A hanging current-sensitive device for measuring the current on the contact surface of vertically lapped conductors

Abstract

The present invention discloses a hanging current-sensitive device for measuring the current on the contact surface of a vertically lapped conductor, which is used for measuring the vertically lapped conductor. The vertically lapped conductor includes a horizontal conductor and a vertical conductor. The structure of the hanging current-sensitive device is restricted by a pipeline component. The pipeline component includes a first upper clamping area, a second upper clamping area, a first lower clamping area and a second lower clamping area. Both the first upper clamping area and the second upper clamping area are adapted to the width of the horizontal conductor and are both used for clamping on the upper side of the horizontal conductor. The first lower clamping area and the second lower clamping area are both used for clamping on the lower side of the horizontal conductor. The distance between the first upper clamping area and the second upper clamping area, and the distance between the first lower clamping area and the second lower clamping area are both adapted to the width of the vertical conductor. The hanging current-sensitive device can be hung on the horizontal conductor without separating the horizontal conductor and the vertical conductor in the vertically lapped conductor.

Description

Technical Field

[0001] The present invention relates to the technical field of power system measurement, and more particularly to a hanging current sensing device for measuring the current on the contact surface of vertically overlapping conductors. Background Art

[0002] With the continuous upgrading and transformation of the power system, new technologies such as new energy power generation and smart grid are more and more widely used. For example, solar photovoltaic power generation, wind power generation, tidal power generation, etc. widely promoted at home and abroad are connected to the grid, and the various disturbances brought to the grid are much greater than those of traditional thermal power generation. Along with the development of ultra-high voltage power transmission and transformation technology, higher requirements are put forward for the accuracy, insulation, anti-electromagnetic interference ability, weight, volume, etc. of current transformers. Compared with traditional current transformers, optical fiber current transformers have the advantages of good insulation performance, strong anti-electromagnetic interference ability, high measurement accuracy, small volume, light weight, large measurement dynamic range, wide frequency band, etc.

[0003] At present, in the industries of steel, metallurgy, machinery, and chemical industry, there are many vertically overlapping conductors for transmitting large currents. When measuring the current transmitted by this conductor with a traditional optical fiber current transformer, if it cannot be sleeved from one end of the conductor, the circuit needs to be cut off briefly, and the current sensing device is connected in series to the power grid line. With the wide application of electricity in life, even a short-term power cut will cause huge economic losses.

[0004] Therefore, when measuring the current on the contact surface of two vertically overlapping conductors, how to ensure that the measurement can be carried out without power interruption, so as to reduce the economic losses caused by the measurement, is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the above problems, the present invention provides a hanging current sensing device for measuring the current on the contact surface of vertically overlapping conductors, so as to solve at least some of the technical problems mentioned in the above background art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The present invention provides a hanging current sensing device for measuring the current on the contact surface of vertically overlapping conductors, which is used for measuring vertically overlapping conductors. The vertically overlapping conductors include a horizontal conductor and a vertical conductor;

[0008] The structure of the hanging current sensing device is limited by a pipeline assembly;

[0009] The pipeline assembly includes a first upper clamping area, a second upper clamping area, a first lower clamping area, and a second lower clamping area;

[0010] Both the first upper clamping area and the second upper clamping area are adapted to the width of the horizontal conductor and are both used for clamping on the upper side of the horizontal conductor;

[0011] Both the first lower clamping area and the second lower clamping area are used for clamping on the lower side of the horizontal conductor;

[0012] The distance between the first upper clamping area and the second upper clamping area, and the distance between the first lower clamping area and the second lower clamping area are both adapted to the width of the vertical conductor.

[0013] Furthermore:

[0014] The first upper clamping area includes PVC elbow A and the first PVC elbow C;

[0015] The second upper clamping area includes PVC elbow B and the second PVC elbow C;

[0016] The first lower clamping area includes PVC elbow E;

[0017] The second lower clamping area includes PVC elbow D;

[0018] PVC elbow A and PVC elbow B are connected by fiberglass tube A;

[0019] PVC elbow E and PVC elbow D are connected by fiberglass tube C;

[0020] The first PVC elbow C and PVC elbow E are connected by the first fiberglass tube B;

[0021] The second PVC elbow C and PVC elbow D are connected by the second fiberglass tube B.

[0022] Furthermore, a rotating assembly is provided between PVC elbow B and the second PVC elbow C.

[0023] Furthermore, the rotating assembly is composed of a front rotating part, a limit pin, an upper fixing clip, a lower fixing clip and a rear rotating part;

[0024] The front rotating part, the limit pin, the upper fixing clip, the lower fixing clip and the rear rotating part form an axial rotating mechanism;

[0025] The upper fixing clip and the lower fixing clip are of semi-circular ring structure. The rear rotating part is located between the upper fixing clip and the lower fixing clip and is rotatably connected to the upper fixing clip and the lower fixing clip; the upper fixing clip and the lower fixing clip are connected by screws;

[0026] The front rotating part is used for axial rotation relative to the upper fixing clip, the lower fixing clip and the rear rotating part;

[0027] The limit pin is installed on the front rotating member, and the rotation angle of the front rotating member is restricted through the limit groove on the upper fixing clip.

[0028] Furthermore, the optical component in the hanging type current sensing device is composed of a reflector, a sensitive optical fiber, a wave plate and a transmission optical fiber;

[0029] The sensitive optical fiber is arranged inside the pipeline component and the rotating component;

[0030] One end of the sensitive optical fiber is inside the PVC elbow A and is used for plating a high-reflection film to form the reflector;

[0031] The other end of the sensitive optical fiber is inside the first PVC elbow C and is used for axially fusing with one end of the wave plate at 0°;

[0032] The other end of the wave plate is axially fused with the transmission optical fiber at 45°.

[0033] Furthermore, the reflector is fixed based on a reflector mounting assembly;

[0034] The reflector mounting assembly is composed of a reflector mounting block and a reflector cover plate;

[0035] The reflector mounting block and the reflector cover plate form a box body for accommodating the reflector; the reflector is fixed at a specified position on the reflector mounting block by gluing;

[0036] The reflector cover plate is connected to the reflector mounting block by screws.

[0037] Furthermore, the wave plate is fixed based on a wave plate mounting assembly;

[0038] The wave plate mounting assembly includes a wave plate mounting block, a wave plate cover plate, a lock and a spring;

[0039] The wave plate mounting block and the wave plate cover plate form a box body for accommodating the wave plate; the wave plate is fixed at a specified position on the wave plate mounting block by gluing;

[0040] The wave plate cover plate is connected to the wave plate mounting block by screws;

[0041] Two locks with springs are arranged on the wave plate mounting block; the locks are cooperatively connected with the reflector mounting block.

[0042] Furthermore, the wave plate mounting assembly further includes a gland;

[0043] The gland is used for fixing the transmission optical fiber.

[0044] As can be seen from the above technical solutions, compared with the prior art, the present invention discloses a hanging current sensitive device for measuring the current on the contact surface of vertically lapped conductors, which has the following beneficial effects:

[0045] Through a special structural design of the hanging current sensitive device, the present invention can be quickly installed at the connection of vertically lapped conductors to measure the current on the contact surface of two vertically lapped conductors; the measurement process does not require power-off, and it is even more unnecessary to separate the two lapped conductors, which has high practicability.

[0046] In the present invention, the whole of PVC elbow A, fiberglass tube A and PVC elbow B can rotate around the axis of the front rotating part, so that the mirror mounting assembly can be combined with and separated from the wave plate mounting assembly, thereby realizing the mutual conversion of the hanging current sensitive device between two states of closed and open. Therefore, the measurement process does not require power-off, and it is even more unnecessary to separate the two lapped conductors, which has high practicability.

[0047] In the present invention, the hanging current sensitive device adopts a hanging structure and does not need to be fixedly installed during use. Even if the conductor to be measured has slight vibration or movement, its posture will not change, which is convenient for long-term measurement. In addition, the present invention designs a buckle structure and is relatively light in weight, which is convenient for quick installation and disassembly and has good market prospects.

[0048] Next, through the drawings and embodiments, the technical solutions of the present invention will be further described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0050] Figure 1 It is a schematic diagram of the clamping area structure of the hanging current sensitive device for measuring the current on the contact surface of vertically lapped conductors provided by the embodiment of the present invention.

[0051] Figure 2 It is a schematic diagram of the principle of the optical component of the hanging current sensitive device for measuring the current on the contact surface of vertically lapped conductors provided by the embodiment of the present invention.

[0052] Figure 3 It is a front view structural schematic diagram of the hanging current sensitive device for measuring the current on the contact surface of vertically lapped conductors provided by the embodiment of the present invention.

[0053] Figure 4This is a top - view structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors provided by an embodiment of the present invention.

[0054] Figure 5 This is a left - view structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors provided by an embodiment of the present invention

[0055] Figure 6 This is a three - dimensional structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors provided by an embodiment of the present invention.

[0056] Figure 7 This is an exploded structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors provided by an embodiment of the present invention.

[0057] Figure 8 This is a three - dimensional structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors with joints opened provided by an embodiment of the present invention.

[0058] Figure 9 This is a three - dimensional structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors with a mirror installed provided by an embodiment of the present invention.

[0059] Figure 10 This is a three - dimensional structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors with a wave - plate installed provided by an embodiment of the present invention.

[0060] Figure 11 This is a front - view structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors installed on a vertically - lapped conductor provided by an embodiment of the present invention.

[0061] Figure 12 This is a top - view structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors installed on a vertically - lapped conductor provided by an embodiment of the present invention.

[0062] Figure 13 This is a left - view structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors installed on a vertically - lapped conductor provided by an embodiment of the present invention.

[0063] Figure 14 This is a three - dimensional structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors in step 1 of being installed onto a vertically - lapped conductor provided by an embodiment of the present invention.

[0064] Figure 15 This is a three - dimensional structural schematic diagram of the hanging current - sensitive device for measuring the current on the contact surface of vertically - lapped conductors in step 2 of being installed onto a vertically - lapped conductor provided by an embodiment of the present invention.

[0065] Figure 16 Schematic three-dimensional structure diagram of the step 3 of installing the hanging current sensing device for measuring the current on the contact surface of the vertical overlapping conductor provided by the embodiment of the present invention onto the vertical overlapping conductor.

[0066] Figure 17 Schematic three-dimensional structure diagram of the step 4 of installing the hanging current sensing device for measuring the current on the contact surface of the vertical overlapping conductor provided by the embodiment of the present invention onto the vertical overlapping conductor.

[0067] Figure 18 Schematic three-dimensional structure diagram of the step 5 of installing the hanging current sensing device for measuring the current on the contact surface of the vertical overlapping conductor provided by the embodiment of the present invention onto the vertical overlapping conductor.

[0068] Figure 19 Schematic three-dimensional structure diagram of the anti-side opening of the hanging current sensing device for measuring the current on the contact surface of the vertical overlapping conductor provided by the embodiment of the present invention.

[0069] Reference numerals: 001 - First upper clamping area; 002 - Second upper clamping area; 003 - First lower clamping area; 004 - Second lower clamping area; 1 - Reflector; 2 - Sensitive optical fiber; 3 - Wave plate; 4 - Transmission optical fiber; 5 - Reflector mounting block; 6 - Reflector cover plate; 7 - PVC elbow A; 8 - Fiberglass tube A; 9 - PVC elbow B; 10 - Front rotating part; 11 - Limit pin; 12 - Upper fixing clamp; 13 - Lower fixing clamp; 14 - Rear rotating part; 151 - First PVC elbow C; 152 - Second PVC elbow C; 161 - First fiberglass tube B; 162 - Second fiberglass tube B; 17 - PVC elbow D; 18 - Fiberglass tube C; 19 - PVC elbow E; 20 - Wave plate mounting block; 21 - Wave plate cover plate; 22 - Lock; 23 - BNC connector; 24 - Spring; 100 - Hanging current sensing device; 200 - Horizontal conductor; 300 - Vertical conductor. Detailed implementation manners

[0070] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0071] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper side", "lower side", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0072] In the present invention, unless otherwise clearly specified and defined, terms such as "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] An embodiment of the present invention discloses a hanging current-sensitive device for measuring the current on the contact surface of a vertically lapped conductor, which is used for measuring the vertically lapped conductor. The vertically lapped conductor includes a horizontal conductor and a vertical conductor; specifically: the structure of the hanging current-sensitive device is restricted by a pipeline component, and is used to realize hanging the hanging current-sensitive device on the horizontal conductor without separating the horizontal conductor and the vertical conductor in the vertically lapped conductor.

[0074] Specifically, refer to Figure 1 As shown, the pipeline component includes a first upper clamping area 001, a second upper clamping area 002, a first lower clamping area 003 and a second lower clamping area 004; both the first upper clamping area 001 and the second upper clamping area 002 are adapted to the width of the horizontal conductor and are both used for clamping on the upper side of the horizontal conductor; the first lower clamping area 003 and the second lower clamping area 004 are both used for clamping on the lower side of the horizontal conductor; the distance d1 between the first upper clamping area 001 and the second upper clamping area 002, and the distance d2 between the first lower clamping area 003 and the second lower clamping area 004 are both adapted to the width of the vertical conductor, that is, d1 = d2.

[0075] Refer to Figures 2 to 10As shown, the above-mentioned first upper clamping area 001 includes a PVC elbow A7 and a first PVC elbow C151; the second upper clamping area 002 includes a PVC elbow B9 and a second PVC elbow C152; the first lower clamping area 003 includes a PVC elbow E19; the second lower clamping area 004 includes a PVC elbow D17; the PVC elbow A7 and the PVC elbow B9 are connected by a fiberglass tube A8; the PVC elbow E19 and the PVC elbow D17 are connected by a fiberglass tube C18; the first PVC elbow C151 and the PVC elbow E19 are connected by a first fiberglass tube B161; the second PVC elbow C152 and the PVC elbow D17 are connected by a second fiberglass tube B162.

[0076] A rotating assembly is provided between the above-mentioned PVC elbow B9 and the second PVC elbow C152; based on this rotating assembly, it can be ensured that the whole of the PVC elbow A7, the fiberglass tube A8 and the PVC elbow B9 can rotate, which is convenient for hanging the hanging current-sensitive device on the horizontal conductor of the vertical overlapping conductor (specifically, see Figure 8 as shown);

[0077] The above-mentioned rotating assembly is composed of a front rotating member 10, a limit pin 11, an upper fixing clip 12, a lower fixing clip 13 and a rear rotating member 14; among them, the front rotating member 10, the limit pin 11, the upper fixing clip 12, the lower fixing clip 13 and the rear rotating member 14 form an axial rotating mechanism; specifically: the upper fixing clip 12 and the lower fixing clip 13 are semi-circular ring structures, the rear rotating member 14 is located between the upper fixing clip 12 and the lower fixing clip 13, and is rotatably connected to the upper fixing clip 12 and the lower fixing clip 13; the upper fixing clip 12 and the lower fixing clip 13 are connected by screws; the front rotating member 10 is used for axial rotation relative to the upper fixing clip 12, the lower fixing clip 13 and the rear rotating member 14; the limit pin 11 is installed on the front rotating member 10, and the rotation angle of the front rotating member 10 is limited through the limit groove on the upper fixing clip 12; it is ensured that when the whole of the PVC elbow A7, the fiberglass tube A8 and the PVC elbow B9 rotates, the rotation angle can be kept within a preset range, preventing the hanging current-sensitive device from being damaged during use, and at the same time preventing the whole of the PVC elbow A7, the fiberglass tube A8 and the PVC elbow B9 from damaging the vertical overlapping conductor when rotating randomly.

[0078] In a specific implementation, the front rotating member 10, the upper fixing clip 12, the lower fixing clip 13 and the rear rotating member 14 are made of fiberglass material, and fiberglass has good mechanical properties, and is insulated and heat-resistant.

[0079] The optical component in the above-mentioned hanging current sensing device is composed of a mirror 1, a sensitive optical fiber 2, a wave plate 3, and a transmission optical fiber 4; among them, the sensitive optical fiber 2 is arranged inside the pipeline component and the rotating component; one end of the sensitive optical fiber 2 is inside the PVC elbow A7 for coating with a highly reflective film to form the mirror 1; the other end of the sensitive optical fiber 2 is inside the first PVC elbow C151 for axially fusing with one end of the wave plate 3 at 0°; the other end of the wave plate 3 is axially fused with the transmission optical fiber 4 at 45°; when current flows through, the generated magnetic field will cause the polarization of the light passing through the sensitive optical fiber to rotate; one end of the sensitive optical fiber is processed into a mirror, so that the light incident on the sensitive optical fiber can be reflected back along the original path, thus forming a closed-loop path, increasing the optical path and enhancing the sensitivity to magnetic field changes; due to the presence of the wave plate and the special fusion method, this change in polarization will be converted into a change in light intensity or other measurable parameters; finally, these changes can be converted into electrical signals through the transmission optical fiber, and then the corresponding current magnitude can be calculated.

[0080] The above-mentioned mirror 1 is fixed based on the mirror mounting component; specifically, the mirror mounting component is composed of a mirror mounting block 5 and a mirror cover plate 6; the mirror mounting block 5 and the mirror cover plate 6 form a box body for accommodating the mirror 1; the mirror 1 is fixed at a specified position on the mirror mounting block 5 by gluing; the mirror cover plate 6 is connected to the mirror mounting block 5 by screws.

[0081] In a specific implementation, the mirror mounting block 5 and the mirror cover plate 6 are made of fiberglass material, and fiberglass has good mechanical properties and is insulated and heat-resistant.

[0082] The above-mentioned wave plate 3 is fixed based on the wave plate mounting component; specifically, the wave plate mounting component includes a wave plate mounting block 20, a wave plate cover plate 21, a lock 22, and a spring 24; the wave plate mounting block 20 and the wave plate cover plate 21 form a box body for accommodating the wave plate 3; the wave plate 3 is fixed at a specified position on the wave plate mounting block 20 by gluing; the wave plate cover plate 21 is connected to the wave plate mounting block 20 by screws; two locks 22 with springs 24 are arranged on the wave plate mounting block 20; the locks 22 are cooperatively connected with the mirror mounting block 5; as can be seen Figure 8 as shown, when the lock 22 is pressed, the mirror mounting block 5 can be disconnected from the wave plate mounting block 20, and the hanging current sensing device is installed on the vertical overlapping conductor. After installation, the mirror mounting block 5 and the wave plate mounting block 20 are closed, and the lock 22 can lock the mirror mounting block 5 and the wave plate mounting block 20 to ensure the stability of the hanging current sensing device on the vertical overlapping conductor; after the test is completed, the mirror mounting block 5 and the wave plate mounting block 20 are separated, and the hanging current sensing device can be taken out.

[0083] In a specific implementation, the wave plate mounting block 20 and the wave plate cover plate 21 are made of fiberglass material. Fiberglass has good mechanical properties and is insulated and heat-resistant.

[0084] The above wave plate mounting assembly further includes a gland head 23; the gland head 23 is used to fix the transmission optical fiber 4.

[0085] Between several PVC elbow pipes and several fiberglass pipes in the above pipeline assembly, and between the mirror mounting block 5, the front rotating member 10, the rear rotating member 14, and the wave plate mounting block 20, they are all connected by gluing.

[0086] In a specific implementation, as the name implies, the PVC elbow pipe is made of PVC material. PVC material has good insulation and a mature elbow pipe processing technology. The forming process of the fiberglass pipe is to impregnate glass fiber filaments with resin and then cure them in a high-speed polymerization device integrating optoelectronics and heat, and then form them by traction and pultrusion. The fiberglass pipe is characterized by being light and hard, non-conductive, having high mechanical strength, anti-aging, heat-resistant, and corrosion-resistant.

[0087] Refer to Figures 11 to 13 As shown, it is a schematic structural diagram of a hanging current-sensitive device for measuring the current on the contact surface of a vertical overlapping conductor of the present invention mounted on a vertical overlapping conductor; specifically, when the hanging current-sensitive device 100 is in use, the mirror mounting assembly and the wave plate mounting assembly are combined together and fixed by a buckle 22. The hanging current-sensitive device 100 is hung on the horizontal conductor 200. Through its own structural characteristics, its front and rear positions and up and down positions relative to the horizontal conductor 200 are restricted; through the vertical conductor 300, its left and right positions relative to the horizontal conductor 200 are restricted; therefore, during the use of the hanging current-sensitive device 100, the position is relatively fixed and the hanging posture is relatively stable, and it does not need to be fixedly installed.

[0088] Next, the specific steps of installing the hanging current-sensitive device provided in the embodiment of the present invention on a vertical overlapping conductor will be described in detail. Specifically, refer to Figures 14 to 19 As shown:

[0089] Step 1, first place the hanging current-sensitive device 100 in a fully open state, and then place it in a horizontal posture below the horizontal conductor 200 and on one side of the vertical conductor 300 (on the right side in Figure 14 ), and the opening direction faces the vertical conductor 300;

[0090] Step 2, horizontally move the hanging current-sensitive device 100 in the opening direction (horizontally move to the left in Figure 15 ), and put the vertical conductor 300 into it;

[0091] Step 3, rotate the hanging current-sensitive device 100 around the vertical conductor 300 (inFigure 16 When rotated counterclockwise (the middle one), it still maintains a horizontal posture with the opening facing outward;

[0092] Step 4: Rotate the hanging current sensing device 100 around the horizontal conductor 200 to a vertical posture with the opening above the horizontal conductor 200. For details, refer to Figure 17 ;

[0093] Step 5: Close the hanging current sensing device 100, and the final structure is suspended above the horizontal conductor 200. For details, refer to Figure 18 .

[0094] In specific implementation, there are two types of the hanging current sensing device 100. Taking Figure 18 as an example, in the common type, the mirror mounting assembly and the waveplate mounting assembly are combined in the upper left corner. In special cases, when the hanging current sensing device 100 cannot be sleeved from the right side of the vertical conductor 300 and needs to be sleeved from the left side of the vertical conductor 300, the hanging current sensing device 100 is adjusted to the left-right mirror type. Taking Figure 19 as an example, that is, the mirror mounting assembly and the waveplate mounting assembly are combined in the upper right corner.

[0095] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0096] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hanging current sensing device for measuring the current on the contact surface of a vertically lapped conductor, which is used for measuring the vertically lapped conductor. The vertically lapped conductor includes a horizontal conductor and a vertical conductor. It is characterized in that: The structure of the hanging current sensing device is based on the restriction of the pipeline assembly; The pipeline assembly includes a first upper clamping area (001), a second upper clamping area (002), a first lower clamping area (003) and a second lower clamping area (004); Both the first upper clamping area (001) and the second upper clamping area (002) are adapted to the width of the horizontal conductor and are both used for clamping on the upper side of the horizontal conductor; The first lower clamping area (003) and the second lower clamping area (004) are both used for clamping on the lower side of the horizontal conductor; The distance between the first upper clamping area (001) and the second upper clamping area (002), and the distance between the first lower clamping area (003) and the second lower clamping area (004) are both adapted to the width of the vertical conductor; The first upper clamping area (001) includes a PVC elbow A (7) and a first PVC elbow C (151); The second upper clamping area (002) includes a PVC elbow B (9) and a second PVC elbow C (152); The first lower clamping area (003) includes a PVC elbow E (19); The second lower clamping area (004) includes a PVC elbow D (17); The PVC elbow A (7) and the PVC elbow B (9) are connected by a fiberglass tube A (8); The PVC elbow E (19) and the PVC elbow D (17) are connected by a fiberglass tube C (18); The first PVC elbow C (151) and the PVC elbow E (19) are connected by a first fiberglass tube B (161); The second PVC elbow C (152) and the PVC elbow D (17) are connected by a second fiberglass tube B (162); A rotating assembly is provided between the PVC elbow B (9) and the second PVC elbow C (152); The optical assembly in the hanging current sensing device is composed of a reflecting mirror (1), a sensitive optical fiber (2), a wave plate (3) and a transmission optical fiber (4); The sensitive optical fiber (2) is arranged inside the pipeline assembly and the rotating assembly; One end of the sensitive optical fiber (2) is inside the PVC elbow A (7) and is used for plating a high-reflection film to form the reflecting mirror (1); The other end of the sensitive optical fiber (2) is inside the first PVC elbow C (151) and is used for butt-welding with one end of the wave plate (3) at 0°; The other end of the wave plate (3) is butt-welded with the transmission optical fiber (4) at 45°; 2. The hanging current sensing device for measuring the current on the contact surface of vertically lapped conductors according to claim 1, characterized in that The rotating assembly is composed of a front rotating part (10), a limit pin (11), an upper fixing clip (12), a lower fixing clip (13) and a rear rotating part (14); The front rotating part (10), the limit pin (11), the upper fixing clip (12), the lower fixing clip (13) and the rear rotating part (14) form an axial rotating mechanism; The upper fixing clip (12) and the lower fixing clip (13) are semi-circular ring structures. The rear rotating member (14) is located between the upper fixing clip (12) and the lower fixing clip (13) and is rotatably connected to the upper fixing clip (12) and the lower fixing clip (13). The upper fixing clip (12) is connected to the lower fixing clip (13) by screws. The front rotating member (10) is used for axial rotation relative to the upper fixing clip (12), the lower fixing clip (13) and the rear rotating member (14). The limit pin (11) is installed on the front rotating member (10), and the rotation angle of the front rotating member (10) is limited by the limit groove on the upper fixing clip (12).

3. The hanging current sensing device for measuring the current on the contact surface of vertically lapped conductors according to claim 1, wherein The mirror (1) is fixed based on a mirror mounting assembly. The mirror mounting assembly is composed of a mirror mounting block (5) and a mirror cover plate (6). The mirror mounting block (5) and the mirror cover plate (6) form a box body for accommodating the mirror (1). The mirror (1) is fixed at a specified position on the mirror mounting block (5) by gluing. The mirror cover plate (6) is connected to the mirror mounting block (5) by screws.

4. The hanging current-sensitive device for measuring the current on the contact surface of vertically lapped conductors according to claim 3, characterized in that, The wave plate (3) is fixed based on a wave plate mounting assembly. The wave plate mounting assembly includes a wave plate mounting block (20), a wave plate cover plate (21), a latch (22) and a spring (24). The wave plate mounting block (20) and the wave plate cover plate (21) form a box body for accommodating the wave plate (3). The wave plate (3) is fixed at a specified position on the wave plate mounting block (20) by gluing. The wave plate cover plate (21) is connected to the wave plate mounting block (20) by screws. Two latches (22) with springs (24) are provided on the wave plate mounting block (20). The latches (22) are cooperatively connected with the mirror mounting block (5).

5. The hanging current sensing device for measuring the current on the contact surface of vertically lapped conductors according to claim 4, characterized in that, The wave plate mounting assembly further includes a BNC connector (23). The BNC connector (23) is used for fixing the transmission optical fiber (4).

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