CN108807083B

CN108807083B - Relay device

Info

Publication number: CN108807083B
Application number: CN201810859315.XA
Authority: CN
Inventors: 索依娜; 杨迎新; 费冬妹; 安春燕; 梅桂静
Original assignee: State Grid Corp of China SGCC; Langfang Power Supply Co of State Grid Jibei Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Langfang Power Supply Co of State Grid Jibei Electric Power Co Ltd
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2024-03-01
Anticipated expiration: 2038-08-01
Also published as: CN108807083A

Abstract

The utility model discloses a relay device which comprises a shell, a normally closed terminal, a normally open terminal, a coil terminal, an electromagnetic coil, an electromagnet and a first armature, wherein the lower part of the first armature is selectively contacted with the electromagnet, a second bracket is vertically connected above the first armature, a movable contact is connected to the outer side of the second bracket, the movable contact is positioned between the normally closed terminal and the normally open terminal, a first inserted link is movably inserted to the outer side of the shell, a limiting ring is connected to the first inserted link, a second spring is connected to the inner wall of the limiting ring and the shell, a blind hole is formed below the inner side of the first inserted link, a second inserted link is movably inserted into the blind hole through a third spring, a first wedge block is connected to the lower part of the second inserted link, a second wedge block and a third bracket are connected to the inner bottom surface of the shell, a second armature is movably hinged to the upper part of the third bracket through a hinge wheel, and a deflector rod is vertically connected to the inner side of the second armature. The utility model can improve the defects of the prior art and has the function of power-on reset protection.

Description

Relay device

Technical Field

The utility model relates to the technical field of relays, in particular to a relay device.

Background

A relay is an electronically controlled device having a control system and a controlled system, typically used in an automatic control circuit, which is actually an "automatic switch" that uses a small current to control a large current. Therefore, the electric power switch plays roles of automatic regulation, safety protection, circuit switching and the like in a circuit, is a power switch for switching off or switching on an electric loop by responding to an electric signal, is widely applied to vehicles, various mechanical equipment and electronic products, and is a necessary and important component in a power system. Chinese patent No. CN 206564226U discloses a relay with a manual switch. The relay with the structure is additionally provided with the manual button, so that workers can temporarily control the on-off of electricity, but in actual use, the workers often neglect to work, forget to reset after pressing the button, and damage part of components and parts is caused, so that the application range of the relay is limited.

Disclosure of Invention

The utility model aims to provide a relay device which can solve the defects in the prior art and has the function of power-on reset protection.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.

The utility model provides a relay device, which comprises a housin, normally closed terminal, normally open terminal and coil terminal, the internally connected of casing has solenoid, solenoid's inboard is connected with the electro-magnet, the inboard of casing still articulates through first support activity has first armature, the below and the electro-magnet selective contact of first armature, the top of first armature is connected with the second support perpendicularly, the outside of second support is connected with movable contact, movable contact is located between normally closed terminal and the normally open terminal, the outside of casing still activity is inserted and is equipped with first inserted bar, be connected with the spacing ring on the first inserted bar, the inner wall connection of spacing ring and casing has the second spring, the blind hole has been seted up to the inboard below of first inserted bar, the inside of blind hole is inserted through the third spring activity and is equipped with the second inserted bar, the below of second inserted bar is connected with first wedge, the inside bottom surface of casing is connected with second wedge and third support, the top of third support is articulated through the hinge wheel has the second armature, the inboard of second armature is connected with the driving lever perpendicularly.

Preferably, the inside of casing still is connected with spacing frame, and the second support is located spacing frame, is connected with first spring between spacing frame and the second support.

Preferably, the outside of the electromagnetic coil is electrically connected to a coil terminal.

Preferably, a button is further connected to the outer side of the first plunger.

Preferably, the second armature is in selective contact with the electromagnet, the deflector rod is in selective contact with the first wedge block, the first insert rod is in selective contact with the first armature, and the second wedge block is in selective contact with the first wedge block.

The beneficial effects brought by adopting the technical scheme are as follows: the relay is an intermediate relay, the electromagnetic coil can make the electromagnet have magnetism after being electrified, so that the first armature movably hinged on the first bracket can be attracted, the first armature is contacted with the electromagnet, the first bracket further drives the movable contact to move, the contact with the normally open terminal is switched to be contacted with the normally closed terminal, the switching process is finished, the first plunger rod is further pressed inwards, the first plunger rod is moved inwards to press the first armature, the process that the movable contact is switched from being contacted with the normally open terminal to being contacted with the normally closed terminal is achieved, when the first plunger rod is moved to the innermost side, the second plunger rod movably inserted into the blind hole through the third spring is used, the first wedge block at the lower end of the second plunger rod is contacted with the two inclined planes of the first wedge block and the second wedge block mutually, and the inward side of the first plunger rod is moved inwards to generate mutual pressing, therefore, the second inserted link is partially retracted into the blind hole, when the first wedge block passes through the second wedge block, the straight edges of the two wedge blocks are mutually contacted, a blocking effect is generated, the effect can limit the position of the first inserted link and prevent the first inserted link from retracting, thus achieving the purpose of manually controlling the relay, furthermore, after the first inserted link is manually pressed down, if the electromagnetic coil is electrified at the moment, the electromagnetic coil can enable the electromagnetic coil to have magnetism, the electromagnetic coil can absorb the second armature and enable the second armature to be contacted with the electromagnetic coil, and because the second armature is fixedly connected with the deflector rod, the rotation of the second armature can synchronously drive the deflector rod to rotate, the deflector rod can dial the first wedge block upwards, the second inserted link is partially retracted into the blind hole, thereby enabling the first wedge block and the second wedge block to lose interference effect, and the first inserted link is retracted under the action of the second spring, the relay with the structure has the advantages that on the basis of realizing manual control on-off, a power-on reset protection function is added, so that staff is prevented from negligence, and after the relay is manually controlled, accidents of damage to partial electric elements caused by forgetting to reset are avoided. The limiting frame inside the shell can play a certain position guiding role on the second support, and the first spring can ensure that the movable contact can be mutually contacted with the normally open terminal under the condition of no power on. The coil terminals are used to power the electromagnetic coil. The button on the outer side of the first inserted link is convenient for an operator to press.

Drawings

Fig. 1 is a view showing a structure of a contact structure of a movable contact and a normally open terminal in an embodiment of the present utility model.

Fig. 2 is a structural view showing a contact between a movable contact and a normally closed terminal in an embodiment of the present utility model.

Fig. 3 is a block diagram of a first plunger position in one embodiment of the utility model.

In the figure: 1. a housing; 2. a normally closed terminal; 3. a normally open terminal; 4. coil terminals; 5. an electromagnetic coil; 6. an electromagnet; 7. a first bracket; 8. a first armature; 9. a second bracket; 10. a limit frame; 11. a first spring; 12. a movable contact; 13. a button; 14. a first plunger; 15. a second spring; 16. a limiting ring; 17. a blind hole; 18. a third spring; 19. a second plunger; 20. a first wedge block; 21. a second wedge block; 22. a third bracket; 23. a deflector rod; 24. a hinge wheel; 25. a second armature; 26. a collar; 27. a bottom plate; 28. and a fourth spring.

Detailed Description

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, and the specific connection modes of the parts adopt conventional means such as mature bolts, rivets, welding, pasting and the like in the prior art, and the detailed description is omitted.

Referring to fig. 1-3, a specific embodiment of the utility model comprises a casing 1, a normally closed terminal 2, a normally open terminal 3 and a coil terminal 4, wherein an electromagnetic coil 5 is connected inside the casing 1, an electromagnet 6 is connected inside the electromagnetic coil 5, a first armature 8 is movably hinged inside the casing 1 through a first bracket 7, a second bracket 9 is vertically connected above the first armature 8 by selectively contacting the electromagnet 6 below the first armature 8, a movable contact 12 is connected outside the second bracket 9, the movable contact 12 is positioned between the normally closed terminal 2 and the normally open terminal 3, a first inserted rod 14 is movably inserted outside the casing 1, a limiting ring 16 is connected to the first inserted rod 14, the limiting ring 16 is connected with the inner wall of the casing 1, a second spring 15 is connected to the inner side of the first inserted rod 14, a blind hole 17 is formed below the inner side of the blind hole 17, a second inserted rod 19 is movably inserted inside the blind hole through a third spring 18, a first wedge block 20 is connected below the second inserted rod 19, a second wedge block 21 and a third wedge block 22 are vertically connected to the inner bottom surface of the casing 1, a second wedge block 22 is vertically hinged inside a third bracket 22, and a second armature 25 is movably hinged inside the third bracket 22 by a second inserted armature 25. The relay is an intermediate relay, the electromagnetic coil 5 can make the electromagnet 6 have magnetism after being electrified, so that the first armature 8 movably hinged on the first bracket 7 can be attracted, the first armature 8 is contacted with the electromagnet 6, the first bracket 7 further drives the movable contact 12 to move, the contact with the normally open terminal 3 is switched to be contacted with the normally closed terminal 2, the switching process is finished, further, the utility model can further press the first plunger 14 inwards to laterally squeeze the first armature 8, the process that the movable contact 12 is switched from being contacted with the normally open terminal 3 to being contacted with the normally closed terminal 2 is achieved, when the first plunger 14 moves to the innermost side, the second plunger 19 movably inserted in the blind hole 17 through the third spring 18 is adopted, the first wedge block 20 at the lower end of the second plunger contacts with the two inclined surfaces of the first wedge block 20 and the second wedge block 21 mutually contacted with the second wedge block 2 below, as the inward movement of the first plunger 14 causes mutual compression, so that the second plunger 19 is partially retracted into the blind hole 17, when the first wedge 20 passes through the second wedge 21, the straight edges of the two wedges will contact each other, which will produce a blocking effect, which can limit the position of the first plunger 14 and prevent it from retracting, thereby achieving the purpose of manual relay control, and further, after manually depressing the first plunger 14, if the electromagnetic coil 5 is energized to make the electromagnet 6 have magnetism, the electromagnet 6 can simultaneously absorb the second armature 25 and make the second armature 25 contact with the electromagnet 6, and because the second armature 25 is fixedly connected with the deflector rod 23, the rotation of the second armature 25 will also simultaneously drive the rotation of the deflector rod 23, which can make the deflector rod 23 dial the first wedge 20 upward, the second inserted link 19 is partially retracted into the blind hole 17, so that the first wedge block 20 and the second wedge block 21 lose interference effect, the first inserted link 14 is retracted under the action of the second spring 15, and the relay with the structure has the function of power-on reset protection on the basis of realizing manual control on-off, so that staff negligence is prevented, and after the relay is manually controlled, accidents of partial electric element damage caused by forgetting to reset are forgotten. The inside of casing 1 still is connected with spacing frame 10, and second support 9 is located spacing frame 10, is connected with first spring 11 between spacing frame 10 and the second support 9. The limiting frame 10 in the shell 1 can play a certain position guiding role on the second bracket 9, and the first spring 11 can ensure that the movable contact 12 can be mutually contacted with the normally open terminal 3 under the condition of no power. The outside of the electromagnetic coil 5 is electrically connected to the coil terminal 4. The coil terminals 4 are used to supply power to the electromagnetic coil 5. The outer side of the first inserted link 14 is also connected with a button 13. The button 13 outside the first plunger 14 is convenient for the operator to press. The second armature 25 is in selective contact with the electromagnet 6, the deflector rod 23 is in selective contact with the first wedge block 20, the first plunger 14 is in selective contact with the first armature 8, and the second wedge block 21 is in selective contact with the first wedge block 20.

In addition, in order to further improve the practical characteristics of the present utility model, the second wedge 21 is in a columnar structure, the bottom plate 27 is fixedly connected to the outer side of the second wedge 21, the bottom plate 27 is located at the outer side of the housing 1, the collar 26 is connected to the lower side of the housing 1, the second wedge 21 is movably inserted into the collar 26, and a fourth spring 28 is connected between the bottom plate 27 and the collar 26, through the above structure, the second wedge 21 is movably inserted into the collar 26 below the housing 1, and the position of the second wedge 21 is primarily limited by the fourth spring 28, and the structure makes it easier for the first wedge 20 to pass through the second wedge 21 when the second wedge 21 and the first wedge 20 are mutually pressed, and, under the condition that the electromagnetic coil 5 is not electrified, the second wedge 21 can also be driven to move downwards by pulling the bottom plate 27, so that the second wedge 21 and the first wedge 20 are separated, thereby achieving the purpose of the first plunger 14.

The electromagnetic coil, the armature and other devices used in the present utility model are fully disclosed in the patent literature cited in the background art, and the specific structure thereof is not described in detail herein.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a relay device, includes casing (1), normally closed terminal (2), normally open terminal (3) and coil terminal (4), its characterized in that: the inside of the shell (1) is connected with an electromagnetic coil (5), the inside of the electromagnetic coil (5) is connected with an electromagnet (6), the inside of the shell (1) is also movably hinged with a first armature (8) through a first bracket (7), the lower part of the first armature (8) is selectively contacted with the electromagnet (6), the upper part of the first armature (8) is vertically connected with a second bracket (9), the outside of the second bracket (9) is connected with a movable contact (12), the movable contact (12) is positioned between a normally closed terminal (2) and a normally open terminal (3), the outside of the shell (1) is movably inserted with a first inserted rod (14), the first inserted rod (14) is connected with a limiting ring (16), the limiting ring (16) is connected with the inner wall of the shell (1) through a second spring (15), a blind hole (17) is formed in the lower part of the inside of the first inserted rod (14), the blind hole (17) is movably inserted with a second inserted rod (19) through a third spring (18), the lower part of the second inserted rod (19) is connected with a first wedge-shaped block (20), the inner bottom surface (1) is connected with a third wedge-shaped wheel (22) through a third hinged with a third bracket (22), a deflector rod (23) is vertically connected to the inner side of the second armature (25);

the inside of the shell (1) is also connected with a limiting frame (10), the second bracket (9) is positioned in the limiting frame (10), and a first spring (11) is connected between the limiting frame (10) and the second bracket (9);

the second armature (25) is in selective contact with the electromagnet (6), the deflector rod (23) is in selective contact with the first wedge block (20), the first inserted rod (14) is in selective contact with the first armature (8), and the second wedge block (21) is in selective contact with the first wedge block (20);

after the electromagnetic coil (5) is electrified, magnetism is generated to enable the first armature (8) to be in contact with the electromagnet (6), the first bracket (7) drives the movable contact (12) to move, the contact with the normally open terminal (3) is switched to be in contact with the normally closed terminal (2), the switching process is completed, the first inserted rod (14) is pressed inwards, the first inserted rod (14) is moved inwards to press the first armature (8) until the movable contact (12) is switched to be in contact with the normally open terminal (3), after the first inserted rod (14) moves to the innermost side, the second inserted rod (19) is movably inserted into the blind hole (17) through the third spring (18), the first wedge block (20) at the lower end of the second inserted rod is in contact with the second wedge block (21) below, the two inclined surfaces of the first wedge block (20) and the second wedge block (21) are mutually contacted, the second inserted rod (19) is partially retracted into the blind hole (17), and the first inserted rod (14) is prevented from being retracted after the first wedge block (20) passes through the second wedge block (21); after the first inserted link (14) is manually pressed down, when the electromagnetic coil (5) is electrified to enable the electromagnet (6) to have magnetism, the electromagnet (6) can absorb the second armature (25) simultaneously and enable the second armature (25) to be in contact with the electromagnet (6), the second armature (25) is fixedly connected with the deflector rod (23), the deflector rod (23) is synchronously driven to rotate by rotation of the second armature (25), the deflector rod (23) drives the first wedge block (20) upwards by the action, the second inserted link (19) is partially retracted into the blind hole (17), so that the interference effect of the first wedge block (20) and the second wedge block (21) is lost, and the first inserted link (14) is retracted under the action of the second spring (15);

the second wedge block (21) is of a columnar structure, a bottom plate (27) is fixedly connected to the outer side of the second wedge block (21), the bottom plate (27) is located on the outer side of the shell (1), a lantern ring (26) is connected to the lower portion of the shell (1), the second wedge block (21) is movably inserted into the lantern ring (26), and a fourth spring (28) is connected between the bottom plate (27) and the lantern ring (26).

2. The relay device according to claim 1, wherein: the outside of the electromagnetic coil (5) is electrically connected with a coil terminal (4).

3. The relay device according to claim 1, wherein: the outer side of the first inserted link (14) is also connected with a button (13).