CN101281832B - Insulation protection structure of contactor - Google Patents
Insulation protection structure of contactor Download PDFInfo
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- CN101281832B CN101281832B CN200710090308XA CN200710090308A CN101281832B CN 101281832 B CN101281832 B CN 101281832B CN 200710090308X A CN200710090308X A CN 200710090308XA CN 200710090308 A CN200710090308 A CN 200710090308A CN 101281832 B CN101281832 B CN 101281832B
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Abstract
The present contact provides a contactor, which comprises a base unit (10) and a pedestal unit (20), a control contact unit (90), and a power supply contact unit (91) in the cavity formed by the pedestal unit (20); a support (71) mounted inserted in the cavity of the pedestal unit (20) in a movable manner, movable contacts (51a, 51b), and movable power supply contact (61), and movable iron core (72) mounted on the support (71) to implement interlock; an insulating separating part (66) is arranged between the control contact unit (90) and the power supply contact unit (91) and separate the space in the pedestal to two spaces; the insulating separating part is attached to the support (71), so that the two spaces are separated and sealed from each other, and thereby insulating isolation between the contact unit (90) and the power supply contact unit (91) is implemented. In the present invention, the parts of the contactor are easy to assembly and service, the dimensions of the device can be reduced, and a safe and stable working environment is provided for the contacts.
Description
Technical field
The present invention relates to a kind of contactor, the contactor of good insulation between particularly a kind of control sets of contacts unit that can guarantee contactor and the power contact head group unit.
Background technology
A kind of existing contactor internal structure as shown in Figure 1, the pedestal 1 of contactor is a single piece, has a division surface 11 on the pedestal 1, described division surface 11 is divided into the space in the pedestal two parts up and down of connection.During installation, the contact supporter 17 of contact 14 and auxiliary moving contact 12 will be installed in the process of pedestal having initiatively, need with above-mentioned parts from the reservation installing hole of pedestal bottom upwards (along the direction of arrow shown in Figure 1) be inserted into the pedestal.Because pedestal is a single piece, therefore before contact supporter 17 is installed, need earlier moving contact component to be installed on the contact supporter 17, in order to guarantee that auxiliary moving contact 12 can enter pedestal smoothly, on division surface 11, must be provided with the hole 13 that allows auxiliary moving contact 12 to pass through, this hole 13 can not only make contact supporter 17, and auxiliary moving contact 12 is passed through; After the installation, between divisional plane and contact supporter 17, can leave a very big space, two-layer up and down can not separately the use.This just causes when contactor is worked, because the perforate between division surface 11 and the contact supporter 17 can not be sealed, make the space in the pedestal be in connected state, therefore, division surface 11 between auxiliary contact group (auxiliary moving contact 12, auxiliary fixed contact 15) and main contact group (initiatively contact 14, main fixed contact 16) can't be isolated main contact and auxiliary contact fully, and therefore the effect of insulation is undesirable; That is to say that when improper action appearred in contactor, the electric arc that the main contact group produces can pass through from the connected component between last sheaf space and the lower layer space, and the auxiliary contact group is caused adverse effects such as electric shock.
The unfavorable traditional design of this insulation effect also exists the bigger defective of product height, this is because the possibility of the electric puncture of this design is very big, therefore need to increase the distance L 1 between active contact 14 and the auxiliary fixed contact 15, to reduce the possibility that punctures, make the contactor build of this design bigger.
In addition, also have a kind of contactor at present, its base housing adopts the mode of left, center, right splicing to combine, and the centre is the contact supporter, about be respectively two and half Room.In order to reduce the probability of the up and down electric puncture of two-layer contact, about the centre position of two pedestal half Room a demarcation strip respectively is set in the hope of realizing insulating effect.Yet, there is error in the manufacturing, the splicing of left and right sides dividing plate is difficult in the division surface that forms an integral body up and down between two sheaf spaces, therefore still can occur and first kind of problem that prior art is same, and the design of splicing about this has also destroyed the structure of the separate distribution of two sheaf spaces up and down, the independent installation, maintenance and the isolated insulation of two-layer part about being unfavorable for.
Summary of the invention
The objective of the invention is to overcome deficiency and the defective that above-mentioned prior art exists, a kind of contactor that has the integral insulation isolation surface is provided, can not only guarantee that contactor is separate between two layer elements up and down, guarantee convenient, the safety of contactor layering installation and maintenance; More can be under the situation that reduces the contactor size, for contact provides a more stable operational environment.
Above-mentioned purpose of the present invention is achieved through the following technical solutions.
Contactor of the present invention comprises a base unit (10) and a base unit (20) that is positioned on the described base unit (10); Coil (80), fixed armature (81) are housed in the described base unit (10), are connected to instruction terminal on the coil (80) (82a, 82b); A control sets of contacts unit (90) and a power contact head group unit (a 91) job in the cavity that described base unit (20) forms; Mainly (51a is 51b) with fixing control contact (50a, 50b) composition by movable control contact in described control sets of contacts unit (90); Described power contact head group unit (91) mainly is made up of movable power supply contact (61) and fixed power source contact (60); A supporter (71) movably inserts in the cavity that is installed to base unit (20) formation, the movable control contact (51a of (90) in the control sets of contacts unit is installed on the described supporter (71), 51b), movable power supply contact (61) in power contact head group unit (91) and movable core (72), described supporter (71) be used to realize described movable control contact (51a, 51b), the interlock function of the movable core (72) in movable power supply contact (61) and the base unit (10).
Contactor of the present invention comprises that also the insulation isolation surface (66) of an integral body is positioned between control sets of contacts unit (90), the power contact head group unit (91), the insulation isolation surface (66) of described integral body closely cooperates with supporter (71), make two sheaf spaces up and down in the base unit (20) separate fully, to realize the insulation blanketing effect of control sets of contacts unit (90) and power contact head group unit (91).
Described integral insulation isolation surface (66) is positioned between control sets of contacts unit (90), the power contact head group unit (91), and is divided into the cavity space in the pedestal two-layer; The installing hole (73) of the described supporter (71) on the described insulation isolation surface (66) only allows supporter (71) to pass through, do not allow any moving contact to pass through, and described insulation isolation surface (66) and supporter (71) are fitted, thereby two sheaf spaces that make the cavity in the described base unit (20) are separate and sealing, realize the insulation blanketing effect of control sets of contacts unit (90) and power contact head group unit (91).
Described base unit (20) can be a single piece, also can be by control sets of contacts unit pedestal (53a, 53b), power contact head group unit pedestal (63) combines up and down, the insulation isolation surface (66) of described integral body is positioned at power contact head group unit pedestal (63) and control sets of contacts unit pedestal (53a, 53b), form its interface
The installation site of the insulation isolation surface (66) of described integral body is that the insulation isolation surface (66) with integral body is located at power contact head group unit pedestal (63) and/or control sets of contacts unit pedestal (53a, 53b), at this moment, an installing hole (73) is positioned on the complete insulation isolation surface (66), this installing hole (73) only allows supporter (71) to pass through, do not allow any contact to pass through, realizing the insulation isolation surface (66) of described integral body and closely cooperating of supporter (71), and two sheaf spaces up and down in the base unit (20) are kept apart mutually fully.Two sheaf spaces up and down after the separation no longer interact, thereby realize the insulation isolation features of insulation isolated controlling sets of contacts unit (90) and power contact head group unit (91).
(53a 53b) is fastened with power contact head group unit pedestal (63) the control sets of contacts unit pedestal of described contactor.Described clamping is by control sets of contacts unit pedestal (53a, corresponding recesses (30) coupling on T shape 53b) and/or L shaped projection (32) and the power contact head group unit pedestal (63), (53a is 53b) with the clamping function of power contact head group unit pedestal (63) to realize control sets of contacts unit pedestal; Or by the T shape on the power contact head group unit pedestal (63) and/or L shaped projection (32) and control sets of contacts unit pedestal (53a, the 53b) corresponding recesses on (30) coupling realize the clamping function of two-layer pedestal.Described groove (30) is complementary with projection (32), is T shape and/or L shaped, and can further design and adopt the dovetail groove form, to help realizing the stable structure that clamps.
Described contactor also can contain one or more covers (99,64a, 64b), is used for all or part of space of auxiliary closed base unit (20), covers described control sets of contacts unit (90) and/or power contact head group unit (91).
With as shown in Figure 1 prior art embodiments and embodiments of the invention contrast shown in Figure 2 as can be known, after the contactor installation, the perforate (13) between the divisional plane of prior art (11) and the contact supporter (17) is not sealed; And the integral insulation isolation surface (66) of contactor of the present invention closely cooperates with supporter (71), thereby two sheaf spaces are kept apart fully up and down, therefore at movable control contact (51a, 51b) with fixing control contact (50a, when 50b) being switched on or switched off, movable power supply contact (61) and fixed power source contact (60) be when being switched on or switched off, and all can guarantee good insulation between control sets of contacts unit (90) and the power contact head group unit (91); That is to say because two sheaf spaces are separate fully up and down, no longer include mutual effect, therefore even break down, main circuit electric arc can not have any impact to auxiliary circuit yet, improved greatly contactor fail safe, increased useful life of contactor.
Because the insulation isolation performance of contactor of the present invention is reliable, even fixing control contact (50a, 50b) and movably the distance L 2 between the power supply contact (61) is very short, electric breakdown phenomena can not appear, as shown in Figure 2, with respect to prior art shown in Figure 1, the present invention can reduce the height of contactor base unit (20) significantly.
Additional benefit of the present invention is; Even pedestal adopts when split type up and down, described movable control contact (51a, 51b) and fixing control contact (50a, 50b) the control sets of contacts unit (90) at place is an independently wiring layer of one deck; The power contact head group unit (91) at described movable power supply contact (61) and fixed power source contact (60) place is an independently wiring layer composition of one deck; And the instruction terminal on the coil (80) of base unit (10) (82a 82b) is a wiring layer independently; The instruction terminal of control sets of contacts unit (90) wiring layer, power contact head group unit (91) wiring layer, coil (82a, 82b) wiring layer is arranged to three layers of upper, middle and lowers respectively, is convenient to client's difference, and is convenient to client's wiring; Especially according to the design, can be when base unit (20) carries out partial installation to control sets of contacts unit (90), be that base unit (20) is by power contact head group unit pedestal (63), control sets of contacts unit pedestal (53a, when 53b) combining, described integral insulation isolation surface (66) is with power contact head group unit pedestal (63) and control sets of contacts unit pedestal (53a, 53b) isolate, make the assembled in the base unit (20) more convenient, clear and definite.And the present invention is only by integral type insulation isolation surface (66), need not any splicing just base unit (20) is divided into two-layerly, kept the independence separately and the integrality of interior each contact unit of base cavity, and the installation, maintenance of each several part is independent of each other.
And when control sets of contacts unit (90) can adopt partial installation up and down, kind and quantity according to customer demand decision contact were easy to that control sets of contacts unit (90) is combined into one or more groups and often open and/or the normally closed interlock unit.
Description of drawings
Fig. 1 is the cutaway view of the internal structure of prior art contactor pedestal;
Fig. 2 is the base unit cutaway view of a specific embodiment of contactor of the present invention;
Fig. 3 is the schematic diagram of another specific embodiment of contactor of the present invention;
Fig. 4 is a decomposition view embodiment illustrated in fig. 3;
Fig. 5 is the decomposition view of internal structure embodiment illustrated in fig. 3;
Fig. 6 is the cutaway view of internal structure embodiment illustrated in fig. 3;
Fig. 7 is the cutaway view of supporter embodiment illustrated in fig. 3 and correlated parts thereof;
Fig. 8 is that base unit embodiment illustrated in fig. 3 and base unit position concern schematic diagram;
Fig. 9 is the decomposing schematic representation of base unit embodiment illustrated in fig. 3;
The internal structure schematic diagram of Figure 10 base unit embodiment illustrated in fig. 3;
Figure 11, Figure 12 are respectively the schematic diagram of the present invention about two specific embodiments of base assembly connected mode.
Embodiment
Below by accompanying drawing narration embodiments of the invention:
An embodiment shown in Figure 3, base unit (20) is contained in above the base unit (10), base unit (20) general configuration, parts constitute as shown in Figure 4, base unit (20) is by overhead guard (99), control sets of contacts unit pedestal (53a, 53b), guard shield (64a, 64b), power contact head group unit pedestal (63) combines.A built-in supporter (71), have on it movable control contact (51a, 51b), movable power supply contact (61), movable core (72); A control sets of contacts unit (90) and a power contact head group unit (a 91) job in the cavity that described base unit (20) forms.
Wherein, control sets of contacts unit (90) is arranged on above the power contact head group unit (91).Control sets of contacts unit (90) by movable control contact (51a, 51b), fixing control contact (50a, 50b), control terminal (52) constitutes, and be positioned at control sets of contacts unit pedestal (53a, 53b) in; Power contact head group unit (91) is constituted, and is arranged in power contact head group unit pedestal (63) by movable power supply contact (61), fixed power source contact (60), power supply terminal (62).(53a 53b) also is distribution up and down with power contact head group unit pedestal (63) to control sets of contacts unit pedestal, is consistent with the structure that connects up up and down.
Shown in Figure 5, fixing control contact (50a, 50b) be contained in control sets of contacts unit pedestal (53a, 53b) in, and fixed power source contact (60) is contained in the power contact head group unit pedestal (63).Movable control contact (51a, 51b) and/or movably power supply contact (61), movable core (72) are contained on the supporter (71), they can be at control sets of contacts unit pedestal (53a, 53b), move up and down in the power contact head group unit pedestal (63), make movable control contact (51a, 51b) (50a 50b) realizes connection, break function with fixing control contact; If supporter (71) is not adorned movable control contact, just realize connection, break function by movable power supply contact (61) and fixed power source contact (60).The insulation isolation surface (66) of an integral body has covered the entire upper surface of power contact head group unit pedestal (63), guarantees good insulation between control signal and the power supply signal in connection, disconnection process.
Fig. 5, shown in Figure 6, coil (80), fixed armature (81) are housed in the base unit of contactor (10), are connected to instruction terminal on the coil (80) (82a, 82b); Be provided with control sets of contacts unit (90) and power contact head group unit (91) in the base unit (20); Movable control contact (51a, 51b), movable power supply contact (61), movable core (72) realize interlock by supporter (71).The control sets of contacts unit of this contactor and power contact head group unit (91) are two-layer and distribute, movable control contact (51a, 51b) and between the movable power supply contact (61) an integral insulation isolation surface (66) is arranged, the supporter installing hole (73) on the described integral insulation isolation surface (66) only allow supporter (71) by and described integral insulation isolation surface (66) and supporter (71) are closely cooperated.After supporter installs, form two-layer up and down separate, the space that is independent of each other in the pedestal.
During coil (80) energising, produce suction between fixed armature (81) and the movable core (72), movable control contact (51a is housed, 51b) and/or the supporter (71) of movable power supply contact (61) will move downward, movable control contact (51a, 51b) (movable power supply contact (61) is connected with fixed power source contact (60) for 50a, 50b) connection and/or disconnection with fixing control contact.During coil (80) outage, fixed armature (81) and movable core (72) are under the effect of spring reset power, supporter (71) is resetted, movable control contact (51a, 51b) with fixing control contact (50a, 50b) disconnection and/or connection, movable power supply contact (61) disconnects with fixed power source contact (60).Because integral insulation isolation surface (66) is kept apart two sheaf spaces fully between control sets of contacts unit (90) and the power contact head group unit (91), thereby movable control contact, movable power supply contact (61) respectively with fixing control contact (50a, 50b), fixed power source contact (60) is when being switched on or switched off, and can guarantee good insulation between control sets of contacts unit (90) and the power contact head group unit (91); Therefore even break down, main circuit electric arc can not have any impact to auxiliary circuit yet, improved greatly contactor fail safe, increased useful life of contactor.
Shown in Figure 7, control sets of contacts unit (90) wiring layer, power contact head group unit (91) wiring layer, coil instruction terminal (82a, 82b) wiring layer is arranged to three layers of upper, middle and lowers, the distribution of disassembling with wiring layer of pedestal is consistent, also adopt the structure of upper, middle and lower, be convenient to client's difference like this, and be convenient to client's wiring.Control sets of contacts unit (90) can be easy to be combined into one or more groups according to customer demand and often open and/or the normally closed interlock unit, as being assembled into 2NO+2NC, 3NO+1NC, 1NO+3NC, 4NO, 4NC sets of contacts; The movable control of part contact, fixing control contact can not be assembled into 1NO when not adorning, 1NC, and 1NO+1NC, 2NO, 2NC, 2NO+1NC, 1NO+2NC, 3NO, the 3NC sets of contacts also can not adorned sets of contacts.Wherein, NO represents the normally open contact group, and NC represents the normally closed interlock group.
Shown in Figure 8, the power contact head group unit pedestal (63) of base unit (20) is contained in above the base (83) of base unit (10), and (64a 64b) covers power supply terminal (62) to guard shield, and overhead guard (99) covers control terminal (52).Coil (80), fixed armature (81) are contained in the pedestal (83), and (82a 82b) is contained on the pedestal (83) and be connected to instruction terminal on the coil (80).
Shown in Fig. 9,10, control sets of contacts unit pedestal (53a, 53b) along axis (N, N ') pack into and fit together in both sides, (51a 51b) covers on the inside, control sets of contacts unit pedestal (53a will movably to control contact, 53b) be installed on above the power contact head group unit pedestal (63), clamp forms such as form such as T-slot, L shaped groove, dovetail groove.
Figure 11,12 is depicted as control sets of contacts unit pedestal, and (53a 53b) clamps an embodiment that is contained in above the power contact head group unit pedestal (63).Power contact head group unit pedestal (63) is provided with similar T shape or L shaped projection (32), and (53a 53b) is provided with the similar T shape that can hold similar T shape or L shaped projection (32) or L shaped groove (30) to control sets of contacts unit pedestal.Equally, similar T shape or L shaped projection (32) can be formed on control sets of contacts unit pedestal (53a, 53b), similar T shape or L shaped groove (30) can be formed on the power contact head group unit pedestal (63), and T shape or L shaped groove (30) also can adopt other forms such as similar dovetail groove.
The present invention is not limited to specifically described embodiment signal naturally, but can extension to other some embodiment, therefore can expect and to carry out numerous modifications and variations to contactor, all modifications and changing all in the scope of the present invention's design, all details can be with technical identical or equivalent element replacement.
Claims (7)
1. contactor comprises:
A base unit (10) and a base unit (20) that is positioned on the described base unit (10);
Control sets of contacts unit (90) and a power contact head group unit (91) are positioned at the cavity of described base unit (20) formation;
Mainly (51a is 51b) with fixing control contact (50a, 50b) composition by movable control contact in described control sets of contacts unit (90);
Described power contact head group unit (91) mainly is made up of movable power supply contact (61) and fixed power source contact (60);
A supporter (71) movably inserts in the cavity that is installed to base unit (20) formation, movable control contact (51a in the control sets of contacts unit (90) is installed on it, 51b) and power contact head group unit (91) in movable power supply contact (61) and the movable core (72) in the base unit (10), described supporter (71) be used to realize described movable control contact (51a, 51b), the interlock function of movable power supply contact (61), movable core (72);
It is characterized in that:
The insulation isolation surface (66) of an integral body is positioned between control sets of contacts unit (90) and the power contact head group unit (91), the insulation isolation surface (66) of described integral body closely cooperates with supporter (71), make two sheaf spaces up and down in the base unit (20) separate, to realize the insulation blanketing effect between control sets of contacts unit (90) and the power contact head group unit (91);
Described base unit (20) is by control sets of contacts unit pedestal (53a, 53b), power contact head group unit pedestal (63) combines up and down, the insulation isolation surface (66) of described integral body is positioned at power contact head group unit pedestal (63) and control sets of contacts unit pedestal (53a, 53b), form its interface;
(53a 53b) is fastened with power contact head group unit pedestal (63) described control sets of contacts unit pedestal.
2. contactor according to claim 1, the insulation isolation surface (66) of described integral body be located at power contact head group unit pedestal (63) and/or control sets of contacts unit pedestal (53a, 53b) on.
3. contactor according to claim 1, described clamping is by control sets of contacts unit pedestal (53a, the coupling of the corresponding recesses (30) on T shape 53b) and/or L shaped projection (32) and the power contact head group unit pedestal (63) realizes described control sets of contacts unit pedestal, and (53a is 53b) with the clamping function of power contact head group unit pedestal (63).
4. contactor according to claim 3, described groove (30) adopts the dovetail groove form, and is complementary with described projection (32).
5. contactor according to claim 1, described clamping is by the T shape on the power contact head group unit pedestal (63) and/or L shaped projection (32) and control sets of contacts unit pedestal (53a, the coupling of the corresponding recesses 53b) (30) realizes described control sets of contacts unit pedestal, and (53a is 53b) with the clamping function of power contact head group unit pedestal (63).
6. contactor according to claim 5, described groove (30) adopts the dovetail groove form, and is complementary with described projection (32).
7. contactor according to claim 1 also comprises one or one group cover that is used for auxiliary all or part of space, closed base unit (20) (99,64a, 64b), covers described control sets of contacts unit (90) and/or power contact head group unit (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710090308XA CN101281832B (en) | 2007-04-05 | 2007-04-05 | Insulation protection structure of contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710090308XA CN101281832B (en) | 2007-04-05 | 2007-04-05 | Insulation protection structure of contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101281832A CN101281832A (en) | 2008-10-08 |
| CN101281832B true CN101281832B (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710090308XA Active CN101281832B (en) | 2007-04-05 | 2007-04-05 | Insulation protection structure of contactor |
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| Country | Link |
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| CN (1) | CN101281832B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745887B (en) * | 2014-01-14 | 2015-11-25 | 德力西电气有限公司 | A kind of protective cover rotates assembly structure and has the contactor of this structure |
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|---|---|---|---|---|
| US4337447A (en) * | 1980-03-13 | 1982-06-29 | Starkstrom Gummersbach Gmbh | Switch |
| CN2232159Y (en) * | 1995-01-23 | 1996-07-31 | 李欣 | Self-adaptation A.C. contactor |
| EP0918347A1 (en) * | 1997-11-21 | 1999-05-26 | Abb Control | Auxiliary contact block for a contactor |
| US6111488A (en) * | 1998-08-25 | 2000-08-29 | Fuji Electric Co., Ltd. | Electromagnetic contactor |
| CN1291341A (en) * | 1998-12-04 | 2001-04-11 | 施耐德电器工业公司 | Electromechanical contactor |
| EP0734037B1 (en) * | 1995-03-20 | 2001-06-20 | Nec Corporation | Surface mount type leadless electromagnetic relay |
| CN201041789Y (en) * | 2007-04-05 | 2008-03-26 | 浙江正泰电器股份有限公司 | Insulation protection structure for contact |
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2007
- 2007-04-05 CN CN200710090308XA patent/CN101281832B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4337447A (en) * | 1980-03-13 | 1982-06-29 | Starkstrom Gummersbach Gmbh | Switch |
| CN2232159Y (en) * | 1995-01-23 | 1996-07-31 | 李欣 | Self-adaptation A.C. contactor |
| EP0734037B1 (en) * | 1995-03-20 | 2001-06-20 | Nec Corporation | Surface mount type leadless electromagnetic relay |
| EP0918347A1 (en) * | 1997-11-21 | 1999-05-26 | Abb Control | Auxiliary contact block for a contactor |
| US6111488A (en) * | 1998-08-25 | 2000-08-29 | Fuji Electric Co., Ltd. | Electromagnetic contactor |
| CN1291341A (en) * | 1998-12-04 | 2001-04-11 | 施耐德电器工业公司 | Electromechanical contactor |
| CN201041789Y (en) * | 2007-04-05 | 2008-03-26 | 浙江正泰电器股份有限公司 | Insulation protection structure for contact |
Non-Patent Citations (1)
| Title |
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| JP特开平8-87942A 1996.04.02 |
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| CN101281832A (en) | 2008-10-08 |
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