Fixed mounting structure and method of core-through current transformer

Abstract

The invention provides a fixed installation structure and method of a core-through current transformer, and belongs to the technical field of electrical equipment installation. The structure comprises the supporting mechanism, the sliding assembly, the mounting mechanism and the limiting mechanism, through cooperation of all the mechanisms, the mounting process of the core penetrating type current transformer is simplified, and the mounting efficiency and universality are improved. The supporting mechanism improves the stability, and the sliding assembly and the installation mechanism can be adjusted according to different busbar sizes and transformer models. And the connection stability between the mounting mechanism and the busbar is improved by the limiting mechanism. All the components of the structure are reasonable in design, compact in structure, small in occupied space and particularly suitable for a narrow installation space in a switch cabinet, the problem that construction in the narrow space is inconvenient in a traditional screw fixing mode is solved, the manufacturing cost is low, and good market prospects are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of power equipment installation, and in particular relates to a fixed installation structure and method of a core-through current transformer. Background Art

[0002] The current transformer is the most common power component in the current power system. Its main function is to convert the large current on the primary side into a small current of 5A or 1A available on the secondary side. As the State Grid requires the intelligentization and miniaturization of power equipment, major switch cabinet manufacturers have also carried out miniaturization optimization and transformation of their switch cabinets. Therefore, there are certain requirements for the volume of the corresponding components in the switch cabinet. The through-core current transformer has the advantage of small size compared to the ordinary cast type, so major manufacturers have begun to use through-core current transformers.

[0003] However, the existing through-core current transformers are generally installed by screws, and each transformer needs to be fixed with 4 M8 screws. The screws need to be tightened or unscrewed for installation or removal, and special tools are required due to the small space. Secondly, the installation space of the switch cabinet is generally small, and the construction operation is very inconvenient, which makes the installation and subsequent maintenance and repair very troublesome. At the same time, the installation construction time of the transformer is relatively long. In order to effectively avoid the risks caused by the transformer not being firmly fixed and shorten the construction time, the work efficiency is greatly improved. Summary of the invention

[0004] In view of the defects of the above-mentioned prior art, a fixed installation structure and method of a through-core current transformer are provided to change the existing fixed installation method of the through-core current transformer. The fixed installation method has a good fixing effect, is easy to operate and has high installation efficiency. At the same time, the research and development of the transformer bracket has wide practicality and economy.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: The invention provides a fixed installation structure of a through-core current transformer, comprising a supporting mechanism abutting against the through-core current transformer, a sliding component, a mounting mechanism and a limiting mechanism.

[0006] Among them, the supporting mechanism includes two supporting bars, the two ends of the two supporting bars are fixed by socket caps, the sliding assembly includes a sliding block, and the sliding block is slidably socketed with the two supporting bars through two sliding grooves, the mounting mechanism includes a screw threadedly connected to the sliding block, the top of the screw is fixedly connected with a rotation adjustment mechanism, the bottom of the screw is rotatably connected with an insulating column, a pressing mechanism for pressing down the busbar is installed between the two insulating columns, and a limiting mechanism for sliding limiting is also installed between the sliding assembly and the screw.

[0007] In one embodiment of the present invention, elastic arc-shaped protrusions are fixedly connected to the outer sides of both ends of the support bar, and two plug holes are provided at one end of the sleeve cap.

[0008] In one embodiment of the present invention, an arc-shaped groove is provided on the inner side of the plug hole, and an elastic sheet fixedly connected to the inner side of the plug hole is provided on one side of the groove, and the elastic sheet is U-shaped.

[0009] In one embodiment of the present invention, a first threaded hole adapted to the screw is provided in the middle of the sliding block, and the rotation adjustment mechanism includes a hexagonal nut fixedly connected to the top of the screw, a hexagonal hole is provided on the top of the hexagonal nut, and a cross slot is provided on the top of the hexagonal hole.

[0010] In one embodiment of the present invention, a second threaded hole is formed on the top of the insulating column, and the second threaded hole is threadedly connected to the bottom of the screw rod.

[0011] In one embodiment of the present invention, the pressing mechanism includes a pressing plate, both ends of the pressing plate are provided with plug-in grooves, the middle part of the pressing plate is provided with a hollow groove, both ends of the plug-in groove are interspersed with plug-in pieces, one end of the plug-in piece is connected to the outer side of the insulating column through a rotating connection mechanism, and the pressing plate is made of insulating material.

[0012] In one embodiment of the present invention, the rotating connection mechanism includes a socket tube fixedly connected to the top of one end of the plug-in piece, and a ring-shaped groove is opened on the inner side of the socket tube, and the ring-shaped groove is rotatably sleeved with a ring-shaped protrusion fixedly connected to the outer side of the insulating column.

[0013] In one embodiment of the present invention, the limiting mechanism includes an annular groove opened on the top of the sliding block, both sides of the annular groove are connected to the interior of the sliding groove, a spring is provided inside the annular groove and is sleeved on the outside of the screw rod, and the top of the spring abuts against the bottom of the hexagonal nut.

[0014] In one embodiment of the present invention, a plurality of ratchet grooves are provided on the outer side of the support bar, a ratchet-shaped protrusion is fixedly connected to the inside of the slide groove, and the ratchet-shaped protrusion is meshedly connected with the ratchet groove.

[0015] In one embodiment of the present invention, the supporting mechanism is a supporting bar, and a plurality of third threaded holes are formed on the surface of the supporting bar.

[0016] A working method of the fixed installation structure comprises: Abutting the supporting mechanism against the core-through current transformer; According to different models of through-core current transformers or busbar specifications, the installation mechanism is slid on the support mechanism using a sliding assembly to adjust the distance between the two installation mechanisms. During the adjustment, a limit mechanism is used to prevent the sliding assembly from shifting during the installation process. After the distance is adjusted, the busbar is pressed tightly with the installation mechanism, and at the same time, the support mechanism is abutted against the inner wall of the core hole of the through-core current transformer to complete the installation and fixation of the through-core current transformer.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1) The present invention makes the installation process of the through-core current transformer simpler and faster through the cooperation of the support mechanism, the sliding assembly, the installation mechanism and the limiting mechanism. The design of the support bar and the sliding block enables the equipment to slide and position conveniently in a small space, greatly improving the installation efficiency. At the same time, it can also adapt to the installation of different through-core current transformers, and has good versatility. The arc-shaped protrusion of the support bar and the elastic sheet design of the socket cap ensure the stability of the support mechanism after assembly, so that personnel can select a support bar of appropriate length according to the fixed installation needs of the through-core current transformer. The threaded connection of the sliding block and the screw, as well as the pressing mechanism, enable the transformer to be firmly fixed on the busbar after installation and abut against the through-core current transformer. While ensuring that the through-core current transformer can be quickly installed, it can also ensure that it is not easily loosened, thereby improving the reliability of equipment operation; 2) The support mechanism, sliding assembly 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 rod to move downward, the set limit mechanism compresses the rear spring to press the support bar to prevent the sliding block from sliding by itself, thereby increasing the connection stability between the installation mechanism and the busbar; 3) The engagement of the ratchet groove and the ratchet-shaped protrusion enables the sliding block to slide towards each other in one direction on the support bar only. With the support of the pressing mechanism, the sliding block can also be locked at the upper limit position on the support bar, further meeting the installation requirements of through-core current transformers of different specifications, and also improving the connection stability between the installation mechanism and the busbar; 4) By using insulating nuts, insulating columns, lower pressure plates and other components made of insulating materials, the current conduction between the core transformer and the bracket is effectively avoided, the electrical safety of the system is enhanced, and the safety of equipment and personnel is guaranteed. The hexagonal nut design on the top of the screw can be operated with conventional tools or adjusted with a cross screwdriver through the cross slot, which makes it convenient for construction personnel to choose appropriate tools according to the site conditions and simplifies the installation process; 5) The components of the present invention are reasonably designed, compact in structure, and occupy little space. They are particularly suitable for narrow installation spaces in switch cabinets, effectively solving the problem of inconvenience in construction in narrow spaces caused by traditional screw fixing methods. In addition, the cost is relatively low, and the present invention has good market prospects in the field of transformer installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 A structural schematic diagram of a fixed installation structure of a through-core current transformer provided in an embodiment of the present invention; Figure 2 One of the structural schematic diagrams of a fixed installation structure of a through-core current transformer provided in an embodiment of the present invention; Figure 3 A schematic diagram of the disassembly of the installation mechanism and the limiting mechanism of the fixed installation structure of a through-core current transformer provided in an embodiment of the present invention; Figure 4 A schematic diagram of a sliding assembly structure of a fixed installation structure of a through-core current transformer provided in an embodiment of the present invention; Figure 5 A schematic cross-sectional structure diagram of a sleeve cap of a fixed installation structure of a through-core current transformer provided in an embodiment of the present invention; Figure 6 A structural schematic diagram of Example 2 of a fixed installation structure of a through-core current transformer provided in an embodiment of the present invention; Figure 7 A schematic diagram of a sliding block structure of Example 2 of a fixed installation structure of a through-core current transformer provided in an embodiment of the present invention; Figure 8 A structural schematic diagram of Example 3 of a fixed installation structure of a through-core current transformer provided in an embodiment of the present invention.

[0019] Icons: 100, support mechanism; 110, support bar; 111, arc-shaped protrusion; 112, ratchet groove; 113, third threaded hole; 120, socket cap; 121, plug hole; 122, groove; 123, elastic sheet; 200, sliding assembly; 210, sliding block; 211, slide groove; 212, ratchet protrusion; 220, first threaded hole; 300, mounting mechanism; 310, screw rod; 320, rotation adjustment Mechanism; 321, hexagonal nut; 322, hexagonal hole; 323, cross slot; 330, insulating column; 331, second threaded hole; 340, pressing mechanism; 341, pressing plate; 342, plug-in slot; 343, plug-in sheet; 344, hollow slot; 350, rotating connection mechanism; 351, socket; 352, ring-shaped slot; 353, ring-shaped protrusion; 400, limiting mechanism; 410, annular groove; 420, spring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] Example 1 See also Figure 1-6 A fixed installation structure of a through-core current transformer comprises a support mechanism 100 abutting against the through-core current transformer, a sliding assembly 200, an installation mechanism 300 and a limiting mechanism 400, wherein the support mechanism 100 comprises two support bars 110, both ends of the two support bars 110 are sleeved and fixed by sleeve caps 120, the sliding assembly 200 comprises a sliding block 210, the sliding block 210 is slidably sleeved with the two support bars 110 through two sliding grooves 211, the installation mechanism 300 comprises a screw rod 310 threadedly connected to the sliding block 210, a rotation adjustment mechanism 320 is fixedly connected to the top of the screw rod 310, an insulating column 330 is rotatably connected to the bottom of the screw rod 310, and a pressing mechanism 340 for pressing down a busbar is installed between the two insulating columns 330; a limiting mechanism 400 for sliding limiting is also installed between the sliding assembly 200 and the screw rod 310.

[0028] Specifically, the support mechanism 100 is used to abut against the through-core current transformer, wherein the support mechanism 100 includes two support bars 110, and the two ends of the two support bars 110 are sleeved and fixed by sleeve caps 120. The user can select the support bar 110 of a suitable length according to the specific model of the through-core current transformer or the specifications of the busbar, and then the sliding block 210 of the sliding assembly 200 is provided with a sliding groove 211, which can enable the mounting structure to be quickly installed on the support bar 110, and can also be adjusted according to the specific model of the through-core current transformer or the specifications of the busbar. The distance between the two installation mechanisms 300 can be flexibly adjusted. The rotation adjustment mechanism 320 provided in the installation mechanism 300 can drive the screw 310 to rotate while realizing the degree of compression of the insulating column 330 and the pressing mechanism 340 on the busbar, and at the same time, the support bar 110 of the support mechanism 100 is in contact with the inner wall of the core hole of the through-core current transformer, so that the installation and fixation of the through-core current transformer can be quickly completed, and the limit mechanism 400 provided can be used for the limit of the sliding assembly 200, effectively preventing the through-core current transformer from shifting during the installation process. Therefore, the fixed installation structure can realize the fast, stable and convenient installation of the through-core current transformer through the provision of the support mechanism 100, the sliding assembly 200, the installation mechanism 300 and the limit mechanism 400.

[0029] In this embodiment: elastic arc-shaped protrusions 111 are fixedly connected to the outer sides of both ends of the support bar 110, two plug-in holes 121 are provided at one end of the socket cap 120, and an arc-shaped groove 122 is provided on the inner side of the plug-in hole 121. An elastic sheet 123 fixedly connected to the inner side of the plug-in hole 121 is provided on one side of the groove 122, and the elastic sheet 123 is U-shaped.

[0030] Specifically, after the two support bars 110 are inserted into the plug holes 121 of the socket cap 120, the installation of the two support bars 110 and the socket cap 120 can be quickly completed, and the elastic arc-shaped protrusion 111 cooperates with the arc-shaped groove 122 to effectively prevent the socket cap 120 from detaching from the ends of the two support bars 110. The elastic sheet 123 can further block the arc-shaped protrusion 111 after recovery, further preventing the socket cap 120 from detaching from the support bar 110, thereby improving the stability of the connection.

[0031] The two support bars 110 and the socket caps 120 are plugged and limited, so that the fixed installation structure can be packaged after each component is disassembled, and can also be quickly and flexibly assembled and selected at the construction site.

[0032] In this embodiment, a first threaded hole 220 adapted to the screw rod 310 is opened in the middle of the sliding block 210, and the rotation adjustment mechanism 320 includes a hexagonal nut 321 fixedly connected to the top of the screw rod 310, and a hexagonal hole 322 is opened at the top of the hexagonal nut 321, and a cross groove 323 is opened at the top of the hexagonal hole 322.

[0033] Specifically, the first threaded hole 220 can be used for the screw rod 310 to pass through and connect, and the hexagonal nut 321 can be used to rotate the hexagonal nut 321 by a wrench, and the hexagonal hole 322 can be used to rotate the hexagonal nut 321 with a hexagonal wrench, and the cross slot 323 can be used to rotate the hexagonal nut 321 with a screwdriver. The various ways of rotating the hexagonal nut 321 make it convenient for personnel to choose suitable tools at the construction site, which is particularly suitable for the narrow installation space in the switch cabinet, and effectively solves the problem of the inconvenience of construction in a narrow space with the traditional screw fixing method, and when the hexagonal nut 321 is rotated, the screw rod 310 can also rotate with it.

[0034] In this embodiment, a second threaded hole 331 is formed at the top of the insulating column 330 , and the second threaded hole 331 is threadedly connected to the bottom of the screw rod 310 .

[0035] Specifically, the insulating column 330 can be installed through the second threaded hole 331 and the bottom of the screw 310, which is also convenient for personnel to select the insulating column 330 of appropriate size according to the specifications of the busbar. The design of the insulating column 330 can also prevent current from being conducted between the core transformer and the support mechanism 100, thereby ensuring the safety of equipment and personnel.

[0036] In this embodiment, the pressing mechanism 340 includes a pressing plate 341, both ends of which are provided with plug-in grooves 342, a hollow groove 344 is provided in the middle of the pressing plate 341, both ends of the plug-in grooves 342 are inserted with plug-in pieces 343, one end of the plug-in piece 343 is connected to the outer side of the insulating column 330 through a rotating connecting mechanism 350, and the pressing plate 341 is made of insulating material.

[0037] Specifically, when fixing the busbar, a lower pressure plate 341 of appropriate length and width can be selected and pre-sleeved on the outside of the plug-in piece 343, and then as the screw 310 moves downward, the lower pressure plate 341 also presses down on the busbar, and then cooperates with the support mechanism 100 to abut against the inner wall of the core hole of the through-core current transformer, so that the through-core current transformer can be firmly fixed on the busbar.

[0038] In this embodiment, the rotation 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 formed on the inner side of the sleeve 351. The ring-shaped groove 352 is rotationally sleeved with a ring-shaped protrusion 353 fixedly connected to the outer side of the insulating column 330.

[0039] Specifically, the relative position between the lower pressure plate 341 and the insulating column 330 can be adjusted by setting the socket 351, so that the angle of the plug-in piece 343 can be flexibly changed to ensure that the lower pressure plate 341 can be stably socketed with the plug-in piece 343, and the ring-shaped protrusion 353 and the ring-shaped groove 352 are matched to ensure that the socket 351 can rotate stably while preventing the socket 351 from falling off.

[0040] In this embodiment, the limiting mechanism 400 includes an annular groove 410 opened at the top of the sliding block 210, and the two sides of the annular groove 410 are connected to the interior of the sliding groove 211. The annular groove 410 is provided with a spring 420 that is sleeved on the outside of the screw rod 310, and the top of the spring 420 abuts against the bottom of the hexagonal nut 321.

[0041] Specifically, when the hexagonal nut 321 drives the screw rod 310 to move downward, the hexagonal nut 321 presses down the spring 420 so that it can pass through the annular groove 410 to apply force to the support bar 110, thereby 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.

[0042] Optionally, the fixed installation structure of the through-core current transformer is mainly composed of a support mechanism 100, a sliding assembly 200, a mounting mechanism 300 and a limiting mechanism 400. The support mechanism 100 is used to abut against the through-core current transformer, and the sliding assembly 200 enables the mounting mechanism 300 to slide on the support mechanism 100, thereby adjusting the distance between the two mounting mechanisms 300 to adapt to different types of through-core current transformers or busbar specifications. The mounting mechanism 300 achieves compression of the busbar through a screw 310, an insulating column 330 and a pressing mechanism 340, while the support bar 110 of the support mechanism 100 abuts against the inner wall of the core hole of the through-core current transformer to complete the installation and fixation of the through-core current transformer. The limiting mechanism 400 is used to prevent the sliding assembly 200 from shifting during the installation process.

[0043] Optionally, according to the specific model of the through-core current transformer or the specification of the busbar, a support bar 110 of appropriate length is selected. The two ends of the two support bars 110 are fixed by sleeve caps 120. One end of the sleeve cap 120 is provided with two plug holes 121, and the inner side of the plug holes 121 is provided with arc-shaped grooves 122, which cooperate with the elastic arc-shaped protrusions 111 at both ends of the support bar 110 to prevent the sleeve cap 120 from falling off. At the same time, an elastic sheet 123 is also provided on the inner side of the plug hole 121 to further increase the stability of the connection.

[0044] Optionally, the sliding block 210 is slidably connected to the two support bars 110 through the two sliding grooves 211. As required, the distance between the two sliding blocks 210 is adjusted to adapt to the specific model of the through-core current transformer or the specification of the busbar.

[0045] Optionally, the screw rod 310 is passed through the first threaded hole 220 in the middle of the sliding block 210 and is threadedly connected to the sliding block 210. The top of the screw rod 310 is fixedly connected with a rotation adjustment mechanism 320, including a hexagonal nut 321, a hexagonal hole 322 and a cross slot 323, so that personnel can use different tools to rotate. The bottom of the screw rod 310 is rotated with an insulating column 330, and the insulating column 330 is threadedly connected to the bottom of the screw rod 310 through a second threaded hole 331. The pressing mechanism 340 (including the pressing plate 341, the plug-in sheet 343, etc.) is installed on the insulating column 330, and the busbar is prepared to be pressed down and fixed.

[0046] Optionally, an annular groove 410 is provided at the top of the sliding block 210, and a spring 420 is disposed inside the annular groove 410, and the top of the spring 420 abuts against the bottom of the hexagonal nut 321. When the hexagonal nut 321 drives the screw rod 310 to move downward, the spring 420 is compressed and passes through the annular groove 410 to apply force to the support bar 110, thereby preventing the sliding block 210 from sliding by itself.

[0047] Optionally, the through-core current transformer is placed on the support mechanism 100 so that the inner wall of its core hole abuts against the support bar 110. The busbar is placed below the through-core current transformer and is 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.

[0048] Example 2 See also Figure 6-7 The technical feature that distinguishes this embodiment from the first embodiment is that a plurality of ratchet grooves 112 are provided on the outer side of the support bar 110 , a ratchet-shaped protrusion 212 is fixedly connected to the inside of the slide groove 211 , and the ratchet-shaped protrusion 212 is meshedly connected with the ratchet groove 112 .

[0049] Specifically, first, one end of the lower pressure plate 341 is socketed with one of the plug-in sheets 343, and then the two sliding blocks 210 are slid toward each other so that the two sliding blocks 210 are appropriately located on both sides of the through-core current transformer. At the same time, the other end of the lower pressure plate 341 is socketed with the other plug-in sheet 343. At this time, the lower pressure plate 341 can prevent the sliding blocks 210 from continuing to move toward each other, and the ratchet-shaped protrusion 212 is engaged with the ratchet groove 112, which can prevent the sliding blocks 210 from sliding relative to each other, and then 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.

[0050] In Embodiment 2, a plurality of ratchet grooves 112 are formed on the outer side of the support bar 110 , and a ratchet-shaped protrusion 212 is fixedly connected inside the slide groove 211 , and the two are meshedly connected to prevent the sliding block 210 from sliding relative to each other.

[0051] Example 3 See also Figure 8 The technical feature of this embodiment that distinguishes it from the first embodiment is that the support mechanism 100 is a support bar 110 , and a plurality of third threaded holes 113 are formed on the surface of the support bar 110 .

[0052] Specifically, by selecting a simple support bar 110 as the support mechanism 100, and then installing the screw 310 of the installation mechanism 300 with the third threaded hole 113 at a suitable position, and then using the insulating column 330 at the bottom of the installation mechanism 300 to press down the busbar, the support bar 110 abuts against the inner wall of the core hole of the through-core current transformer, and the through-core current transformer can also be firmly fixed on the busbar. This type of fixed installation structure is simpler in structure, has a lower cost, and has a better market prospect.

[0053] In Embodiment 3, the support mechanism 100 is a support bar 110, and a plurality of third threaded holes 113 are formed on the surface of the support bar 110. By selecting appropriate third threaded holes 113 for installation, the fixed installation of the through-core current transformer can also be achieved.

[0054] The fixed installation structure of this through-core current transformer is firm and easy to operate. It can be applied to different busbar sizes and transformer models, and the bracket can be reused, which can be widely used in field operations. At the same time, the insulation structure can effectively avoid the current conduction between the through-core transformer and the bracket, further enhancing safety.

[0055] A working method for fixing an installation structure comprises: abutting a support mechanism 100 against a through-core current transformer; sliding a mounting mechanism 300 on the support mechanism 100 using a sliding assembly 200 according to different models of through-core current transformers or busbar specifications, adjusting the distance between the two mounting mechanisms 300, and using a limiting mechanism 400 to prevent the sliding assembly 200 from shifting during the installation process; after the distance is adjusted, pressing the busbar with the mounting mechanism 300, and at the same time abutting the support mechanism 100 against the inner wall of the core hole of the through-core current transformer, thereby completing the installation and fixation of the through-core current transformer.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

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

2. The fixed installation structure according to claim 1, characterized in that: Elastic arc-shaped protrusions (111) are fixedly connected to the outer sides of both ends of the support bar (110), and two plug holes (121) are provided at one end of the sleeve cap (120).

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 plug hole (121), and an elastic sheet (123) fixedly connected to the inner side of the plug hole (121) is provided on one side of the groove (122), and the elastic sheet (123) is U-shaped.

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

5. The fixed installation structure according to claim 1, characterized in that: A second threaded hole (331) is formed at the top of the insulating column (330), and the second threaded hole (331) is threadedly connected to the bottom of the screw rod (310).

6. The fixed installation structure according to claim 1, characterized in that: The pressing mechanism (340) comprises a pressing plate (341), both ends of which are provided with plug-in grooves (342), a middle portion of which is provided with a hollow groove (344), both ends of which are provided with plug-in sheets (343), one end of which is connected to the outer side of the insulating column (330) via a rotating connection mechanism (350), and the pressing plate (341) is made of insulating material.

7. The fixed installation structure according to claim 1, characterized in that: The rotating connection mechanism (350) comprises 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), and the ring-shaped groove (352) is rotatably sleeved with a ring-shaped protrusion (353) fixedly connected to the outer side of the insulating column (330).

8. The fixed installation structure according to claim 1, characterized in that: The limiting mechanism (400) comprises an annular groove (410) formed on the top of the sliding block (210), the two sides of the annular groove (410) being connected to the inside of the sliding groove (211), the inside of the annular groove (410) being provided with a spring (420) sleeved on the outside of the screw rod (310), the top of the spring (420) being in contact with the bottom of the hexagonal nut (321).

9. The fixed installation structure according to claim 1, characterized in that: A plurality of ratchet grooves (112) are provided on the outer side of the support bar (110), a ratchet-shaped protrusion (212) is fixedly connected to the interior of the slide groove (211), and the ratchet-shaped protrusion (212) is meshedly connected to the ratchet groove (112); and a plurality of third threaded holes (113) are provided on the surface of the support mechanism (100).

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

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