CN220895412U

CN220895412U - Overload protector

Info

Publication number: CN220895412U
Application number: CN202322902132.0U
Authority: CN
Inventors: 王建平
Original assignee: Cixi Minghe Xinghua Electric Appliance Co ltd
Current assignee: Cixi Minghe Xinghua Electric Appliance Co ltd
Priority date: 2023-10-28
Filing date: 2023-10-28
Publication date: 2024-05-03
Anticipated expiration: 2033-10-28

Abstract

The utility model provides an overload protector, which comprises a base, wherein a static terminal is arranged in the base, one end of the static terminal extends to the outer side of the base, one end of the static terminal, which does not penetrate through the base, is connected with a contact, a movable terminal is also arranged in the base, one end of the movable terminal is connected with a bimetallic strip, the bimetallic strip is arranged above the contact, one end, far away from the static terminal, of the base is connected with a hexagonal bolt sleeve, and the middle part of the hexagonal bolt sleeve is movably sleeved with a button; the contact point is used for directly electrifying the static terminal and the movable terminal, the bimetallic strip is deformed due to heat generation, the contact block is directly disconnected with the contact point, the static terminal and the movable terminal are not electrified any more, the real-time induction and the rapid response are realized according to the internal temperature during use, the protection effect on a circuit is realized, the response is very sensitive, and the danger of burning caused by overlarge internal load of a motor and the like is prevented.

Description

Overload protector

Technical Field

The utility model belongs to the field of overload protection, and particularly relates to an overload protector.

Background

With the progress of the times, the equipment is continuously updated, the production mode is changed, the air compressors on the market are inoculated, however, most of the motors on the market are not provided with protectors, the temperature of the motors is continuously increased when the motors are in operation, the problem of burning is easily caused when the motors are overheated or the load is overlarge, the overload protectors are connected in series in equipment loops, when abnormal conditions occur in the operation process of the equipment to cause overlarge current or the temperature of the equipment to be overlarge, bimetallic strips in the protectors deform due to thermal deformation, push open movable reeds to disconnect normally closed contacts, thereby disconnecting the equipment power-on loops, achieving the aim of protecting the equipment from burning out.

In summary, the present utility model provides an overload protector to solve the above-mentioned problems.

Disclosure of utility model

In order to solve the technical problems, the utility model provides an overload protector, which solves the problems that the overload protector in the prior art has the defects of complex structure, insensitive response and the like and is easy to cause certain potential safety hazard and the like.

The utility model provides an overload protector, includes the base, be provided with quiet terminal in the base, the one end of quiet terminal extends to the outside of base, the one end that does not pass the base on the quiet terminal is connected with the contact, still be provided with the movable terminal in the base, the one end of movable terminal is connected with bimetallic strip, bimetallic strip sets up the top at the contact, the one end that keeps away from quiet terminal on the base is connected with the hex bolts cover, the middle part movable sleeve of hex bolts cover is equipped with the button, the one end of button is connected with the button end cap, the surface of base is provided with the apron, be connected through aluminium rivet between apron and the base.

Further, a contact block is arranged at the bottom of the bimetallic strip, and the contact block is contacted with the contact.

Further, one end of the hexagonal bolt sleeve is rotationally clamped between the base and the cover plate.

Further, one end of the button penetrates through the hexagonal bolt sleeve and extends into the base, one end of the button extending into the base is fixedly connected with a limiting ring, and the button plug is arranged at one end of the button close to the limiting ring.

Further, a spring is movably sleeved on the surface of the button, and one end of the spring is contacted with the inner wall of the hexagonal bolt sleeve.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the utility model, the contact point is utilized to directly electrify the static terminal and the movable terminal, the bimetallic strip is deformed due to heat generation, the contact block is directly disconnected with the contact point, the static terminal and the movable terminal are not electrified any more, the real-time induction and the rapid response are realized according to the internal temperature during use, the protection effect on a circuit is realized, the response is very sensitive, the risk of burning caused by overlarge internal load of a motor and the like is prevented, and the damage risk caused by an electric leakage locking circuit is avoided.

2. According to the utility model, the deformation state of the bimetallic strip is controlled through the movable button, after the danger is relieved, the contact between the bimetallic strip and the static terminal can be controlled, the bimetallic strip is connected and electrified again, and the overload protector can be normally used, so that the normal operation of equipment is ensured.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a perspective view of the present utility model;

FIG. 3 is an internal perspective view of the present utility model;

fig. 4 is a schematic internal view of the present utility model.

In the figure:

1. An aluminum rivet; 2. a cover plate; 3. a static terminal; 4. a contact; 5. a movable terminal; 6. bimetallic strips; 7. a base; 8. a button plug; 9. a button; 10. a spring; 11. hexagonal bolt sleeve.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1-4, the utility model provides an overload protector, which comprises a base 7, wherein a static terminal 3 is arranged in the base 7, one end of the static terminal 3 extends to the outer side of the base 7, one end of the static terminal 3, which does not penetrate through the base 7, is connected with a contact 4, a movable terminal 5 is also arranged in the base 7, one end of the movable terminal 5 is connected with a bimetallic strip 6, the bimetallic strip 6 is arranged above the contact 4, one end, far away from the static terminal 3, of the base 7 is connected with a hexagonal bolt sleeve 11, a button 9 is movably sleeved in the middle of the hexagonal bolt sleeve 11, one end of the button 9 is connected with a button plug 8, the surface of the base 7 is provided with a cover plate 2, and the cover plate 2 is connected with the base 7 through an aluminum rivet 1;

The button plug 8 is made of metal material, and has the characteristics of high temperature resistance and difficult melting.

As an embodiment of the utility model, the bottom of the bimetal 6 is provided with a contact block, which is in contact with the contact 4.

As an embodiment of the present utility model, one end of the hexagonal bolt sleeve 11 is rotatably engaged between the base 7 and the cover plate 2.

As an embodiment of the present utility model, one end of the button 9 penetrates through the hexagonal bolt sleeve 11 and extends into the base 7, a limiting ring is fixedly connected to one end of the button 9 extending into the base 7, and the button plug 8 is disposed at one end of the button 9 close to the limiting ring.

As an embodiment of the present utility model, the surface of the button 9 is movably sleeved with a spring 10, and one end of the spring 10 is in contact with the inner wall of the hexagonal bolt sleeve 11.

The specific working principle is as follows:

The contact 4 is used for contacting with the contact block of the bimetallic strip 6 in a normal state, so that the static terminal 3 and the movable terminal 5 are directly electrified, after the circuit breaks down, the circuit generates heat, the bimetallic strip 6 is deformed due to heat generation, the contact block is directly disconnected with the contact 4, the static terminal 3 and the movable terminal 5 are not electrified any more, real-time induction is carried out according to the internal temperature during use, the quick response plays a role in protecting the circuit, the reaction is very sensitive, the internal load such as a motor is prevented from being overlarge, the risk of burning is avoided, the damage danger caused by an electric leakage locking circuit is avoided, the deformation state of the bimetallic strip 6 is controlled through a movable button, the fault problem is overhauled, after the danger is relieved, one end of the button 9 is pressed, the button 9 supports the button plug 8 to be close to the bimetallic strip 6, the contact between the bimetallic strip 6 and the static terminal 3 is connected with electricity again, the overload protector can be normally used, and the normal operation of equipment is ensured.

Finally, it should be noted that: in the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments of the present utility model have been shown and described for the purpose of illustration and description, it being understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made therein by one of ordinary skill in the art without departing from the scope of the utility model.

Claims

1. An overload protector comprising a base (7), characterized in that: be provided with quiet terminal (3) in base (7), the one end of quiet terminal (3) extends to the outside of base (7), the one end that does not pass base (7) on quiet terminal (3) is connected with contact (4), still be provided with in base (7) and move terminal (5), the one end that moves terminal (5) is connected with bimetallic strip (6), bimetallic strip (6) set up in the top of contact (4), the one end that keeps away from quiet terminal (3) on base (7) is connected with hexagonal bolt cover (11), the middle part movable sleeve of hexagonal bolt cover (11) is equipped with button (9), the one end of button (9) is connected with button end cap (8), the surface of base (7) is provided with apron (2), be connected through aluminium rivet (1) between apron (2) and the base (7).

2. The overload protector as claimed in claim 1 wherein: the bottom of the bimetallic strip (6) is provided with a contact block, and the contact block is contacted with the contact (4).

3. The overload protector as claimed in claim 1 wherein: one end of the hexagonal bolt sleeve (11) is rotationally clamped between the base (7) and the cover plate (2).

4. The overload protector as claimed in claim 1 wherein: one end of the button (9) penetrates through the hexagon bolt sleeve (11) and extends into the base (7), one end of the button (9) extending into the base (7) is fixedly connected with a limiting ring, and the button plug (8) is arranged at one end, close to the limiting ring, of the button (9).

5. The overload protector as claimed in claim 1 wherein: the surface activity cover of button (9) is equipped with spring (10), the one end of spring (10) is contacted with the inner wall of hexagon bolt cover (11).