CN218548271U

CN218548271U - Overload protector

Info

Publication number: CN218548271U
Application number: CN202222595100.6U
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: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-02-28
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses an overload protector, be in including casing and setting button assembly on the casing, just be in the inside electrically conductive mechanism that is provided with of casing, electrically conductive mechanism is including setting up the inside bimetallic strip of casing, be provided with on the bimetallic strip and move terminal and movable contact, the bimetallic strip passes through movable contact and stationary terminal contact are closed, the bimetallic strip with it is in the same place to move the terminal through the riveting fastening. The utility model discloses its moves terminal and bimetallic strip connected mode and fastens more, its reasonable in design, simple structure, and then makes the yields of making overload protector better, can satisfy the qualification rate requirement of manufacturing enterprise more, the also better user demand who satisfies user's safety.

Description

Overload protector

Technical Field

The utility model relates to a protective apparatus technical field of electrical apparatus especially relates to an overload protection ware.

Background

It is known that, in some sockets connected to the utility power, wherein when the equipment circuit needs to realize the functions of control and overload protection, this kind just needs to install control switch and overload protection switch (overload protector) between socket and equipment circuit additional, as the chinese utility model patent with the publication number CN208738476U of grant, a socket with overload protector is disclosed, it is together through welding mode fixed connection to the movable terminal and the sheetmetal of movable terminal subassembly among the current overload protector, because the movable terminal and sheetmetal fixed connection uniformity can not be satisfied to the bad size of welding current and welding piece in the welding process, the overload protector yields that makes like this also lower, consequently can't satisfy the user demand, need to make an improvement urgently.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an overload protector, it moves terminal and bimetallic strip connected mode and fastens more, its reasonable in design, simple structure, and then makes overload protector's yields better, can satisfy the qualification rate requirement of manufacturing enterprise more, the user demand of also better satisfying user safety.

(II) technical problems to be solved

In order to realize the purpose, the utility model adopts the technical scheme that:

an overload protector comprises a shell and a button assembly arranged on the shell, wherein a conductive mechanism is arranged in the shell and comprises a bimetallic strip arranged in the shell, a movable terminal and a movable contact are arranged on the bimetallic strip, the bimetallic strip is contacted and closed with a fixed terminal through the movable contact, and the bimetallic strip and the movable terminal are fastened together through riveting.

Preferably, the bimetallic strip is provided with an installation position, correspondingly, the movable terminal is provided with a sheet rivet, the sheet rivet is installed on the installation position, and the movable terminal is fixedly riveted on the bimetallic strip by the sheet rivet.

Preferably, the movable terminal is provided with a terminal hole for installing the sheet rivet.

Preferably, the terminal holes are octagonal holes.

Preferably, a fixed contact is arranged on the fixed terminal, and a movable contact on the bimetallic strip is contacted and closed with the fixed contact on the fixed terminal.

Preferably, the housing comprises a main body and a cover plate, the main body and the cover plate are fixedly connected together by a rivet I, and the movable terminal and the fixed terminal respectively extend out from one side of the housing.

Preferably, the rivet I is a hollow rivet.

Preferably, the movable terminal and the fixed terminal are respectively fixed with the main body through a second rivet.

Preferably, the second rivet is a solid rivet.

Preferably, the button assembly comprises a reset button arranged on the shell, a compression spring is arranged on the reset button inside the shell, and a fastening nut is arranged between the reset button and the shell.

(III) technical effects to be achieved

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

one of the two metal sheets and the movable terminal are fastened together through riveting, the movable terminal is fastened with the connection mode of the two metal sheets more, the design is reasonable, the structure is simple, the yield of the overload protector is better, the qualification rate requirement of a production enterprise can be met, and the use requirement of user safety is met better.

It is two, the utility model discloses be provided with the installation position on the bimetallic strip, with it correspondingly, be provided with the piece rivet on the movable terminal, the piece rivet is installed on the installation position, the piece rivet will move the fixed riveting of terminal on the bimetallic strip, this kind of mode riveting fastening has avoided leading actuating terminal and bimetallic strip fixed connection uniformity can not satisfy the user demand because of welding current size and welding strip are not good in connecting through the welding mode on the one hand, the overload protection ware yields that makes like this and produce is also lower, can't satisfy the requirement, this kind of piece rivet of on the other hand is installed on the installation position of bimetallic strip, it is accurate to fix a position, the quick accurate installation of being convenient for, and the electric current is through also comparatively stable in later stage use, the operation is more reliable and safe.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is an explosion diagram of the present invention.

Fig. 3 is a schematic diagram of the internal structure of the main body of the present invention.

Fig. 4 is a schematic view of the connection state between the bimetallic strip and the movable terminal through the rivet.

Fig. 5 is a schematic view of the movable terminal structure of the present invention.

Fig. 6 is a schematic view of the sheet rivet structure of the present invention.

Fig. 7 is a perspective view of the sheet rivet of the present invention.

In the figure: 1, a shell; 2, a button assembly; 3, a conductive mechanism; 11, a main body; 12, a cover plate; 13, riveting a first rivet; 14, riveting II; 21, a reset button; 22, a compression spring; 23, fastening a nut; 31, a bimetal; 32, a movable terminal; 33, moving contacts; 34, a stationary terminal; 35, sheet rivets; 36, a stationary contact; 321, terminal holes.

Detailed Description

In the description of the present invention, it should be noted that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to which the description refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The first embodiment is as follows: referring to fig. 1, 2 and 3, an overload protector comprises a shell 1 and a button assembly 2 arranged on the shell 1, wherein a conductive mechanism 3 is arranged inside the shell 1, the conductive mechanism 3 comprises a bimetallic strip 31 arranged inside the shell 1, the bimetallic strip 31 is made of a temperature-sensitive deformation material, a movable terminal 32 and a movable contact 33 are arranged on the bimetallic strip 31, the bimetallic strip 31 is in contact closure with a fixed terminal 34 through the movable contact 33, the bimetallic strip 31 and the movable terminal 32 are fastened together through riveting, the welding mode in the prior art is finished in such a way, and thus the phenomena of poor product consistency and higher product reject ratio caused by poor fixation of the welding current and the welded strip are avoided.

The second embodiment: as shown in fig. 2 and 4, on the basis of the first embodiment, the bimetal 31 and the movable terminal 32 are fastened together by riveting, specifically, the bimetal 31 is provided with an installation site, and correspondingly, the movable terminal 32 is provided with the sheet rivet 35, and the sheet rivet 35 is installed on the installation site, so that the movable terminal 32 is fixedly riveted on the bimetal 31 by the sheet rivet 35, in this way, on one hand, the riveting fastening avoids that the consistency of the fixed connection between the movable terminal 32 and the bimetal 31 cannot meet the use requirement due to the welding current and the poor welding of the welding sheet in the connection by welding, so that the manufactured overload protector has a low yield and cannot meet the requirement, on the other hand, the sheet rivet 35 is installed on the installation site of the bimetal 31, so that the positioning is accurate, the rapid and accurate installation is facilitated, and the current passing is stable in the later use process, and the operation is more reliable and safer. It is also to be noted that, as shown in fig. 5, the movable terminal 32 is provided with a terminal hole 321, the terminal hole 321 is used for mounting the sheet rivet 35 (as shown in fig. 6 and 7), and an octagonal hole is adopted for the terminal hole 321, so that the riveting is firmer.

Example three: as shown in fig. 2, in the first or second embodiment, the fixed terminal 34 is provided with the fixed contact 36, and the movable contact 33 of the bimetal 31 is in contact with and closed to the fixed contact 36 of the fixed terminal 34, which is beneficial to normal operation.

Example four: as shown in fig. 1, 2 and 3, based on the first embodiment, the second embodiment or the third embodiment, the housing 1 includes a main body 11 and a cover plate 12, the main body 11 and the cover plate 12 are fixedly connected together by a first rivet 13, which reduces the difficulty of mounting the housing 1, and the movable terminal 32 and the stationary terminal 34 extend from one side of the housing 1 respectively, and the first rivet 13 is a hollow rivet, which facilitates mounting and manufacturing. It is also to be noted that the moving terminal 32 and the fixed terminal 34 are fixed to the body 11 by the second rivet 14, and the second rivet 14 is solid.

Example five: as shown in fig. 1, 2 and 3, on the basis of the first embodiment, the second embodiment, the third embodiment or the fourth embodiment, the button assembly 2 includes a reset button 21 disposed on the housing 1, a compression spring 22 is disposed on the reset button 2 inside the housing 1, the reset button 2 is reset by the compression spring 22, and a fastening nut 23 is disposed between the reset button 21 and the housing 1.

When the circuit is normal, the compression spring 22 is compressed, the movable contact 33 on the bimetallic strip 31 is contacted and closed with the fixed contact 36 on the fixed terminal 34, and current flows through the bimetallic strip 31 and the strip rivet 35 in sequence and then flows out through the movable contact 33 after entering through the fixed terminal 34; when the circuit is abnormal, such as short circuit or excessive current, the current entering the current overload protector through the fixed terminal 34 suddenly increases, the current flowing through the bimetal 31 increases, the bimetal 31 is heated and deformed, so that the movable contact 33 on the bimetal 31 is separated from the fixed contact 36 on the fixed terminal 34, the reset button 21 moves upwards under the action of the compression spring 22 under the reset condition of resilience of the compression spring 22, the bump on the side surface of the reset button 21 is positioned between the movable contact 33 on the bimetal 31 and the fixed contact 36 on the fixed terminal 34, and the reset button 21 is exposed out of the housing 1, so that people can easily notice, know that the circuit has failed, and take corresponding measures.

Standard parts that use in this application file all can purchase from the market, and the concrete connected mode of each part all adopts conventional means such as ripe bolt among the prior art, rivet, and button and double-colored sheetmetal inner member all adopt conventional model among the prior art, and its internal structure belongs to the prior art structure, and the workman just can accomplish according to prior art manual and carry out normal operating to it, and circuit connection adopts conventional connected mode among the prior art, does not make specific statement here again.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.

Claims

1. An overload protector, includes casing (1) and sets up button assembly (2) on casing (1), and is in casing (1) inside is provided with electrically conductive mechanism (3), its characterized in that: the conducting mechanism (3) comprises a bimetallic strip (31) arranged inside the shell (1), a movable terminal (32) and a movable contact (33) are arranged on the bimetallic strip (31), the bimetallic strip (31) is in contact closure with a fixed terminal (34) through the movable contact (33), and the bimetallic strip (31) and the movable terminal (32) are fastened together through riveting.

2. An overload protector according to claim 1 wherein: the bimetal strip (31) is provided with an installation position, correspondingly, the movable terminal (32) is provided with a sheet rivet (35), the sheet rivet (35) is installed on the installation position, and the movable terminal (32) is fixedly riveted on the bimetal strip (31) by the sheet rivet (35).

3. An overload protector according to claim 2 wherein: the movable terminal (32) is provided with a terminal hole (321), and the terminal hole (321) is used for installing the sheet rivet (35).

4. An overload protector according to claim 3 wherein: the terminal holes (321) adopt octagonal holes.

5. An overload protector according to claim 1 or claim 2 or claim 3 or claim 4 wherein: and a fixed contact (36) is arranged on the fixed terminal (34), and a movable contact (33) on the bimetallic strip (31) is contacted and closed with the fixed contact (36) on the fixed terminal (34).

6. An overload protector according to claim 1 or claim 2 or claim 3 or claim 4 wherein: the shell (1) comprises a main body (11) and a cover plate (12), the main body (11) and the cover plate (12) are fixedly connected together through a rivet I (13), and a movable terminal (32) and a fixed terminal (34) extend out from one side of the shell (1) respectively.

7. An overload protector according to claim 6 wherein: the rivet I (13) is a hollow rivet.

8. An overload protector according to claim 6 wherein: the movable terminal (32) and the fixed terminal (34) are fixed with the main body (11) through a second rivet (14).

9. An overload protector according to claim 8 wherein: the second rivet (14) is a solid rivet.

10. An overload protector according to claim 1 or 2 or 3 or 4 or 7 or 8 or 9 wherein: the button assembly (2) comprises a reset button (21) arranged on the shell (1), a compression spring (22) is arranged on the reset button (21) inside the shell (1), and a fastening nut (23) is arranged between the reset button (21) and the shell (1).