TWI698897B - Display structure of opening and closing and tripping of small circuit breaker - Google Patents

Abstract

A display structure for opening, closing and tripping of a miniature circuit breaker is applied to a miniature circuit breaker. The miniature circuit breaker includes a bottom plate, an upper cover, a handle, and a spring shaft, a mechanism component, a reset component, a quick-action connecting rod, A contact element and a coil assembly are both installed in the bottom plate; the mechanism assembly includes a support shaft, a support seat, a movable sub-fixing plate, a movable element and a tension spring; the return assembly includes a return rod, a The upper link, a U-shaped link, and a jumper rod; the quick-drop link has a joint, which is sleeved in the groove on the handle; the contactor corresponds to the end of the movable member, and is provided with a contact Point; the coil assembly includes an iron core and a coil; the opening and closing and tripping display structure of the miniature circuit breaker includes: a window arranged on the upper part of the bottom plate, a display board installed in the bottom plate, and with the upper The connecting rods offset.

Description

Switching and tripping display structure of miniature circuit breaker

The invention relates to a circuit breaker, in particular to a display structure for opening, closing and tripping of a small circuit breaker.

Miniature circuit breakers can be applied to the main switch and sub-current control switch used on the wiring. It is an important component for protecting electrical appliances. It is mainly used for short-circuit protection and preventing serious overload. Motor load line protection on industrial machines will also be specified Use the circuit breaker as one of the protection devices. When the circuit breaker detects short circuit, leakage or serious overload, the circuit breaker can immediately trip to protect the circuit and electrical appliances.

As shown in Figure 1, the conventional miniature circuit breaker includes a bottom plate 80, a handle 81, a support seat 82, a movable member 83, a main fulcrum 84, a return rod 85, a return torsion spring 86, and one or two alloy plates 87 , A contact 88 and a contact 89, the handle 81 is pivoted on the bottom plate 80, the supporting seat 82 and the movable member 83 are combined with the bottom plate 80, and sleeved on the main fulcrum 84. After the return rod 85 and the return torsion spring 86 are combined, they are sleeved on a fulcrum (not shown in the figure) of the support seat 82. The contact 88 is connected to the bottom plate 80, and the contact 89 is arranged on the contact 88.

The conventional miniature circuit breaker cannot be judged from the outside whether it is artificially disconnected or the circuit is faulty. If the circuit breaker cannot automatically open the circuit due to a distribution line accident, at this time, if you use the operating handle to forcefully break the circuit breaker When electricity, it is easy to cause electric shock accidents due to wrong judgments.

Based on the above reasons, there is still room for improvement in the conventional technology. In view of this, the present inventors actively researched and developed the present invention after years of experience in related product research and development, and after continuous testing and improvement.

The main purpose of the present invention is to provide a display structure for opening, closing and tripping of a miniature circuit breaker, which can clearly display whether the circuit breaker is artificially disconnected or a circuit failure state, so as to ensure personal safety.

In order to achieve the above-mentioned object, the present invention provides a switch and trip display structure for a miniature circuit breaker, which is applied to a miniature circuit breaker. On the bottom plate and adjacent to the upper cover, a spring shaft is arranged in the bottom plate, and a mechanism component, a return component, a quick-acting link, a contactor and a coil component are all installed in the bottom plate; the mechanism component includes There is a supporting shaft, a supporting seat and a movable sub-fixing plate are pivotally combined, and after the combination, the supporting seat is sleeved on the supporting shaft, a movable element is fixed to the lower end of the movable sub-fixing plate, and one end of a tension spring is fixed to On the spring shaft of the bottom plate, the other end is fixed on the movable sub-fixing plate; the resetting assembly includes a resetting rod, an upper connecting rod is arranged on the support seat and contacting the resetting rod at the same time, and one end of a U-shaped connecting rod It is sleeved on the handle, the other end is sleeved on the upper link, one end of a jumper rod is set in the bottom plate, and the other end is sleeved on the return rod; the quick-drop link has a joint part, and the joint part covers Is connected to the groove on the handle; the contact is provided with a contact, and the contact is set corresponding to the end of the mover, so that the mover and the contact can abut each other; the coil assembly includes an iron core , A coil is arranged outside the core.

The opening, closing and tripping display structure of the miniature circuit breaker includes: a window, Placed on the upper part of the bottom plate, a display board is installed in the bottom plate and abuts against the upper connecting rod.

In order to make the purpose, features and advantages of the present invention easier to understand by those with ordinary knowledge in the field, a preferred embodiment is given below in conjunction with the accompanying drawings and described in detail as follows.

(this invention)

10‧‧‧Bottom plate

11‧‧‧Top cover

12‧‧‧Handle

13‧‧‧Spring shaft

20‧‧‧Mechanical components

21‧‧‧Support axis

22‧‧‧Support seat

23‧‧‧Movable fixed plate

24‧‧‧Movable

25‧‧‧tension spring

30‧‧‧Return components

31‧‧‧Return lever

32‧‧‧Upper link

33‧‧‧U-shaped connecting rod

34‧‧‧Jump lever

40‧‧‧Quick Shot Link

41‧‧‧Joint

50‧‧‧Contact

51‧‧‧Contact

60‧‧‧Coil assembly

61‧‧‧Iron Heart

62‧‧‧Coil

70‧‧‧Window

71‧‧‧Display Board

(Related Technology)

80‧‧‧Bottom plate

81‧‧‧Handle

82‧‧‧Support seat

83‧‧‧Movable

84‧‧‧Main pivot

85‧‧‧Return lever

86‧‧‧Return torsion spring

87‧‧‧Two alloy plates

88‧‧‧Contact

89‧‧‧Contact

Figure 1 is a perspective view of the conventional technology.

Figure 2 is a three-dimensional exploded view of the bottom plate and upper cover of the miniature circuit breaker.

Figure 3 is an exploded perspective view of the miniature circuit breaker.

Fig. 4 is a three-dimensional schematic diagram of the opening and closing and tripping display structure of the miniature circuit breaker of the present invention in the ON state.

Fig. 5 is a three-dimensional schematic diagram of the opening and closing and tripping display structure of the miniature circuit breaker of the present invention in the trip state.

Please refer to Figures 2 to 3. Figure 2 is a perspective exploded view of the bottom plate and upper cover of the miniature circuit breaker, and Figure 3 is a perspective exploded view of the miniature circuit breaker. The present invention relates to a switch and trip display structure of a miniature circuit breaker, which is applied to a miniature circuit breaker. The miniature circuit breaker includes a bottom plate 10, an upper cover 11 is combined with the bottom plate 10, and a handle 12 is pivoted on the bottom plate 10 On and adjacent to the upper cover 11, a spring shaft 13 is arranged in the bottom plate 10, a mechanism assembly 20, a return assembly 30, a quick-action link 40, a contact 50 and a coil assembly 60 are all installed in the In the bottom plate 10.

The mechanism assembly 20 includes a supporting shaft 21, a supporting seat 22 and a movable sub-fixing plate 23 are pivotally connected to each other, and the supporting seat 22 is sleeved on the supporting shaft 21 after the combination, and a movable The sub 24 is fixed to the lower end of the movable sub-fixing plate 23, one end of a tension spring 25 is fixed to the spring shaft 13 of the bottom plate 10, and the other end is fixed to the movable sub-fixing plate 23.

The resetting assembly 30 includes a resetting rod 31, an upper connecting rod 32 is arranged on the support base 22 and contacting the resetting rod 31 at the same time, and a U-shaped connecting rod 33 is sleeved on the handle 12 at one end and sleeved at the other end On the upper connecting rod 32, one end of a jumper rod 34 is disposed in the bottom plate 10, and the other end is sleeved on the return rod 31.

The quick-shooting link 40 has a joint 41 which is sleeved in the groove on the handle 12.

The contact 50 is provided with a contact point 51 corresponding to the end of the movable element 24 so that the movable element 24 and the contact point 51 can abut against each other.

The coil assembly 60 includes an iron core 61, and a coil 62 is disposed outside the iron core 61.

The opening, closing and tripping display structure of the miniature circuit breaker includes a window 70 arranged on the upper part of the bottom plate 10, and a display board 71 is installed in the bottom plate 10 and abuts against the upper link 32.

Please refer to FIG. 4 to FIG. 5. FIG. 4 is a three-dimensional schematic diagram of the present invention in an ON state, and FIG. 5 is a three-dimensional schematic diagram of the present invention in a tripped state, and please refer to FIG. 2 simultaneously. When the miniature circuit breaker is in the OFF state, one end of the upper link 32 is located at the corresponding position of the window 70, that is, the closed state is displayed, as shown in FIG. 2. When the handle 12 is pushed by an external force, the U-shaped link 33 is linked and the upper link 32 is driven to engage the reset rod 31, and the mechanism assembly 20 is driven to rotate clockwise to reach the open state (ON), and the reset rod 31 One end is located at the corresponding position of the window 70, that is, the open state is displayed, as shown in FIG. 4. When excited by a large current, the core 61 pushes the return rod 31, or It is the trip lever 34 that pulls the reset rod 31 to make the reset rod 31 rotate counterclockwise, so that the reset rod 31 is separated from the upper link 32 to reach a tripped state, during which the upper link 32 rotates counterclockwise , And move the display panel 71 to the corresponding position of the window 70, that is, the trip state is displayed, as shown in FIG. 5. Then, the display board 71 is moved back to the original position with one end of the support base 22 to move it away from the position of the window 70 and return to the open state (ON).

In summary, with the opening and closing and tripping display structure of the miniature circuit breaker of the present invention, it is possible to clearly display whether the circuit breaker is artificially disconnected or the state of the circuit failure to ensure personal safety.

The above-mentioned embodiments are merely examples for the convenience of description, and the scope of rights claimed in the present invention should be subject to the scope of the patent application, rather than being limited to the above-mentioned embodiments.

Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the present invention. Anyone familiar with this technology can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be subject to the scope of the attached patent application.

10‧‧‧Bottom plate

12‧‧‧Handle

13‧‧‧Spring shaft

20‧‧‧Mechanical components

21‧‧‧Support axis

22‧‧‧Support seat

23‧‧‧Movable fixed plate

24‧‧‧Movable

25‧‧‧tension spring

30‧‧‧Return components

31‧‧‧Return lever

32‧‧‧Upper link

33‧‧‧U-shaped connecting rod

34‧‧‧Jump lever

40‧‧‧Quick Shot Link

41‧‧‧Joint

50‧‧‧Contact

51‧‧‧Contact

60‧‧‧Coil assembly

61‧‧‧Iron Heart

62‧‧‧Coil

70‧‧‧Window

71‧‧‧Display Board

Claims (3)

A display structure for opening, closing and tripping of a miniature circuit breaker is applied to a miniature circuit breaker. The miniature circuit breaker includes a bottom plate, an upper cover is combined with the bottom plate, a handle is pivoted on the bottom plate and adjacent to the upper cover, and a spring The shaft is arranged in the bottom plate, and a mechanism component, a return component, a quick throw connecting rod, a contactor and a coil component are all installed in the bottom plate; the mechanism component includes a support shaft, a support seat and a The movable sub-fixing plate is pivotally connected, and after the combination, the supporting seat is sleeved on the supporting shaft, a movable element is fixed to the lower end of the movable sub-fixing plate, one end of a tension spring is fixed to the spring shaft of the bottom plate, and the other end Fixed on the movable sub-fixing plate; the resetting assembly includes a resetting rod, an upper connecting rod is arranged on the support seat, and at the same time in contact with the resetting rod, one end of a U-shaped connecting rod is sleeved on the handle, and the other end It is sleeved on the upper link, one end of a jumper rod is set in the bottom plate, and the other end is sleeved on the return rod; the quick-drop link has a joint part which is sleeved on the concave on the handle In the slot; the contact is provided with a contact, and the contact is set corresponding to the end of the movable, so that the movable and the contact can abut each other; and the coil assembly includes an iron core and a coil set On the outside of the iron core; the opening and closing and tripping display structure of the miniature circuit breaker includes: a window arranged on the upper part of the bottom plate, a display panel installed in the bottom plate and abutting against the upper connecting rod, the upper connecting rod One end of the rod is located at the corresponding position of the window, which means that the circuit breaker is in the closed state (OFF). In the opening, closing and tripping display structure of the miniature circuit breaker described in claim 1, when the handle is pushed by an external force, the U-shaped link is linked and the upper link is driven to engage the reset rod, driving the mechanism assembly clockwise Rotate to reach the open state (ON), one end of the reset lever is located at the corresponding position of the window, The open status is displayed. For the opening, closing and tripping display structure of the miniature circuit breaker described in claim 1, when excited by a large current, the iron core pushes the reset lever, or the trip lever pulls the reset lever to make the reset lever rotate counterclockwise , The reset lever is disengaged from the upper link to reach the tripped state. During the process, the upper link rotates counterclockwise, and the display board is moved to the corresponding position of the window to display the tripped state.

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