Opening and closing current acquisition device and circuit breaker

Abstract

The invention discloses an opening and closing current acquisition device which comprises two opening and closing assemblies, and each opening and closing assembly comprises a lateral fixing support, an opening and closing body connected with the connecting end of the lateral fixing support, an external current acquisition arm connected with the opening and closing body and a fault monitoring assembly connected with the external current acquisition arm. Wherein the opening and closing body is provided with a transmission assembly used for driving the external current acquisition arm to rotate relative to the opening and closing body, the transmission assembly is connected with the external current acquisition arm, and the opening and closing body rotates and closes relative to the lateral fixing support. The transmission assembly is linked with the external current acquisition arm to rotate relative to the opening and closing body, and the fault monitoring assembly performs optical scanning on the opening and closing body. The invention further discloses a circuit breaker. According to the switching-on and switching-off current acquisition device and the circuit breaker, the operation state of the switching-on and switching-off body can be monitored, and functionality is enhanced; the structure is simple, and the safety and stability of equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a switching current acquisition device and a circuit breaker. Background Art

[0002] ‌‌The opening and closing operation is a circuit breaker. The opening and closing operation in the power system not only affects the safe operation of the equipment, but is also an important measure to ensure the safety of personnel.

[0003] The current opening and closing devices simply control the circuit to be open or open by flipping. During the closing process, the current cannot be collected and analyzed. At the same time, the operating status of the opening and closing devices cannot be observed and recorded at close range, resulting in the inability to provide timely warning of faults. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a switching current collection device and a circuit breaker, which can monitor the operating status of the switching body and enhance functionality; the structure is simplified and the safety and stability of the equipment are improved.

[0005] In order to solve the above technical problems, the present invention provides a switch-on and switch-off current collection device, comprising: two switch-on and switch-off components arranged opposite to each other, the switch-on and switch-off components comprising: a lateral fixed bracket, a switch-on and switch-off body connected to the connecting end of the lateral fixed bracket, an external current collection arm connected to the switch-on and switch-off body, and a fault monitoring component connected to the external current collection arm, wherein: the switch-on and switch-off body is provided with a transmission component for driving the external current collection arm to rotate relative to the switch-on and switch-off body, and the transmission component is connected to the external current collection arm, wherein: the switch-on and switch-off body is rotated and closed relative to the lateral fixed bracket, the external current collection arm is rotated relative to the switch-on and switch-off body through the transmission component, and the fault monitoring component optically scans the switch-on and switch-off body; after the two switch-on and switch-off components are closed, the fault monitoring component optically scans the structure and position of the external current collection arm.

[0006] Among them, the fault monitoring component includes: a accommodating cavity, a reflective lens installed in the accommodating cavity and an embedded optical recognition module. The embedded optical recognition module is installed on the inner wall of the accommodating cavity corresponding to the reflective lens, wherein: light is introduced into the interior through the accommodating cavity, and is reflected to the embedded optical recognition module by the reflective lens. By comparing the front and back optical image information of the embedded optical recognition module, the position and structural changes of the opening and closing body and the external current collection arm are judged to perform fault warning and judgment.

[0007] The fault monitoring component is spherical, made of insulating material, and the accommodating cavity is conical; The fault monitoring component also includes: an infrared transmitting module and an infrared receiving module for signal positioning, and the infrared transmitting module and the infrared receiving module are respectively installed on the two opening and closing components in a one-to-one correspondence.

[0008] Among them, a flip groove is provided on the inner side of the accommodating cavity, and an electrically controlled flip closing cover is connected to the flip groove to control the opening and closing of the accommodating cavity.

[0009] Among them, the opening and closing switch body and the external current collection arm are fastened by an insulating assembly set, and the frame shell of the insulating assembly set is sleeved on the opening and closing switch body; the end of the external current collection arm is provided with a shaft seat and an annular protective cover shell, wherein: the annular protective cover shell encloses the frame shell to form a sealed cavity, and the shaft seat is installed in the sealed cavity.

[0010] The external current collection arm is a hollow metal structure, in which a current collection unit is installed.

[0011] Among them, the transmission component is installed in the transmission assembly shell, and the transmission assembly shell is installed on the adjacent side of the opening and closing switch body; the transmission component includes: a transverse transmission shaft, a longitudinal transmission shaft, transverse gears fixed at both ends of the transverse transmission shaft and longitudinal gears fixed at both ends of the longitudinal transmission shaft respectively installed in the transmission assembly shell, wherein: the transverse gears and the longitudinal gears are meshed and connected; one end of the transverse transmission shaft passes through the frame shell and meshes with the shaft seat for transmission.

[0012] Wherein, the outer sleeve of the transmission assembly shell is provided with a protective sleeve.

[0013] The current acquisition unit includes: an open-close Hall current sensor, an analog-to-digital conversion circuit, a main control system, an optical Ethernet port and a power supply.

[0014] In order to solve the above technical problem, the present invention further discloses a circuit breaker, which includes the above-mentioned opening and closing current collection device.

[0015] The switch-on / off current collection device and the circuit breaker of the present invention have the following beneficial effects: the switch-on / off current collection device and the circuit breaker include: two switch-on / off components arranged opposite to each other, the switch-on / off components include: a lateral fixed bracket, a switch-on / off body connected to the connecting end of the lateral fixed bracket, an external current collection arm connected to the switch-on / off body, and a fault monitoring component connected to the external current collection arm, wherein: the switch-on / off body is provided with a transmission component for driving the external current collection arm to rotate relative to the switch-on / off body, and the transmission component is connected to the external current collection arm, wherein: the switch-on / off body is rotated and closed relative to the lateral fixed bracket, the external current collection arm is rotated relative to the switch-on / off body through the transmission component, and the fault monitoring component optically scans the switch-on / off body; after the two switch-on / off components are closed, the fault monitoring component optically scans the structure and position of the external current collection arm, so as to monitor the operating status of the switch-on / off body and enhance functionality; the structure is simplified, and the safety and stability of the equipment are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the opening and closing current collection device according to an embodiment of the present invention.

[0018] Figure 2 Schematic diagram of the internal structure of the external current collection arm of an embodiment of the present invention.

[0019] Figure 3 Schematic diagram of the internal structure of a fault monitoring component according to an embodiment of the present invention.

[0020] Figure 4 Schematic diagram of the internal structure of a transmission assembly according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-Figure 4 The figure shows the first embodiment of the opening and closing current acquisition device of the present invention.

[0023] In this embodiment, the split-and-close current acquisition device comprises: two split-and-close components arranged opposite to each other, the split-and-close components comprising: a lateral fixed bracket 1, a split-and-close body 2 connected to the connecting end of the lateral fixed bracket 1, an external current acquisition arm 4 connected to the split-and-close body 2, and a fault monitoring component 5 connected to the external current acquisition arm 4, wherein: the split-and-close body 2 is provided with a transmission component 8 for driving the external current acquisition arm 4 to rotate relative to the split-and-close body 2, the transmission component 8 is connected to the external current acquisition arm 4, wherein: the split-and-close body 2 is rotated and closed relative to the lateral fixed bracket 1, the external current acquisition arm 4 is rotated relative to the split-and-close body 2 through the transmission component 8, and the fault monitoring component 5 performs an optical scan on the split-and-close body 2; After the two-way closing assembly is closed, the fault monitoring assembly 5 optically scans the structure and position of the external current collection arm 4 .

[0024] During specific implementation, the distance between the two opening and closing components meets the distance setting of closing and opening. The structure of one opening and closing component is explained as an example.

[0025] The switch body 2 and the external current collection arm 4 are fastened by the insulating assembly set 3. The frame shell 31 of the insulating assembly set 3 is sleeved on the switch body 2. The end of the external current collection arm 4 is provided with a shaft seat 41 and an annular protective cover shell 42, wherein: the annular protective cover shell 42 encloses the frame shell 31 to form a sealed cavity, and the shaft seat 41 is installed in the sealed cavity.

[0026] During implementation, in order to cooperate with the movable assembly, an annular assembly groove is opened on the outer side of the insulating assembly set 3, and the external current collection arm 4 is movably assembled with the insulating assembly set 3 by sleeved in the annular assembly groove through the shaft seat 41 at the connecting end.

[0027] The purpose of such a configuration is that the frame shell 31 and the annular protective cover shell 42 form a relatively closed protective cover outside the shaft seat 41, which can ensure the external protection and dust isolation of the transmission mechanism, avoid the influence of the outdoor environment on the transmission equipment, and also improve the durability of the transmission structure.

[0028] Furthermore, in order to cooperate with the monitoring of the current, the external current collection arm 4 is a metal collection arm with a hollow structure, and a current collection unit 43 is fixedly installed inside the external current collection arm 4 .

[0029] The current acquisition unit 43 is mainly composed of an open-close Hall current sensor, an analog-to-digital conversion circuit, a main control system, an optical Ethernet port, and a power supply system. The open-close Hall current sensor is used to convert the measured current into a voltage signal of a certain proportion, and input the voltage signal into the analog-to-digital conversion circuit; the analog-to-digital conversion circuit is used to quantify the voltage signal and send it to the main control system for calculation, judgment, and filtering; the main control system then packages the filtered current data and sends it to the online monitoring device through the optical Ethernet port.

[0030] Further, the fault monitoring component 5 is connected to the end of the external current collection arm 4, and the fault monitoring component 5 includes: a receiving cavity 51, a reflective lens 52 installed in the receiving cavity 51, and an embedded optical recognition module 6, and the embedded optical recognition module 6 is installed on the inner wall of the receiving cavity 51 corresponding to the reflective lens 52, wherein: The light is introduced into the interior through the accommodating cavity 51, and is reflected to the embedded optical recognition module 6 by the reflective lens 52. By comparing the front and rear optical image information of the embedded optical recognition module 6, the position and structural changes of the opening and closing body 2 and the external current collection arm 4 are judged for fault warning and judgment.

[0031] During implementation, the fault monitoring component 5 is spherical and made of insulating material, and the accommodating cavity 51 is conical. The embedded optical recognition module 6 is fixedly mounted on the inner wall matched with the reflective lens 52. The optical fiber is introduced into the interior through the accommodating cavity 51, and then reflected by the reflective lens 52 to the embedded optical recognition module 6. Then, the embedded optical recognition module 6 compares the front and rear optical images to determine the position and structural changes of the opening and closing body 2 and the external current collection arm 4, so as to give early warning and judgment of the fault.

[0032] Preferably, the fault monitoring component 5 further includes: an infrared transmitting module 53 and an infrared receiving module 54 for signal positioning, and the infrared transmitting module 53 and the infrared receiving module 54 are respectively installed on the two opening and closing components in a one-to-one correspondence.

[0033] During implementation, after the external current collection arms 4 on both sides are closed, the fault monitoring components 5 located outside the external current collection arms 4 on both sides will be stationary, and at this time, the embedded infrared transmitting module 53 located in the fault monitoring component 5 will emit infrared signals, and then the embedded infrared receiving module 54 in the fault monitoring component 5 on the other side will receive the infrared signals to complete the signal positioning. Once the embedded infrared receiving modules 54 inside the fault monitoring components 5 on both sides cannot normally receive the infrared positioning signals, this means that the opening and closing of the switch or the external current collection arm 4 has been deformed or misaligned, and then it is necessary to compare the optical signals of the embedded optical recognition module 6 to determine which problem has occurred, so as to provide a timely warning of the fault.

[0034] Preferably, a flip groove 55 is provided on the inner side of the accommodating cavity 51 , and an electrically controlled flip closing cover 56 is connected to the flip groove 55 to control the opening and closing of the accommodating cavity 51 .

[0035] When implemented, the electrically controlled flip-closed cover 56 includes: a telescopic support rod movably mounted inside the flip groove 55 and a transparent cover plate mounted inside the opening of the accommodating chamber 51, and the extended end of the telescopic support rod is movably assembled with the inner side of the transparent cover plate. The flipping adjustment of the transparent cover plate is adjusted by the extension and retraction of the telescopic support rod. The transparent cover plate can prevent dust and impurities from flowing into the accommodating chamber 51 when not in use.

[0036] Furthermore, the transmission assembly 8 is installed in the transmission assembly shell 7, and the transmission assembly shell 7 is installed on the adjacent side of the opening and closing switch body 2.

[0037] The transmission assembly 8 includes: a transverse transmission shaft 81, a longitudinal transmission shaft 82, a transverse gear 83 fixed at both ends of the transverse transmission shaft 81, and a longitudinal gear 84 fixed at both ends of the longitudinal transmission shaft 82, wherein: the transverse gear 83 and the longitudinal gear 84 are meshed and connected; one end of the transverse transmission shaft 81 passes through the frame shell 31 and meshes with the shaft seat 41 for transmission.

[0038] Preferably, the outer cover of the transmission assembly housing 7 is provided with a protective cover 71. The function of the protective cover 71 is to improve the protection and guiding stability of the transverse transmission shaft 81 and the longitudinal transmission shaft 82.

[0039] When the opening and closing current collection device in this embodiment is implemented, when the opening and closing bodies 2 of the two opening and closing components arranged opposite to each other are flipped and closed along the connecting end of the lateral fixed bracket 1, the transmission component 8 will run synchronously, and then drive the external current collection arm 4 to rotate along the fault monitoring component 5, and carry the fault monitoring component 5 to perform circular operation.

[0040] During operation, the embedded optical recognition module 6 first performs optical scanning and recognition on the opening and closing body 2. When the closing is completed, the embedded optical recognition module 6 then performs optical scanning and recognition on the structure and position of the external current collection arm 4. When the closing is completed, current will be generated, and the current will be introduced into the external current collection arm 4, and then the current will be collected and synchronously analyzed.

[0041] The present invention also discloses a circuit breaker, which includes the above-mentioned opening and closing current collection device. The specific implementation of the circuit breaker is the same as the implementation of the above-mentioned opening and closing current collection device, and will not be repeated.

[0042] A switching current collection device and a circuit breaker implementing the present invention have the following beneficial effects: the switching current collection device and the circuit breaker include: two switching components arranged opposite to each other, the switching components include: a lateral fixed bracket, a switching body connected to the connecting end of the lateral fixed bracket, an external current collection arm connected to the switching body, and a fault monitoring component connected to the external current collection arm, wherein: the switching body is provided with a transmission component for driving the external current collection arm to rotate relative to the switching body, and the transmission component is connected to the external current collection arm, wherein: the switching body is rotated and closed relative to the lateral fixed bracket, the external current collection arm is rotated relative to the switching body through the transmission component, and the fault monitoring component optically scans the switching body; after the two switching components are closed, the fault monitoring component optically scans the structure and position of the external current collection arm, so as to monitor the operating status of the switching body and enhance functionality; the structure is simplified, and the safety and stability of the equipment are improved.

Claims

1. A device for collecting current during opening and closing of a switch, characterized in that: include: Two opening and closing components arranged opposite to each other, the opening and closing components comprising: a lateral fixing bracket, an opening and closing body connected to the connecting end of the lateral fixing bracket, an external current collection arm connected to the opening and closing body, and a fault monitoring component connected to the external current collection arm, wherein: The switch body is provided with a transmission assembly for driving the external current collection arm to rotate relative to the switch body, and the transmission assembly is connected to the external current collection arm, wherein: The opening and closing switch body is rotated relative to the lateral fixed bracket to close, and the external current collection arm is rotated relative to the opening and closing switch body through the transmission component, and the fault monitoring component optically scans the opening and closing switch body; after the two opening and closing switches are closed, the fault monitoring component optically scans the structure and position of the external current collection arm.

2. The opening and closing current acquisition device according to claim 1, characterized in that: The fault monitoring assembly comprises: a receiving cavity, a reflective lens installed in the receiving cavity, and an embedded optical recognition module, wherein the embedded optical recognition module is installed on the inner wall of the receiving cavity corresponding to the reflective lens, wherein: Light is introduced into the interior through the accommodating cavity, and is reflected onto the embedded optical recognition module by the reflective lens. By comparing the front and rear optical image information of the embedded optical recognition module, the position and structural changes of the opening and closing switch body and the external current collection arm are judged to perform fault warning and judgment.

3. The opening and closing current acquisition device according to claim 2, characterized in that: The fault monitoring component is spherical and made of insulating material, and the accommodating cavity is conical; The fault monitoring component also includes: an infrared transmitting module and an infrared receiving module for signal positioning, and the infrared transmitting module and the infrared receiving module are respectively installed on the two opening and closing components in a one-to-one correspondence.

4. The opening and closing current acquisition device according to claim 3, characterized in that: A flip groove is provided on the inner side of the accommodating cavity, and an electrically controlled flip closing cover is connected to the flip groove to control the opening of the accommodating cavity.

5. The opening and closing current acquisition device according to claim 1, characterized in that: The switch body and the external current collection arm are fastened by an insulating assembly set, and the frame shell of the insulating assembly set is sleeved on the switch body; An axle seat and an annular protective cover shell are provided at the end of the external current collection arm, wherein: the annular protective cover shell surrounds the frame shell to form a sealed cavity, and the axle seat is installed in the sealed cavity.

6. The opening and closing current acquisition device according to claim 5, characterized in that: The external current collection arm is a hollow metal structure, in which a current collection unit is installed.

7. The opening and closing current acquisition device according to claim 5, characterized in that: The transmission assembly is installed in a transmission assembly housing, and the transmission assembly housing is installed on the adjacent side of the opening and closing switch body; The transmission assembly includes: a transverse transmission shaft, a longitudinal transmission shaft, transverse gears fixed at both ends of the transverse transmission shaft, and longitudinal gears fixed at both ends of the longitudinal transmission shaft, respectively installed in the transmission assembly shell, wherein: the transverse gears and the longitudinal gears are meshed and connected; one end of the transverse transmission shaft passes through the frame shell and meshes with the shaft seat for transmission.

8. The device for collecting the opening and closing currents according to claim 7, characterized in that: The outer sleeve of the transmission assembly shell is provided with a protective sleeve.

9. The device for collecting the opening and closing currents according to claim 6, characterized in that: The current acquisition unit comprises: an open-close Hall current sensor, an analog-to-digital conversion circuit, a main control system, an optical Ethernet port and a power supply.

10. A circuit breaker, characterized in that: The circuit breaker comprises the opening and closing current acquisition device as described in any one of claims 1-9.

Images