CN218525482U

CN218525482U - Relay load end wiring mechanism

Info

Publication number: CN218525482U
Application number: CN202222704149.0U
Authority: CN
Inventors: 李汉华; 陈合飞
Original assignee: Churod Electronics Wuhu Co ltd
Current assignee: Churod Electronics Wuhu Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-02-24
Anticipated expiration: 2032-10-14

Abstract

The utility model provides a relay load end wiring mechanism, including the relay, the relay includes casing, yoke, armature, reset spring, electro-magnet and contact system, the contact system includes the follower rod and is located the inside terminal box of casing, the follower rod lower extreme slides inside the terminal box, just the movable contact is installed to the follower rod lower extreme, both ends are equipped with stationary contact, two respectively about the movable contact the stationary contact is installed both ends about the terminal box is inside respectively, the movable contact is kept away from follower rod one side and is equipped with the protection piece. This practicality is in the twinkling of an eye that relay arc extinguishing begins, in the twinkling of an eye that movable contact and stationary contact separated promptly, and the arc separation piece can be quick enters into between movable contact and the stationary contact, avoids leading to high-pressure breakdown contact between the arc and makes the contact impaired, influences the life of relay.

Description

Relay load end wiring mechanism

Technical Field

The utility model mainly relates to a technical field of relay, concretely relates to relay load end termination mechanism.

Background

A relay is an electronic control device having a control system (also known as an input loop) and a controlled system (also known as an output loop), typically used in an automatic control circuit, which is actually an "automatic switch" that uses a relatively small current to control a relatively large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. Because the relay has unique electrical and physical characteristics in the control circuit, high insulation resistance in an off state and low on resistance in an on state, any other electronic components cannot be compared with the relay, and the relay has the advantages of high standardization degree, good universality, capability of simplifying circuits and the like, so the relay is widely applied to various electronic equipment in aerospace, military electronic equipment, information industry and national economy.

In the prior art, at the moment when the relay starts to extinguish the arc, the arc is easily elongated due to the power-off delay at the moment when the movable contact and the fixed contact are separated, so that the contact is damaged due to the fact that the contact is broken through by high voltage between arcs, and the service life of the relay is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses technical scheme is too single technical problem to prior art solution, provides to show and is different from prior art's solution, mainly provides a relay load end wiring mechanism for in the twinkling of an eye that proposes relay arc extinguishing in solving above-mentioned background art and begin, the electric arc can be elongated easily because of the outage time delay in the twinkling of an eye of movable contact and stationary contact separation, leads to the high voltage breakdown contact between the arc to make the contact impaired, influences the technical problem of the life of relay.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a load end wiring mechanism of a relay comprises the relay, wherein the relay comprises a shell, a yoke, an armature, a reset spring, an electromagnet and a contact system, the contact system comprises a follower rod and a junction box positioned in the shell, the lower end of the follower rod slides in the junction box, a movable contact is mounted at the lower end of the follower rod, the upper end and the lower end of the movable contact are respectively provided with a fixed contact, the two fixed contacts are respectively mounted at the upper end and the lower end in the junction box, and one side, away from the follower rod, of the movable contact is provided with a protection block; the inside regulation chamber that is equipped with of protection piece, it has the slider to adjust chamber one side slip, be connected with the connecting rod between slider and the movable contact, both ends all are equipped with the spacer of slip in the regulation intracavity portion about the slider, the spacer is installed towards movable contact one side and is separated the arc piece, be connected with the pulling spring between spacer opposite side and the regulation intracavity wall, the regulation intracavity portion center is installed and is equipped with the regulating wheel, be connected with first connecting wire between regulating wheel and the slider, coaxial trailing wheel, two are installed respectively to the regulating wheel both sides the trailing wheel respectively with two spacers between be connected with the second connecting wire.

Preferably, the yoke is "L" nature, yoke one end is located the electro-magnet upper end, and yoke upper end threaded connection has a stop screw.

Preferably, a moving block is slidably mounted at one end of the armature, the follower rod is rotatably mounted on the moving block, a limit ring rod is mounted on the inner side wall of the shell, and the follower rod is connected with the limit ring rod.

Preferably, a coil spring is arranged in the adjusting wheel, when the adjusting wheel rotates, one of the follower wheels winds the corresponding second connecting line, and the other follower wheel lengthens the corresponding second connecting line.

Preferably, when the isolating plate is positioned at the cavity opening of the adjusting cavity, the arc isolating plate and the fixed contact are close to but not in contact with each other.

Compared with the prior art, the beneficial effects of the utility model are that:

when the relay is used, the right end of the armature moves downwards, so that the movable contact is driven by the follower rod to move downwards, the sliding block moves along with the movement of the movable contact, the first connecting wire is driven to move, the regulating wheels rotate along with the regulating wheels, the two follower wheels rotate along with the regulating wheels, one of the follower wheels lengthens the corresponding first connecting wire, the spacer moves towards the follower rod under the pushing of the pulling spring, the service life of the relay is influenced when the arc extinction of the relay starts, namely the movable contact and the fixed contact are separated, the arc isolating sheet can quickly enter the space between the movable contact and the fixed contact, the contact damage caused by high-voltage breakdown between arcs is avoided, and the corresponding second connecting wire is lengthened by the other follower wheel, so that the spacer drives the arc isolating sheet to move towards the inside of the regulating cavity, and the contact between the movable contact and the other fixed contact is avoided being influenced by the arc isolating sheet.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is a schematic diagram of the structure of the relay of the present invention;

fig. 2 is a schematic structural diagram of the contact system of the present invention;

FIG. 3 is a schematic view of the structure of the protection block of the present invention;

fig. 4 is the connection schematic diagram of the adjusting wheel and two follower wheels of the present invention.

In the figure: 1. a relay; 11. a housing; 12. a yoke iron; 13. an armature; 14. a return spring; 15. an electromagnet; 16. a limit screw; 17. a moving block; 18. a limit ring rod; 2. a contact system; 21. a follower rod; 22. a junction box; 23. a movable contact; 24. a stationary contact; 3. a protection block; 30. a follower wheel; 31. an adjustment chamber; 32. a slider; 33. a connecting rod; 34. a first connecting line; 35. a second connecting line; 36. a spacer; 37. an arc-isolating sheet; 38. pulling the spring; 39. an adjustment wheel.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

Please refer to fig. 1 again, the utility model provides a technical solution: the utility model provides a relay load end wiring mechanism, includes relay 1, relay 1 includes casing 11, yoke 12, armature 13, reset spring 14, electro-magnet 15 and contact system 2, yoke 12 is "L" nature, yoke 12 one end is located electro-magnet 15 upper end, just yoke 12 upper end threaded connection has stop screw 16, and rebound when avoiding the contact to close through stop screw 16's restriction avoids taking place short instantaneous adaptability and warp.

Please refer to fig. 1 and 2 again, the contact system 2 includes a follower rod 21 and a junction box 22 located inside the housing 11, the lower end of the follower rod 21 slides inside the junction box 22, a movable contact 23 is installed at the lower end of the follower rod 21, the upper and lower ends of the movable contact 23 are respectively provided with a stationary contact 24, the two stationary contacts 24 are respectively installed at the upper and lower ends inside the junction box 22, one side of the movable contact 23 away from the follower rod 21 is provided with a protection block 3, one end of the armature 13 is slidably installed with a movable block 17, the follower rod 21 is rotatably installed on the movable block 17, a limit ring rod 18 is installed on the inner side wall of the housing 11, and the follower rod 21 is connected with the limit ring rod 18. The limit of the limit ring rod 18 and the moving block 17 ensures that the follower rod 21 only moves up and down, thereby ensuring the up and down movement of the movable contact 23.

Referring to fig. 1-3 again, the protection block 3 is provided with an adjustment chamber 31 therein, a slider 32 is slidably disposed in one side of the adjustment chamber 31, a connecting rod 33 is connected between the slider 32 and the movable contact 23, spacers 36 slidably disposed in the adjustment chamber 31 are disposed at both upper and lower ends of the slider 32, an arc-isolating piece 37 is disposed at one side of the spacer 36 facing the movable contact 23, a pulling spring 38 is connected between the other side of the spacer 36 and an inner wall of the adjustment chamber 31, an adjustment wheel 39 is centrally disposed in the adjustment chamber 31, a first connecting line 34 is connected between the adjustment wheel 39 and the slider 32, coaxial follower wheels 30 are disposed at both sides of the adjustment wheel 39, second connecting lines 35 are connected between the two follower wheels 30 and the two spacers 36, and a coil spring is disposed in the adjustment wheel 39 to ensure that the adjustment wheel 39 can be reversed, when the adjustment wheel 39 is rotated, one of the follower wheels 30 corresponds to the second connecting line 35, the other follower wheel 30 extends to the second connecting line 35, and when the spacer 36 is disposed at an opening of the adjustment chamber 31, the arc-isolating piece 37 and the stationary contact 24 are closely but do not contact with the chamber. Along with the movement of the movable contact 23, the slide block 32 moves to drive the first connecting wire 34 to move, the adjusting wheel 39 rotates under the matching of the first connecting wire 34 and a coil spring arranged in the first connecting wire, the two follow-up wheels 30 rotate along with the rotation of the adjusting wheel 39, one follow-up wheel 30 lengthens the corresponding first connecting wire 34, the spacer 36 moves towards the follow-up rod 21 under the pushing of the pulling spring 38, at the moment when the arc extinction of the relay starts, namely at the moment when the movable contact 23 and the fixed contact 24 are separated, the arc isolating piece 37 can rapidly enter between the movable contact 23 and the fixed contact 24, the contact is prevented from being damaged due to the breakdown of high voltage between arcs, and the service life of the relay is prevented from being influenced,

the utility model discloses a concrete operation as follows:

when the relay 1 is used, the right end of the armature 13 moves downwards, so that the movable contact 23 is driven by the follower rod 21 to move downwards, the sliding block 32 moves along with the movement of the movable contact 23, so as to drive the first connecting wire 34 to move, the adjusting wheel 39 rotates under the matching of the first connecting wire 34 and a coil spring arranged in the first connecting wire, the two follower wheels 30 rotate along with the rotation of the adjusting wheel 39, one of the follower wheels 30 winds the corresponding second connecting wire 35, the other follower wheel 30 lengthens the corresponding second connecting wire 35, therefore, the follower wheel 30 lengthens the first connecting wire 34 at the upper end, the spacer 36 moves towards the follower rod 21 under the pushing of the pulling spring 38, at the moment when the relay starts to extinguish arc, namely, at the moment when the movable contact 23 is separated from the fixed contact 24 at the upper end, the arc-separating sheet 37 at the upper end can rapidly enter between the movable contact 23 and the fixed contact 24 at the upper end, so as to avoid the contact damage caused by high-voltage breakdown between arcs, and influence on the service life of the relay, and at the first connecting wire 34 at the lower end, at the same time, the spacer 36 drives the arc-separating sheet 37 to move towards the inner part of the adjusting cavity, so as to avoid the contact 23 and the lower end of the fixed contact 24.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. A relay load termination wiring mechanism comprises a relay (1), and is characterized in that: the relay (1) comprises a shell (11), a yoke (12), an armature (13), a reset spring (14), an electromagnet (15) and a contact system (2), wherein the contact system (2) comprises a follower rod (21) and a junction box (22) positioned in the shell (11), the lower end of the follower rod (21) slides in the junction box (22), a movable contact (23) is arranged at the lower end of the follower rod (21), the upper end and the lower end of the movable contact (23) are respectively provided with a fixed contact (24), the two fixed contacts (24) are respectively arranged at the upper end and the lower end in the junction box (22), and one side, far away from the follower rod (21), of the movable contact (23) is provided with a protection block (3);

the protection block (3) is internally provided with an adjusting cavity (31), one side of the adjusting cavity (31) is provided with a sliding block (32) in a sliding manner, a connecting rod (33) is connected between the sliding block (32) and the movable contact (23), the upper end and the lower end of the sliding block (32) are both provided with spacers (36) sliding in the adjusting cavity (31), the spacers (36) face one side of the movable contact (23) and are provided with arc isolating pieces (37), pulling springs (38) are connected between the other side of the spacers (36) and the inner wall of the adjusting cavity (31), an adjusting wheel (39) is installed at the center in the adjusting cavity (31), a first connecting wire (34) is connected between the adjusting wheel (39) and the sliding block (32), coaxial follow wheels (30) are respectively installed on two sides of the adjusting wheel (39), and second connecting wires (35) are respectively connected between the two spacers (30) and the two spacers (36).

2. A relay load termination wiring mechanism according to claim 1, wherein: yoke (12) are "L" nature, yoke (12) one end is located electro-magnet (15) upper end, just yoke (12) upper end threaded connection has stop screw (16).

3. A relay load termination wiring mechanism according to claim 1, wherein: a moving block (17) is installed at one end of the armature (13) in a sliding mode, the follower rod (21) is installed on the moving block (17) in a rotating mode, a limit ring rod (18) is installed on the inner side wall of the shell (11), and the follower rod (21) is connected with the limit ring rod (18).

4. A relay load termination wiring mechanism according to claim 1, wherein: the adjusting wheels (39) are internally provided with coil springs, when the adjusting wheels (39) rotate, one of the follow-up wheels (30) winds the corresponding second connecting line (35), and the other follow-up wheel (30) lengthens the corresponding second connecting line (35).

5. The relay load termination mechanism of claim 1, wherein: when the spacer (36) is positioned at the opening of the adjusting cavity (31), the arc-isolating piece (37) is close to but not in contact with the static contact (24).