A fixed installation structure and method of a core-penetrating current transformer

Abstract

The application provides a fixed mounting structure and method of a core-penetrating current transformer, and belongs to the technical field of power equipment installation. The structure comprises a supporting mechanism, a sliding assembly, a mounting mechanism and a limiting mechanism. Through cooperation of the mechanisms, the installation process of the core-penetrating current transformer is simplified, and installation efficiency and universality are improved. The supporting mechanism improves stability, and the sliding assembly and the mounting mechanism can be adjusted according to different busbar sizes and transformer models. The limiting mechanism increases the connection stability between the mounting mechanism and the busbar. The components of the structure are reasonably designed, the structure is compact, and the occupied space is small. The structure is particularly suitable for narrow installation space in a switch cabinet, solves the problem of inconvenience in construction in narrow space in the traditional screw fixing mode, has a relatively low cost, and has a good market prospect.

Description

Technical Field

[0001] This invention belongs to the field of power equipment installation technology, specifically relating to a fixed installation structure and method for a through-core current transformer. Background Technology

[0002] Current transformers are among the most common power components in current power systems. Their main function is to convert large primary currents into smaller 5A or 1A currents usable on the secondary side. With the State Grid's requirements for intelligent and miniaturized power equipment, major switchgear manufacturers have also optimized and miniaturized their switchgear. Therefore, the size of corresponding components within the switchgear has also faced certain requirements. Through-core current transformers have the advantage of smaller size compared to ordinary cast-in-place current transformers, so major manufacturers have begun to choose through-core current transformers.

[0003] However, existing through-core current transformers are generally installed using screws, with each transformer requiring four M8 screws. Both installation and removal require tightening or loosening these screws, necessitating specialized tools due to limited space. Furthermore, the installation space in switchgear is typically quite small, making construction and operation very inconvenient, resulting in significant difficulties for installation and subsequent maintenance. Additionally, transformer installation takes a considerable amount of time. Therefore, to effectively avoid the risks caused by insecure transformer mounting and shorten construction time, it is crucial to significantly improve work efficiency. Summary of the Invention

[0004] To address the shortcomings of the existing technology, a fixed installation structure and method for a through-core current transformer is provided, which changes the existing fixed installation method of the through-core current transformer. This fixed installation method has a good fixing effect, is easy to operate and has high installation efficiency. At the same time, the development of the transformer bracket has wide applicability and economy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The present invention provides a fixed installation structure for a through-core current transformer, including a support mechanism, a sliding component, an installation mechanism, and a limiting mechanism that abut against the through-core current transformer.

[0007] The supporting mechanism includes two supporting bars, the two ends of which are fixed by sleeve caps. The sliding component includes a sliding block, which is slidably connected to the two supporting bars through two grooves. The mounting mechanism includes a screw threadedly connected to the sliding block. A rotation adjustment mechanism is fixedly connected to the top of the screw, and an insulating column is rotatably connected to the bottom of the screw. A pressing mechanism for pressing down the busbar is installed between the two insulating columns. A limiting mechanism for sliding limit is also installed between the sliding component and the screw.

[0008] In one embodiment of the present invention, elastic arc-shaped protrusions are fixedly connected to both outer sides of the support bar, and two insertion holes are provided at one end of the sleeve cap.

[0009] In one embodiment of the present invention, an arc-shaped groove is provided on the inner side of the insertion hole, and an elastic piece is fixedly connected to the inner side of the insertion hole on one side of the groove. The elastic piece is U-shaped.

[0010] In one embodiment of the present invention, the sliding block has a first threaded hole in the middle for adapting to the screw, and the rotation adjustment mechanism includes a hexagonal nut fixedly connected to the top of the screw, the top of the hexagonal nut has a hexagonal hole, and the top of the hexagonal hole has a cross groove.

[0011] In one embodiment of the present invention, a second threaded hole is provided at the top of the insulating post, and the second threaded hole is threadedly connected to the bottom of the screw.

[0012] In one embodiment of the present invention, the pressing mechanism includes a pressing plate, both ends of which are provided with insertion slots, and the middle part of the pressing plate is provided with a hollow slot. Both ends of the insertion slots are provided with insertion pieces, one end of which is connected to the outside of the insulating column through a rotating connection mechanism. The pressing plate is made of insulating material.

[0013] In one embodiment of the present invention, the rotating connection mechanism includes a sleeve fixedly connected to the top of one end of the plug-in piece, the sleeve having a ring-shaped groove on its inner side, and the ring-shaped groove being rotatably sleeved with a ring-shaped protrusion fixedly connected to the outer side of the insulating post.

[0014] In one embodiment of the present invention, the limiting mechanism includes an annular groove formed on the top of the sliding block, the two sides of the annular groove communicating with the inside of the sliding groove, and a spring sleeved on the outside of the screw is provided inside the annular groove, the top of the spring abutting against the bottom of the hexagonal nut.

[0015] In one embodiment of the present invention, a plurality of ratchet grooves are provided on the outer side of the support bar, and a ratchet-shaped protrusion is fixedly connected inside the groove, the ratchet-shaped protrusion engaging with the ratchet groove.

[0016] In one embodiment of the present invention, the support mechanism is a support bar, and the surface of the support bar is provided with a plurality of third threaded holes.

[0017] A method for operating the fixed installation structure, comprising:

[0018] The support mechanism is brought into contact with the through-core current transformer;

[0019] Depending on the different models of through-core current transformers or busbar specifications, the sliding assembly is used to slide the mounting mechanism on the support mechanism to adjust the distance between the two mounting mechanisms. During adjustment, a limiting mechanism is used to prevent the sliding assembly from shifting during installation.

[0020] After the distance is adjusted, the busbar is pressed tightly by the installation mechanism, and at the same time the support mechanism abuts against the inner wall of the core hole of the through-core current transformer to complete the installation and fixing of the through-core current transformer.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1) This invention, through the cooperation of a support mechanism, sliding component, installation mechanism, and limiting mechanism, makes the installation process of the through-core current transformer simpler and faster. The design of the support bar and sliding block allows the equipment to slide and be positioned easily in a narrow space, greatly improving installation efficiency. At the same time, it can also adapt to the installation of different through-core current transformers, with good versatility. The arc-shaped protrusion of the support bar and the elastic plate design of the sleeve cap ensure the stability of the support mechanism after assembly, allowing personnel to select the appropriate length of support bar according to the fixed installation needs of the through-core current transformer. The threaded connection of the sliding block and screw, as well as the pressing mechanism, ensure that the transformer can be firmly fixed on the busbar and abutted against the through-core current transformer after installation. While ensuring that the through-core current transformer can be installed quickly, it can also ensure that it does not easily loosen, improving the reliability of equipment operation.

[0023] 2) The support mechanism, sliding component and installation mechanism of the present invention can be adjusted according to different busbar sizes and transformer models, and have high adaptability. When the hexagonal nut of the installation mechanism drives the screw to move down, the compressed spring presses the support bar to prevent the sliding block from sliding on its own, and increases the connection stability between the installation mechanism and the busbar.

[0024] 3) The meshing of the ratchet groove and ratchet-shaped protrusions allows the sliding block to slide in one direction only on the support bar. Combined with the support of the pressing mechanism, the sliding block can also be locked at the upper limit of the support bar, which further meets the installation requirements of different specifications of through-core current transformers and also improves the connection stability between the installation mechanism and the busbar.

[0025] 4) By using insulating nuts, insulating posts and lower pressure plates made of insulating materials, current is effectively prevented from being conducted between the through-core transformer and the support, which enhances the electrical safety of the system and ensures the safety of equipment and personnel. The hexagonal nut design at the top of the screw can be operated with conventional tools or adjusted with a Phillips screwdriver through the cross slot, which makes it convenient for construction personnel to choose the appropriate tools according to the site conditions and simplifies the installation process.

[0026] 5) The components of this invention are reasonably designed, have a compact structure, and occupy little space. They are particularly suitable for installation in narrow spaces within switch cabinets, effectively solving the problem of inconvenient construction in narrow spaces using traditional screw fixing methods. Moreover, the cost is relatively low, and it has a good market prospect in the field of instrument transformer installation. Attached Figure Description

[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0028] Figure 1 A schematic diagram of a fixed installation structure for a through-core current transformer provided for an embodiment of the present invention;

[0029] Figure 2 One of the structural schematic diagrams of a fixed installation structure for a through-core current transformer provided for an embodiment of the present invention;

[0030] Figure 3 A schematic diagram showing the installation mechanism and limiting mechanism of a fixed installation structure for a through-core current transformer provided for an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of the sliding component structure of a fixed installation structure for a through-core current transformer provided for an embodiment of the present invention;

[0032] Figure 5 A schematic diagram of the cross-sectional structure of the sleeve cap of a through-core current transformer provided for an embodiment of the present invention.

[0033] Figure 6 A schematic diagram of embodiment 2 of the fixed installation structure of a through-core current transformer provided by the present invention;

[0034] Figure 7 A schematic diagram of the sliding block structure of Embodiment 2 of a fixed installation structure for a through-core current transformer provided by an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of embodiment 3 of a fixed installation structure for a through-core current transformer provided by an embodiment of the present invention.

[0036] Icons: 100, Support mechanism; 110, Support bar; 111, Arc-shaped protrusion; 112, Rattle groove; 113, Third threaded hole; 120, Socket cap; 121, Insertion hole; 122, Groove; 123, Elastic sheet; 200, Sliding assembly; 210, Sliding block; 211, Slide groove; 212, Rattle-shaped protrusion; 220, First threaded hole; 300, Mounting mechanism; 310, Screw; 320, Rotation adjustment Mechanism; 321, Hexagonal nut; 322, Hexagonal hole; 323, Cross groove; 330, Insulating post; 331, Second threaded hole; 340, Pressing mechanism; 341, Pressing plate; 342, Insertion groove; 343, Insertion piece; 344, Hollowed-out groove; 350, Rotating connection mechanism; 351, Sleeve sleeve; 352, Ring groove; 353, Ring protrusion; 400, Limiting mechanism; 410, Annular groove; 420, Spring. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] Example 1

[0045] Please see Figures 1-6 A fixed installation structure for a through-core current transformer includes a support mechanism 100, a sliding assembly 200, an installation mechanism 300, and a limiting mechanism 400 that abut against the through-core current transformer. The support mechanism 100 includes two support bars 110, the two ends of which are fixedly connected by sleeve caps 120. The sliding assembly 200 includes a sliding block 210, which is slidably connected to the two support bars 110 through two grooves 211. The installation mechanism 300 includes a screw 310 threadedly connected to the sliding block 210. A rotation adjustment mechanism 320 is fixedly connected to the top of the screw 310, and an insulating column 330 is rotatably connected to the bottom of the screw 310. A pressing mechanism 340 for pressing down the busbar is installed between the two insulating columns 330. A limiting mechanism 400 for sliding limit is also installed between the sliding assembly 200 and the screw 310.

[0046] Specifically, the support mechanism 100 is used to abut against the through-core current transformer. The support mechanism 100 includes two support bars 110, the two ends of which are fixed by sleeve caps 120. Users can select a suitable length of support bar 110 according to the specific model of the through-core current transformer or the specifications of the busbar. Furthermore, the sliding block 210 of the sliding assembly 200 has a groove 211, which allows the installation structure to be quickly installed on the support bars 110. This also allows for adjustments based on the specific model of the through-core current transformer or the specifications of the busbar. The distance between the two mounting mechanisms 300 can be flexibly adjusted. The rotation adjustment mechanism 320 of the mounting mechanism 300 can drive the screw 310 to rotate, simultaneously adjusting the clamping degree of the insulating column 330 and the pressing mechanism 340 on the busbar. This also allows the support bar 110 of the support mechanism 100 to abut against the inner wall of the core hole of the through-core current transformer, thus enabling rapid installation and fixation of the through-core current transformer. The limiting mechanism 400 can be used to limit the sliding component 200, effectively preventing displacement of the through-core current transformer during installation. Therefore, this fixed installation structure, through the support mechanism 100, sliding component 200, mounting mechanism 300, and limiting mechanism 400, enables rapid, stable, and convenient installation of the through-core current transformer.

[0047] In this embodiment: both ends of the support bar 110 are fixedly connected with elastic arc-shaped protrusions 111, one end of the sleeve cap 120 is provided with two insertion holes 121, the inner side of the insertion hole 121 is provided with an arc-shaped groove 122, and one side of the groove 122 is provided with an elastic piece 123 fixedly connected to the inner side of the insertion hole 121. The elastic piece 123 is U-shaped.

[0048] Specifically, after the two support bars 110 are inserted into the insertion holes 121 of the socket cap 120, the installation of the two support bars 110 and the socket cap 120 can be completed quickly. Moreover, the elastic arc-shaped protrusion 111 and the arc-shaped groove 122 cooperate to effectively prevent the socket cap 120 from detaching from the ends of the two support bars 110. After the elastic piece 123 is restored, it can further block the arc-shaped protrusion 111, further preventing the socket cap 120 from detaching from the support bar 110 and improving the stability of the connection.

[0049] The two support bars 110 are inserted into the socket cap 120 for positioning, which allows the fixed installation structure to be disassembled and packaged, and can be quickly and flexibly assembled and selected on the construction site.

[0050] In this embodiment, the sliding block 210 has a first threaded hole 220 adapted to the screw 310 in the middle, and the rotation adjustment mechanism 320 includes a hexagonal nut 321 fixedly connected to the top of the screw 310. The top of the hexagonal nut 321 has a hexagonal hole 322, and the top of the hexagonal hole 322 has a cross groove 323.

[0051] Specifically, the first threaded hole 220 can be used for the screw 310 to pass through and connect, while the hexagonal nut 321 allows personnel to rotate it using a wrench. The hexagonal hole 322 allows the hexagonal nut 321 to be rotated using a hexagonal wrench, and the cross groove 323 allows the hexagonal nut 321 to be rotated using a screwdriver. These multiple ways of rotating the hexagonal nut 321 make it convenient for personnel to choose the appropriate tools according to the construction site. It is especially suitable for the narrow installation space inside the switch cabinet, effectively solving the problem of the inconvenience of traditional screw fixing methods in narrow spaces. When rotating the hexagonal nut 321, the screw 310 can also rotate along with it.

[0052] In this embodiment, the top of the insulating post 330 is provided with a second threaded hole 331, which is threadedly connected to the bottom of the screw 310.

[0053] Specifically, the insulating post 330 can be installed at the bottom of the screw 310 through the provided second threaded hole 331. This also makes it convenient for personnel to select the appropriate size insulating post 330 according to the specifications of the busbar. The design of the insulating post 330 can also prevent current from being conducted between the through-core transformer and the support mechanism 100, ensuring the safety of equipment and personnel.

[0054] In this embodiment, the pressing mechanism 340 includes a pressing plate 341. Both ends of the pressing plate 341 are provided with insertion slots 342, and the middle part of the pressing plate 341 is provided with a hollow slot 344. Both ends of the insertion slots 342 are provided with insertion pieces 343. One end of the insertion piece 343 is connected to the outside of the insulating post 330 through a rotating connection mechanism 350. The pressing plate 341 is made of insulating material.

[0055] Specifically, when fixing the busbar, a pressure plate 341 of appropriate length and width can be selected and fitted onto the outside of the plug-in piece 343 in advance. Then, as the screw 310 moves down, the pressure plate 341 also presses down on the busbar. In conjunction with the support mechanism 100, it abuts against the inner wall of the core hole of the through-core current transformer, thereby firmly fixing the through-core current transformer onto the busbar.

[0056] In this embodiment, the rotating connection mechanism 350 includes a sleeve 351 fixedly connected to the top of one end of the plug-in piece 343. A ring-shaped groove 352 is provided on the inner side of the sleeve 351. The ring-shaped groove 352 is rotatably sleeved with a ring-shaped protrusion 353 fixedly connected to the outer side of the insulating post 330.

[0057] Specifically, the relative position between the lower pressure plate 341 and the insulating post 330 can be adjusted by the sleeve 351, so that the angle of the plug-in piece 343 can be flexibly changed, ensuring that the lower pressure plate 341 can be stably sleeved with the plug-in piece 343. The ring-shaped protrusion 353 and the ring-shaped groove 352 cooperate to ensure that the sleeve 351 can rotate stably, while also preventing the sleeve 351 from falling off.

[0058] In this embodiment, the limiting mechanism 400 includes an annular groove 410 formed on the top of the sliding block 210. The two sides of the annular groove 410 are connected to the inside of the sliding groove 211. A spring 420 is provided inside the annular groove 410 and sleeved on the outside of the screw 310. The top of the spring 420 abuts against the bottom of the hexagonal nut 321.

[0059] Specifically, when the hexagonal nut 321 drives the screw 310 to move downward, the hexagonal nut 321 compresses the spring 420 so that it passes through the annular groove 410 to apply force to the support bar 110, preventing the sliding block 210 from sliding on its own, increasing the connection stability between the support mechanism 100 and the busbar, and preventing the through-core current transformer from shifting during installation.

[0060] Optionally, the fixed installation structure of the through-core current transformer mainly consists of a support mechanism 100, a sliding assembly 200, an installation mechanism 300, and a limiting mechanism 400. The support mechanism 100 abuts against the through-core current transformer. The sliding assembly 200 allows the installation mechanism 300 to slide on the support mechanism 100, thereby adjusting the distance between the two installation mechanisms 300 to accommodate different models of through-core current transformers or busbar specifications. The installation mechanism 300 presses the busbar together via a screw 310, an insulating column 330, and a pressing mechanism 340. Simultaneously, the support bar 110 of the support mechanism 100 abuts against the inner wall of the core hole of the through-core current transformer, completing the installation and fixing of the through-core current transformer. The limiting mechanism 400 prevents the sliding assembly 200 from shifting during installation.

[0061] Optionally, a support bar 110 of appropriate length is selected according to the specific model of the through-core current transformer or the specifications of the busbar. The two ends of the two support bars 110 are connected and fixed using socket caps 120. One end of the socket cap 120 has two insertion holes 121, and the inner side of the insertion hole 121 has an arc-shaped groove 122 that engages with the elastic arc-shaped protrusions 111 at both ends of the support bar 110 to prevent the socket cap 120 from falling off. Simultaneously, an elastic piece 123 is also provided inside the insertion hole 121 to further increase the stability of the connection.

[0062] Optionally, the sliding block 210 is slidably connected to the two support bars 110 through two grooves 211. The distance between the two sliding blocks 210 can be adjusted as needed to suit the specific model of the through-core current transformer or the specifications of the busbar.

[0063] Optionally, the screw 310 passes through the first threaded hole 220 in the middle of the sliding block 210 and is threadedly connected to the sliding block 210. A rotation adjustment mechanism 320, including a hexagonal nut 321, a hexagonal hole 322, and a cross groove 323, is fixedly connected to the top of the screw 310, facilitating rotation using different tools. An insulating post 330 is threadedly connected to the bottom of the screw 310 through a second threaded hole 331. A pressing mechanism 340 (including a pressing plate 341, a connector 343, etc.) is installed on the insulating post 330, ready to press down and fix the busbar.

[0064] Optionally, an annular groove 410 is formed at the top of the sliding block 210, and a spring 420 is provided inside the annular groove 410. The top of the spring 420 abuts against the bottom of the hexagonal nut 321. When the hexagonal nut 321 drives the screw 310 to move downward, the spring 420 is compressed and passes through the annular groove 410 to exert force on the support bar 110, preventing the sliding block 210 from sliding on its own.

[0065] Optionally, the through-hole current transformer is placed on the support mechanism 100, with its inner wall abutting against the support bar 110. The busbar is placed below the through-hole current transformer and pressed down and fixed by the pressing mechanism 340. As needed, the rotation adjustment mechanism 320 is adjusted so that the screw 310 drives the insulating column 330 and the pressing mechanism 340 to press the busbar tightly.

[0066] Example 2

[0067] Please see Figures 6-7 The technical feature that distinguishes this embodiment from embodiment 1 is that: multiple ratchet grooves 112 are provided on the outer side of the support bar 110, and ratchet-shaped protrusions 212 are fixedly connected inside the sliding groove 211, and the ratchet-shaped protrusions 212 are engaged with the ratchet grooves 112.

[0068] Specifically, firstly, one end of the lower pressure plate 341 is sleeved with one of the plug-in pieces 343, and then two sliding blocks 210 are slid towards each other, so that the two sliding blocks 210 are positioned appropriately on both sides of the through-core current transformer. At the same time, the other end of the lower pressure plate 341 is sleeved with another plug-in piece 343. At this time, the lower pressure plate 341 can prevent the sliding blocks 210 from continuing to move towards each other, and the ratchet protrusion 212 is engaged with the ratchet groove 112 to prevent the sliding blocks 210 from sliding relative to each other. In turn, it can also prevent the sliding blocks 210 from sliding freely on the support bar 110, thereby ensuring the stability of the installation position of the through-core current transformer.

[0069] In embodiment 2, the outer side of the support bar 110 is provided with multiple ratchet grooves 112, and the inside of the sliding groove 211 is fixedly connected with ratchet-shaped protrusions 212. The two are engaged to prevent the sliding block 210 from sliding relative to each other.

[0070] Example 3

[0071] Please see Figure 8 The technical feature that distinguishes this embodiment from embodiment 1 is that the support mechanism 100 is a support bar 110, and the surface of the support bar 110 is provided with a plurality of third threaded holes 113.

[0072] Specifically, by selecting a simple support bar 110 as the support mechanism 100, and then installing the screw 310 of the mounting mechanism 300 with the third threaded hole 113 in a suitable position, and then using the insulating post 330 at the bottom of the mounting mechanism 300 to press down on the busbar, the support bar 110 abuts against the inner wall of the core hole of the through-core current transformer, which can also firmly fix the through-core current transformer on the busbar. This type of fixed installation structure is simpler and has a lower cost, and has a better market prospect.

[0073] In Example 3, the support mechanism 100 is a support bar 110 with multiple third threaded holes 113 on its surface. By selecting appropriate third threaded holes 113 for installation, the through-core current transformer can also be fixedly installed.

[0074] This type of through-core current transformer features a secure and easy-to-operate mounting structure, suitable for different busbar sizes and transformer models, and allows for the reuse of the support frame, making it widely applicable in field operations. Furthermore, the insulation structure effectively prevents current conduction between the through-core transformer and the support frame, further enhancing safety.

[0075] A method for fixing an installation structure includes: abutting a support mechanism 100 against a through-hole current transformer; sliding an installation mechanism 300 on the support mechanism 100 using a sliding component 200 according to different models of through-hole current transformers or busbar specifications, adjusting the distance between the two installation mechanisms 300, and using a limiting mechanism 400 to prevent the sliding component 200 from shifting during installation; after the distance is adjusted, pressing the busbar with the installation mechanism 300, while the support mechanism 100 abuts against the inner wall of the core hole of the through-hole current transformer, thus completing the installation and fixing of the through-hole current transformer.

[0076] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A fixed installation structure for a through-core current transformer, characterized in that, It includes a support mechanism (100), a sliding component (200), a mounting mechanism (300), and a limiting mechanism (400); the support mechanism (100) abuts against the through-core current transformer; The support mechanism (100) includes two support bars (110), the two ends of which are fixed by sleeve caps (120). The sliding assembly (200) includes a sliding block (210), which is slidably connected to the two support bars (110) through two grooves (211). The mounting mechanism (300) includes a screw (310) threadedly connected to the sliding block (210). A rotation adjustment mechanism (320) is fixedly connected to the top of the screw (310), and an insulating column (330) is rotatably connected to the bottom of the screw (310). A pressing mechanism (340) for pressing down the busbar is installed between the two insulating columns (330). A limiting mechanism (400) for sliding limit is also installed between the sliding assembly (200) and the screw (310).

2. The fixed installation structure according to claim 1, characterized in that, Both ends of the support bar (110) are fixedly connected with elastic arc-shaped protrusions (111), and one end of the socket cap (120) has two insertion holes (121).

3. The fixed installation structure according to claim 2, characterized in that, An arc-shaped groove (122) is provided on the inner side of the insertion hole (121), and an elastic piece (123) is fixedly connected to the inner side of the insertion hole (121) on one side of the groove (122). The elastic piece (123) is U-shaped.

4. The fixed installation structure according to claim 1, characterized in that, The sliding block (210) has a first threaded hole (220) adapted to the screw (310) in the middle. The rotation adjustment mechanism (320) includes a hexagonal nut (321) fixedly connected to the top of the screw (310). The top of the hexagonal nut (321) has a hexagonal hole (322) and the top of the hexagonal hole (322) has a cross groove (323).

5. The fixed installation structure according to claim 1, characterized in that, The top of the insulating post (330) is provided with a second threaded hole (331), which is threaded to the bottom of the screw (310).

6. The fixed installation structure according to claim 1, characterized in that, The pressing mechanism (340) includes a pressing plate (341), both ends of which are provided with insertion slots (342), and the middle part of the pressing plate (341) is provided with a hollow slot (344). Both ends of the insertion slots (342) are provided with insertion pieces (343). One end of the insertion piece (343) is connected to the outside of the insulating column (330) through a rotating connection mechanism (350). The pressing plate (341) is made of insulating material.

7. The fixed installation structure according to claim 6, characterized in that, The rotating connection mechanism (350) includes a sleeve (351) fixedly connected to the top of one end of the plug-in piece (343). A ring-shaped groove (352) is provided on the inner side of the sleeve (351). The ring-shaped groove (352) is rotatably connected to a ring-shaped protrusion (353) fixedly connected to the outer side of the insulating post (330).

8. The fixed installation structure according to claim 4, characterized in that, The limiting mechanism (400) includes an annular groove (410) opened on the top of the sliding block (210). The two sides of the annular groove (410) are connected to the inside of the sliding groove (211). A spring (420) is provided inside the annular groove (410) and sleeved on the outside of the screw (310). The top of the spring (420) abuts against the bottom of the hexagonal nut (321).

9. The fixed installation structure according to claim 1, characterized in that, The outer side of the support bar (110) is provided with multiple ratchet grooves (112), and the inside of the slide groove (211) is fixedly connected with a ratchet protrusion (212), which meshes with the ratchet groove (112); the surface of the support mechanism (100) is provided with multiple third threaded holes (113).

10. A method for operating the fixed installation structure according to claim 1, characterized in that, include: The support mechanism (100) is brought into contact with the through-core current transformer; According to the different models of through-core current transformers or busbar specifications, the mounting mechanism (300) is slid on the support mechanism (100) using the sliding assembly (200) to adjust the distance between the two mounting mechanisms (300). During adjustment, the limiting mechanism (400) is used to prevent the sliding assembly (200) from shifting during installation. After the distance is adjusted, the busbar is pressed tightly by the installation mechanism (300), and at the same time the support mechanism (100) abuts against the inner wall of the core hole of the through-core current transformer to complete the installation and fixing of the through-core current transformer.

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