CN218160217U - Residual current protection moulded case circuit breaker divide-shut brake indicating device - Google Patents

Abstract

The utility model discloses a switch-on and switch-off indicating device of a residual current protection molded case circuit breaker, which comprises a base, an indicating component and a transmission component; wherein, the base is arranged in the molded case circuit breaker; the indicating component is movably switched between a closing indicating position and an opening indicating position and is arranged on the base; the transmission component is movably arranged on the base from the first position to the second position. The utility model discloses not only improve the disconnected speed of moving contact, also wholly improved the disconnected ability of moulded case circuit breaker short circuit.

Description

Residual current protection moulded case circuit breaker divide-shut brake indicating device

Technical Field

The utility model relates to a circuit breaker technical field, in particular to residual current protection moulded case circuit breaker divide-shut brake indicating device.

Background

The plastic shell type circuit breaker is usually adopted as a terminal switch or a branch switch in a low-voltage power distribution system, a real-time protection effect is achieved on a power circuit, in order to better observe the working state of the plastic shell type circuit breaker, the opening and closing state of the circuit breaker can be displayed according to the opening and closing action of the moving contact through the opening and closing indicating device arranged on the plastic shell type circuit breaker, so that the working state of the circuit breaker can be clearly judged during line maintenance, maintenance and circuit closing, and the line safety and the personnel safety are guaranteed.

The existing opening and closing indicating device comprises a base, an indicating component arranged in the base and a transmission component for pushing the indicating component to rotate. Under the on-off switching power of the moving contact, a transmission rod in the transmission assembly is easily limited by the position of the moving contact in the switching process between a switching-on indicating position and a switching-off indicating position so as to cause the blocking condition, thereby influencing the speed of the moving contact during breaking and the short-circuit breaking capacity of the molded case circuit breaker.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a residual current protection moulded case circuit breaker divide-shut brake indicating device aims at improving the disconnected ability of moulded case circuit breaker short circuit.

In order to achieve the above object, the present invention provides an opening and closing indicating device for a residual current protection molded case circuit breaker, wherein the molded case circuit breaker has a main circuit and a switch assembly disposed on the main circuit, the switch assembly has a fixed contact and a movable contact, and the movable contact has a closing position moving to contact with the fixed contact under closing power and a separating position moving to separate from the fixed contact under separating power; the utility model provides a residual current protection moulded case circuit breaker divide-shut brake indicating device includes:

the base is arranged in the molded case circuit breaker;

the indicating assembly is movably switched between a closing indicating position and an opening indicating position and is arranged on the base;

the transmission assembly is movably switched between a first position and a second position and is arranged on the base, and the transmission assembly is used for being in transmission connection with the moving contact and the indicating assembly;

the transmission assembly is used for moving from the first position to the second position under the switching-on power of the moving contact so as to drive the indicating assembly to switch from the switching-off indicating position to the switching-on indicating position;

under the action of the opening power of the moving contact, the moving contact can move from the second position to the first position so as to drive the indicating component to switch from a closing indicating position to an opening indicating position;

the indicating assembly is provided with a first abutting surface and a second abutting surface which are in sliding abutting joint with the transmission assembly to realize transmission connection; when the transmission assembly is switched between the first position and the second position, the transmission assembly slides from abutting against the first abutting surface to abutting against the second abutting surface;

the first abutting surface and the second abutting surface are in smooth transition connection.

Optionally, the base is provided with an accommodating cavity, and the indicating assembly comprises a rotating shaft fixed on the inner side of the base, a swing rod arranged in the accommodating cavity, and a sliding block arranged at the top of the base;

the rotating shaft is rotatably connected with the oscillating rod, the oscillating rod is in sliding fit with the transmission assembly when rotating, and one end of the oscillating rod, which is far away from the rotating shaft, is rotatably connected with the sliding block;

the sliding block slides on the top of the base and is provided with a closing indication position and an opening indication position, and a closing indication part and an opening indication part are arranged on the surface of the sliding block;

the first abutting surface and the second abutting surface are arranged on the swing rod.

Optionally, the sliding block is provided with a clamping groove, and one end of the swing rod is arranged in the clamping groove.

Optionally, a limiting plate is arranged in the base, a notch is formed in the limiting plate corresponding to the swing rod, a first sliding groove is formed in the end portion of the limiting plate and the end portion of the base, at least part of the sliding block is buckled in the first sliding groove, and the sliding block is connected with the first sliding groove in a sliding mode.

Optionally, the transmission assembly includes a transmission rod and a return spring, the transmission rod is movably switched between the first position and the second position along a first direction and is disposed on the base, the transmission rod has a transmission receiving end and a transmission output end, the transmission receiving end of the transmission rod is used for being in transmission connection with the moving contact, and the transmission output end of the transmission rod is in sliding abutting fit with the first abutting surface and the second abutting surface of the indication assembly;

the reset spring is arranged in an extending mode along a first direction, one end of the reset spring is fixedly connected with the base, the other end of the reset spring is connected with the transmission rod, the reset spring is used for compressing and storing energy when the reset spring moves to a first position from a second position along with the transmission rod under the action of opening power of the moving contact, the transmission rod moves to the second position from the first position under the action of closing power of the moving contact, and the reset spring resets to push the transmission rod to move to the second position from the first position.

Optionally, one side of the transmission rod is provided with a transmission block located in the base, one end of the reset spring is connected with the transmission block, and the transmission block and the transmission rod are integrally formed.

Optionally, a fixed block is fixedly connected in the base, a second sliding groove is formed in the position, opposite to the fixed block, of the transmission rod, and the fixed block is connected with the second sliding groove in a sliding mode.

Optionally, a micro switch is arranged on one side of the oscillating bar, the micro switch comprises a switch body, a trigger button and a trigger plate, the switch body is fixed on one side in the base, the trigger button is installed on the switch body, the trigger plate faces towards the oscillating bar, and when the oscillating bar rotates, the oscillating bar is in contact with or separated from the trigger plate to push the trigger button to trigger the contact of the switch body to be opened or closed.

Optionally, a torsion spring is further arranged in the accommodating cavity, the torsion spring is sleeved on the rotating shaft and abuts against the oscillating bar, one end of the torsion spring is fixedly connected with the inner side of the base, and the other end of the torsion spring is inserted into the bottom of the accommodating cavity.

The utility model also provides an residual current protection moulded case circuit breaker, including the major loop with locate the switch module on the major loop, the switch module has static contact and moving contact, the moving contact has under closing power move to with the switching-on position of static contact and under separating brake power move to with the separating brake position that the static contact is separated from, residual current protection moulded case circuit breaker still includes as above residual current protection moulded case circuit breaker divide-shut brake indicating device; the base of the residual current protection moulded case circuit breaker switching-on and switching-off indicating device is installed in the moulded case circuit breaker, and the transmission assembly of the residual current protection moulded case circuit breaker switching-on and switching-off indicating device is in transmission connection with the moving contact.

The utility model discloses technical scheme's residual current protection moulded case circuit breaker divide-shut brake indicating device includes base, instruction subassembly and drive assembly, and what instruction subassembly was mobile switches over between combined floodgate indicating position and separating brake indicating position sets up on the base, and drive assembly is on the base from the setting of mobile switching over between primary importance and the second place, and drive assembly is connected with moving contact, instruction subassembly transmission respectively. Therefore, in the practical application process of the switching-on/off indicating device, the transmission assembly is movably switched between the first position and the second position under the action of the switching-on/off power of the moving contact so as to drive the indicating assembly to be switched between the switching-on indicating position and the switching-off indicating position, and therefore the switching-on/off indication is completed. The indicating group is provided with a first abutting face and a second abutting face which are in sliding abutting connection with the transmission assembly to achieve transmission connection, the first abutting face and the second abutting face are in smooth transition connection, the transmission assembly and the indicating assembly are structurally connected in a smooth transmission mode through the structural design, the position limitation of the indicating assembly on the transmission assembly is reduced, the resistance of a moving contact of the molded case circuit breaker during opening is reduced, the breaking speed of the moving contact is improved, and the breaking capacity of short circuit of the molded case circuit breaker is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of the switching-on/off indicating device of the residual current protection molded case circuit breaker of the present invention;

fig. 2 is an exploded view of an embodiment of the switching-on/off indicating device of the residual current protection molded case circuit breaker shown in fig. 1;

fig. 3 is a schematic cross-sectional structure view of an embodiment of the switching-on and switching-off indicating device of the residual current protection molded case circuit breaker shown in fig. 1;

fig. 4 is an enlarged schematic structural diagram of an embodiment of the switching-on and switching-off indicating device of the residual current protection molded case circuit breaker shown in fig. 3.

The reference numbers indicate:

the realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a residual current protection moulded case circuit breaker divide-shut brake indicating device aims at improving the disconnected ability of circuit breaker short circuit.

Referring to fig. 1 to 4, the molded case circuit breaker includes a main circuit and a switch assembly disposed on the main circuit, where the switch assembly includes a fixed contact and a movable contact, and the movable contact moves to a closing position contacting the fixed contact under closing power and moves to a separating position separated from the fixed contact under separating power.

The residual current protection molded case circuit breaker opening and closing indicating device provided by the embodiment of the application comprises a base 10, an indicating assembly 40 and a transmission assembly 90; the base 10 is installed in the molded case circuit breaker; the indicating component 40 is movably switched between a closing indicating position 30 and an opening indicating position 20 and is arranged on the base 10; the transmission assembly 90 is configured to be movable from the first position 70 to the second position 80 under a switching power of the movable contact, so as to drive the indicating assembly 40 to switch from the switching indicating position 20 to the switching indicating position 30; under the action of the opening power of the movable contact, the movable contact can move from the second position 80 to the first position 70 so as to drive the indicating component 40 to switch from the closing indicating position 30 to the opening indicating position 20; the indicating component 40 has a first abutting surface 421 and a second abutting surface 422 which are in sliding abutting joint with the transmission component 90 to realize transmission connection; when the transmission assembly 90 is switched between the first position 70 and the second position 80, the transmission assembly 90 slides from pushing against the first pushing surface 421 to pushing against the second pushing surface 422; the first pushing surface 421 and the second pushing surface 422 are connected in a smooth transition manner.

In this embodiment, the base 10 is used for installing the indicating component 40 and the transmission component 90, playing a certain supporting role, and fixing the opening and closing indicating device to a main body of the molded case circuit breaker or other components. The shape of base 10 does not restrict, generally matches moulded case circuit breaker's shape or makes things convenient for its inner structure installation demand to set up, as in the example shown in fig. 1, base 10 is the rectangle form, and in indicating assembly 40 located base 10, drive assembly 90 was located base 10 bottom, can guarantee like this that the whole volume of base 10 can not be too big to reduce the space that occupies, be favorable to improving the convenience of divide-shut brake indicating device installation.

In this embodiment, the indication assembly 40 is disposed on the base 10, and is generally disposed on the top of the base 10, so as to be conveniently installed behind the molded case circuit breaker, and can conveniently indicate whether the switch assembly of the circuit breaker is in a closing or opening position. The circuit breaker switching-on or switching-off indicating part can be arranged on the circuit breaker switching-on or switching-off indicating part to indicate that a switching assembly of the circuit breaker is at a switching-on or switching-off position, wherein the switching-on or switching-off indicating part can indicate through letters, can also indicate by setting different color blocks, or can indicate by combining the two.

In this embodiment, the transmission assembly 90 is used for driving the indication assembly 40 to movably switch between the closing indication position 30 and the opening indication position 20, the transmission assembly 90 is disposed at the bottom of the base 10 and located below the indication assembly 40, one end of the transmission assembly 90 is in transmission connection with the movable contact, and the other end of the transmission assembly 90 is in transmission connection with the indication assembly 40. Therefore, in the practical application process of the switching-on/off indicating device, when the moving contact performs a switching-on action, the transmission assembly 90 moves from the first position 70 to the second position 80 to drive the indicating assembly 40 to switch from the switching-off indicating position 20 to the switching-on indicating position 30, so as to complete the switching-on indication; when the movable contact performs an opening operation, the transmission assembly 90 moves from the second position 80 to the first position 70 to drive the indicating assembly 40 to switch from the closing indicating position 30 to the opening indicating position 20, so as to complete the opening indication. Through the transmission mode, the indicating assembly 40 is not easy to deflect when switching, and the transmission assembly 90 has better transmission efficiency, so that the switching-on and switching-off indication of the molded case circuit breaker is clearer, and the integral short circuit breaking capacity of the molded case circuit breaker is also improved.

It should be noted that, the indicating component 40 is provided with the first abutting surface 421 and the second abutting surface 422, and the first abutting surface 421 and the second abutting surface 422 are connected in a smooth transition manner. The connection between the first contact surface 421 and the second contact surface 422 may be a curved surface for smooth transition, or an inclined surface or a plurality of inclined surfaces for smooth transition. An included angle a between the first abutting surface 421 and the second abutting surface 422 may be 135-175 degrees, and the fitting is smooth, and an opening of the included angle a faces away from a position where the transmission assembly 90 and the indication assembly 40 are fitted, that is, the transmission output end 912 of the transmission rod 91 in the following embodiments.

Thus, when the transmission assembly 90 is switched between the first position 70 and the second position 80, the transmission assembly 90 slides from the first abutting surface 421 on the indication assembly 40 to the second abutting surface 422 on the indication assembly 40, so that the transmission assembly 90 and the second abutting surface 422 structurally realize smooth transmission connection, position limitation of the indication assembly 40 on the transmission assembly 90 is reduced, resistance when a moving contact of the molded case circuit breaker is opened is reduced, breaking speed of the moving contact is increased, and breaking capacity of short circuit of the molded case circuit breaker is improved.

The utility model discloses technical scheme's residual current protection moulded case circuit breaker divide-shut brake indicating device includes base 10, indicating assembly 40 and transmission assembly 90, but indicating assembly 40 closes a floodgate and indicates setting up on base 10 of mobile switching between position 20 at combined floodgate indicating position 30 and separating brake indicating position, but transmission assembly 90 is on base 10 from the setting of mobile switching between first position 70 and the second position 80, and transmission assembly 90 is connected with moving contact, indicating assembly 40 transmission respectively. In this way, in the process of practical application of the switching-on/off indicating device, the transmission assembly 90 is movably switched between the first position 70 and the second position 80 under the action of the switching-on/off power of the movable contact, so as to drive the indicating assembly 40 to switch between the switching-on indicating position 30 and the switching-off indicating position 20, thereby completing the switching-on/off indication. The indicating assembly 40 is provided with a first abutting surface 421 and a second abutting surface 422 which are in sliding abutting connection with the transmission assembly 90 to realize transmission connection, and the first abutting surface 421 and the second abutting surface 422 are in smooth transition connection.

Referring to fig. 3 and 4, in an embodiment, the base 10 is provided with a receiving cavity 11, and the indicating assembly 40 includes a rotating shaft 41 fixed inside the base 10, a swing rod 42 arranged in the receiving cavity 11, and a sliding block 43 arranged at the top of the base 10;

the rotating shaft 41 is rotatably connected with the swing rod 42, the swing rod 42 is in sliding fit with the transmission assembly 90 when rotating, and one end of the swing rod 42, which is far away from the rotating shaft 41, is rotatably connected with the sliding block 43;

the sliding block 43 slides on the top of the base 10 and has the closing indication position 30 and the opening indication position 20, and a closing indication part and an opening indication part are arranged on the surface of the sliding block 43;

the first abutting surface 421 and the second abutting surface 422 are disposed on the swing rod 42.

In this embodiment, one end of the rotating shaft 41 is inserted into the inner side of the base 10, and the other end is suspended in the accommodating cavity 11. The position of the rotating shaft 41 is designed such that the swing link 42 can be disposed in the base 10 through the rotating shaft 41, and the swing link 42 is installed and positioned.

It can be understood that the swing link 42 is in an irregular arc structure, so that the swing link 42 has good deformation capability, so as to prolong the service life of the swing link 42. And one end of the swing rod 42 is sleeved on the rotating shaft 41 and is rotatably connected with the rotating shaft 41, and the other end is connected with the sliding block 43. Thus, in practical application, under the action of the opening and closing power of the movable contact, the driving component 90 drives the swing rod 42 to movably switch between the closing indication position 30 and the opening indication position 20 in the accommodating cavity 11, so as to drive the sliding block 43 to slide on the base 10 in the left-right direction, so that the sliding block 43 is also arranged at the closing indication position 30 or the opening indication position 20, and further, the closing indication portion or the opening indication portion on the surface of the sliding block 43 can be displayed on the shell of the molded case circuit breaker, so that a user can clearly know the real-time closing or opening indication condition of the opening and closing indication device.

Referring to fig. 3, in an embodiment, the sliding block 43 is provided with a locking groove 431, and one end of the swing link 42 is disposed in the locking groove 431.

In order to connect the swing link 42 and the sliding block 43, in this embodiment, a clamping groove 431 is formed at one end of the sliding block 43, which is fastened in the base 10, and one end of the swing link 42, which is far away from the rotating shaft 41, is disposed in the clamping groove 431, so that the swing link 42 and the sliding block 43 form a clamping connection, and when the swing link 42 moves between the closing indication position 30 and the opening indication position 20, the sliding block 43 is driven to slide left and right on the base 10, so as to achieve a good opening and closing indication effect.

The cross-sectional shape of the catching groove 431 may be rectangular, semicircular, circular, or the like, and is not limited thereto and may be set as needed.

Referring to fig. 3, in an embodiment, a position-limiting plate 50 is disposed inside the base 10, the position-limiting plate 50 is provided with a notch 51 corresponding to the swing rod 42, the position-limiting plate 50 and an end of the base 10 form a first sliding slot 60, the sliding block 43 is at least partially engaged in the first sliding slot 60, and the sliding block 43 is slidably connected to the first sliding slot 60.

In order to facilitate the installation of the sliding block 43, a position limiting plate 50 is further disposed in the base 10 and above the swing link 42, and a notch 51 is disposed at a middle position of the position limiting plate 50 corresponding to the swing link 42. With the structure, the maximum rotation stroke of the swing link 42 between the closing indication position 30 and the opening indication position 20 can be limited by the notch 51 of the limit plate 50, and the situation that the positions of the closing indication part and the opening indication part on the surface of the sliding block 43 are not correct due to the fact that the rotation stroke of the swing link 42 is too large is avoided. And a first sliding groove 60 is formed between the limiting plate 50 and the end of the base 10, so that the sliding block 43 can be partially buckled in the first sliding groove 60, so as to lock the installation position of the sliding block 43, and meanwhile, the arrangement of the first sliding groove 60 plays a role of guiding the left and right reciprocating motion of the sliding block 43 on the base 10, and prevents the sliding block 43 from deviating in position in the motion process.

Referring to fig. 3 and 4, in an embodiment, the transmission assembly 90 includes a transmission rod 91 and a return spring 92, the transmission rod 91 is movably disposed on the base 10 between the first position 70 and the second position 80 along a first direction, the transmission rod 91 has a transmission receiving end 911 and a transmission output end 912, the transmission receiving end 911 of the transmission rod 91 is used for being in transmission connection with the movable contact, and the transmission output end 912 of the transmission rod 91 is in sliding and abutting fit with the first abutting surface 421 and the second abutting surface 422 of the indicating assembly 40;

the return spring 92 is extended along a first direction, one end of the return spring 92 is fixedly connected with the base 10, the other end of the return spring 92 is connected with the transmission rod 91, the return spring 92 is used for compressing and storing energy when the transmission rod 91 moves from the second position 80 to the first position 70 under the opening power of the movable contact, the transmission rod 91 moves from the first position 70 to the second position 80 under the closing power of the movable contact, and the return spring 92 is reset to push the transmission rod 91 to move from the first position 70 to the second position 80.

In this embodiment, the transmission rod 91 is used for driving the indicating assembly 40 to move between the closing indicating position 30 and the opening indicating position 20, and the return spring 92 is used for providing power for the transmission rod 91 to move between the first position 70 and the second position 80. Thus, in the practical application process, when the moving contact transmits the opening power to the transmission receiving end 911 of the transmission rod 91, the transmission rod 91 moves from the second position 80 to the first position 70 to drive the return spring 92 to compress and store energy in the closing state; when the moving contact transmits a closing power to the transmission receiving end 911 of the transmission rod 91, the transmission rod 91 moves from the first position 70 to the second position 80 to drive the return spring 92 in the opening state to elastically return to push the transmission output end 912 of the transmission rod 91, so as to quickly push the transmission rod 91 to slide from the first position 70 to the second position 80.

Referring to fig. 3, in an embodiment, a driving block 93 located in the base 10 is disposed at one side of the driving rod 91, one end of the return spring 92 is connected to the driving block 93, and the driving block 93 and the driving rod 91 are integrally formed.

In this embodiment, the transmission rod 91 and the transmission block 93 are integrally formed, and one side of the transmission block 93 contacts with the inner side of the base 10, so that when the transmission rod 91 slides between the first position 70 and the second position 80 in the base 10, the transmission block 93 can be always clamped in the accommodating cavity 11, thereby preventing the transmission rod 91 from being separated from the base 10, and enhancing the overall installation stability of the opening and closing indicating device.

Referring to fig. 3, in an embodiment, a fixing block 94 is fixedly connected in the base 10, a second sliding groove 95 is formed in a position of the transmission rod 91, which faces the fixing block 94, and the fixing block 94 is slidably connected to the second sliding groove 95.

In order to facilitate the sliding of the transmission rod 91 on the base 10, in this embodiment, a fixing block 94 is disposed between the limiting plate 50 and the bottom of the base 10, and the length of the fixing block 94 is the same as the distance from the limiting plate 50 to the bottom of the base 10, so that the length design effectively improves the moving stroke of the transmission rod 91 between the first position 70 and the second position 80, so as to satisfy the condition that the moving stroke in the opening and closing indication device is large, and thus the application range of the opening and closing indication device is expanded. And the transmission rod 91 is provided with a second sliding groove 95 corresponding to the fixing block 94, so that the transmission rod 91 can slide on the base 10 to improve the sliding speed of the transmission rod 91 between the first position 70 and the second position 80, thereby improving the indicating efficiency of the switching indicating device and further improving the short-circuit breaking capacity of the molded case circuit breaker.

Referring to fig. 3, in an embodiment, a micro switch 100 is disposed on one side of the swing link 42, the micro switch 100 includes a switch body 101, a trigger button 102 and a trigger plate 103, the switch body 101 is fixed on one side in the base 10, the trigger button 102 is mounted on the switch body 101, the trigger plate 103 is disposed toward the swing link 42, and when the swing link 42 rotates, the swing link 42 contacts or separates with the trigger plate 103 to push the trigger button 102 to trigger a contact of the switch body 101 to be opened or closed.

In this embodiment, the switch body 101 is fixed on the inner side of the base 10 relative to the swing rod 42, the trigger button 102 is installed on one side of the switch body 101 close to the swing rod 42 and is slidably connected with the switch body 101, the trigger button 102 is located between the switch body 101 and the trigger plate 103, one end of the trigger plate 103 is fixedly connected with the switch body 101, the other end of the trigger plate is suspended in the base 10, and the trigger plate 103 is disposed toward the swing rod 42. Therefore, in the practical application process of the switching-on/off indicating device, when the moving contact performs a switching-on action, the transmission rod 91 moves from the first position 70 to the second position 80 to drive the swing rod 42 to switch from the switching-on indicating position 20 to the switching-on indicating position 30, and the swing rod 42 is separated from the trigger plate 103, so that the trigger button 102 triggers the micro switch 100 to be switched off, a switching-on signal is output, and a switching-on indication is completed; when the moving contact performs an opening operation, the transmission rod 91 moves from the second position 80 to the first position 70 to drive the swing link 42 to switch from the closing indication position 30 to the opening indication position 20, and the swing link 42 contacts the trigger plate 103, so that the trigger button 102 triggers the micro switch 100 to open, and an opening signal is output to complete an opening indication. And by arranging the microswitch 100, the opening and closing states of the moving contact of the circuit breaker can be detected in real time.

Referring to fig. 3, in an embodiment, a torsion spring 110 is further disposed in the accommodating cavity 11, the torsion spring 110 is sleeved on the rotating shaft 41 and abuts against the swing rod 42, one end of the torsion spring 110 is fixedly connected with the inner side of the base 10, and the other end is inserted into the bottom of the accommodating cavity 11.

In this embodiment, by providing the torsion spring 110, the torsion spring 110 transmits motion and force to the swing link 42, so that the swing link 42 can be freely switched between the closing indication position 30 and the opening indication position 20 to complete the opening and closing indication operation. Meanwhile, the self elasticity of the torsion spring 110 has a reaction effect on the transmission rod 91 in the transmission process, and is used for assisting the transmission rod 91 to move towards the direction close to the moving contact, so that the action sensitivity of the transmission rod 91 is improved.

It should be noted that the swing link 42 is convexly provided with an installation block 423, the installation block 423 is located above the torsion spring 110 and is disposed toward the micro switch 100, and the installation block 423 is provided with an installation hole 424. Thus, on the premise that one end of the torsion spring 110 is inserted into the bottom of the base 10, the other end of the torsion spring 110 abuts against the surface of the swing link 42 and passes through the mounting hole 424 to be fixed on the inner side of the base 10, so that the swing link 42 is limited, and the swing link 42 is prevented from being disengaged from the rotating shaft 41.

The utility model also provides a residual current protection moulded case circuit breaker, this residual current protection moulded case circuit breaker include divide-shut brake indicating device, and this divide-shut brake indicating device's concrete structure refers to above-mentioned embodiment, because this residual current protection moulded case circuit breaker has adopted all technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (10)

1. The utility model provides a residual current protection moulded case circuit breaker divide-shut brake indicating device, moulded case circuit breaker have the major loop and locate switch module on the major loop, switch module has static contact and moving contact, the moving contact has under closing operation power move to with the closing position of static contact and move under separating operation power to with the separating brake position that the static contact was separated from, its characterized in that, residual current protection moulded case circuit breaker divide-shut brake indicating device includes:

the base is arranged in the molded case circuit breaker;

the indicating assembly is movably switched between a closing indicating position and an opening indicating position and is arranged on the base;

the transmission assembly is movably switched between a first position and a second position and is arranged on the base, and the transmission assembly is used for being in transmission connection with the movable contact and the indicating assembly;

the transmission assembly is used for moving from the first position to the second position under the switching-on power of the moving contact so as to drive the indicating assembly to switch from the switching-off indicating position to the switching-on indicating position;

under the action of the opening power of the moving contact, the moving contact can move from the second position to the first position so as to drive the indicating component to switch from a closing indicating position to an opening indicating position;

the indicating assembly is provided with a first abutting surface and a second abutting surface which are in sliding abutting joint with the transmission assembly to realize transmission connection; when the transmission assembly is switched between the first position and the second position, the transmission assembly slides from the first abutting surface to the second abutting surface;

the first pushing surface and the second pushing surface are in smooth transition connection.

2. The residual current protection molded case circuit breaker opening and closing indicating device of claim 1, wherein the base is provided with a containing cavity, and the indicating component comprises a rotating shaft fixed on the inner side of the base, a swing rod arranged in the containing cavity and a sliding block arranged on the top of the base;

the rotating shaft is rotatably connected with the oscillating rod, the oscillating rod is in sliding fit with the transmission assembly when rotating, and one end of the oscillating rod, which is far away from the rotating shaft, is rotatably connected with the sliding block;

the sliding block slides on the top of the base and is provided with a closing indication position and an opening indication position, and a closing indication part and an opening indication part are arranged on the surface of the sliding block;

the first abutting surface and the second abutting surface are arranged on the swing rod.

3. The residual current protection molded case circuit breaker opening and closing indicating device of claim 2, wherein the sliding block is provided with a clamping groove, and one end of the swing rod is arranged in the clamping groove.

4. The switch-on and switch-off indicating device of the residual current protection molded case circuit breaker according to claim 2, wherein a limiting plate is arranged in the base, the limiting plate is provided with a notch corresponding to the swing rod, the limiting plate and the end of the base form a first sliding groove, the sliding block is at least partially buckled in the first sliding groove, and the sliding block is slidably connected with the first sliding groove.

5. The residual current protection molded case circuit breaker switch-on/switch-off indicating device of claim 1, wherein the transmission assembly comprises a transmission rod and a return spring, the transmission rod is movably switched between the first position and the second position along a first direction and is disposed on the base, the transmission rod has a transmission receiving end and a transmission output end, the transmission receiving end of the transmission rod is used for being in transmission connection with the movable contact, and the transmission output end of the transmission rod is in sliding and abutting fit with the first abutting surface and the second abutting surface of the indicating assembly;

the reset spring extends along a first direction, one end of the reset spring is fixedly connected with the base, the other end of the reset spring is connected with the transmission rod, the reset spring is used for compressing and storing energy when the reset spring moves from a second position to a first position along with the transmission rod under the opening power of the movable contact, and the reset spring resets to push the transmission rod to move from the first position to the second position under the closing power of the movable contact.

6. The switch-on and switch-off indicating device of the residual current protection molded case circuit breaker as claimed in claim 5, wherein a driving block located in the base is provided at one side of the driving rod, one end of the return spring is connected to the driving block, and the driving block and the driving rod are integrally formed.

7. The residual current protection molded case circuit breaker opening and closing indicating device of claim 5, wherein a fixed block is fixedly connected in the base, a second sliding groove is formed in a position of the transmission rod opposite to the fixed block, and the fixed block is slidably connected with the second sliding groove.

8. The residual current protection molded case circuit breaker switch-on/switch-off indicating device of claim 2, wherein a micro switch is disposed at one side of the swing link, the micro switch comprises a switch body, a trigger button and a trigger plate, the switch body is fixed at one side in the base, the trigger button is mounted on the switch body, the trigger plate is disposed towards the swing link, and when the swing link rotates, the swing link contacts or separates with the trigger plate to push the trigger button to trigger the contact of the switch body to be opened or closed.

9. The residual current protection moulded case circuit breaker on-off indicating device of claim 2, wherein the accommodating chamber is further provided with a torsion spring, the torsion spring is sleeved on the rotating shaft and abuts against the swing rod, one end of the torsion spring is fixedly connected with the inner side of the base, and the other end of the torsion spring is inserted at the bottom of the accommodating chamber.

10. An residual current protection molded case circuit breaker, comprising a main circuit and a switch assembly arranged on the main circuit, wherein the switch assembly is provided with a fixed contact and a movable contact, the movable contact is provided with a switching-on position which moves to be in contact with the fixed contact under the switching-on power and a switching-off position which moves to be separated from the fixed contact under the switching-off power, and the residual current protection molded case circuit breaker is characterized by further comprising the switching-on and switching-off indicating device of the residual current protection molded case circuit breaker as claimed in any one of claims 1 to 9; the base of the residual current protection moulded case circuit breaker switching-on and switching-off indicating device is installed in the moulded case circuit breaker, and the transmission assembly of the residual current protection moulded case circuit breaker switching-on and switching-off indicating device is in transmission connection with the moving contact.

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