CN109346385B - Handle mechanism of miniature circuit breaker - Google Patents
Handle mechanism of miniature circuit breaker Download PDFInfo
- Publication number
- CN109346385B CN109346385B CN201811363075.0A CN201811363075A CN109346385B CN 109346385 B CN109346385 B CN 109346385B CN 201811363075 A CN201811363075 A CN 201811363075A CN 109346385 B CN109346385 B CN 109346385B
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- China
- Prior art keywords
- handle
- circuit breaker
- brake
- miniature circuit
- boss
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- 238000010030 laminating Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
Landscapes
- Breakers (AREA)
Abstract
A handle mechanism for a miniature circuit breaker. The handle and the brake piece of the existing breaker are not easy to install and are easy to fall out. The method is characterized in that: be equipped with open slot (41) on the handle circumference wall, be equipped with boss (411) in the open slot, the brake piece axial be equipped with boss joint complex fixed orifices (52), the open slot inner wall is equipped with spacing arch (411), the brake piece circumference with spacing arch corresponds and is equipped with dodges groove (53), the brake piece is including stretching into the time the spacing arch corresponds to be located dodge the first position in the inslot and work as the fixed orifices with after the boss installs the second position above the brake piece is located to spacing arch corresponds. The invention provides a handle mechanism of a miniature circuit breaker, wherein after a brake piece is installed in a handle, the brake piece is prevented from falling out through limiting of a limiting protrusion, and the installation is more stable.
Description
Technical Field
The invention belongs to the field of piezoelectric devices, and particularly relates to a handle mechanism of a miniature circuit breaker.
Background
The miniature circuit breaker has the characteristics of advanced structure, reliable performance, strong breaking capacity, attractive and small appearance and the like, and is mainly used for places with alternating current of 50HZ or 60HZ, rated voltage of below 400V and rated working current of below 125A. It can be used for the overload and short-circuit protection of office building, house and similar building, distribution line and equipment, and can also be used for the infrequent on-off operation and conversion of line, and can be used in various places of industry, business, high-rise and civil houses.
The main components in the miniature circuit breaker are an operating mechanism and a contact device, and the functions of opening and closing a circuit, overload and short-circuit protection are realized by configuring a corresponding time delay and instantaneous mechanism. In the breaking technology, short-circuit current is utilized to generate electric repulsive force at the contact points of the movable contact and the static contact so as to draw an arc in advance before the instantaneous mechanism does not act, and the aim of limiting current is achieved by means of an arc resistor formed by an arc.
In the prior art, when in closing operation, the handle rotates to drive the U-shaped bolt and further drive the lock catch to move, and the lock catch drives the contact system to be closed. During operation, the torsion spring torque of the handle increases with the angle of rotation of the handle, and the contact system closes during the gradual increase of the torsion spring torque. The closing speed of the contact system is thus still related to the manual speed, which affects the reliability of the closing and the operating life of the product. Therefore, the circuit breaker needs a quick closing function to improve reliability of the product.
Therefore, most of the existing handles are provided with braking parts which are matched with the support to realize the function of quick closing, however, the existing handles and the braking parts are not easy to install and are easy to fall out.
Disclosure of Invention
In order to overcome the defects of the background technology, the invention provides a handle mechanism of a miniature circuit breaker, which mainly solves the problems that the installation of a handle and a braking piece of the traditional circuit breaker is difficult and the handle and the braking piece are easy to fall out.
The technical scheme adopted by the invention is as follows:
the utility model provides a handle mechanism of miniature circuit breaker, includes handle and brake piece, be equipped with the open slot on the handle circumference wall, be equipped with the boss in the open slot, brake piece axial be equipped with boss joint complex fixed orifices, the open slot inner wall is equipped with spacing arch, brake piece circumference with spacing arch corresponds and is equipped with dodges the groove, brake piece is including when stretching into spacing arch corresponds to be located dodge the first position in inslot and with dodging the groove
And when the fixing hole and the boss are installed, the limiting protrusion is correspondingly arranged at a second position above the braking piece.
The limit protrusion is provided with three limit protrusions.
The surface of the limiting protrusion is a plane.
The brake piece circumference wall is last still to be equipped with the fender arm, the handle includes the curb plate, fender arm side face with the laminating of the side face of curb plate.
The handle comprises a rotating shaft for hinging the shell, and the upper end of the rotating shaft is provided with the boss.
And a through groove is formed in one side of the bottom of the open groove.
The lower end face of the side plate exceeds the lower end face of the braking piece.
The beneficial effects of the invention are as follows: the invention provides a handle mechanism of a miniature circuit breaker, wherein after a brake piece is installed in a handle, the brake piece is prevented from falling out through limiting of a limiting protrusion, and the installation is more stable.
Drawings
Fig. 1 is an exploded view of one embodiment of the present invention.
Fig. 2 is a schematic perspective view of a handle according to an embodiment of the present invention.
Fig. 3 is a schematic perspective view of a handle and brake member according to one embodiment of the present invention (first position).
Fig. 4 is a schematic cross-sectional view (first position) of a handle and brake of one embodiment of the present invention.
Fig. 5 is a schematic perspective view of a handle and brake member according to one embodiment of the present invention (second position).
FIG. 6 is a schematic cross-sectional view of a handle and brake of one embodiment of the present invention (second position).
Detailed Description
The invention is further described below with reference to the accompanying drawings: as shown in the figure, the handle mechanism of the miniature circuit breaker comprises a handle 4 and a braking piece 5, an open slot 41 is formed in the circumferential wall of the handle, a boss 411 is arranged in the open slot, a fixing hole 52 matched with the boss in a clamping manner is axially formed in the braking piece, a limiting protrusion 412 is arranged on the inner wall of the open slot, an avoidance slot 53 is correspondingly formed in the circumferential direction of the braking piece and corresponds to the limiting protrusion when the braking piece is inserted, the limiting protrusion is correspondingly arranged at a first position in the avoidance slot, and the fixing hole is used with the boss is arranged at a second position above the braking piece after the fixing hole is correspondingly arranged in the boss. When the brake is installed, the brake is pressed downwards to be matched with the boss in a clamping way (or in a clearance fit way) and then rotated, the upper end face of the brake is positioned below the limiting boss, the brake is prevented from falling out, the upper end of the opening groove is provided with the limiting boss, the diameter of the brake is smaller than that of the lower end of the opening groove, the brake can be rectangular, after the short side of the brake is rotated relative to the limiting boss, the long side of the brake falls below the limiting boss, the axial direction of the brake is limited, and the brake is prevented from falling out.
In this embodiment, as shown in the figure, three limit protrusions are provided. The space in the open slot can be reasonably utilized, and the use effect is better.
In this embodiment, as shown in the drawing, the surface of the limiting protrusion is a plane. The corresponding braking piece is also a plane surface corresponding to the outer wall at one side of the avoidance groove.
In this embodiment, as shown in the drawing, a blocking arm 54 is further disposed on the circumferential wall of the braking member, and the handle includes a side plate 43, and a side end surface of the blocking arm is attached to a side end surface of the side plate. Compact structure, when the handle rotates, the conduction of the power of being convenient for.
In this embodiment, as shown, the handle includes a shaft 40 for hinge-coupling the housing, and the boss is formed at the upper end of the shaft. The structure is more compact, and no boss is needed to be additionally arranged.
In this embodiment, as shown in the drawing, a through groove 410 is provided on one side of the bottom of the open groove. The brake is conveniently lifted upwards for detachment.
In this embodiment, the lower end surface of the side plate exceeds the lower end surface of the stopper 5 as shown in the figure.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The embodiments described with reference to the drawings are exemplary and intended to be illustrative of the invention and should not be construed as limiting the invention. The examples should not be construed as limiting the invention, but any modifications based on the spirit of the invention should be within the scope of the invention.
Claims (7)
1. A handle mechanism of a miniature circuit breaker, comprising a handle (4) and a braking member (5), characterized in that: the novel anti-theft brake is characterized in that an open slot (41) is formed in the circumferential wall of the handle, a boss (411) is arranged in the open slot, a fixing hole (52) matched with the boss in a clamping mode is axially formed in the brake, a limiting protrusion (412) is arranged on the inner wall of the open slot, an avoidance slot (53) corresponding to the limiting protrusion is formed in the circumferential direction of the brake, and the brake comprises a first position and a first position in the avoidance slot, wherein the first position and the first position are correspondingly arranged in the avoidance slot when the brake stretches into the open slot, and the second position is corresponding to the limiting protrusion
And when the fixing hole and the boss are installed, the limiting protrusion is correspondingly arranged at a second position above the braking piece.
2. The handle mechanism of a miniature circuit breaker of claim 1, wherein: the limit protrusion is provided with three limit protrusions.
3. The handle mechanism of a miniature circuit breaker of claim 2, wherein: the surface of the limiting protrusion is a plane.
4. A handle mechanism for a miniature circuit breaker as claimed in claim 3 wherein: the brake piece circumference wall is last still to be equipped with fender arm (54), the handle includes curb plate (43), fender arm side face with the laminating of the side face of curb plate.
5. The handle mechanism of a miniature circuit breaker of claim 4, wherein: the handle comprises a rotating shaft (40) hinged with the shell, and the upper end of the rotating shaft forms the boss.
6. The handle mechanism of a miniature circuit breaker of claim 5, wherein: a through groove (410) is formed in one side of the bottom of the open groove.
7. The handle mechanism of a miniature circuit breaker of claim 6, wherein: the lower end face of the side plate exceeds the lower end face of the braking piece (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363075.0A CN109346385B (en) | 2018-11-16 | 2018-11-16 | Handle mechanism of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363075.0A CN109346385B (en) | 2018-11-16 | 2018-11-16 | Handle mechanism of miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109346385A CN109346385A (en) | 2019-02-15 |
| CN109346385B true CN109346385B (en) | 2023-12-01 |
Family
ID=65315618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811363075.0A Active CN109346385B (en) | 2018-11-16 | 2018-11-16 | Handle mechanism of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109346385B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2792769A1 (en) * | 1999-04-23 | 2000-10-27 | Entrelec Sa | Incorrect position prevention manual release electrical apparatus switch for circuit breaker, having activating handle/cylindrical section with spring section and stop section element having internal cut out section |
| EP1137037A2 (en) * | 2000-03-17 | 2001-09-26 | AEG Niederspannungstechnik GmbH & Co. KG | Remote control using microswitches for electrical switchgear |
| CN204537957U (en) * | 2015-04-29 | 2015-08-05 | 浙江天正电气股份有限公司 | A kind of circuit breaker being provided with stored energy mechanism |
| CN206148385U (en) * | 2016-09-12 | 2017-05-03 | 范国平 | Miniature circuit breaker and handle components thereof |
| CN107026031A (en) * | 2017-05-05 | 2017-08-08 | 佳电气有限公司 | instantaneous closing structure and switching device |
| CN107230601A (en) * | 2016-07-15 | 2017-10-03 | 上海良信电器股份有限公司 | A kind of external small type circuit breaker operating mechanism of electric energy meter |
| CN108389741A (en) * | 2018-04-26 | 2018-08-10 | 厦门宏发开关设备有限公司 | A kind of protection switch |
| CN208923005U (en) * | 2018-11-16 | 2019-05-31 | 浙江天正电气股份有限公司 | A kind of handle mechanism of miniature circuit breaker |
-
2018
- 2018-11-16 CN CN201811363075.0A patent/CN109346385B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2792769A1 (en) * | 1999-04-23 | 2000-10-27 | Entrelec Sa | Incorrect position prevention manual release electrical apparatus switch for circuit breaker, having activating handle/cylindrical section with spring section and stop section element having internal cut out section |
| EP1137037A2 (en) * | 2000-03-17 | 2001-09-26 | AEG Niederspannungstechnik GmbH & Co. KG | Remote control using microswitches for electrical switchgear |
| CN204537957U (en) * | 2015-04-29 | 2015-08-05 | 浙江天正电气股份有限公司 | A kind of circuit breaker being provided with stored energy mechanism |
| CN107230601A (en) * | 2016-07-15 | 2017-10-03 | 上海良信电器股份有限公司 | A kind of external small type circuit breaker operating mechanism of electric energy meter |
| CN206148385U (en) * | 2016-09-12 | 2017-05-03 | 范国平 | Miniature circuit breaker and handle components thereof |
| CN107026031A (en) * | 2017-05-05 | 2017-08-08 | 佳电气有限公司 | instantaneous closing structure and switching device |
| CN108389741A (en) * | 2018-04-26 | 2018-08-10 | 厦门宏发开关设备有限公司 | A kind of protection switch |
| CN208923005U (en) * | 2018-11-16 | 2019-05-31 | 浙江天正电气股份有限公司 | A kind of handle mechanism of miniature circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109346385A (en) | 2019-02-15 |
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