A kind of opening and closing current acquisition device, circuit breaker

Abstract

The application discloses a kind of opening and closing current acquisition devices, comprising: two opening and closing components, opening and closing component includes: lateral fixed support, with the connecting end of lateral fixed support is connected to the opening and closing body, with the external current acquisition arm of opening and closing body is connected and with the fault monitoring component of external current acquisition arm is connected, wherein: opening and closing body is equipped with transmission component to drive external current acquisition arm relative to opening and closing body rotates, transmission component with external current acquisition arm is connected, wherein: opening and closing body is rotated relative to lateral fixed support and closes, through transmission component linkage external current acquisition arm relative to opening and closing body rotates, fault monitoring component carries out optical scanning to opening and closing body.The application also discloses a circuit breaker.The opening and closing current acquisition device and the circuit breaker of the application can monitor the running state of the opening and closing body, enhance the functionality;Structure is simplified, and the safety and stability of equipment are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit breaker, in particular to a kind of opening and closing current acquisition device and circuit breaker. BACKGROUND

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

[0003] The current opening and closing equipment only controls circuit on or off by flipping, but in the process of closing, current cannot be collected and analyzed, and the running state of opening and closing equipment cannot be observed and recorded in close range, so that timely fault warning cannot be carried out. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an opening and closing current acquisition device and circuit breaker, which can monitor the running state of opening and closing body and enhance functionality.

[0005] In order to solve the above technical problems, the present application provides an opening and closing current acquisition device, which comprises two opening and closing assemblies arranged opposite to each other, and each opening and closing assembly comprises a lateral fixed support, an opening and closing body connected with the connecting end of the lateral fixed 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. The opening and closing body is provided with a transmission assembly for driving the external current acquisition arm to rotate relative to the opening and closing body, and the transmission assembly is connected with the external current acquisition arm. When the two opening and closing assemblies are closed, the fault monitoring assembly optically scans the structure and position of the external current acquisition arm.

[0006] The fault monitoring assembly comprises a containing cavity, a mirror lens arranged in the containing cavity and an embedded optical identification module, and the embedded optical identification module is arranged on the inner wall of the containing cavity corresponding to the mirror lens. By comparing the front and rear optical image information of the embedded optical identification module, the position and structure change of the opening and closing body and the external current acquisition arm are determined to perform fault warning and judgment.

[0007] The fault monitoring assembly is spherical and made of insulating material, and the containing cavity is conical.

[0008] The fault monitoring assembly further comprises an infrared emission module and an infrared receiving module for signal positioning, and the infrared emission module and the infrared receiving module are respectively and one-to-one arranged on the two opening and closing assemblies.

[0009] The inner side of the accommodating cavity is provided with a turnover groove, and an electrically-controlled turnover closing cover plate is connected at the position of the turnover groove to control the opening and closing of the opening of the accommodating cavity.

[0010] The opening and closing body and the external current collecting arm are fastened through an insulating assembly sleeve, the frame sleeve of the insulating assembly sleeve is sleeved on the opening and closing body, and the end of the external current collecting arm is provided with an axle seat and an annular protective cover, wherein the annular protective cover forms a sealed cavity with the frame sleeve, and the axle seat is arranged in the sealed cavity.

[0011] The external current collecting arm is a hollow metal structure, and a current collecting unit is arranged in the internal part of the external current collecting arm.

[0012] The transmission assembly is arranged in a transmission assembly shell, and the transmission assembly shell is arranged on the adjacent side of the opening and closing body; the transmission assembly comprises a horizontal transmission shaft, a vertical transmission shaft, a horizontal gear fixed at the two ends of the horizontal transmission shaft and a vertical gear fixed at the two ends of the vertical transmission shaft, which are arranged in the transmission assembly shell, and the horizontal gear and the vertical gear are in meshing connection; and the horizontal transmission shaft is in meshing transmission with the axle seat through the frame sleeve.

[0013] The transmission assembly shell is externally sleeved with a protective sleeve.

[0014] The current collecting unit comprises an opening and closing type Hall current sensor, an analog-digital conversion circuit, a main control system, an optical Ethernet port and a power supply.

[0015] To solve the above technical problems, the application further discloses a circuit breaker, which comprises the opening and closing current collecting device.

[0016] The current acquisition device and circuit breaker of the present invention have the following beneficial effects: The current acquisition device and circuit breaker include two opening and closing assemblies arranged opposite each other. Each opening and closing assembly includes a lateral fixed bracket, an opening and closing body connected to the connecting end of the lateral fixed bracket, an external current acquisition arm connected to the opening and closing body, and a fault monitoring assembly connected to the external current acquisition arm. The opening and closing body is provided with a transmission assembly for driving the external current acquisition arm to rotate relative to the opening and closing body. The transmission assembly is connected to the external current acquisition arm. When the opening and closing body rotates relative to the lateral fixed bracket to close the circuit, the external current acquisition arm rotates relative to the opening and closing body through the transmission assembly. The fault monitoring assembly performs an optical scan of the opening and closing body. After the two opening and closing assemblies close the circuit, the fault monitoring assembly performs an optical scan of the structure and position of the external current acquisition arm, which can monitor the operating status of the opening and closing body and enhance functionality. The structure is simplified, improving the safety and stability of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the current acquisition device for opening and closing circuits according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the external current acquisition arm in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the fault monitoring component according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of the transmission component according to an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1-4 The figure shown is an embodiment of the current acquisition device for opening and closing circuits of the present invention.

[0024] The opening and closing current collecting device in the embodiment comprises two opening and closing assemblies arranged oppositely, and each opening and closing assembly comprises a lateral fixing support 1, an opening and closing body 2 connected with the connecting end of the lateral fixing support 1, an external current collecting arm 4 connected with the opening and closing body 2, and a fault monitoring assembly 5 connected with the external current collecting arm 4. The opening and closing body 2 is provided with a transmission assembly 8 for driving the external current collecting arm 4 to rotate relative to the opening and closing body 2, and the transmission assembly 8 is connected with the external current collecting arm 4. The opening and closing body 2 rotates relative to the lateral fixing support 1 to close, the external current collecting arm 4 is driven by the transmission assembly 8 to rotate relative to the opening and closing body 2, and the fault monitoring assembly 5 optically scans the opening and closing body 2.

[0025] After the two opening and closing assemblies are closed, the fault monitoring assembly 5 optically scans the structure and position of the external current collecting arm 4.

[0026] In specific implementation, the distance between the two opening and closing assemblies meets the distance setting for closing and opening. Taking one opening and closing assembly as an example, the structure thereof is described.

[0027] The opening and closing body 2 and the external current collecting arm 4 are fastened by an insulating assembly sleeve 3. The frame shell 31 of the insulating assembly sleeve 3 is sleeved on the opening and closing body 2. The end of the external current collecting arm 4 is provided with a shaft seat 41 and an annular protective shell 42. The annular protective shell 42 surrounds the frame shell 31 to form a sealed cavity, and the shaft seat 41 is arranged in the sealed cavity.

[0028] In implementation, a ring-shaped assembly groove is formed on the outer side of the insulating assembly sleeve 3 for active assembly. The shaft seat 41 of the connecting end of the external current collecting arm 4 is sleeved in the ring-shaped assembly groove to be actively assembled with the insulating assembly sleeve 3.

[0029] The frame shell 31 and the annular protective shell 42 form a relatively closed protective cover outside the shaft seat 41, which can ensure the external protection and dust prevention of the transmission mechanism, avoid the influence of the outdoor environment on the transmission equipment, and improve the durability of the transmission structure.

[0030] Further, the external current collecting arm 4 is a hollow structure metal collecting arm, and a current collecting unit 43 is fixedly arranged in the external current collecting arm 4 for monitoring the current.

[0031] The current collection unit 43 mainly consists of an open-close type Hall current sensor, an analog-digital conversion circuit, a main control system, an optical Ethernet interface and a power supply system. The open-close type Hall current sensor is used to convert the measured current into a voltage signal in a certain proportion and input the voltage signal into the analog-digital conversion circuit; the analog-digital conversion circuit is used to quantize the voltage signal and send it into the main control system for calculation, judgment and filtering; and the main control system further packs the filtered current data and sends it to the online monitoring device through the optical Ethernet interface.

[0032] Further, the fault monitoring assembly 5 is connected to the end of the external current collection arm 4, and the fault monitoring assembly 5 comprises a containing cavity 51, a reflecting lens 52 arranged in the containing cavity 51 and an embedded optical recognition module 6 arranged on the inner wall of the containing cavity 51 corresponding to the reflecting lens 52, wherein:

[0033] The light is introduced into the interior through the containing cavity 51, reflected by the reflecting lens 52 to the embedded optical recognition module 6, and the front and rear optical image information of the embedded optical recognition module 6 is compared to determine the position and structural change of the opening and closing body 2 and the external current collection arm 4, so as to perform fault early warning and judgment.

[0034] In implementation, the fault monitoring assembly 5 is spherical and made of insulating material, and the containing cavity 51 is conical. The embedded optical recognition module 6 is fixedly installed on the inner wall matched with the reflecting lens 52. The optical fiber is introduced into the interior through the containing cavity 51, then reflected by the reflecting lens 52 to the embedded optical recognition module 6, and then the front and rear optical images are compared by the embedded optical recognition module 6 to determine the position and structural change of the opening and closing body 2 and the external current collection arm 4, so as to perform fault early warning and judgment.

[0035] Preferably, the fault monitoring assembly 5 further comprises an infrared emission module 53 and an infrared receiving module 54 for signal positioning, and the infrared emission module 53 and the infrared receiving module 54 are arranged one by one on the two opening and closing assemblies.

[0036] In implementation, after the external current collection arms 4 on both sides are closed, the fault monitoring assemblies 5 outside the external current collection arms 4 on both sides are at rest, at this time the embedded infrared emission module 53 in the fault monitoring assembly 5 emits infrared signals, and then the embedded infrared receiving module 54 in the fault monitoring assembly 5 on the other side receives the infrared signals to complete signal positioning. Once the embedded infrared receiving module 54 in the fault monitoring assembly 5 on both sides cannot normally receive the infrared positioning signal, it means that the opening and closing or the external current collection arm 4 has deformation or misplacement, and then the optical signals of the embedded optical recognition module 6 are compared to determine which problem occurs, so as to perform timely fault early warning.

[0037] Preferably, the inner side of the accommodating cavity 51 is provided with a turnover groove 55, and an electrically-controlled turnover cover plate 56 is connected to the turnover groove 55, so as to control the opening and closing of the accommodating cavity 51.

[0038] In the implementation, the electrically-controlled turnover cover plate 56 comprises a telescopic supporting rod movably installed in the turnover groove 55 and a transparent cover plate movably installed on the inner side of the opening of the accommodating cavity 51, and the telescopic supporting rod is movably connected to the inner side of the transparent cover plate. The turnover of the transparent cover plate is adjusted by the telescopic movement of the telescopic supporting rod. The transparent cover plate can prevent dust and impurities from flowing into the accommodating cavity 51 in the idle time.

[0039] Further, the transmission assembly 8 is installed in a transmission assembly shell 7, and the transmission assembly shell 7 is installed on the adjacent side of the opening and closing body 2.

[0040] The transmission assembly 8 comprises a transverse transmission shaft 81, a longitudinal transmission shaft 82, a transverse gear 83 fixed on both ends of the transverse transmission shaft 81 and a longitudinal gear 84 fixed on both ends of the longitudinal transmission shaft 82, which are movably installed in the transmission assembly shell 7, wherein the transverse gear 83 and the longitudinal gear 84 are in meshing connection, and one end of the transverse transmission shaft 81 is in meshing transmission with the shaft seat 41 through the frame shell 31.

[0041] Preferably, the transmission assembly shell 7 is sleeved with a protective sleeve 71. The protective sleeve 71 can improve the protection and guiding stability of the transverse transmission shaft 81 and the longitudinal transmission shaft 82.

[0042] In the implementation of the opening and closing current collection device, when the opening and closing bodies 2 of the two relatively arranged opening and closing assemblies are turned and closed along the connecting end of the lateral fixed support 1, the transmission assembly 8 will be synchronously operated, and then drive the external current collection arm 4 to rotate along the fault monitoring assembly 5, and drive the fault monitoring assembly 5 to perform circumferential movement.

[0043] In the operation, the embedded optical identification module 6 first performs optical scanning identification on the opening and closing body 2, and then performs optical scanning identification on the structure and position of the external current collection arm 4 after the closing is completed. When the closing is performed, the current will be generated and introduced into the external current collection arm 4, and then the current collection and synchronous analysis are performed.

[0044] The application further discloses a circuit breaker comprising the opening and closing current collection device. The specific implementation of the circuit breaker is the same as that of the opening and closing current collection device, and will not be repeated here.

[0045] The application discloses a switching current collecting device and a circuit breaker. The switching current collecting device and the circuit breaker have the following beneficial effects: the switching current collecting device and the circuit breaker comprise two switching assemblies arranged oppositely, and each switching assembly comprises a lateral fixing support, a switching body connected with a connecting end of the lateral fixing support, an external current collecting arm connected with the switching body, and a fault monitoring assembly connected with the external current collecting arm. The switching body is provided with a transmission assembly for driving the external current collecting arm to rotate relative to the switching body. The transmission assembly is connected with the external current collecting arm. The switching body rotates to close the circuit breaker, the transmission assembly drives the external current collecting arm to rotate relative to the switching body, and the fault monitoring assembly optically scans the switching body. After the two switching assemblies are closed, the fault monitoring assembly optically scans the structure and position of the external current collecting arm, the running state of the switching body can be monitored, and the functionality is enhanced. The structure is simple, and the safety and stability of the equipment are improved.

Claims

1. A closing and opening current acquisition device, characterized by, The circuit breaker comprises: Two opposite switch-on and switch-off assemblies, each of which comprises a lateral fixed support, a switch-on and switch-off body connected to the connecting end of the lateral fixed support, an external current collecting arm connected to the switch-on and switch-off body, and a fault monitoring assembly connected to the external current collecting arm, wherein: The switch-on and switch-off body is provided with a transmission assembly for driving the external current collecting arm to rotate relative to the switch-on and switch-off body, and the transmission assembly is connected to the external current collecting arm, wherein: The switch-on and switch-off body rotates relative to the lateral fixed support to switch on, the transmission assembly drives the external current collecting arm to rotate relative to the switch-on and switch-off body, and the fault monitoring assembly optically scans the switch-on and switch-off body; after the two switch-on and switch-off assemblies are switched on, the fault monitoring assembly optically scans the structure and position of the external current collecting arm.

2. The opening and closing current acquisition device according to claim 1, wherein The fault monitoring assembly comprises a containing cavity, a reflecting mirror installed in the containing cavity, and an embedded optical identification module installed on the inner wall of the containing cavity corresponding to the reflecting mirror, wherein: Light is introduced into the containing cavity, reflected by the reflecting mirror to the embedded optical identification module, and the changes in the position and structure of the switch-on and switch-off body and the external current collecting arm are determined by comparing the front and back optical image information of the embedded optical identification module, so as to provide fault warning and judgment.

3. The opening and closing current acquisition device according to claim 2, wherein The fault monitoring assembly is spherical and made of insulating material, and the containing cavity is conical. The fault monitoring assembly further comprises an infrared emitting module and an infrared receiving module for signal positioning, and the infrared emitting module and the infrared receiving module are respectively and correspondingly installed on the two switch-on and switch-off assemblies.

4. The opening and closing current acquisition device according to claim 3, wherein The inner side of the containing cavity is provided with a turnover groove, and an electrically controlled turnover closure cover plate is connected to the position of the turnover groove to control the opening and closing of the containing cavity.

5. The opening and closing current acquisition device according to claim 1, wherein The switch-on and switch-off body and the external current collecting arm are fastened by an insulating assembly sleeve, and the frame sleeve of the insulating assembly sleeve is sleeved on the switch-on and switch-off body. The end of the external current collecting arm is provided with a shaft seat and an annular protective cover, wherein the annular protective cover surrounds the frame sleeve to form a sealed cavity, and the shaft seat is installed in the sealed cavity.

6. The opening and closing current acquisition device according to claim 5, wherein The external current collecting arm is a hollow metal structure, and a current collecting unit is installed in the internal part of the external current collecting arm.

7. The opening and closing current collecting device according to claim 5, wherein The transmission assembly is installed in a transmission assembly shell, and the transmission assembly shell is installed on the adjacent side of the switch-on and switch-off body. The transmission assembly comprises a horizontal transmission shaft, a vertical transmission shaft, a horizontal gear fixed on both ends of the horizontal transmission shaft, and a vertical gear fixed on both ends of the vertical transmission shaft, wherein the horizontal gear and the vertical gear are meshed and connected, and one end of the horizontal transmission shaft is meshed and driven with the shaft seat through the frame sleeve.

8. The opening and closing current collecting device according to claim 7, wherein The transmission assembly shell is externally sleeved with a protective sleeve.

9. The opening and closing current collecting device according to claim 6, wherein The current collecting unit comprises an open-close type Hall current sensor, an analog-digital conversion circuit, a main control system, an optical Ethernet port, and a power supply.

10. A circuit breaker characterized by, The circuit breaker comprises the switch-on and switch-off current collecting device according to any one of claims 1-9.

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