阅读说明：本技术 漏电保护插头及其组装工艺 (Leakage protection plug and assembly process thereof ) 是由 马进 于 2021-09-09 设计创作，主要内容包括：本发明涉及一种漏电保护插头及其组装工艺,其中漏电保护插头包括底壳、壳盖、机芯、集成线路板、至少两根插片、至少两根弹片,集成线路板包括线路板主体、与线路板主体相连的火零线,插片穿设固定在底壳表面,每根弹片的一端插设于集成线路板处,另一端与插片相接触,机芯整体呈长方体状,底壳内具有卡槽,机芯的内侧卡合在卡槽中,机芯的外侧具有卡合集成线路板的卡爪,其中,漏电保护插头还包括两个限位块,两个限位块分别设置于机芯或者底壳的左右两侧,限位块的外侧面开设有用于卡接固定弹片的限位槽。本申请结构紧凑,采用模块化设计,便于加工和生产,能够在提高生产效率的同时,降低人工成本。(The invention relates to an electric leakage protection plug and an assembly process thereof, wherein the electric leakage protection plug comprises a bottom shell, a shell cover, a machine core, an integrated circuit board, at least two inserting pieces and at least two elastic pieces, the integrated circuit board comprises a circuit board main body and a fire and zero line connected with the circuit board main body, the inserting pieces are fixedly arranged on the surface of the bottom shell in a penetrating way, one end of each elastic piece is inserted into the integrated circuit board, the other end of each elastic piece is contacted with the inserting pieces, the whole machine core is in a cuboid shape, a clamping groove is formed in the bottom shell, the inner side of the machine core is clamped in the clamping groove, clamping claws for clamping the integrated circuit board are arranged on the outer side of the machine core, the two limiting blocks are respectively arranged on the left side and the right side of the machine core or the bottom shell, and limiting grooves for clamping and fixing the elastic pieces are formed in the outer side faces of the limiting blocks. This application compact structure adopts the modularized design, and the processing and production of being convenient for can reduce the cost of labor when improving production efficiency.)

1. The utility model provides an earth leakage protection plug, its characterized in that, includes drain pan, cap, core, integrated circuit board, two piece at least inserted sheets, two piece at least shell fragments, and integrated circuit board includes circuit board main part, the fire zero line that links to each other with the circuit board main part, the drain pan constitutes plug housing with the cap lock together, sets up the jack of wearing to establish fixed inserted sheet usefulness on the drain pan, the core wholly is the cuboid form, the draw-in groove has in the drain pan, the inboard block of core is in the draw-in groove, the outside of core has the jack catch of block integrated circuit board, and the one end of every shell fragment is inserted and is located integrated circuit board department, the other end contacts with the inserted sheet two spacing grooves have been seted up on the drain pan, two spacing grooves set up in the left and right sides of draw-in groove, the shell fragment card is established the spacing inslot.

2. An earth leakage protection plug as claimed in claim 1, wherein the resilient tab is L-shaped, and a cylindrical protruding limiting portion is formed at a bent portion of the resilient tab, and the protruding limiting portion is engaged with the limiting groove.

3. An assembly process of an earth leakage protection plug, wherein the earth leakage protection plug adopts the structure as claimed in claim 1 or 2, and the assembly process comprises the following steps:

step S1: inserting each inserting piece into an inserting hole formed in the bottom shell respectively;

step S2: clamping the machine core into a clamping groove of the bottom shell;

step S3: inserting the two spring plates into the limit grooves on the bottom shell respectively;

step S4: and inserting a positioning hole on the integrated circuit board into a clamping jaw on the machine core, and clamping one end part of the elastic sheet by a slot arranged on the integrated circuit board.

4. The assembly process of claim 3, wherein the bare copper wire at the end of the live wire and the neutral wire is directly connected to the board surface of the integrated circuit board, and the live wire and the neutral wire are electrically connected to the elastic piece.

5. The utility model provides an earth leakage protection plug, its characterized in that, includes drain pan, cap, core, integrated circuit board, two piece at least inserted sheets, two piece at least shell fragments, and integrated circuit board includes circuit board main part, the fire zero line that links to each other with circuit board main part, the drain pan constitutes plug housing with the cap lock together, sets up the jack of wearing to establish fixed inserted sheet usefulness on the drain pan, the core wholly is the cuboid form, the draw-in groove has in the drain pan, the inboard block of core is in the draw-in groove, the outside of core has the jack catch of block integrated circuit board the left and right sides of core respectively with only the stopper, the spacing groove has been seted up to the lateral surface of stopper, and the one end of every shell fragment is inserted and is located integrated circuit board department, the other end contacts with the inserted sheet, the shell fragment card is established the spacing inslot.

6. An earth leakage protection plug as claimed in claim 1, wherein the resilient tab is L-shaped, and a cylindrical protruding limiting portion is formed at a bent portion of the resilient tab, and the protruding limiting portion is engaged with the limiting groove.

7. An assembly process of an earth leakage protection plug, wherein the earth leakage protection plug adopts the structure as claimed in claim 1 or 2, and the assembly process comprises the following steps:

step L1: inserting the two spring plates into the limiting grooves of the limiting block on the machine core respectively;

step L2: inserting a positioning hole on the integrated circuit board into a clamping jaw on the machine core, and clamping an end part of one end of the elastic sheet by a slot formed on the integrated circuit board;

step L3: inserting each inserting piece into an inserting hole formed in the bottom shell respectively;

step L4: and clamping the movement with the assembled spring plate and the integrated circuit board into the clamping groove of the bottom shell.

8. An assembly process of a leakage protection plug according to claim 7, wherein the bare copper wire at the end of the live wire and the neutral wire is directly connected to the board surface of the integrated circuit board, and the live wire and the neutral wire are electrically connected to the elastic piece.

Technical Field

The invention relates to the technical field of circuit devices and production and manufacturing thereof, in particular to a leakage protection plug and an assembly process thereof.

Background

The leakage protector, called leakage breaker for short, is mainly used for protecting the electric shock of human body with fatal danger when the equipment has leakage fault, has the functions of overload and short circuit protection, can be used for protecting the overload and short circuit of a circuit or a motor, and can also be used for the infrequent switching and starting of the circuit under normal conditions. However, the existing earth leakage protector has a complex structure, is loose in structure, is inconvenient to assemble, is difficult to process through automatic equipment during production, and does not conform to the development trend of the existing automatic production.

Especially, butt joint installation of the power transmission line and the leakage protection plug is a difficult problem which cannot be avoided, once the power transmission line is installed in production, a larger storage space is occupied, storage difficulty is brought, and the power transmission line is not installed, and the power transmission line is difficult to leave a factory and assemble in a later period, so that the technical problem which needs to be solved urgently at present is how to improve the structure of the leakage protection plug.

The elastic sheet is fixed in the leakage protection plug, and the existing structure mostly adopts a mode of fixing by welding or injection molding, so that the production and the preparation are difficult, and the difficulty is brought to the automatic processing.

Disclosure of Invention

The invention aims to provide an electric leakage protection plug and an assembling process thereof, wherein the electric leakage protection plug is compact in structure, adopts a modular design, optimizes the installation structure of a live wire and a neutral wire, is convenient to process and produce during assembling, and can reduce labor cost while improving production efficiency no matter manual assembling or mechanical automatic assembling.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention provides an electric leakage protection plug which comprises a bottom shell, a shell cover, a machine core, an integrated circuit board, at least two inserting pieces and at least two elastic pieces, wherein the integrated circuit board comprises a circuit board main body and a live line and a zero line connected with the circuit board main body, the bottom shell and the shell cover are buckled together to form a plug shell, a jack for fixing the inserting pieces in a penetrating mode is formed in the bottom shell, the whole machine core is in a cuboid shape, a clamping groove is formed in the bottom shell, the inner side of the machine core is clamped in the clamping groove, a clamping jaw for clamping the integrated circuit board is arranged on the outer side of the machine core, one end of each elastic piece is inserted into the integrated circuit board, the other end of each elastic piece is in contact with the inserting pieces, two limiting grooves are formed in the bottom shell, the two limiting grooves are formed in the left side and the right side of the clamping groove, and the elastic pieces are clamped in the limiting grooves.

Furthermore, the elastic sheet is L-shaped as a whole, a columnar protruding limiting part is formed at the bending part of the elastic sheet, and the protruding limiting part is clamped in the limiting groove.

The earth leakage protection plug with the structure comprises the following steps when being assembled:

step S1: inserting each inserting piece into an inserting hole formed in the bottom shell respectively;

step S2: clamping the machine core into a clamping groove of the bottom shell;

step S3: inserting the two spring plates into the limit grooves on the bottom shell respectively;

step S4: inserting a positioning hole on the integrated circuit board into a clamping jaw on the machine core, and clamping an end part of one end of the elastic sheet by a slot formed on the integrated circuit board; .

Further, a bare copper wire at the end part of the live wire and the neutral wire in the integrated circuit board is directly connected with the board surface of the circuit board main body, and the live wire and the neutral wire are in conductive connection with the elastic sheet.

The invention further provides an electric leakage protection plug which comprises a bottom shell, a shell cover, a machine core, an integrated circuit board, at least two inserting pieces and at least two elastic pieces, wherein the integrated circuit board comprises a circuit board main body and a live line and a neutral line connected with the circuit board main body, the bottom shell and the shell cover are buckled together to form a plug shell, a jack used for fixing the inserting pieces in a penetrating mode is formed in the bottom shell, the whole machine core is of a cuboid shape, a clamping groove is formed in the bottom shell, the inner side of the machine core is clamped in the clamping groove, clamping claws used for clamping the integrated circuit board are arranged on the outer side of the machine core, the left side and the right side of the machine core are respectively provided with only limiting blocks, limiting grooves are formed in the outer side faces of the limiting blocks, one end of each elastic piece is inserted into the integrated circuit board, the other end of each elastic piece is in contact with the inserting pieces, and the elastic pieces are clamped in the limiting grooves.

Furthermore, the elastic sheet is L-shaped as a whole, a columnar protruding limiting part is formed at the bending part of the elastic sheet, and the protruding limiting part is clamped in the limiting groove.

The earth leakage protection plug with the structure comprises the following steps when being assembled: :

step L1: inserting the two spring plates into the limiting grooves of the limiting block on the machine core respectively;

step L2: inserting a positioning hole on the integrated circuit board into a clamping jaw on the machine core, and clamping an end part of one end of the elastic sheet by a slot formed on the integrated circuit board;

step L3: inserting each inserting piece into an inserting hole formed in the bottom shell respectively;

step L4: and clamping the movement with the assembled spring plate and the integrated circuit board into the clamping groove of the bottom shell.

Further, a bare copper wire at the end part of the live wire and the neutral wire in the integrated circuit board is directly connected with the board surface of the circuit board main body, and the live wire and the neutral wire are in conductive connection with the elastic sheet.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

according to the leakage protection plug and the assembly process thereof, a modular structural design is adopted, and meanwhile, the end of the live wire and the zero wire are directly welded and fixed with the integrated circuit board, so that the assembly is more convenient in the early stage and the later stage, the automatic welding is more convenient, the automatic production of the leakage protection plug is convenient to realize, the input of labor cost is reduced, the integrity of the manufactured leakage protection plug is better, and the maintenance in the later stage is convenient. In addition, based on specially designed's modular structure, the earth leakage protection plug of this application no matter be manual assembly or mechanical automation's equipment, all can be when improving production efficiency, reduce the cost of labor.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural diagram of a leakage protection plug according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an internal structure of the earth leakage protection plug in a state where the integrated circuit board is removed according to an embodiment of the present invention;

fig. 3 is a schematic diagram of the internal structure of the earth leakage protection plug according to another embodiment of the present invention in a state where the integrated circuit board is removed.

Wherein the reference numerals are as follows:

1. a bottom shell 11 and a clamping groove;

2. a shell cover;

3. a movement 31, a claw;

4. the integrated circuit board comprises an integrated circuit board 41, positioning holes 42, a circuit board main body 43, live wires, zero wires 44 and slots in the circuit board main body;

5. inserting sheets;

6. a spring plate 61 and a protrusion limiting part;

7. a limiting block 71 and a limiting groove.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1:

the embodiment describes a leakage protection plug installed in a modularized manner, as shown in fig. 1, which includes a bottom case 1, a case cover 2, a core 3, an integrated circuit board 4, at least two inserting pieces 5, and at least two elastic pieces 6, where the integrated circuit board 4 includes a circuit board main body 42 and a live wire line 43 connected to the circuit board main body 42, the inserting pieces 5 are fixed on the surface of the bottom case 1 in a penetrating manner, one end of each elastic piece 6 is inserted into the circuit board main body 42 of the integrated circuit board 4, and the other end of each elastic piece contacts with the inserting piece 5, a slot 44 formed in the circuit board main body 42 of the integrated circuit board 4 is clamped to an end of the elastic piece, the core 3 is integrally rectangular, a slot 11 is formed in the bottom case 1, the inner side of the core 3 is clamped in the slot 11, and the outer side of the core 3 is provided with a claw 31 for clamping the integrated circuit board 4, where,

as shown in fig. 3, two limiting grooves 71 are formed in the bottom case 1, the two limiting grooves 71 are disposed on the left and right sides of the slot 11, and the elastic sheet 6 is clamped in the limiting grooves 71.

The end of live and neutral wires 43 (including two independently arranged wires of the neutral wire and the live wire) is directly connected with the surface of the integrated circuit board 4, the live and neutral wires 43 can be arranged in a structure as shown in fig. 1, holes are formed in the integrated circuit board 4, then the bare copper wires at the end of the live and neutral wires are inserted into the holes formed in the integrated circuit board 4, and then the live and neutral wires 43 are electrically connected with the elastic pieces 6. Or, the live wire and the neutral wire 43 are welded on the surface of the integrated circuit board, and then the live wire and the neutral wire 43 are electrically connected with the elastic sheet 6.

The live wire and the neutral wire 43 can be electrically connected with the elastic sheet 6 by arranging a copper foil substrate on the surface of the integrated circuit board 4, and then welding the corresponding elastic sheet 6 and the live wire and the neutral wire 43 on the uniform copper foil substrate, so that the conduction between the two is realized, and the electric connection can also be carried out by adopting a wire connection mode.

The elastic sheet 6 is L-shaped as a whole, a columnar protruding limiting part 61 is formed at the bending part of the elastic sheet 6, and the protruding limiting part 61 is clamped in the limiting groove 71. The whole spring plate 6 is a copper strip copper plate, and is bent for several times to form an L shape, but the bent position of the L-shaped spring plate 6 is bent for three times, so that a structure with three right-angle bends is formed, namely, the bent protruding limiting part 61 is a cuboid structure, and the limiting groove 71 is a square hole, so that the protruding limiting part 61 is clamped in the limiting groove 71 and transition fit can be realized.

Specifically, for the fixation between the integrated circuit board 4 and the movement 3, two positioning through holes 41 are formed in the integrated circuit board 4, two claws 31 are oppositely arranged on the outer side of the movement 3, both claws 31 have elasticity, and the two claws 31 are respectively clamped in the positioning through holes 41. To further illustrate the claws 31 and the ic board 4, the tops of the claws 31 have flanges for retaining the ic board 4.

Based on the structure of the leakage protection plug of the embodiment, the process steps during assembly are as follows:

step S1: inserting each insert 5 into an insertion hole formed in the bottom shell 1 respectively;

step S2: clamping the machine core into a clamping groove of the bottom shell;

step S3: inserting the two spring plates into the limit grooves on the bottom shell respectively;

step S4: the integrated circuit board 4 comprises a circuit board main body 42 and a live wire and neutral wire 43 connected with the circuit board main body 42, a positioning hole 41 in the circuit board main body 42 of the integrated circuit board 4 is inserted into a clamping claw 31 on the movement, and a slot 44 formed in the circuit board main body 42 of the integrated circuit board 4 is clamped with one end part of the elastic sheet.

Further, a bare copper wire at the end of the live wire and neutral wire 43 in the integrated circuit board 4 is directly connected with the board surface of the circuit board main body 4, and the live wire and neutral wire and the spring plate 6 form conductive connection.

When the outside wiring of needs equipment, only need pass through fastening structure such as nut bolt with outside wiring and make the external connection wire be connected with the naked copper line of the end of live wire zero line 43 and ground wire in the integrated circuit board, just can realize the external connection of this product earth leakage protection plug rapidly, convenience of customers operates, effectively improves the maneuverability of product, reduces operating personnel's professional requirement.

Example 2:

the embodiment describes a leakage protection plug installed in a modularized manner, as shown in fig. 1, the leakage protection plug includes a bottom case 1, a case cover 2, a core 3, an integrated circuit board 4, at least two insertion pieces 5, and at least two elastic pieces 6, the integrated circuit board includes a circuit board main body and a live wire and a neutral wire connected with the circuit board main body, the insertion pieces 5 are fixed on the surface of the bottom case 1 in a penetrating manner, one end of each elastic piece 6 is inserted into the integrated circuit board 4, the other end of each elastic piece 6 contacts with the insertion piece 5, the core 3 is integrally rectangular, a clamping groove 11 is arranged in the bottom case 1, the inner side of the core 3 is clamped in the clamping groove 11, a clamping claw 31 for clamping the integrated circuit board 4 is arranged on the outer side of the core 3, wherein,

as shown in fig. 2, the leakage protection plug further includes two limiting blocks 7, the two limiting blocks 7 are respectively disposed on the left and right sides of the movement 3, and a limiting groove 71 for clamping and fixing the elastic sheet 6 is disposed on the outer side surface of the limiting block 7.

The end of live and neutral wires 43 (including two independently arranged wires of the neutral wire and the live wire) is directly connected with the surface of the integrated circuit board 4, the live and neutral wires 43 can be arranged in a structure as shown in fig. 1, holes are formed in the integrated circuit board 4, then the bare copper wires at the end of the live and neutral wires are inserted into the holes formed in the integrated circuit board 4, and then the live and neutral wires 43 are electrically connected with the elastic pieces 6. Or, the live wire and the neutral wire 43 are welded on the surface of the integrated circuit board, and then the live wire and the neutral wire 43 are electrically connected with the elastic sheet 6.

The live wire and the neutral wire 43 can be electrically connected with the elastic sheet 6 by arranging a copper foil substrate on the surface of the integrated circuit board 4, and then welding the corresponding elastic sheet 6 and the live wire and the neutral wire 43 on the uniform copper foil substrate, so that the conduction between the two is realized, and the electric connection can also be carried out by adopting a wire connection mode.

The elastic sheet 6 is L-shaped as a whole, a columnar protruding limiting part 61 is formed at the bending part of the elastic sheet 6, and the protruding limiting part 61 is clamped in the limiting groove 71. The whole spring plate 6 is a copper strip copper plate, and is bent for several times to form an L shape, but the bent position of the L-shaped spring plate 6 is bent for three times, so that a structure with three right-angle bends is formed, namely, the bent protruding limiting part 61 is a cuboid structure, and the limiting groove 71 is a square hole, so that the protruding limiting part 61 is clamped in the limiting groove 71 and transition fit can be realized.

Specifically, for the fixation between the integrated circuit board 4 and the movement 3, two positioning through holes 41 are formed in the integrated circuit board 4, two claws 31 are oppositely arranged on the outer side of the movement 3, both claws 31 have elasticity, and the two claws 31 are respectively clamped in the positioning through holes 41. To further illustrate the claws 31 and the ic board 4, the tops of the claws 31 have flanges for retaining the ic board 4.

Based on the structure of the leakage protection plug of the embodiment, the process steps during assembly are as follows:

step L1: inserting the two spring pieces 6 into the limiting grooves 71 of the limiting blocks 7 on the machine core 3 respectively;

step L2: the integrated circuit board 4 comprises a circuit board main body 42 and a live wire and zero wire 43 connected with the circuit board main body 42, a positioning hole 41 on the circuit board main body 2 of the integrated circuit board 4 is inserted into a clamping jaw 31 on the movement 3, and a slot formed on the integrated circuit board 4 is clamped with one end part of the elastic sheet;

step L3: inserting each insert 5 into an insertion hole formed in the bottom shell 1 respectively;

step L4: and clamping the movement 3 with the assembled spring plate 6 and the integrated circuit board 4 into the clamping groove 11 of the bottom shell 1.

Further, the bare copper wire at the end of the live wire and neutral wire 43 in the integrated circuit board 4 is directly connected to the board surface of the circuit board main body 42, and the live wire and neutral wire 43 and the spring plate 6 are electrically connected.

When the outside wiring of needs equipment, only need pass through fastening structure such as nut bolt with outside wiring and make the external connection wire be connected with the bare copper line of the tip of live wire zero line 43 and ground wire, just can realize the external connection of this product earth leakage protection plug rapidly, convenience of customers operates, effectively improves the maneuverability of product, reduces operating personnel's professional requirement.

In summary, the leakage protection plug with the modularized installation adopts the modularized structural design, and meanwhile, the end of the live wire 43 is directly welded and fixed with the circuit board main body 42, so that the assembly in the early stage or the later stage is more convenient, the automatic welding is more convenient, the automatic production of the leakage protection plug is convenient to realize, the input of labor cost is reduced, the manufactured leakage protection plug has better integrity, and the maintenance in the later stage is convenient. In addition, based on specially designed's modular structure, the earth leakage protection plug of this application no matter be manual assembly or mechanical automation's equipment, all can be when improving production efficiency, reduce the cost of labor.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.