CN215731533U

CN215731533U - Intelligent circuit breaker capable of displaying opening and closing states

Info

Publication number: CN215731533U
Application number: CN202121479030.7U
Authority: CN
Inventors: 龚明才; 徐波; 李军; 李佳
Original assignee: Zhejiang Minghui Intelligent Electric Co ltd
Current assignee: Zhejiang Minghui Intelligent Electric Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-02-01
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses an intelligent circuit breaker capable of displaying opening and closing states, which comprises an upper shell and a lower shell, the lower shell is provided with a rotating frame, the rotating frame is provided with a moving contact, the lower shell also comprises a display mechanism arranged above the rotating frame, the display mechanism comprises a fixed bottom plate, the fixed bottom plate is connected with the upper shell, a connecting side plate is arranged on the fixed bottom plate, the connecting side plate is rotatably connected with a swing rod, the fixed bottom plate is provided with a movable hole, the swing rod passes through the movable hole and is movably connected with the movable hole, a display panel is arranged on the top end of the swing rod, an inclined contact surface is arranged on the rotating frame, an arc surface which is abutted against the contact surface is arranged at the bottom end of the swing rod, a return spring is arranged between the fixed bottom plate and the swing rod, the display mechanism is simple in structure and reliable in performance, and a user can intuitively know the opening and closing conditions of the circuit breaker.

Description

Intelligent circuit breaker capable of displaying opening and closing states

Technical Field

The utility model belongs to the field of intelligent circuit breakers, and particularly relates to an intelligent circuit breaker capable of displaying a switching-on/off state.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition for a predetermined time. The circuit breaker has overload, short circuit and under-voltage protection functions, can protect lines and power supply equipment from being damaged, and can protect fire hazards possibly caused by long-term grounding faults which cannot be detected by overcurrent protection. The existing circuit breaker is provided with a switching-on/off indicating mechanism, and a user can distinguish the switching-on/off state of the circuit breaker by observing an indicating plate on the switching-on/off indicating mechanism. However, the existing switching-on and switching-off indicating mechanism has the defects of unreasonable structural design, complex structure, inaccurate switching-on and switching-off indication and unreliable performance, and cannot enable a user to know the switching-on and switching-off condition inside the circuit breaker in time.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the intelligent circuit breaker capable of displaying the opening and closing states, which is provided with the display mechanism with simple structure and reliable performance, and a user can know the opening and closing conditions of the circuit breaker in time.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an intelligent circuit breaker that can show divide-shut brake state, includes casing and lower casing, be provided with the rotating turret on the casing down, be provided with the moving contact on the rotating turret, still including setting up the display mechanism in the rotating turret top, display mechanism includes PMKD, and PMKD is connected with last casing, the last connection curb plate that is provided with of PMKD, rotate on the connection curb plate and be connected with the swinging arms, be provided with the activity hole on the PMKD, the swinging arms pass the activity hole and with activity hole swing joint, be provided with the display panel on the top of swinging arms, be provided with the contact surface of slope on the rotating turret, the bottom of swinging arms is provided with the arcwall face inconsistent with the contact surface, be provided with reset spring between PMKD and the swinging arms.

Furthermore, a fixed block is arranged on the fixed bottom plate, the fixed block is located on one side of the swing rod in the rotation direction, the reset spring is located between the fixed block and the swing rod, and two ends of the reset spring are respectively connected with the fixed block and the swing rod.

Furthermore, a first fixing pin is arranged on the fixing block, a second fixing pin is arranged on the swinging rod, and two ends of the reset spring are respectively sleeved on the first fixing pin and the second fixing pin.

Further, be provided with the switch mounting panel on the PMKD, be provided with micro-gap switch on the switch mounting panel, be provided with the touch piece on the micro-gap switch, be provided with the swing piece that corresponds the touch piece on the swinging arms, micro-gap switch and fixed block are located the both sides of swinging arms respectively.

Further, two clamping blocks are arranged on the switch mounting plate, and the micro switch is fixed between the two clamping blocks.

Compared with the prior art, the utility model has the beneficial effects that: the fixed bottom plate is fixed on the upper shell, the swing rod is installed to enable the swing rod to be abutted to the rotating frame on the lower shell, the reset spring is installed between the fixed bottom plate and the swing rod, when the rotating frame rotates to conduct switching-on or switching-off, the swing rod can be enabled to rotate on the connecting side plate through the rotating frame and the reset spring, the swing amplitude of the swing rod is limited through the movable hole, the switching-on and switching-off conditions of the circuit breaker can be displayed through the swing of the display panel, a user can visually know the switching-on and switching-off conditions of the circuit breaker, and the display mechanism is simple in structure and reliable in performance.

Drawings

Fig. 1 is an exploded schematic view of an intelligent circuit breaker of the present invention;

FIG. 2 is a schematic view of the connection between the turret and the display mechanism;

FIG. 3 is a schematic view showing the structure of the mechanism;

FIG. 4 is a schematic structural view of the fixing base;

FIG. 5 is a schematic view of the structure of the oscillating lever;

reference numerals: 11. an upper housing; 12. a lower housing; 2. a rotating frame; 201. a moving contact; 202. a contact surface; 3. a display mechanism; 301. fixing the bottom plate; 302. connecting the side plates; 303. a swing lever; 304, a movable hole; 305. a display panel; 306. an arc-shaped surface; 307. a return spring; 308. a fixed block; 309. a first fixing pin; 310. a second fixing pin; 311. a switch mounting plate; 312. a microswitch; a touch piece 314; 315. a swing block; 316. a clamping block; 317. positioning pins; 319. a friction projection; an evacuation slot.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the utility model, "a number" or "a number" means two or more unless explicitly specified otherwise.

The present invention is further explained with reference to fig. 1 to 5.

An intelligent circuit breaker capable of displaying the opening and closing states comprises an upper shell 11 and a lower shell 12, the lower shell 12 is provided with a rotating frame 2, the rotating frame 2 is provided with a moving contact 201, the lower shell further comprises a display mechanism 3 arranged above the rotating frame 2, the display mechanism 3 comprises a fixed bottom plate 301, the fixed bottom plate 301 is connected with the upper shell 11, a connecting side plate 302 is arranged on the fixed bottom plate 301, a swinging rod 303 is rotatably connected on the connecting side plate 302, a movable hole 304 is arranged on the fixed bottom plate 301, the swing lever 303 passes through the movable hole 304 and is movably connected with the movable hole 304, a display panel 305 is arranged on the top end of the swing lever 303, an inclined contact surface 202 is arranged on the rotating frame 2, the bottom end of the swing rod 303 is provided with an arc surface 306 which is abutted against the contact surface 202, and a return spring 307 is arranged between the fixed bottom plate 301 and the swing rod 303.

As shown in fig. 2, the display panel 305 is provided with at least two display areas, and different display identifiers can be respectively set in the display areas, and can be different Chinese characters for switching on and switching off, or represent different colors for switching on or switching off, which is beneficial for a user to know the switching-on and switching-off conditions of the current circuit breaker.

As shown in fig. 1 to 5, when the display mechanism 3 is mounted on the upper housing 11, the fixed bottom plate 301 is fixed on the upper housing 11 by screws, then one end of the swing rod 303 having the arc-shaped surface 306 passes through the movable hole 304, and is connected to the swing rod 303 and the connecting side plate 302, the swing rod 303 rotates on the connecting side plate 302, and finally the return spring 307 is mounted between the swing rod 303 and the fixed bottom plate 301, so that the mounting of the field display mechanism 3 can be completed.

As shown in fig. 2, when the circuit breaker is switched on or switched off (tripped), the rotating frame 2 on the lower housing 12 drives the moving contact 201 to contact or separate from the stationary contact on the lower housing 12, when the rotating frame 2 drives the movable contact 201 to rotate towards the fixed contact on the lower housing 12, the contact point between the contact surface 202 on the rotating frame 2 and the arc-shaped surface 306 moves downwards along with the rotation of the rotating frame 2, and the swing lever 303 is rotated by the elastic force of the return spring 307 in the opposite direction to the rotating frame 2, and when the rotating frame 2 is rotated by a certain angle, the contact surface 202 is separated from the arc surface 306, the swinging rod 303 continues to rotate under the action of the return spring 307 until the swinging rod 303 abuts against the inner wall of the movable hole 304, at this time, the rotating frame 2 just abuts against the movable contact 201 and the fixed contact, the process of closing the switch, that is, resetting, is completed, and at this time, the display panel 305 on the oscillating rod 303 displays the mark of closing the switch; when the brake is opened, the rotating frame 2 drives the contact 201 to be away from the fixed contact, in the rotating process of the rotating frame 2, the contact surface 202 of the rotating frame is enabled to be in contact with the arc-shaped surface 306 at the end part of the swinging rod 303 again, the swinging rod 303 is driven to rotate through the contact surface 202, the rotating direction of the swinging rod 303 is opposite to that of the rotating frame 2, the resetting spring 307 is compressed when the swinging rod rotates, the swinging rod 303 is enabled to rotate from one side of the movable hole 304 to the other side until the swinging rod abuts against the inner wall of the other side, the brake opening process is completed, and at the moment, the display panel 305 on the swinging rod 303 displays the identification of the brake opening.

The swing rod 303 automatically rotates along with the switching-on or switching-off of the circuit breaker through the rotating frame 2 and the reset spring 307, the display mark is changed in time along with the rotation of the swing rod 303, and a user can know the switching-on and switching-off conditions of the circuit breaker in time; the swing amplitude of the swing lever 303 is limited by the movable hole 304, so that the display panel 305 can accurately display the logo on the circuit breaker.

As shown in fig. 4, in the preferred embodiment, a fixed block 308 is disposed on the fixed base plate 301, the fixed block 308 is located on one side of the swing rod 303 in the rotation direction, the return spring 307 is located between the fixed block 308 and the swing rod 303, two ends of the return spring 307 are respectively connected to the fixed block 308 and the swing rod 303, one side of the return spring 307 is fixed by the fixed block 308, when the swing rod 303 rotates toward the fixed block 308, the return spring 307 between the fixed block 308 and the swing rod 303 can be compressed, and when the swing rod is closed, the compressed return spring 307 pushes the swing plate to rotate, thereby improving the compression and return efficiency of the return spring 307.

As shown in fig. 4 and 5, in the preferred embodiment, the fixed block 308 is provided with a first fixed pin 309, the swing lever 303 is provided with a second fixed pin 310, two ends of the return spring 307 are respectively sleeved on the first fixed pin 309 and the second fixed pin 310, and the first fixed pin 309 and the second fixed pin 310 prevent the end of the return spring 307 from moving when the return spring 307 extends and contracts, thereby affecting the compression effect of the return spring 307 and the return effect of the swing lever 303.

As shown in fig. 4, preferably, the fixing base is provided with a clearance groove 320, the clearance groove 320 is located between the fixing block 308 and the swing rod 303 and is close to the movable hole 304, and when the swing rod 303 rotates towards the fixing block 308, the second fixing pin 310 extends into the clearance groove 320, so as to prevent the second fixing pin 310 from abutting against the fixing base plate 301 and affecting the rotation of the swing rod 303.

As shown in fig. 3, it is preferable in this embodiment that a switch mounting plate 311 is disposed on the fixed base plate 301, a micro switch 312 is disposed on the switch mounting plate 311, a touch plate 314 is disposed on the micro switch 312, a swing block 315 corresponding to the touch plate 314 is disposed on the swing rod 303, the micro switch 312 and the fixed block 308 are respectively disposed on two sides of the swing rod 303, when the swing rod 303 rotates toward the micro switch 312, the swing block 315 is abutted to the touch plate 314, and the micro switch 312 can be touched, then the micro switch 312 transmits the opening and closing conditions of the circuit breaker to the controller through an electric signal, and the opening and closing conditions are notified to the user by the controller, so that the user can remotely know the opening and closing conditions of the circuit breaker.

As shown in fig. 4, in the preferred embodiment, two latch blocks 316 are disposed on the switch mounting plate 311, the micro switch 312 is fixed between the two latch blocks 316, the two latch blocks 316 are disposed up and down correspondingly, and the micro switch 312 can be fixed on the switch mounting plate 311 by the two latch blocks 316.

As shown in fig. 5, preferably, the switch mounting plate 311 is provided with a positioning pin 317, the micro switch 312 is provided with a positioning hole corresponding to the positioning pin 317, and the micro switch 312 is positioned between the two latches 316 through the cooperation of the positioning pin 317 and the positioning hole, so as to improve the mounting efficiency of the micro switch 312.

As shown in fig. 5, it is preferable that a friction protrusion 319 is provided on a side surface of the swing lever 303 facing the switch mounting plate 311, the friction protrusion 319 is in contact with the switch mounting plate 311, and when the swing lever 303 rotates, the friction protrusion 319 frictionally slides on a surface of the switch mounting plate 311, thereby damping the rotation of the swing lever 303, and when the swing lever 303 is displayed at rest, the friction protrusion 319 prevents the swing lever 303 from freely rotating, which affects the display effect of the display panel 305.

Preferably, the material of the swinging rod 303 is plastic.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides an intelligent circuit breaker that can show divide-shut brake state, includes casing and lower casing, be provided with the rotating turret down on the casing, be provided with the moving contact on the rotating turret, its characterized in that: still including setting up the display mechanism in the rotating turret top, display mechanism includes PMKD, and PMKD is connected with last casing, the last connection curb plate that is provided with of PMKD, rotate on the connection curb plate and be connected with the swinging arms, be provided with the activity hole on the PMKD, the swinging arms pass the activity hole and with activity hole swing joint, be provided with the display panel on the top of swinging arms, be provided with the contact surface of slope on the rotating turret, the bottom of swinging arms is provided with the arcwall face inconsistent with the contact surface, be provided with reset spring between PMKD and the swinging arms.

2. The intelligent circuit breaker capable of displaying switching-on and switching-off states according to claim 1, characterized in that: the fixed baseplate is provided with a fixed block, the fixed block is positioned on one side of the rotation direction of the oscillating rod, the reset spring is positioned between the fixed block and the oscillating rod, and two ends of the reset spring are respectively connected with the fixed block and the oscillating rod.

3. The intelligent circuit breaker capable of displaying switching-on and switching-off states according to claim 2, characterized in that: the fixed block is provided with a first fixed pin, the swinging rod is provided with a second fixed pin, and two ends of the reset spring are respectively sleeved on the first fixed pin and the second fixed pin.

4. The intelligent circuit breaker capable of displaying switching-on and switching-off states according to claim 3, characterized in that: the last switch mounting panel that is provided with of PMKD, be provided with micro-gap switch on the switch mounting panel, be provided with the touch piece on the micro-gap switch, be provided with the swing piece that corresponds the touch piece on the swinging arms, micro-gap switch and fixed block are located the both sides of swinging arms respectively.

5. The intelligent circuit breaker capable of displaying switching-on and switching-off states according to claim 4, characterized in that: the switch mounting plate is provided with two clamping blocks, and the micro switch is fixed between the two clamping blocks.