Docking device

Abstract

The utility model relates to a butt joint device, comprising a bus terminal used for being electrically connected with a device to be tested; the first end of the first base is detachably and electrically connected with the bus end; the first end of the second base is electrically connected with the second end of the first base, one of the first end of the second base and the second end of the first base is a convex surface, and the other one of the first end of the second base and the second end of the first base is a concave surface; and the shielding piece is used for being electrically connected with the second end of the second base. Through the docking device provided by the invention, rapid alignment can be realized in the test process of the GIS, the position does not need to be repeatedly adjusted, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to a docking device. Background Art

[0002] In the GIS (Gas Insulated Switchgear) manufacturing process, factory testing is the final verification link of manufacturing, and it is necessary to verify whether the manufactured GIS is a good product.

[0003] In traditional technology, during the GIS test process, the busbar end needs to be connected to the transformer. Generally, the busbar end is hoisted as a whole and inserted into the transformer connection port. However, this assembly method is complicated and difficult to align, and it often requires repeated adjustments to achieve good contact after docking. Utility Model Content

[0004] Based on this, it is necessary to provide a docking device to address the complex assembly issues during GIS verification.

[0005] A docking device includes: a busbar end, which is used to be electrically connected to a device to be tested; a first base, whose first end is detachably electrically connected to the busbar end; a second base, whose first end is electrically connected to the second end of the first base, and one of the first end of the second base and the second end of the first base is a convex surface and the other is a concave surface; and a shielding member, which is used to be electrically connected to the second end of the second base.

[0006] In one embodiment, a first slot is formed at the first end of the first base, and the busbar end extends into the first slot and is electrically connected to the first base.

[0007] In one of the embodiments, the first base is provided with a first spring contact finger on the side wall of the first slot, and the busbar end is electrically connected to the first base through the first spring contact finger.

[0008] In one embodiment, the shielding member is provided with a second slot, a second spring contact finger is disposed on a side wall of the second slot, and the second base extends into the second slot and is electrically connected to the shielding member through the second spring contact finger.

[0009] In one embodiment, the second end of the first base is a convex arc surface, and the first end of the second base is at least partially a concave arc surface matching the second end of the first base.

[0010] In one embodiment, the second base includes a first connector and a second connector electrically connected to the first connector, the first end of the first connector is used to connect to the first base, and the second connector is detachably electrically connected to the shielding member.

[0011] In one embodiment, the first connecting member and the second connecting member are connected via a guide wire, and the second connecting member is provided with a fastener, and the fastener is used to fix the guide wire.

[0012] In one embodiment, the second end of the first connecting member is movably connected to the second connecting member via an elastic member, the first connecting member can move between a relaxed position and a contracted position, and the elastic member is used to generate a restoring force toward the relaxed position when the first connecting member is located in the contracted position.

[0013] In one embodiment, the second connecting member has a first opening, the elastic member is disposed in the first opening, and the first connecting member extends into the first opening and abuts against the elastic member.

[0014] In one embodiment, the second connecting member includes a second opening and a connecting hole connecting the first opening and the second opening, the hole diameter of the connecting hole is smaller than the hole diameter of the first opening to form a step, and the second end of the first connecting member passes through the first opening and the connecting hole and then extends into the second opening; wherein, the elastic member is sleeved on the first connecting member and abuts against the step, and the portion of the first connecting member extending into the second opening is sleeved with a limiting member whose diameter is larger than the hole diameter of the connecting hole.

[0015] The above-mentioned docking device includes a busbar end, a first base, a second base and a shielding member. Among them, the busbar end is used to electrically connect to the device to be tested, the busbar end is detachably electrically connected to the first base, the first base and the second base are electrically connected, and the shielding member is electrically connected to the second base, and the second base and the shielding member are also connected in three phases to form a conductive test structure. The GIS product to be tested is connected to the busbar end, and the busbar end is detachably connected to the first base, so that the busbar end can be disassembled independently, which is convenient for installing the GIS product to be tested. The first base and the third base are engaged by the convex surface and the concave surface, and can be quickly aligned during hoisting matching without repeated adjustment, which can improve the alignment efficiency. Through the docking device provided in the present application, it can be quickly aligned during the GIS test process without repeated position adjustment, thereby improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a schematic structural diagram of a docking device in one embodiment;

[0017] FIG. 2 is a schematic diagram of a second base driving an extrusion elastic member in one embodiment.

[0018] Explanation of the reference numerals: 100, busbar terminal; 200, first base; 210, first spring contact finger; 300, second base; 310, first connecting member; 320, second connecting member; 330, guide wire; 340, fastener; 350, fastening bolt; 360, elastic member; 370, limit member; 400, shielding member. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0025] GIS is a commonly used switchgear in high-voltage power systems. GIS adopts a closed metal casing and an insulating gas (usually hydrogen sulfide) filling design. Compared with traditional open switchgear, it has the advantages of small footprint, good insulation performance, high reliability, and strong anti-pollution ability.

[0026] During the GIS manufacturing process, factory testing is the final verification link of manufacturing. During the testing process, the three phases of the main busbar of the GIS product to be tested need to be connected to the connection interface of the armored transformer. For example, a fastening transition tool is installed on the three-phase conductor of the main busbar, and then the product and the busbar end are hoisted as a whole, and the main busbar three-phase transition tool is simultaneously inserted into the three-phase connection interface of the armored transformer. In this case, the assembly is more complicated and it is difficult to align the three phases at the same time. It often requires repeated adjustments to achieve good contact of the three phases after docking to ensure current flow.

[0027] To solve the above technical problems, refer to FIG. 1, which shows a schematic diagram of the structure of a docking device in an embodiment of the utility model. The docking device provided in an embodiment of the utility model includes a bus terminal 100, a first base 200, a second base 300 and a shielding member 400. The bus terminal 100 is used to electrically connect to the device to be tested, and the device to be tested may be a GIS to be tested, such as a 252 type GIS. Schematically, the three phases of the bus terminal 100 are electrically connected to the three-phase circuit of the GIS respectively. The bus terminal 100 is electrically connected to the first base 200 detachably, the first base 200 is electrically connected to the second base 300, and the shielding member 400 is electrically connected to the second base 300. The second base 300 and the shielding member 400 are also connected in three phases to form a conductive test structure. The GIS shielding member 400 refers to a conductor structure used to shield electric and magnetic fields. These conductors are usually made of metal materials, such as aluminum, copper and other metals with good electrical conductivity.

[0028] Specifically, the first end of the first base 200 is electrically connected to the bus terminal 100 in a detachable manner, and the bus terminal 100 is not always connected to the first base 200. The bus terminal 100 is separated from the first base 200 during non-testing, and during testing, the bus terminal 100 is assembled with the first base 200 after the GIS to be tested is connected to the bus terminal 100. Compared with the case where the bus terminal 100 is always fixedly connected, when the bus terminal 100 is separated from the first base 200, the mass of the independent bus terminal 100 is smaller, which is convenient for connecting to the GIS.

[0029] The second end of the first base 200 is electrically connected to the first end of the second base 300, and the second end of the second base 300 is electrically connected to the shielding member 400. This allows the GIS to flow during the test. Among them, one of the first end of the second base 300 and the second end of the first base 200 is a convex surface, and the other is a concave surface, so that the first base 200 and the second base 300 can be mated. The busbar end 100 is assembled on the first base 200 and then docked. During the docking process, the first base 200 can be lifted to make the second end of the first base 200 and the first end of the second base 300 mated and matched to achieve connection. By setting a specific mating matching structure, the alignment speed can be increased.

[0030] In one implementation, the second end of the first base 200 is a convex surface, and the first end of the second base 300 is a concave surface. In another implementation, the second end of the first base 200 is a concave surface, and the first end of the second base 300 is a convex surface. In one embodiment, the second end of the first base 200 is a convex arc surface, such as a spherical surface, in which case the first base 200 forms a ball head device; the first end of the second base 300 is at least partially a concave arc surface that matches the second end of the first base 200. This arrangement allows the first base 200 to be naturally aligned when it is lifted and in contact with the second base 300, thereby improving the alignment efficiency. Optionally, the first end of the second base 300 can be a complete arc surface, or a arc surface formed by multiple contacts.

[0031] In another implementation, the first base 200 is provided with a first shell, the first shell is provided with a first shell flange, the second base 300 is provided with a second shell, and the second shell is provided with a second shell flange. After the first base 200 and the second base 300 are aligned, the first shell flange and the second shell flange are locked to connect the first shell and the second shell to improve the mechanical strength of the alignment of the two. After the test is completed, the first base 200 and the second base 300 can be separated again by loosening the first shell flange and the second shell flange.

[0032] The above-mentioned docking device includes a bus terminal 100, a first base 200, a second base 300 and a shielding member 400. The bus terminal 100 is used to electrically connect to the device to be tested, the bus terminal 100 is electrically connected to the first base 200 detachably, the first base 200 is electrically connected to the second base 300, and the shielding member 400 is electrically connected to the second base 300. The second base 300 and the shielding member 400 are also connected in three phases to form a conductive test structure. The GIS product to be tested is connected to the bus terminal 100, and the bus terminal 100 is detachably connected to the first base 200, so that the bus terminal 100 can be disassembled independently, which is convenient for installing the GIS product to be tested. The first base 200 and the third base 300 are engaged by the convex surface and the concave surface, and can be quickly aligned during hoisting matching without repeated adjustment, which can improve the alignment efficiency. Through the docking device provided by the present application, it can be quickly aligned during the test process of GIS without repeated position adjustment, thereby improving the test efficiency.

[0033] Schematically, the busbar refers to the main conductive path or concentrated conductor used to connect various devices. The busbar in GIS is generally made of highly conductive materials, such as copper or aluminum alloy. The busbar in GIS plays the role of transmitting and distributing electric energy. It connects various equipment in the substation, including generators, transformers, capacitors, circuit breakers, etc. The busbar is connected to these devices through pillars, connectors or joints to transmit current and electric energy. Optionally, in GIS, the busbar system is usually divided into two main parts: the main busbar and the branch busbar. The main busbar is the core part, which is responsible for introducing electric energy from the main power source of the substation to various devices. The branch busbar distributes electric energy from the main busbar to different devices.

[0034] In an exemplary embodiment, a first slot is provided at the first end of the first base 200, and the bus terminal 100 extends into the first slot and is electrically connected to the first base 200. Exemplarily, the first slot can match the size of the GIS to be tested, so that the GIS can be accommodated in the first slot. In one implementation, the first base 200 is provided with a first spring contact finger 210 on the side wall of the first slot, and the first spring contact finger 210 is arranged around the side wall of the first slot, and the bus terminal 100 is electrically connected to the first base 200 through the first spring contact finger 210. Before use, the first spring contact finger 210 is installed on the first base 200 to form a product-end connection component. When the bus terminal 100 is installed on the first base 200, the first spring contact finger is in a compressed state, ensuring that the first base 200 is conductive with the bus terminal and does not fall off.

[0035] The spring contact finger is made of an elastic material, such as spring steel or copper alloy, and has the property of elastic deformation. The main function of the spring contact finger is to provide stable electrical contact and connection. It usually has a curved shape and can establish a reliable connection between two circuit components or wires. When two components or wires are inserted into the spring contact finger, the elastic material will generate a certain pressure, so that the contact point and the components or wires form a good contact. In this embodiment, the first spring contact finger can maintain a good electrical connection between the bus terminal 100 and the first base 200.

[0036] In another exemplary embodiment, the shielding member 400 is provided with a second slot, the side wall of the second slot is provided with a second spring contact finger, the second spring contact finger is arranged around the side wall of the second slot, the second base 300 extends into the second slot, the second spring contact finger is sleeved outside the second base 300, and the second base 300 is electrically connected to the shielding member 400 through the second spring contact finger. At this time, the second spring contact finger in the shielding member 400 is in a compressed state, ensuring that the second base 300 and the shielding member 400 are conductive and do not fall off.

[0037] The shielding member 400 may be a shielding conductor having an internal accommodation space, and the second slot may be connected to the internal accommodation space. The function of the second spring contact finger is similar to that of the first spring contact finger 210, and the second spring contact finger can maintain a good electrical connection between the second base 300 and the shielding member 400. Optionally, the number of the second spring contact fingers may be four or more.

[0038] In an exemplary embodiment, the second base 300 includes a first connector 310 and a second connector 320 electrically connected to the first connector 310 , wherein the first end of the first connector 310 is used to connect to the first base 200 , and the second connector 320 is detachably electrically connected to the shielding member 400 .

[0039] In one embodiment, the first connector 310 and the second connector 320 are connected through the guide wire 330, and the second connector 320 is provided with a fastener 340, and the fastener 340 is used to fix the guide wire 330. Schematically, the fastener 340 can be a fastening screw arranged on the side wall of the second connector 320, and the guide wire 330 is inserted into the groove of the fastening screw and then tightened by the fastening bolt. In a feasible manner, the first connector 310 of the guide wire 330 is provided with a fastening bolt 350, and the fastening bolt 350 electrically connects the guide wire 330 to the first connector 310 by tightening.

[0040] In one embodiment, the second end of the first connecting member 310 is movably connected to the second connecting member 320 via an elastic member 360, and the first connecting member 310 can move between a diastolic position and a contracted position. The elastic member 360 is used to generate a restoring force toward the diastolic position when the first connecting member 310 is in the contracted position.

[0041] Optionally, the elastic member 360 may be a spring structure, and the spring has elastic potential energy when compressed, and the elastic potential energy of the spring refers to the energy stored due to its elastic properties when the spring is compressed or stretched. This energy can be released when the spring returns to its original state, such as under the action of spring vibration or elastic force, thereby generating elastic force on the first connecting member 310.

[0042] When the first connecting member 310 is in the relaxed position, no pressure or a small pressure is generated on the elastic member 360, and the elastic member 360 is relaxed or in a state of small elasticity. When the first connecting member 310 is in the contracted position, the first connecting member 310 generates a large pressure on the elastic member 360, and the elastic member 360 is compressed and deformed, and thus has elastic potential energy to restore the relaxed state, generating a restoring force toward the relaxed position to generate pressure in the opposite direction of the first connecting member 310.

[0043] As shown in FIG2 , FIG2 shows a schematic diagram of a structure in which the first base 200 moves toward the first connector 310 to squeeze the elastic member 360 to shrink it. In this embodiment, the first connector 310 is initially in a relaxed position. After the first base 200 approaches and squeezes the first connector 310, the first connector 310 squeezes the elastic member 360, and the elastic member 360 shrinks to generate elastic potential energy, which generates reverse pressure on the first connector 310, thereby making the contact between the first base 200 and the first connector 310 closer, ensuring excellent conductive performance.

[0044] In one implementation, the second connector 320 has a first opening, the elastic member 360 is disposed in the first opening, and the first connector 310 extends into the first opening and abuts against the elastic member 360. In this configuration, the first connector 310 can generate a certain distance of displacement in the first opening, and the first base 200 drives the first connector 310 to squeeze the elastic member 360 in the first opening along the extension direction of the hole, and the elastic member 360 generates a reverse elastic force on the first connector 310, so that the connection between the first connector 310 and the first base 200 is tighter, ensuring a good conductive effect.

[0045] In an exemplary embodiment, the second connecting member 320 includes a second opening and a connecting hole connecting the first opening and the second opening, that is, the first opening, the connecting hole and the second opening are connected.

[0046] The diameter of the connecting hole is smaller than the diameter of the first opening to form a step, and the elastic member 360 is sleeved on the first connecting member 310 and abuts against the step. In this way, the step can provide supporting force to the elastic member 360, and the step can serve as a supporting point when the first connecting member 310 squeezes the elastic member 360. The second end of the first connecting member 310 passes through the first opening and the connecting hole and then extends into the second opening; the portion of the first connecting member 310 extending into the second opening is sleeved with a stopper 370 having a diameter larger than the diameter of the connecting hole, thereby limiting the displacement of the first connecting member 310 and preventing the first connecting member 310 from being ejected from the first opening under the action of the elastic member 350.

[0047] In the docking device provided in this embodiment, the GIS connection bus terminal 100 to be tested serves as the product bus terminal, and the second base 200 serves as the armor interface terminal. The product bus terminal is detachably connected to the first base 200 to achieve plug-and-play, and the second base 300 and the shielding member 400 are also detachably connected to achieve plug-and-play. After the first base 200 is inserted into the product bus terminal and the shielding member 400 is inserted into the second base 300, the product can be directly lifted to dock the product bus terminal and the armor interface terminal. During the docking process, the spherical device at the product bus terminal is directly crimped onto the curved device at the armor interface terminal. After the docking is completed, the spring at the crimping point is stressed, so that the ball head device at the product bus terminal and the curved device at the armor interface terminal are automatically calibrated to a line contact with a certain pressure, and conduction is achieved without deliberate centering. The docking is achieved by fixing the shell flange of the product bus terminal and the shell flange of the armor interface terminal with bolts. When dismantling, the shell flanges at both ends are unfastened and the three-phase conductors at both ends are directly separated by lifting the product away.

[0048] The docking device provided in this embodiment has a conductive static contact as a contact finger crimping line contact and a spring elastic force crimping line contact, and has excellent conductive performance; the docking mode is an automatic calibration docking under the action of spring pressure, and no manual centering docking is required; the usage mode is plug-and-play, and no extra tightening action is required. The present invention is plug-and-play, has a clear structure, is convenient for docking, and is relatively simple to assemble.

[0049] The docking device provided in this embodiment is plug-and-play, has a clear structure, is convenient for docking, and is relatively simple to assemble.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A docking device, characterized in that: include: Bus terminal, used for electrical connection with the device under test; a first base, wherein a first end of the first base is detachably electrically connected to the bus terminal; a second base, wherein a first end of the second base is electrically connected to a second end of the first base, and one of the first end of the second base and the second end of the first base is a convex surface and the other is a concave surface; and The shielding member is used to be electrically connected to the second end of the second base.

2. The docking device according to claim 1, characterized in that: A first slot is formed at the first end of the first base, and the busbar end extends into the first slot and is electrically connected to the first base.

3. The docking device according to claim 2, characterized in that: The first base is provided with a first spring contact finger on the side wall of the first slot, and the busbar end is electrically connected to the first base through the first spring contact finger.

4. The docking device according to claim 1, characterized in that: The shielding member is provided with a second slot, a side wall of the second slot is provided with a second spring contact finger, the second base extends into the second slot, and is electrically connected to the shielding member through the second spring contact finger.

5. The docking device according to claim 1, characterized in that: The second end of the first base is a convex arc surface, and at least a part of the first end of the second base is a concave arc surface matching the second end of the first base.

6. The docking device according to claim 1, characterized in that: The second base includes a first connecting member and a second connecting member electrically connected to the first connecting member, the first end of the first connecting member is used to be connected to the first base, and the second connecting member is detachably electrically connected to the shielding member.

7. The docking device according to claim 6, characterized in that: The first connecting member and the second connecting member are connected via a guide wire, and the second connecting member is provided with a fastener, and the fastener is used to fix the guide wire.

8. The docking device according to claim 6, characterized in that: The second end of the first connecting member is movably connected to the second connecting member via an elastic member, the first connecting member can move between a relaxed position and a contracted position, and the elastic member is used to generate a restoring force toward the relaxed position when the first connecting member is located at the contracted position.

9. The docking device according to claim 8, characterized in that: The second connecting member has a first opening, the elastic member is disposed in the first opening, and the first connecting member extends into the first opening and abuts against the elastic member.

10. The docking device according to claim 9, characterized in that: The second connecting member includes a second opening and a connecting hole connecting the first opening and the second opening, the diameter of the connecting hole is smaller than the diameter of the first opening to form a step, and the second end of the first connecting member passes through the first opening and the connecting hole and then extends into the second opening; wherein, the elastic member is sleeved on the first connecting member and abuts against the step, and the portion of the first connecting member extending into the second opening is sleeved with a limiting member whose diameter is larger than the diameter of the connecting hole.

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