CN103854931A - Arc extinguishing device and circuit breaker with same adopted - Google Patents
Arc extinguishing device and circuit breaker with same adopted Download PDFInfo
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- CN103854931A CN103854931A CN201210517529.1A CN201210517529A CN103854931A CN 103854931 A CN103854931 A CN 103854931A CN 201210517529 A CN201210517529 A CN 201210517529A CN 103854931 A CN103854931 A CN 103854931A
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- block piece
- arc
- control device
- housing
- depressed part
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Abstract
The invention discloses an arc extinguishing device. The arc extinguishing device comprises a shell with an arc extinguishing chamber and a contact arm. An opening is formed in the shell. The opening is formed in the first side of the shell and communicated with the arc extinguishing chamber of the shell. The contact arm stretches into the arc extinguishing chamber of the shell through the opening. Two connecting pieces are further formed on the shell. The two connecting pieces are arranged on the first side of the shell and located on the two sides of the opening. The arc extinguishing device further comprises a first shielding piece and a second shielding piece. The first shielding piece and the second shielding piece are installed on the shell in a rotatable mode through the two connecting pieces. The invention further discloses a circuit breaker with the arc extinguishing device adopted. The first shielding piece and the second shielding piece are installed on the shell in the rotatable mode, movement of the contact arm can drive the first shielding piece and the second shielding piece to rotate so as to block the opening, and therefore the air blowing effect in the shell can be enhanced.
Description
Technical field
The present invention relates to Low Voltage Electrical Apparatus, particularly a kind of arc-control device and adopt the circuit breaker of this arc-control device.
Background technology
Circuit breaker is the appliance switch of automatic operation, avoids the damage causing due to overload short circuit for the protection of circuit.Circuit breaker or arc-control device wherein generally include a pair of contact and multiple arc quenching plate.When contact closure, allow electric current to flow through, contact stops electric current to flow through while disconnection.In the time that short circuit occurs, that the interruption of short circuit current causes fixing and movably the electromagnetism between contact repel, cause contact separately, and between contact, form electric arc; The electric arc forming can be eliminated by arc quenching plate.Wherein, in the time that contact disconnects, gas exhausted material can produce gas and form certain air-blowing; In the process of the gas outlet motion of arc-control device, electric arc is blowed to the grid sheet in arc-control device at gas.But, because arc-control device is provided with the opening that enters arc-control device motion for contact, therefore, in the process of arc-control device gas blast arc-quenching, part gas will be towards this harness motion, cause the decline of blast pressure in whole arc-control device, weakened air-blowing effect, be unfavorable for improving the arc extinction performance of circuit breaker.
Summary of the invention
Technical problem to be solved by this invention is, a kind of arc-control device that strengthens blast pressure is provided.The present invention is also intended to provide a kind of circuit breaker of this arc-control device of application.
The present invention is achieved in that provides a kind of arc-control device, comprises housing and a contact arm with arc control device; On described housing, be formed with an opening; Described opening is arranged in the first side of described housing and communicates with the described arc control device of described housing; Described contact arm extend in the described arc control device of described housing through described opening; On described housing, be also formed with two connectors; Described two connectors are arranged in described first side of described housing and are positioned at the both sides of described opening; Described arc-control device also comprises first block piece and second block piece; Described the first block piece and described the second block piece are arranged on described housing rotationally by described two connectors.
Further, described contact arm can be at the first flat in-plane moving in described opening, and drive described the first block piece take the described connector of correspondence as rotating shaft in the second plane along counterclockwise rotating with opening described in shutoff with respect to described housing, and promote described the second block piece and rotate with opening described in shutoff with respect to described housing along clockwise direction in described the second plane take the described connector of correspondence as rotating shaft.
Further, described the first plane is perpendicular to described the second plane.
Further, described the second plane parallel is in the surface of described first side of described housing.
Further, described two connectors are axle or the bulge-structure being arranged on described housing.
Further, described the first block piece and described the second block piece comprise a body, first depressed part and second depressed part separately; Described body is provided with connecting hole; Described connecting hole connects rotationally with corresponding described connector; Described the first depressed part and described the second depressed part are arranged on respectively the two ends of described body; In the time of non-arc extinguishing state, described first depressed part of described the first block piece and described first depressed part of described the second block piece are overlapping; Described second depressed part of described the first block piece and described second depressed part of described the second block piece are overlapping.
Further, described contact arm is between described first depressed part of described the first block piece and described second depressed part of described the first block piece.
Further, described the first block piece and described the second block piece comprise multiple inclined-planes and multiple summit separately; Described multiple inclined-planes on described the first block piece and described multiple summit form the wavy structure towards described contact arm; Described multiple inclined-planes on described the second block piece and described multiple summit form the wavy structure towards described contact arm.
Further, described the second depressed part is L-shaped.
Further, described the first block piece and described the second block piece adopt the material of the generation gas that is heated to make.
Further, on described housing, be also formed with a gas outlet; Described gas outlet is arranged in the second side of described housing and communicates with the described arc control device of described housing; The contrary both sides that described first side of described housing and described the second side are described housing.
A kind of circuit breaker providing according to another embodiment of the present invention, described circuit breaker comprises above-mentioned arc-control device.
According in the circuit breaker of the arc-control device of the embodiment of the present invention and this arc-control device of employing, the first block piece and the second block piece being arranged on housing rotationally, the motion of contact arm can promote the first block piece and thereby the second block piece rotates opening shutoff, can strengthen the air-blowing effect in housing, therefore, the arc quenching effect of arc-control device can be strengthened, and the interrupting performance of the circuit breaker that uses this arc-control device can be strengthened.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, and for above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of arc-control device in the time of non-arc extinguishing state in one embodiment of the invention.
Fig. 2 is the enlarged diagram of Fig. 1 middle shell.
Fig. 3 is the enlarged diagram of the first block piece in Fig. 1.
Fig. 4 is the schematic diagram of another angle of the first block piece in Fig. 3.
Fig. 5 is the schematic diagram of arc-control device in the time of arc extinguishing state in Fig. 1.
Wherein, Reference numeral comprises:
100 arc-control device 110 housing 112 openings
113 gas outlet 115 connector 120 contact arms
130 first block piece 131,141 body 1312,1412 connecting holes
1341 first paragraph 1342 second segment 133,143 first depressed parts
134,144 second 136,146 summits, depressed part 135,145 inclined-planes
140 second block pieces
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Figure 1 shows that arc-control device 100 in one embodiment of the invention.As shown in fig. 1, arc-control device 100 comprises a housing 110, swingable contact arm 120, the first block piece 130 and second block piece 140.Wherein, the first block piece 130 and the second block piece 140 are arranged on housing 110 rotationally; Thereby contact arm 120 can move and drive the first block piece 130 and the second block piece 140 to move with respect to housing 110 with respect to housing 110.
Wherein, as shown in Figure 2, housing 110 is roughly case shape, its inner arc control device that form.On housing 110, be formed with an opening 112, gas outlet 113 and two connectors 115.Opening 112 is arranged in the first side of housing 110 and communicates with the arc control device of housing 110 inside, and can be used for installing contact arm 120 and contact arm 120 can move in opening 112.Gas outlet 113 is arranged in the second side of housing 110 and communicates with the arc control device of housing 110 inside, in order to inner housing 110 gas producing is discharged to the outside of housing 110.In one embodiment, the first side of housing 110 and the second side are the contrary both sides of housing 110.
Two connectors 115 are arranged in the first side of housing 110, can be respectively used to installation the first block piece 130 and the second block piece 140 that rotate.In one embodiment, two connectors 115 can be arranged on symmetrically in the first side of housing 110 and be positioned at the both sides of opening 112.Two connectors 115 can be for being arranged on axle or the bulge-structure on housing 110.
The opening 112 of the first end of contact arm 120 from housing 110 extend in the arc control device of housing 110 inside; The second end of contact arm 120 is positioned at the outside of housing 110.In the process of arc-control device 100 combined floodgates and barrier gate, contact arm 120 can move and then drive the first block piece 130 and the second block piece 140 to rotate with respect to housing 110 in opening 112.
The first block piece 130 can adopt the material of the generation gas that is heated to make.Fig. 3 is the enlarged diagram of the first block piece 130 in Fig. 1.Fig. 4 is the schematic diagram of another angle of the first block piece 140 in Fig. 3.As shown in Figure 3 and Figure 4, the first block piece 130 comprises a body 131 and is separately positioned on first depressed part 133 at body two ends, second depressed part 134.
It is tabular that body 131 is roughly, and which is provided with connecting hole 1312.Connecting hole 1312 can be connected rotationally with the connector 115 on housing 110, thereby the first block piece 130 is rotatably installed in the first side of housing 110, makes the first block piece 130 can be take connector 115 as rotating shaft with respect to housing 110 reciprocating motions.In one embodiment, the first block piece 130 can with the surperficial almost parallel of the first side of body 131.The first depressed part 133 on body 131 and the second depressed part 134 can coordinate (hereinafter will be described further) with the second block piece 140 respectively.In one embodiment, the second depressed part 134 is roughly L-shaped, can be divided into first paragraph 1341 and second segment 1342.Second segment 1342 is generally perpendicularly arranged on the end of first paragraph 1341.In addition,, in the side acting at body 131 and contact arm 120, on body 131, be formed with multiple inclined-planes 135 and multiple summit 136.Multiple inclined-planes 135 and multiple summit 136 can form wavy structure.
The first depressed part 133 is formed on the top of body 131, thereby the integral thickness of the first block piece 130 is started from the top of body 131 to the first depressed part 133 attenuation, makes to form ledge structure between body 131 and the first depressed part 133.The second depressed part 134 is formed on the bottom of body 131, similarly, thereby the integral thickness of the first block piece 130 is started again to the second depressed part 134 attenuation from the bottom of body 131, makes to form ledge structure between body 131 and the second depressed part 134.
The second block piece 140 also can adopt the material of the generation gas that is heated to make.In one embodiment, the structure of the second block piece 140 is identical with the structure of the first block piece 130, for example, the second block piece 140 also comprises a body with connecting hole 1,412 141 and is separately positioned on first depressed part 143 and second depressed part 144 at body 141 two ends, and comprises that multiple inclined-planes 145 and multiple summit 146(are as shown in Figure 5) etc. structure.Difference between the second block piece 140 and the first block piece 130 is that both installation sites on housing 100 are different: when arc-control device 100 is during in position shown in Fig. 1 and Fig. 5, the first block piece 130 is positioned at the left side of contact arm 120 and the second block piece 140 is positioned at the right side of contact arm 120, and the inclined-plane 145 of the inclined-plane 135 of the first block piece 130, summit 136 and the second block piece 140, summit 146 are oppositely arranged and all towards contact arm 120.
Above-mentioned is the concrete structure of arc-control device 100 in one embodiment of the invention, its course of work of brief description.
Figure 1 shows that the schematic diagram of arc-control device 100 in the time of non-arc extinguishing state.Now, the first depressed part 133 of the first block piece 130 and the first depressed part 143 of the second block piece 140 are partly or entirely overlapping, can prevent from interfering between the first block piece 130 and the top of the second block piece 140; And, can utilize the first depressed part 133 of the first block piece 130 and/or other regions in opening 112, to be positioned at regional occlusion or the shutoff of contact arm 112 tops.Meanwhile, the second depressed part 134 of the first block piece 130 and the second depressed part 144 of the second block piece 140 partly overlap, and can prevent from interfering between the first block piece 130 and the bottom of the second block piece 140; And, can utilize the second segment (not marking in figure) of the second segment 1342 of the second depressed part 134 of the first block piece 130 and the second depressed part of the bottom of the second block piece 140 in opening 112, to be positioned at regional occlusion or the shutoff of contact arm 112 belows.Like this, at arc-control device 100 during in non-arc extinguishing state, the first block piece 130 and the second block piece 140 can be by most of regional occlusion or the shutoff of opening 112, and the opening 112 of the pollutant such as dust, particle producing can prevent the interior contact disjunction of housing 110 time from housing 110 discharged and entered and adopt the circuit breaker internal contamination mechanism of this arc-control device 100.
In the time that short circuit occurs, the interruption of short circuit current forms electric arc and causes electromagnetism to repel, and contact arm 120 is moved upward in opening 112 in the first plane.Figure 5 shows that the schematic diagram of arc-control device 100 in the time of arc extinguishing state.Now, the contact arm 112 moving upward contact with the inclined-plane 145 of inclined-plane 135 on the first block piece 130, the second block piece 140 and promote the first block piece 130 take corresponding connector 115 as rotating shaft in the second plane along counterclockwise rotating with respect to housing 110, and promote the second block piece 140 and rotate with respect to housing 110 along clockwise direction in the second plane take corresponding connector 115 as rotating shaft.In one embodiment, the first plane is approximately perpendicular to the second plane.The second plane can be roughly parallel to the surface of housing 110 first sides.In this process, the second depressed part 134 of the first block piece 130 and second depressed part (not marking in figure) of the second block piece 140 move towards opening 112 from contrary direction, thus by opening 112, be positioned at contact arm 120( moved to top) below regional occlusion or shutoff; Like this, can guarantee that the gas of the inner gas exhausted material generation of housing 110 is discharged from gas outlet 113 as far as possible, the air-blowing effect that is conducive to strengthen in housing 110 can comparatively fast be extinguished electric arc, can effectively strengthen the arc quenching effect of arc-control device 100.In addition, due to the first block piece 130 and the material that the second block piece 140 blocks or shutoff opening 112 and can adopting is heated produces gas make, therefore, the first block piece 130 and the second block piece 140 are subject to thermogenetic gas can further strengthen air pressure inner in housing 110, and then strengthen the air-blowing effect in housing 110.In addition, owing to being formed with respectively inclined-plane 135/145 and multiple summit 136/146 on the first block piece 130 and the second block piece 140, can prevent the overexercise of contact arm 120.
Arc-control device 100 in the embodiment of the present invention can be applicable in circuit breaker.In the time that arc-control device 100 is applied in circuit breaker, because opening 112 is by the first block piece 130 and the second block piece 140 shutoff, the metallic that electric arc or electrical arc erosion point produce can not flow out from opening 112, thereby can not pollute the element in the circuit breaker that uses this arc-control device 100.
As mentioned above, in the circuit breaker of the arc-control device 100 in one embodiment of the invention and this arc-control device 100 of employing, the first block piece 130 and the second block piece 140 are arranged on housing 110 rotationally, the motion of contact arm 120 can promote the first block piece 130 and thereby the second block piece 140 rotates opening 112 shutoff, can strengthen the air-blowing effect in housing 110, therefore, the arc quenching effect of arc-control device 100 can be strengthened, and the interrupting performance of the circuit breaker that uses this arc-control device 100 can be strengthened.
In sum, the invention discloses a kind of arc-control device, comprise housing and a contact arm with arc control device; On described housing, be formed with an opening; Described opening is arranged in the first side of described housing and communicates with the described arc control device of described housing; Described contact arm extend in the described arc control device of described housing through described opening; On described housing, be also formed with two connectors; Described two connectors are arranged in described first side of described housing and are positioned at the both sides of described opening; Described arc-control device also comprises first block piece and second block piece; Described the first block piece and described the second block piece are arranged on described housing rotationally by described two connectors.The invention also discloses a kind of circuit breaker that adopts above-mentioned arc-control device.The first block piece and the second block piece are arranged on housing rotationally, thereby the motion of contact arm can promote the first block piece and the second block piece rotates opening shutoff, can strengthen the air-blowing effect in housing.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. an arc-control device (100), comprises housing (110) and a contact arm (120) with arc control device; On described housing (110), be formed with an opening (112); Described opening (112) is arranged in the first side of described housing (110) and communicates with the described arc control device of described housing (110); Described contact arm (120) extend in the described arc control device of described housing (110) through described opening (112); It is characterized in that, on described housing (110), be also formed with two connectors (115); Described two connectors (115) are arranged in described first side of described housing (110) and are positioned at the both sides of described opening (112); Described arc-control device (100) also comprises first block piece (130) and second block piece (140); Described the first block piece (130) and described the second block piece (140) are arranged on described housing (110) rotationally by described two connectors (115).
2. arc-control device according to claim 1 (100), it is characterized in that, described contact arm (120) can be at the first flat in-plane moving in described opening (112), and drive described the first block piece (130) take the described connector (115) of correspondence as rotating shaft in the second plane along counterclockwise rotating with opening described in shutoff (112) with respect to described housing (110), and promote described the second block piece (140) and rotate with opening described in shutoff (112) with respect to described housing (110) along clockwise direction in described the second plane take the described connector (115) of correspondence as rotating shaft.
3. arc-control device according to claim 2 (100), is characterized in that, described the first plane is perpendicular to described the second plane.
4. arc-control device according to claim 3 (100), is characterized in that, described the second plane parallel is in the surface of described first side of described housing (110).
5. arc-control device according to claim 1 (100), is characterized in that, described two connectors (115) are for being arranged on axle or the bulge-structure on described housing (110).
6. arc-control device according to claim 1 (100), it is characterized in that, described the first block piece (130) and described the second block piece (140) comprise a body (131,141), first depressed part (133,143) and second depressed part (134,144) separately; Described body (131,141) is provided with connecting hole (1312,1412); Described connecting hole (1312,1412) connects rotationally with corresponding described connector (115); Described the first depressed part (133,143) and described the second depressed part (134,144) are separately positioned on the two ends of described body (131,141); In the time of non-arc extinguishing state, first depressed part (133) of described the first block piece (130) is overlapping with first depressed part (143) of described the second block piece (140); Second depressed part (144) of described the first block piece (130) is overlapping with second depressed part (144) of described the second block piece (140).
7. arc-control device according to claim 6 (100), is characterized in that, described contact arm (120) is positioned between first depressed part (133) of described the first block piece (130) and second depressed part (144) of described the first block piece (130).
8. arc-control device according to claim 6 (100), is characterized in that, described the first block piece (130) and described the second block piece (140) comprise multiple inclined-planes (135,145) and multiple summit (136,146) separately; Described multiple inclined-planes (135) on described the first block piece (130) and described multiple summit (136) form the wavy structure towards described contact arm (120); Described multiple inclined-planes (145) on described the second block piece (140) and described multiple summit (146) form the wavy structure towards described contact arm (120).
9. arc-control device according to claim 6 (100), is characterized in that, described the second depressed part (134,144) is L-shaped.
10. arc-control device according to claim 1 (100), is characterized in that, described the first block piece (130) and described the second block piece (140) adopt the material of the generation gas that is heated to make.
11. arc-control devices according to claim 1 (100), is characterized in that, are also formed with a gas outlet (113) on described housing (110); Described gas outlet (113) is arranged in the second side of described housing (110) and communicates with the described arc control device of described housing (110); Described first side of described housing (110) and described the second side are the contrary both sides of described housing (110).
12. 1 kinds of circuit breakers, is characterized in that, described circuit breaker comprises as the arc-control device (100) as described in any one in claim 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517529.1A CN103854931B (en) | 2012-12-05 | 2012-12-05 | Arc-control device and use the chopper of this arc-control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517529.1A CN103854931B (en) | 2012-12-05 | 2012-12-05 | Arc-control device and use the chopper of this arc-control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103854931A true CN103854931A (en) | 2014-06-11 |
| CN103854931B CN103854931B (en) | 2016-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210517529.1A Expired - Fee Related CN103854931B (en) | 2012-12-05 | 2012-12-05 | Arc-control device and use the chopper of this arc-control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103854931B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01159926A (en) * | 1987-12-15 | 1989-06-22 | Toshiba Corp | Circuit breaker |
| JP2007329031A (en) * | 2006-06-08 | 2007-12-20 | Mitsubishi Electric Corp | Circuit breaker |
| CN201084657Y (en) * | 2007-08-04 | 2008-07-09 | 漳州马可电器科技有限公司 | A breaker with the arc-breaking/-quenching device |
-
2012
- 2012-12-05 CN CN201210517529.1A patent/CN103854931B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01159926A (en) * | 1987-12-15 | 1989-06-22 | Toshiba Corp | Circuit breaker |
| JP2007329031A (en) * | 2006-06-08 | 2007-12-20 | Mitsubishi Electric Corp | Circuit breaker |
| CN201084657Y (en) * | 2007-08-04 | 2008-07-09 | 漳州马可电器科技有限公司 | A breaker with the arc-breaking/-quenching device |
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| Publication number | Publication date |
|---|---|
| CN103854931B (en) | 2016-12-21 |
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Granted publication date: 20161221 Termination date: 20211205 |
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