CN216487917U

CN216487917U - Operating mechanism and circuit breaker

Info

Publication number: CN216487917U
Application number: CN202122889483.3U
Authority: CN
Inventors: 王军军; 赵青; 杨娜
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-05-10
Anticipated expiration: 2031-11-23

Abstract

An operating mechanism and a circuit breaker relate to the technical field of low-voltage electrical appliances. The operating mechanism comprises a button, a switching-on and switching-off mechanism and a connecting rod positioned between the button and the switching-on and switching-off mechanism; the button is provided with two opposite side walls, one end of the button, which is close to the connecting rod, is provided with a hinge hole, the hinge hole is arranged between the two side walls in the middle, one end of the connecting rod is hinged with the button through the hinge hole, and the other end of the connecting rod is connected with the opening and closing mechanism; when the button moves in a driven mode, the connecting rod can drive the switching-on and switching-off mechanism to move so that the circuit breaker can be switched off or switched on. The circuit breaker comprises the operating mechanism. The operating mechanism can effectively improve the reliability of the operating mechanism in the opening and closing process.

Description

Operating mechanism and circuit breaker

Technical Field

The utility model relates to the technical field of low-voltage electrical appliances, in particular to an operating mechanism and a circuit breaker.

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 within a prescribed time. When faults such as electric leakage, overload, short circuit and the like occur in the system, the circuit breaker can quickly cut off a fault mechanism in the system or cut off the power supply of the whole power supply so as to prevent the fault from being enlarged and avoid causing huge economic loss and casualties.

At present, most of common circuit breakers are provided with an operating mechanism in which a connecting rod is hinged to one side of a button, so that when the circuit breaker is opened or closed, the hole wall of a hinged hole is easily subjected to push-pull force to be bent or even pulled to be cracked. This leads to a change in the dimensional chain of the entire actuator and may even lead to serious problems with the reliability of the actuator.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an operating mechanism and a circuit breaker, which can effectively improve the reliability of the operating mechanism in the opening and closing process.

The embodiment of the utility model is realized by the following steps:

in one aspect of the present invention, an operating mechanism is provided, which includes a button, a switching mechanism, and a link between the button and the switching mechanism; the button is provided with two opposite side walls, one end of the button, which is close to the connecting rod, is provided with a hinge hole, the hinge hole is arranged between the two side walls in the middle, one end of the connecting rod is hinged with the button through the hinge hole, and the other end of the connecting rod is connected with the opening and closing mechanism; when the button moves in a driven mode, the connecting rod can drive the switching-on and switching-off mechanism to move so that the circuit breaker can be switched off or switched on. The operating mechanism can effectively improve the reliability of the operating mechanism in the opening and closing process.

Optionally, a mounting cavity is arranged in the button, and a mounting opening of the mounting cavity is positioned below the hinge hole; the operating mechanism also comprises a switching-on and switching-off indicator, and the switching-on and switching-off indicator is arranged in the mounting cavity through the mounting port; and the opening and closing indicating piece is used for indicating the opening state or closing state of the circuit breaker.

Optionally, a positioning column for being hinged in the mounting cavity is arranged on the opening and closing indicating member.

Optionally, an observation window is arranged on the button, and a switching-off indication part and a switching-on indication part are arranged on one surface, close to the observation window, of the switching-on and switching-off indication part; when in the opening state, the opening indicating part is positioned in the display area of the observation window; and when in a closing state, the closing indicating part is positioned in the display area of the observation window.

Optionally, a fixing boss is arranged on a base of the circuit breaker, and one surface of the opening and closing indicator, which is far away from the hinge hole, is used for being in sliding fit with the fixing boss; the button is driven to move towards the fixed boss, and the opening and closing indicating piece rotates forwards under the action of the fixed boss, so that the closing indicating part is positioned in the display area of the observation window; the button is driven to move towards the direction of being separated from the fixed boss, and the opening and closing indicating piece reversely rotates under the action of the fixed boss, so that the opening indicating part is located in the display area of the observation window.

Optionally, one side of the switching-on/off indicator close to the observation window is provided with a first guide inclined plane and a second guide inclined plane which are arranged in opposite directions, and the first guide inclined plane and the second guide inclined plane are respectively located on two opposite sides of the rotation center of the switching-on/off indicator.

Optionally, the opening indicating part and the closing indicating part have different color marks.

Optionally, a first structure is arranged on the opening indicating part, a second structure is arranged on the closing indicating part, and the first structure and the second structure are different.

Optionally, the button further comprises a limiting rib, and the limiting rib is arranged in the mounting cavity and used for limiting the opening and closing indicating member to prevent the opening and closing indicating member from being separated from the mounting cavity from the mounting hole.

In another aspect of the present invention, a circuit breaker is provided, which includes the above-mentioned operating mechanism.

The beneficial effects of the utility model include:

the operating mechanism comprises a button, a switching-on and switching-off mechanism and a connecting rod positioned between the button and the switching-on and switching-off mechanism; the button is provided with two opposite side walls, one end of the button, which is close to the connecting rod, is provided with a hinge hole, the hinge hole is arranged between the two side walls in the middle, one end of the connecting rod is hinged with the button through the hinge hole, and the other end of the connecting rod is connected with the opening and closing mechanism; when the button moves in a driven mode, the connecting rod can drive the switching-on and switching-off mechanism to move so that the circuit breaker can be switched off or switched on. According to the operating mechanism, on one hand, the problems that the hinge hole is broken due to uneven tension when the switch is switched off and the hole wall is deformed due to thrust when the switch is switched on can be solved; on the other hand, the operating mechanism can also realize that one button drives the multi-stage circuit breaker to realize opening or closing in a linkage manner.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of an operating mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a button according to an embodiment of the present invention;

FIG. 3 is a second schematic structural diagram of a button according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a switching-on/off indicator provided in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of the operating mechanism according to the embodiment of the present invention in an open state;

fig. 6 is a schematic structural diagram of an operating mechanism in a closing state according to an embodiment of the present invention.

Icon: 10-a button; 11-a hinge hole; 12-a mounting cavity; 121-a mounting port; 13-an observation window; 14-limit ribs; 15-side wall; 20-switching on and off mechanism; 30-a connecting rod; 40-switching on and off indicator; 41-a positioning column; 42-brake-off indication part; 43-a switching-on indicating part; 44-a first guide ramp; 45-a second guide ramp; 50-a base; 51-fixing the boss.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the present embodiment provides an operating mechanism, which includes a button 10, a switching-closing mechanism 20, and a link 30 located between the button 10 and the switching-closing mechanism 20; the button 10 is provided with two opposite side walls 15, one end of the button 10 close to the connecting rod 30 is provided with a hinge hole 11, the hinge hole 11 is centrally arranged between the two side walls 15, one end of the connecting rod 30 is hinged with the button 10 through the hinge hole 11, and the other end of the connecting rod 30 is connected with the opening and closing mechanism 20; when the button 10 is driven to move, the connecting rod 30 can drive the switching-on and switching-off mechanism 20 to move so as to switch off or switch on the circuit breaker. The operating mechanism can effectively improve the reliability of the operating mechanism in the opening and closing process.

The button 10 is used for driving the connecting rod 30 to move, so that the connecting rod 30 drives the opening and closing mechanism 20 to move, and further the opening and closing mechanism 20 drives the breaker to open or close. Wherein, the driven movement of the button 10 can be represented in a horizontal movement mode or a rotating mode. I.e. the button 10 may be driven to rotate or driven to move, which is not limited in this application. For example, in the present embodiment, the following will mainly exemplify the movement mechanism of the operating mechanism provided in the present application by taking the push-pull button 10 as an example to make the button 10 exhibit horizontal displacement.

The opening and closing mechanism 20 is used for driving the moving contact of the circuit breaker to be close to the fixed contact so as to close the circuit breaker, or driving the moving contact of the circuit breaker to be far away from the fixed contact so as to open the circuit breaker. The specific structural form of the switching-on mechanism 20 is not limited in the present application, and a person skilled in the art can set the switching-on mechanism according to actual requirements.

The connecting rod 30 is positioned between the button 10 and the switching-closing mechanism 20 and is used for enabling the button 10 to drive the switching-closing mechanism 20 to move through the connecting rod. In this embodiment, the button 10 is provided with a hinge hole 11, and the hinge hole 11 is located at an end of the button 10 close to the link 30 and is centrally disposed between the two sidewalls 15, as shown in fig. 2. Thus, the end of the connecting rod 30 far away from the switching-off and switching-on mechanism 20 can be hinged with the button 10 through the hinge hole 11. The hinge hole 11 is disposed at an end portion of the button 10 close to the link 30, and thus, compared with the prior art in which the hinge hole 11 is disposed at one side of the button 10 (i.e., above or below the button 10 in the orientation shown in fig. 2), the hinge hole 11 of the present application is disposed at an end portion of the button 10 and located at a central position of the end portion, and therefore, a hole wall of the hinge hole 11 and two side walls 15 of the button 10 are connected to each other, so that the strength of the hinge hole 11 can be improved, and problems such as breakage of the hinge hole 11 caused by uneven tension when opening the brake and deformation of the hole wall caused by thrust when closing the brake can be improved. In addition, because the connecting rod 30 and the button 10 of the operating mechanism provided by the present application have good connection strength, the capability of bearing acting force of the hinge hole 11 in the switching-on and switching-off process can be enhanced, so that one button 10 drives the multi-stage circuit breaker to realize linkage switching-on and switching-off, as shown in fig. 1.

In summary, the operating mechanism provided by the present application includes a button 10, a switching-off and switching-on mechanism 20, and a connecting rod 30 located between the button 10 and the switching-off and switching-on mechanism 20; the button 10 is provided with two opposite side walls 15, one end of the button 10 close to the connecting rod 30 is provided with a hinge hole 11, the hinge hole 11 is centrally arranged between the two side walls 15, one end of the connecting rod 30 is hinged with the button 10 through the hinge hole 11, and the other end of the connecting rod 30 is connected with the opening and closing mechanism 20; when the button 10 is driven to move, the connecting rod 30 can drive the switching-on and switching-off mechanism 20 to move so as to switch off or switch on the circuit breaker. According to the utility model, the connecting rod 30 and the hinge hole 11 of the button 10 are arranged at the end part of the button 10 close to the connecting rod 30, so that compared with the prior art that the hinge hole 11 is arranged at one side of the button 10 (namely, above or below the button 10 in the orientation shown in fig. 2), the hinge hole 11 can be connected with both side walls 15 of the button 10, so that the capacity of bearing acting force of the hinge hole 11 in the opening and closing process can be improved, and further, the strength of the hinge hole 11 and the working reliability of the operating mechanism are improved, therefore, on one hand, the operating mechanism can solve the problems that the hinge hole 11 is broken due to uneven tension force during opening and closing, and the hole wall is deformed due to thrust force during closing; on the other hand, the operating mechanism can also realize that one button 10 drives the multi-stage circuit breaker to realize switching-off or switching-on in a linkage manner.

Referring to fig. 3, optionally, a mounting cavity 12 is arranged in the button 10, and a mounting opening 121 of the mounting cavity 12 is located below the hinge hole 11; the operating mechanism further comprises a switching-on/off indicating piece 40, and the switching-on/off indicating piece 40 is installed in the installation cavity 12 through the installation opening 121; the opening and closing indicator 40 is used to indicate an opening state or a closing state of the circuit breaker.

The mounting cavity 12 is used for mounting the switching-on/off indicator 40, for example, when mounting, the switching-on/off indicator 40 can be plugged into the mounting cavity 12 from the mounting hole 121 of the mounting cavity 12, and then the switching-on/off indicator 40 is plugged into the hinge joint of the mounting cavity 12 and the switching-on/off indicator 40, so that the switching-on/off indicator 40 can rotate around the hinge joint. Because the hinge hole 11 sets up in the top of installation cavity 12, consequently, for the installation of divide-shut brake indicator 40, this application will divide-shut brake indicator 40 and install in installation cavity 12 with the mode of flip-chip.

Optionally, the opening and closing indicating member 40 is provided with a positioning column 41 for being hinged in the installation cavity 12, as shown in fig. 4. Of course, correspondingly, the button 10 should also be correspondingly provided with a connecting hole in the mounting cavity 12, so that the switching indicator 40 is hinged in the mounting cavity 12 through the positioning column 41.

Referring to fig. 3, 5 and 6, optionally, an observation window 13 is provided on the button 10, and a switching-off and switching-on indicating part 42 and a switching-on and switching-on indicating part 43 are provided on a surface of the switching-off and switching-on indicating member 40 close to the observation window 13; when in the opening state, the opening indicating part 42 is positioned in the display area of the observation window 13; in the closed state, the closing instruction unit 43 is located in the display area of the observation window 13.

The observation window 13 is used for observing the state of the opening and closing indicator 40, so that a user can distinguish whether the circuit breaker is in an opening state or a closing state at present.

For example, the opening indication part 42 and the closing indication part 43 may have different color marks. For example, the opening indicating part 42 may have a green mark, and the closing indicating part may have a red mark. The color mark may be formed by coating corresponding colors on the surfaces of the opening/closing indicating part 42 and the closing indicating part 43 close to the observation window 13. Thus, the user can judge the state of the breaker by observing the color of the observation window 13.

For example, the opening indication part 42 may be provided with a first configuration, and the closing indication part 43 may be provided with a second configuration, which are different from each other. Thus, the user can judge the state of the circuit breaker by observing the visible structural mark at the observation window 13. The first structure and the second structure may be one protrusion and one groove, for example, and the above examples are given by way of example, and are not intended to limit the first structure and the second structure, and those skilled in the art may select suitable first structure and second structure by themselves.

Referring to fig. 5 and fig. 6 in combination, optionally, a fixing boss 51 is disposed on the base 50 of the circuit breaker, and a surface of the opening and closing indicator 40 away from the hinge hole 11 is configured to be in sliding fit with the fixing boss 51; the button 10 is driven to move towards the fixed boss 51, and the switching-on and switching-off indicating member 40 rotates in the positive direction under the action of the fixed boss 51, so that the switching-on indicating part 43 is positioned in the display area of the observation window 13; the button 10 is driven to move towards the direction of disengaging from the fixed boss 51, and the opening and closing indicating member 40 rotates reversely under the action of the fixed boss 51, so that the opening indicating part 42 is positioned in the display area of the observation window 13.

Wherein the fixing boss 51 is extended from the base 50 of the circuit breaker toward one side of the push button 10, as shown in fig. 5 and 6. In this way, when the driving button 10 is opened or closed, the fixing boss 51 may act on the switching indicator 40, so as to drive the switching indicator 40 to rotate relatively, such that the switching indicator 42 is located in the display area of the observation window 13 or the closing indicator 43 is located in the display area of the observation window 13.

In this embodiment, the fixing boss 51 may also play a certain limiting role in the opening and closing indicator 40, and limit the opening and closing indicator 40 within a certain moving range.

Optionally, in this embodiment, as shown in fig. 2, the button 10 further includes a limiting rib 14, which is disposed in the mounting cavity 12 and is used for limiting the opening/closing indication member 40 to prevent the opening/closing indication member 40 from being separated from the mounting cavity 12 from the mounting opening 121. Based on the purpose of setting the limiting rib 14 in this application, a person skilled in the art can select the specific position of the limiting rib 14 in the installation cavity 12 by himself, which is not limited in this application.

Referring to fig. 4 and 5 again, optionally, a first guide inclined surface 44 and a second guide inclined surface 45 which are arranged oppositely are arranged on one surface of the switching-on/off indicator 40 close to the observation window 13, and the first guide inclined surface 44 and the second guide inclined surface 45 are respectively located on two opposite sides of the rotation center of the switching-on/off indicator 40.

Illustratively, as shown in fig. 4, the first guide slope 44 is located between the second guide slope 45 and the opening indicating portion 42. At this time, when the button 10 moves towards the direction approaching the connecting rod 30, the fixing boss 51 acts on the first guiding inclined surface 44, and then the fixing boss 51 can drive the switching-on/off indicator 40 to rotate clockwise, and further drive the circuit breaker to switch on, as shown in fig. 6; when the button 10 moves away from the link 30, the fixing boss 51 acts on the second guide slope 45, and the switching-off and switching-on indicator 40 can be driven to rotate counterclockwise, so as to drive the circuit breaker to switch off, as shown in fig. 5.

In another aspect of the present invention, a circuit breaker is provided, which includes the above-mentioned operating mechanism. Since the specific structure and the advantages of the above-mentioned operating mechanism have been described in detail in the foregoing, detailed descriptions of the operating mechanism and the advantages of the operating mechanism are omitted here.

The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

Claims

1. An operating mechanism is characterized by comprising a button (10), a switching-on and switching-off mechanism (20) and a connecting rod (30) positioned between the button (10) and the switching-on and switching-off mechanism (20); the button (10) is provided with two opposite side walls (15), one end, close to the connecting rod (30), of the button (10) is provided with a hinge hole (11), the hinge hole (11) is arranged between the two side walls (15) in the middle, one end of the connecting rod (30) is hinged to the button (10) through the hinge hole (11), and the other end of the connecting rod is connected with the switching-on/off mechanism (20);

when the button (10) moves in a driven mode, the connecting rod (30) can drive the switching-on/off mechanism (20) to move so that the circuit breaker can be switched off or switched on.

2. The operating mechanism according to claim 1, wherein a mounting cavity (12) is arranged in the button (10), and a mounting opening (121) of the mounting cavity (12) is positioned below the hinge hole (11); the operating mechanism further comprises a switching-on/off indicating piece (40), and the switching-on/off indicating piece (40) is installed in the installation cavity (12) through the installation opening (121); and the switching-on and switching-off indicator (40) is used for indicating the switching-off state or the switching-on state of the circuit breaker.

3. Operating mechanism according to claim 2, characterized in that the opening and closing indicating member (40) is provided with a positioning column (41) for hinging in the mounting cavity (12).

4. The operating mechanism according to claim 2 or 3, characterized in that an observation window (13) is arranged on the button (10), and a switching-off and switching-on indicating part (42) and a switching-on and switching-on indicating part (43) are arranged on one surface of the switching-off and switching-on indicating member (40) close to the observation window (13);

when in the opening state, the opening indicating part (42) is positioned in the display area of the observation window (13); and when in a closing state, the closing indicating part (43) is positioned in the display area of the observation window (13).

5. The operating mechanism according to claim 4, characterized in that a fixing boss (51) is arranged on the base (50) of the circuit breaker, and one surface of the opening and closing indicator (40) far away from the hinge hole (11) is used for being in sliding fit with the fixing boss (51);

the button (10) is driven to move towards the fixing boss (51), and the switching-on and switching-off indicating piece (40) rotates in the positive direction under the action of the fixing boss (51), so that the switching-on indicating part (43) is located in a display area of the observation window (13); the button (10) is driven to move towards a direction of being separated from the fixing boss (51), and the opening and closing indicating piece (40) rotates reversely under the action of the fixing boss (51) so that the opening indicating part (42) is located in the display area of the observation window (13).

6. The operating mechanism according to claim 5, characterized in that one side of the switching-closing indicating member (40) close to the observation window (13) is provided with a first guide inclined surface (44) and a second guide inclined surface (45) which are arranged oppositely, and the first guide inclined surface (44) and the second guide inclined surface (45) are respectively positioned at two opposite sides of the rotation center of the switching-closing indicating member (40).

7. Operating mechanism according to claim 4, characterized in that the opening indication (42) and the closing indication (43) have different colour indications.

8. The operating mechanism according to claim 4, characterized in that a first structure is provided on the opening indicating part (42) and a second structure is provided on the closing indicating part (43), and the first structure and the second structure are different.

9. The operating mechanism according to claim 2, wherein the button (10) further comprises a limiting rib (14) which is arranged in the mounting cavity (12) and is used for limiting the opening and closing indicating member (40) to prevent the opening and closing indicating member (40) from being separated from the mounting cavity (12) from the mounting opening (121).

10. A circuit breaker comprising an operating mechanism as claimed in any one of claims 1 to 9.