CN218769316U

CN218769316U - Thermal overload relay

Info

Publication number: CN218769316U
Application number: CN202223206386.0U
Authority: CN
Inventors: 左延静
Original assignee: Relay Electric Co ltd
Current assignee: Relay Electric Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-28
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a thermal overload relay, including thermal overload relay body, box, the interior diapire symmetry of box is provided with two fixed plates, all set up flutedly on two fixed plates, the recess bottom is rotated through articulated and is installed the commentaries on classics board, the fixed arc lug that is provided with in commentaries on classics board top one side, change board opposite side fixedly connected with spring, the spring other end with recess inner wall fixed connection, the arc draw-in groove has all been seted up to thermal overload relay body both sides, consequently the utility model discloses need not to adopt the bolt to fix, made things convenient for the staff to maintain thermal overload relay body, labour saving and time saving has accelerated the progress when maintaining, and has promoted the heat dispersion to thermal overload relay.

Description

Thermal overload relay

Technical Field

The utility model relates to a relay technical field, concretely relates to thermal overload relay.

Background

The thermal overload relay is also called a thermal relay, and the working principle is that the current flowing into a thermal element generates heat, so that bimetallic strips with different expansion coefficients deform, and when the deformation reaches a certain distance, a connecting rod is pushed to act, so that a control circuit is disconnected, a contactor loses power, a main circuit is disconnected, and the overload protection of a motor is realized.

Current thermal overload relay on the market has the shortcoming of the dismouting of being not convenient for, and when using, current thermal overload relay generally adopts the bolt to fix, not only is unfavorable for the installation, and it is inconvenient to dismantle simultaneously, influences the staff and maintains it, is not convenient for use. And the thermal overload relay is easy to generate a large amount of heat under long-time work, and the operation and the service life of the relay can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a thermal overload relay to current thermal overload relay that proposes in solving above-mentioned background generally adopts the bolt to fix, is unfavorable for the installation, dismantles inconveniently, and thermal overload relay easily produces a large amount of heats under long-time work, can influence relay operation and life's problem.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a thermal overload relay, includes thermal overload relay body, box, the inner diapire symmetry of box is provided with two fixed plates, all set up flutedly on two fixed plates, the recess bottom is installed the commentaries on classics board through articulated rotation, the fixed arc lug that is provided with in commentaries on classics board top one side, commentaries on classics board opposite side fixedly connected with spring, the spring other end with recess inner wall fixed connection, the arc draw-in groove has all been seted up to thermal overload relay body both sides, arc lug card inserts in the arc draw-in groove.

Preferably, the air intake has been seted up to box one side, closely the laminating has the refrigeration board on the air intake inner wall, the air outlet has been seted up to the box opposite side, there is the motor through mounting bracket fixed mounting in the air outlet, the tip of motor is connected with the flabellum through the pivot rotation.

Preferably, the cover plate is rotatably installed at the top of one side of the box body in a hinged mode, the clamping groove is formed in the other side of the cover plate, the clamping block is arranged on the other side of the box body, and the clamping block is clamped into the clamping groove.

Preferably, the openings of the air inlet and the air outlet are both fixedly provided with dust screens.

Preferably, a plurality of through wire holes which are symmetrically distributed are formed in the bottom of each of two sides of the box body.

Advantageous effects

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

1. the utility model provides a pair of thermal overload relay is through all seting up flutedly on two fixed plates, the recess bottom is rotated through articulated and is installed the commentaries on classics board, the fixed arc lug that is provided with in commentaries on classics board top one side, change board opposite side fixedly connected with spring, the spring other end with recess inner wall fixed connection, the arc draw-in groove has all been seted up to thermal overload relay body both sides, arc lug card inserts in the arc draw-in groove, realized need not to adopt the bolt to fix, made things convenient for the staff to maintain the thermal relay body, labour saving and time saving has accelerated the progress when maintaining.

2. Through having seted up the air intake in box one side, closely the laminating has the refrigeration board on the air intake inner wall, the air outlet has been seted up to the box opposite side, there is the motor through mounting bracket fixed mounting in the air outlet, the tip of motor is rotated through the pivot and is connected with the flabellum, has played and has carried out radiating effect to the heat overload relay, has improved the heat dispersion to the heat overload relay, just inside the dust screen can prevent that the dust from entering into the box, has reduced the influence of dust to the heat overload relay body.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

the correspondence between the labels of the various figures in the drawing and the names of the components is as follows:

1. a thermal overload relay body; 2. a box body; 3. a fixing plate; 4. a groove; 5. rotating the plate; 6. an arc-shaped bump; 7. a spring; 8. an arc-shaped clamping groove; 9. an air inlet; 10. a refrigeration block; 11. an air outlet; 12. a motor; 13. a fan blade; 14. a cover plate; 15. a card slot; 16. buckling; 17. a dust screen; 18. a through hole.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

As shown in fig. 1-2, it is a schematic structural diagram of a thermal overload relay according to a preferred embodiment of the present invention;

the utility model discloses a thermal overload relay, including thermal overload relay body 1, box 2, its characterized in that: the inner bottom wall symmetry of box 2 is provided with two fixed plates 3, all set up fluted 4 on two

fixed plates

3, 4 bottoms of recess are installed through articulated rotation and are changeed board 5, 5 fixed arc lugs 6 that are provided with in top one side of commentaries on classics board, 5 opposite side fixedly connected with springs 7 of commentaries on classics board, the spring 7 other end with 4 inner wall fixed connection of recess, arc draw-in groove 8 has all been seted up to 1 both sides of thermal overload relay body, 6 joint income of arc lug in arc draw-in groove 8, made things convenient for the staff to maintain thermal relay body 1, labour saving and time saving has accelerated the progress when maintaining. .

The utility model discloses a thermal overload relay, air intake 9 has been seted up to 2 one sides of box, it has refrigeration board 10 to closely laminate on the 9 inner walls of air intake, air outlet 11 has been seted up to 2 opposite sides of box, there is motor 12 through mounting bracket fixed mounting in the air outlet 11, motor 12's tip is rotated through the pivot and is connected with flabellum 13, has played and has carried out radiating effect to thermal overload relay body 1, has improved the heat dispersion to the thermal overload relay body.

The utility model discloses a thermal overload relay, 2 one side tops of box are rotated through articulated and are installed apron 14, apron 14 opposite side is equipped with draw-in groove 15, 2 opposite sides of box are equipped with

fixture block

16, 16 joints of fixture block are gone into in the draw-in groove 15.

The utility model discloses a thermal overload relay, air intake 9 with the opening part of air outlet 11 is the fixed dust screen 17 that is provided with all, inside dust screen 17 can prevent that the dust from entering into box 2, reduced the influence of dust to thermal overload relay body 1.

The utility model discloses a thermal overload relay, a plurality of through-line holes 18 that are symmetrical dress distribution are all seted up to 2 both sides bottoms of box.

The utility model discloses a thermal overload relay, its mounting means, connected mode or mode of setting are common mechanical type, as long as can reach all can implement of its beneficial effect.

The utility model discloses a theory of operation:

when installing thermal overload relay body 1, open apron 14 and promote thermal overload relay body 1 to between two fixed plates 3, change board 5 by thermal overload relay body 1 extrusion recess 4, after pushing thermal overload relay body to the end, the bounce of spring 7 will change board 5 and release in the recess 4, arc lug 6 slides in the arc draw-in groove 8, can fix thermal overload relay body 1 inside box 2, when needing to dismantle, reverse above-mentioned operation can. When thermal overload relay body high temperature, open switch and drive motor 12 operation, drive flabellum 13 operation through the pivot during motor 12 operation, flabellum 13 sees through dust screen 17 and accelerates the discharge with inside heat to the outside, simultaneously the inside refrigeration piece of air outlet 9 starts, and inside the outside air entered into box 2 after refrigerating through refrigeration piece 10, played the effect to thermal overload relay rapid cooling.

The above description is for further details of the present invention, and it is not assumed that the embodiments of the present invention are limited to these descriptions, and it is obvious to those skilled in the art that the present invention can be implemented by a plurality of simple deductions or replacements without departing from the concept of the present invention, and all should be considered as belonging to the protection scope defined by the claims submitted by the present invention.

Claims

1. The utility model provides a thermal overload relay, includes thermal overload relay body (1), box (2), its characterized in that: the inner bottom wall symmetry of box (2) is provided with two fixed plates (3), all set up fluted (4) on two fixed plates (3), recess (4) bottom is installed through articulated rotation and is changeed board (5), change board (5) top one side fixed arc lug (6) that is provided with, change board (5) opposite side fixedly connected with spring (7), the spring (7) other end with recess (4) inner wall fixed connection, arc draw-in groove (8) have all been seted up to heat overload relay body (1) both sides, arc lug (6) joint income in arc draw-in groove (8).

2. A thermal overload relay according to claim 1, wherein: air intake (9) have been seted up to box (2) one side, closely the laminating has refrigeration board (10) on air intake (9) inner wall, air outlet (11) have been seted up to box (2) opposite side, there is motor (12) through mounting bracket fixed mounting in air outlet (11), the tip of motor (12) is connected with flabellum (13) through the pivot rotation.

3. A thermal overload relay according to claim 1, wherein: the box body (2) is characterized in that a cover plate (14) is rotatably installed at the top of one side of the box body (2) through a hinge, a clamping groove (15) is formed in the other side of the cover plate (14), a clamping block (16) is arranged on the other side of the box body (2), and the clamping block (16) is clamped into the clamping groove (15).

4. A thermal overload relay according to claim 2, wherein: and dust screens (17) are fixedly arranged at the openings of the air inlet (9) and the air outlet (11).

5. A thermal overload relay according to claim 1, wherein: the bottom parts of two sides of the box body (2) are respectively provided with a plurality of through wire holes (18) which are symmetrically distributed.