CN2521745Y - Multi-pole lower voltage plastic casing breaker - Google Patents
Multi-pole lower voltage plastic casing breaker Download PDFInfo
- Publication number
- CN2521745Y CN2521745Y CN 01254890 CN01254890U CN2521745Y CN 2521745 Y CN2521745 Y CN 2521745Y CN 01254890 CN01254890 CN 01254890 CN 01254890 U CN01254890 U CN 01254890U CN 2521745 Y CN2521745 Y CN 2521745Y
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- Prior art keywords
- circuit breaker
- contact
- voltage circuit
- plastic shell
- supporter
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Abstract
The utility model discloses a multi-pole low-voltage plastic-case breaker, which comprises a pedestal, a machine cover, a rotating shaft of a dynamic contact, an operating mechanism, a handle, and a switch rod. A contact component and a release component are arranged in the pedestal. The operating mechanism, the dynamic contact, the release component and the switch rod are integrated together via an interpolar supporting part, and are arranged on a partition wall of the pedestal. With the utility model, the mechanism operation can be realized without covering the machine cover. Thus, fitting and use of the utility model are more convenient and the precise installation of the all mechanisms can be guaranteed to ensure the product quality.
Description
Technical field
The utility model multipolar low-voltage circuit breaker with plastic shell.
Background technology
Existing multipole low-voltage circuit breaker is as Chinese patent ZL 94103491.7 " a kind of multipole circuit breaker with die stamping insulation shell ".It comprises:
---a substrate, be separated into several isolation wards side by side and be used to place each electrode, each electrode comprises open circuit an assembly and a trip assembley therefor with separable contacts,
---capping is installed on the substrate with closure,
---an operating mechanism, be installed in a pair ofly with between the supporting bracket, this mechanism has one with connecting the toggle link device that spring is connected with trip dog,
---a handle is connected in the mechanism, and passes opening in the capping so that from peripheral operation,
---switch lever of being made by insulating material is as the support of the moving contact of all electrodes, and this bar is mechanically connected to and is installed on the toggle link device of doing limited rotation between closing of contact position and the open position,
---the trip assembley therefor of release lever and electrode, and the pawl interlock of trip dog;
Each breaker assembly is to be made of the hexahedron monolithic box that a plastic material is made, insert in the corresponding isolation ward of substrate, described box is equipped with rest(ing) contact, arc control device and a pair of intercell connector at least, and this intercell connector is connected on the trip assembley therefor of a binding post and the same utmost point; A mechanical actuation components of being made up of switch lever and mechanism is connected in the capping securely; The release lever of rotation is supported by stop, is arranged on the bottom surface of capping; A plurality of grooves and otch are arranged in the dividing plate of substrate, when the first subassembly A that constitutes by substrate and open circuit assembly and trip assembley therefor with by capping and when going up the mechanical actuation components of installing and constituting the second subassembly B and be connected, these grooves and otch are respectively as first area supported of switch lever and release lever.
The circuit breaker of said structure, the assembly that opens circuit adopts normal structure, and the product of different model is as long as after the quantity of electrode was determined, the structure of shell was exactly unique, can realize standardized production.But because a complete circuit breaker, its first part assembly A and second partly assembly B is installed in respectively in substrate and the capping, and both must just can operate after screw connects.And groove on the pedestal partition wall and breach directly mainly support and form center of rotation as movable contact bridge, release lever, made and assembling influences greatly, if make and rigging error bigger than normal, then the moving contact rotating shaft can not put in place, influences the circuit breaker work quality.
Summary of the invention
To be solved in the utility model is that existing circuit breaker must just can be operated after the integral installation, and product quality is made problems such as influence with rigging error is big, a kind of follow-on multipolar low-voltage circuit breaker with plastic shell is provided, it is installed each critical piece concentratedly on pedestal, realizes that lid does not get final product operating mechanism.The technical scheme that addresses the above problem is: multipolar low-voltage circuit breaker with plastic shell comprises:
---a pedestal, be separated into the several chambers side by side that are used to place each electrode by partition wall, each electrode comprises a contact assembly and a trip assembley therefor, each contact assembly comprises a hexahedron box that is arranged in the described pedestal corresponding chambers, in described hexahedron box, be provided with the fork-shaped moving contact and a pair of arc control device of a pair of fixed contact, relative configuration with fixed contact, the described a pair of fixed contact of described fork-shaped moving contact bridge joint
---one in order to supporting the rotating shaft of described moving contact,
---one is arranged on the cover that is used for sealing described support on the described pedestal,
---the operating mechanism with the moving contact interlock,
---a handle that is arranged on the described operating mechanism, this handle passes from described cover,
---the changer lever with described trip assembley therefor co-ordination, the boss of detaining again of described changer lever matches with the snap close of described operating mechanism,
It is characterized in that described operating mechanism, moving contact, trip assembley therefor and changer lever link into an integrated entity by the interpolar supporter, and be arranged on the partition wall of described pedestal.
Multipolar low-voltage circuit breaker with plastic shell of the present utility model is arranged on the pedestal owing to each mechanism concentrates, can not realize operation even do not cover cover to mechanism yet, make assembling and use more convenient, and because aforesaid operations mechanism, moving contact, trip assembley therefor and changer lever are combined into one by the interpolar supporter, can guarantee that each mechanism accurately installs, guarantee product quality.
This structure, described supporter is the reversed convex type member, have the semicircle small gap of the fulcrum of the rocking arm that supports described operating mechanism, a described changer lever of supporting and the semicircle big breach of a described rotating shaft of supporting, described small gap is arranged on convex bottom, described big breach is arranged on the convex sidepiece, and constitutes a complete bearing with side cover; The partition wall of described pedestal is provided with and the corresponding reversed convex type otch of described supporter shape, and described supporter connects with described partition wall buckle-type.Described supporter connects with the buckle-type of described partition wall and can be achieved in that on the otch of described partition wall and be provided with groove, is provided with on described supporter and the corresponding flange of described groove.Described supporter protuberance is shaped on counterbore, with corresponding hole engagement on the pedestal.
Described hexahedron box is provided with midfeather, prevent to produce the string arc, described a pair of fixed contact and arc control device branch are located at the both sides of described midfeather, the two big side planes that hexahedron is parallel to each other are provided with the trapeze cut that is used for placing described fixed contact, and described trapeze cut extends to midfeather; The described hexahedron box facet relative with rotating shaft has the upright groove of two rotations that are used to make the fork-shaped moving contact make vertical mounting plane direction.
For increasing the magnetic blow-out power that electric arc is blown into arc control device, be provided with a half turn arc blow-out structure that constitutes by magnetic conductive board, iron core and insulation board at the described fixed contact back side.
This structure, described fork-shaped moving contact is arranged on the axle vertical with described rotating shaft, when operating mechanism is depressed rotating shaft and driven the fork-shaped moving contact when contacting with fixed contact, generally, one of them moving contact elder generation and relative fixed contact contact, under the reaction force acts of fixed contact to this moving contact, moving contact is done to adjust to evenly stressed state of a pair of contact after axle moves among a small circle automatically around axis, therefore can remedy and make the error that causes.
Described cover is by lid and renovates the double-deck flip-shell structure that constitutes that lid is connected with described pedestal, renovates turning being arranged on and covers; Also be provided with the cavity that can hold various assistant releases and/or various auxiliary contacts covering.
Described trip assembley therefor is heat sensor and/or electromagnetic sensing element.
Described electromagnetic sensing element comprises armature and yoke, an intercell connector that is used to generate an electromagnetic field and back-moving spring of forming magnetic conductive loop, described intercell connector is connected with the contact of each utmost point contact assembly, described armature is provided with the bar of beating that matches with the set arm of changer lever, and described back-moving spring is fixed between a supporter and the armature.When having served as live stream and having flow through intercell connector, in magnetic conductive loop, produce induced field, the stressed back of armature drives set respective arms of beating on the bar strike changer lever on it, after rotating with changer lever, the boss of button again that is used for only stopping the operating mechanism snap close on the changer lever gets out of the way an angle, the snap close of operating mechanism is released the back and produces the tripping operation action, and fork-shaped moving contact revolution back is separated with fixed contact.This structure directly adopts the intercell connector induction field, can save solenoid in jumbo circuit breaker, makes structure become simple and compact.Described back-moving spring preferably adopts the torsion spring structure, and the supporter both sides are provided with four seams that are used to regulate the initial subtended angle of torsion spring.
Described heat sensor is two gold plaques, and directly be fixed on the described intercell connector, can make multipolar low-voltage circuit breaker with plastic shell of the present utility model have the characteristic of instantaneous trip and slight overlond trip simultaneously, and heat sensor and electromagnetic sensing element are designed to one, can make structure more compact.
Description of drawings
Fig. 1 is the contact assembly exploded perspective view.
Fig. 2 is the fork-shaped moving contact.
Fig. 3 is base construction figure.
Fig. 4 is the operating mechanism schematic diagram.
Fig. 5 is the supporter structural representation.
Fig. 6 is the structural representation of changer lever.
Fig. 7 is two gold and armature component structural representation.
Fig. 8 is the general structure schematic diagram that an embodiment is opened.
Embodiment
With reference to accompanying drawing 2,8, multipolar low-voltage circuit breaker with plastic shell, pedestal 1 with a die stamping insulation, this pedestal 1 is separated into several chambers side by side by partition wall and is used to place each electrode, each electrode comprises a contact assembly 30 and a trip assembley therefor, each contact assembly 30 comprises an interior hexahedron box 52 of corresponding chambers that is arranged on described pedestal, in described hexahedron box, be provided with a pair of fixed contact 5,6, a fork-shaped moving contact 7 and a pair of arc control device, the described a pair of fixed contact 5 of described fork-shaped moving contact 7 bridge joints, 6, described fork-shaped moving contact 7 is arranged on the axle 12, and can rotate flexibly around shaft centre line, the axle 12 of each utmost point is vertically set in the public rotating shaft 13.
With reference to Fig. 4,5, a pair of reversed convex type supporter 15,16 links into an integrated entity operating mechanism 14, rotating shaft 13 and changer lever 19, the quadric chain that the fulcrum that described operating mechanism 14 and rotating shaft 13 are known for everybody can be disintegrated, described supporter 15,16 have the fulcrum 91 of the rocking arm 90 that supports described operating mechanism, the semicircle small gap of a described changer lever 19 of supporting and the semicircle big breach 67 of a described rotating shaft 13 of supporting, described small gap 68 is arranged on convex bottom, described big breach 67 is arranged on the convex sidepiece, and constitutes a complete bearing 18 with side cover 17; The partition wall of described pedestal is provided with and the corresponding reversed convex type otch 63,64 of described supporter 15,16 shapes, and otch 63,64 is provided with groove 65,66 and hole 71,72, be provided with and described groove 65 at described supporter 15,16,66 and hole 71,72 corresponding flange 8,46 and counterbores 69,70.
With reference to Fig. 1, described hexahedron box 52 is provided with midfeather 54, described a pair of fixed contact was located at the both sides of described midfeather 54 in 5,6 minutes, the two big side planes 49,50 that hexahedron is parallel to each other are provided with the trapeze cut 56 that is used for placing described fixed contact 5,6, and described trapeze cut 56 extends to midfeather 54; Described hexahedron box 52 and rotating shaft 13 relative facets 47 have the upright groove 60,61 of two rotations that are used to make fork-shaped moving contact 7 make vertical mounting plane direction.
There is a deep trouth 57 center, following baseplane at described hexahedron box 52 along partition wall 54, be provided with a half turn arc blow-out structure 48 that is made of magnetic conductive board 9, iron core 10 and insulation board 11 in the described deep trouth 57, this half turn arc blow-out structure 48 just in time is positioned at the back side of described fixed contact 5,6.Pylon 58 on the insulation board 11 cooperates with the hole 59 of magnetic conductive board, forms complete half turn 48.
With reference to Fig. 6,7, the changer lever 19 of the trip assembley therefor of each electrode and co-ordination is with it formed a complete release, the boss 78 of detaining again of described changer lever 19 matches with the snap close 28 of described operating mechanism 14, and the trip assembley therefor of every utmost point comprises one by two golden 21 heat sensors that constitute and an electromagnetic sensing element.
Described electromagnetic sensing element comprises the armature 20 of forming magnetic conductive loop and yoke 94, an intercell connector that is used to generate an electromagnetic field 98 and a back-moving spring 29, described intercell connector 98 is connected with the contact 5 of each utmost point contact assembly 30, described armature 20 is provided with and changer lever 19 set arms 41,73,74 match make bar 75, described back-moving spring 29 is fixed between a supporter 22 and the armature 20.Described back-moving spring 29 adopts the torsion spring structure, and supporter 22 both sides are provided with four seams 42,43,44,45 that are used to regulate torsion spring 29 initial subtended angles.Described armature 20 adopts dull and stereotyped or " U " shape plate structure, is connected across yoke 94 two ends.Intercell connector 98 can be designed to the conductive plate of spatial form, and an end links to each other with fixed contact 5, and the other end is connected on the binding post after passing the magnetic conductive loop that is made of armature 20 and yoke 94; Also can adopt the conductive plate of flat shape, connect with the galvanic circle by being welded on another conductive plate that passes magnetic conductive loop 101, what adopt in the present embodiment is latter's structure, and it is comparatively convenient to make.Described pair of gold plaque 21 is fixed on the described conductive plate 101, after the conductive plate 101 energising back heatings the two gold of heat transferred produced thermal deformation for 21.In the circuit breaker of some low capacities, two gold plaques 21 can directly be connected in series in the circuit, to produce enough distortion.
With reference to Fig. 8, described cover 40 is by lid 40a and renovates the double-deck flip-shell structure that 40b constitutes that lid 40a is connected with described pedestal 1, renovates turning being arranged on of 40b and covers on the 40a; On lid 40a, also be provided with the cavity 99,100 that can hold various assistant releases and/or various auxiliary contacts.Operating grip 88 passes from described cover 40.
Claims (12)
1, multipolar low-voltage circuit breaker with plastic shell comprises:
---a pedestal (1); Be separated into several chambers that are used for placing each electrode side by side by partition wall; Each electrode comprises a contact assembly (30) and an electrical apparatus release; Each contact assembly (30) comprises a hexahedron box (52) that is arranged in described pedestal (1) corresponding chambers; In described hexahedron box, be provided with a pair of static contact (5; 6), with described static contact (5; 6) the fork-shaped moving contact (7) and a pair of arc-chutes that relatively dispose; The described a pair of static contact (5 of described fork-shaped moving contact (7) bridge joint; 6)
---a rotating shaft (13) in order to support described moving contact (7),
---one is arranged on the cover (40) that is used for sealing described support on the described pedestal (1),
---the operating mechanism (14) with moving contact (7) interlock,
---a handle (88) that is arranged on the described operating mechanism (14), this handle (88) passes from described cover (40),
---a release, comprise the changer lever (19) of sensing element and co-ordination with it, the boss of button again (78) of described changer lever (19) matches with the snap close (28) of described operating mechanism (14),
The changer lever (19) that it is characterized in that described operating mechanism (14), moving contact (7) and release links into an integrated entity by interpolar supporter (15,16), and is arranged on the partition wall (54) of described pedestal.
2, multipolar low-voltage circuit breaker with plastic shell as claimed in claim 1, it is characterized in that described supporter (15,16) be the reversed convex type member, have the fulcrum (91) of the rocking arm (90) that supports described operating mechanism, the semicircle small gap of a described changer lever of supporting (19) and the semicircle big breach (67) of a described rotating shaft of supporting (13), described small gap (68) is arranged on convex bottom, described big breach (67) is arranged on the convex sidepiece, and constitutes a complete bearing (18) with side cover (17); The partition wall of described pedestal is provided with and described supporter (15,16) the corresponding reversed convex type otch of shape (63,64), and described supporter (15,16) connects with described partition wall (51,62) buckle-type.
3, multipolar low-voltage circuit breaker with plastic shell as claimed in claim 2, it is characterized in that described supporter (15,16) with described partition wall (51,62) buckle-type connection is achieved in that the otch (63,64) at described partition wall is provided with groove (65,66), at described supporter (15,16) be provided with and the corresponding flange of described groove (65,66) (8,46).
4, multipolar low-voltage circuit breaker with plastic shell as claimed in claim 3 is characterized in that described supporter (15,16) protuberance is shaped on counterbore (69,70), goes up corresponding hole (71,72) engagement with pedestal (1).
5, multipolar low-voltage circuit breaker with plastic shell as claimed in claim 4, it is characterized in that described hexahedron box (52) is provided with midfeather (54), described a pair of fixed contact (5), (6) and arc control device branch are located at the both sides of described midfeather (54), two big side planes (49), (50) that hexahedron is parallel to each other are provided with the trapeze cut (56) that is used for placing described fixed contact (5,6), and described trapeze cut (56) extends to midfeather (54); The facet (47) that described hexahedron box (52) is relative with rotating shaft (13) has the upright groove (60,61) of two rotations that are used to make fork-shaped moving contact (7) make vertical mounting plane direction.
6, multipolar low-voltage circuit breaker with plastic shell as claimed in claim 5 is characterized in that described fixed contact (5, the 6) back side is provided with a half turn arc blow-out structure (48) that is made of magnetic conductive board (9), (10) unshakable in one's determination and insulation board (11).
7,, it is characterized in that described fork-shaped moving contact (7) is arranged on the axle (12) vertical with described rotating shaft as any one described multipolar low-voltage circuit breaker with plastic shell of claim 1～6.
8, multipolar low-voltage circuit breaker with plastic shell as claimed in claim 7, it is characterized in that described cover (40) is by lid (40a) and renovates the double-deck flip-shell structure that (40b) constitutes, lid (40a) is connected with described pedestal (1), renovates that (40b) is turning to be arranged on the lid (40a); On lid (40a), also be provided with the cavity (99,100) that can hold various assistant releases and/or various auxiliary contacts.
9, multipolar low-voltage circuit breaker with plastic shell as claimed in claim 8, the sensing element that it is characterized in that described release is heat sensor and/or electromagnetic sensing element.
10, multipolar low-voltage circuit breaker with plastic shell as claimed in claim 9, it is characterized in that described electromagnetic sensing element comprises armature (20) and yoke (94), an intercell connector that is used to generate an electromagnetic field (98) and a back-moving spring (29) of forming magnetic conductive loop, described intercell connector (98) is connected with the contact (5) of each utmost point contact assembly (30), described armature (20) is provided with and the set arm (41 of changer lever (19), 73, that 74) matches makes bar (75), and described back-moving spring (29) is fixed between a supporter (22) and the armature (20).
11, multipolar low-voltage circuit breaker with plastic shell as claimed in claim 10, it is characterized in that described back-moving spring (29) adopts the torsion spring structure, supporter (22) both sides are provided with four seams (42,43 that are used to regulate the initial subtended angle of torsion spring (29), 44,45).
12, multipolar low-voltage circuit breaker with plastic shell as claimed in claim 11 is characterized in that described heat sensor is two gold plaques (21), and is fixed on the described intercell connector (98).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01254890 CN2521745Y (en) | 2001-11-22 | 2001-11-22 | Multi-pole lower voltage plastic casing breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01254890 CN2521745Y (en) | 2001-11-22 | 2001-11-22 | Multi-pole lower voltage plastic casing breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2521745Y true CN2521745Y (en) | 2002-11-20 |
Family
ID=33664128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01254890 Expired - Lifetime CN2521745Y (en) | 2001-11-22 | 2001-11-22 | Multi-pole lower voltage plastic casing breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2521745Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134588A (en) * | 2014-07-17 | 2014-11-05 | 正泰集团股份有限公司 | Operation device of miniature multi-pole circuit breaker |
-
2001
- 2001-11-22 CN CN 01254890 patent/CN2521745Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134588A (en) * | 2014-07-17 | 2014-11-05 | 正泰集团股份有限公司 | Operation device of miniature multi-pole circuit breaker |
| WO2016008298A1 (en) * | 2014-07-17 | 2016-01-21 | 正泰集团股份有限公司 | Operation device of multi-pole miniature circuit breaker |
| CN104134588B (en) * | 2014-07-17 | 2016-03-02 | 正泰集团股份有限公司 | A kind of operating means of multipole small-size circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20051116 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |