51 is formed in the fixing member. The entire arc extinguishing assembly is fixed and arranged by a connecting member 55.

[0078] In the embodiment, the arc extinguishing assembly comprises an unhooking member 62, and the arc extinguishing member can be quickly separated from the unhooking member by the rebound force providing member. The arc extinguishing assembly comprises a separating and combining member 61, and the unhooking member is arranged on the separating and combining member or the arc extinguishing member. In the embodiment, the unhooking member can be arranged on the separating and combining member or the arc extinguishing member. For example, Figure 5 and Figure 6 As shown, the unhooking member is arranged obliquely on the separating and combining member in the embodiment. The arc extinguishing assembly is fixed on a welding frame 63, and the welding frame can be fixed on a rotating wrist arm or a moving trolley.

[0079] As shown, Figure 7A , Figure 7B and Figure 7C As shown, Figure 7A is a state schematic diagram of the arc extinguishing structure when the plug-in power supply structure is connected;

[0080] It needs to be further explained again that the arc is a form of gas discharge. Test proves that when the circuit with a voltage exceeding 10 V and a current exceeding 100 MA is opened or closed in the air, a group of gas with extremely high temperature and extremely strong brightness and capable of conducting electricity will be generated in the contact gap (or arc gap), which is called arc. Due to the high temperature and strong light of the arc, it can be widely applied to welding, smelting, chemical synthesis, strong light source and space technology and the like. For electrical appliances with contacts, since the arc is mainly generated when the contacts are disconnected, the high temperature will burn the contacts and the insulation, and in serious cases, it can even cause inter-phase short circuit, explosion of the electrical appliance, fire, and endanger the safety of personnel and equipment.

[0081] The voltage level of the contact network is between 25KV and 30KV, and the existing method is that the electric connection part is usually placed at the mobile contact network portal, the mobile contact network is driven by the mobile trolley, the connection is realized through the electric connection device, the mechanical shaking exists, the distance between the two contacts is less than the discharge gap, the air breakdown discharge generates the electric arc, the voltage breakdown is needed to form the electric arc, and the biggest highlight of the electric arc is that the arc extinguishing structure is connected first before the plug-in power supply structure is connected, and the equipotential is realized, the electric arc disappears after the traditional electric connection is completely connected, the structure device is provided, even if the shaking or incomplete contact exists in the process that the plug-in power supply structure is connected subsequently, the arc extinguishing can be effectively realized, because the arc extinguishing structure is connected first before the plug-in power supply structure is connected, as shown in the figure, after the contact of the switch-on and switch-off part (the moving contact part) and the arc extinguishing part 51, the switch-on and switch-off part (the moving contact part) is further moved in the direction shown by the arrow, the switch-on and switch-off part and the arc extinguishing part 51 are in the direct contact state during the process, and the plug-in power supply structure is closed. Figure 7A

[0082] Figure 7B is a schematic view of the arc extinguishing structure after the plug-in power supply structure is disconnected and moved for a distance, after the plug-in power supply structure is disconnected, the switch-on and switch-off part and the arc extinguishing part 51 are in the direct contact state, during the process, the arc extinguishing and switch-on and switch-off assembly 6 (which can be understood as the moving contact) is moved, Figure 7B , the arc extinguishing part 51 is subjected to the combined action of the rotating part 52 and the spring force providing part 53 to generate the rotational torque in the direction, after the critical value is reached, the arc extinguishing part 51 is rapidly (namely quickly) separated from the unhooking part, the greater the rotational torque is, the faster the separation speed is, and the smaller the influence of the electric arc is.

[0083] As known by those skilled in the art, when the plug-in power supply structure is disconnected, the electric arc needs to be lengthened to extinguish the electric arc, the device is adopted, the plug-in power supply structure is disconnected first, at this time, the switch-on and switch-off part and the arc extinguishing part 51 are in the direct contact state, after the switch-on and switch-off part is moved for a distance, the critical state shown in the figure is reached, the distance guarantee already exists, and the arc extinguishing part 51 is rapidly (quickly) separated, so that the damage of the electric arc to the plug-in power supply structure is effectively avoided or reduced. Figure 7B

[0084] Figure 7C is a schematic view of the state after the arc extinguishing part is further moved and separated. Figure 7B

[0085] ​​​Embodiment three: on the basis of the above-mentioned embodiments one and two, a specific plug-in power supply structure is provided. The plug-in power supply structure in this embodiment includes plug-in male part 7 and plug-in female part 8; wherein, the plug-in female part includes opening adjusting structure; the opening adjusting structure is used to adjust the opening of the plug-in female part.

[0086] As shown in Figure 8 and Figure 9 , in this embodiment, the opening adjusting structure includes locking mechanism 10 and elastic member 11; the locking mechanism is used to adjust the elastic member so as to increase or decrease the opening of the plug-in female part. The locking mechanism penetrates the oppositely arranged clamping plates, and the locking mechanism is tightened or loosened to adjust the opening of the plug-in female part. The plug-in female part at least includes oppositely arranged clamping plates which form the opening of the plug-in female part, and the elastic member 11 is connected with at least one clamping plate.

[0087] The locking mechanism includes spring 101 and spring shaft 102, and the spring shaft of the first clamping plate 12 and the second clamping plate 13 is provided with sleeve 14. The spring shaft is tightened or loosened to adjust the opening of the plug-in female part under the action of the elastic member 11 (which can be a spring plate).

[0088] In this embodiment, the plug-in female part can be fixed on the anchoring device under the fixed net of the gantry through the plug-in support, or can be directly fixed on the fixed net or the rotating wrist arm of the moving contact net without the gantry. Similarly, the plug-in male part can be fixed on the rotating wrist arm of another moving contact net. The plug-in power supply structure with arc extinguishing structure is the focus of protection of this patent, and the specific engineering construction position can be adjusted according to the engineering construction scene and requirements.

[0089] As shown in Figure 10 and Figure 11 , in this embodiment, the power supply structure includes power taking structure 19 and metal member 18 with power taking area, and the power taking structure 19 slides on the metal member 18 to take power.

[0090] It needs to be pointed out that,

[0091] In this embodiment, the power taking surface in the metal member with power taking area is adapted to the running track of the power taking structure. The power taking surface in the metal member is a plane or an arc surface; when the power taking structure moves linearly, the power taking structure slides on the metal member with plane to take power; when the running track of the power taking structure is an arc line, the power taking structure slides on the metal member with arc surface to take power.

[0092] As shown in Figure 10 and Figure 11 , in this embodiment, the metal member used is a plane, which can be a copper bar or a busbar.

[0093] As a preferred embodiment, the embodiment also includes a first bracket 20 for fixing the metal piece 18 and a second bracket 21 for fixing the power taking structure 19, wherein

[0094] The first bracket is directly or indirectly arranged on the portal part, and the second bracket is directly or indirectly arranged on the rotating wrist arm; in the embodiment, the rotating wrist arm is provided with a rotating shaft assembly, and the second bracket is directly or indirectly arranged on the rotating shaft assembly, and the rotating wrist arm drives the power taking structure to take power from the metal piece in the sliding process. Of course, the metal piece shown in the figure is a plane, which is only used as a reference for a schematic diagram, and an arc-shaped metal piece can be used in actual engineering applications to adapt to the running track of the rotating wrist arm driving the power taking structure.

[0095] As shown in Figure 10 and Figure 11 , the metal piece is connected to the busbar of the portal part through a connecting wire, as indicated by the word "busbar" in the figure, and the power taking structure is connected to the contact wire or contact wire clamp of the mobile contact net through a connecting wire, as indicated by the word "mobile net clamp" in the figure.

[0096] It should be noted that as an extended solution, the first bracket can also be directly or indirectly arranged on the rotating wrist arm, and the second bracket can be directly or indirectly arranged on the portal part.

[0097] (not shown in the figure).

[0098] The embodiment also provides a mobile contact net, as shown in Figure 12A , Figure 12B and Figure 12C ,

[0099] The mobile contact net adopts the mobile contact net power supply device described above. At least one rotating wrist arm is used in the mobile contact net, and in the process of rotating the rotating wrist arm 15 to the working position, the arc extinguishing structure is first connected, and then the plug-in power supply structure is connected; in the process of rotating the rotating wrist arm 15 to the non-working position, the plug-in power supply structure is first connected, and then the arc extinguishing structure is rapidly disconnected. As shown in Figure 12Cis the schematic diagram of the plug-in power supply structure connection; from the figure can be seen the plug-in power supply structure and arc extinguishing structure schematic state. Plug-in female plug part through plug-in support 9 and insulator 16 are connected, the insulator is fixed on the beam through support frame 17. In this embodiment, the schematic relationship between the rotating arm and the gantry beam is shown. In some application scenarios, gantry can not be used, such as a fixed catenary, the other is a rotating mobile contact line; or both are rotating mobile catenary can also use the plug-in power supply structure and arc extinguishing structure provided by the application. The specific on and off operation principle has been described above, and will not be repeated here.

[0100] It needs to be pointed out that, in this embodiment, as an extended embodiment, it also includes a elastic blocking device, which is used to block the further movement of the rotating arm after the plug-in power supply structure is connected. The elastic blocking device here can be arranged on the gantry, the stand or other structures, the main purpose is to block the further movement of the rotating arm after the plug-in power supply structure is connected. If the rotating arm moves further, it will cause damage to the power supply structure.

[0101] Although the embodiments of the application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the application.

Claims

1. A mobile overhead line system power supply device with arc extinguishing function, which is applied to the field of mobile overhead line system, characterized in that: The power supply structure is used to electrically connect the catenary and / or contact wire conductors in one fixed or mobile contact network to the catenary and / or contact wire conductors in another mobile contact network; the power supply device has an arc suppression function. The main body of the power supply structure has an arc-suppressing function. The power supply structure adopts a plug-in power supply structure, which includes a male plug part and a female plug part. The male plug part and the female plug part are provided with a matching contact surface as a structure that can be quickly separated. The contact surface of the male plug part and the contact surface of the female plug part can be quickly separated. or A separate arc-suppression structure is provided, which is used to extinguish the arc in the power supply structure; The arc-extinguishing structure includes an arc-extinguishing component and an arc-extinguishing splitting and combining component; The arc-extinguishing assembly includes an arc-extinguishing component and a rebound force providing component; The arc-extinguishing splitting and connecting component can move closer to or further away from the arc-extinguishing component; As the arc-extinguishing separation and reassembly assembly moves away from the arc-extinguishing assembly, the arc-extinguishing component can quickly detach from the arc-extinguishing separation and reassembly assembly; The arc-extinguishing separation and reassembly assembly includes a release element, and the arc-extinguishing element can be quickly detached from the release element by the rebound force providing element; The power supply structure adopts a plug-in power supply structure, which includes a male plug-in part and a female plug-in part; The female connector portion includes an opening adjustment structure and opposing clamps; the opposing clamps form an opening in the female connector portion. The opening adjustment structure is used to adjust the opening of the female plug portion of the connector; The opening adjustment structure includes a locking mechanism; The locking mechanism passes through the opposing clamps, and the locking mechanism is tightened or loosened to adjust the opening degree of the female plug portion of the connector; the power supply structure includes a power taking structure and a metal part with a power taking area; The power-collecting surface of the metal component with the power-collecting area is adapted to the running trajectory of the power-collecting structure.

2. The mobile catenary power supply device with arc elimination function according to claim 1, characterized in that: The arc-extinguishing structure has a structure that allows for rapid detachment.

3. The mobile catenary power supply device with arc extinguishing function according to claim 2, characterized in that: During the movement of the mobile contact network to a non-working position, the power supply structure is disconnected, and the arc suppression structure can be quickly detached.

4. The mobile contact network power supply device with arc suppression function according to claim 2, characterized in that: The structure that can be quickly detached is either integrated with or separate from the power supply structure.

5. The mobile contact network power supply device with arc suppression function according to claim 4, characterized in that: The female insertion portion has an inwardly recessed contact surface, and the male insertion portion has an outwardly protruding contact surface that is adapted to the female insertion portion.

6. The mobile contact network power supply device with arc suppression function according to claim 5, characterized in that: The inwardly concave contact surface is a conical concave surface, and the outwardly convex contact surface is a conical convex surface.

7. The mobile contact network power supply device with arc suppression function according to claim 6, characterized in that: The male connector has a cylindrical structure with a tapered protrusion at the contact end, and the female connector has a cylindrical structure with a concave surface at the contact end that matches the tapered protrusion.

8. The mobile contact network power supply device with arc suppression function according to claim 7, characterized in that: As the arc-extinguishing separation and reassembly assembly moves away from the arc-extinguishing assembly, the rebound force providing component enables the arc-extinguishing component to quickly detach from the arc-extinguishing separation and reassembly assembly.

9. The mobile contact network power supply device with arc suppression function according to claim 8, characterized in that: The arc-extinguishing assembly also includes a rotating component; the arc-extinguishing component is connected to the rotating component.

10. The mobile contact network power supply device with arc suppression function according to claim 9, characterized in that: The rotating component includes a rotating shaft, and the rebound force providing component includes a torsion spring, which is sleeved on the outside of the rotating shaft.

11. The mobile contact network power supply device with arc suppression function according to claim 10, characterized in that: The arc-extinguishing splitting and joining assembly includes a splitting and joining component, and the unhooking component is disposed on the splitting and joining component or on the arc-extinguishing component.

12. The mobile contact network power supply device with arc suppression function according to claim 11, characterized in that: The opening adjustment structure includes an elastic element; The locking mechanism is used to adjust the elastic element to increase or decrease the opening degree of the female part of the connector.

13. The mobile contact network power supply device with arc suppression function according to claim 12, characterized in that: The elastic element is connected to at least one clamping plate.

14. The mobile contact network power supply device with arc suppression function according to claim 13, characterized in that: The power-collecting structure draws power by sliding on a metal component.

15. The mobile contact network power supply device with arc suppression function according to claim 14, characterized in that: The power-collecting surface in the metal part is either a plane or an arc surface; when the power-collecting structure moves in a straight line, the power-collecting structure slides on the metal part with a plane to collect power; or, when the running trajectory of the power-collecting structure is an arc, the power-collecting structure slides on the metal part with an arc surface to collect power.

16. The mobile contact network power supply device with arc suppression function according to claim 15, characterized in that: It also includes a first bracket and a second bracket. The first bracket is used to fix the metal parts, and the second bracket is used to fix the power supply structure. The first bracket is directly or indirectly installed on the gantry part of the mobile contact network, and the second bracket is directly or indirectly installed on the rotating arm; or, the first bracket is directly or indirectly installed on the rotating arm, and the second bracket is directly or indirectly installed on the gantry part of the mobile contact network.

17. A mobile overhead contact line, characterized in that: The mobile contact network adopts the mobile contact network power supply device according to any one of claims 1 to 16.

18. The mobile contact network according to claim 17, characterized in that: The mobile contact network employs at least one rotating arm. During the rotation of the rotating arm toward the working position, the arc-suppressing structure is activated first, followed by the power supply structure of the plug-in component. During the rotation of the rotating arm toward the non-working position, the power supply structure of the plug-in component is activated first, followed by the rapid disengagement of the arc-suppressing structure.

19. The mobile contact network according to claim 18, characterized in that: It also includes a spring-loaded blocking device, which is used to prevent the rotating wrist arm from moving further after the power supply structure of the connector is turned on.

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