CN102768920A - Normally closed auxiliary contact module and unipolar alternating current contactor with same - Google Patents
Normally closed auxiliary contact module and unipolar alternating current contactor with same Download PDFInfo
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- CN102768920A CN102768920A CN2012100966164A CN201210096616A CN102768920A CN 102768920 A CN102768920 A CN 102768920A CN 2012100966164 A CN2012100966164 A CN 2012100966164A CN 201210096616 A CN201210096616 A CN 201210096616A CN 102768920 A CN102768920 A CN 102768920A
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Abstract
The invention discloses a normally closed auxiliary contact module and a unipolar alternating current contactor with the same. The normally closed auxiliary contact module includes a housing, a contact support piece, a bridge contact, a stationary contact and a spring, wherein the housing is provided with a tongue-shaped element rest; the contact support piece is mounted in the housing and provided with an open slot; one slot wall of the open slot is fitted in a gas formed between the tongue-shaped element rest and a side cavity wall of an accommodating cavity, so that the contact support piece can perform the oriented movement along the tongue-shaped element rest; the bridge contact is clamped and mounted at the bottom of the contact support piece; and the spring is elastically tensioned and propped between the bottom end of the contact support piece and the bottom cavity wall of the accommodating cavity. The unipolar alternating current contactor comprises the normally closed auxiliary contact module, a base, and a main contact support piece. By adopting the structure, the normally closed auxiliary contact module has the characteristics of simple structure, fewer parts, small size and easiness in assembly, and is applied onto the unipolar alternating contactor to form a unipolar alternating contactor with small size, light weight and extremely compact structure, thereby lowering the product cost.
Description
Technical field
The present invention relates to a kind of contactor, particularly relate to a kind of normally closed auxiliary contact module and one pole A.C. contactor thereof of contactor.
Background technology
Contactor is a kind of control apparatus of automation, and it is to utilize coil to flow through electric current to produce magnetic field, makes contact closure, to reach the electrical equipment of control load.
The contactor of prior art generally all need be equipped with normally closed auxiliary contact.The normally closed auxiliary contact module of prior art comprises shell, contact supporter, bridge-shaped contact, touch spring, fixed contact, back-moving spring, binding post etc. usually.Bridge-shaped contact is installed in the window of contact supporter, relies on the effect of touch spring and remains on the appropriate location and produce contact pressure; The contact supporter is assemblied in the groove in the middle of the shell, forms kinematic pair by part circumferential profile and the recessed surface of shell, moves up and down along groove, drives the bridge-shaped contact motion, and bridge-shaped contact does relative motion along contact supporter window sidewall again simultaneously; Back-moving spring is installed between contact supporter lower end and the outer casing bottom, with applied external force, the contact supporter is resetted.This normally closed auxiliary contact modular structure of prior art is complicated, and volume is big, assembles loaded down with trivial detailsly, is unfavorable for the miniaturization of contactor, and has caused the rising of material and cost of human resources.
A kind of one pole A.C. contactor of prior art is because little, the compact conformation of volume is difficult for installing auxiliary contact module.Do not find to have the one pole A.C. contactor of auxiliary contact module at present as yet; In the prior art; Thereby normally become auxiliary contact to the utmost point in the two poles of the earth of bipolar A.C. contactor through transforming and form main contact, a special-shaped double-pole contactor of auxiliary contact very very; The auxiliary fixed contact of special-shaped double-pole contactor and its binding post rely on tapping screw to lock usually and compress each other to form to conduct electricity behind the insulation crust and be connected; Do not meet the GB14048.1-20067.1.2 current-carrying part and connect in about the regulation of " contact pressure that is electrically connected should not transmitted through insulating material (but except pottery or performance other material preferably) ", so belong to non-product up to standard.
Summary of the invention
One of the object of the invention is to overcome the deficiency of prior art; A kind of normally closed auxiliary contact module is provided; Have simple in structure, use that parts are few, volume is little, assembling is easy to characteristics, very help the miniaturization of contactor, and can reduce material cost and cost of human resources.
Two of the object of the invention is to overcome the deficiency of prior art; A kind of one pole A.C. contactor is provided; Be with normally closed auxiliary contact module application on the one pole A.C. contactor; Make product National standard to stipulate, have the characteristics that volume is little, in light weight, structure is very compact again, and can reduce material cost and cost of human resources.
The technical solution adopted for the present invention to solve the technical problems is: a kind of normally closed auxiliary contact module comprises shell, contact supporter, bridge-shaped contact, fixed contact and spring; Shell is provided with the container cavity of lateral openings, is provided with the prominent muscle of a ligule by the top of container cavity to extending below; The contact supporter is packed in the container cavity of shell; Contact supporter top establish one can cooperate the prominent muscle of ligule open slot; A wherein cell wall of open slot is engaged between the side chamber wall of the prominent muscle of ligule and container cavity in the formed slit, makes the contact supporter make guiding movement along the ligule muscle of dashing forward; Bridge-shaped contact is installed on the bottom of contact supporter; Spring is opened between chamber, the end wall of container cavity of the bottom that withstands on the contact supporter and shell; Fixed contact is installed in the corresponding container cavity that matches with bridge-shaped contact.
The bottom of said contact supporter is provided with the draw-in groove of along continuous straight runs, and the middle part of bridge-shaped contact is installed on the interference mode in the draw-in groove of bottom of contact supporter.
The middle part of the bottom of said bridge-shaped contact is to having a convex tendon, and the kerve wall place of the draw-in groove of contact supporter is provided with the groove that is used for cooperating said convex tendon, and the convex tendon holding of bridge-shaped contact is in the groove of the draw-in groove of contact supporter.
The bottom of described contact supporter is to having a protuberance, and the wall place, chamber, the end of the container cavity of shell is provided with a depressed part, and the top of said spring is enclosed within the said protuberance, and the bottom of said spring is embedded in the said depressed part.
Be integrally formed with splicing ear on the described fixed contact, the splicing ear of said fixed contact reaches the outside of shell.
A kind of normally closed auxiliary contact module of the present invention, shell are not established and are used for the contact supporter is carried out the groove of guiding movement, and by the position limiting structure of the prominent muscle of the ligule at inner chamber (container cavity) top with side chamber wall formation fore-and-aft direction; The contact supporter is not established window, and is being the draw-in groove that an along continuous straight runs is established in the bottom, and bridge-shaped contact is installed in this draw-in groove, and fixed-site does not produce relative motion; A bigger open slot is established on contact supporter top; Be installed between the prominent muscle of ligule and the side chamber wall of shell when the contact supporter after; The side chamber wall of the prominent muscle of three cell walls of open slot and the ligule of shell, shell forms kinematic pair and position limiting structure; The contact supporter moves up and down, and drives the bridge-shaped contact motion; Single spring promotion contact supporter resets and produces contact pressure; Fixed contact carries integral type quick connection port head, does not need other binding post.
A kind of one pole A.C. contactor based on above-mentioned normally closed auxiliary contact module comprises normally closed auxiliary contact module, pedestal and main contact supporter, and the main contact supporter is contained in the pedestal; Side-walls at pedestal is provided with one along vertical chute, and it is protruding that the main contact supporter is provided with a card, and when the main contact supporter was packed said pedestal into, the protruding cooperation of the card of main contact supporter was also stretched out said chute, and can move up and down along said chute; One side-walls of said pedestal also is provided with the slot that is used for installing normally closed auxiliary contact module; When normally closed auxiliary contact module is loaded on this slot; The card of main contact supporter protrudes out in the open slot of contact supporter of said normally closed auxiliary contact module; And contact with the kerve wall of open slot, also move downward with the contact supporter that when the main contact supporter moves downward, drives normally closed auxiliary contact module.
Be provided with between the kerve wall of the bottom of the prominent muscle of the ligule of described shell and the open slot of contact supporter and can hold the protruding gap of said card.
A kind of one pole A.C. contactor of the present invention is that existing one pole A.C. contactor is a main body, and institute's mounted component is constant in the pedestal of one pole A.C. contactor; The mounting means of main contact supporter is constant, but it is protruding on the main contact supporter, to set up card, simultaneously; Will leave a chute in a side-walls of pedestal, let be installed in that card on the main contact supporter in the pedestal is protruding to be stretched out from chute, and the length of chute is will guarantee that the main contact supporter moves up and down the time; Block protruding can also moving up and down along chute; On pedestal, will be provided with the slot that is used for installing normally closed auxiliary contact module, the position of slot is located at and the chute corresponding section, when normally closed auxiliary contact module is loaded on this slot; Let in the open slot of the protruding contact supporter that then can reach said normally closed auxiliary contact module well of the card of main contact supporter; And contact with the kerve wall of open slot, like this, the contact supporter that just can when the main contact supporter moves downward, drive normally closed auxiliary contact module also moves downward.
The invention has the beneficial effects as follows, owing to adopted shell, contact supporter, bridge-shaped contact, fixed contact and spring to constitute normally closed auxiliary contact module; And form the one pole A.C. contactor based on this normally closed auxiliary contact module, compared with prior art, the present invention can bring following beneficial effect:
The one,, adopt shell, contact supporter, bridge-shaped contact, fixed contact and spring to constitute normally closed auxiliary contact module, with respect to existing normally closed auxiliary contact module, reduced parts, can reduce material cost;
The 2nd,, establish draw-in groove at the contact supporter, bridge-shaped contact is installed in this draw-in groove, make the bridge-shaped contact fixed-site, do not produce relative motion between bridge-shaped contact and the contact supporter; So just can adopt single spring to promote the contact supporter resets and produces contact pressure; Establish the mode of window at the contact supporter with respect to original technology; Reduced the use of parts, and made the smaller volume of normally closed auxiliary contact module, it is also easier to assemble;
The 3rd; Be provided with the prominent muscle of a ligule in the enclosure; The contact supporter establish one can cooperate the prominent muscle of ligule open slot, utilize the wherein cell wall of open slot to be engaged between the side chamber wall of the prominent muscle of ligule and container cavity in the formed slit, make the contact supporter make guiding movement along the ligule muscle of dashing forward; Be compared to original technology and establish groove at shell, this frame mode helps the smaller volume of normally closed auxiliary contact module, and structure becomes simply, and assembling also is more prone to;
The 4th,, on fixed contact, be integrally formed with splicing ear, like this, can reduce the assembly process of splicing ear, can reduce cost of labor;
The 5th; Owing to adopted parts are few, volume is little normally closed auxiliary contact module to be used as parts of one pole A.C. contactor; Through original one pole A.C. contactor base part and main contact supporter are carried out local flow improvement, adapting to and the cooperating of normally closed auxiliary contact module, thereby make that the one pole A.C. contactor can either the National standard regulation; Have the characteristics that volume is little, in light weight, structure is very compact again, and can reduce material cost and cost of human resources.
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain; But a kind of normally closed auxiliary contact module of the present invention and one pole A.C. contactor thereof are not limited to embodiment.
Description of drawings
Fig. 1 is the organigram of normally closed auxiliary contact module of the present invention;
Fig. 2 is the organigram of normally closed auxiliary contact module of the present invention (being the front and back upset with respect to Fig. 1);
Fig. 3 is the organigram of the shell of normally closed auxiliary contact module of the present invention;
Fig. 4 is the organigram of the contact supporter of normally closed auxiliary contact module of the present invention;
Fig. 5 is the organigram of the bridge-shaped contact of normally closed auxiliary contact module of the present invention;
Fig. 6 is the bridge-shaped contact of normally closed auxiliary contact module of the present invention and the assembling sketch map of contact supporter;
Fig. 7 is the cooperation sketch map of bridge-shaped contact, contact supporter and the spring of normally closed auxiliary contact module of the present invention;
Fig. 8 is the organigram of the fixed contact of normally closed auxiliary contact module of the present invention;
Fig. 9 is the organigram of one pole A.C. contactor of the present invention;
Figure 10 is the organigram that the pedestal of one pole A.C. contactor of the present invention matches with the main contact supporter;
Figure 11 is the organigram of the main contact supporter of one pole A.C. contactor of the present invention;
Figure 12 is the organigram of the normally closed auxiliary contact module of one pole A.C. contactor of the present invention.
Embodiment
Embodiment is shown in accompanying drawing;
To shown in Figure 8, a kind of normally closed auxiliary contact module of the present invention comprises shell 1, contact supporter 2, bridge-shaped contact 3, fixed contact 4 and spring 5 referring to Fig. 1; Shell is provided with the container cavity 11 of lateral openings, is provided with the prominent muscle 12 of a ligule by the top of container cavity 11 to extending below; Contact supporter 2 is packed in the container cavity 11 of shell; Contact supporter 2 tops establish one can cooperate the prominent muscle of ligule open slot 21; This open slot 21 is surrounded by three side channel walls and a diapire; A wherein cell wall 211 of open slot 21 is engaged between the side chamber wall 13 of the prominent muscle 12 of ligule and container cavity in the formed slit, makes contact supporter 2 make guiding movement along the ligule muscle 12 of dashing forward; Bridge-shaped contact 3 is installed on the bottom of contact supporter 2; Spring 5 elasticity are opened between chamber, the end wall 14 of container cavity of the bottom that withstands on contact supporter 2 and shell; Fixed contact 4 be installed in the bridge-shaped contact 3 corresponding container cavities that match 11 in because bridge-shaped contact 3 has two moving contacts, therefore, fixed contact 4 has two, is contained in the position with two moving contact corresponding matching of bridge-shaped contact 3 respectively.
The bottom of said contact supporter 2 is provided with the draw-in groove 22 of along continuous straight runs, and the middle part of bridge-shaped contact 3 is installed on the interference mode in the draw-in groove 22 of bottom of contact supporter.
The middle part of the bottom of said bridge-shaped contact 3 is to having a convex tendon 31, and the kerve wall place of the draw-in groove of contact supporter is provided with the groove 221 that is used for cooperating said convex tendon, and convex tendon 31 holdings of bridge-shaped contact are in the groove 221 of the draw-in groove 22 of contact supporter.
The bottom of described contact supporter 2 is to having a protuberance 23, and wall 14 places, chamber, the end of the container cavity of shell are provided with a depressed part 141, and the top of said spring 5 is enclosed within the said protuberance 23, and the bottom of said spring 5 is embedded in the said depressed part 141.
Be integrally formed with splicing ear 41 on the described fixed contact 4, the splicing ear 41 of said fixed contact reaches the outside of shell 1.
During installation; Earlier bridge-shaped contact 3 is installed on the bottom of contact supporter 2, utilize between the groove 221 at kerve wall place of draw-in groove of convex tendon 31 and contact supporter of bottom of bridge-shaped contact 3 match between incompatible realization bridge-shaped contact 3 and the contact supporter 2 the location and fix; The parts of then bridge-shaped contact 3 and contact supporter 2 being formed are packed in the container cavity 11 of shell; When packing into; Be that a wherein cell wall 211 with the open slot 21 of contact supporter 2 is inserted in formed slit between the side chamber wall 13 of the prominent muscle 12 of ligule and container cavity, the medial surface of two other cell wall of open slot 21 then contacts with the ligule muscle 12 of dashing forward; At last, spring 5 elasticity are opened between chamber, the end wall 14 of container cavity of the bottom that withstands on contact supporter 2 and shell, spring 5 is to utilize the depressed part 141 of chamber, end wall 14 of container cavity of protuberance 23 and shell of the bottom of contact supporter 2 to realize locating again; 4 of fixed contacts directly are fixed in the container cavity 11 of shell, can after above-mentioned spring 5 is packed into, fix fixed contact 4, also can in other step before above-mentioned spring 5 is packed into, fix fixed contact 4.
A kind of normally closed auxiliary contact module of the present invention, shell 1 are not established and are used for the contact supporter is carried out the groove of guiding movement, and constitute the position limiting structure of fore-and-aft directions by prominent muscle 12 of the ligule at inner chamber (container cavity) top and side chamber wall 13; Contact supporter 2 is not established window, and is being the draw-in groove 22 that an along continuous straight runs is established in the bottom, and bridge-shaped contact 3 is installed in this draw-in groove 22, and fixed-site does not produce relative motion; A bigger open slot 21 is established on contact supporter 2 tops; Be installed between the prominent muscle 12 of ligule and the side chamber wall 13 of shell when contact supporter 2 after; The side chamber wall of the prominent muscle of three cell walls of open slot and the ligule of shell, shell forms kinematic pair and position limiting structure; Contact supporter 2 moves up and down, and drives bridge-shaped contact 3 motions; Single spring 5 promotion contact supporters 2 reset and produce contact pressure; Fixed contact 4 carries integral type quick connection port head 41, does not need other binding post.
To shown in Figure 12, a kind of one pole A.C. contactor based on above-mentioned normally closed auxiliary contact module of the present invention comprises normally closed auxiliary contact module 100, pedestal 200 and main contact supporter 300 referring to Fig. 9, and main contact supporter 300 is contained in the pedestal 200; Side-walls at pedestal 200 is provided with one along vertical chute 201; Main contact supporter 300 is provided with a card protruding 301; When main contact supporter 300 is packed said pedestal 200 into; The card of main contact supporter 300 protruding 301 cooperates and stretches out said chute 201, and can move up and down along said chute 201; One side-walls of said pedestal 200 also is provided with the slot 202 that is used for installing normally closed auxiliary contact module; When normally closed auxiliary contact module 100 is loaded on this slot 202; The card of main contact supporter protruding 301 reaches in the open slot 21 of contact supporter of said normally closed auxiliary contact module; And contact with the diapire 212 of open slot 21, also move downward with the contact supporter 2 that when main contact supporter 300 moves downward, drives normally closed auxiliary contact module 100.
Be provided with the gap that can hold said card protruding 301 between the diapire 212 of the bottom of the prominent muscle 12 of the ligule of described shell and the open slot 21 of contact supporter 2.
A kind of one pole A.C. contactor of the present invention is that existing one pole A.C. contactor is a main body, and institute's mounted component is constant in the pedestal of one pole A.C. contactor; The mounting means of main contact supporter is constant; But it is protruding 301 on main contact supporter 300, to set up card, simultaneously, leave a chute 201 in a side-walls of pedestal 200; Let the card protruding 301 that is installed on the main contact supporter in the pedestal 200 from chute 201, stretch out; And the length of chute 201 be will guarantee that main contact supporter 300 moves up and down the time, and blocking protruding 301 can also move up and down along chute 201, on pedestal 200, will be provided with the slot 202 that is used for installing normally closed auxiliary contact module; The position of slot 202 is located at and chute 201 corresponding sections; When normally closed auxiliary contact module 100 is loaded on this slot 202, lets in the open slot 21 of the protruding 301 contact supporters that can reach said normally closed auxiliary contact module well of the card of main contact supporter, and contact with the kerve wall 212 of open slot; The contact supporter 2 that like this, just can when main contact supporter 300 moves downward, drive normally closed auxiliary contact module also moves downward.
The foregoing description only is used for further specifying a kind of normally closed auxiliary contact module of the present invention and one pole A.C. contactor thereof; But the present invention is not limited to embodiment; Every foundation technical spirit of the present invention all falls in the protection range of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. a normally closed auxiliary contact module comprises shell, contact supporter, bridge-shaped contact, fixed contact and spring; Shell is provided with the container cavity of lateral openings, it is characterized in that: the top by the container cavity of shell is provided with the prominent muscle of a ligule to extending below; The contact supporter is packed in the container cavity of shell; Contact supporter top establish one can cooperate the prominent muscle of ligule open slot; A wherein cell wall of open slot is engaged between the side chamber wall of the prominent muscle of ligule and container cavity in the formed slit, makes the contact supporter make guiding movement along the ligule muscle of dashing forward; Bridge-shaped contact is installed on the bottom of contact supporter; Spring is opened between chamber, the end wall of container cavity of the bottom that withstands on the contact supporter and shell; Fixed contact is installed in the corresponding container cavity that matches with bridge-shaped contact.
2. normally closed auxiliary contact module according to claim 1 is characterized in that: the bottom of said contact supporter is provided with the draw-in groove of along continuous straight runs, and the middle part of bridge-shaped contact is installed on the interference mode in the draw-in groove of bottom of contact supporter.
3. normally closed auxiliary contact module according to claim 2; It is characterized in that: the middle part of the bottom of said bridge-shaped contact is to having a convex tendon; The kerve wall place of the draw-in groove of contact supporter is provided with the groove that is used for cooperating said convex tendon, and the convex tendon holding of bridge-shaped contact is in the groove of the draw-in groove of contact supporter.
4. normally closed auxiliary contact module according to claim 1; It is characterized in that: the bottom of described contact supporter is to having a protuberance; The wall place, chamber, the end of the container cavity of shell is provided with a depressed part; The top of said spring is enclosed within the said protuberance, and the bottom of said spring is embedded in the said depressed part.
5. normally closed auxiliary contact module according to claim 1 is characterized in that: be integrally formed with splicing ear on the described fixed contact, the splicing ear of said fixed contact reaches the outside of shell.
6. one pole A.C. contactor based on the said normally closed auxiliary contact module of the arbitrary claim of claim 1 to 5; It is characterized in that: comprise the said normally closed auxiliary contact module of the arbitrary claim of claim 1 to 5, pedestal and main contact supporter, the main contact supporter is contained in the pedestal; Side-walls at pedestal is provided with one along vertical chute, and it is protruding that the main contact supporter is provided with a card, and when the main contact supporter was packed said pedestal into, the protruding cooperation of the card of main contact supporter was also stretched out said chute, and can move up and down along said chute; One side-walls of said pedestal also is provided with the slot that is used for installing normally closed auxiliary contact module; When normally closed auxiliary contact module is loaded on this slot; The card of main contact supporter protrudes out in the open slot of contact supporter of said normally closed auxiliary contact module; And contact with the kerve wall of open slot, also move downward with the contact supporter that when the main contact supporter moves downward, drives normally closed auxiliary contact module.
7. one pole A.C. contactor according to claim 6 is characterized in that: be provided with between the kerve wall of the bottom of the prominent muscle of the ligule of described shell and the open slot of contact supporter and can hold the protruding gap of said card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210096616.4A CN102768920B (en) | 2012-04-05 | 2012-04-05 | Normally closed auxiliary contact module and unipolar alternating current contactor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210096616.4A CN102768920B (en) | 2012-04-05 | 2012-04-05 | Normally closed auxiliary contact module and unipolar alternating current contactor with same |
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| Publication Number | Publication Date |
|---|---|
| CN102768920A true CN102768920A (en) | 2012-11-07 |
| CN102768920B CN102768920B (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210096616.4A Active CN102768920B (en) | 2012-04-05 | 2012-04-05 | Normally closed auxiliary contact module and unipolar alternating current contactor with same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107204257A (en) * | 2016-03-18 | 2017-09-26 | 比亚迪股份有限公司 | A kind of relay |
| CN107204259A (en) * | 2016-03-18 | 2017-09-26 | 比亚迪股份有限公司 | A kind of relay |
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| EP0905732A2 (en) * | 1997-09-24 | 1999-03-31 | GE Power Controls Iberica, S.A. | Auxiliary contact device for connection to power factor correction contactors |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107204257A (en) * | 2016-03-18 | 2017-09-26 | 比亚迪股份有限公司 | A kind of relay |
| CN107204259A (en) * | 2016-03-18 | 2017-09-26 | 比亚迪股份有限公司 | A kind of relay |
| CN107204259B (en) * | 2016-03-18 | 2019-01-29 | 比亚迪股份有限公司 | A kind of relay |
| CN107204257B (en) * | 2016-03-18 | 2019-03-29 | 比亚迪股份有限公司 | A kind of relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102768920B (en) | 2014-08-20 |
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