A recloser

Abstract

The application discloses a falling recloser, which comprises a recloser, an inclined insulator and a tripping assembly. The tripping assembly drives a lever to separate from a rotating block through a bimetallic strip or a split coil, so that the insulator falls. A controller integrates a current transformer to take power, and a permanent magnet drives a vacuum tube to open and close. A mode switching assembly controls a micro switch through an outer rocker arm linkage inner rocker arm to switch an automatic reclosing (AUTO) mode or a direct falling (DIR) mode. The application has the functions of double-tripping redundancy, mode switching and high-stability power taking.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a drop recloser. BACKGROUND

[0002] The traditional drop recloser adopts a mechanical tripping structure, and the opening and closing operation depends on manual operation or a single driving mode, which is not flexible. In the prior art, the recloser lacks a quick switching function between automatic opening and closing and manual mode, and it is difficult to achieve precise action in overcurrent protection. In addition, the traditional structure has defects in insulator drop control, tripping stability and power supply mode. The present application solves the above problems by optimizing the tripping assembly, introducing a mode switching mechanism and an intelligent control module. SUMMARY

[0003] The present application aims to provide a drop recloser to solve the above technical problems.

[0004] To achieve the above purpose, the present application provides the following technical scheme:

[0005] A drop recloser, comprising a recloser and an insulator arranged on one side of the recloser, the insulator is arranged obliquely, the two ends of the insulator are respectively provided with an upper contact head and a lower contact head, the upper contact head is in contact or separated from a movable contact head formed on the recloser, the lower contact head is adapted with a tripping assembly, the tripping assembly comprises a bimetallic strip, an opening coil, a tripping plate, a fixed block, an action rod and a rotating block, the rotating block is provided with a lifting ring, the lower contact head is of a bent structure and forms a housing, the two sides of the housing are provided with notches, the side wall of the rotating block forms a mounting column placed in the notches, one end of the action rod is hinged on the tripping plate, the tripping plate is connected with the output end of the opening coil, when closing, the action rod passes through the fixed block and is limited with the rotating block, when opening, the action rod and the rotating block are released from the limit, the rotating block rotates to realize drop, wherein the two sides of the rotating block are provided with support seats, the support seats are located on the outer wall of the recloser and are connected with the rotating block, the two sides of the support seat are provided with short shafts, the rotating block is provided with shaft holes, and the rotating block and the support seat are rotated through the cooperation of the short shafts and the shaft holes.

[0006] The application further provides that the opening is realized by the bimetallic strip or the opening coil driving the action rod and the rotating block to be released from the limiting, when the bimetallic strip is deformed, the action rod is driven to rotate away from the rotating block around the fixed point on the tripping plate, at this time, the rotating block rotates around the center of the shaft hole, thereby driving the setting shell to rotate and then driving the insulator to drop; when the opening coil is powered, the output end of the opening coil drives the action rod to move upwards, at this time, the rotating block rotates around the center of the shaft hole, thereby driving the setting shell to rotate and then driving the insulator to drop, wherein the bottom of the rotating block in the setting shell is formed with an abutting portion, and the setting shell is provided with an abutting block on one side of the slot, when the rotating block rotates, the setting shell is driven to rotate synchronously with the rotating block, so that the insulator drops.

[0007] The application further provides that the recloser comprises a shell, a controller, a current transformer for power taking and sampling, a permanent magnet, a vacuum tube are arranged in the shell, the permanent magnet is arranged at the bottom of the shell, capacitors and batteries are distributed around the permanent magnet, the permanent magnet is connected with the vacuum tube through a connecting rod, the current transformer is sleeved on the vacuum tube, a support is connected to the connecting rod below the vacuum tube, a conductive plate is arranged on the support, the conductive plate is connected with a bimetallic strip, the conductive plate is arranged in an insulating support, and a connecting column is arranged on the insulating support for supporting the current transformer.

[0008] The application further provides that the connecting rod is provided with an upper spring seat and a lower spring seat, and a reset spring is arranged between the upper spring seat and the lower spring seat.

[0009] The application further provides that the vacuum tube and the upper contact head are provided with an action rod, an elastic sheet, a buckling plate and a buckle, one end of the elastic sheet is connected with the upper contact head, an action spring is arranged between the elastic sheet and the upper contact head, the buckling plate is clamped with the buckle, and one end of the buckling plate is connected with the elastic sheet.

[0010] The application further provides that the recloser is provided below with a mode switching assembly, the mode switching assembly is used for switching an AUTO mode and a DIR mode, the AUTO mode is to automatically open after encountering a fault and then close after a period of time, and the DIR mode is to drop after opening.

[0011] The application further provides that the mode switching assembly comprises an outer rocker arm arranged outside the recloser and an inner rocker arm arranged inside the recloser, the outer rocker arm and the inner rocker arm are connected through a linkage shaft, the inner rocker arm is provided with a micro switch, a first fixing column is formed at the bottom of the inner rocker arm, a deforming piece is sleeved on the first fixing column, a second fixing column is arranged on the side wall inside the recloser, the deforming piece comprises a fixing ring sleeved on the first fixing column and the second fixing column, and a stretching ring is arranged between the fixing rings, the stretching ring is stretched or reset when the inner rocker arm rotates, the inner rocker arm is in contact with or disconnected from the micro switch during rotation, so that the AUTO mode and the DIR mode are switched, the micro switch is connected with a controller, and the controller is used for receiving a guide signal of the micro switch.

[0012] The application further provides that the current transformer is used for power taking and sampling, and is used for charging the battery and the capacitor through the controller.

[0013] The application further provides that the elastic sheet is made of copper phosphorus material.

[0014] The application further provides that the shell is an aluminum shell.

[0015] The application has the following beneficial effects: the application comprises a recloser body and an insulator arranged obliquely, and upper and lower contact heads are arranged at the two ends of the insulator. The insulator is composed of a bimetallic sheet, a separation coil, a tripping plate, a fixing block, an action rod and a rotating block. The rotating block is matched with a slot opening of the lower contact head through a mounting column, the action rod is limited by the rotating block during closing, and the limitation is released to make the insulator fall during separation. The outer rocker arm and the inner rocker arm are linked to control the micro switch to trigger the AUTO mode (automatic reclosing) or the DIR mode (direct falling). The separation coil is powered or the bimetallic sheet is deformed by heat to trigger tripping, and the redundancy of fault response is improved.

[0016] The current transformer is integrated in a vacuum tube to supply power for the controller, the battery and the capacitor, and self-sustaining energy management is realized. The reset spring on the connecting rod ensures quick reset after separation, and the vacuum tube cooperates with a permanent magnet to improve the closing stability. The elastic sheet is made of copper phosphorus material to enhance conductivity and elasticity, and the shell is an aluminum shell to reduce weight. The conductive plates are isolated through insulating supports to avoid the risk of electric leakage. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and are used to explain the present application and do not constitute improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a perspective view of the embodiment of the present application.

[0019] Figure 2 It is a structural schematic view of the embodiment of the present application.

[0020] Figure 3 Structure diagram of an embodiment of the application.

[0021] Figure 4 Partial enlarged view of a connecting rod part of an embodiment of the application.

[0022] Figure 5 Partial enlarged view of an inner rocker arm part of an embodiment of the application.

[0023] Reference signs: 10, recloser; 101, housing; 102, controller; 103, current transformer; 104, permanent magnet; 105, vacuum tube; 106, capacitor; 107, battery; 108, support; 109, conductive plate; 110, connecting post; 111, connecting rod; 112, upper spring seat; 113, lower spring seat; 114, action rod; 115, elastic piece; 116, buckling plate; 117, buckle; 20, insulator; 201, upper contact head; 202, lower contact head; 30, tripping assembly; 301, bimetallic strip; 302, opening coil; 303, tripping plate; 304, fixed block; 305, action rod; 306, rotating block; 307, accommodation housing; 308, abutting rod; 309, abutting block; 310, notch; 311, mounting post; 312, support seat; 40, mode switching assembly; 401, outer rocker arm; 402, inner rocker arm; 403, micro switch; 404, linkage shaft; 405, deformation piece; 406, stretching ring; 407, fixed ring; 408, first fixing post; 409, second fixing post; DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail with reference to the drawings and embodiments below, so that the realization process of how the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0025] As Figures 1-5As shown, the application is a kind of falling recloser 10, including recloser 10 and insulator 20 arranged on one side of recloser 10, the insulator 20 is arranged obliquely, the two ends of the insulator 20 are respectively provided with upper contact head 201 and lower contact head 202, the upper contact head 201 is in contact or separated from the moving contact head formed on the recloser 10, the lower contact head 202 is adapted to the tripping assembly 30, the tripping assembly 30 includes bimetallic strip 301, opening coil 302, tripping plate 303, fixed block 304, action rod 305 and rotating block 306, the rotating block 306 is provided with a lifting ring, the lower contact head 202 is a bent structure and is formed with a housing 307, the two sides of the housing 307 are provided with notches 310, the sidewall of the rotating block 306 is formed with a mounting column 311 placed in the notch 310, one end of the action rod 305 is hinged on the tripping plate 303, the tripping plate 303 is connected with the output end of the opening coil 302, when closing, the action rod 305 passes through the fixed block 304 and is limited with the rotating block 306, when opening, the action rod 305 is limited with the rotating block 306, the rotating block 306 rotates to realize falling, wherein the two sides of the rotating block 306 are provided with support seats 312, the support seats 312 are located on the outer wall of the recloser 10 and are connected with the rotating block 306, the two sides of the support seat 312 are provided with short shafts, the rotating block 306 is provided with shaft holes, the rotating block 306 and the support seat 312 realize rotation through the cooperation of the short shafts and the shaft holes.

[0026] In the application, when opening, the bimetallic strip 301 or the opening coil 302 drives the action rod 305 and the rotating block 306 to be limited, when the bimetallic strip 301 is deformed, the action rod 305 is acted on to rotate away from the rotating block 306 around its fixed point on the tripping plate 303, at this time, the rotating block 306 rotates around the center of the shaft hole, thereby driving the housing 307 to rotate and in turn driving the insulator 20 to fall; when the opening coil 302 is powered, the output end of the opening coil 302 drives the action rod 305 to move upward, at this time, the rotating block 306 rotates around the center of the shaft hole, thereby driving the housing 307 to rotate and in turn driving the insulator 20 to fall, wherein the bottom of the rotating block 306 in the housing 307 is formed with an abutting portion, the housing 307 is provided with an abutting block on one side of the notch 310, when the rotating block 306 rotates, the rotating block 306 acts on the housing 307 to rotate synchronously with the rotating block 306, thereby making the insulator 20 fall.

[0027] The recloser 10 comprises an outer shell 101 which is an aluminum shell. Inside the outer shell 101 is arranged a controller 102, a current transformer 103 for power taking and sampling, a permanent magnet 104 arranged at the bottom of the outer shell 101, a capacitor 106 and a battery 107 distributed around the permanent magnet 104, a vacuum tube 105 connected to the permanent magnet 104 through a connecting rod 111, the current transformer 103 sleeved on the vacuum tube 105, a support 108 connected to the connecting rod 111 at a position below the vacuum tube 105, an electrically conductive plate 109 arranged on the support 108, a bimetallic strip 301 connected to the electrically conductive plate 109, and an insulating support in which the electrically conductive plate 109 is arranged, and a connecting column 110 arranged on the insulating support for supporting the current transformer 103.

[0028] The connecting rod 111 is provided with an upper spring seat 112 and a lower spring seat 113, and a reset spring is arranged between the upper spring seat 112 and the lower spring seat 113.

[0029] The vacuum tube 105 and the upper contact head 201 are provided with an action rod 114, a spring piece 115, a buckling plate 116 and a buckle 117. One end of the spring piece 115 is connected to the upper contact head 201, and an action spring is arranged between the spring piece 115 and the upper contact head 201. The buckling plate 116 is clamped with the buckle 117, one end of the buckling plate 116 is connected to the spring piece 115, and the spring piece 115 is made of copper phosphorus material.

[0030] The recloser 10 is provided below with a mode switching assembly 40 for switching between AUTO mode and DIR mode. The AUTO mode is to automatically open after encountering a fault and then close after a period of time, and the DIR mode is to drop after opening.

[0031] The mode switching assembly 40 comprises an outer rocker arm 401 arranged outside the recloser 10, an inner rocker arm 402 arranged inside the recloser 10, the outer rocker arm 401 and the inner rocker arm 402 are connected through a linkage shaft 404, the inner rocker arm 402 is fitted with a micro switch 403, the bottom of the inner rocker arm 402 is formed with a first fixing column, a deforming piece 405 is sleeved on the first fixing column 408, a second fixing column 409 is arranged on the side wall inside the recloser 10, the deforming piece 405 comprises a fixing ring 407 sleeved on the first fixing column and the second fixing column, a stretching ring 406 is arranged between the fixing rings 407, the stretching ring 406 is stretched or reset when the inner rocker arm 402 rotates, the inner rocker arm 402 is in contact with or disconnected from the micro switch 403 during rotation, so as to switch the AUTO mode and the DIR mode, the micro switch 403 is connected with a controller 102, and the controller 102 is used for receiving a conduction signal of the micro switch 403. Through linkage of the outer rocker arm 401 and the inner rocker arm 402, the micro switch 403 is controlled to trigger the AUTO mode (automatic reclosing) or the DIR mode (direct drop). The power-on coil 302 or the bimetallic strip 301 deformed by heat can trigger tripping, thereby improving the redundancy of fault response.

[0032] The application does not set a grounding point, so the current transformer is used for power-on and sampling, and the controller is used for giving power to the battery and charging the capacitor. When the controller drives the permanent magnet to act, the controller drives the opening coil according to different modes, such as drop, and waits for manual reset after closing after drop. In addition, the battery discharging function is actively disconnected after a long time when the power supply cannot be obtained from the power-on current transformer, until the power supply is restored.

[0033] The bimetallic strip tripping part: this part is designed to ensure one-time protection in the case of electrical part failure or just after power-on, battery power-off, etc. After the action, the action rod connected with the vacuum tube needs to be replaced, and the bimetallic strip needs to be reset after heat energy release before it can be used again.

[0034] Some terms are used in the description and claims. Those skilled in the art should understand that the same components may be referred to by different names by hardware manufacturers. The description and claims do not distinguish components by name, but by functional differences. As mentioned throughout the description and claims, "comprising" is an open term, which should be interpreted as "comprising but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problems within a certain error range, and basically achieve the technical effects.

[0035] The foregoing description illustrates and describes several preferred embodiments of the present application, but it is to be understood that the application is not limited to the above-described forms, and that it should not be seen as excluding other embodiments, but rather as being applicable in a variety of other combinations, modifications and environments, and capable of being altered in the scope of the inventive concept described herein, by means of the teachings or knowledge of the relevant art. Any alterations and further modifications of the application, made by those skilled in the art, are to be considered as falling within the scope of the present application as defined in the appended claims.

Claims

1. A drop-out recloser characterized by, The utility model discloses a recloser and the insulator of setting on one side of recloser, the insulator is set obliquely, and the upper contact head and lower contact head are arranged at both ends of the insulator respectively, the upper contact head is contacted or separated with the movable contact head of forming on the recloser, and the lower contact head is adapted to the tripping assembly, and the tripping assembly includes bimetal, opening coil, tripping plate, fixed block, action lever and rotating block, the hanger ring is arranged on the rotating block, the lower contact head is the bending structure and forms the accommodation housing, the both sides of accommodation housing are provided with the notched, and the sidewall of rotating block forms the installation post that places in the notched, one end of action lever is hinged on tripping plate, and the output end of triumping plate is connected with opening coil, when closing, action lever passes through fixed block and is limited with rotating block, when opening, action lever and rotating block remove the limit, and rotating block rotates and realizes the drop, wherein the both sides of rotating block are provided with support seat, and the support seat is located the outer wall of recloser and is connected with rotating block, the both sides of support seat are provided with short shaft, the shaft hole is arranged on rotating block, and rotating block and support seat realize rotation through the cooperation of short shaft and shaft hole.

2. A recloser according to claim 1, characterized in that When opening, the bimetal or opening coil drives the action lever and the rotating block to remove the limit, when the bimetal is deformed, the action lever is acted on, makes the action lever rotate around its fixed point on the tripping plate to the direction away from the rotating block, at this time, the rotating block rotates around the center of its shaft hole, thereby driving the accommodation housing to rotate and in turn driving the insulator to drop;When the opening coil is powered, the output end of the opening coil drives the action lever to move upwards, at this time, the rotating block rotates around the center of its shaft hole, thereby driving the accommodation housing to rotate and in turn driving the insulator to drop, wherein the bottom of the rotating block inside the accommodation housing forms an abutting portion, and the accommodation housing is provided with an abutting block on one side of the notched, when the rotating block rotates, the rotating block acts on the accommodation housing to make it rotate synchronously with the rotating block, thereby causing the insulator to drop.

3. A surge diverter according to claim 2, wherein, The recloser includes a housing, a controller, a current transformer for power acquisition and sampling, a permanent magnet, a vacuum tube are arranged inside the housing, the permanent magnet is arranged at the bottom of the housing, capacitors and batteries are distributed around the permanent magnet, the permanent magnet is connected to the vacuum tube through a connecting rod, the current transformer is sleeved on the vacuum tube, a bracket is connected to the position below the vacuum tube, a conductive plate is arranged on the bracket, the conductive plate is connected to the bimetal, the conductive plate is arranged in an insulating support, and a connecting column is arranged on the insulating support for supporting the current transformer.

4. A surge diverter according to claim 3, wherein, Upper spring seats and lower spring seats are arranged on the connecting rod, and a return spring is arranged between the upper spring seats and the lower spring seats.

5. A recloser according to claim 4, wherein, An action lever, a spring piece, a buckling plate and a buckle are arranged between the vacuum tube and the upper contact head, one end of the spring piece is connected to the upper contact head, an action spring is arranged between the spring piece and the upper contact head, the buckling plate is buckled with the buckle, and one end of the buckling plate is connected to the spring piece.

6. A recloser according to claim 1, wherein, The mode switching assembly is arranged below the recloser, and is used for switching the AUTO mode and the DIR mode, wherein the AUTO mode is to automatically open the circuit after encountering a fault and then close the circuit after a period of time, and the DIR mode is to drop after opening the circuit.

7. A surge diverter according to claim 6, wherein The mode switching assembly comprises an outer rocker arm arranged outside the recloser and an inner rocker arm arranged inside the recloser, the outer rocker arm and the inner rocker arm are connected through a linkage shaft, the inner rocker arm is adapted with a micro switch, a first fixing column is formed at the bottom of the inner rocker arm, a deformation piece is sleeved on the first fixing column, a second fixing column is arranged on the side wall inside the recloser, the deformation piece comprises a fixing ring sleeved on the first fixing column and the second fixing column, a stretching ring is arranged between the fixing rings, the stretching ring is stretched or reset when the inner rocker arm rotates, the inner rocker arm is in contact with or disconnected from the micro switch during the rotation of the inner rocker arm, so as to switch the AUTO mode and the DIR mode, the micro switch is connected with a controller, and the controller is used for receiving a signal transmitted by the micro switch.

8. A surge diverter according to claim 3, wherein, The current transformer is used for power taking and sampling, and charges the battery and the capacitor through the controller.

9. A recloser according to claim 5, wherein, The elastic sheet is made of copper phosphorus material.

10. A recloser according to claim 3, characterized in that The shell is an aluminum shell.

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