Automated power distribution circuit breaker

Abstract

The utility model discloses an automatic distribution circuit breaker relates to distribution circuit breaker technical field, wherein, shell, permanent magnet, coil, conductive bottom block, damping mechanism, elastic part, rack, gear, two connecting rods, two conductive blocks and two binding posts, one end of two connecting rods is rotatedly connected with permanent magnet respectively, two binding posts fixedly are equipped with in shell, two conductive blocks are respectively one -to -one correspondence and abut on two binding posts, two conductive blocks are respectively one -to -one correspondence and rotate the other end of two connecting rods, and conductive bottom block is electrically connected with coil, and two conductive blocks are respectively and conductive bottom block slidingly connected, and rack is connected with permanent magnet, and gear is engaged with rack, and damping mechanism is used for providing rotating damping force to gear, and the utility model discloses when circuit short circuit, can open circuit automatically, still can realize circuit automatic delay reset close -up effect, reduce operating risk.

Description

Technical Field

[0001] This utility model relates to the field of power distribution circuit breaker technology, and particularly to automated power distribution circuit breakers. Background Technology

[0002] In the power distribution network of the power system, automatic distribution circuit breakers, as key protective devices, bear the important responsibility of quickly disconnecting the circuit when abnormal conditions such as overload and short circuit occur, so as to protect the circuit equipment and personal safety.

[0003] Existing automated distribution circuit breakers, as important safety devices in power systems, primarily function to automatically trip when abnormal current is detected (such as overload or short circuit), thereby quickly disconnecting the circuit and preventing safety accidents such as equipment damage or fires. However, after tripping and disconnecting the circuit, existing automated distribution circuit breakers usually require operators to be physically present on-site to manually close the circuit to restore power supply. Manual closing poses certain operational risks and is quite inconvenient. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an automated power distribution circuit breaker that can automatically disconnect the circuit when a short circuit occurs, and also achieves an automatic delayed reset closing effect, reducing operational risks.

[0005] An automated power distribution circuit breaker according to a first aspect embodiment of the present invention includes a housing, a permanent magnet, a coil, a conductive base block, a damping mechanism, an elastic element, a rack, a gear, two connecting rods, two conductive blocks, and two connecting rods.

[0006] In this configuration, one end of each of the two connecting rods is rotatably connected to the permanent magnet, two connecting rods are fixedly inserted into the outer casing, two conductive blocks abut against the two connecting rods respectively, and two conductive blocks are rotatably connected to the other ends of the two connecting rods respectively. The conductive base block is electrically connected to the coil, and the two conductive blocks are slidably connected to the conductive base block respectively. The rack is connected to the permanent magnet, and the gear meshes with the rack. The damping mechanism provides rotational damping force to the gear. When the automatic power distribution circuit breaker is in the open state, the coil generates a magnetic force that repels the permanent magnet, causing the permanent magnet to drive the two conductive blocks to disengage from the two connecting rods via the connecting rods. The elastic element provides a restoring force to the rack, so that the permanent magnet drives the two conductive blocks to abut against the two connecting rods via the connecting rods.

[0007] The automated power distribution circuit breaker according to the embodiments of this utility model has at least the following beneficial effects: when a short circuit occurs in the circuit and the current is too large, the short circuit current will generate a magnetic field through the coil, causing the permanent magnet to move away from the coil. The permanent magnet will drive the connecting rod to swing, and the swing of the connecting rod will cause the conductive block to disengage from the terminal bar, thus breaking the circuit and playing a protective role. After the circuit is broken, the magnetic field of the coil disappears, and under the action of the elastic element, the permanent magnet gradually approaches the coil. Since the damping mechanism will generate rotational damping force on the gear, the rack will reset after a period of time, thereby achieving the effect of automatic delayed reset and closure of the circuit, reducing operational risks.

[0008] According to some embodiments of the present invention, a portion of the rack extends outside the outer casing, and a baffle portion is provided at the end of the rack outside the outer casing. The elastic element is located between the baffle portion and the outer casing.

[0009] According to some embodiments of this utility model, the elastic element is configured as a telescopic spring.

[0010] According to some embodiments of the present invention, the damping mechanism includes a handle, a threaded post, a spring, and a pressure plate spring. The housing is provided with a threaded hole, the threaded post is threadedly connected to the threaded hole, the handle is fixedly connected to the threaded post, the handle is located outside the housing, the gear is fixedly connected to a rotating shaft, the spring is sleeved on the rotating shaft and fixedly connected to the rotating shaft, and the pressure plate spring is located between the threaded post and the rotating shaft.

[0011] According to some embodiments of the present invention, the damping mechanism further includes a rubber pressure plate, which abuts against the rotating shaft and the pressure plate spring.

[0012] According to some embodiments of the present invention, the permanent magnet is located above the coil.

[0013] According to some embodiments of the present invention, the outer casing is provided with a through hole, and a cooling fan is provided inside the through hole.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0016] Figure 1 This is a schematic diagram of the structure of an automated power distribution circuit breaker according to some embodiments of the present invention;

[0017] Figure 2This is a schematic diagram of the structure of an automated power distribution circuit breaker according to some embodiments of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of an automated power distribution circuit breaker according to some embodiments of the present invention;

[0019] Figure 4 This is a partial structural schematic diagram of an automated power distribution circuit breaker according to some embodiments of the present invention.

[0020] Figure label:

[0021] 1. Outer shell, 2. Rack, 3. Telescopic spring, 4. Heat sink, 5. Connecting rod, 6. Gear, 7. First connecting rod, 8. Permanent magnet, 9. Second connecting rod, 10. Conductive block, 11. Conductive base block, 12. Coil, 13. Handle, 14. Threaded column, 15. Spring spring, 16. Pressure plate spring, 17. Rubber pressure plate, 18. Rotating shaft. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] like Figures 1 to 4 As shown, an automated power distribution circuit breaker according to an embodiment of this utility model includes a housing 1, a rack 2, a telescopic spring 3, a heat sink 4, connecting rods 5, a gear 6, two first connecting rods 7, a permanent magnet 8, a second connecting rod 9, two conductive blocks 10, a conductive base block 11, a coil 12, and a damping structure. The rack 2 is slidably connected inside the housing 1, extending vertically. A portion of the rack 2 extends outside the housing 1, and a baffle is provided at the end of the rack 2 outside the housing 1. A telescopic spring 3 connects the baffle to the housing 1. Two connecting rods 5 are connected to the lower part of the housing 1, passing through the housing 1 and fixedly installed. The connector 5 is used to connect to the wire. The rear side of the housing 1 is provided with a rotatable gear 6, which meshes with the rack 2. The lower side of the rack 2 is connected to the second connecting rod 9, and the lower side of the second connecting rod 9 is connected to the permanent magnet 8. The left and right sides of the permanent magnet 8 are respectively rotatably connected to the upper ends of the two first connecting rods 7. The first connecting rods 7 are tilted. The two conductive base blocks 11 are respectively rotatably connected to the lower ends of the two first connecting rods 7. The two conductive blocks 10 are respectively slidably connected to the top of the conductive base blocks 11. The conductive blocks 10 are electrically connected to the conductive base blocks 11. The coil 12 is located on the upper side of the middle part of the conductive base block 11 and is electrically connected to the conductive base block 11.

[0024] The damping structure is used to provide rotational damping force to gear 6, such as Figures 2 to 4 As shown, the damping structure includes a handle 13, a threaded post 14, a spring 15, a pressure plate spring 16, and a rubber pressure plate 17. A threaded hole is provided on the rear side of the outer casing 1, and the threaded post 14 is threaded into the threaded hole. The handle 13 is connected to the rear side of the threaded post 14. The gear 6 has a rotating shaft 18, and the gear 6 rotates synchronously with the rotating shaft 18. The spring 15 is sleeved on the outer circumference of the rotating shaft 18, and the inner end of the spring 15 is fixedly connected to the rotating shaft 18. The outer end of the spring 15... With a fixed configuration, when the rotating shaft 18 rotates, the rotating shaft 18 will drive the spring 15 to twist and deform. The pressure plate spring 16 is located between the threaded post 14 and the rotating shaft 18. The rubber pressure plate 17 is elastic and abuts against the rotating shaft 18 and the pressure plate spring 16. Under the action of the pressure plate spring 16, the rubber pressure plate 17 and the rotating shaft 18 are squeezed together. When the rotating shaft 18 rotates, the rubber pressure plate 17 generates friction on the rotating shaft 18, which also forms a rotational damping force on the gear 6.

[0025] When using this utility model, connect the terminal block 5 to the circuit. Under normal circumstances, such as Figure 2 When the automated circuit breaker is in the ON state, the current flows sequentially through the left connecting rod 5, the left conductive block 10, the conductive base block 11, the right conductive block 10, and the right connecting rod 5. The current passing through the coil 12 causes it to generate a magnetic force. Under normal circumstances, this magnetic force is weak and insufficient to overcome the elastic force of the telescopic spring 3. In the event of a short circuit, the short-circuit current is larger, and the magnetic force generated by the coil 12 is stronger. Under the action of this magnetic force, the permanent magnet 8 moves upward, causing the second connecting rod 9 to move upward, which in turn causes the rack 2 to slide upward on the outer casing 1. The telescopic spring 3 is stretched, and through the meshing motion of the rack 2 and gear 6, the gear 6 rotates. The gear 6, via the rotating shaft 18, causes the spring spring 15 to deform. Simultaneously, as the permanent magnet 8 moves upward, the first connecting rod 7 rotates, pulling the conductive block 10 inward, causing it to disengage from the connecting rod 5, thus disconnecting the circuit and protecting it. After the circuit is disconnected, the magnetic force generated by coil 12 disappears. Under the elastic force of extension spring 3, rack 2 gradually moves downward, and spring spring 15 recovers its deformation. At the same time, under the action of pressure plate spring 16, rubber pressure plate 17 is pressed onto rotating shaft 18. Under the action of friction, the rotational reset speed of gear 6 is slowed down, causing rack 2 to fall slowly. This causes conductive block 10 to slide out again and contact terminal 5, resulting in a delayed reset and conduction of the circuit. By using handle 13, threaded column 14 can be rotated to adjust the degree of contraction of pressure plate spring 16 and the degree of pressure of rubber pressure plate 17 on gear 6, thereby controlling the rotational reset speed of gear 6 and controlling the delayed reset time. This achieves the function of automatically disconnecting when there is an abnormality in the circuit current and automatically delaying the reset and reconnection without manual operation, reducing operational risks.

[0026] It should be noted that the automatic reset function of the automatic distribution circuit breaker is to attempt to force power supply and try to connect the circuit. This is because in some cases, the factors causing a short circuit are unstable and may only last for a very short period of time. Automatic reset can ensure that the circuit can continue to operate normally for a period of time.

[0027] In some other embodiments, the damping structure can be configured as a spring that abuts against the end face of the gear 6. When the gear 6 rotates, it can generate a frictional force on the gear 6, thereby forming a rotational damping force.

[0028] Reference Figure 2 As shown, in some embodiments, a heat sink 4 is connected to the lower right side of the outer casing 1. A fan is rotatably installed inside the heat sink 4. The fan is located in a through hole in the outer wall of the outer casing 1 and can extract hot air from the outer casing 1.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An automated distribution circuit breaker characterized by, It includes a housing, a permanent magnet, a coil, a conductive base block, a damping mechanism, an elastic element, a rack, a gear, two connecting rods, two conductive blocks, and two connecting rods; In this configuration, one end of each of the two connecting rods is rotatably connected to the permanent magnet, two connecting rods are fixedly inserted into the outer casing, two conductive blocks abut against the two connecting rods respectively, and two conductive blocks are rotatably connected to the other ends of the two connecting rods respectively. The conductive base block is electrically connected to the coil, and the two conductive blocks are slidably connected to the conductive base block respectively. The rack is connected to the permanent magnet, and the gear meshes with the rack. The damping mechanism provides rotational damping force to the gear. When the automatic power distribution circuit breaker is in the open state, the coil generates a magnetic force that repels the permanent magnet, causing the permanent magnet to drive the two conductive blocks to disengage from the two connecting rods via the connecting rods. The elastic element provides a restoring force to the rack, so that the permanent magnet drives the two conductive blocks to abut against the two connecting rods via the connecting rods.

2. The automated distribution circuit breaker of claim 1, wherein, A portion of the rack extends outside the outer casing, and a baffle is provided at the end of the rack outside the outer casing. The elastic element is located between the baffle and the outer casing.

3. The automated distribution circuit breaker of claim 2, wherein, The elastic element is configured as a telescopic spring.

4. The automated distribution circuit breaker of claim 1, wherein, The damping mechanism includes a handle, a threaded post, a spring, and a pressure plate spring. The housing has a threaded hole, the threaded post is threadedly connected to the threaded hole, the handle is fixedly connected to the threaded post, the handle is located outside the housing, the gear is fixedly connected to a rotating shaft, the spring is sleeved on the rotating shaft and fixedly connected to the rotating shaft, and the pressure plate spring is located between the threaded post and the rotating shaft.

5. The automated distribution circuit breaker of claim 4, wherein, The damping mechanism also includes a rubber pressure plate, which abuts against the rotating shaft and the pressure plate spring.

6. The automated distribution breaker according to claim 1, wherein, The permanent magnet is located above the coil.

7. The automated distribution circuit breaker of claim 1, wherein, The outer casing has a through hole, and a cooling fan is installed inside the through hole.

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