Holding device for Rogowski coil
By designing the holding device, the combination of fixed blocks, elastic plastic strips, cable ties, cages, threaded rods and press plates is solved, and the problem of wear and position changes in the Roche coil during use is achieved, achieving stable fixation and protection.
Patent Information
- Application Number
- CN202422281487.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-19
AI Technical Summary
During use, existing Roche coils are prone to wear and position changes due to vibration with the conductor to be measured, and lack effective holding devices.
A holding device is designed, including a fixing block, elastic plastic strip, cable ties, cages, threaded rods and press plates. Through the use of these components, the Roche coil is stable and fixed to avoid direct contact with the conductor under test.
It effectively prevents wear and position changes between the Roche coil and the conductor under test, achieving better protection effect.
Smart Images
Figure CN223139664U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of holding devices for Rogowski coils, and specifically relates to a holding device for Rogowski coils. Background Art
[0002] The Rogowski Coil, also known as the Rogowski coil, the Luo's coil or the air-core coil, is an alternating current sensor, which is a hollow toroidal coil. It has two types, flexible and rigid, and can be directly sleeved on the conductor to be measured to measure alternating current. The Rogowski coil is suitable for measuring alternating current in a relatively wide frequency range, has no special requirements for the conductor and size, has a fast instantaneous response ability, and is widely used in occasions where traditional current measuring devices such as current transformers cannot be used, for current measurement, especially for high-frequency and large-current measurement.
[0003] Currently, when in use, the Rogowski coil is directly sleeved on the conductor to be measured to measure alternating current. When the existing Rogowski coil is sleeved on the conductor to be measured, the surface of the Rogowski coil often directly contacts the surface of the conductor to be measured. When the conductor to be measured vibrates during use, the contact position between the conductor to be measured and the Rogowski coil is prone to wear. In order to prevent the coil from wearing and its position from changing, there is an urgent need for a holding device for the Rogowski coil. Summary of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the utility model provides a holding device for Rogowski coils, which solves the problems raised in the above background art.
[0006] (2) Technical Solutions
[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: A holding device for Rogowski coils includes a Rogowski coil main body. A connection block is arranged at the port connection of the Rogowski coil main body. An installation seat is fixedly connected to the upper surface of the connection block. A fixing block is installed on the surface of the installation seat. An installation groove is opened on the upper surface of the installation seat. An installation block is fixedly connected to the lower surface of the fixing block. The installation block is detachably connected in the installation groove. An elastic plastic strip is fixedly connected to the left side surface of the fixing block. A tie strap is arranged on the surface of the elastic plastic strip. The elastic plastic strip is connected to the Rogowski coil main body through the tie strap. The other end of the elastic plastic strip is fixedly connected to a fixing head. An insertion block is fixedly connected to the surface of the fixing head. A slot is opened on the right side surface of the fixing block. The insertion block is detachably connected in the slot. A holding frame is fixedly connected to the upper surface of the fixing block. A threaded hole is opened on the upper surface of the holding frame. A threaded rod is threadedly connected to the surface of the threaded hole. A rotating block is fixedly connected to the upper end surface of the threaded rod. The lower end surface of the threaded rod is rotatably connected to a pressing plate through a bearing.
[0008] Optionally, hemispherical card slots are formed on the side surface of the installation groove, a first groove is formed on the side surface of the installation block, a hemispherical card block is slidably connected to the surface of the first groove, a first spring is fixedly connected to the inner surface of the first groove, the other end of the first spring is fixedly connected to the hemispherical card block, the hemispherical card block is clamped in the hemispherical card slot, and the number of the first groove, the first spring, the hemispherical card block and the hemispherical card slot is four and they are distributed in a rectangular array.
[0009] Optionally, the number of the cable ties is several, and they are evenly distributed on the surfaces of the Rogowski coil body and the elastic plastic strip.
[0010] Optionally, a second groove is formed on the upper surface of the insertion block, a clamping block is slidably connected to the surface of the second groove, a second spring is fixedly connected to the bottom surface of the second groove, and the other end of the second spring is fixedly connected to the lower surface of the clamping block.
[0011] Optionally, a through groove is formed on the top surface of the slot, a ejector rod is slidably connected to the surface of the through groove, and the size and position of the clamping block are adapted to the size and position of the through groove.
[0012] Optionally, a sliding groove is formed on the inner side surface of the holding frame, a sliding block is fixedly connected to the left side surface of the pressing plate, and the sliding block slides in the sliding groove.
[0013] The utility model provides a holding device for a Rogowski coil, and has the following beneficial effects:
[0014] 1. The holding device for the Rogowski coil, through the settings of the fixing block, elastic plastic strip, cable tie, holding frame, threaded rod and pressing plate, enables the Rogowski coil to be conveniently fixed to the conductor under test. When in use, when it is necessary to fix the Rogowski coil body on the outside of the conductor under test, the staff installs the holding device on the inside of the Rogowski coil body. During installation, first insert the installation block inside the fixing block into the installation groove on the surface of the mounting seat. During the insertion process, the hemispherical clamping block protruding from the outer surface of the installation block is blocked, and the hemispherical clamping block is squeezed into the first groove. After the installation block completely enters the installation groove, at this time, the staff rotates the installation block to make the hemispherical clamping block rotate to a position corresponding to the hemispherical clamping groove. After the hemispherical clamping block and the hemispherical clamping groove are aligned, under the action of the first spring, the hemispherical clamping block pops outwards, so that the hemispherical clamping block is clamped in the hemispherical clamping groove. At this time, place the conductor under test inside the holding frame, and then tighten the rotating block to drive the pressing plate to move downwards by the threaded rod. During the movement of the pressing plate, the sliding block on the side of the pressing plate slides in the chute, playing a role in limiting the position. By the downward movement of the pressing plate, the conductor under test is clamped between the pressing plate and the holding frame. Then, the staff bends one end of the elastic plastic strip with the fixing head to the right side of the fixing block, so that the insertion block on the surface of the fixing head is inserted into the slot. During the insertion process, the clamping block is squeezed into the second groove. After the insertion block completely enters, the clamping block pops outwards under the action of the second spring, so that the clamping block is snapped into the through groove. When it is necessary to pull out the insertion block from the slot, just press down the ejector rod to push the clamping block out of the through groove, and then the insertion block can be easily taken out of the slot. After the insertion block is fixed in the slot, at this time, the elastic plastic strip is in a circular ring state. The staff then uses a cable tie to fix the Rogowski coil body and the elastic plastic strip, and connects one end of the Rogowski coil body to the connecting block. At this time, the Rogowski coil body is sleeved on the outside of the conductor under test. At the same time, the conductor under test is fixed between the holding frame and the pressing plate, avoiding direct contact between the Rogowski coil body and the conductor under test. When the conductor under test vibrates, it will not cause wear at the connection between the Rogowski coil body and the conductor under test, playing a role in preventing the coil from wearing and its position from changing, achieving the purpose of better protecting the Rogowski coil. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0016] Figure 2 is a structural schematic diagram of the front view section of the present utility model;
[0017] Figure 3 For the present utility model Figure 2 is a structural schematic diagram at position A;
[0018] Figure 4 For the present utility model Figure 3 is a structural schematic diagram at position B;
[0019] Figure 5 For the present utility model Figure 3 is a schematic structural view of the position C in it.
[0020] In the figure: 1, Rogowski coil body; 2, connecting block; 3, mounting seat; 4, fixing block; 5, mounting groove; 6, mounting block; 7, first groove; 8, first spring; 9, hemispherical clamping block; 10, hemispherical clamping groove; 11, elastic plastic strip; 12, tie strap; 13, fixing head; 14, inserting block; 15, inserting slot; 16, second groove; 17, second spring; 18, clamping block; 19, through groove; 20, ejector rod; 21, holding frame; 22, threaded hole; 23, threaded rod; 24, pressing plate; 25, sliding groove; 26, sliding block; 27, rotating block. Specific embodiments
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0022] Embodiment 1
[0023] Please refer to Figures 1 to 5, the present utility model provides a technical solution: a holding device for a Rogowski coil, including a Rogowski coil main body 1, a connection block 2 is arranged at the port connection of the Rogowski coil main body 1, a mounting seat 3 is fixedly connected to the upper surface of the connection block 2, a fixing block 4 is mounted on the surface of the mounting seat 3, a mounting groove 5 is opened on the upper surface of the mounting seat 3, a mounting block 6 is fixedly connected to the lower surface of the fixing block 4, a hemispherical card slot 10 is opened on the side surface of the mounting groove 5, a first groove 7 is opened on the side surface of the mounting block 6, a hemispherical card block 9 is slidably connected to the surface of the first groove 7, a first spring 8 is fixedly connected to the inner surface of the first groove 7, the other end of the first spring 8 is fixedly connected to the hemispherical card block 9, the hemispherical card block 9 is clamped in the hemispherical card slot 10, the number of the first groove 7, the first spring 8, the hemispherical card block 9 and the hemispherical card slot 10 is four and they are distributed in a rectangular array, the mounting block 6 is detachably connected in the mounting groove 5, an elastic plastic strip 11 is fixedly connected to the left side surface of the fixing block 4, a tie strap 12 is arranged on the surface of the elastic plastic strip 11, the elastic plastic strip 11 is connected to the Rogowski coil main body 1 through the tie strap 12, the number of the tie straps 12 is several and they are evenly distributed on the surfaces of the Rogowski coil main body 1 and the elastic plastic strip 11, the other end of the elastic plastic strip 11 is fixedly connected to a fixing head 13, an insertion block 14 is fixedly connected to the surface of the fixing head 13, a slot 15 is opened on the right side surface of the fixing block 4, the insertion block 14 is detachably connected in the slot 15, a second groove 16 is opened on the upper surface of the insertion block 14, a clamping block 18 is slidably connected to the surface of the second groove 16, a second spring 17 is fixedly connected to the bottom surface of the second groove 16, the other end of the second spring 17 is fixedly connected to the lower surface of the clamping block 18, a through groove 19 is opened on the top surface of the slot 15, a push rod 20 is slidably connected to the surface of the through groove 19, the size and position of the clamping block 18 are adapted to the size and position of the through groove 19, a holding frame 21 is fixedly connected to the upper surface of the fixing block 4, a threaded hole 22 is opened on the upper surface of the holding frame 21, a threaded rod 23 is threadedly connected to the surface of the threaded hole 22, a rotating block 27 is fixedly connected to the upper end surface of the threaded rod 23, the lower end surface of the threaded rod 23 is rotatably connected to a pressing plate 24 through a bearing, a sliding groove 25 is opened on the inner side surface of the holding frame 21, a sliding block 26 is fixedly connected to the left side surface of the pressing plate 24, and the sliding block 26 slides in the sliding groove 25.
[0024] In order to achieve a better purpose of protecting the Rogowski coil, during use, through the settings of the fixing block 4, elastic plastic strip 11, cable tie 12, holding frame 21, threaded rod 23 and pressing plate 24, the Rogowski coil has the effect of being conveniently fixed to the conductor under test. During use, when it is necessary to fix the Rogowski coil body 1 outside the conductor under test, the staff installs the holding device inside the Rogowski coil body 1. During installation, first insert the mounting block 6 inside the fixing block 4 into the mounting groove 5 on the surface of the mounting seat 3. During the insertion process, the hemispherical clamping block 9 protruding from the outer surface of the mounting block 6 is blocked, and the hemispherical clamping block 9 is squeezed into the first groove 7. When the mounting block 6 completely enters the mounting groove 5, then the staff rotates the mounting block 6 to make the hemispherical clamping block 9 rotate to a position corresponding to the hemispherical clamping groove 10. After the hemispherical clamping block 9 and the hemispherical clamping groove 10 are aligned, under the action of the first spring 8, the hemispherical clamping block 9 pops outwards, so that the hemispherical clamping block 9 is clamped in the hemispherical clamping groove 10. At this time, place the conductor under test inside the holding frame 21, and then tighten the rotating block 27 to drive the threaded rod 23 to drive the pressing plate 24 to move downwards. During the movement of the pressing plate 24, the slider 26 on the side of the pressing plate 24 slides in the sliding groove 25, playing a role of limiting. Through the downward movement of the pressing plate 24, the conductor under test is clamped between the pressing plate 24 and the holding frame 21. Then the staff bends one end of the elastic plastic strip 11 driving the fixing head 13 to the right side of the fixing block 4, so that the insertion block 14 on the surface of the fixing head 13 is inserted into the insertion slot 15. During the insertion process, the clamping block 18 is squeezed into the second groove 16. After the insertion block 14 completely enters, the clamping block 18 pops outwards under the action of the second spring 17, so that the clamping block 18 is snapped into the through groove 19. When it is necessary to pull out the insertion block 14 from the insertion slot 15, just press down the ejector rod 20 to push the clamping block 18 out of the through groove 19, and then the insertion block 14 can be easily taken out of the insertion slot 15. After the insertion block 14 is fixed in the insertion slot 15, at this time the elastic plastic strip 11 is in a circular ring state. The staff then uses the cable tie 12 to fix the Rogowski coil body 1 and the elastic plastic strip 11, and connects one end of the Rogowski coil body 1 to the connecting block 2. At this time, the Rogowski coil body 1 is sleeved outside the conductor under test. At the same time, the conductor under test is fixed between the holding frame 21 and the pressing plate 24, avoiding direct contact between the Rogowski coil body 1 and the conductor under test. When the conductor under test vibrates, it will not cause wear at the connection between the Rogowski coil body 1 and the conductor under test, playing a role in preventing the coil from wearing and the position from changing, and achieving a better purpose of protecting the Rogowski coil.
[0025] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.
Claims
1. A holding device for a Rogowski coil, comprising a Rogowski coil body (1), characterized in that: A connection block (2) is provided at the port connection of the Rogowski coil body (1). An installation seat (3) is fixedly connected to the upper surface of the connection block (2). A fixing block (4) is installed on the surface of the installation seat (3). An installation groove (5) is formed on the upper surface of the installation seat (3). An installation block (6) is fixedly connected to the lower surface of the fixing block (4). The installation block (6) is detachably connected in the installation groove (5). A flexible plastic strip (11) is fixedly connected to the left side surface of the fixing block (4). A cable tie (12) is arranged on the surface of the flexible plastic strip (11). The flexible plastic strip (11) is connected to the Rogowski coil body (1) through the cable tie (12). The other end of the flexible plastic strip (11) is fixedly connected to a fixing head (13). An insertion block (14) is fixedly connected to the surface of the fixing head (13). A slot (15) is formed on the right side surface of the fixing block (4). The insertion block (14) is detachably connected in the slot (15). A holding frame (21) is fixedly connected to the upper surface of the fixing block (4). A threaded hole (22) is formed on the upper surface of the holding frame (21). A threaded rod (23) is threadedly connected to the surface of the threaded hole (22). A rotating block (27) is fixedly connected to the upper end surface of the threaded rod (23). The lower end surface of the threaded rod (23) is rotatably connected to a pressing plate (24) through a bearing.
2. The holding device for a Rogowski coil according to claim 1, characterized in that: A hemispherical card slot (10) is formed on the side surface of the installation groove (5). A first groove (7) is formed on the side surface of the installation block (6). A hemispherical card block (9) is slidably connected to the surface of the first groove (7). A first spring (8) is fixedly connected to the inner surface of the first groove (7). The other end of the first spring (8) is fixedly connected to the hemispherical card block (9). The hemispherical card block (9) is clamped in the hemispherical card slot (10). The number of the first groove (7), the first spring (8), the hemispherical card block (9) and the hemispherical card slot (10) is four and they are distributed in a rectangular array.
3. The holding device for Rogowski coils according to claim 1, characterized in that: The number of the cable ties (12) is several and they are evenly distributed on the surfaces of the Rogowski coil body (1) and the flexible plastic strip (11).
4. The holding device for a Rogowski coil according to claim 1, characterized in that: A second groove (16) is formed on the upper surface of the insertion block (14). A clamping block (18) is slidably connected to the surface of the second groove (16). A second spring (17) is fixedly connected to the bottom surface of the second groove (16). The other end of the second spring (17) is fixedly connected to the lower surface of the clamping block (18).
5. The holding device for a Rogowski coil according to claim 4, characterized in that: A through groove (19) is formed on the top surface of the slot (15). A push rod (20) is slidably connected to the surface of the through groove (19). The size and position of the clamping block (18) are adapted to the size and position of the through groove (19).
6. The holding device for Rogowski coils according to claim 1, characterized in that: A sliding groove (25) is formed on the inner side surface of the holding frame (21). A sliding block (26) is fixedly connected to the left side surface of the pressing plate (24). The sliding block (26) slides in the sliding groove (25).