CN216487930U

CN216487930U - Combined handle and circuit breaker

Info

Publication number: CN216487930U
Application number: CN202121650961.9U
Authority: CN
Inventors: 徐应军; 李求杰; 李雪冰
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-05-10
Anticipated expiration: 2031-07-20

Abstract

A combined handle and a circuit breaker are disclosed, wherein the circuit breaker comprises at least two circuit breaker modules, and at least one circuit breaker module is provided with the combined handle; the combined handle comprises a first handle and a second handle which are arranged in a split mode, an operating handle used for being connected with a linkage piece is arranged on the first handle, a groove is formed in one of the first handle and the second handle, a protruding block matched with the groove is arranged on the other handle, the inner diameter of the groove is larger than the outer diameter of the protruding block, the protruding block moves in the groove when the first handle rotates, the second handle is driven to rotate after the protruding block is contacted with the side wall of the groove, the first handle and the second handle are guaranteed to rotate sequentially, and the combined handle is convenient to operate, safe and reliable.

Description

Combined handle and circuit breaker

Technical Field

The utility model relates to the field of low-voltage electric appliances, in particular to a combined handle and a circuit breaker.

Background

Circuit breakers are often used to control the switching of lines and automatically disconnect the lines when a line fault occurs, and a plurality of circuit breaker modules are usually spliced to form a multi-pole circuit breaker, particularly a P + N multi-pole circuit breaker, and the circuit breaker modules generally include a conventional module and a control module, but an electronic component board for a control signal is arranged in the control module, so that the space for arc extinguishing inside the control module is small, resulting in poorer arc extinguishing capability of the control module than that of the conventional module. Although the prior art can reduce the opening distance of the control module, the control module is switched on before the conventional module, and the control module is switched on without electricity. However, the control module still generates electric arcs when opening the brake, and if the control module cannot extinguish the electric arcs quickly, the control module is damaged, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a combined handle capable of driving different controlled devices to act in sequence.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a combination handle, includes first handle and the second handle that the components of a whole that can function independently set up, one of first handle and second handle is equipped with the recess, and the other is equipped with the lug with recess complex, there is the clearance between lug and the recess, the lug earlier remove in the recess when first handle rotates through the clearance, drive the second handle rotation again after the lug contacts with the lateral wall of recess. Preferably, the second handle is provided with a connecting block, and the connecting block is provided with a connecting hole matched with the operating mechanism.

Preferably, the first handle is provided with an operating handle, the second handle is provided with a limiting block, and a limiting table matched with the limiting block is arranged in the corresponding circuit breaker module to limit the position of the second handle during switching on.

Preferably, the first handle is provided with an elastic member connected with the breaker module housing.

Preferably, the axes of the first handle and the second handle are coincided, and the first handle is arranged on one side of the second handle along the axial direction.

Preferably, the protruding block and the groove are of arc-surface structures respectively, the protruding block is provided with a left driving surface and a right driving surface at two circumferential ends of the first handle respectively, an included angle between the left driving surface and the right driving surface is alpha, the groove is provided with a left side wall and a right side wall at two circumferential ends of the second handle respectively, an included angle between the left side wall and the right side wall is beta, and beta-alpha is larger than 0.

Preferably, the projection is disposed on the first handle and the groove is disposed on the second handle.

Preferably, the elastic part is a torsion spring, the middle part of the torsion spring is sleeved on the first handle, and two ends of the torsion spring are respectively limited with the first handle and the breaker module shell.

According to the combined handle, the first handle and the second handle are matched with the groove through the convex block, and the gap is formed between the convex block and the groove, so that the convex block moves to the side wall of the groove for an idle stroke when the first handle is switched off, and when the convex block is contacted with the side wall of the groove, the second handle is driven to start rotating through the acting force between the convex block and the side wall of the groove, so that the first handle and the second handle are ensured to rotate sequentially, and the combined handle is convenient to operate, safe and reliable.

A circuit breaker comprises at least two circuit breaker modules, at least one circuit breaker module is provided with the combined handle.

Preferably, the second handle of the combined handle is linked with a contact system in a breaker module provided with the combined handle, the first handle of the combined handle is provided with an operating handle, other breaker modules are provided with operating handles, a linkage part is arranged between the operating handle and the operating handle, the first handle of the combined handle is connected with the operating handles of the other breaker modules by the linkage part, the operating handle synchronously drives the first handle when rotating towards the opening direction, and the first handle drives the second handle to rotate after passing through a gap when rotating, so that other breaker modules are opened firstly and the breaker modules corresponding to the second handle are opened later.

Preferably, the circuit breaker module provided with the combined handle is a control module, and a circuit board and a contact system linked with the second handle of the combined handle are arranged in the control module.

According to the circuit breaker, the first handle is linked with the operating handles of other circuit breaker modules, so that the linkage part drives other conventional modules to be switched off, the second handle drives the control module to be switched off, the contact of the control module is ensured to break small current or not break current, the contact of the control module can be effectively protected, and the reliability of a product is improved.

Drawings

Fig. 1 is a schematic structural view of a multi-pole circuit breaker according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a combination handle according to an embodiment of the present invention;

FIG. 3 is a state diagram of the combination handle of the embodiment of the present invention during closing;

FIG. 4 is a state diagram of the combination handle of the embodiment of the present invention in the closed position;

FIG. 5 is an exploded view of a combination handle according to an embodiment of the present invention;

FIG. 6 is a schematic view of the construction of a first handle of an embodiment of the present invention;

fig. 7 is a schematic structural view of a second handle according to an embodiment of the present invention.

Detailed Description

The following description will further describe the embodiment of the combination handle of the present invention with reference to the embodiments shown in fig. 1 to 7. The combination handle of the present invention is not limited to the description of the following embodiments.

As shown in fig. 2 to 5, the combined handle of the present invention includes a first handle 100 and a second handle 200 which are separately arranged, one of the first handle 100 and the second handle 200 is provided with a groove 2, the other is provided with a protrusion 1 which is matched with the groove 2, a gap exists between the protrusion 1 and the groove 2, the protrusion 1 moves in the groove 2 and passes through the gap when the first handle 100 rotates, and the second handle 200 is driven to rotate after the protrusion 1 contacts with the sidewall of the groove 2.

According to the combined handle, the first handle 100 and the second handle 200 are matched with the groove 2 through the bump 1, and the gap exists between the bump 1 and the groove 2, so that the bump 1 firstly moves to the side wall of the groove 2 for an idle stroke when the first handle 100 is switched off, and when the bump 1 is contacted with the side wall of the groove 2, the second handle 200 is driven to start to rotate through the acting force between the bump 1 and the side wall of the groove 2, so that the first handle 100 and the second handle 200 are ensured to rotate sequentially first and then, and the combined handle is convenient to operate, safe and reliable.

As shown in fig. 1, the present embodiment is a multi-pole circuit breaker, which includes at least two circuit breaker modules, and at least one of the circuit breakers is provided with the combination handle. The second handle 200 of the combined handle is linked with a contact system in a breaker module provided with the combined handle, the first handle 100 is provided with an operating handle 110, other breaker modules are provided with operating handles 300, a linkage piece 5 is arranged between the operating handle 110 and the operating handle 300, the first handle 100 of the combined handle is connected with the operating handles 300 of the other breaker modules through the linkage piece 5, when the operating handles 300 rotate towards the opening direction, the first handle 100 is synchronously driven, and when the first handle 100 rotates, the second handle 200 is driven to rotate after passing through the gap, so that other breaker modules are opened firstly, and the breaker modules corresponding to the second handle 200 are opened later. The operating handle 300 and the first handle 100 of other circuit breaker modules can synchronously rotate towards the opening direction by operating the linkage piece 5, or the first handle 100 is driven by the linkage piece 5 to synchronously rotate towards the opening direction when the operating handle 300 rotates towards the opening direction due to fault tripping of other circuit breaker modules, and after the first handle 100 rotates through an idle stroke formed by the gap, the second handle 200 is driven to rotate after the convex block 1 is contacted with the side wall of the groove 2, so that the corresponding circuit breaker module connected with the combined handle is opened.

Preferably, the breaker module with the combined handle is a control module 4, a circuit board and a contact system linked with the second handle 200 are arranged in the control module 4, and the operating handle 110 on the first handle 100 is connected with the operating handle 300 of another breaker module outside the control module 4 through a linkage 5. The combined handle of this embodiment is used for controlling a plurality of circuit breaker modules and opens the brake in proper order, and linkage 5 drives operating handle 300 and combined handle synchronization action, drives multipolar circuit breaker separating brake, and when operating handle 300 drives other circuit breaker modules that correspond and opens the brake, drive first handle 100 in step, first handle 100 rotates an idle stroke earlier and then drives second handle 200 for other circuit breaker modules open the brake earlier afterwards, rethread second handle 200 drives control module 4 back and opens the brake, guarantees that control module 4's contact divides the disconnected undercurrent or does not divide the outage and flows, can effectively protect control module 4 contact, and then improves the reliability of product.

It is understood that the combined handle may be used to control a plurality of circuit breaker modules to be sequentially switched on in other embodiments, and all of the embodiments are within the protection scope of the present invention. In addition, the operating handle 300 of another circuit breaker module outside the control module 4 is a conventional one, and can drive the moving contact and the fixed contact of each circuit breaker module to contact and separate.

As shown in fig. 1, the present embodiment is two circuit breaker modules, the two circuit breaker modules are a conventional module 3 and a control module 4, a contact system including a moving contact and a fixed contact is disposed in the conventional module 3, a circuit board (not shown) and a contact system including a moving contact and a fixed contact are disposed in the control module 4, the first handle 100 and the second handle 200 are disposed in the control module 4, an operating handle 300 is disposed in the conventional module 3, an operating handle 110 on the first handle 100 is connected to the operating handle 300 through a linkage 5, the operating handle 300 is linked with the contact system of the conventional module 3 through an operating mechanism, the second handle 200 is linked with the contact system of the control module 4 through an operating mechanism, the operating handle 300 and the second handle 200 are used for driving the moving contact of the respective contact system to move and cooperate with the fixed contact, the protrusion 1 of the present embodiment is disposed on the first handle 100, the groove 2 is arranged on the second handle 200, when the operating handle 300 drives the conventional module 3 to be switched off, the first handle 100 firstly drives the projection 1 to move in the groove 2, and when the side wall of the groove 2 is contacted with the projection 1, the projection 1 pushes the side wall of the groove 2 to drive the control module 4 to be switched off, so that the conventional module 3 is switched off before the control module 4. It can be understood that the positions of the projection 1 and the groove 2 can be interchanged, and the purpose of switching off in sequence can be also achieved by changing the projection 1 on the second handle 200 into the groove 2 and changing the groove 2 on the first handle 100 into the projection 1. The control module can be a control module provided with an automatic opening and closing motor and the like. The circuit breaker module can also be of other types, such as a module with an earth leakage protection function or a module with a remote control function, etc., and can be spliced together for use, which belongs to the protection scope of the utility model.

As shown in fig. 5-7, the axes of the first handle 100 and the second handle 200 are overlapped, the first handle 100 is disposed on one side above the second handle 200 along the axis direction, the side of the first handle 100 is provided with the operating handle 110, the operating handle 110 is linked with other circuit breakers through the linking piece 5, the first handle 100 and the second handle 200 respectively comprise an outer cylinder and an inner cylinder, and four connecting ribs connected to the respective outer cylinder and the inner cylinder, and the inner cylinders of the first handle 100 and the second handle 200 respectively rotate on the fixed shaft 6 of the circuit breaker module; the convex block 1 is formed by protruding one section of arc surface of the outer cylinder of the first handle 100 towards the second handle 200, the convex block 1 is in an arc surface structure, a left driving surface 11 and a right driving surface 12 are respectively arranged at two circumferential ends of the first handle 100 of the convex block 1, and an included angle between the left driving surface 11 and the right driving surface 12 is alpha; the groove 2 is formed by sinking a section of arc surface of the outer cylinder of the second handle 200, the groove 2 is of an arc surface structure, the groove 2 is respectively provided with a left side wall 21 and a right side wall 22 at two circumferential ends of the second handle 200, an included angle between the left side wall 21 and the right side wall 22 is beta, the distance between the lug 1 and the groove 2 to the axial line of the first handle 100 and the axial line of the second handle 200 are equal, and beta-alpha is larger than 0. Preferably, the groove 2 is located between two connecting ribs of the second handle 200. In addition, other structures, such as solid structures, may be adopted in place of the structures of the outer cylinder and the inner cylinder for the first handle 100 and the second handle 200, which falls within the protection scope of the present invention.

As shown in fig. 2 to 7, a limiting block 210 for limiting a rotation angle of the second handle 200 is disposed on the second handle 200, the limiting block 210 can limit a farthest position of the rotation of the second handle 200, a limiting table 220 matched with the limiting block 210 is disposed on a housing of the control module 4 to limit a position of the second handle 200 when the second handle is switched on, and when a moving contact of the control module 4 contacts a stationary contact, an included angle between a limiting surface 211 on the limiting block 210 and a blocking surface 221 on the limiting table 220 is γ. If γ is equal to 0, the second handle 200 does not rotate any more, and the moving contact and the static contact are kept at the position just in contact, and if γ is not equal to 0, the second handle 200 can continue to rotate under the driving of the first handle 100, and the moving contact is continuously pushed towards the direction of the static contact to realize the over travel, so the over travel of the product can be adjusted by adjusting the magnitude of γ, the smaller the γ is, and the larger the over travel is on the contrary.

Further, a connecting block 230 connected with an operating mechanism is arranged on the second handle 200, and the connecting block 230 is connected with the limit block 210. Specifically, the second handle 200 is provided with a connecting block 230 at one end of the limiting block 210 away from the limiting surface 211, the connecting block 230 is connected with one end of the limiting block 210 away from the limiting surface 211, the connecting block 230 is provided with a connecting hole 231 matched with the operating mechanism, and a connecting rod 232 of the operating mechanism is inserted into the connecting hole 231 to be rotatably connected. The operating mechanism is in the prior art, is usually a four-bar or multi-bar structure, and comprises a plurality of rotating levers, wherein when two levers are mutually in hasp fit, the whole operating mechanism keeps balance, the operating mechanism can be driven to drive the corresponding moving contacts to act through a combined handle, and when the two levers are buckled, the whole operating mechanism loses balance.

The limiting block 210 is arranged at the position of the connecting block 230 on the second handle 200, the overtravel adjusting function of the control module 4 can be achieved without changing the structure of the existing circuit breaker, the novel multifunctional electric breaker has the advantages of being simple in structure and high in practicability, the limiting block 210 and the connecting block 230 are connected, the strength of the limiting block 210 and the strength of the connecting block 230 are improved, and the novel multifunctional electric breaker is not easy to damage.

As shown in fig. 2 to 3, the first handle 100 is provided with an elastic member 7 connected to the circuit breaker module housing, and the elastic member 7 is used for driving the first handle 100 to reset. The first handle 100 of the elastic element 7 rotates towards the closing direction to reset so that the convex block 1 is limited with the side wall of one side of the groove 2, so that the first handle 100 needs to pass through the gap and then to be in driving fit with the other side wall of the groove 2 when rotating towards the opening direction, the elastic member 7 is a torsion spring, the middle part of the torsion spring is sleeved on the first handle 100, two ends of the torsion spring are respectively limited with the first handle 100 and the breaker module shell, specifically, an intermediate sleeve 70 is arranged at one end of the first handle 100 far away from the second handle 200, a first barb 71 arranged at a distance from the intermediate sleeve 70 is arranged on the first handle 100, a fixing column 73 is arranged on the casing of the control module 4, the fixing column 73 is provided with a second inverted hook 72 which is arranged at an interval with the middle sleeve 70, the middle part of the torsion spring is sleeved outside the middle sleeve 70, and two ends of the torsion spring are respectively limited with the first inverted hook 71 and the second inverted hook 72.

The combined handle of the utility model has the following closing process:

fig. 4 shows a switching-on position, fig. 3 shows an intermediate position of a switching-on process, the switching-on process is a process of moving from a switching-off position to a switching-on position, when switching-on begins (not shown in the figure), the linkage member 5 rotates clockwise, the linkage member 5 drives the first handle 100 and the operating handle 300 to rotate at the same time, because the first handle 100 is driven by the elastic member 7, the left driving surface 11 on the left side of the bump 1 contacts with the left sidewall 21, an idle stroke is provided between the right driving surface 12 on the right side of the bump 1 and the right sidewall 22, the bump 1 can push the left sidewall 21 through the left driving surface 11 without passing through the idle stroke, and drive the second handle 200 to rotate clockwise, the second handle 200 drives the operating mechanism of the control module 4 through the connecting rod 232, when the movable contact of the control module 4 moves to the position shown in fig. 3, the movable contact is in contact with the fixed contact, but an included angle γ is formed between the upper limiting block 210 and the blocking block of the second handle 200, the stopper 210 and the stopper are not yet in contact with each other.

With the continuous rotation of the second handle 200, the moving contact is pressed tightly on the stationary contact to realize the overtravel, until the position shown in fig. 4, the upper limit block 210 of the second handle 200 is in contact with the stop block for limiting, the second handle 200 stops rotating, the included angle between the right driving surface 12 and the right side wall 22 is beta-alpha-delta, delta is greater than 0 degrees, and the product is closed.

The opening process of the combined handle of the utility model is as follows:

manually operating the opening: the linkage member 5 rotates anticlockwise, the linkage member 5 simultaneously drives the first handle 100 and the operating handle 300 to rotate, meanwhile, the lug 1 drives the right driving surface 12 to move close to the right side wall 22 in the groove 2, after the lug 1 passes through a section of idle stroke, until the delta is equal to 0 degrees, the right driving surface 12 is in contact with the right side wall 22, the second handle 200 starts to be pushed to rotate anticlockwise, the second handle 200 drives the moving contact and the fixed contact to be separated through the operating mechanism of the control module 4, and then the control module 4 is opened.

When the fault is automatically tripped, the product is tripped under the action of the reaction force of the operating mechanism, when the operating mechanism of the conventional module 3 is tripped, the operating handle 300 on the conventional module 3 drives the first handle 100 to rotate to the tripping position through the linkage part 5, and the first handle 100 drives the second handle 200 to trip through the lug 1.

The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.

Claims

1. A combination handle, its characterized in that: including first handle (100) and second handle (200) that the components of a whole that can function independently set up, one in first handle (100) and second handle (200) is equipped with recess (2), and the other is equipped with recess (2) complex lug (1), there is the clearance between lug (1) and recess (2), and lug (1) first removes the process in recess (2) when first handle (100) rotates the clearance drives second handle (200) rotation after the lateral wall contact of lug (1) and recess (2).

2. The combination handle of claim 1, wherein: the handle is characterized in that an operating handle (110) is arranged on the first handle (100), a connecting block (230) is arranged on the second handle (200), and a connecting hole (231) matched with the operating mechanism is formed in the connecting block (230).

3. The combination handle of claim 1, wherein: and a limiting block (210) is arranged on the second handle (200), and a limiting table (220) matched with the limiting block (210) is arranged in the corresponding breaker module to limit the position of the second handle (200) during closing.

4. The combination handle of claim 1, wherein: and the first handle (100) is provided with an elastic part (7) connected with the shell of the circuit breaker module and used for driving the first handle (100) to reset so that the convex block (1) is limited with the side wall at one side of the groove (2).

5. The combination handle of claim 1, wherein: the axes of the first handle (100) and the second handle (200) are overlapped, and the first handle (100) is arranged on one side of the second handle (200) along the axis direction.

6. The combination handle of claim 5, wherein: lug (1) and recess (2) are cambered surface structure respectively, and lug (1) is equipped with left drive face (11) and right drive face (12) respectively at first handle (100) circumferential both ends, and the contained angle between left drive face (11) and the right drive face (12) is alpha, and recess (2) are equipped with left side wall (21) and right side wall (22) respectively at second handle (200) circumferential both ends, and the contained angle between left side wall (21) and right side wall (22) is beta, and beta-alpha > 0.

7. The combination handle of claim 1, wherein: the projection (1) is arranged on the first handle (100), and the groove (2) is arranged on the second handle (200).

8. A circuit breaker comprising at least two circuit breaker modules, characterized in that: at least one of said circuit breaker modules is provided with a modular handle according to any of claims 1-7.

9. A circuit breaker according to claim 8, wherein: the second handle (200) of the combined handle is linked with a contact system in a breaker module provided with the combined handle, an operating handle (110) is arranged on a first handle (100) of the combined handle, operating handles (300) are arranged on other breaker modules, a linkage piece (5) is arranged between the operating handle (110) and the operating handles (300), the first handle (100) of the combined handle and the operating handles (300) of the other breaker modules are connected through the linkage piece (5), when the operating handles (300) rotate towards the opening direction, the first handle (100) is synchronously driven, and when the first handle (100) rotates, the second handle (200) is driven to rotate through a gap, so that the other breaker modules are opened first, and the breaker modules corresponding to the second handle (200) are opened later.

10. A circuit breaker according to claim 9, wherein: the circuit breaker module provided with the combined handle is a control module (4), and a circuit board and a contact system linked with a second handle (200) of the combined handle are arranged in the control module (4).