CN212010857U

CN212010857U - Relay overheat protection device

Info

Publication number: CN212010857U
Application number: CN202021145281.7U
Authority: CN
Inventors: 黄雪峰
Original assignee: Haifeng Electric Jiangsu Co ltd
Current assignee: Haifeng Electric Jiangsu Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2020-11-24
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a relay overheating protection device, which comprises a relay box and a protective box, wherein the end face of the relay box is provided with a first vent hole, the inner walls of the two sides of the protective box are fixedly connected with a sliding plate, the upper end face of the sliding plate is provided with a sliding groove, the inside of the sliding groove is slidably connected with a supporting plate, the middle part of the supporting plate is fixedly connected with a fixed block, the lower end of the fixed block is fixedly connected with a second contact rod, the inside lower end of the protective box is fixedly connected with a first contact rod, one side of the lower end of the sliding plate is fixedly connected with a sleeve, the inside of the sleeve is slidably connected with a push plate, the upper end of the push plate is fixedly connected with a connecting rod, the lower end of the sleeve is fixedly connected with a fixed rod, the lower end of the fixed, the first magnet and the second magnet are in contact with each other. The utility model discloses in, can effectively carry out overheat protection and use.

Description

Relay overheat protection device

Technical Field

The utility model relates to an overheat protection device field especially relates to an overload overheat protection device.

Background

A relay (english name: relay) is an electric control device, and is an electric appliance that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) meets a predetermined requirement. It has an interactive relationship between a control system (also called an input loop) and a controlled system (also called an output loop). It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

At present stage uses traditional relatively to the relay box overheat protection device, and the result of use is not good, compared, the utility model discloses, can effectively carry out an overheat protection, and can make relay box reworking again after its temperature reduces, the use can be very good.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a relay overheat protection device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a relay overheating protection device comprises a relay box and a protection box, wherein one side of the relay box is provided with a plurality of second vent holes, the end face of the relay box is provided with a first vent hole, the protection box is arranged on one side in the relay box, one side of the protection box is fixedly connected with a temperature sensor, the inner walls of two sides of the protection box are fixedly connected with sliding plates, the upper end face of each sliding plate is provided with a sliding chute, a supporting plate is slidably connected in the sliding chute, the middle part of the supporting plate is fixedly connected with a fixed block, the lower end of the fixed block is fixedly connected with a second contact rod, the lower end of the interior of the protection box is fixedly connected with a first contact rod, one side of the lower end of the sliding plate is fixedly connected with a sleeve, the interior of the sleeve is slidably connected with a push plate, the upper end of the push plate is fixedly connected with, telescopic lower extreme fixedly connected with dead lever, the lower extreme fixedly connected with second magnet of dead lever, the inside lower extreme both sides fixedly connected with first magnet of guard box, first magnet and second magnet contact each other.

As a further description of the above technical solution:

the lower extreme fixedly connected with support column of relaying case, the lower extreme fixedly connected with base of support column.

As a further description of the above technical solution:

a fan is arranged in the first vent hole.

As a further description of the above technical solution:

and the end surface of the first vent hole is fixedly connected with a dust cover.

As a further description of the above technical solution:

the upper port of the sliding groove is fixedly connected with a stop block.

As a further description of the above technical solution:

first springs are arranged in the sleeve and on two sides of the connecting rod, and second springs are arranged at the lower end of the inside of the sliding groove and at the lower end of the supporting plate.

The utility model discloses following beneficial effect has:

1. the utility model discloses, fan, first air vent, second air vent come to carry out the use of dispelling the heat to the relay box, and when the high temperature, first magnet magnetic force weakens, and first magnet will separate with second magnet to carry out a use that resets with the backup pad through the second spring, thereby cut off first contact lever and use with the contact lever contact of second, reach an overheat protection's effect.

2. The utility model discloses, and when the temperature reduced, first magnet contacted once more with second magnet for first contact lever contacts with second contact lever, makes the relay box continue to work and uses, and first spring can effectively cushion the suction between first magnet and the second magnet, makes first contact lever and second contact lever carry out an effectual contact and uses, and the result of use is very good.

Drawings

Fig. 1 is a schematic structural diagram of a relay overheat protection device provided by the present invention;

fig. 2 is a schematic plan view of a sliding plate of a relay overheat protection device according to the present invention;

fig. 3 is an enlarged schematic view of the structure at a in fig. 1.

Illustration of the drawings:

1. a support pillar; 2. a base; 3. a first contact lever; 4. a relay box; 5. a protective box; 6. a sliding plate; 7. a support plate; 8. a first magnet; 9. a second magnet; 10. a fan; 11. a second contact lever; 12. a fixed block; 13. a dust cover; 14. a first vent hole; 15. a second vent hole; 16. a temperature sensor; 17. pushing the plate; 18. a sleeve; 19. a first spring; 20. a connecting rod; 21. a chute; 22. a stopper; 23. fixing the rod; 24. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a relay overheating protection device comprises a relay box 4 and a protection box 5, wherein one side of the relay box 4 is provided with a plurality of second vent holes 15 for facilitating effective ventilation, the end face of the relay box 4 is provided with a first vent hole 14, the protection box 5 is arranged on one side inside the relay box 4, one side of the protection box 5 is fixedly connected with a temperature sensor 16 for sensing the temperature change condition of the relay box 4, the inner walls of two sides of the protection box 5 are fixedly connected with sliding plates 6, the upper end face of each sliding plate 6 is provided with a sliding groove 21, the inside of each sliding groove 21 is slidably connected with a supporting plate 7 for facilitating effective sliding use of the supporting plate 7, the middle part of the supporting plate 7 is fixedly connected with a fixed block 12, the lower end of the fixed block 12 is fixedly connected with a second contact rod 11 for supporting the second contact rod 11, and the lower end inside of the protection box 5 is fixedly connected with, when first contact lever 3 and the contact of second contact lever 11, relay box 4 can carry out a use, lower extreme one side fixed connection sleeve 18 of sliding plate 6, sleeve 18's inside sliding connection has push pedal 17, the upper end fixedly connected with connecting rod 20 of push pedal 17, the upper end of connecting rod 20 and the lower extreme fixed connection of backup pad 7, sleeve 18's lower extreme fixedly connected with dead lever 23, the lower extreme fixedly connected with second magnet 9 of dead lever 23, the first magnet 8 of inside lower extreme both sides fixedly connected with of protection box 5, first magnet 8 and second magnet 9 contact each other, when the high temperature, the magnetism of first magnet 8 disappears, and lose and contact each other with second magnet 9, thereby separate first contact lever 3 and second contact lever 11 through second spring 24, and just can break off the power supply.

The lower extreme fixedly connected with support column 1 of relaying case 4, the lower extreme fixedly connected with base 2 of support column 1, the inside fan 10 that is provided with of first air vent 14, carry out effectual use of cooling down to relay case 4, the terminal surface fixedly connected with dust cover 13 of first air vent 14, prevent that the air dust from getting into, produce the influence to relay case 4, the last port fixedly connected with dog 22 of spout 21, the inside of sleeve 18 and be provided with first spring 19 in the both sides of connecting rod 20, cushion mutual suction between first magnet 8 and the second magnet 9, be convenient for first contact lever 3 and the effective use of contacting of second contact lever 11, the inside lower extreme of spout 21 and be provided with second spring 24 at the lower extreme of backup pad 7, carry out a use that resets with backup pad 7, break off first contact lever 3 and the contact of second contact lever 11 contact.

The working principle is as follows: the utility model discloses overload overheat protection device, through fan 10, first air vent 14, second air vent 15 comes to carry out the use of 4 heat dissipations of relay box, when the high temperature, 8 magnetic forces of first magnet weaken, first magnet 8 will separate with second magnet 9, thereby carry out one through second spring 24 with backup pad 7 and reset the use, thereby cut off first contact lever 3 and the use of 11 contacts of second contact lever, reach an overheat protection's effect, and when the temperature reduces, first magnet 8 contacts once more with second magnet 9, make

first contact lever

3 and 11 contacts of second contact lever, make relay box 4 continue to work and use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a relay overheat protection device, includes relay box (4), protective housing (5), its characterized in that: one side of the relay box (4) is provided with a plurality of second vent holes (15), the end face of the relay box (4) is provided with a first vent hole (14), the protective box (5) is arranged on one side in the relay box (4), one side of the protective box (5) is fixedly connected with a temperature sensor (16), the inner walls of the two sides of the protective box (5) are fixedly connected with sliding plates (6), the upper end face of each sliding plate (6) is provided with a sliding chute (21), the inside of each sliding chute (21) is slidably connected with a supporting plate (7), the middle part of each supporting plate (7) is fixedly connected with a fixed block (12), the lower end of each fixed block (12) is fixedly connected with a second contact rod (11), the inner lower end of the protective box (5) is fixedly connected with a first contact rod (3), and one side of the lower end of each sliding plate (6) is fixedly connected with, the inside sliding connection of sleeve (18) has push pedal (17), the upper end fixedly connected with connecting rod (20) of push pedal (17), the upper end of connecting rod (20) and the lower extreme fixed connection of backup pad (7), the lower extreme fixedly connected with dead lever (23) of sleeve (18), the lower extreme fixedly connected with second magnet (9) of dead lever (23), the first magnet (8) of inside lower extreme both sides fixedly connected with of guard box (5), first magnet (8) and second magnet (9) contact each other.

2. The relay overheat protection device according to claim 1, wherein: the lower extreme fixedly connected with support column (1) of relaying case (4), the lower extreme fixedly connected with base (2) of support column (1).

3. The relay overheat protection device according to claim 1, wherein: a fan (10) is arranged in the first vent hole (14).

4. The relay overheat protection device according to claim 1, wherein: and a dust cover (13) is fixedly connected to the end surface of the first vent hole (14).

5. The relay overheat protection device according to claim 1, wherein: the upper port of the sliding groove (21) is fixedly connected with a stop block (22).

6. The relay overheat protection device according to claim 1, wherein: first springs (19) are arranged inside the sleeve (18) and on two sides of the connecting rod (20), and second springs (24) are arranged at the lower end inside the sliding groove (21) and on the lower end of the supporting plate (7).