CN208923007U - A kind of miniature circuit breaker - Google Patents
A kind of miniature circuit breaker Download PDFInfo
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- CN208923007U CN208923007U CN201821962869.4U CN201821962869U CN208923007U CN 208923007 U CN208923007 U CN 208923007U CN 201821962869 U CN201821962869 U CN 201821962869U CN 208923007 U CN208923007 U CN 208923007U
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Abstract
The utility model relates to a kind of miniature circuit breakers, it include breaker body, breaker body includes shell and is set to the intracorporal dynamic contact mechanism of shell and static contact, the dynamic contact mechanism includes compatible moving contact and dynamic bracket, mounting groove compatible with moving contact is provided on dynamic bracket, positioning cylinder is provided in mounting groove, and positioning cylinder and dynamic bracket are an integral molding structure setting, moving contact rear portion is provided with positioning round orifice, intert in positioning round orifice and is provided with the positioning cylinder, and moving contact rear portion is provided with arc sections compatible with mounting groove, the spring of moving being connected with moving contact is also arranged on positioning cylinder.The miniature circuit breaker is convenient for the installation and fixation of moving contact and dynamic bracket, and security performance is high, long service life.
Description
Technical field
The utility model relates to low voltage electrical apparatus technology fields, and in particular to a kind of miniature circuit breaker.
Background technique
Miniature circuit breaker is also known as miniature circuit breaker, miniature circuit breaker have advanced structure, reliable performance, strong breaking capacity,
The features such as aesthetic in appearance small and exquisite, is mainly used for exchanging 50HZ or 60HZ, and voltage rating 400V is hereinafter, rated operational current is 63A
Place below.Make office building, the illumination of house and similar building, distribution line and equipment overload and short-circuit protection it
With can also be used as route, infrequently on-off line operation is used with conversion, and it is each to be mainly used for industrial, commercial, high-rise and residential premises etc.
Kind place.
However in the dynamic contact mechanism of existing miniature circuit breaker, moving contact is by way of screw or rivet hot and moving contact
Bracket is mutually permanently connected, and the fixed mode of screw needs on moving contact rack in advance there are threaded hole and by driving screws side
The two is fixedly connected by formula, so that it is cumbersome, and touched when the temperature of moving contact is higher with dynamic in such a way that rivet hot is fixed
The riveted junction of head bracket is easy to appear loosening, can not work normally for dynamic contact mechanism and cause security risk.It is thus right
Existing miniature circuit breaker is improved and is necessary.
Utility model content
For the deficiency of background technique, the utility model provides a kind of miniature circuit breaker, can effectively solve the prior art
The problem of.
The technical scheme adopted by the utility model is a kind of miniature circuit breaker, includes breaker body, breaker sheet
Body includes shell and is set to the intracorporal dynamic contact mechanism of shell and static contact, and the dynamic contact mechanism includes compatible
Moving contact and dynamic bracket move and are provided with mounting groove compatible with moving contact on bracket, be provided with positioning cylinder in mounting groove, and
Positioning cylinder and dynamic bracket are an integral molding structure setting, and moving contact rear portion is provided with positioning round orifice, interts in positioning round orifice and set
It is equipped with the positioning cylinder, and moving contact rear portion is provided with arc sections compatible with mounting groove, is also arranged on positioning cylinder
There is the spring of moving being connected with moving contact.
Further, spacing block set compatible with the spring of moving, limit convex are provided on the side wall of the mounting groove
Block and mounting groove are an integral structure setting.
Further, it is additionally provided with limiting groove compatible with the spring of moving in the middle part of the moving contact, limits recessed
Arc transition is provided on slot.
Further, one end of the spring of moving be provided with the spacing block set cooperate, the other end be provided with
The limit hook that the limiting groove is connected, spring of moving are an integral structure setting.
Further, the tripping positioning column and locating location column of integral type, tripping positioning are additionally provided on the dynamic bracket
It is arranged with the tripping matched and lock respectively on column and locating location column.
Further, the shell includes pedestal and upper cover, and pedestal and upper cover are fixed to each other by closing-up mode
Connection is provided with bracket positioning column compatible with the dynamic bracket on pedestal.
Further, the top of the pedestal and upper cover is provided with compatible handle positioning column, and handle positioning column
On be arranged with matched operation handle, operation handle is connected with each other by setting operator link and the tripping.
Further, the front end of the moving contact is provided with movable contact compatible with the static contact, sets on movable contact
It is equipped with conductive silver point.
In conclusion the utility model has the following beneficial effects:
1, it by way of setting positioning cylinder and spring of moving, substitutes existing fixed dynamic by way of screw or rivet hot
Contact and dynamic bracket, play the role of the installation and fixation convenient for moving contact, while dynamic contact mechanism being avoided to can not work normally
Security risk caused by and improves the overall performance of miniature circuit breaker；
2, by way of setting spacing block set and limiting groove, anti-retaining spring, which is detached from, guarantees the normal work of dynamic contact mechanism
Make, improves security performance；Simultaneously by setting tripping, lock and operation handle, to guarantee dynamic contact mechanism can not be voluntarily
In the case where disconnecting circuit can manual disconnecting circuit, improve the security performance of miniature circuit breaker.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of dynamic contact mechanism.
Fig. 3 is the structural schematic diagram of moving contact in Fig. 2.
Fig. 4 is the structural schematic diagram that bracket is moved in Fig. 2.
Fig. 5 is the structural schematic diagram for removing upper cover in Fig. 1.
Fig. 6 is the schematic diagram of upper cover and pedestal in Fig. 1.
1, static contact in figure；2, moving contact；3, bracket is moved；4, mounting groove；5, positioning cylinder；6, positioning round orifice；7, circular arc
Portion；8, it moves spring；9, spacing block set；10, limiting groove；11, hook is limited；12, movable contact；13, tripping positioning column；14, it locks
Detain positioning column；15, tripping；16, it latches；17, pedestal；18, upper cover；19, bracket positioning column；20, handle positioning column；21, it operates
Handle.
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
Embodiment one, as shown in fig. 1 to fig. 4, a kind of miniature circuit breaker includes breaker body, breaker body packet
It has included shell and has been set to the intracorporal dynamic contact mechanism of shell and static contact 1, the dynamic contact mechanism includes compatible dynamic
Contact 2 and dynamic bracket 3 move and are provided with mounting groove 4 compatible with moving contact 2 on bracket 3, be provided with setting circle in mounting groove 4
Column 5, and positioning cylinder 5 and dynamic bracket 3 are an integral molding structure setting, and chamfered transition, moving contact 2 are provided on positioning cylinder 5
Rear portion is provided with positioning round orifice 6, interts in positioning round orifice 6 and is provided with the positioning cylinder 5, and 2 rear portion of moving contact is provided with
Arc sections 7 compatible with mounting groove 4, arc sections 7 are installed and are used convenient for moving contact 2, are also arranged with and move on positioning cylinder 5
Moving contact 2 is connected on dynamic bracket 3 under the cooperation of positioning cylinder 5, can keep away by what contact 2 was connected move spring 8, moving contact 8
The fixed mode bring of screw mode bring security risk that is cumbersome, and avoiding rivet hot fixed, spring 8 of moving are exempted from
Buffer function is played when can also be contacting and separating to moving contact 2 and static contact 1, reduce the abrasion of moving contact 2 and then is extended small-sized
The service life of breaker；It is provided with spacing block set 9 compatible with the spring 8 of moving on the side wall of the mounting groove 4, limits
Convex block 9 is avoided that spring 8 of moving is detached from out of mounting groove 4, and spacing block set 9 and mounting groove 4 are an integral structure setting；The dynamic touching
First 2 middle part is additionally provided with limiting groove 10 compatible with the spring 8 of moving, and limiting groove 10 is convenient for spring 8 and the dynamic touching of moving
First 2 are connected, and are provided with arc transition on limiting groove 10；Described one end for moving spring 8 is provided with and 9 phase of spacing block set
Mutually cooperation, the other end are provided with the limit hook 11 being connected with the limiting groove 10, the limit anti-retaining spring 8 of hook 11 from
It is detached from limiting groove 10, spring 8 of moving is an integral structure setting；The front end of the moving contact 2 is provided with and the static contact 1
Compatible movable contact 12 is provided with conductive silver point on movable contact 12, and conductive silver point can improve moving contact and static contact contact position
Electric conductivity.
Embodiment two on the basis of example 1, is additionally provided with one on the dynamic bracket 3 as shown in Fig. 5 to Fig. 6
The tripping positioning column 13 and locating location column 14 of formula are arranged on tripping positioning column 13 and locating location column 14 respectively and to match
Tripping 15 and lock 16；The shell includes pedestal 17 and upper cover 18, and pedestal 17 and upper cover 18 pass through closing-up mode phase
It is mutually fixedly connected, bracket positioning column 19 compatible with the dynamic bracket 3 is provided on pedestal 17；The pedestal 17 and upper cover 18
Top be provided with compatible handle positioning column 20, and matched operation handle is arranged on handle positioning column 20
21, operation handle 21 is connected with each other by setting operator link and the tripping 15, and operation handle 21 drives tripping 15 and lock
16 generation movements play the effect of disconnecting circuit so that moving contact 2 and static contact 1 are separated from each other.
In conclusion the utility model has the following beneficial effects:
1, by way of setting positioning cylinder 5 and spring 8 of moving, substitution is existing to be fixed by way of screw or rivet hot
Moving contact 2 and dynamic bracket 3, play the role of the installation and fixation convenient for moving contact 2, while avoiding 2 mechanism of moving contact can not be just
Often work and caused by security risk, improve the overall performance of miniature circuit breaker；
2, by way of setting spacing block set 9 and limiting groove 10, anti-retaining spring 8, which is detached from, guarantees 2 mechanism of moving contact
It works normally, improves security performance；Simultaneously by setting tripping 15, lock 16 and operation handle 21, to guarantee 2 machine of moving contact
Structure can not voluntarily disconnecting circuit in the case where can manual disconnecting circuit, improve the security performance of miniature circuit breaker.
Every technical staff's notice: although the utility model is described according to above-mentioned specific embodiment, this
The invention thought of utility model is not limited to that utility model, and any repacking with inventive concept will all be included in this specially
In sharp scope of patent protection.
Claims (8)
- It include breaker body 1. a kind of miniature circuit breaker, breaker body includes shell and to be set to shell intracorporal Dynamic contact mechanism and static contact, it is characterised in that: the dynamic contact mechanism includes compatible moving contact and dynamic bracket, moves branch It is provided with mounting groove compatible with moving contact on frame, positioning cylinder is provided in mounting groove, and positioning cylinder is with dynamic bracket Integrated formed structure setting, moving contact rear portion are provided with positioning round orifice, intert in positioning round orifice and be provided with the positioning cylinder, And moving contact rear portion is provided with arc sections compatible with mounting groove, be also arranged on positioning cylinder be connected with moving contact it is dynamic Spring.
- 2. a kind of miniature circuit breaker according to claim 1, it is characterised in that: be provided on the side wall of the mounting groove with The compatible spacing block set of the spring of moving, spacing block set and mounting groove are an integral structure setting.
- 3. a kind of miniature circuit breaker according to claim 2, it is characterised in that: be additionally provided in the middle part of the moving contact with The spring of moving compatible limiting groove is provided with arc transition on limiting groove.
- 4. a kind of miniature circuit breaker according to claim 3, it is characterised in that: one end of the spring of moving is provided with and institute Spacing block set mutual cooperation is stated, the other end is provided with the limit hook being connected with the limiting groove, and spring of moving is integral type Structure setting.
- 5. a kind of miniature circuit breaker described in any one in -4 according to claim 1, it is characterised in that: on the dynamic bracket also It is provided with the tripping positioning column and locating location column of integral type, is arranged with and matches respectively on tripping positioning column and locating location column Tripping and lock.
- 6. a kind of miniature circuit breaker according to claim 5, it is characterised in that: the shell includes pedestal and upper cover, Pedestal and upper cover are mutually permanently connected by closing-up mode, and it is fixed that bracket compatible with the dynamic bracket is provided on pedestal Position column.
- 7. a kind of miniature circuit breaker according to claim 6, it is characterised in that: the top of the pedestal and upper cover is respectively provided with There is compatible handle positioning column, and be arranged with matched operation handle on handle positioning column, operation handle is by setting It sets operator link and the tripping is connected with each other.
- 8. a kind of miniature circuit breaker according to claim 1, it is characterised in that: the front end of the moving contact is provided with and institute The compatible movable contact of static contact is stated, is provided with conductive silver point on movable contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821962869.4U CN208923007U (en) | 2018-11-27 | 2018-11-27 | A kind of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821962869.4U CN208923007U (en) | 2018-11-27 | 2018-11-27 | A kind of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208923007U true CN208923007U (en) | 2019-05-31 |
Family
ID=66712530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821962869.4U Active CN208923007U (en) | 2018-11-27 | 2018-11-27 | A kind of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208923007U (en) |
-
2018
- 2018-11-27 CN CN201821962869.4U patent/CN208923007U/en active Active
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| GR01 | Patent grant |