A modular plug-in circuit breaker

Abstract

The present invention relates to the technical field of circuit breakers, and discloses a modular pluggable circuit breaker, which includes an insulating base, a wiring housing disposed on the insulating base, a wiring unit disposed on the wiring housing, and the wiring unit includes a wiring component and a fixing component disposed on the wiring housing; the multi-wiring component includes a plurality of wiring holes opened on the wiring housing, a plurality of wiring grooves opened on the insulating base, a plurality of nuts rotatably disposed inside the plurality of wiring holes, a screw rod disposed at the lower end of the plurality of nuts, a lifting rod threadedly disposed on the screw rod, and an upper clamping plate disposed at the lower end of the screw rod; by providing the wiring unit, it enables the staff to wire multiple input wires simultaneously during wiring and can also disassemble multiple input wires simultaneously, with simple and fast operation, and the module can be plugged and unplugged, and the overall function setting is convenient and simple.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a modular pluggable circuit breaker. Background Art

[0002] A pluggable circuit breaker is a specially designed circuit breaker with the characteristics of convenient installation and replacement. It is usually used in low-voltage electrical systems and equipment. The pluggable design enables it to be easily inserted into and removed from the circuit. It is usually installed on a rail or fixed in the junction box of the equipment. A pluggable circuit breaker generally consists of two parts: a base and a module. The base is fixed on the electrical equipment or power distribution cabinet, and the circuit breaker body is a pluggable module. The modular structure makes the replacement or upgrade of the circuit breaker simple and fast, without the need for major modifications to the entire circuit. Like traditional circuit breakers, a pluggable circuit breaker is also equipped with an electromagnet or a thermal trigger inside to detect abnormal current and cut off the circuit. The design of the triggering mechanism ensures that the circuit breaker can quickly respond to overload and short-circuit situations, ensuring the safety of the circuit and equipment.

[0003] In the prior art, this design enables the circuit breaker to be quickly replaced or installed, but there are still the following problems. When wiring the existing pluggable circuit breaker, the staff needs to insert multiple input wires into the designated positions, and then fix them in place one by one with a screwdriver to complete the wiring. When it is necessary to disconnect the wires, a screwdriver is also required to disconnect the wires one by one. Moreover, when inserting the input wires into the wiring holes, it is necessary to hold them by hand to prevent them from falling off, which affects the normal operation of the staff. At the same time, in the design and manufacturing process of a conventional integrated and diversified function circuit breaker, the conventional prior art means cannot achieve thorough high integration and simplicity, and cannot reduce the occupied space of the device. For the switching control between manual on-off and automatic on-off, it is not simple, clear, and obvious enough. At the same time, during the execution of each function, the convenience is insufficient, and modular fast function switching cannot be adopted to increase or decrease functions. Moreover, the adaptability of the device to the actual use scenario is relatively weak. Summary of the Invention

[0004] In view of the problems in the prior art, such as the need for multiple wiring operations, the switching control between manual on-off and automatic on-off not being simple and clear enough, and the modular function switching not being fast enough, a modular pluggable circuit breaker is proposed.

[0005] The present application provides a modular pluggable circuit breaker, and its purpose is as follows: by setting up a wiring unit, it enables the staff to wire multiple input wires simultaneously during wiring and can also disassemble multiple input wires simultaneously. The operation is simple and fast. The module can be plugged and unplugged, and the overall function setting is convenient and simple. It can add function modules modularly according to different usage scenario requirements. If a function module is damaged, the modular circuit board can be replaced by direct plugging and unplugging, which improves the efficiency of maintenance and replacement. At the same time, to a great extent, it reduces the maintenance time and material cost of the overall device during use. By setting a micro motion recognition switch, it can integrally and concisely integrate the combination of manual on-off and automatic on-off. This structural setting can clearly distinguish what control state (manual / automatic) the circuit breaker system is in.

[0006] The technical solution of the present invention is: a modular pluggable circuit breaker, including an insulating base, a wiring housing arranged on the insulating base, and a wiring unit arranged on the wiring housing. The wiring unit includes a wiring component and a fixing component arranged on the wiring housing.

[0007] The multi-wiring component includes a plurality of wiring holes opened on the wiring housing, a plurality of wiring grooves opened on the insulating base, a plurality of nuts rotatably arranged inside the plurality of wiring holes, a screw rod arranged at the lower end of the plurality of nuts, a lifting rod threadedly arranged on the screw rod, an upper clamping plate arranged at the lower end of the screw rod, a limiting groove opened at the lower end of the lifting rod, a limiting plate slidably arranged in the limiting groove, a fixing spring arranged on the limiting plate, and a lower clamping plate arranged at the upper end of the fixing spring.

[0008] A limiting component is installed between the lifting rod and the limiting plate, a transmission component is installed between the corresponding plurality of nuts, a pentagonal groove is opened at the upper end of each of the plurality of nuts, the lifting rod is in a "mouth" shape, the lower surface of the upper clamping plate and the upper surface of the lower clamping plate are both arc-shaped and matched, the lifting rod is located in the wiring groove, and a plugging and unplugging component and a switching component are installed on the wiring housing.

[0009] Further, the limiting component includes threaded grooves opened on the side walls of the limiting plate and the lifting rod, a fixing rod threadedly arranged in the two threaded grooves, and a turning knob arranged at one end of the fixing rod.

[0010] Further, the transmission component includes transmission wheels arranged on the plurality of nuts and a transmission belt arranged between the corresponding plurality of transmission wheels.

[0011] Furthermore, the fixing component includes square grooves formed on both sides of the inner wall of the lifting rod, two fixing blocks slidably arranged in the square grooves, telescopic springs arranged between the side walls of the square grooves and the fixing blocks, connecting ropes arranged at one ends of the two fixing blocks, the connecting ropes hermetically and slidably penetrating through the side wall of the lifting rod, chamfers arranged at one ends of the two fixing blocks, and the fixing springs being in a compressed state.

[0012] Furthermore, the plugging and unplugging component includes a plurality of jacks formed on the side of the wiring housing, plug rods arranged in the jacks, and a modular function control end arranged between the plurality of plug rods.

[0013] Furthermore, the switching component includes a manual handle arranged on the modular function control end, a microswitch base arranged on the wiring housing, a micro recognition switch arranged on the microswitch base, a pluggable communication module arranged on the modular function control end, and a controller arranged inside the modular function control end.

[0014] Furthermore, a function control panel is arranged on the modular function control end, a cover plate is rotatably arranged on the modular function control end, and the pluggable communication module is located inside the cover plate.

[0015] Advantages of the present invention:

[0016] 1. By providing the wiring unit, it enables the staff to wire multiple input wires simultaneously during wiring, and when it is necessary to remove the wires, it can complete the removal of multiple input wires simultaneously without operating them one by one with tools, reducing the workload and improving work efficiency. At the same time, when it is necessary to replace one of the input wires, the single input wire can be disassembled and replaced through the limiting component, with strong practical functionality.

[0017] 2. Since the inside of the modular control end is set for secondary wiring and contains a hierarchical control circuit board, during the use of the entire circuit breaker, if a function module is damaged, the modular circuit board can be replaced directly by plugging and unplugging, improving the efficiency of maintenance and replacement. At the same time, to a great extent, it reduces the maintenance time and material cost during the use of the overall device. The design of this device fully considers the maintenance cost and convenience during later use. For faults occurring in some modular areas, if the faults cannot be eliminated in time on-site, the local modular function circuit board can be replaced first and then fault analysis can be carried out, improving the use convenience of the product.

[0018] 3. By setting the micro-motion recognition switch, the integration of manual opening / closing and automatic opening / closing can be completed simply and concisely. This structure can clearly distinguish what control state the circuit breaker system is in (manual / automatic). As long as the micro-motion recognition switch is disengaged from the handle, the automatic opening / closing system is in the closed state. When the micro-motion recognition switch is in contact with the handle, the circuit breaker system is in the automatic opening / closing control state at this time. At the same time, this logical setting can avoid the situation where when manual opening / closing is required, the operation cannot be normally executed due to the loss of the manual handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic perspective structure view of the first perspective of the present invention;

[0020] Figure 2 is a schematic structure view of the present invention with the insulating base removed;

[0021] Figure 3 is a schematic structure view of the wiring unit of the present invention;

[0022] Figure 4 is of the present invention Figure 3 partial sectional plan view;

[0023] Figure 5 is of the present invention Figure 4 schematic perspective structure view;

[0024] Figure 6 is a schematic internal structure view of the wiring housing of the present invention;

[0025] Figure 7 is a schematic structure view of the microswitch base of the present invention;

[0026] Figure 8 is of the present invention Figure 1 exploded structure view;

[0027] Figure 9 is a schematic working process view of the micro-motion recognition switch of the present invention.

[0028] In the figure:

[0029] 1. Insulating base; 2. Wiring housing; 3. Wiring hole; 4. Wiring groove; 5. Nut; 6. Screw rod; 7. Lifting rod; 8. Upper clamping plate; 9. Limiting groove; 10. Limiting plate; 11. Fixed spring; 12. Lower clamping plate; 13. Fixed rod; 14. Rotary knob; 15. Driving wheel; 16. Transmission belt; 17. Square groove; 18. Fixed block; 19. Telescopic spring; 20. Connecting rope; 21. Insertion rod; 22. Modular function control end; 23. Manual handle; 24. Microswitch base; 25. Micro-motion recognition switch; 26. Plug-in communication module; 27. Function control panel; 28. Cover plate; 29. Jack. Detailed implementation manners

[0030] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings of the specification.

[0031] Example 1. Refer to Figure 1 - Figure 3 This is the first embodiment of the present invention, which provides a modular pluggable circuit breaker, including an insulating base 1, a wiring housing 2 fixedly installed on the insulating base 1, a wiring unit installed on the wiring housing 2, and the wiring unit includes a wiring component and a fixing component installed on the wiring housing 2; the multi-wiring component includes a plurality of wiring holes 3 opened on the wiring housing 2, a plurality of wiring grooves 4 opened on the insulating base 1, a plurality of nuts 5 rotatably installed inside the plurality of wiring holes 3, a screw rod 6 fixedly installed at the lower end of the plurality of nuts 5, a lifting rod 7 threadedly installed on the screw rod 6, an upper clamping plate 8 rotatably installed at the lower end of the screw rod 6, a limiting groove 9 opened at the lower end of the lifting rod 7, a limiting plate 10 slidably installed in the limiting groove 9, a fixing spring 11 fixedly installed on the limiting plate 10, and a lower clamping plate 12 fixedly installed at the upper end of the fixing spring 11; a limiting component is installed between the lifting rod 7 and the limiting plate 10, a transmission component is installed between the corresponding plurality of nuts 5, a pentagonal groove is opened at the upper end of each of the plurality of nuts 5, the lifting rod 7 is in a "mouth" shape, the lower surface of the upper clamping plate 8 and the upper surface of the lower clamping plate 12 are both matching arcs, the lifting rod 7 is located in the wiring groove 4, and a plugging and unplugging component and a switching component are installed on the wiring housing 2.

[0032] Refer to Figure 4 and Figure 5 The limiting component includes threaded grooves opened on the side walls of the limiting plate 10 and the lifting rod 7, a fixing rod 13 threadedly installed in the two threaded grooves, and a rotary knob 14 fixedly installed at one end of the fixing rod 13. The transmission component includes transmission wheels 15 fixedly installed on the plurality of nuts 5, and a transmission belt 16 fixedly sleeved between the corresponding plurality of transmission wheels 15. The fixing component includes square grooves 17 opened on both sides of the inner wall of the lifting rod 7, two fixing blocks 18 slidably installed in the square grooves 17, a telescopic spring 19 fixedly installed between the side wall of the square groove 17 and the fixing blocks 18, a connecting rope 20 fixedly installed in the middle of one end of the two fixing blocks 18, the connecting rope 20 hermetically and slidably penetrates through the side wall of the lifting rod 7, one end of each of the two fixing blocks 18 is provided with a chamfer, and the fixing spring 11 is in a compressed state.

[0033] Specifically, the function of the wiring component is as follows: Connect multiple input wires to the plug-in circuit breaker, install the circuit breaker at the designated position and make it work. After the installer places the ports of the multiple input wires in the lifting rod 7 in the wiring slot 4, through the transmission component, only one nut 5 needs to be rotated. This realizes the connection of multiple input wires. At the same time, to prevent the input wires in the lifting rod 7 from falling off before the installer rotates the nut 5. After the worker places the input wires inside the lifting rod 7, by pulling the connecting rope 20, the corresponding two fixing blocks 18 slide inward, and the fixation of the lower clamping plate 12 is released. Since the fixing spring 11 is in a compressed state, the lower clamping plate 12 moves upward under the elastic force of the fixing spring 11. Through cooperation with the upper clamping plate 8, the input wire ports are clamped and fixed between the two, preventing the input wires from falling off during wiring. Similarly, when the worker needs to remove all the input wires, only one nut 5 needs to be rotated, and all the input wires can be removed simultaneously, effectively improving the work efficiency of the worker.

[0034] When the worker is performing maintenance and needs to replace one of the input wires separately, only the fixing rod 13 on the corresponding lifting rod 7 needs to be removed, and then one of the input wires can be removed. By rotating the corresponding knob 14, after the fixing rod 13 is removed, the fixing rod 13 releases the limit on the limiting plate 10, enabling the limiting plate 10 to slide downward. When the limiting plate 10 slides downward, the lower clamping plate 12 is in a loose state. At this time, the worker can easily remove and replace one input wire separately.

[0035] During use, when the installer needs to install the plug-in circuit breaker in the designated circuit, place multiple input wires in the middle of the lifting rod 7 in the wiring slot 4, and then pull the corresponding connecting rope 20, so that the connecting rope 20 slides the corresponding two fixing blocks 18 in the square slot 17 and releases the fixed limit on the lower clamping plate 12, enabling the lower clamping plate 12 to move upward under the elastic force of the fixing spring 11 and clamp and fix the corresponding input wires, preventing them from falling off during the wiring process;

[0036] When multiple input wires are clamped and fixed in the corresponding lifting rods 7, the staff only needs to rotate one of the nuts 5. The nut 5 drives each nut 5 to rotate simultaneously through the transmission wheel 15 and the transmission belt 16. During the rotation of the nut 5, since the wiring groove 4 limits the lifting rod 7, the lifting rod 7 cannot rotate with the screw rod 6. When the screw rod 6 rotates, it will drive the lifting rod 7 to rise. When the lifting rod 7 rises, it will drive the lower clamping plate 12 at the lower end to move synchronously. When the lower clamping plate 12 and the upper clamping plate 8 move close enough, the input wire port is clamped and fixed between them, and then multiple input wires are connected to the plug-in circuit breaker to complete the wiring. Similarly, when the staff needs to remove the input wires, they only need to rotate one of the nuts 5 to complete the removal of multiple input wires at the same time;

[0037] When the staff needs to remove and replace one of the input wires, they only need to rotate the corresponding knob 14 to remove the corresponding fixing rod 13 from the lifting rod 7 and the limiting plate 10, thereby releasing the fixed limit on the limiting plate 10, enabling the limiting plate 10 to slide vertically in the limiting groove 9. While sliding, the limiting plate 10 releases the acting force on the lower clamping plate 12, making the lower clamping plate 12 in a loose state, and further reducing the clamping force of the lower clamping plate 12 on the input wire, so that the staff can easily remove and replace the input wire.

[0038] Embodiment 2, refer to Figure 1 - Figure 2 and Figure 7 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the plug-in component includes a plurality of jacks 29 opened on the side of the wiring housing 2, plug rods 21 inserted and installed in the jacks 29, and a modular function control end 22 fixedly installed between the plurality of plug rods 21.

[0039] Specifically, the modular function control terminal 22 is installed on the wiring housing 2 in a pluggable manner. There is a secondary wiring part inside the modular function control terminal 22, and the module of the secondary wiring part can be replaced individually (the module can be plugged and unplugged), making the overall function setting convenient and simple. The functions can be modularly added according to different usage scenario requirements. There is a pluggable module for carrier communication on the modular function control terminal 22. The inside of this modular function control terminal 22 is set for secondary wiring and contains a hierarchical control circuit board. During the use of the entire circuit breaker, if a function module is damaged, the modular circuit board can be replaced by direct plugging and unplugging, improving the efficiency of maintenance and replacement. At the same time, to a great extent, it reduces the maintenance time and material costs of the overall device during use. Particularly, by adopting the hierarchical circuit board wiring method, the number of secondary wiring and welding can be greatly reduced, thus greatly improving the wiring and installation efficiency of the circuit board. In addition, the hierarchical modular circuit board design is adopted, and this design scheme can greatly reduce the subsequent usage costs of users. Compared with the previous conventional devices, it won't be necessary to replace the entire device just because of internal local failures (such as problems related to screen display, damage of some circuit boards, etc.), which will result in high equipment usage costs and is not conducive to maintenance and repair. The design of this device fully considers the maintenance costs and convenience in later use. For faults occurring in some modular areas, if the faults cannot be eliminated in time on-site, the local modular function circuit board can be replaced first and then fault analysis can be carried out, improving the usage convenience of the product.

[0040] The remaining structure is the same as that of Embodiment 1.

[0041] Embodiment 3, referring to Figure 6 - Figure 9 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the switching component includes a manual handle 23 rotatably installed on the modular function control terminal 22, a microswitch base 24 fixedly installed on the wiring housing 2, a microswitch recognition switch 25 rotatably installed on the microswitch base 24, a pluggable communication module 26 snap-fitted on the modular function control terminal 22, and a controller is provided inside the modular function control terminal 22. There is a function control panel 27 on the modular function control terminal 22, a cover plate 28 is rotatably arranged on the modular function control terminal 22, and the pluggable communication module 26 is located inside the cover plate 28.

[0042] Specifically, among the currently existing circuit breakers, there are manual opening / closing and automatic control opening / closing. The conventional method is that in order to ensure that the manual opening / closing and automatic control opening / closing do not interfere with each other during their respective implementation processes, independent layout and installation are carried out in terms of settings. During the process of manual opening / closing, the automatic control opening / closing must be independently disconnected, and then the manual opening / closing operation can be fully executed. This is to avoid conflicts during the implementation of the two-action systems, which may damage the gear transmission structure inside the circuit breaker. Based on the existing conventional technical layouts on the market, this product is developed and designed from the actual application perspective, and is designed into a structure that can integrate the implementation of automatic and manual opening / closing: As shown in the figure below, a microswitch base 24 is provided below the end of the manual handle 23. On the microswitch base 24, a microswitch recognition switch 25 is provided. When the circuit breaker is in the state of automatic control opening / closing, the end of the manual handle 23 needs to be in contact with the microswitch recognition switch 25, and then the entire execution system of the circuit breaker is in the automatic opening / closing control state. When the manual handle 23 is taken out and separated from the contact with the microswitch recognition switch 25, the circuit breaker is then in the manual opening / closing control state. At this time, correspondingly, the end of the manual handle 23 is inserted into the handle rotation shaft hole and rotated to perform manual opening / closing. The technical advantages of this structural design are: it can completely and concisely integrate the combination of manual opening / closing and automatic opening / closing. This structural setting can clearly distinguish what control state (manual / automatic) the circuit breaker system is in. As long as the microswitch recognition switch 25 is separated from the contact with the handle, the automatic opening / closing system is in the closed state. When the microswitch recognition switch 25 is in contact with the handle, the circuit breaker system is then in the automatic opening / closing control state. At the same time, this logical setting can avoid the situation where the normal operation cannot be executed due to the loss of the manual handle 23 when manual opening / closing is required.

[0043] The rest of the structure is the same as that of Embodiment 2.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A modular pluggable circuit breaker, comprising an insulating base and a wiring housing disposed on the insulating base, characterized in that: A wiring unit is provided on the wiring housing, and the wiring unit includes a wiring component and a fixing component provided on the wiring housing; The wiring component includes a plurality of wiring holes opened on the wiring housing, a plurality of wiring grooves opened on the insulating base, a plurality of nuts rotatably arranged inside the plurality of wiring holes, a screw rod provided at the lower end of the plurality of nuts, a lifting rod threadedly arranged on the screw rod, an upper clamping plate provided at the lower end of the screw rod, a limiting groove opened at the lower end of the lifting rod, a limiting plate slidably arranged in the limiting groove, a fixing spring provided on the limiting plate, and a lower clamping plate provided at the upper end of the fixing spring; A limiting component is installed between the lifting rod and the limiting plate, a transmission component is installed between the corresponding plurality of nuts, a pentagonal groove is opened at the upper end of each of the plurality of nuts, the lifting rod is in a "mouth" shape, the lower surface of the upper clamping plate and the upper surface of the lower clamping plate are both matching arcs, the lifting rod is located in the wiring groove, and a plugging component and a switching component are installed on the wiring housing; The fixing component includes square grooves opened on both sides of the inner wall of the lifting rod, two fixing blocks slidably arranged in the square grooves, a telescopic spring provided between the side wall of the square groove and the fixing blocks, a connecting rope provided at one end of the two fixing blocks, the connecting rope hermetically and slidably penetrates through the side wall of the lifting rod, and one end of each of the two fixing blocks is provided with a chamfer, and the fixing spring is in a compressed state.

2. The modular plug-in circuit breaker according to claim 1, wherein: The limiting component includes threaded grooves opened on the side walls of the limiting plate and the lifting rod, a fixing rod threadedly arranged in the two threaded grooves, and a rotary knob provided at one end of the fixing rod.

3. The modular pluggable circuit breaker according to claim 1, wherein: The transmission component includes transmission wheels provided on the plurality of nuts, and a transmission belt provided between the corresponding plurality of transmission wheels.

4. The modular plug-in circuit breaker according to claim 1, characterized in that: The plugging component includes a plurality of jacks opened on the side edge of the wiring housing, plug rods provided in the jacks, and a modular function control end provided between the plurality of plug rods.

5. The modular pluggable circuit breaker according to claim 4, characterized in that: The switching component includes a manual handle provided on the modular function control end, a microswitch base provided on the wiring housing, a micro recognition switch provided on the microswitch base, a pluggable communication module provided on the modular function control end, and a controller is provided inside the modular function control end.

6. The modular pluggable circuit breaker according to claim 5, wherein: A function control panel is provided on the modular function control end, a cover plate is rotatably arranged on the modular function control end, and the pluggable communication module is located inside the cover plate.

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