CN112788840A

CN112788840A - Leakage protection PCB suitable for automatic welding and welding process thereof

Info

Publication number: CN112788840A
Application number: CN202110178058.5A
Authority: CN
Inventors: 马进
Original assignee: Changshu Weichen Electrical Appliance Co ltd
Current assignee: Changshu Weichen Electrical Appliance Co ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-05-11

Abstract

The invention relates to a leakage protection PCB suitable for automatic welding and a welding process thereof, wherein the leakage protection PCB comprises a PCB main body, a positioning hole for clamping and fixing the leakage protection PCB is formed in the middle of the PCB main body, at least two plane pads are arranged on the surface of the PCB, the at least two plane pads comprise a first pad and a second pad which are connected with a lead of a mutual inductor, a jig is adopted to position the PCB main body in the connection process, and a plurality of guide grooves are formed in the position, corresponding to the lead or an input phase line, of the surface of the jig, on the edge of the PCB main body. The welding problem of carrying out automated processing in the earth-leakage protector has been solved to this application, and the processing and production of being convenient for can reduce the cost of labor when improving production efficiency.

Description

Leakage protection PCB suitable for automatic welding and welding process thereof

Technical Field

The invention relates to the technical field of leakage protectors, in particular to a leakage protection PCB suitable for automatic welding and a welding 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.

Therefore, how to adjust the internal structure of the earth leakage protector so as to facilitate automatic welding is a technical problem which needs to be solved urgently at present.

Disclosure of Invention

The invention aims to provide a leakage protection PCB suitable for automatic welding and a welding process thereof, solves the welding problem in automatic machining in a leakage protector, is convenient to machine and produce, and can reduce labor cost while improving production efficiency.

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

the invention provides a leakage protection PCB suitable for automatic welding, which comprises a PCB main body, wherein a positioning hole for clamping and fixing the PCB is formed in the middle of the PCB main body, at least two plane welding pads are arranged on the surface of the PCB, and the at least two plane welding pads comprise a first welding pad and a second welding pad which are connected with a lead of a mutual inductor.

The applicant has further optimisation measures with respect to the above technical problem.

Optionally, the at least two planar pads further include a third pad and a fourth pad, and the third pad and the fourth pad are used for connecting the live wire and the neutral wire, respectively.

Particularly, this application still provides a PCB board welding process is protected to hourglass suitable for automatic weld, is provided with polylith plane pad in the PCB board main part of hourglass guarantor PCB board, corresponding to polylith plane pad is the connecting lead or input phase line respectively, adopts the tool to fix a position and lie in the tool surface and lie in the position that PCB board main part edge set up corresponding to lead wire or input phase line and be provided with a plurality of guide ways to PCB board main part in the connection process.

Optionally, the plurality of planar pads include a first pad and a second pad connected to leads of the transformer.

Optionally, the plurality of planar pads further include a third pad and a fourth pad, and the third pad and the fourth pad are used for connecting the live wire and the neutral wire, respectively.

Further, the tool includes that the surface is provided with positioning groove's tool board main part, a plurality of guide ways set up respectively in the positioning groove border for guide mutual-inductor's lead wire, live wire or zero line.

Furthermore, the surface of the jig plate main body is provided with a limiting block for positioning the mutual inductor, and a lead of the mutual inductor is sent into the positioning groove through the guide groove.

Furthermore, a positioning pin for quickly positioning the PCB main body is arranged in the positioning groove.

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

the leakage protection PCB adopts the plane bonding pad to butt the lead, so that the welding structure is suitable for automatic welding, rapid butt fixing between the phase line and the mutual inductor lead and the PCB can be conveniently realized, automatic welding is conveniently carried out, automatic production of the leakage protection plug can be realized based on the welding process of the leakage protection PCB structure, the input of labor cost is reduced, the manufactured leakage protection plug is better in integrity, and later maintenance is facilitated.

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 diagram of a leakage protection PCB suitable for automated soldering according to one embodiment of the present invention;

fig. 2 is a schematic structural diagram of a jig in a leakage protection PCB welding process suitable for automated welding according to an embodiment of the invention.

Wherein the reference numerals are as follows:

1. the PCB comprises a PCB body 21, a first bonding pad 22, a second bonding pad 23, a third bonding pad 24, a fourth bonding pad 3 and a positioning hole;

4. tool board main part, 5, positioning groove, 51, locating pin, 6, guide way, 7, stopper.

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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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:

this embodiment has described a hourglass and has protected PCB board suitable for automatic weld, as shown in fig. 1, including PCB board main part 1 middle part is seted up the card and is established the locating hole 3 of fixing self usefulness, is provided with two piece at least plane pads on the surface of PCB board, two piece at least plane pads include first pad 21 and the second pad 22 that links to each other with the lead wire of mutual-inductor.

The at least two plane bonding pads further comprise a third bonding pad 23 and a fourth bonding pad 24, and the third bonding pad 23 and the fourth bonding pad 24 are used for being connected with a live wire and a neutral wire respectively.

Example 2:

this embodiment has described a PCB welding process is protected to hourglass suitable for automated welding, as shown in fig. 1, be provided with polylith plane pad on PCB board main part 1 of hourglass guarantor PCB board, correspond to polylith plane pad is the lead wire or the input phase line of connecting respectively, adopts the tool to fix a position PCB board main part 1 and lie in the tool surface and lie in the position that PCB board main part 1 edge corresponds to lead wire or input phase line setting and be provided with a plurality of guide ways 6 at the connection process.

Optionally, the plurality of planar pads include a first pad 21 and a second pad 22 connected to leads of the transformer. The plane pads further comprise a third pad 23 and a fourth pad 24, and the third pad 23 and the fourth pad 24 are used for being connected with a live wire and a neutral wire respectively.

In order to facilitate the quick positioning of the PCB main body 1, as shown in fig. 2, the jig comprises a jig plate main body 4 with a positioning groove 5 arranged on the surface, and a plurality of guide grooves 6 are respectively arranged on the edge of the positioning groove 5 and used for guiding a lead wire, a live wire or a zero wire of a mutual inductor.

The surface of the jig plate main body 4 is provided with a limiting block 7 for positioning the mutual inductor, and a lead of the mutual inductor is sent into the positioning groove 5 through the guide groove 6. In addition, a positioning pin 51 for quickly positioning the PCB main body 1 is disposed in the positioning groove 5.

To sum up, the PCB board is protected to hourglass of this application has adopted the plane pad to come the butt joint lead wire for welded structure is applicable to automated bonding, so can be convenient for realize that the quick butt joint between phase line and mutual-inductor lead wire and PCB inter-plate is fixed and be convenient for carry out automated bonding, based on this welding process who leaks and protect the PCB plate structure, can realize the automated production of earth leakage protection plug, reduce the input of cost of labor, and the earth leakage protection plug wholeness of producing is better, the maintenance in the later stage of being convenient for.

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.

Claims

1. The utility model provides a PCB board is protected to hourglass suitable for automatic change welding, includes PCB board main part, its characterized in that PCB board main part middle part is seted up the card and is established the locating hole of fixed self usefulness, is provided with two piece at least plane pads on the surface of PCB board, two piece at least plane pads include the first pad and the second pad that link to each other with mutual-inductor's lead wire.

2. The leakage protection PCB board suitable for automated soldering of claim 1, wherein the at least two planar pads further comprise a third pad and a fourth pad, the third pad and the fourth pad being for connection to a live wire and a neutral wire, respectively.

3. The utility model provides a leak and protect PCB board welding process suitable for automatic weld, its characterized in that is provided with polylith plane pad in the PCB board main part of leaking the guarantor PCB board, corresponding to polylith plane pad is the connecting lead or input phase line respectively, adopts the tool to fix a position PCB board main part and lie in the tool surface and lie in the position that PCB board main part edge set up corresponding to lead or input phase line and be provided with a plurality of guide ways at the connection.

4. The process of claim 3, wherein the plurality of planar pads comprise a first pad and a second pad connected to leads of a transformer.

5. The leakage protection PCB board welding process suitable for automatic welding of claim 3, wherein the plurality of planar pads further comprises a third pad and a fourth pad, the third pad and the fourth pad are used for connecting a live wire and a neutral wire respectively.

6. The leakage protection PCB welding process suitable for automatic welding according to any one of claims 3 to 5, wherein the jig comprises a jig plate body with a positioning groove arranged on the surface, and the plurality of guide grooves are respectively arranged on the edges of the positioning groove and used for guiding a lead wire, a live wire or a zero wire of the mutual inductor.

7. The leakage protection PCB welding process suitable for automatic welding of claim 6, wherein a limiting block for positioning a mutual inductor is arranged on the surface of the jig plate main body, and a lead of the mutual inductor is fed into the positioning groove through a guide groove.

8. The leakage protection PCB welding process suitable for automatic welding of claim 6, wherein a positioning pin for quickly positioning the PCB main body is arranged in the positioning groove.