CN206441682U - Miniature circuit breaker - Google Patents
Miniature circuit breaker Download PDFInfo
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- CN206441682U CN206441682U CN201720003610.6U CN201720003610U CN206441682U CN 206441682 U CN206441682 U CN 206441682U CN 201720003610 U CN201720003610 U CN 201720003610U CN 206441682 U CN206441682 U CN 206441682U
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- lever
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- circuit breaker
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Abstract
A kind of miniature circuit breaker, the housing constituted including base and lid shell, operating mechanism and handle are provided with housing, described operating mechanism includes lever, described handle, lever are articulated on base respectively, and lever is provided with boss is indicated, described lid shell is provided with indicating the indication window that boss is correspondingly arranged, when driving handle makes circuit-breaker switching on-off or dropout, described instruction boss shows different colors by indication window respectively.Miniature circuit breaker of the present utility model is in different positions by lever, so that the instruction boss on lever shows different colors by the indication window on lid shell, user by indication window can in real time, get information about the on off operating mode of circuit breaker internal corresponding to different colours, ensure that the safety of the person and circuit.
Description
Technical field
The utility model is related to Low Voltage Electrical Apparatus, particularly a kind of miniature circuit breaker.
Background technology
Miniature circuit breaker it is main by plastic casing, operating mechanism, delayed releasing mechanism, instantaneous trip mechanism, arc-control device,
Contact apparatus etc. is constituted.When circuit breaker handle is pulled to when indicating " ON " position, product is in an ON state；When circuit breaker handle is pulled
To when indicating " OFF " position, product is off.But a certain class miniature circuit breaker in the market is when in use,
User can only judge the break-make of miniature circuit breaker by the sensing of handle, and can not judge from the outward appearance of breaker inside it
On off operating mode, once the mechanism that circuit breaker internal is connected with handle breaks down, will influence user to breaker break-make shape
The judgement of state, causes the security presence risk of the person and circuit, and maintenance to circuit etc. to be made troubles.
Utility model content
The purpose of this utility model is to overcome the defect of prior art there is provided one kind is simple in construction, break-make indicate clearly,
Safe and reliable miniature circuit breaker.
To achieve the above object, the utility model employs following technical scheme：
A kind of miniature circuit breaker, including the housing that base 1 is constituted with lid shell 2, are provided with operating mechanism 8 and handle in housing
7, described operating mechanism 8 includes lever 81, lock 82, contact and supports 83, connecting rod 84 and tripping 85, described handle 7, thick stick
Bar 81 and contact support that 83 are articulated on base 1 respectively, and described lever 81 supports that 83 are connected by excess of stroke torsion spring and contact,
Described lock 82 and tripping 85 is articulated on lever 81 and forms releasably engageable mechanical locking structure, described tripping 85 and hand
Handle 7 is hinged by connecting rod 84, and lever 81 is provided with the instruction boss 811 being fixedly connected with lever 81, described lid shell 2 and set
Have with indicating the indication window 21 that is correspondingly arranged of boss 811, make circuit-breaker switching on-off or breaker because of overload when driving handle 7 and
Short circuit makes lock 82 and tripping 85 lock or unlock when threading off, and described instruction boss 811 is shown respectively by indication window 21
Go out different colors.
Optionally, the end of described instruction boss 811 is provided with state instruction face 812, the state instruction face 812
End face is provided with the first index plane 813 and the second index plane 814, and described the first index plane 813 and the second index plane 814 is arranged side by side
The state that different colors are used to represent breaker is set and presents, lever 81 can drive the instruction motion of boss 811 to make first
The index plane 814 of index plane 813 and second is appeared alternatively in before indication window 21 with the movement of lever 81.
Optionally, the lever 81 and indicate that boss 811 is formed in one the red lever of structure, and indicated first
Retain red on the ink of bat printing green, the second index plane 814 on face 813.
Optionally, the side wall of the lever 81 for indicating the lower section of boss 811 is provided with the spring card slot for being used for installing stage clip,
One end of the stage clip is connected with spring card slot, and the other end is connected with the side wall of base 1.
Optionally, the end of the side of lever 81 is provided with mounting hole 817, and described mounting hole 817 is with being arranged on contact
The pivot hole common rotation on 83 is supported to be arranged in the mechanism rotating shaft of base 1, the opposite side of lever 81 is also arranged at intervals with first
The protruding shaft 816 of protruding shaft 815 and second, the first described protruding shaft 815 and the second protruding shaft 816 make with tripping 85 and the pivot joint of lock 82 respectively
Tripping 85 is obtained to be correspondingly arranged with lock 82 and interlocking can be formed.
Optionally, the side wall of the end of lid shell 2 is provided with the opening 22 being engaged with handle 7, the end of the handle 7
Through opening 22 set and can in opening 22 rotation-limited, described indication window 21 be disposed adjacent with opening 22 and with
Indicate that the state instruction face 812 on boss 811 is oppositely arranged.
Optionally, moving contact 3 and static contact 4 are installed, described handle 7 is driven by operating mechanism 8 on the base 1
Moving contact 3, which is swung, to be made the contact end of moving contact 3 and static contact 4 be contacting and separating to realize the break-make of circuit.
Optionally, bimetal leaf 9 and electromagnetic tripping apparatus 10, the described correspondence of bimetal leaf 9 are installed on the base 1
It is arranged between the drive link 821 extended on the contact end of moving contact 3 and lock 82, described electromagnetic tripping apparatus 10 and lock
Button 82 is correspondingly arranged.
Optionally, moving contact 3, static contact 4, run-on tab 5, arc-chutes 6, bimetal leaf 9 and electricity are installed on the base 1
Magnetic trip gear 10, described moving contact 3 is arranged on that contact is supported on 83 and the contact end of moving contact 3 protrudes operating mechanism 8
It is correspondingly arranged with static contact 4, electromagnetic tripping apparatus 10 is arranged on the top of arc-chutes 6 and corresponding with the lock 82 of operating mechanism 8
Set, static contact 4 is arranged between electromagnetic tripping apparatus 10 and arc-chutes 6 and is connected with the coil of electromagnetic tripping apparatus 10, quiet
The horizontal extension 41 of contact 4 is parallel with the arc extinguishing grid pieces in the axial direction and arc-chutes 6 of electromagnetic tripping apparatus 10, bimetal leaf 9
The side of arc-chutes 6 is arranged on, described run-on tab 5 is arranged between arc-chutes 6 and bimetal leaf 9.
Optionally, described run-on tab 5 connects including the flat segments 51 being sequentially connected, V-type striking section 52 and with bimetal leaf 9
Spacing section 53 connect, described flat segments 51 and the arc extinguishing grid pieces of arc-chutes 6 be arranged in parallel, and base 1 is provided with installation run-on tab 5
V-type fix rib, described V-type striking section 52 is fixed rib with V-type and is correspondingly arranged and clamping, and run-on tab 5 passes through spacing section
53 are connected with bimetal leaf 9, are fixed in V-type on corresponding spacing section 53 side of rib and are provided with support protrusion 54, described branch
Support projection 54 contacts connection with the side wall of V-type striking section 52 makes the flexible support of run-on tab 5, so that it is guaranteed that bimetal leaf 9 exists
Original position can be accurately returned to after overload bending.
Miniature circuit breaker of the present utility model drives lever motion when being threaded off by handle breaking-closing operating or operating mechanism,
By lever be in different positions so that the instruction boss on lever showed by the indication window on lid shell it is different
Color, user by indication window can in real time, get information about the break-make shape of circuit breaker internal corresponding to different colours
State, ensures that the safety of the person and circuit, it is to avoid only breaker on off operating mode is judged by the position of handle not
Certainty.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model embodiment breaker；
Fig. 2 is the structural representation of lid shell of the present utility model；
Fig. 3 is the structural representation of lever of the present utility model；
Fig. 4 is the structural representation at another visual angle of lever of the present utility model.
Embodiment
Embodiment of the present utility model is provided below in conjunction with accompanying drawing 1 to 4, small-sized open circuit of the present utility model is further illustrated
Implement body embodiment.Miniature circuit breaker of the present utility model is not limited to the following description.
As illustrated in fig. 1 and 2, the miniature circuit breaker in the utility model includes the housing that base 1 is constituted with lid shell 2, in shell
Operating mechanism 8 and handle 7 are provided with vivo, and described operating mechanism 8 includes lever 81, lock 82, contact and supports the 83, and of connecting rod 84
Tripping 85, described handle 7, lever 81 and contact supports that 83 are articulated on base 1 respectively, and described lever 81 passes through the excess of stroke
Torsion spring supports that 83 are connected with contact, and described excess of stroke torsion spring can provide elastic contact force for the closure of breaker, described
Lock 82 and tripping 85 are articulated on lever 81 and form releasably engageable mechanical locking structure, and described tripping 85 is led to handle 7
Cross connecting rod 84 to be hinged, and be additionally provided with the instruction boss 811 being fixedly connected with lever 81, described lid shell 2 and set on lever 81
Have with indicating the indication window 21 that is correspondingly arranged of boss 811, make circuit-breaker switching on-off or breaker because of overload when driving handle 7 and
Short circuit makes lock 82 and tripping 85 lock or unlock when threading off, and described instruction boss 811 is shown respectively by indication window 21
Go out different colors.The utility model drives lever 81 to move when being threaded off by the breaking-closing operating of handle 7 or operating mechanism 8, leads to
Cross lever 81 and be in different positions, so that the instruction boss 811 on lever 81 is presented by the indication window 21 on lid shell 2
Go out different colors, user by indication window 21 can in real time, get information about in breaker corresponding to different colours
The on off operating mode in portion, ensures that the safety of the person and circuit, it is to avoid only judge that breaker leads to by the position of handle 7
The uncertainty of disconnected state.
As shown in figure 3, the end of described instruction boss 811 is provided with state instruction face 812, the state instruction face 812
End face be provided with the first index plane 813 and the second index plane 814, described the first index plane 813 and the second index plane 814
The state that different colors are used to represent breaker is set up in parallel and presents, when breaker carries out the switching of switch closing and switch opening state,
Lever 81, which drives, indicates that boss 811 is moved, and the first index plane 813 and the second index plane 814 on state instruction face 812 are with thick stick
The movement of bar 81 is appeared alternatively in before indication window 21.Specifically, when the handle 7 of breaker is in the close position, using electric line
Connect, lever 81, which is subjected to displacement, makes the second index plane 814 be correspondingly arranged with indication window 21, indication window 21 is presented second and indicated
The color in face 814；When the handle 7 of breaker is in open position or circuit breaker tripping, electric line disjunction, lever 81 are used
Being subjected to displacement makes the first index plane 813 be correspondingly arranged with indication window 21, and the face of the first index plane 813 is presented in indication window 21
Color.It is preferred that, lever 81 and indicate that boss 811 is formed in one the red lever of structure, and move up in the first index plane 813
Print and retain red on the ink layer of green, the second index plane 814.The utility model use with traffic lights " red light stops, green light
The red and green index plane that indicating effect OK " plays the same tune on different musical instruments are used for the break-make that circuit breaker internal circuit is presented, and not only differentiate
Effect is obvious, and easy-to-understand.It is additionally provided with the side wall for indicating the lever 81 below boss 811 for installation operation mechanism
The spring card slot (not shown) of 8 stage clip (not shown), one end of the stage clip is connected with spring card slot, separately
One end is connected for providing resilient urging force for the disjunction of breaker with the side wall of base 1.
The end of the side of lever 81 is provided with mounting hole 817, and described mounting hole 817 is supported on 83 with being arranged on contact
Pivot hole (not shown) common rotation be arranged on base 1 mechanism rotating shaft on (not shown) cause lever 81 and contact
Support that 83 are coaxially articulated in mechanism rotating shaft, the opposite side of lever 81 is also arranged at intervals with the first protruding shaft 815 and the second protruding shaft
816, the first described protruding shaft 815 and the second protruding shaft 816 are pivotally connected with tripping 85 and lock 82 cause tripping 85 and lock 82 respectively
It is correspondingly arranged and interlocking can be formed, the core of lever 81 is provided with multiple convex with instruction boss 811, mounting hole 817, first
The dead slot 818 that the protruding shaft 816 of axle 815 and second is disposed adjacent is to make full use of raw material.
As shown in figure 1, a specific embodiment of the present utility model is that moving contact 3, stationary contact are also equipped with base 1
First 4, run-on tab 5, arc-chutes 6, bimetal leaf 9 and electromagnetic tripping apparatus 10, described moving contact 3 are arranged on contact and support 83
On, described handle 7 drives moving contact 3 to swing by operating mechanism 8 makes the contact end of moving contact 3 contact and divide with static contact 4
From the break-make for realizing circuit, described bimetal leaf 9 is correspondingly arranged at the contact end of moving contact 3 and the biography extended on lock 82
It is used for delayed releasing between lever 821, described electromagnetic tripping apparatus 10 is correspondingly arranged for instantaneous trip with lock 82.Work as line
When there is short trouble in road, the lock 82 of the striker ejection shock operating mechanism 8 of electromagnetic tripping apparatus 10 unlocks breaker
Thread off；When circuit overloads, the heating of bimetal leaf 9 curves through drive link 821 and pulls lock 82 to make breaker unblock dropout.
83 interior and moving contact 3 contact ends are supported to protrude operating mechanism specifically, described moving contact 3 is arranged on contact
8 are correspondingly arranged with static contact 4, and electromagnetic tripping apparatus 10 is arranged on the top of arc-chutes 6 and corresponding with the lock 82 of operating mechanism 8
Set, static contact 4 is arranged between electromagnetic tripping apparatus 10 and arc-chutes 6 and is connected with the coil of electromagnetic tripping apparatus 10, quiet
The horizontal extension 41 of contact 4 is parallel with the arc extinguishing grid pieces in the axial direction and arc-chutes 6 of electromagnetic tripping apparatus 10, bimetal leaf 9
The side of arc-chutes 6 is arranged on, described run-on tab 5 is arranged between arc-chutes 6 and bimetal leaf 9, run-on tab 5 includes connecting successively
The flat segments 51 that connect, V-type striking section 52 and spacing section 53 be connected with bimetal leaf 9, described flat segments 51 and arc-chutes 6
Arc extinguishing grid pieces be arranged in parallel, base 1 fixes rib, described V-type striking section 52 and V-type provided with the V-type for installing run-on tab 5
Fixed rib is correspondingly arranged and clamping, and run-on tab 5 is connected by spacing section 53 with bimetal leaf 9, and rib pair is fixed in V-type
The side answered spacing section 53 is provided with support protrusion 54, and described support protrusion 54 contacts connection with the side wall of V-type striking section 52
Make the flexible support of run-on tab 5, so that it is guaranteed that bimetal leaf 9 can accurately return to original position after overload bending.
As shown in Fig. 2 the side wall of the end of lid shell 2 is provided with the opening 22 being engaged with handle 7, the handle 7
End through opening 22 be provided for operation and can in opening 22 rotation-limited, described indication window 21 and the phase of opening 22
Neighbour is set and with indicating that the state instruction face 812 on boss 811 is oppositely arranged.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to protection domain of the present utility model.
Claims (10)
1. a kind of miniature circuit breaker, including the housing that base (1) is constituted with lid shell (2), in housing provided with operating mechanism (8) and
Handle (7), described operating mechanism (8) includes lever (81), lock (82), contact and supports (83), connecting rod (84) and tripping
(85), described handle (7), lever (81) and contact support (83) to be articulated in respectively on base (1), and described lever (81) leads to
Cross excess of stroke torsion spring supports (83) to be connected with contact, and described lock (82) and tripping (85) is articulated on lever (81) and formed
Releasably engageable mechanical locking structure, described tripping (85) is hinged with handle (7) by connecting rod (84), it is characterised in that：Lever
(81) provided with the instruction boss (811) being fixedly connected with lever (81), described lid shell (2) is provided with indicating boss
(811) indication window (21) being correspondingly arranged, when driving handle (7) makes circuit-breaker switching on-off or breaker make because of overload and short circuit
When latching (82) with tripping (85) locking or unblock dropout, described instruction boss (811) is shown respectively by indication window (21)
Different colors are shown.
2. miniature circuit breaker according to claim 1, it is characterised in that：The end of described instruction boss (811) is provided with
State instruction face (812), the end face of the state instruction face (812) is provided with the first index plane (813) and the second index plane
(814), described the first index plane (813) and the second index plane (814) are set up in parallel and different colors are presented and be used to represent
The state of breaker, lever (81) can drive instruction boss (811) motion to make the first index plane (813) and the second index plane
(814) appeared alternatively in lever (81) movement before indication window (21).
3. miniature circuit breaker according to claim 2, it is characterised in that：The lever (81) and instruction boss (811) are
The red lever of integrated formed structure, and the green ink of bat printing, the second index plane (814) on the first index plane (813)
It is upper to retain red.
4. miniature circuit breaker according to claim 1, it is characterised in that：The lever indicated below boss (811)
(81) side wall is provided with the spring card slot for being used for installing stage clip, and one end of the stage clip is connected with spring card slot, the other end
It is connected with the side wall of base (1).
5. miniature circuit breaker according to claim 1, it is characterised in that：The end of lever (81) side is provided with installation
Hole (817), described mounting hole (817) and the pivot hole common rotation being arranged in contact support (83) are arranged on base (1)
In mechanism rotating shaft, the opposite side of lever (81) is also arranged at intervals with the first protruding shaft (815) and the second protruding shaft (816), described
One protruding shaft (815) and the second protruding shaft (816) are pivotally connected with tripping (85) and lock (82) respectively causes tripping (85) and lock (82)
It is correspondingly arranged and interlocking can be formed.
6. miniature circuit breaker according to claim 1, it is characterised in that：The side wall of lid shell (2) end be provided with
The opening (22) that handle (7) is engaged, the end of the handle (7) sets through opening (22) and can limited in opening (22)
Position is rotated, and described indication window (21) is disposed adjacent with opening (22) and with indicating the state instruction face on boss (811)
(812) it is oppositely arranged.
7. miniature circuit breaker according to claim 1, it is characterised in that：Be provided with the base (1) moving contact (3) and
Static contact (4), described handle (7) by operating mechanism (8) drive moving contact (3) swing make the contact end of moving contact (3) with
Static contact (4), which is contacting and separating, realizes the break-make of circuit.
8. miniature circuit breaker according to claim 1, it is characterised in that：Bimetal leaf (9) is installed on the base (1)
With electromagnetic tripping apparatus (10), described bimetal leaf (9) is correspondingly arranged at the contact end of moving contact (3) with prolonging on lock (82)
Between the drive link (821) of stretching, described electromagnetic tripping apparatus (10) is correspondingly arranged with lock (82).
9. miniature circuit breaker according to claim 1, it is characterised in that：Be provided with the base (1) moving contact (3),
Static contact (4), run-on tab (5), arc-chutes (6), bimetal leaf (9) and electromagnetic tripping apparatus (10), described moving contact (3) peace
Supported mounted in contact on (83) and the contact end of moving contact (3) protrudes operating mechanism (8) and is correspondingly arranged with static contact (4), it is electric
Magnetic trip gear (10) is arranged on the top of arc-chutes (6) and is correspondingly arranged with the lock (82) of operating mechanism (8), static contact
(4) it is arranged between electromagnetic tripping apparatus (10) and arc-chutes (6) and is connected with the coil of electromagnetic tripping apparatus (10), static contact
(4) horizontal extension (41) is parallel with the arc extinguishing grid pieces in the axial direction and arc-chutes (6) of electromagnetic tripping apparatus (10), bimetallic
Piece (9) is arranged on arc-chutes (6) side, and described run-on tab (5) is arranged between arc-chutes (6) and bimetal leaf (9).
10. miniature circuit breaker according to claim 9, it is characterised in that：Described run-on tab (5) includes what is be sequentially connected
Flat segments (51), V-type striking section (52) and spacing section (53) being connected with bimetal leaf (9), described flat segments (51) are with going out
The arc extinguishing grid pieces of arc chamber (6) be arranged in parallel, and base (1) fixes rib provided with the V-type for installing run-on tab (5), and described V-type is drawn
Segmental arc (52) is fixed rib with V-type and is correspondingly arranged and clamping, and run-on tab (5) is connected by spacing section (53) with bimetal leaf (9)
Connect, fixed in V-type and support protrusion (54), described support protrusion (54) and V are provided with the side of rib correspondence spacing section (53)
The side wall contact connection of type striking section (52) makes the flexible support of run-on tab (5), so that it is guaranteed that bimetal leaf (9) is curved in overload
Original position can be accurately returned to after song.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720003610.6U CN206441682U (en) | 2017-01-03 | 2017-01-03 | Miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720003610.6U CN206441682U (en) | 2017-01-03 | 2017-01-03 | Miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206441682U true CN206441682U (en) | 2017-08-25 |
Family
ID=59643489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720003610.6U Active CN206441682U (en) | 2017-01-03 | 2017-01-03 | Miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206441682U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777245A (en) * | 2018-07-05 | 2018-11-09 | 杭州本松新材料技术股份有限公司 | Lever part, bottom cover, transmission mechanism and the breaker of low-pressure type breaker |
| CN114551174A (en) * | 2022-03-25 | 2022-05-27 | 乐星电气(无锡)有限公司 | Circuit breaker with interlocking protection mechanism |
-
2017
- 2017-01-03 CN CN201720003610.6U patent/CN206441682U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777245A (en) * | 2018-07-05 | 2018-11-09 | 杭州本松新材料技术股份有限公司 | Lever part, bottom cover, transmission mechanism and the breaker of low-pressure type breaker |
| CN114551174A (en) * | 2022-03-25 | 2022-05-27 | 乐星电气(无锡)有限公司 | Circuit breaker with interlocking protection mechanism |
| CN114551174B (en) * | 2022-03-25 | 2023-08-18 | 乐星电气(无锡)有限公司 | Circuit breaker with interlocking protection mechanism |
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