CN216773713U

CN216773713U - Safety plug

Info

Publication number: CN216773713U
Application number: CN202220406236.5U
Authority: CN
Inventors: 文爱成
Original assignee: Foshan Shunde Oulija Electric Appliance Technology Co ltd
Current assignee: Foshan Shunde Oulija Electric Appliance Technology Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-06-17
Anticipated expiration: 2032-02-24

Abstract

The utility model discloses a safety plug which comprises an upper shell, a lower shell, a circuit board and a conductive metal piece. The breakpoint reset circuit is arranged on the circuit board to form a contact circuit, when power-off reset is needed, the conductive metal piece is pressed to the surface of the circuit board by pressing the elastic soft rubber key, so that the conductive metal piece is abutted against the breakpoint reset circuit, the breakpoint reset circuit can be switched on, so that the driving circuit board completes the power-off reset operation, then the elastic soft rubber key can drive the conductive metal sheet to reset under the action of the elasticity of the elastic soft rubber key, the structure is simple, the operation is convenient, and owing to change to contact machinery conducting structure, therefore the stability in use is stronger, and through this kind of mode, breakpoint reset circuit can set up in the circuit board back also can set up in the circuit board openly moreover, and electrically conductive metalwork can be directly at the circuit board openly with breakpoint reset circuit butt, thereby also can pass the circuit board with breakpoint reset circuit butt, make its mode of setting more various.

Description

Safety plug

Technical Field

The utility model relates to the field of plugs, in particular to a safety plug.

Background

Present high-power electrical apparatus, for the safety consideration, all can adopt the safety plug, be provided with the outage reset switch on the safety plug, be used for the outage to reset, but the problem that exists is, current safety plug is in order to reach the effect that the outage resets, all select the installation to dabble the switch on the circuit board, however dabs the switch cost higher, and need adopt hot melt welded form to install in the front of circuit board, the step is more, the technology is comparatively troublesome, and the equipment restriction is great, and dabs the switch structure relatively complicacy moreover, lead to the stability in use relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a safety plug with simple structure, convenient assembly, lower cost and higher stability.

The technical scheme adopted by the utility model for solving the problems is as follows: a safety plug, comprising:

the upper shell is covered on the lower shell to form a cavity, a circuit board is arranged in the cavity upwards, a breakpoint reset circuit is arranged on the surface of the circuit board, a through hole is formed in the upper shell, and an elastic soft rubber key protruding out of the outer surface of the upper shell is arranged on the through hole;

the conductive metal piece is arranged in the cavity, the top of the conductive metal piece is connected with the elastic soft rubber button and can move up and down in the cavity along with the elastic soft rubber button, and the conductive metal piece can abut against the breakpoint reset circuit in the up-and-down moving process of the conductive metal piece in the cavity.

As a further improvement of the technical scheme, the bottom of the elastic soft rubber key is provided with a slot, and the top of the conductive metal piece is provided with an inserted rod inserted in the slot.

As a further improvement of the technical scheme, barbs used for being fixed in the slots are arranged on two sides of the inserted bar.

As a further improvement of the technical scheme, the conductive metal piece is T-shaped, and the bottom of the inserted bar extends towards two ends to form a pressing sheet abutted against the breakpoint reset circuit.

As a further improvement of the above technical solution, the surface of the circuit board is further provided with a conventional on-off switch, and the upper housing is provided with a contact pressing key capable of pressing the conventional on-off switch.

As a further improvement of the above technical solution, the surfaces of the conductive metal member and the circuit board are provided with return springs.

As a further improvement of the above technical solution, the bottom of the cavity is provided with a receiving post and hooks located at two sides of the receiving post, the back of the circuit board abuts against the receiving post, and two sides of the circuit board are clamped by the hooks.

The utility model has the beneficial effects that: the safety plug forms a contact circuit through the breakpoint reset circuit on the circuit board, when power-off reset is needed, the conductive metal piece is pressed to the surface of the circuit board only by pressing the elastic soft rubber key so that the conductive metal piece is abutted with the breakpoint reset circuit, the breakpoint reset circuit can be switched on, so that the driving circuit board completes the power-off reset operation, then the elastic soft rubber key can drive the conductive metal sheet to reset under the action of the elasticity of the elastic soft rubber key, the structure is simple, the operation is convenient, and owing to change into contact mechanical conductive structure, consequently stability in use is stronger, and through this kind of mode, breakpoint reset circuit can set up also can set up in the circuit board openly in the circuit board back in addition, and electrically conductive metalwork can be directly at the circuit board openly with breakpoint reset circuit butt, thereby also can pass the circuit board and with breakpoint reset circuit butt, makes its mode of setting more various.

Drawings

The utility model is further explained below with reference to the drawing description and the detailed description.

FIG. 1 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 2 is an exploded view of a preferred embodiment of the present invention;

fig. 3 is a schematic structural diagram of a conductive metal member according to a preferred embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 3, a safety plug includes:

the circuit board reset circuit comprises a lower shell 10, wherein an upper shell 11 covers the lower shell 10, the upper shell 11 and the lower shell 10 enclose to form a cavity 12, a circuit board 20 is arranged in the cavity 12 upwards, a breakpoint reset circuit is arranged on the surface of the circuit board 20, a through hole 110 is arranged on the upper shell 11, and an elastic soft rubber key 30 protruding out of the outer surface of the upper shell 11 is arranged on the through hole 110;

the conductive metal piece 40 is arranged in the cavity 12, the top of the conductive metal piece 40 is connected with the elastic soft rubber key 30 and can move up and down in the cavity 12 along with the elastic soft rubber key 30, and the conductive metal piece 40 can abut against the breakpoint reset circuit in the process of moving up and down in the cavity 12.

The safety plug forms a contact circuit through the breakpoint reset circuit on the circuit board 20, when power-off reset is needed, the breakpoint reset circuit can be switched on only by pressing the elastic soft rubber key 30 to press the conductive metal piece 40 to the surface of the circuit board 20 to enable the conductive metal piece to be abutted against the breakpoint reset circuit, so that the circuit board 20 is driven to complete power-off reset operation, then the elastic soft rubber key 30 can drive the conductive metal piece to reset under the action of self elasticity, the structure is simple, the operation is convenient, and the use stability is stronger because the contact type mechanical conductive structure is changed, and through the mode, the breakpoint reset circuit can be arranged on the back of the circuit board 20 and also can be arranged on the front of the circuit board 20, the conductive metal piece 40 can be directly abutted against the breakpoint reset circuit on the front of the circuit board 20 and can also penetrate through the circuit board 20 to be abutted against the breakpoint reset circuit, so that the arrangement mode is more diversified.

Preferably, in order to facilitate installation of the conductive metal part 40, the bottom of the elastic soft rubber key 30 is provided with a slot, and the top of the conductive metal part 40 is provided with an insertion rod 41 inserted into the slot. On this basis, in order to fix the conductive metal sheet better, it is preferable that two sides of the inserting rod 41 are provided with barbs 43 for fixing in the inserting groove, and the barbs 43 are matched with the side walls of the inserting groove for fixing. Preferably the plunger 41 has an interference fit with the socket. In other embodiments, the plug rod 41 may be fixed by glue pouring into the slot.

Preferably, the conductive metal part 40 is T-shaped, and the bottom of the insertion rod 41 extends towards both ends to form a pressing sheet 42 abutting against the breakpoint reset circuit.

Preferably, a conventional on switch is further disposed on the surface of the circuit board 20, and a contact pressing key capable of pressing the conventional on switch is disposed on the upper housing 11.

Further preferably, in a special case, in order to make the conductive metal member 40 return better and faster, a return spring may be disposed on the surfaces of the conductive metal member 40 and the circuit board 20.

Preferably, the bottom of the cavity 12 is provided with a receiving post and hooks located at two sides of the receiving post, the back of the circuit board 20 abuts against the receiving post, and two sides of the circuit board 20 are engaged by the hooks. In other embodiments, the circuit board 20 may be fixed in the cavity 12 by glue.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical scope of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.

Claims

1. A safety plug, comprising:

the circuit board comprises a lower shell (10), wherein an upper shell (11) covers the lower shell (10), the upper shell (11) and the lower shell (10) are enclosed to form a cavity (12), a circuit board (20) is arranged in the cavity (12) upwards, a breakpoint reset circuit is arranged on the surface of the circuit board (20), a through hole (110) is formed in the upper shell (11), and an elastic soft rubber key (30) protruding out of the outer surface of the upper shell (11) is arranged on the through hole (110);

the conductive metal piece (40), the conductive metal piece (40) sets up in cavity (12), the top of conductive metal piece (40) links to each other and can follow elasticity flexible glue button (30) and reciprocate in cavity (12) with elasticity flexible glue button (30), but the in-process that conductive metal piece (40) reciprocated in cavity (12) butt breakpoint reset circuit.

2. A safety plug as claimed in claim 1, wherein:

the bottom of the elastic soft rubber key (30) is provided with a slot, and the top of the conductive metal piece (40) is provided with an inserted rod (41) inserted in the slot.

3. A safety plug as claimed in claim 2, wherein:

barbs (43) used for being fixed in the slots are arranged on two sides of the inserting rod (41).

4. A safety plug as claimed in claim 2 or 3, wherein:

the conductive metal piece (40) is T-shaped, and the bottom of the inserted bar (41) extends towards two ends to form a pressing sheet (42) abutted to the breakpoint reset circuit.

5. A safety plug as claimed in claim 1, wherein:

the surface of the circuit board (20) is also provided with a conventional conduction switch, and the upper shell (11) is provided with a contact pressing key capable of pressing the conventional conduction switch.

6. A safety plug as claimed in claim 1, wherein:

and the surfaces of the conductive metal piece (40) and the circuit board (20) are provided with return springs.

7. A safety plug as claimed in claim 1, wherein:

the bottom of the cavity (12) is provided with a bearing column and clamping hooks positioned at two sides of the bearing column, the back surface of the circuit board (20) is abutted against the bearing column, and two sides of the circuit board (20) are clamped by the clamping hooks.