CN201307566Y - Small-sized low-voltage circuit breaker - Google Patents
Small-sized low-voltage circuit breaker Download PDFInfo
- Publication number
- CN201307566Y CN201307566Y CNU2008202028957U CN200820202895U CN201307566Y CN 201307566 Y CN201307566 Y CN 201307566Y CN U2008202028957 U CNU2008202028957 U CN U2008202028957U CN 200820202895 U CN200820202895 U CN 200820202895U CN 201307566 Y CN201307566 Y CN 201307566Y
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- China
- Prior art keywords
- circuit breaker
- housing
- voltage circuit
- standard bus
- bar
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- Expired - Lifetime
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Abstract
The utility model relates to the technical field of a circuit breaker, in particular to a small-sized low-voltage circuit breaker. The small-sized low-voltage circuit breaker comprises a shell body. Internal elements and components are arranged in the shell body, a lead wire switch-in end and a standard bus bar connection-inserting groove are arranged at the end face of the shell body, a wire connection board is arranged in the shell body corresponding to the positions of the lead wire switch-in end and the standard bus bar connection-inserting groove, a wire connection clamp is sleeved on a lower hook plate of the wire connection board, a guide hole is arranged at a top board at the upper end of the wire connection board, a threaded hole is arranged at the upper end of the wire connection clamp corresponding to the guide hole, a wire connection screw is connected with the wire connection clamp in a threaded manner after penetrating through the guide hole and the threaded hole, and the groove walls at the two sides of the standard bus bar connection-inserting groove are fixed on the shell body in a separated manner. When in use, both a lead wire and a bus bar can be connected, and the convenient wire connection method is provided.
Description
Technical field:
The utility model relates to breaker technical field, particularly a kind of small low-voltage circuit breaker.
Background technology:
The small low-voltage circuit breaker claims automatic switch again, and it is a kind of existing hand switch effect, can carry out decompression, under-voltage, overload and the electrical equipment of short-circuit protection again automatically.Circuit breaker can automatic shutdown circuit when serious overload or short circuit and fault such as under-voltage take place in the circuit, and its function is equivalent to Fuse switch and the combination of crossing underheat relay etc.And behind the disjunction fault current, generally do not need to change parts, thereby obtained using widely.
Small low-voltage circuit breaker inside generally is made up of operating mechanism, contact, protective device (various release), arc quenching system etc.Its main contacts is moving operation of armrest or electric switch-on.After the main contacts closure, free tripping mechanism is locked in main contacts on the closing position.The coil of overcurrent trip and the thermal element of thermal overload release are connected with main circuit, the coil of under-voltage release and power supply parallel connection.When circuit was short-circuited or seriously transship, the armature adhesive of overcurrent trip made the free tripping mechanism action, and main contacts disconnects main circuit.When circuit overloads, the heating of the thermal element of thermal overload release makes on the bimetal leaf crooked, promotes the free tripping mechanism action.When the circuit under voltage, the armature of under-voltage release discharges.Also make the free tripping mechanism action.
Above-mentioned parts all are arranged in the housing of circuit breaker, the side of housing is provided with the lead incoming end or the standard bus-bar patches groove, corresponding lead incoming end or standard bus-bar patch the groove position and are provided with terminal block in the housing, terminal block is used to connect electric wire or standard bus-bar, makes in the circuit breaker place in circuit.Yet existing small low-voltage circuit breaker is provided with the lead incoming end separately mostly or the standard bus-bar patches groove, makes troubles for the user when selecting the different modes of connection.
The utility model content:
The purpose of this utility model is to provide a kind of small low-voltage circuit breaker at the deficiencies in the prior art, and this circuit breaker can connect lead, can connect bus-bar again, has the mode of connection easily.
For achieving the above object, the utility model adopts following technical scheme:
A kind of small low-voltage circuit breaker, comprise housing, be provided with operating mechanism in the housing, the contact, tripping mechanism and arc quenching system, described operating mechanism comprises handle, the end face of housing is provided with the lead incoming end and the standard bus-bar patches groove, corresponding lead incoming end and standard bus-bar patch the groove position and are provided with termination in the housing, described termination comprises terminal block, binding clip and terminal screw, binding clip is socketed on the lower lying plate of terminal block, terminal block upper end top board offers pilot hole, the corresponding pilot hole in binding clip upper end offers screwed hole, terminal screw passes pilot hole and screwed hole is threaded with binding clip, and the both sides cell wall that described standard bus-bar patches groove is fixed on the housing separably.
Wherein, described housing patches at lead incoming end and standard bus-bar and offers thermovent between the groove.
Wherein, described handle top offers connecting hole.
Wherein, described housing end face is an arcwall face.
The utility model beneficial effect is: from such scheme as can be seen, when needing to insert lead, lead is stretched into the lead incoming end, turn terminal screw, upwards promote clamping wire thereby drive binding clip, make lead be close to lower lying plate; When the multipole assembly unit of circuit breaker, when need inserting bus-bar, the both sides cell wall that the standard bus-bar of each circuit breaker is patched groove is peeled off from housing, the standard bus-bar is inserted patch groove again, tightens terminal screw, makes bus-bar be close to described top board; Realized in same circuit breaker, can connecing lead, can connect the purpose of bus-bar again, the mode of connection easily is provided.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is structural representations of the utility model termination;
Accompanying drawing 3 is structural representations of the utility model terminal block;
Accompanying drawing 4 is the utility model binding clip structural representations;
Accompanying drawing 5 is that the A-A of accompanying drawing 1 is to cutaway view;
Accompanying drawing 6 is left views of accompanying drawing 1;
Structural representation when accompanying drawing 7 is the multipole assembly unit of the utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described, see shown in the accompanying drawing 1～4, a kind of small low-voltage circuit breaker, comprise housing 1, be provided with operating mechanism in the housing 1, the contact, tripping mechanism and arc quenching system, the end face of housing 1 is provided with lead incoming end 2 and the standard bus-bar patches groove 3, corresponding lead incoming end 2 and standard bus-bar patch groove 3 positions and are provided with termination in the housing 1, described termination comprises terminal block 4, binding clip 5 and terminal screw 10, binding clip 5 is socketed on the lower lying plate 41 of terminal block 4, terminal block 4 upper end top boards 42 offer pilot hole 43, the corresponding pilot hole 43 in binding clip 5 upper ends offers screwed hole 51, terminal screw 10 passes pilot hole 43 and screwed hole 51 is threaded with binding clip 5, and the both sides cell wall 11 that described standard bus-bar patches groove 3 is fixed on the housing 1 separably.
As shown in Figure 5, during use,, then lead is stretched into lead incoming end 2, turn terminal screw 10, upwards promote clamping wire, make lead be close to lower lying plate 41 and promptly finish wiring thereby drive binding clip 5 if need to insert lead; When the multipole assembly unit of circuit breaker, when need inserting bus-bar, the both sides cell wall 11 that the standard bus-bar of each circuit breaker is patched groove 3 is peeled off from housing 1, the standard bus-bar is inserted patch groove 3 again, tighten terminal screw 10, make bus-bar be close to described top board 42 and promptly finish wiring.
The described housing 1 of present embodiment patches at lead incoming end 2 and standard bus-bar and offers thermovent 12 between the groove 3; Behind the circuit breaker place in circuit, terminal block 4 places are because of the existence of contact resistance, when continuous firing, can produce temperature rise, too high as temperature rise, then both influenced useful life of circuit breaker, circuit breaker is frequently tripped, make troubles to the user, so offer thermovent 12 in the present embodiment, be convenient in air, conduct rapidly because of the heat that contact resistance produces, reduce the temperature rise of terminals.
See shown in the accompanying drawing 5～7 that the described handle of present embodiment top offers connecting hole 13, described connecting hole 13 uses when multipole assembly unit.During the multipole assembly unit of existing circuit breaker, its connected mode is use plastic jacket mostly, and the connecting axle connection.The utility model is owing to be provided with connecting hole 13, and is during multipole assembly unit that a plurality of circuit breakers are arranged side by side, inserts with connecting axle 15 in the corresponding connecting hole 13 of two adjacent circuit breaker handles 16 and can finish assembly unit, and need not use traditional assembly unit annex, brings convenience to use.
See accompanying drawing 5 and accompanying drawing 6, the end face 14 of the described housing 1 of present embodiment is an arcwall face, and this arcwall face is corresponding with the handle rotary motion trace of operating mechanism, makes the people can not bump to housing 1 like this when drawing handle, compare with traditional facing directly, the design of this arcwall face has more hommization.
The above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (4)
1, a kind of small low-voltage circuit breaker, comprise housing (1), housing is provided with operating mechanism in (1), the contact, tripping mechanism and arc quenching system, described operating mechanism comprises handle (16), it is characterized in that: the end face of housing (1) is provided with lead incoming end (2) and the standard bus-bar patches groove (3), interior corresponding lead incoming end of housing (1) (2) and standard bus-bar patch groove (3) position and are provided with terminal block (4), binding clip (5) is socketed on the lower lying plate (6) of terminal block (4), terminal block (4) upper end top board (7) offers pilot hole (8), binding clip (5) the corresponding pilot hole in upper end (8) offers screwed hole (9), terminal screw (10) passes pilot hole (8) and screwed hole (9) and is threaded with binding clip (5), and the both sides cell wall (11) that described standard bus-bar patches groove (3) is fixed on the housing (1) separably.
2, a kind of small low-voltage circuit breaker according to claim 1 is characterized in that: described housing (1) patches at lead incoming end (2) and standard bus-bar and offers thermovent (12) between the groove (3).
3, a kind of small low-voltage circuit breaker according to claim 1 and 2 is characterized in that: described handle (16) top offers connecting hole (13).
4, a kind of small low-voltage circuit breaker according to claim 1 is characterized in that: described housing (1) end face is an arcwall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202028957U CN201307566Y (en) | 2008-11-04 | 2008-11-04 | Small-sized low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202028957U CN201307566Y (en) | 2008-11-04 | 2008-11-04 | Small-sized low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307566Y true CN201307566Y (en) | 2009-09-09 |
Family
ID=41100033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202028957U Expired - Lifetime CN201307566Y (en) | 2008-11-04 | 2008-11-04 | Small-sized low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307566Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976642A (en) * | 2010-11-24 | 2011-02-16 | 戴英夫 | Earth leakage circuit breaker with extended line |
| CN103325586A (en) * | 2013-07-01 | 2013-09-25 | 华为技术有限公司 | Circuit breaker assembly and single P circuit breaker |
| WO2013185421A1 (en) * | 2012-06-15 | 2013-12-19 | 浙江鼎威科技有限公司 | Dual-mechanism 1p+n earth leakage circuit breaker |
| CN104409288A (en) * | 2014-11-12 | 2015-03-11 | 成都峰达科技有限公司 | Circuit breaker convenient to assemble |
-
2008
- 2008-11-04 CN CNU2008202028957U patent/CN201307566Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976642A (en) * | 2010-11-24 | 2011-02-16 | 戴英夫 | Earth leakage circuit breaker with extended line |
| CN101976642B (en) * | 2010-11-24 | 2013-05-08 | 戴英夫 | Earth leakage circuit breaker with extended line |
| WO2013185421A1 (en) * | 2012-06-15 | 2013-12-19 | 浙江鼎威科技有限公司 | Dual-mechanism 1p+n earth leakage circuit breaker |
| CN103325586A (en) * | 2013-07-01 | 2013-09-25 | 华为技术有限公司 | Circuit breaker assembly and single P circuit breaker |
| CN103325586B (en) * | 2013-07-01 | 2016-08-10 | 华为技术有限公司 | A kind of breaker assembly and single P chopper |
| CN104409288A (en) * | 2014-11-12 | 2015-03-11 | 成都峰达科技有限公司 | Circuit breaker convenient to assemble |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |