A contactless switching-on and switching-off primary-secondary integrated pole-mounted circuit breaker

Abstract

The present invention discloses a non-contact closing and opening primary-secondary integrated pole-mounted circuit breaker, which relates to the field of high-voltage switchgear in power production. The device includes a device main body, a protective outer component is arranged at the front end of the device main body, a conductive circuit is arranged inside the protective outer component, and a rotating shaft control mechanism is fixedly connected to the bottom end of the protective outer component. One end of a conductive column is fixedly connected inside the front end of the device main body, a positioning knife plate is fixedly connected to the bottom of the other end of the conductive column, the positioning knife plate is fixedly connected to the top of an upper conductive column, both the upper conductive column and the lower conductive column are slidably connected inside the protective outer component, and an electrode contact is fixedly connected to the bottom of the lower conductive column. The device realizes the smoothness of the circuit by setting two groups of switches, improves the safety and versatility of the control switch circuit by modularizing the electrical circuit and setting two groups of switches, and can timely repair and replace the module unit when the circuit is damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage switchgear in power production, and specifically relates to a non-contact on-off primary-secondary integrated pole-mounted circuit breaker. Background Art

[0002] A primary-secondary integrated pole-mounted circuit breaker refers to integrating primary equipment (such as the circuit breaker body) and secondary equipment (such as measurement, control, protection, etc. devices) to form a set of standardized circuit breaker equipment installed on a pole. This integration aims to achieve the integration, intelligence, and high efficiency of the equipment, reduce the connection and coordination problems between equipment, and improve the reliability and stability of the system.

[0003] The combination of existing high-voltage circuit breakers, isolation control switches, and sensors usually exposes the isolation control switch to the external environment and controls the switch only by the clamping and disconnection of the knife plate and the knife head. This makes it easy for the insulating parts of the conductive plate and the knife switch to be insufficient or aged, and the mechanical components to be affected by moisture, rust, or freezing in harsh environmental weather. Moreover, this primary switch with the knife head and knife plate clamped together is prone to problems such as aging and jamming, and when damaged, it cannot disconnect the circuit immediately, making it easy to have safety problems during the switching operation. In view of the above situation, the present invention provides a non-contact on-off primary-secondary integrated pole-mounted circuit breaker to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a non-contact on-off primary-secondary integrated pole-mounted circuit breaker, which solves the problems that the combination of existing high-voltage circuit breakers, isolation control switches, and sensors usually exposes the isolation control switch to the external environment and controls the switch only by the clamping and disconnection of the knife plate and the knife head, making it easy for the insulating parts of the conductive plate and the knife switch to be insufficient or aged, and the mechanical components to be affected by moisture, rust, or freezing in harsh environmental weather. Moreover, this primary switch with the knife head and knife plate clamped together is prone to problems such as aging and jamming, and when damaged, it cannot disconnect the circuit immediately, making it easy to have safety problems during the switching operation.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A non-contact on-off primary-secondary integrated pole-mounted circuit breaker includes a device main body. A protective outer component is provided at the front end of the device main body. A conductive circuit is provided inside the protective outer component. A rotating shaft control mechanism is fixedly connected to the bottom end of the protective outer component. The conductive circuit includes a conductive column, a positioning knife plate, a knife head, a conductive upper column, a conductive lower column, and an electrode contact. One end of the conductive column is fixedly connected inside the front end of the device main body. The positioning knife plate is fixedly connected to the bottom end of the other end of the conductive column. The positioning knife plate is fixedly connected to the top end of the conductive upper column. Both the conductive upper column and the conductive lower column are slidably connected inside the protective outer component. The electrode contact is fixedly connected to the bottom of the conductive lower column.

[0006] Preferably, the device body includes a sealed metal box, a solid-sealed pole column and a sensor. The sealed metal box is fixedly connected to the bottom of the solid-sealed pole column, and the sensor is fixedly connected to the front end of the solid-sealed pole column. Support long rods are fixedly connected to both the left and right sides of the front end of the sealed metal box, and a support thin rod is fixedly connected between the inner walls of the support long rods.

[0007] Preferably, the protective outer component includes a rainproof ceramic tube, an L-shaped connecting piece, a connecting long tube and a restoring connecting base. One end of the rainproof ceramic tube is fixedly connected to the inside of the sensor, and the other end of the rainproof ceramic tube is fixedly connected to the L-shaped connecting piece. The bottom end of the L-shaped connecting piece is fixedly connected to the top end of the connecting long tube, and the restoring connecting base is slidably connected to the bottom end of the connecting long tube.

[0008] Preferably, an insulating protective layer is fixedly connected inside the rainproof ceramic tube. A sliding groove is formed on the inner wall of the L-shaped connecting piece. A spring is fixedly connected to the outer surface of the restoring connecting base, and the other end of the spring abuts against the outer wall of the bottom end of the connecting long tube.

[0009] Preferably, the conductive circuit further includes a sliding round block. The sliding round block is fixedly connected between the cutter head and the upper conductive column, and the sliding round block is slidably connected in the sliding groove.

[0010] Preferably, the conductive column is arranged inside the rainproof ceramic tube. The cutter head and the upper conductive column are slidably connected inside the L-shaped connecting piece. The lower conductive column is fixedly connected inside the restoring connecting base, and the upper conductive column and the lower conductive column are slidably connected inside the connecting long tube.

[0011] Preferably, the rotating shaft control mechanism is rotatably connected inside the support long rod. The rotating shaft control mechanism includes a support top seat, a hinged sliding block, a rotating push rod, a rotating shaft column and a fixed long column. The support top seat is fixedly connected to the restoring connecting base. The hinged sliding block is fixedly connected to the bottom of the support top seat. The hinged sliding block is slidably connected to the front end of the rotating push rod. The rotating push rod is fixedly connected inside the rotating shaft column. The rotating push rod is rotatably connected inside the fixed long column. Both ends of the rotating shaft column are rotatably connected inside the support long rod.

[0012] Preferably, the rotating shaft control mechanism further includes a self-locking part and a control rod. The self-locking part includes a self-locking sliding groove rod and a solid iron ball. The solid iron ball is slidably connected in the bottom sliding groove of the self-locking sliding groove rod. The self-locking sliding groove rod is fixedly connected inside the rotating shaft column. The control rod is fixedly connected to one end of the rotating shaft column.

[0013] Preferably, a connection main body base is fixedly connected to the bottom of the sealed metal box. A rectangular column is fixedly connected to the connection main body base. A groove is provided at one end of the rectangular column. A permanent magnet layer is fixedly connected inside the groove. The solid iron ball is movably clamped inside the groove. Connection holes are provided at both ends of the connection main body base.

[0014] The present invention discloses a non-contact on-off primary-secondary integrated pole-mounted circuit breaker, and the beneficial effects thereof are as follows:

[0015] 1. In this device, by providing two sets of switches, namely a knife head - knife plate and a conductive upper column - conductive lower column, on the conductive circuit. When the circuit needs to be closed, first raise the conductive lower column to abut against the conductive upper column to connect the circuit, and drive the conductive upper column to move upward until the knife head is clamped in the knife plate to achieve secondary circuit connection and ensure the smoothness of the circuit. By modularizing the electrical circuit and setting two switches, the safety and versatility of the control switch circuit are improved. When the circuit is damaged, the module unit can be repaired and replaced in a timely manner.

[0016] 2. In this device, by installing a layer of protective outer component outside the conductive circuit, the protection of the conductive circuit is enhanced, and the resistance to bad weather such as rain and snow is improved. Some accidents caused by isolation measures of animals and humans no longer occur. At the same time, since the protective outer component is also modularized, the convenience of replacement and maintenance of the protective outer component is improved.

[0017] 3. In this device, the conductive circuit is controlled by a rotating shaft control mechanism at the bottom, and through the cooperation of a self-locking part and the permanent magnet layer on the main body base, the device can achieve self-locking through the sliding of the iron ball and adsorption with the magnet layer after the circuit is connected, and elastic failure that is likely to occur in spring self-locking will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall back structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the overall front detailed structure of the present invention;

[0022] Figure 4 Schematic cross-sectional structure diagram of the outer protective component of the present invention;

[0023] Figure 5 Schematic cross-sectional structure diagram of the explosion of the outer protective component and the conductive circuit of the present invention;

[0024] Figure 6 Schematic overall structure diagram of the shaft control mechanism of the present invention;

[0025] Figure 7 Schematic overall structure diagram of the self-locking member of the present invention;

[0026] Figure 8 Schematic cross-sectional structure diagram of the shaft control mechanism of the present invention;

[0027] Figure 9 Schematic overall structure diagram of the main body base of the present invention.

[0028] In the figure: 1, device main body; 11, sealed metal box; 111, support long rod; 112, support thin rod; 12, solid-sealed pole column; 13, sensor; 2, outer protective component; 21, rain-proof ceramic tube; 211, insulation protection layer; 22, L-shaped connecting piece; 221, sliding groove; 23, connecting long tube; 24, restoration connecting base; 241, spring; 3, shaft control mechanism; 31, support top seat; 32, hinged sliding block; 33, rotating push-pull rod; 34, rotating shaft column; 35, self-locking member; 351, self-locking sliding groove rod; 352, solid iron ball; 36, fixed long column; 37, control rod; 4, conductive circuit; 41, conductive column; 42, positioning knife plate; 43, knife head; 44, sliding round block; 45, upper conductive column; 46, lower conductive column; 47, electrode contact; 5, main body base; 51, rectangular column; 52, groove; 53, permanent magnet layer; 54, connecting hole. Specific implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] By providing a non-contact opening and closing primary-secondary integrated pole-mounted circuit breaker in the embodiments of the present application, the problem that the combination of an existing high-voltage circuit breaker, an isolating control switch, and a sensor usually exposes the isolating control switch to the external environment and controls the switch only by the clamping and disconnection of the knife plate and the knife head is solved. This makes it easy to cause insufficient insulation or aging of the conductive plate and the knife switch in bad weather, and the mechanical components are affected by moisture, rust, or freezing. Moreover, when the primary switch with the knife head and the knife plate clamped is easily damaged due to aging, jamming, etc., the circuit cannot be disconnected immediately, and safety problems are likely to occur during the switching of the switch.

[0031] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific embodiments.

[0032] The embodiments of the present invention disclose a non-contact opening and closing primary-secondary integrated pole-mounted circuit breaker.

[0033] According to the attached Figures 1-9 As shown, it includes a device main body 1. A protective outer component 2 is provided at the front end of the device main body 1. A conductive circuit 4 is provided inside the protective outer component 2. A rotating shaft control mechanism 3 is fixedly connected to the bottom end of the protective outer component 2. The conductive circuit 4 includes a conductive column 41, a positioning knife plate 42, a knife head 43, a sliding round block 44, a conductive upper column 45, a conductive lower column 46, and an electrode contact 47. One end of the conductive column 41 is fixedly connected inside the front end of the device main body 1. The positioning knife plate 42 is fixedly connected to the bottom of the other end of the conductive column 41. The positioning knife plate 42 is fixedly connected to the top end of the conductive upper column 45. Both the conductive upper column 45 and the conductive lower column 46 are slidably connected inside the protective outer component 2. The electrode contact 47 is fixedly connected to the bottom of the conductive lower column 46. The sliding round block 44 is fixedly connected between the knife head 43 and the conductive upper column 45. When opening the conductive circuit 4, the conductive lower column 46 at the bottom receives an upward force and thus slides upward to abut against the conductive upper column 45, driving the conductive upper column 45 to move upward, so that the knife head 43 at the top of the conductive upper column 45 is clamped into the positioning knife plate 42 to connect the entire circuit. The electrode contact 47 is used to connect to the external circuit system. The current flows through the conductive column 41 and into the device main body 1. It improves the safety of the device through a secondary switch.

[0034] The device main body 1 includes a sealed metal box 11, a solid-sealed pole column 12, and a sensor 13. The sealed metal box 11 is fixedly connected to the bottom of the solid-sealed pole column 12. The sensor 13 is fixedly connected to the front end of the solid-sealed pole column 12. Support long rods 111 are fixedly connected to both the left and right sides of the front end of the sealed metal box 11. A support thin rod 112 is fixedly connected between the inner walls of the support long rods 111. The sensor 13 is connected to the circuit breaker body as a secondary device. The support long rods 111 and the support thin rods 112 act as supports for the conductive circuit 4 and the protective outer component 2.

[0035] The outer protective component 2 includes a rainproof ceramic tube 21, an L-shaped connecting piece 22, a connecting long tube 23, and a restoring connection base 24. One end of the rainproof ceramic tube 21 is fixedly connected inside the sensor 13, and the other end of the rainproof ceramic tube 21 is fixedly connected to the L-shaped connecting piece 22. The bottom end of the L-shaped connecting piece 22 is fixedly connected to the top end of the connecting long tube 23. The restoring connection base 24 is slidably connected to the bottom end of the connecting long tube 23. The rainproof ceramic tube 21, the L-shaped connecting piece 22, the connecting long tube 23, and the restoring connection base 24 are all made of insulating materials, which are used to protect the internal conductive circuit 4 so that it is no longer affected by the external environment and factors. The bottom of the restoring connection base 24 is connected to other components in the form of a flange and bolts, and the electrode contact 47 is fixed.

[0036] An insulating protective layer 211 is fixedly connected inside the rainproof ceramic tube 21. A chute 221 is provided on the inner wall of the L-shaped connecting piece 22. A spring 241 is fixedly connected to the outer surface of the restoring connection base 24. The other end of the spring 241 abuts against the outer wall of the bottom end of the connecting long tube 23. A sliding round block 44 is slidably connected in the chute 221. A conductive column 41 is arranged inside the rainproof ceramic tube 21. A cutter head 43 and a conductive upper column 45 are slidably connected inside the L-shaped connecting piece 22. A conductive lower column 46 is fixedly connected inside the restoring connection base 24. The conductive upper column 45 and the conductive lower column 46 are slidably connected inside the connecting long tube 23. The spring 241 is used to make the restoring connection base 24 disconnect under the action of elastic force.

[0037] The rotating shaft control mechanism 3 is rotatably connected inside the support long rod 111. The rotating shaft control mechanism 3 includes a support top seat 31, a hinged sliding block 32, a rotating push-pull rod 33, a rotating shaft column 34, and a fixed long column 36. The support top seat 31 is fixedly connected to the restoring connection base 24. The hinged sliding block 32 is fixedly connected to the bottom of the support top seat 31. The hinged sliding block 32 is slidably connected to the front end of the rotating push-pull rod 33. The rotating push-pull rod 33 is fixedly connected inside the rotating shaft column 34. The rotating push-pull rod 33 is rotatably connected inside the fixed long column 36. Both ends of the rotating shaft column 34 are rotatably connected inside the support long rod 111. The rotating shaft control mechanism 3 adopts the principle of a link mechanism. During use, the rotating shaft column 34 rotates, driving the rotating push-pull rod 33 to rotate, so that the end of the rotating push-pull rod 33 near the outer end rotates upward, thereby making the hinged sliding block 32 slide outward and upward at the same time, and finally making the restoring connection base 24 slide upward to drive the movement of the conductive circuit 4.

[0038] The rotating shaft control mechanism 3 further includes a self-locking member 35 and a control rod 37. The self-locking member 35 includes a self-locking chute rod 351 and a solid iron ball 352. The solid iron ball 352 is slidably connected in the bottom chute of the self-locking chute rod 351. The self-locking chute rod 351 is fixedly connected inside the rotating shaft column 34. The control rod 37 is fixedly connected to one end of the rotating shaft column 34. The self-locking member 35 is used to keep the whole rotating shaft control mechanism 3 immovable after the support top seat 31 of the rotating shaft control mechanism 3 is jacked up, so that the circuit is always connected, and the self-locking function is realized by the gravity of the heavy object acting on both ends of the rotating shaft column 34 respectively. The control rod 37 is used to control the opening and closing of the conductive circuit 4.

[0039] A connection main body base 5 is fixedly connected to the bottom of the sealed metal box 11. A rectangular column 51 is fixedly connected to the connection main body base 5. A groove 52 is opened at one end of the rectangular column 51. A permanent magnet layer 53 is fixedly connected inside the groove 52. The solid iron ball 352 is movably clamped inside the groove 52. Connection holes 54 are opened at both ends of the connection main body base 5. By arranging the permanent magnet layer 53 inside the groove 52, when the conductive circuit 4 is turned on, the solid iron ball 352 is magnetically attracted inside the groove 52, so that in addition to the gravity of the solid iron ball 352, there is also a magnetic attraction force to keep the device fixed and self-locked. The connection holes 54 are used to connect other components such as the base.

[0040] In summary, compared with the prior art, the following beneficial effects are achieved:

[0041] 1. In this device, by setting two groups of switches, namely the cutter head 43 - positioning cutter plate 42 and the conductive upper column 45 - conductive lower column 46, on the conductive circuit 4, when the circuit needs to be closed, first raise the conductive lower column 46 to abut against the conductive upper column 45 to connect the circuit, and drive the conductive upper column 45 to move upward until the cutter head 43 is clamped in the positioning cutter plate 42 to conduct a secondary circuit connection to achieve smooth circuit. By modularizing the electrical circuit and setting two switches, the safety and versatility of the control switch circuit are improved. When the circuit is damaged, the module unit can be repaired and replaced in time.

[0042] 2. In this device, by installing a layer of protective outer component 2 outside the conductive circuit 4, the protection of the conductive circuit 4 is enhanced, and the resistance to bad weather such as rain and snow is improved. Some accidents no longer occur due to the isolation measures of animals and humans. At the same time, since the protective outer component 2 also adopts modular processing, the convenience of replacement and maintenance of the protective outer component is improved.

[0043] 3. The device controls the conductive circuit 4 through the rotating shaft control mechanism 3 at the bottom, and through the cooperation of the self-locking member 35 and the permanent magnet layer 53 on the main body base 5, the device can achieve self-locking through the sliding of the solid iron ball 352 and adsorption with the permanent magnet layer 53 after the circuit is connected, and elastic failure that is prone to occur in spring self-locking will not occur.

[0044] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A non-contact on-off integrated primary and secondary pole-mounted circuit breaker, characterized in that, It includes a device main body (1), a protective outer component (2) is arranged at the front end of the device main body (1), a conductive circuit (4) is arranged inside the protective outer component (2), and a rotating shaft control mechanism (3) is fixedly connected to the bottom end of the protective outer component (2); Among them, the conductive circuit (4) includes a conductive column (41), a positioning knife plate (42), a knife head (43), a conductive upper column (45), a conductive lower column (46) and an electrode contact (47); One end of the conductive column (41) is fixedly connected inside the front end of the device main body (1), the positioning knife plate (42) is fixedly connected to the bottom of the other end of the conductive column (41), the positioning knife plate (42) is fixedly connected to the top of the conductive upper column (45), both the conductive upper column (45) and the conductive lower column (46) are slidably connected inside the protective outer component (2), and the electrode contact (47) is fixedly connected to the bottom of the conductive lower column (46).

2. The non-contact opening and closing primary-secondary integrated pole-mounted circuit breaker according to claim 1, wherein: The device main body (1) includes a sealed metal box (11), a solid-sealed pole column (12) and a sensor (13); The sealed metal box (11) is fixedly connected to the bottom of the solid-sealed pole column (12), the sensor (13) is fixedly connected to the front end of the solid-sealed pole column (12), support long rods (111) are fixedly connected to both the left and right sides of the front end of the sealed metal box (11), and a support thin rod (112) is fixedly connected between the inner walls of the support long rods (111).

3. The non-contact closing and opening primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The protective outer component (2) includes a rain-proof ceramic tube (21), an L-shaped connecting piece (22), a connecting long tube (23) and a restoring connecting base (24); One end of the rain-proof ceramic tube (21) is fixedly connected inside the sensor (13), the other end of the rain-proof ceramic tube (21) is fixedly connected to the L-shaped connecting piece (22), the bottom end of the L-shaped connecting piece (22) is fixedly connected to the top of the connecting long tube (23), and the restoring connecting base (24) is slidably connected to the bottom end of the connecting long tube (23).

4. The non-contact on-off and primary-secondary integrated pole-mounted circuit breaker according to claim 3, characterized in that: An insulating protective layer (211) is fixedly connected inside the rain-proof ceramic tube (21), a chute (221) is opened on the inner wall of the L-shaped connecting piece (22), a spring (241) is fixedly connected to the outer surface of the restoring connecting base (24), and the other end of the spring (241) abuts against the outer wall of the bottom end of the connecting long tube (23).

5. The non-contact on-off and primary-secondary integrated pole-mounted circuit breaker according to claim 4, wherein: The conductive circuit (4) further includes a sliding round block (44), the sliding round block (44) is fixedly connected between the knife head (43) and the conductive upper column (45), and the sliding round block (44) is slidably connected inside the chute (221).

6. The non-contact opening and closing primary and secondary integrated pole-mounted circuit breaker according to claim 5, wherein: The conductive column (41) is arranged inside the rain-proof ceramic tube (21), the knife head (43) and the conductive upper column (45) are slidably connected inside the L-shaped connecting piece (22), the conductive lower column (46) is fixedly connected inside the restoring connecting base (24), and the conductive upper column (45) and the conductive lower column (46) are slidably connected inside the connecting long tube (23).

7. A non-contact on-off integrated primary and secondary pole-mounted circuit breaker according to claim 2, characterized in that: The shaft control mechanism (3) is rotatably connected within the support long rod (111). The shaft control mechanism (3) includes a support top seat (31), a hinged sliding block (32), a rotating push-pull rod (33), a rotating shaft column (34), and a fixed long column (36). The support top seat (31) is fixedly connected to the restoration connection base (24). The hinged sliding block (32) is fixedly connected to the bottom of the support top seat (31). The hinged sliding block (32) is slidably connected to the front end of the rotating push-pull rod (33). The rotating push-pull rod (33) is fixedly connected within the rotating shaft column (34). The rotating push-pull rod (33) is rotatably connected within the fixed long column (36). Both ends of the rotating shaft column (34) are rotatably connected within the support long rod (111).

8. The non-contact closing and opening primary and secondary integrated pole-mounted circuit breaker according to claim 7, wherein: The shaft control mechanism (3) further includes a self-locking member (35) and a control rod (37). The self-locking member (35) includes a self-locking chute rod (351) and a solid iron ball (352). The solid iron ball (352) is slidably connected within the bottom chute of the self-locking chute rod (351). The self-locking chute rod (351) is fixedly connected within the rotating shaft column (34). The control rod (37) is fixedly connected to one end of the rotating shaft column (34).

9. The non-contact opening and closing primary and secondary integrated pole-mounted circuit breaker according to claim 8, wherein: The bottom of the sealed metal box (11) is fixedly connected to a connection main body base (5). A rectangular column (51) is fixedly connected to the connection main body base (5). A groove (52) is formed at one end of the rectangular column (51). A permanent magnet layer (53) is fixedly connected within the groove (52).

10. The non-contact closing and opening integrated primary and secondary pole-mounted circuit breaker according to claim 9, wherein: The solid iron ball (352) is movably clamped within the groove (52). Connection holes (54) are formed at both ends of the connection main body base (5).

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