CN212517671U

CN212517671U - Novel leakage protection plug

Info

Publication number: CN212517671U
Application number: CN202021692125.2U
Authority: CN
Inventors: 吴志荣; 赵克苏
Original assignee: Yueqing Andwell Electrical Co ltd
Current assignee: Yueqing Andwell Electrical Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-02-09
Anticipated expiration: 2030-08-14

Abstract

The utility model relates to a novel leakage protection plug, it includes casing, reset button mounting bracket, and the circuit board is equipped with the installation position that is used for placing tripping device in the mounting bracket, and the both sides of mounting bracket one end are equipped with the movable contact piece installation position that is used for placing the movable contact piece, and the both sides that correspond the other end of mounting bracket in the casing are equipped with the static contact installation position that is used for placing the static contact, tripping device includes trip coil, iron core, locking plate and contact preforming, and reset button's bottom is equipped with the locked groove, reset button passes the circuit board and with the locking plate constitutes spacing cooperation, the one end front side that the mounting bracket corresponds movable contact piece installation position is equipped with mutual inductor, mutual inductor's front end is equipped with the inlet wire chamber, the casing is located the bottom downwardly extending of mounting bracket and forms the. The circuit board is arranged above the tripping mechanism, and the movable contact piece and the fixed contact are respectively arranged on two sides of the mounting frame, so that the internal structure is more compact.

Description

Novel leakage protection plug

Technical Field

The utility model relates to a plug field, concretely relates to novel earth leakage protection plug.

Background

With the increasing popularization of industrial production facilities and equipment and household appliances, people have more and more chances of electrically contacting, and the situation that electric shock casualties occur due to faults of electric equipment is caused. For personal safety and equipment safety, the earth leakage protector has been widely used as an effective electrical safety technical device and plays a very important role. Based on the principle of a leakage protector, in order to protect users better, a leakage protection plug is configured in many products at present, and when electric equipment connected with the leakage protection plug leaks electricity, the leakage protection plug can automatically cut off a power supply within dozens of milliseconds, so that the users are prevented from being damaged by electric shock, and the life safety of the users is protected.

The existing leakage protection plug mainly comprises a shell and a plug pin inserted in the shell, wherein a control panel and a movable contact spring are arranged in the shell, the movable contact spring is connected with a power line and then installed on the shell, and the movable contact spring on the movable contact spring corresponds to a fixed contact on a plug pin.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a novel earth leakage protection plug.

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

a novel leakage protection plug comprises a shell, wherein a reset button is arranged on the shell, a mounting frame is arranged in the shell, a circuit board is arranged above the mounting frame, a mounting position for placing a tripping mechanism is arranged in the mounting frame, the tripping mechanism is electrically connected with the circuit board, movable contact mounting positions for placing movable contacts are arranged on two sides of one end of the mounting frame, static contact mounting positions for placing static contacts are arranged on two sides of the shell corresponding to the other end of the mounting frame, the tripping mechanism comprises a tripping coil, an iron core sleeved in the tripping coil, a locking plate and a contact pressing plate, the locking plate is arranged in a linkage mode with the iron core, a locking groove is arranged at the bottom of the reset button, the reset button penetrates through the circuit board and forms limiting fit with the locking plate, two sides of the contact pressing plate respectively extend to form arms, the movable contact is arranged on, the contact pressing sheet drives the contact pressing sheet to be electrically connected with the fixed contact, a mutual inductor is arranged on the front side of one end, corresponding to the movable contact mounting position, of the mounting frame, an incoming line cavity is formed in the front end of the mutual inductor, and the shell is located at the bottom of the mounting frame and extends downwards to form a cavity used for embedding the European standard plug.

And a wiring terminal is arranged in the wire inlet cavity.

And the circuit board is provided with a test button.

The circuit board is provided with a plurality of bayonets, and the mounting bracket is correspondingly provided with a buckle.

The casing surface is equipped with two at least buttons, be equipped with the support frame between circuit board and the shells inner wall, the button contacts with test button and reset button respectively, just the both ends of button are inlayed and are established in the casing and by the support frame press against in on the shells inner wall.

And a plurality of sealing structures are arranged between the button and the inner wall of the shell.

The mounting frame is matched with the shell in a clamping mode.

The utility model has the advantages that: the circuit board is arranged above the tripping mechanism, the movable contact piece and the fixed contact are respectively arranged on two sides of the mounting frame, so that the internal structure is more compact, the European standard plug is embedded in the bottom of the shell, the space is formed between the shell and the mounting frame, and the separation between the shell and the mounting frame is realized through the connection of a wiring harness between the shell and the mounting frame.

Drawings

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

Fig. 2 is a schematic cross-sectional view of the present invention.

Fig. 3 is an explosion diagram of the shell of the present invention.

Fig. 4 is a schematic view of the interior of the housing.

Fig. 5 is a schematic structural view in which the inside of the case and the circuit board are omitted.

Fig. 6 is a schematic structural view of the mounting bracket.

Fig. 7 is a schematic structural view of the support frame.

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 efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in the figure, a novel leakage protection plug comprises a shell 1, wherein a reset button 2 is arranged on the shell, a mounting frame is arranged in the shell, a circuit board 3 is arranged above the mounting frame, a mounting position for placing a tripping mechanism is arranged in the mounting frame, the tripping mechanism is electrically connected with the circuit board, movable contact mounting positions 23 for placing movable contacts 21 are arranged on two sides of one end of the mounting frame, static contact mounting positions 17 for placing static contacts are arranged on two sides of the other end of the mounting frame in the shell, the tripping mechanism comprises a tripping coil, a locking plate 6 and a contact pressing plate 24, the iron core 5 and the iron core are sleeved in the tripping coil in a linkage mode, the tripping coil is wound on a coil framework 4, a locking groove is arranged at the bottom of the reset button, the locking plate is arranged in an approximate 7 shape, and U-shaped bayon, one end is in linkage fit with the iron core, and the other end is used for being matched with the locking groove of the reset button. Reset button passes the circuit board and with the locking plate constitutes spacing cooperation, contact preforming both sides extend respectively and form the arm, the movable contact piece sets up on the arm, and by the contact preforming drives and constitutes the electricity with the static contact and be connected, be formed with opening 241 on the arm, this opening and the width looks adaptation of movable contact piece utilize the opening to realize the location to the movable contact piece, the accuracy when guaranteeing to drive its and static contact 16 closure, the one end front side that the mounting bracket corresponds movable contact installation position is equipped with mutual inductor, mutual inductor 20's front end is equipped with the inlet wire chamber, the bottom downwardly extending formation that the casing is located the mounting bracket is used for inlaying the cavity 13 of establishing European standard plug 7, the upper end of this cavity by the mounting bracket is kept apart.

Meanwhile, the wire inlet cavity is composed of an independent wire inlet shell 14, the shell comprises an upper shell 11 and a lower shell 12, the area of the wire inlet shell added to the lower shell is matched with that of the upper shell, the lower shell and the wire inlet shell are clamped, namely, sliding grooves 15 are formed in two sides of the lower shell, one end of the wire inlet shell is embedded in the sliding grooves and is fixed with the upper shell through screws, and therefore the whole shell is installed and fixed, a wiring terminal 19 is arranged in the wire inlet cavity formed by the wire inlet shell, the design of a plug without fixed connecting wires can be achieved through the connection mode of the wiring terminal, meanwhile, the plug can be directly electrically connected with an internal movable contact piece or a static contact through a wiring harness, and the design form of the wiring harness is achieved.

And the circuit board is provided with a test button 8 for electric leakage test.

Be equipped with a plurality of bayonets on the circuit board, the mounting bracket correspondence is equipped with buckle 22, utilizes circuit board and mounting bracket looks card fixed for both are a whole, have guaranteed its fixed fastness in the casing, have saved the loaded down with trivial details nature that adopts the screw fixed circuit board simultaneously.

The casing surface is equipped with two at least buttons 9, be equipped with support frame 10 between circuit board and the shells inner wall, the button contacts with test button and reset button respectively, just the both ends of button are inlayed and are established in the casing and by the support frame press against in on the shells inner wall. The external button is directly contacted with a test button or a reset button on the circuit board to realize the control between the external button and the test button or the reset button, and the button is made of soft materials such as silica gel or rubber.

Be equipped with a plurality of seal structure between button and the shells inner wall, correspond the strengthening rib of test button or reset button's through-hole circumference on the strengthening rib 25 and the support frame that correspond through-hole circumference through setting up at shells inner wall, realize the sealing process to button circumference extension structure, improved the water-proof effects of plug.

The mounting bracket with the cooperation of casing joint, it is fixed to utilize the mode of buckle, saves the use of inside screw, and can guarantee the fixed reliability of whole mounting bracket between the casing, reduces the assembly step simultaneously, improves production efficiency.

The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. A novel leakage protection plug is characterized in that: the device comprises a shell, wherein a reset button is arranged on the shell, a mounting frame is arranged in the shell, a circuit board is arranged above the mounting frame, a mounting position for placing a tripping mechanism is arranged in the mounting frame, the tripping mechanism is electrically connected with the circuit board, movable contact mounting positions for placing movable contacts are arranged on two sides of one end of the mounting frame, fixed contact mounting positions for placing fixed contacts are arranged on two sides of the other end of the mounting frame in the shell, the tripping mechanism comprises a tripping coil, an iron core sleeved in the tripping coil, a locking plate and a contact pressing plate, the locking plate is arranged in linkage with the iron core, a locking groove is arranged at the bottom of the reset button, the reset button penetrates through the circuit board and forms limit fit with the locking plate, two sides of the contact pressing plate respectively extend to form arms, the movable contact is arranged on the arm and is driven by the contact pressing plate, the front side of one end of the mounting frame corresponding to the movable contact piece mounting position is provided with a mutual inductor, the front end of the mutual inductor is provided with an incoming line cavity, and the bottom of the shell positioned on the mounting frame extends downwards to form a cavity used for embedding the European standard plug.

2. A novel earth leakage protection plug as claimed in claim 1, wherein: and a wiring terminal is arranged in the wire inlet cavity.

3. A novel earth leakage protection plug as claimed in claim 1, wherein: and the circuit board is provided with a test button.

4. A novel earth leakage protection plug as claimed in claim 1, wherein: the circuit board is provided with a plurality of bayonets, and the mounting bracket is correspondingly provided with a buckle.

5. A novel earth leakage protection plug as claimed in claim 3, wherein: the casing surface is equipped with two at least buttons, be equipped with the support frame between circuit board and the shells inner wall, the button contacts with test button and reset button respectively, just the both ends of button are inlayed and are established in the casing and by the support frame press against in on the shells inner wall.

6. A novel earth leakage protection plug as claimed in claim 5, wherein: and a plurality of sealing structures are arranged between the button and the inner wall of the shell.

7. A novel earth leakage protection plug as claimed in claim 1, wherein: the mounting frame is matched with the shell in a clamping mode.