CN217086498U - Circuit breaker - Google Patents

Abstract

The utility model provides a circuit breaker, relating to the technical field of low-voltage electrical appliances, which comprises a handle driven by a handle to drive an operating mechanism to switch on or off; when the breaker is inserted into the case, the shell is matched with the case through the locking piece; when the breaker which is in plug-in fit with the case needs to be disassembled or replaced, acting force can be applied to the driving piece to drive the driving piece, then the locking piece is driven to move, the part, extending out of the shell, of the locking piece retracts into the shell, locking between the locking piece and the case is relieved, meanwhile, the driving piece can continue to drive the shell which is relieved from limiting with the case to be pulled out relative to the case along with continuous stress of the driving piece, and the case are relieved from matching. Therefore, the locking and unlocking limiting of the circuit breaker and the case and the pulling-out and separating of the case are realized by only applying force to the driving part, the number of mechanisms is effectively reduced, the occupied space is reduced, and the miniaturization of the circuit breaker is facilitated.

Description

Circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus technical field particularly, relates to a circuit breaker.

Background

With the rapid development of economy, the living standard of people is rapidly improved, and the safety of household electricity utilization is required to be higher. The circuit breaker may be installed in a terminal distribution line. Meanwhile, the circuit can be connected, carried and disconnected under the condition of normal or abnormal circuit, and the circuit and the electrical equipment are effectively protected.

The existing circuit breaker needs to be realized through a relatively complex mechanism: when the breaker is used, the insertion of the breaker is limited on the case, when the breaker is disassembled, the breaker and the case are relieved from limiting and pulled out from the case, and the breaker is not beneficial to miniaturization due to the fact that the mechanism is complex and large in occupied size.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the not enough among the above-mentioned prior art, provide a circuit breaker to it is comparatively complicated to improve current circuit breaker mechanism, occupies the great problem of volume.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

in one aspect, the present invention provides a circuit breaker, including a housing, and a handle, an operating mechanism, a driving member and a locking member disposed on the housing; the handle is connected with the operating mechanism and is driven to drive the operating mechanism to switch on or switch off; the shell is used for matching with the case through the locking piece when the circuit breaker is inserted into the case; the driving part is in transmission connection with the locking part, and the driving part drives the locking part to move so that the shell is disengaged from the case.

Optionally, the driving part can be detachably arranged and can be separated from the shell of the circuit breaker, and the driving part is taken out to be matched with the circuit breaker when the circuit breaker is used.

Optionally, the locking member is rotatably disposed on the housing, and the driving member is driven to drive the locking member to rotate relative to the housing.

Optionally, the locking member includes a rotating member and an acting member, the rotating member is rotatably disposed in the housing, and the acting member and the driving member are respectively connected to the rotating member.

Optionally, the acting element includes a body and a locking portion disposed on the body, the body is connected to the rotating element, a locking hole is disposed on the housing, and the locking portion is located in the locking hole.

Optionally, the locking portion includes a locking wall and a guiding wall, which are oppositely disposed, the guiding wall is used for guiding the housing to be matched with the chassis, and the locking wall is used for abutting against the chassis to match the housing with the chassis.

Optionally, the locking member is slidably disposed in the housing, and the driving member is driven to drive the locking member to slide relative to the housing.

Optionally, the locking member is further provided with a contact portion, and the locking member is configured to contact the operating mechanism through the contact portion when the operating mechanism is switched on.

Optionally, a through hole is formed in the housing, and the driving member extends out of the housing through the hole portion.

Optionally, the housing is further provided with a limiting portion, and the driving part abuts against the limiting portion when the housing and the chassis are disengaged.

Optionally, the circuit breaker further comprises an elastic member connected to the locking member for providing a reset force to the locking member.

Optionally, the circuit breaker further comprises a pulling part, the pulling part is connected with the handle, and the handle is pulled to drive the operating mechanism to open the brake.

Optionally, the handle is rotatably arranged on the housing and is connected with the operating mechanism through a connecting rod; or the handle is arranged in the shell in a sliding way and is connected with the operating mechanism through the connecting rod.

Optionally, the circuit breaker further includes an input terminal and an output terminal, the input terminal and the output terminal are disposed on the same side of the housing, and the circuit breaker is inserted into the case through the input terminal and the output terminal.

The beneficial effects of the utility model include:

the utility model provides a circuit breaker, which comprises a shell, an operating mechanism, a driving part and a locking part, wherein the operating mechanism, the driving part and the locking part are arranged on the shell; the operating mechanism is used for driven switching on or switching off; the shell is used for matching with the case through the locking piece when the circuit breaker is inserted into the case; when the circuit breaker which is in plug-in fit with the case needs to be disassembled or replaced, the driving piece and the locking piece are in transmission connection, so that acting force can be applied to the driving piece to drive the driving piece, then the locking piece is driven to move, the part, extending out of the shell, of the locking piece retracts into the shell, locking of the locking piece and the case is released, meanwhile, along with continuous stress of the driving piece, the shell which is limited by the case can be continuously driven to be pulled out relative to the case, and the case are released. Therefore, the locking releasing limit of the circuit breaker and the case and the pulling-out separation of the case can be realized by only applying force to the driving part, the number of mechanisms is effectively reduced, the occupied space is reduced, and the miniaturization of the circuit breaker is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required 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 view of an opening state of a circuit breaker according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a closing state of a circuit breaker according to an embodiment of the present invention;

fig. 3 is one of schematic axial side views of a circuit breaker according to an embodiment of the present invention;

fig. 4 is a second schematic axial view of a circuit breaker according to an embodiment of the present invention.

Icon: 100-a housing; 200-an active part; 300-a lock; 310-a rotating member; 320-an acting element; 321-a body; 322-a locking portion; 323-an abutment; 324-a locking wall; 325-a guide wall; 400-an operating mechanism; 410-moving contact; 420-static contact; 500-a chassis; 610-a pulling member; 620-handle; 630-elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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, as 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 accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. It should be noted that, in the case of no conflict, various features in the embodiments of the present invention may be combined with each other, and the combined embodiments are still within the 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 "first", "second", "third", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

The embodiment of the utility model provides an aspect, a circuit breaker is provided, as shown in fig. 1, including casing 100 and set up in casing 100's operating device 400, main part 200 and locking piece 300, wherein, operating device 400 sets up inside casing 100, operating device 400 includes moving contact 410 and establishes the drive mechanism that the transmission is connected with moving contact 410, as shown in fig. 1 and fig. 2, when drive mechanism is driven, can drive moving contact 410 by the direction motion of separating brake to combined floodgate, also can be the direction motion that drives moving contact 410 by separating brake to combined floodgate, with this realization operating device 400 is driven combined floodgate or separating brake, also be the realization of combined floodgate or separating brake function of circuit breaker.

When the circuit breaker is used, it needs to be connected to a load first, that is, by inserting one end (i.e., the right end in fig. 1) of the circuit breaker, which is away from the handle 620, into the case 500, so that the circuit breaker is connected to a load circuit through the input terminal and the output terminal provided on the housing 100. In order to ensure the stability of the circuit breaker in normal use, the active part 200 and the locking part 300 may be further disposed on the housing 100, wherein the active part 200 is connected with the locking part 300 to form a transmission relationship, so that when the circuit breaker is inserted into the case 500, that is, the circuit breaker is already inserted into the case 500 in place, the locking part 300 partially extends out of the housing 100 to be locked with the case 500, and the housing 100 is convenient to form a limiting relationship with the case 500 through the locking part 300 in a matching manner, thereby preventing the housing 100 from moving relative to the case 500, resulting in the separation of the circuit breaker from the case 500 under an unexpected condition, and further generating a potential safety hazard.

As shown in fig. 1, when the circuit breaker that is inserted into and fitted to the chassis 500 needs to be removed or replaced, since the active element 200 and the locking element 300 are in transmission connection, an acting force can be applied to the active element 200 to drive the active element 200, and then the locking element 300 is driven to move, so that the portion of the locking element 300 extending out of the housing 100 is retracted into the housing 100, that is, the locking between the locking element 300 and the chassis 500 is released, and meanwhile, with the continuous acting force of the active element 200, the housing 100 that has been released from the limit of the chassis 500 can be continuously driven to be pulled out relative to the chassis 500, thereby releasing the fitting between the housing 100 and the chassis 500.

In conclusion, the locking member 300 can realize the stable locking of the circuit breaker and the case 500 when in use; when the circuit breaker needs to be disassembled or replaced, the force is applied to the driving part 200, the locking part 300 is pulled to move at the first stage of the force application, the circuit breaker and the case 500 are unlocked and limited, then the circuit breaker is pulled out relative to the case 500 by the second stage of the force application, therefore, the circuit breaker and the case 500 are driven to be unlocked and limited and the case 500 is pulled out and separated by two stages through only applying force to the driving part 200, the number of mechanisms is effectively reduced, the occupied space is reduced, and the miniaturization of the circuit breaker is facilitated.

Optionally, as shown in fig. 2, 3 and 4, the circuit breaker further includes an elastic member 630, and the elastic member 630 is connected to the latching member 300 and is used for providing a reset force to the latching member 300, i.e., the elastic member 630 provides a reset force to the latching member 300, and the reset force makes a portion (the latching portion 322) of the latching member 300 have a tendency to protrude to the outside of the housing 100, so as to satisfy an effective latching limit with the case 500 when necessary. For example: when the driving element 200 is not driven, a portion of the locking element 300 is kept protruding out of the housing 100, and when the driving element 200 is driven, the locking element 300 is driven to move, and simultaneously, the elastic element 630 is also charged with energy, that is, a resetting force is generated on the locking element 300. The elastic member 630 may be various forms of a spring plate, a torsion spring, a tension spring, a compression spring, etc.

Optionally, as shown in fig. 1 and fig. 2, the locking member 300 is rotatably disposed in the housing 100, at this time, the active member 200 is connected to the locking member 300, when the active member 200 is driven, the locking member 300 is driven to rotate relative to the housing 100, so that a portion of the locking member 300 extending out of the housing 100 is retracted into the housing 100 through rotation, thereby releasing the locking limit of the locking member 300 and the case 500, after the circuit breaker is pulled out from the case 500, an acting force acting on the active member 200 is removed, at this time, the locking member 300 drives the locking member 300 to reset under the action of the elastic member 630, that is, a portion of the locking member 300 extends out of the housing 100, thereby implementing multiple plugging and detaching operations. The rotation direction of the locking member 300 may be clockwise or counterclockwise, which is not limited in the present application.

Alternatively, as shown in fig. 1 and 2, the locking member 300 includes a rotating member 310 and an acting member 320, the rotating member 310 is rotatably disposed on the housing 100, the acting member 320 and the driving member 200 are respectively rotatably connected to the rotating member 310, the acting member 320 can also be rotatably disposed on the housing 100, and the acting member 320 and the driving member 200 can be respectively located at opposite sides of a rotation center of the rotating member 310, for example: as shown in fig. 1, the driving element 200 is connected to the left side of the rotation center of the rotation element 310, and the acting element 320 is connected to the right side of the rotation center of the rotation element 310, at this time, a leftward force is applied to the driving element 200 to drive the rotation element 310 to rotate in the counterclockwise direction, and correspondingly drive the acting element 320 on the other side to rotate in the clockwise direction relative to the housing 100, i.e., the portion (the locking portion 322) of the acting element 320 extending out of the housing 100 is retracted into the housing 100.

Alternatively, as shown in fig. 1 and 2, the acting element 320 includes a body 321 and a locking portion 322 disposed on the body 321, the body 321 is connected to the rotating element 310, a locking hole is disposed on the housing 100, and the locking portion 322 is disposed in the locking hole, so that when the main element 200 is not subjected to an external force, the elastic element 630 drives the rotating element 310 to make the locking portion 322 on the body 321 extend out of the housing 100 along the locking hole, and when the main element 200 is subjected to a force, the rotating element 310 drives the locking portion 322 on the body 321 to retract to the housing 100 along the locking hole.

Optionally, in order to improve the convenience of inserting the circuit breaker into the housing 100, as shown in fig. 2, two opposite side walls of the locking portion 322 may be a locking wall 324 and a guiding wall 325, respectively, where the guiding wall 325 is located at a side of the locking portion 322 close to the chassis 500, and the locking wall 324 is located at a side of the locking portion 322 away from the chassis 500, so that, during the process of inserting the circuit breaker into the chassis 500, the guiding wall 325 on the locking portion 322 contacts the chassis 500, and with continuous contact, the chassis 500 can press the locking portion 322 into the chassis 500 more smoothly through the guiding wall 325, so that, during the process of inserting the housing 100 into the chassis 500, the locking portion 325 corresponds to the notch on the chassis 500 after being inserted into position, and thus, the locking portion 322 extends out of the locking hole under the action of the elastic member 630, and the locking wall 324 abuts against the side wall at the notch of the chassis 500, the housing 100 and the case 500 are matched and locked for limiting, and the circuit breaker is prevented from being accidentally separated from the case 500.

Alternatively, in another embodiment, the locking member 300 may be in the form of a sliding member disposed on the housing 100, such as: the housing 100 is provided with a slide rail, the locking member 300 is slidably disposed on the slide rail, at this time, the active member 200 is connected to the locking member 300, when the active member 200 is driven, the locking member 300 can be pulled to slide along the slide rail, and the locking portion 322 retracts into the housing 100, and then the active member 200 pulls the circuit breaker out of the case 500, so as to form the unmating of the housing 100 and the case 500. In order to further improve the stability of the operation, a limiting mechanism may be further disposed at two sliding ends, so that after the driving member 200 pulls the locking portion 322 of the locking member 300 to retract into the housing 100, the locking member 300 is limited by the limiting mechanism, and at this time, the driving member 200 may pull the entire circuit breaker to be pulled out of the case 500.

Optionally, as shown in fig. 1 to 4, in order to facilitate the stress of the active component 200, a through hole may be further disposed on the housing 100, one end of the active component 200 is connected to the locking component 300 in the housing 100, and the other end of the active component 200 extends out of the housing 100 through the through hole, so that when a force is applied, the active component 200 extending out of the housing 100 may be pulled to drive the active component 200. The driving member 200 may be a pull rod, a pull ring, etc.

Optionally, in addition, a limiting portion may be further disposed on the casing 100, and when the casing 100 and the chassis 500 are disengaged, the driving member 200 may abut against the limiting portion, so as to form a whole with the casing 100, and the circuit breaker may be conveniently pulled out by an external force through the driving member 200.

Optionally, as shown in fig. 1 to 4, the circuit breaker further includes a pulling member 610 and a handle 620, the handle 620 is connected to the operating mechanism 400, and the operating ends of the handle 620 and the pulling member 610 extend out of the housing 100 so as to operate the handle 620 and the pulling member 610. When the handle 620 is driven, the operating mechanism 400 is driven to open or close, so that opening and closing of the circuit breaker are realized. In addition, the pulling member 610 can be connected to the handle 620, so that the pulling member can be operated by operating the handle 620 during normal opening and closing. When the circuit breaker needs to be pulled out from the case 500, the pulling piece 610 applies force, before the pulling piece 610 pulls the circuit breaker to be separated from the case 500, the pulling piece 610 drives the operating mechanism 400 through the handle 620 to enable the circuit breaker to be in an opening state, and then the circuit breaker is pulled out.

The circuit breaker may be a wiring form that can be drawn back and forth, for example, as shown in fig. 1 to 4, the input terminal and the output terminal are disposed at the same side of the housing 100, the circuit breaker is inserted into the case through the input terminal and the output terminal, the input terminal is connected with the movable contact 410 through the flexible connecting wire, the fixed contact 420 is connected with the output terminal, and the input terminal and the output terminal are both disposed at one side opposite to the handle 620, so that a space for the output terminal originally disposed at the same side as the handle 620 is left, which is convenient for the disposition of the handle 620 and the operating mechanism 400, and is helpful for reducing the volume of the circuit breaker, and is beneficial to the miniaturization of the circuit breaker.

As shown in fig. 1 to 4, the handle 620 may be rotatably disposed on the housing 100, and the handle 620 is connected to the operating mechanism 400 through a connecting rod, so that the handle 620 is rotated to drive the operating mechanism 400 to open and close; the handle 620 may also be slidably disposed on the housing 100, and the handle 620 may still be connected to the operating mechanism 400 through a connecting rod, so as to realize opening and closing of the operating mechanism 400.

When the casing 100 of circuit breaker is the cuboid structure, handle 620, operating device 400 and terminal (input and output terminal) can lay in proper order along length direction, owing to adopt the wiring mode of going out after the back, consequently, the position that sets up of handle 620 need not be restricted to output terminal's position, so the position that sets up of handle 620 can set gradually along the direction of height of circuit breaker casing 100, for example can be located comparatively upper position, comparatively be close to middle position or comparatively lower position (as shown in fig. 1 to fig. 4), so, alright improve the ability of circuit breaker adaptation environment, satisfy the user demand to different environment.

In order to further improve the safety of the circuit breaker during installation and use, as shown in fig. 1 and 2, the locking member 300 may further have an abutting portion 323, the abutting portion 323 extends toward the operating mechanism 400, and 620 when the operating mechanism 400 is at the closing position and is not plugged into the case 500, one end of the locking member 300, for example, the locking portion 322, extends upward out of the housing 100, and when the circuit breaker is plugged into the case 500 in this state, because the abutting portion 323 abuts against the operating mechanism 400 (as shown in fig. 2), one end of the locking member 300 cannot retract into the housing 100, and one end of the locking member 300 abuts against the case 500, the circuit breaker cannot be plugged into the case 500 in the closing state. In the process that the operating mechanism 400 is in the opening state and the circuit breaker is inserted into the case 500, one end of the locking member 300 is compressed into the housing 100 by the case 500, and the locking member 300 moves to a certain extent, so that the abutting portion 323 abuts against the operating mechanism 400. When the circuit breaker is inserted into the housing 500 and the operating mechanism 400 is in the closed state, the abutting portion 323 abuts against the operating mechanism 400 (as shown in fig. 2), so that the locking portion 322 of the locking member 300 cannot retract into the housing 100, and the circuit breaker cannot be separated from the housing 500 in the closed state.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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.

Claims (10)

1. A circuit breaker is characterized by comprising a shell (100), a handle (620) arranged on the shell (100), an operating mechanism (400), an active part (200) and a locking part (300); the handle (620) is connected with the operating mechanism (400), and the handle (620) is driven to drive the operating mechanism (400) to switch on or switch off; the shell (100) is used for being matched with the case through the locking piece (300) when the circuit breaker is plugged into the case; the driving piece (200) is in transmission connection with the locking piece (300), and the driving piece (200) is driven to drive the locking piece (300) to move so that the shell (100) is disengaged from the case.

2. The circuit breaker according to claim 1, wherein the locking member (300) is rotatably disposed on the housing (100), and the driving member (200) is driven to rotate relative to the housing (100); the locking piece (300) comprises a rotating piece (310) and an acting piece (320), the rotating piece (310) is rotatably arranged on the shell (100), and the acting piece (320) and the driving piece (200) are respectively connected with the rotating piece (310).

3. The circuit breaker according to claim 2, wherein the acting member (320) comprises a body (321) and a locking portion (322) provided to the body (321), the body (321) is connected to the rotating member (310), a locking hole is provided to the housing, and the locking portion (322) is located in the locking hole.

4. The circuit breaker of claim 3 wherein said latch (322) includes oppositely disposed latch walls (324) and guide walls (325), said guide walls (325) for guiding said housing (100) into engagement with said case, said latch walls (324) for abutting said case to engage said housing (100) with said case.

5. The circuit breaker according to claim 1, wherein the locking member (300) is slidably disposed in the housing, and the driving member (200) is driven to slide the locking member (300) relative to the housing.

6. The circuit breaker according to claim 1, wherein an abutting portion (323) is further provided on the locking member (300), and the locking member (300) is configured to abut against the operating mechanism (400) through the abutting portion (323) when the operating mechanism (400) is closed.

7. The circuit breaker according to claim 1, wherein a position-limiting portion is further disposed on the housing (100), and when the housing and the case are disengaged, the active member (200) abuts against the position-limiting portion.

8. The circuit breaker according to any of the claims 1 to 7, further comprising a pulling member (610), wherein the pulling member (610) is connected to the handle (620), and the handle (620) is pulled to drive the operating mechanism (400) to open.

9. The circuit breaker according to any of the claims 1 to 7, characterized in that the handle (620) is rotatably arranged on the housing (100), the handle (620) is connected with the operating mechanism (400) through a connecting rod; or, the handle (620) is arranged on the shell (100) in a sliding mode, and the handle (620) is connected with the operating mechanism (400) through a connecting rod.

10. The circuit breaker according to any of claims 1 to 7, characterized in that it comprises input terminals and output terminals, said input terminals and said output terminals being arranged on the same side of said casing (100), said circuit breaker being plugged into a case (500) through said input terminals and said output terminals.

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