Electric pin and electric connecting seat

Abstract

The utility model relates to an electric pin and an electric connecting seat, the electric pin comprises a pin terminal and a conductive wire, the pin terminal comprises a plugging portion and a wiring portion connected to one end of the plugging portion, a side half pair of the wiring portion is processed and forms an inner tangent plane, and a wire core end portion of the conductive wire is transversely welded on the inner tangent plane; according to the electric connecting seat, the electric pin with the structure is applied, the pin terminal is directly connected with the conductive wire rod through welding, the process of connecting the conductive wire rod to the pin terminal can be applied to full-automatic production equipment, the production efficiency can be improved, and the production cost can be reduced after welding. Due to the fact that half of the wiring part is processed, the wire core of the conductive wire cannot protrude out of the outer side of the inserting part, and follow-up integrated injection molding is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of power couplers, in particular to an electric plug and an electric connection seat. Background Art

[0002] Power couplers are commonly used in various electrical appliances, connecting to external power cords to achieve power coupling and transmit power. Patent application number CN201520345492.8 discloses a "power cord embedded injection molded AC input socket." When connecting the conductive wire to the plug terminal, one end of the conductive wire is embedded in the socket, so the conductive wire needs to be pre-connected to the plug terminal. During connection, the conductive wire is first riveted to the first wire terminal, and then the first wire terminal and the plug terminal are connected via rivets. This method of connecting the conductive wire to the plug terminal requires two riveting installation steps, which is inconvenient to install and unsuitable for processing on fully automated production equipment. Therefore, further improvements are needed to the electrical plug and connector. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned existing problems and provide an electrical plug and an electrical connection socket with a simple and reasonable structure.

[0004] An electrical plug includes a plug terminal and a conductive wire. The plug terminal includes a plug portion and a wiring portion connected to one end of the plug portion. The side halves of the wiring portion are processed and form an inner section. The core end of the conductive wire is transversely welded to the inner section.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, at least one side surface of the wiring portion is provided with a notch.

[0007] As a further solution, at least one open recess is provided on the left side, the right side and the end side of the wiring portion.

[0008] As a further solution, a bottom cut surface is provided at one end of the plug-in portion close to the wiring portion, and the core welding point of the conductive wire is separated from the bottom cut surface.

[0009] As a further solution, the width of the plug-in portion is greater than or equal to the width of the wiring portion.

[0010] As a further solution, the plug-in portion is a rectangular columnar structure, and an end of the plug-in portion away from the wiring portion is provided with a head with a four-sided pyramid structure.

[0011] The purpose of the present utility model is to provide an electrical connection socket with a simple and reasonable structure, low cost and light weight.

[0012] The purpose of the present utility model is achieved as follows:

[0013] An electrical connection socket includes a plug socket. An insertion cavity is provided inside the plug socket. It also includes an electrical pin with the above structure. The wiring part of the electrical pin and a section of the conductive wire near the wiring part are integrally formed with the plug socket by injection molding. The insertion part of the electrical pin extends into the insertion cavity.

[0014] As a further scheme, the plug socket includes a top wall part. The wiring part is integrally injection molded inside the top wall part. A section of the conductive wire near the wiring part is integrally injection molded inside the top wall part along a direction perpendicular to the insertion part.

[0015] As a further scheme, two or more electrical pins are connected to the plug socket. When there are three electrical pins, the three electrical pins are connected in a "pin" shape in the insertion cavity; and the length of the insertion part of the middle electrical pin is greater than the lengths of the insertion parts of the other electrical pins.

[0016] As a further scheme, at least two buckle spring arms are integrally connected to the outer side wall on the opposite side of the electrical pin. A retaining sawtooth for cooperating with a buckle interface is provided on the outer end face of the buckle spring arm.

[0017] The beneficial effects of the present utility model are as follows:

[0018] This electrical connection socket uses an electrical pin with this structure. The pin terminal is directly connected to the conductive wire by welding. The process of connecting the conductive wire to the pin terminal can be applied to fully automated production equipment, which can improve production efficiency. After welding, due to the remaining half-width wiring part, the wire core of the conductive wire will not protrude outside the insertion part, which is convenient for subsequent integral injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of an electrical pin before welding in an embodiment of the present utility model.

[0020] Figure 2 It is a schematic diagram of the structure of an electrical pin after welding in an embodiment of the present utility model.

[0021] Figure 3 It is a schematic diagram of the structure of an electrical connection socket in an embodiment of the present utility model.

[0022] Figure 4 It is a schematic diagram of the sectional structure of an electrical connection socket in the present utility model.

[0023] Figure 5 It is a schematic diagram of the structure of the plug socket in the present utility model. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] See also Figure 1 and Figure 2 As shown, an electrical plug includes a pin terminal 1 and a conductive wire 2. The pin terminal 1 includes a plug portion 11 and a wiring portion 12 connected to one end of the plug portion 11. The side half of the wiring portion 12 is processed to form an inner section 121. The end of the core 21 of the conductive wire 2 is horizontally welded to the inner section 121.

[0026] This electrical connector uses an electrical pin of this structure, and the pin terminal 1 is directly connected to the conductive wire 2 by welding. The process of connecting the conductive wire 2 to the pin terminal 1 can be applied to fully automated production equipment, which can speed up production efficiency. After welding, the wire core 21 of the conductive wire 2 will not protrude outside the plug portion 11 due to the half-width of the wiring portion 12 being processed, which facilitates subsequent one-piece injection molding.

[0027] Furthermore, after the core 21 of the conductive wire 2 is welded to the connection portion 12 , the end of the core 21 does not need to be bent, ensuring that the width extension direction of the conductive wire 2 as a whole is consistent with that of the inner section 121 .

[0028] In this embodiment, an open recess 122 is provided on the left side, right side and end side of the wiring portion 12; the open recess 122 helps the wiring portion 12 to absorb glue when it is subsequently injection-molded as a whole with the socket 3, and the connection between the pin terminal 1 and the socket 3 is more firmly established after injection molding.

[0029] An end of the plug portion 11 close to the wiring portion 12 is provided with a bottom cut surface 123 , and the welding point A of the core 21 of the conductive wire 2 is separated from the bottom cut surface 123 (the gap between them is marked as L).

[0030] The width H1 of the plug portion 11 is greater than the width H2 of the wiring portion 12 .

[0031] The plug-in portion 11 is a rectangular columnar structure, and a head 111 with a quadrangular pyramidal structure is provided at one end of the plug-in portion 11 away from the wiring portion 12. The head 111 of this structure has a guiding function, which helps to insert the plug when the appliance is in use.

[0032] An electrical connector, see Figure 3 and Figure 4As shown, it includes a socket 3. An insertion cavity 301 is provided inside the socket 3. It also includes an electrical pin with the above structure. The wiring part 12 of the electrical pin and a section of the conductive wire 2 adjacent to the wiring part 12 are integrally formed with the socket 3 by injection molding. The insertion part 11 of the electrical pin extends into the insertion cavity 301.

[0033] The wiring part 12 and at least part of the conductive wire 2 are integrally injection molded inside the socket 3. Even if the conductive wire 2 is pulled by an external force, the stability of the connection between the end of the wire core 21 and the wiring part 12 is still maintained.

[0034] The socket 3 includes a top wall part 31. The wiring part 12 is integrally injection molded inside the top wall part 31. A section of the conductive wire 2 adjacent to the wiring part 12 is integrally injection molded inside the top wall part 31 along a direction perpendicular to the insertion part 11.

[0035] Two or more electrical pins are connected to the socket 3. When there are three electrical pins, the three electrical pins are connected in a "pin" shape inside the insertion cavity 301. And the length of the insertion part 11 of the middle electrical pin is greater than the length of the insertion parts 11 of the other electrical pins. After injection molding, the pin terminal 1 and the conductive wire 2 are kept in an "L" shape, and the conductive wire 2 is led out from the side of the socket 3, which is convenient for the socket 3 to avoid the movement path of the upper mold base during injection molding.

[0036] When there are three electrical pins, the middle electrical pin is mainly used to connect the ground wire, and the other two electrical pins are respectively used to connect the live wire and the neutral wire.

[0037] See Figure 5 As shown, at least two snap arms 32 are integrally connected to the outer side wall opposite to the electrical pin. A backstop serration 321 for cooperating with a snap interface is provided on the outer end face of the snap arm 32. The electrical connection base is snapped into the snap interface provided in the housing of the electrical appliance by using the snap arm 32, and the backstop serration 321 is used to achieve the backstop function.

[0038] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and equivalents.

Claims

1. An electrical plug, comprising a plug terminal (1) and a conductive wire (2), characterized in that: The pin terminal (1) includes a plug-in portion (11) and a wiring portion (12) connected to one end of the plug-in portion (11). The side half of the wiring portion (12) is processed to form an inner cut surface (121), and the end of the wire core (21) of the conductive wire (2) is horizontally welded to the inner cut surface (121).

2. The electrical plug according to claim 1, wherein: At least one side of the wiring portion (12) is provided with a notch (122).

3. The electrical plug according to claim 2, wherein: At least one open notch (122) is provided on the left side, right side and end side of the wiring portion (12).

4. The electrical plug according to claim 1, wherein: One end of the plug-in portion (11) close to the wiring portion (12) is provided with a bottom cut surface (123), and the welding point of the wire core (21) of the conductive wire (2) is separated from the bottom cut surface (123).

5. The electrical plug according to claim 1, wherein: The width of the plug-in portion (11) is greater than or equal to the width of the wiring portion (12).

6. The electrical plug according to claim 1, wherein: The plug-in portion (11) has a rectangular columnar structure, and one end of the plug-in portion (11) away from the wiring portion (12) is provided with a head (111) having a quadrangular pyramid structure.

7. An electrical connection socket, comprising a socket (3), wherein a socket cavity (301) is provided in the socket (3), characterized in that: It further includes an electrical pin (4) according to any one of claims 1-6. The wiring portion (12) of the electrical pin (4) and a section of the conductive wire (2) close to the wiring portion (12) are integrally formed with the socket (3) by injection molding, and the plug-in portion (11) of the electrical pin (4) extends into the plug-in cavity (301).

8. The electrical connector according to claim 7, characterized in that: The socket (3) includes a top wall portion (31). The wiring portion (12) is integrally injection molded in the top wall portion (31), and a section of the conductive wire (2) close to the wiring portion (12) is integrally injection molded in the top wall portion (31) along a direction perpendicular to the plug-in portion (11).

9. The electrical connector according to claim 7, characterized in that: Two or more electrical pins (4) are connected to the socket (3). When there are three electrical pins (4), the three electrical pins (4) are connected in a "pin" shape in the plug-in cavity (301); and the length of the plug-in portion (11) of the middle electrical pin (4) is greater than the length of the plug-in portions (11) of the remaining electrical pins (4).

10. The electrical connector according to claim 7, characterized in that: At least two snap arms (32) are integrally connected to the outer side wall on the opposite side of the electrical pin (4). The outer end surface of the snap arm (32) is provided with anti-retreat serrations (321) for cooperating with the snap interface.

Images