Special mutual inductor for high-power power supply system

Abstract

The invention discloses a special mutual inductor for a high-power power supply system, which comprises a box body, a box cover mounted at the upper part of the box body through bolts, heat dissipation holes formed in the front part and the back part of the box body, a supporting plate arranged in the box body, a mounting plate arranged at the upper part of the supporting plate, and a connecting assembly arranged in the box body, the connecting assembly comprises a dismounting and mounting mechanism arranged in the box body, a limiting mechanism is arranged in the box body, a damping mechanism is arranged in the box body, the slope clamping block movably penetrates through the fixed seat and is clamped with the clamping groove, one end of the second spring is fixedly connected with the movable block, and the other end of the second spring is fixedly connected with the movable block. And the outer end of the connecting rod is movably connected with the fixed seat. The device solves the problems that an existing device is inconvenient to manually disassemble a mutual inductor body, so that the mutual inductor body is inconvenient to manually take out from a box body, the mutual inductor body is inconvenient to manually throw for overhauling and maintenance, and the subsequent use of the device is influenced.

Description

Technical Field

[0001] This invention relates to the field of instrument transformer technology, specifically to an instrument transformer for high-power power systems. Background Technology

[0002] The function of a current transformer is to convert a large primary current into a smaller secondary current through a certain transformation ratio for purposes such as protection and measurement. Current transformers are further divided into indoor and outdoor types depending on the usage environment.

[0003] According to patent publication number CN 219163179 U, a waterproof current transformer is disclosed. This device achieves the effect of waterproofing the current transformer body through the design of the box and the top plate. The design of the hollow cylinder, spring and sliding rod makes it easy to put the current transformer body into the box. However, this device is not convenient for manual disassembly of the current transformer body, which makes it inconvenient to manually remove the current transformer body from the box. This makes it inconvenient for manual inspection and maintenance of the current transformer body, thus affecting the subsequent use of the device.

[0004] To address this issue, we propose a dedicated current transformer for high-power power systems. Summary of the Invention

[0005] The purpose of this invention is to provide a dedicated current transformer for high-power power systems to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a current transformer for high-power power systems, comprising a housing; a cover bolted to the upper part of the housing; heat dissipation holes opened at the front and back of the housing; a support plate disposed inside the housing; a mounting plate disposed on the upper part of the support plate; and a connecting component disposed inside the housing; the connecting component includes a disassembly and assembly mechanism disposed inside the housing.

[0007] The disassembly and assembly mechanism includes a fixed base fixedly mounted on the upper part of the mounting plate, an mounting base placed inside the fixed base, a current transformer body fixedly mounted on the upper part of the mounting base, a connecting column movably connected inside the mounting plate, a top ring fixedly connected to the top of the connecting column, a bottom ring fixedly connected to the bottom of the connecting column, a first spring fixedly connected to the upper part of the bottom ring, a slot formed on the side wall of the mounting base, a movable groove formed inside the fixed base, a movable block slidably connected to the inner wall of the movable groove, a sloped locking block fixedly connected to one side of the movable block, a connecting rod fixedly connected to the side of the movable block away from the sloped locking block, a second spring fixedly connected to the inner wall of the movable groove, a pull rod fixedly connected to the outer end of the connecting rod via a limiting block, a through hole formed on the top of the box cover, a first sealing ring fixedly connected to the inner wall of the through hole, and a wiring hole formed on the side wall of the box body, a second sealing ring fixedly connected to the inner wall of the wiring hole.

[0008] According to the above technical solution, a shock-absorbing mechanism is provided inside the box body; the shock-absorbing mechanism includes a slide groove formed at the bottom of the inner wall of the box body, a slide rod fixedly connected to the inner wall of the slide groove, a slider slidably connected to the outer wall of the slide rod, a fifth spring fixedly connected to the inner wall of the slide groove, a support rod movably connected to the upper part of the slider through a pin, a connecting block fixedly connected to the bottom of the support plate, and a damper fixedly installed at the bottom of the support plate.

[0009] According to the above technical solution, the inclined plate block is movably inserted through the fixed base, and the inclined plate block is engaged with the slot. One end of the second spring is fixedly connected to the movable block, and the outer end of the connecting rod is movably connected to the fixed base.

[0010] According to the above technical solution, the top end of the first spring is fixedly connected to the bottom of the mounting plate, and the first spring is sleeved on the outside of the connecting post.

[0011] According to the above technical solution, the top end of the support rod is movably connected to the connecting block via a pin, and one end of the fifth spring is fixedly connected to the slider.

[0012] According to the above technical solution, the bottom end of the damper is fixedly installed to the bottom of the inner wall of the box.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are: (1) The present invention, by providing a disassembly and assembly mechanism, facilitates manual disassembly of the transformer body under the action of the fixed seat, mounting seat, slot, movable slot, movable block, inclined block, connecting rod and second spring, thereby facilitating manual removal of the transformer body from the box, and further facilitating manual inspection and maintenance of the transformer body, and facilitating subsequent use. At the same time, under the action of the first sealing ring, the second sealing ring and the box, the transformer body can achieve a good waterproof effect, thereby increasing the applicability of the device.

[0014] (2) The present invention is provided with a disassembly and assembly mechanism. Under the action of the connecting column, top ring, bottom ring and first spring, when the inclined plate block is separated from the slot, it can press the mounting seat upward, so that the slot and the inclined plate block can be quickly misaligned, which frees up the manual hand and makes it easier for the manual to disassemble the transformer body, thus increasing the applicability of the device.

[0015] (3) The present invention, by setting a shock-absorbing mechanism, under the action of the slide groove, slide rod, slider, fifth spring, support rod, connecting block and damper, can play a shock-absorbing effect when the box is subjected to external force and vibrates, thereby protecting the transformer body, extending the service life of the device and further increasing the applicability of the device. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the disassembly and assembly mechanism of the present invention; Figure 4 This is the invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the limiting mechanism structure of the present invention; Figure 6 This is the invention Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the shock absorption mechanism of the present invention; In the diagram: 1. Box body; 2. Box cover; 3. Connecting assembly; 31. Disassembly and assembly mechanism; 311. Fixing base; 312. Mounting base; 313. Current transformer body; 314. Connecting post; 315. Top ring; 316. Bottom ring; 317. First spring; 318. Slot; 319. Movable slot; 3110. Movable block; 3111. Inclined locking block; 3112. Connecting rod; 3113. Second spring; 3114. First sealing ring; 3115. Second sealing ring; 32. Limiting... Positioning mechanism; 321, fixed column; 322, top block; 323, third spring; 324, limiting ring; 325, fixed rod; 326, rotating rod; 327, limiting rod; 328, handle; 329, fourth spring; 3210, limiting groove; 33, shock absorption mechanism; 331, slide groove; 332, slide rod; 333, slider; 334, fifth spring; 335, support rod; 336, connecting block; 337, damper; 4, heat dissipation hole; 5, support plate; 6, mounting plate. Detailed Implementation

[0017] 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, and 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.

[0018] Example 1: As Figure 1-7As shown, the present invention provides a technical solution: a high-power power supply system dedicated current transformer, including a housing 1, a housing cover 2 bolted to the upper part of the housing 1, heat dissipation holes 4 on the front and back of the housing 1, a support plate 5 disposed inside the housing 1, a mounting plate 6 disposed on the upper part of the support plate 5, and a connecting assembly 3 disposed inside the housing 1. The connecting assembly 3 includes a disassembly and assembly mechanism 31 disposed inside the housing 1, a limit mechanism 32 disposed inside the housing 1, and a shock absorption mechanism 33 disposed inside the housing 1. The disassembly and assembly mechanism 31 includes a fixing seat 311 fixedly mounted on the upper part of the mounting plate 6, a mounting seat 312 placed inside the fixing seat 311, a current transformer body 313 fixedly mounted on the upper part of the mounting seat 312, and a connecting post 314 movably connected inside the mounting plate 6. The top of the connecting post 314 is fixedly connected to... A top ring 315 is connected to the bottom of the connecting post 314, and a bottom ring 316 is fixedly connected to the bottom of the bottom ring 316. A first spring 317 is fixedly connected to the upper part of the bottom ring 316. A slot 318 is opened on the side wall of the mounting base 312. A movable slot 319 is opened inside the fixed base 311. A movable block 3110 is slidably connected to the inner wall of the movable slot 319. A sloped block 3111 is fixedly connected to one side of the movable block 3110. A connecting rod 3112 is fixedly connected to the side of the movable block 3110 away from the sloped block 3111. A second spring 3113 is fixedly connected to the inner wall of the movable slot 319. A pull rod is fixedly connected to the outer end of the connecting rod 3112 through a limiting block. A through hole is opened on the top of the box cover 2, and a first sealing ring 3114 is fixedly connected to the inner wall of the through hole. A wiring hole is opened on the side wall of the box body 1, and a second sealing ring 3115 is fixedly connected to the inner wall of the wiring hole.

[0019] In this embodiment, the inclined plate block 3111 is movably inserted through the fixed base 311, and the inclined plate block 3111 is engaged with the slot 318. One end of the second spring 3113 is fixedly connected to the movable block 3110, and the outer end of the connecting rod 3112 is movably connected to the fixed base 311. Through the cooperation of the fixed base 311, the mounting base 312, the slot 318, the movable slot 319, the movable block 3110, the inclined plate block 3111, the connecting rod 3112, and the second spring 3113, it is convenient for manual disassembly of the current transformer body 313, thereby facilitating manual removal of the current transformer body 313 from the housing 1, and further facilitating manual inspection and maintenance of the current transformer body 313, which is convenient for subsequent use. At the same time, through the cooperation of the first sealing ring 3114, the second sealing ring 3115, and the housing 1, the current transformer body 313 can achieve a good waterproof effect, thereby increasing the applicability of the device.

[0020] Furthermore, the top of the first spring 317 is fixedly connected to the bottom of the mounting plate 6, and the first spring 317 is sleeved on the outside of the connecting post 314. Through the cooperation of the connecting post 314, the top ring 315, the bottom ring 316, and the first spring 317, when the inclined plate block 3111 separates from the slot 318, it can press upward against the mounting base 312, thereby allowing the slot 318 and the inclined plate block 3111 to quickly misalign, freeing up the operator's hands and making it easier for the operator to disassemble the transformer body 313, thus increasing the applicability of the device.

[0021] When it is necessary to disassemble the transformer body 313, firstly, manually open the cover 2, then manually hold the pull rod and pull the connecting rod 3112 outward. This causes the movable block 3110, which is fixedly connected to the inner end of the connecting rod 3112, to move the inclined locking block 3111 outward in sync, allowing the inclined locking block 3111 to separate from the slot 318. Then, under the elastic force of the first spring 317, the connecting column 314 drives the top ring 315 to press upward against the bottom of the mounting base 312, thereby causing the slot 318 on the side wall of the mounting base 312 to misalign with the inclined locking block 3111. Without needing to continuously support the pull rod, the transformer body 313 can then be removed upward. When installing the main body 313 and the mounting base 312, simply place the mounting base 312 into the fixed base 311 manually and press it down. Due to the upper slope of the inclined block 3111, when the mounting base 312 moves down and presses against the inclined block 3111, the inclined block 3111 can be pressed into the movable groove 319. Then, when the mounting base 312 is fully inserted into the fixed base 311, the second spring 3113, under the action of elasticity, can cause the movable block 3110 to drive the inclined block 3111 to engage with the groove 318, thereby fixing the mounting base 312 in the fixed base 311. The installation operation is completed, and the operation is simple and convenient, increasing the applicability of the device.

[0022] Example 2: Based on Example 1, a preferred embodiment of the current transformer for high-power power systems provided by the present invention is as follows: Figure 1-7 As shown: The limiting mechanism 32 includes a fixed column 321 fixedly connected to the upper part of the support plate 5. A top block 322 is fixedly connected to the top of the fixed column 321. A third spring 323 is fixedly connected to the bottom of the top block 322. A limiting ring 324 is fixedly connected to the bottom outer wall of the fixed column 321. A fixed rod 325 is fixedly connected to the upper part of the support plate 5. A rotating rod 326 is rotatably connected to the top of the fixed rod 325 through a bearing. A limiting rod 327 is movably connected to the end of the rotating rod 326. A handle 328 is fixedly connected to the top of the limiting rod 327. A fourth spring 329 is fixedly connected to the bottom of the handle 328. A limiting groove 3210 is opened on the upper part of the mounting plate 6. A through hole is opened on the surface of the mounting plate 6.

[0023] In this embodiment, the bottom end of the third spring 323 is fixedly connected to the upper part of the mounting plate 6, and the mounting plate 6 is slidably connected to the outer wall of the fixing column 321. Through the cooperation of the fixing column 321, the top block 322, the third spring 323, the limiting ring 324, the fixing rod 325, the rotating rod 326, the limiting rod 327, the handle 328, the fourth spring 329, and the limiting groove 3210, when the current transformer body 313 is disassembled or assembled, the mounting plate 6 can be moved upward, thereby raising the current transformer body 313 mounted on the upper part of the mounting plate 6. This makes it easier for manual disassembly and assembly of the current transformer body 313, further increasing the applicability of the device.

[0024] Furthermore, the limiting rod 327 is snapped into the limiting groove 3210, the bottom end of the fourth spring 329 is fixedly connected to the upper part of the rotating rod 326, and the bottom of the rotating rod 326 is fitted against the upper part of the mounting plate 6.

[0025] When it is necessary to disassemble or assemble the current transformer body 313, manually grasp the handle 328 and pull the limiting rod 327 upward to separate the limiting rod 327 from the limiting groove 3210. Then rotate the rotating rod 326 to an angle that allows it to pass through the through hole. Subsequently, under the action of the third spring 323, the mounting plate 6 can slide upward through the fixing post 321, thereby raising the current transformer body 313. This makes it easier for manual disassembly and assembly of the current transformer body 313. After installation, manually press the mounting plate 6 downward to stop the movement. Under the action of ring 324, the bottom of mounting plate 6 can be limited. When mounting plate 6 moves downward, rotating rod 326 can pass through the through hole. Then, by manually rotating rotating rod 326, it can be limited again to the upper part of mounting plate 6, and limiting rod 327 can be engaged with limiting groove 3210. Under the action of elastic force of fourth spring 329, limiting rod 327 can be engaged with limiting groove 3210, thereby limiting rotating rod 326 and fixing mounting plate 6. The current transformer body 313 can be restored in box 1 for easy subsequent use.

[0026] Example 3: Based on Example 1, a preferred embodiment of the current transformer for high-power power systems provided by the present invention is as follows: Figure 1-7 As shown: The shock absorption mechanism 33 includes a groove 331 formed at the bottom of the inner wall of the box 1. A slide rod 332 is fixedly connected to the inner wall of the groove 331. A slider 333 is slidably connected to the outer wall of the slide rod 332. A fifth spring 334 is fixedly connected to the inner wall of the groove 331. A support rod 335 is movably connected to the upper part of the slider 333 via a pin. A connecting block 336 is fixedly connected to the bottom of the support plate 5. A damper 337 is fixedly installed at the bottom of the support plate 5.

[0027] In this embodiment, the top end of the support rod 335 is movably connected to the connecting block 336 via a pin, and one end of the fifth spring 334 is fixedly connected to the slider 333. Through the cooperation of the slide groove 331, slide rod 332, slider 333, fifth spring 334, support rod 335, connecting block 336, and damper 337, when the housing 1 is subjected to external force and vibrates, it can play a shock absorption role, thereby protecting the transformer body 313, extending the service life of the device, and further increasing the applicability of the device.

[0028] Furthermore, the bottom end of the damper 337 is fixedly installed to the bottom of the inner wall of the housing 1.

[0029] When the housing 1 is subjected to external force and vibrates, the support plate 5 and the housing 1 can move relative to each other under the action of gravity. Since the support rod 335 is movably connected between the connecting block 336 and the slider 333 through a pin, when the support plate 5 and the housing 1 move relative to each other, the slider 333 can slide relative to each other in the slide groove 331 through the slide rod 332. This causes the fifth spring 334 to deform. Since the damper 337 is fixedly installed between the support plate 5 and the housing 1, the fifth spring 334 and the damper 337 work together to achieve a shock absorption effect, thereby protecting the transformer body 313 and further increasing the applicability of the device.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-power power supply system dedicated current transformer, including a housing (1); The cover (2) is bolted to the upper part of the box body (1); Heat dissipation holes (4) are opened on the front and back of the box body (1). A support plate (5) is set inside the box (1); Mounting plate (6) is set on the upper part of the support plate (5); And a connecting component (3) disposed inside the housing (1), characterized in that: The connecting component (3) includes a disassembly and assembly mechanism (31) disposed inside the housing (1), a limit mechanism (32) disposed inside the housing (1), and a shock absorption mechanism (33) disposed inside the housing (1). The disassembly and assembly mechanism (31) includes a fixed seat (311) fixedly installed on the upper part of the mounting plate (6), a mounting seat (312) placed inside the fixed seat (311), a current transformer body (313) fixedly installed on the upper part of the mounting seat (312), a connecting column (314) movably connected inside the mounting plate (6), a top ring (315) fixedly connected to the top of the connecting column (314), a bottom ring (316) fixedly connected to the bottom of the connecting column (314), a first spring (317) fixedly connected to the upper part of the bottom ring (316), a slot (318) opened on the side wall of the mounting seat (312), and a movable groove (318) opened inside the fixed seat (311). 19), the inner wall of the movable groove (319) is slidably connected to a movable block (3110), a sloped block (3111) is fixedly connected to one side of the movable block (3110), a connecting rod (3112) is fixedly connected to the side of the movable block (3110) away from the sloped block (3111), a second spring (3113) is fixedly connected to the inner wall of the movable groove (319), a pull rod is fixedly connected to the outer end of the connecting rod (3112) through a limiting block, a through hole is opened at the top of the box cover (2), and a first sealing ring (3114) is fixedly connected to the inner wall of the through hole, a wiring hole is opened on the side wall of the box body (1), and a second sealing ring (3115) is fixedly connected to the inner wall of the wiring hole. The limiting mechanism (32) includes a fixed column (321) fixedly connected to the upper part of the support plate (5), a top block (322) fixedly connected to the top of the fixed column (321), a third spring (323) fixedly connected to the bottom of the top block (322), a limiting ring (324) fixedly connected to the bottom outer wall of the fixed column (321), a fixed rod (325) fixedly connected to the upper part of the support plate (5), a rotating rod (326) rotatably connected to the top of the fixed rod (325) through a bearing, a limiting rod (327) movably connected to the end of the rotating rod (326), a handle (328) fixedly connected to the top of the limiting rod (327), a fourth spring (329) fixedly connected to the bottom of the handle (328), a limiting groove (3210) opened on the upper part of the mounting plate (6), and a through hole opened on the surface of the mounting plate (6). The bottom end of the third spring (323) is fixedly connected to the upper part of the mounting plate (6), and the mounting plate (6) is slidably connected to the outer wall of the fixed column (321); The limiting rod (327) is engaged with the limiting groove (3210), the bottom end of the fourth spring (329) is fixedly connected to the upper part of the rotating rod (326), and the bottom of the rotating rod (326) is attached to the upper part of the mounting plate (6).

2. The current transformer for high-power power systems according to claim 1, characterized in that: The inclined plate (3111) is movably inserted through the fixed base (311), and the inclined plate (3111) is engaged with the slot (318). One end of the second spring (3113) is fixedly connected to the movable block (3110), and the outer end of the connecting rod (3112) is movably connected to the fixed base (311).

3. The current transformer for high-power power systems according to claim 2, characterized in that: The top end of the first spring (317) is fixedly connected to the bottom of the mounting plate (6), and the first spring (317) is sleeved on the outside of the connecting post (314).

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