Bistable recloser

Abstract

The utility model belongs to the technical field of high-voltage power equipment, and particularly relates to a bistable recloser, which comprises a welding base assembly, reclosers, a bistable operating mechanism and a locking mechanism, the welding base assembly is connected with a plurality of reclosers, the bistable operating mechanism is arranged in the welding base assembly, and the locking mechanism is connected with the reclosers. The bistable operating mechanism is movably connected with the reclosers, and a locking mechanism is arranged at the tail end of the bistable operating mechanism and fixedly mounted on the welding base assembly. When in use, through collinear transmission of the driving pull rod and the movable iron core driving shaft, the transmission loss is reduced, manual opening is realized by using the locking structure, maintenance by a worker is facilitated, double-layer locking is performed on the recloser, and product safety accidents caused by misoperation of the worker are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of high-voltage power equipment technology, specifically, it relates to a bistable recloser. Background Technology

[0002] With the expansion of power system scale and the improvement of intelligence level, the demand for reliability and automation in distribution networks is increasing. Traditional circuit breakers and reclosing devices require manual intervention or rely on fixed action logic in fault handling, making them difficult to adapt to the complex and ever-changing power grid operating environment. In particular, the integration of new power elements such as distributed energy resources and microgrids has placed higher demands on fault isolation and power restoration speed, driving the development of intelligent protection devices such as bistable reclosers.

[0003] In traditional reclosers, the drive shaft of the moving iron core and the drive rod have an axial deflection angle of 15-20°, requiring a transition plate to transmit torque. This results in non-collinear transmission losses, increasing energy loss. Furthermore, the recloser lacks mechanical interlocking, increasing the danger for operators. This defect also directly leads to a 30% reduction in equipment lifespan and an increase in maintenance costs of over 55%, becoming a key bottleneck restricting the upgrading of distribution network automation. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a bistable recloser.

[0005] According to the present invention, a bistable recloser includes a welding base assembly, a recloser, a bistable operating mechanism, and a locking mechanism. Multiple reclosers are connected to the welding base assembly, and a bistable operating mechanism is provided inside the welding base assembly. The bistable operating mechanism is movably connected to the multiple reclosers, and a locking mechanism is provided at the tail end of the bistable operating mechanism. The locking mechanism is fixedly installed on the welding base assembly.

[0006] In a preferred embodiment: the front end of the locking mechanism is connected to a tripping operation handle, and a status pointer is provided on the welded base assembly.

[0007] In a preferred embodiment: the welding base assembly includes a fixed base plate and a limiting slide. Several limiting slides are fixed at equal intervals on the inner groove of the fixed base plate. Each limiting slide has a limiting elongated hole parallel to the drive rod on its left and right side walls. Each limiting elongated hole is provided with a slidable limiting roller. Each limiting roller is fixedly connected to the drive rod.

[0008] In a preferred embodiment: the bottom of the shielding cover of the recloser is provided with a fixed base, the shielding cover is fixedly connected to the fixed base plate through the fixed base, a movable insulating rod is provided inside the shielding cover, a connecting rod is installed at both ends of the insulating rod, the connecting rod at the bottom of the insulating rod is movably connected to the drive plate, a mold spring is sleeved on the connecting rod at the bottom of the insulating rod, and the tail end of the drive plate is movably connected to the drive rod through a limiting roller.

[0009] In a preferred embodiment: a vacuum interrupter is formed inside the top of the shielding cover shell, a stationary contact is fixedly installed at the top of the vacuum interrupter, and a slidable moving contact is provided at the bottom of the vacuum interrupter. The moving contact is fixedly connected to the insulating pull rod through a connecting rod at the top of the insulating pull rod.

[0010] In a preferred embodiment: the bistable operating mechanism includes a bistable drive mechanism, a moving iron core drive shaft, a mechanism drive plate and a drive rod. The moving iron core drive shaft moves through the bistable drive mechanism. The right end of the moving iron core drive shaft is fixed to the drive rod by two mechanism drive plates and bolts. The drive rod and the moving iron core drive shaft are driven in the same direction.

[0011] In a preferred embodiment: the locking mechanism has a locking seat fixed to a fixed base plate, and a rotatable mechanism drive spindle is provided in the middle of the locking seat. Two linear rotating rods are fixedly connected to the left end of the cylindrical surface of the mechanism drive spindle, and two arc-shaped rotating rods are fixedly connected to the right end of the cylindrical surface of the mechanism drive spindle. The front end of the mechanism drive spindle is fixedly connected to a shaft, and the front end of the connecting shaft passes through the welded base assembly and is fixed to the opening operation handle.

[0012] In a preferred embodiment: a limit rod is provided above the main shaft of the mechanism drive, and the limit rod corresponds to the linear rotating rod of the main shaft of the mechanism drive.

[0013] In a preferred embodiment: a rolling bushing is fixedly provided at the tail end of the moving iron core drive shaft, and the rolling bushing is correspondingly provided with the arc-shaped rotating rod of the mechanism drive main shaft to form a mechanical lock.

[0014] In a preferred embodiment: the rear end of the drive spindle of the mechanism passes through the locking seat and is fixedly installed with a limit switch actuating plate, and the limit switch is fixedly installed at the rear end of the locking seat. The limit switch actuating plate corresponds to the limit switch to form an electrical lock.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When in use, this utility model reduces transmission loss by using the drive rod and the drive shaft of the moving iron core to drive in a collinear manner, and uses a locking structure to realize manual tripping, which is convenient for maintenance by staff. It also provides double-layer locking for the recloser to prevent product safety accidents caused by staff misoperation. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the bistable operating mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the reconciliation device of this utility model;

[0022] Figure 5 This is a schematic diagram of the drive board of this utility model;

[0023] Figure 6 This is a schematic diagram of the locking mechanism of this utility model in the closed state;

[0024] Figure 7 This is a schematic diagram of the locking mechanism of this utility model in the open state;

[0025] In the picture:

[0026] Detailed Implementation

[0027] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0028] like Figures 1-7 As shown, this utility model discloses a bistable recloser, including a welded base assembly 1, reclosers 2, a bistable operating mechanism 3, and a locking mechanism 4. Multiple reclosers 2 are connected to the welded base assembly 1, and a bistable operating mechanism 3 is disposed inside the welded base assembly 1. The bistable operating mechanism 3 is movably connected to the multiple reclosers 2. A locking mechanism 4 is disposed at the tail end of the bistable operating mechanism 3. The locking mechanism 4 is fixedly installed on the welded base assembly 1, and a tripping operating handle 5 is connected to the front end of the locking mechanism 4. A status pointer 6 is disposed on the welded base assembly 1 for indicating and displaying the tripping and closing of the reclosers 2.

[0029] The welding base assembly 1 includes a fixed base plate 101 and a limiting slide block 102. Several limiting slide blocks 102 are fixed at equal intervals on the inner groove of the fixed base plate 101. Each limiting slide block 102 has a limiting elongated hole 103 parallel to the drive rod 304 on its left and right side walls. Each limiting elongated hole 103 is provided with a slidable limiting roller 104. Each limiting roller 104 is fixedly connected to the drive rod 304. The limiting roller 104 slides with the limiting elongated hole 103 and the drive rod 304, so that the drive rod 304 can slide back and forth along the orientation direction of the limiting elongated hole 103, thereby making the limiting slide block 102 a stable support for the sliding of the drive rod 304.

[0030] The bottom of the shielding cover 201 of the recloser 2 is provided with a fixed base 202. The shielding cover 201 is fixedly connected to the fixed base plate 101 through the fixed base 202. A movable insulating rod 204 is provided inside the shielding cover 201. Both ends of the insulating rod 204 are equipped with connecting rods. The connecting rod at the bottom of the insulating rod 204 is movably connected to the drive plate 208. A mold spring 205 is sleeved on the connecting rod at the bottom of the insulating rod 204. The mold spring 205 serves as the reset component of the moving contact 206. The tail end of the drive plate 208 is movably connected to the drive rod 304 through the limiting roller 104. The gate is connected in a dynamic manner. A vacuum interrupter 203 is opened inside the top of the shielding shell 201. A stationary contact 207 is fixedly installed at the top of the vacuum interrupter 203. A slidable moving contact 206 is provided at the bottom of the vacuum interrupter 203. The moving contact 206 is fixedly connected to the insulating pull rod 204 through a connecting rod at the top of the insulating pull rod 204. The driving pull rod 304 drives the driving plate 208 to adjust the horizontal angle of the driving plate 208, so that the moving contact 206 can slide back and forth in the vacuum interrupter 203, approaching / moving away from the stationary contact 207 to complete the opening and closing of the gate.

[0031] The bistable operating mechanism 3 includes a bistable drive mechanism 301, a moving iron core drive shaft 302, a mechanism drive plate 303, and a drive rod 304. The moving iron core drive shaft 302 moves through the bistable drive mechanism 301. The right end of the moving iron core drive shaft 302 is bolted to the drive rod 304 through two mechanism drive plates 303. The drive rod 304 and the moving iron core drive shaft 302 are driven in the same line to reduce transmission loss.

[0032] In the locking mechanism 4, the locking seat 402 is fixed to the fixed base plate 101, providing a locking function for the moving iron core drive shaft 302. A rotatable mechanism drive main shaft 404 is located in the middle of the locking seat 402. Two linear rotating rods are fixedly connected to the left end of the cylindrical surface of the mechanism drive main shaft 404, and two arc-shaped rotating rods are fixedly connected to the right end of the cylindrical surface of the mechanism drive main shaft 404. The front end of the mechanism drive main shaft 404 is fixedly connected to the shaft 401. The front end of the connecting shaft 401 passes through the welded base assembly 1 and is fixed to the tripping operation handle 5. A limit rod 403 is provided above the mechanism drive main shaft 404. The limit rod 403 corresponds to the linear rotating rods of the mechanism drive main shaft 404, allowing the rotation... The travel is limited to ensure that the mechanical limit can reach the optimal angle. A rolling sleeve 407 is fixedly installed at the tail of the moving iron core drive shaft 302. The rolling sleeve 407 is correspondingly set with the arc-shaped rotating rod of the mechanism drive main shaft 404 to form a mechanical lock. The rear end of the mechanism drive main shaft 404 passes through the lock seat 402 and is fixedly installed with the limit switch actuating plate 405. The limit switch 406 is fixedly installed at the rear end of the lock seat 402. The limit switch actuating plate 405 corresponds with the limit switch 406 to form an electrical lock. The double lock of mechanical lock and electronic lock facilitates the operation of the switch for maintenance and avoids product safety accidents caused by the operator's misoperation, thus ensuring the safety of the operator.

[0033] Working principle

[0034] When this utility model is in use, the external controller provides a remote control signal for opening the circuit breaker. The bistable drive mechanism 301 drives the mechanism drive plate 303 on the moving iron core drive shaft 302 to move to the left. Then, the mechanism drive plate 303 drives the drive rod 304 to move to the left. The drive rod 304 drives the drive plate 208 in linkage. The drive plate 208 will drive the insulating rod 204 to move upward. The moving contact 206 moves upward and is in close contact with the stationary contact 207, realizing the closing action. The switch is closed, and the status pointer 6 points to the closed position.

[0035] The external controller provides a remote control signal for opening the circuit breaker. The bistable drive mechanism 301 drives the mechanism drive plate 303 on the moving iron core drive shaft 302 to move to the right. The mechanism drive plate 303 then drives the drive rod 304 to move to the right. The drive rod 304 drives the drive plate 208 in conjunction. The drive plate 208 will drive the insulating rod 204 to move downward. The moving contact 206 moves downward and separates from the stationary contact 207, realizing the opening action. The switch is opened, and the status pointer 6 points to the opening position.

[0036] When the switch is in the closed state, the operator can rotate the opening operation handle 5, which drives the mechanism drive main shaft 404 on the connecting shaft 401 to rotate. The arc-shaped rotating rod on the mechanism drive main shaft 404 presses the rolling bushing 407, causing the moving iron core drive shaft 302 to move to the right. The moving contact 206 moves downward and separates from the stationary contact 207, thus opening the switch. The status pointer 6 points to the open position, triggering the interlocking contact. The limit switch 406 and the limit switch toggle plate 405 correspond to achieve electrical interlocking. The mechanism drive main shaft 404 abuts against the tail end of the drive rod 304, thereby completing the mechanical interlocking and realizing manual opening. This facilitates maintenance by the operator and provides double interlocking for the recloser 2, preventing product safety accidents caused by operator misoperation.

[0037] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A bistable recloser, characterized in that, The assembly includes a welding base assembly (1), a recloser (2), a bistable operating mechanism (3), and a locking mechanism (4). Multiple reclosers (2) are connected to the welding base assembly (1). A bistable operating mechanism (3) is provided inside the welding base assembly (1). The bistable operating mechanism (3) is movably connected to multiple reclosers (2). A locking mechanism (4) is provided at the tail end of the bistable operating mechanism (3). The locking mechanism (4) is fixedly installed on the welding base assembly (1).

2. The bistable recloser according to claim 1, characterized in that, The front end of the locking mechanism (4) is connected to the tripping operation handle (5), and the welding base assembly (1) is provided with a status pointer (6).

3. The bistable recloser according to claim 1, characterized in that, The welding base assembly (1) includes a fixed base plate (101) and a limiting slide (102). Several limiting slides (102) are fixed at equal intervals on the inner groove of the fixed base plate (101). Each limiting slide (102) has a limiting elongated hole (103) on its left and right side walls. Each limiting elongated hole (103) is provided with a sliding limiting roller (104).

4. The bistable recloser according to claim 1, characterized in that, The bottom of the shielding shell (201) of the reconciler (2) is provided with a fixed base (202). The shielding shell (201) is fixedly connected to the fixed base plate (101) through the fixed base (202). A movable insulating rod (204) is provided inside the shielding shell (201). Both ends of the insulating rod (204) are equipped with connecting rods. The connecting rod at the bottom of the insulating rod (204) is movably connected to the drive plate (208). A mold spring (205) is sleeved on the connecting rod at the bottom of the insulating rod (204). The tail end of the drive plate (208) is movably connected to the drive rod (304) through the limiting roller (104).

5. The bistable recloser according to claim 4, characterized in that, A vacuum interrupter (203) is provided inside the top of the shielding shell (201). A stationary contact (207) is fixedly installed at the top of the cavity of the vacuum interrupter (203). A slidable moving contact (206) is provided at the bottom of the cavity of the vacuum interrupter (203). The moving contact (206) is fixedly connected to the insulating pull rod (204) through the connecting rod at the top of the insulating pull rod (204).

6. The bistable recloser according to claim 5, characterized in that, The bistable operating mechanism (3) includes a bistable drive mechanism (301), a moving iron core drive shaft (302), a mechanism drive plate (303), and a drive rod (304). The moving iron core drive shaft (302) moves through the bistable drive mechanism (301). The right end of the moving iron core drive shaft (302) is bolted to the drive rod (304) through two mechanism drive plates (303). The drive rod (304) and the moving iron core drive shaft (302) are driven in the same line. Each limiting roller (104) is fixedly connected to the drive rod (304).

7. The bistable recloser according to claim 6, characterized in that, In the locking mechanism (4), the locking seat (402) is fixed on the fixed base plate (101). A rotatable mechanism drive spindle (404) is provided in the middle of the locking seat (402). Two linear rotating rods are fixedly connected to the left end of the cylindrical surface of the mechanism drive spindle (404), and two arc-shaped rotating rods are fixedly connected to the right end of the cylindrical surface of the mechanism drive spindle (404). The front end of the mechanism drive spindle (404) is fixedly connected to the shaft (401). The front end of the connecting shaft (401) passes through the welding base assembly (1) and is fixed to the tripping operation handle (5).

8. The bistable recloser according to claim 7, characterized in that, A limit rod (403) is provided above the main shaft (404) of the mechanism, and the limit rod (403) corresponds to the linear rotating rod of the main shaft (404) of the mechanism.

9. The bistable recloser according to claim 7, characterized in that, A rolling bushing (407) is fixedly provided at the tail of the moving iron core drive shaft (302). The rolling bushing (407) is correspondingly provided with the arc-shaped rotating rod of the mechanism drive main shaft (404) to form a mechanical lock.

10. The bistable recloser according to claim 7, characterized in that, The rear end of the drive spindle (404) of the mechanism passes through the locking seat (402) and is fixedly installed with the limit switch actuating plate (405). The limit switch (406) is fixedly installed at the rear end of the locking seat (402). The limit switch actuating plate (405) corresponds to the limit switch (406) to form an electrical lock.

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