CN206148369U

CN206148369U - Auxiliary contact group

Info

Publication number: CN206148369U
Application number: CN201621182374.0U
Authority: CN
Inventors: 张奇建; 张华兵
Original assignee: ZHEJIANG ZHAOZHENG ELECTROMECHANICAL CO Ltd
Current assignee: ZHEJIANG ZHAOZHENG ELECTROMECHANICAL CO Ltd
Priority date: 2016-11-03
Filing date: 2016-11-03
Publication date: 2017-05-03
Anticipated expiration: 2026-11-03

Abstract

The utility model discloses an auxiliary contact group, including casing, support and circuit board, the circuit board sets up in the casing, be provided with at least a pair of binding post on the circuit board, support and casing sliding fit, it is every to connecting through the tongue tube between the binding post, being equipped with on the support and being used for when the support slides that the control tongue tube leads to, disconnected permanent magnet, its simple structure is equitable, can effectively accept weak electric signal.

Description

Auxiliary contact group

Technical field

This utility model is related to a kind of A.C. contactor switch module, especially a kind of auxiliary contact of A.C. contactor Group.

Background technology

A.C. contactor with fast shut-off ac circuit, and can frequently connect the circuit dress of high current control Put, A.C. contactor is widely used makees unit etc. in control motor, shop equipment, electric heater, machine-tool and various shops Electrical load, and A.C. contactor is also with the effect of low-voltage release guard, is the critical elements in automation control system, And auxiliary contact group is the control circuit for break-make small current, self-locking, the interlocking of catalyst, the state transmission of catalyst are realized Etc. function, and control other needs circuits simultaneously.But the auxiliary contact group of conventional AC catalyst generally adopts contact The way of contact of formula, the resistance that contact is applied between forceful electric power signal identification, but contact contact is larger, and with dynamic number of times is done Increase and the time passage, contact can aoxidize and may be stained with dust, and contact resistance can become big many, for 5V's or 5mA Weak electric signal identification ability is weaker, is not suitable with weak current equipment facility, however as social development progress, as the improvement of equipment changes Enter, industrial computer, PLC are used in a large number, weak electric signal also apply more extensively, the seizure to weak electric signal also becomes with recognizing It is even more important.

Utility model content

For the deficiencies in the prior art, this utility model provides a kind of auxiliary contact group, and its is simple and reasonable, can be effective Receive weak electric signal.

This utility model provides a kind of auxiliary contact group, including housing, support and wiring board, and the wiring board arranges housing It is interior, at least one pair of binding post is provided with the wiring board, the support is slidably matched with housing, between every pair of wire connection terminals Connected by tongue tube, the support is provided with the permanent magnet for controlling tongue tube switching in bracket slide.

So arrange beneficial effect be：Using such scheme, it is attached using tongue tube pair of wire connection terminals, because dry Reed pipe is a kind of special key of magnetosensitive, and circuit is connected when magnetic is sensed, is disconnected without during magnetic, while the auxiliary contact group Be designed with the permanent magnet that can be slided, when permanent magnet with bracket slide near tongue tube when, reed switch conduction circuit, away from when it is dry The functions such as reed pipe disconnecting circuit, the tentaculum state that achieves a butt joint transmission, the contact side of the cooperation of tongue tube and permanent magnet compared with contact type Formula have less resistance, there is more preferable susceptiveness to weak electric signal, tongue tube is Vacuum Package, will not be aoxidized, humidity, The interference of dust so that A.C. contactor has bigger operation strategies, because tongue tube is vacuum tube, can be used for environment ratio The larger occasion of more severe occasion, such as dust, dust storm, can be used as dust-proof assisted group and uses, while binding post and circuit Between plate, using being welded to connect, the resistance in circuit is effectively reduced, it is relatively reliable, it is easy to connect small and weak signal.

This utility model is further arranged to be provided with two pair of wire connection terminals, one pair of which binding post on the wiring board Between be connected with the first tongue tube, be connected with the second tongue tube between another pair of wire connection terminals, the support be provided with for Control during bracket slide the first tongue tube switching the first permanent magnet and for control in bracket slide the second tongue tube it is logical, The second disconnected permanent magnet.

So arrange beneficial effect be：Using such scheme, two tongue tubes of design further realize auxiliary contact group Achieve a butt joint the function such as state transmission of tentaculum, realizes that the one normally opened of auxiliary contact group is normally closed or two normally opened.

This utility model is further arranged to first permanent magnet and the second permanent magnet and sets along bracket slide direction interval Put, first permanent magnet and the second permanent magnet are respectively arranged at the both sides of wiring board.

So arrange beneficial effect be：Using such scheme, permanent magnet is arranged into assist side two ends, realize first forever Magnet near the first tongue tube when, the second permanent magnet realizes the first reed switch conduction away from the second tongue tube, and the second tongue tube breaks Road, when the second permanent magnet is near the second tongue tube, the first permanent magnet realizes the second reed switch conduction away from the first tongue tube, First tongue tube open circuit, it is possible to achieve the auxiliary contact group one normally opened is normally closed.

This utility model is further arranged to first permanent magnet and the second permanent magnet is arranged at the same side of wiring board.

So arrange beneficial effect be：Using such scheme, permanent magnet is arranged into assist side the same side, realize first With the second permanent magnet simultaneously away from or near first, second tongue tube so that the first tongue tube and the second tongue tube are located simultaneously In being switched on or off state, it is possible to achieve the auxiliary contact group two is normally opened.

This utility model is further arranged to be provided with through hole on the wiring board, and the support is slidably located in logical In hole.

So arrange beneficial effect be：Using such scheme, through hole is designed in the circuit board, at the same support be located in it is logical In hole, the volume of equipment is effectively saved, realize the reasonable utilization in space, first support is put on wiring board during assembling, further Rise and be encased on shell, be easy to assembling.And two tongue tubes are separately positioned on support both sides, centre is hindered by support Every permanent magnet is separately positioned on support both sides, and two permanent magnets are assembled using anti-magnetic states, that is, two permanent magnet poles can not when assembling In the same direction, the useful red polarity done of painting is indicated on permanent magnet, and adjacent tongue tube is interfered such that it is able to eliminate two permanent magnets, Effectively reduce and be even a cancellation impact and second permanent magnet of first permanent magnet to the second tongue tube to the first tongue tube Affect, improve the work efficiency of equipment and the reliability of work.

This utility model is further arranged on the support be provided with the storage tank for housing permanent magnet.

So arrange beneficial effect be：Using such scheme, it is easy to the location and installation of permanent magnet, contributes to permanent magnet Position is fixed, and is not susceptible to release, it is ensured that the reliability of auxiliary switch group work.

This utility model is further arranged on the support be provided with least 3 storage tanks for housing permanent magnet, At least one storage tank is arranged at wiring board side, and remaining storage tank arranges assist side opposite side.

So arrange beneficial effect be：Using such scheme, simplest scheme is to arrange three on support to house Groove, wiring board side two, opposite side is one, two permanent magnet assist side sides is arranged into one or is arranged on same Side, need to only adjust the installation site of permanent magnet, it is possible to realize two normally opened or one normally opened one normally closed, raisings of auxiliary contact group The scope of application, while when designing three storage tanks so that support is easier to wear in assist side, by adjustment angle Through hole in insertion wiring board, is easily installed production, naturally it is also possible to all arrange two or more storage tanks at two ends, and Permanent magnet is installed in storage tank, multipoint adjustment selects most suitable most rational position to carry out break-make control to tongue tube.

This utility model is further arranged to the permanent magnet and constitutes grafting cooperation with storage tank, opens up on the permanent magnet Limited location groove, in the accommodating groove sidewall projection being fastened in stopper slot is provided with.

So arrange beneficial effect be：Using such scheme, it is ensured that the installation of permanent magnet is stablized, and is difficult in the course of work In get loose, so as to ensure the open and close controlling to tongue tube, it is ensured that A.C. contactor it is stable, extend the auxiliary contact The service life of group.

This utility model is further arranged to the rack side wall and is provided with slipping block, and in the inner walls cunning is provided with Track is moved, the slipping block constitutes sliding and coordinates with sliding rail.

So arrange beneficial effect be：Using such scheme, slipping block and sliding rail are set, it is ensured that the cunning of support Direction is moved, is not in deviation, it is ensured that the control that permanent magnet is opened and closed to tongue tube, improve the work efficiency of equipment.

This utility model is further arranged to be provided with wire frame on the wiring board, and the binding post is arranged on wiring Inframe, the binding post is connected by binding post with contact chip, the wire frame also include tighten screw, on the housing in Wire frame correspondence position is provided with connection jaws and screw-driving mouth.

So arrange beneficial effect be：Using such scheme, binding post is provided with contact pin, and by contact pin wiring is run through Circle body so that binding post can be welded in the circuit board.So that external circuit is tied with auxiliary contact group binding post Close more tight, be less likely to cause circuit loosening by tightening screw, it is ensured that the stability of operation.

Description of the drawings

Fig. 1 is the overall structure diagram of this utility model embodiment；

Fig. 2 is the explosive view 1 of this utility model embodiment；

Fig. 3 is the explosive view 2 of this utility model embodiment；

Fig. 4 is the structural representation of this utility model embodiment medium-height trestle；

Fig. 5 is the structural representation of upper shell in this utility model embodiment；

Fig. 6 is the structural representation of wiring board in this utility model embodiment；

Fig. 7 is the structural representation of lower house in this utility model embodiment；

Fig. 8 is the structural representation of the first permanent magnet in this utility model embodiment.

Specific embodiment

Can be seen that by Fig. 1 to Fig. 7 the utility model discloses a kind of auxiliary contact group, including housing 1, support 2 and line Road plate 3, housing 1 is overall to be rectangle, including upper shell 11 and lower house 12, and the wiring board 3 is arranged in housing 1, the line Two wire frames 34 are symmetrically arranged with road plate 3, in each wire frame 34 two binding posts, the wire frame are respectively arranged with Two binding posts are connected respectively by the first tongue tube 321 and the second tongue tube 322 with the internal wiring terminal of corresponding wire frame 34 in 34 Connect, be additionally provided with the wire frame 34 and tighten screw 341, be provided with the correspondence position of wire frame 34 on the lower house 12 and connect Line mouth 122 and screw-driving mouth 121, do not easily cause circuit loosening, it is ensured that the stability of integral device operation by tightening screw, It is additionally provided with the lower house 12 for the word board 123 of sign, word board 123 is plugged on lower house 12, can be used for writing Or expression is indicated, and while word board 123 is also convenient for changing, through hole 31 being provided with the wiring board 3, the support 2 is slidable It is located in through hole 31 and is slidably matched with housing 1, the side wall of the support 2 is provided with slipping block 24, the inwall of the upper shell 11 On be provided with sliding rail 111, the slipping block 24 coordinates with the sliding of sliding rail 111, and the sliding side of support 2 has been effectively ensured To being difficult sideslip, it is ensured that the control to connecting and disconnecting of the circuit, the work efficiency of equipment is improved, three appearances are additionally provided with the support 2 Groove is put, respectively the first storage tank 21, the second storage tank 23 and the 3rd storage tank 22, first storage tank 21 and the 3rd is housed Groove 22 arranges the side of assist side 3 and is arranged on one end of support 2, and the second storage tank 23 arranges the opposite side of assist side 3 and sets Put in the other end in support 2, first storage tank 21 and be provided with for controlling the first tongue tube 321 when support 2 slides It is provided with for controlling the second tongue tube when support 2 slides in first permanent magnet 25 of switching, second storage tank 23 Second permanent magnet 26 of 322 switchings, need to only adjust the installation site of the first permanent magnet 25 or the second permanent magnet 26, it is possible to The two normally opened or one normally opened one normally closed of auxiliary contact group is realized, the scope of application of integral device is improve, while so design During storage tank so that support 2 is easier to wear in assist side through hole 31, by rotational angle support 2 can be made to insert circuit In plate through hole 31, production is easily installed.

The first permanent magnet 25 described in the present embodiment is can be seen that by Fig. 4 and Fig. 8 constitute grafting with the first storage tank 21 and match somebody with somebody Close, stopper slot 251 is offered on first permanent magnet 25, be provided with the side wall of first storage tank 21 and be fastened on stopper slot Projection 211 in 251, the second permanent magnet 26 and the second storage tank 23 adopt identical fixed structure, so arrange and ensure first The installation of the permanent magnet 26 of permanent magnet 25 and second is stablized, and is difficult to get loose in the course of the work, so as to ensure to the first dry spring The open and close controlling of the tongue tube 322 of pipe 321 or second, it is ensured that integral device it is stable, extend the use of the auxiliary contact group Life-span.

The above embodiments are only preferred embodiment of the present utility model, it is impossible to right of the present utility model is limited with this Scope, therefore, according to the equivalent variations that this utility model claim is made, such as using similar technique, similar structures Equivalent product still belongs to the scope that this utility model is covered.

Claims

1. a kind of auxiliary contact group, including housing, support and wiring board, the wiring board is arranged in housing, on the wiring board It is provided with least one pair of binding post, it is characterised in that：The support is slidably matched with housing, passes through between every pair of wire connection terminals Tongue tube connects, and the support is provided with the permanent magnet for controlling tongue tube switching in bracket slide.

2. auxiliary contact group according to claim 1, it is characterised in that：Two docking line ends are provided with the wiring board Son, is connected with the first tongue tube between one pair of which binding post, the second tongue tube, institute are connected between another pair of wire connection terminals State support and be provided with the first permanent magnet for controlling the first tongue tube switching in bracket slide and in bracket slide Control the second permanent magnet of the second tongue tube switching.

3. auxiliary contact group according to claim 2, it is characterised in that：First permanent magnet and the second permanent magnet edge Frame glide direction interval setting, first permanent magnet and the second permanent magnet are respectively arranged at the both sides of wiring board.

4. auxiliary contact group according to claim 2, it is characterised in that：First permanent magnet and the second permanent magnet are arranged In the same side of wiring board.

5. auxiliary contact group according to claim 2, it is characterised in that：It is provided with through hole on the wiring board, described Frame is slidably located in through hole.

6. auxiliary contact group according to claim 1, it is characterised in that：It is provided with the support for housing permanent magnet Storage tank.

7. auxiliary contact group according to claim 2, it is characterised in that：At least 3 are provided with the support for holding The storage tank of permanent magnet is put, at least one storage tank is arranged at wiring board side, remaining storage tank arranges assist side opposite side.

8. the auxiliary contact group according to claim 6 or 7, it is characterised in that：The permanent magnet constitutes grafting with storage tank Coordinate, stopper slot is offered on the permanent magnet, in the accommodating groove sidewall projection being fastened in stopper slot is provided with.

9. the auxiliary contact group according to claim 6 or 7, it is characterised in that：The rack side wall is provided with slipping block, institute State and be provided with inner walls sliding rail, the slipping block constitutes sliding and coordinates with sliding rail.

10. auxiliary contact group according to claim 1, it is characterised in that：Wire frame is provided with the wiring board, it is described Binding post is arranged on wiring inframe, and the binding post is connected by binding post with contact chip, and the wire frame also includes twisting Tight screw, connection jaws and screw-driving mouth are provided with the housing in wire frame correspondence position.