KR200390491Y1 - Plug for adapter with integrated terminal - Google Patents

Abstract

The present invention relates to an adapter plug having a terminal integrally formed, the rear portion is fastened to the plug mounting portion of the charger adapter having a plug mounting portion on the outer side and the front portion is connected to the outlet to enable charging for the adapter A plug, characterized in that it comprises a terminal case and a pair of bent rod-shaped terminals which are injection molded together with the terminal covering layer integrally with the terminal case.

Therefore, in particular, by injecting a rod-shaped terminal bent at a predetermined angle into the terminal case integrally in one mold at a time, assembly parts are not generated, so that the terminal is firmly formed without a flow of the terminal even after repeated insertion and disconnection for a long time. Since the assembly parts are not generated and simplified, the cost competitiveness is excellent by reducing the mold investment cost and the molding material cost.

Description

PLUG FOR ADAPTER WITH INTEGRATED TERMINAL}

The present invention relates to a plug for an adapter in which a terminal is formed integrally. More specifically, the terminal case and a pair of bent rod-shaped terminals are integrally injection-molded so that an assembly process is not required and manufacturing cost is reduced. The present invention relates to a plug for an adapter in which a terminal is integrally formed, which is reduced and maintained without flow even when the terminal is repeatedly inserted and removed for a long time.

In general, an electronic device such as a mobile phone and a PDA charger or a cordless phone uses a low voltage, and thus an adapter having an inductor is used, and a plug mounting part is provided at an external side of the adapter to fix or fold the plug. When charging a charger or the like or using a wireless telephone, a plug connected to an adapter connected to the mobile phone charger is inserted into an outlet and used to apply external power.

1 is an exploded perspective view showing the conventional plug for the adapter disassembled, Figure 2 is a cross-sectional view showing a fastening structure of a conventional adapter plug and adapter.

1 and 2, the plug 70 fastened to the conventional adapter 160 is formed in accordance with the terminal case 80, the terminal 90, and the terminal to be fastened to the terminal case. It consists of a terminal fixture 100 that is assembled to 110.

That is, the conventional adapter plug 70 has three assembly parts, that is, a terminal case 80 injection molded in a separate mold (not shown), and a terminal integrally injection molded into the terminal 90 in a separate mold. Fixture 100, a structure consisting of a fastening bolt 110 for fastening the terminal fixture to the terminal case.

The terminal case 80 has a terminal protrusion hole 81 in which the front end portion 91 of the terminal is inserted and fixed at the front surface thereof, and the main flange fastening groove 166 of the adapter 160 is formed at the lower flange portion 82. A fastening jaw 83 and a fastening protrusion 84 are formed to be fastened to the bolt fastening protrusion 85a for fastening the terminal fastener to the fastening bolt on the inner fastening portion 85.

The terminal fixture 100 has an insertion flange 101 which is inserted into and fixed to the terminal protrusion hole 81 of the terminal case 80 at the center front, and has a larger outer diameter than the terminal protrusion hole at the rear thereof. A fastening housing 104 having a bolt fastening hole 103 for fastening with a fastening bolt to the terminal case is formed between the fixed flange 102 and the pair of terminal rear ends 92 which are fixed to the inner surface by an interview. On both sides of the terminal rear end portion 92 protruding backward, the terminal case 80 and the plug mounting portion 161 of the adapter 160 are assembled, respectively, while the terminal front end 91 is repeatedly inserted and removed from the outlet. In order to prevent the flow generated even after the guide projection 105 is inserted into the terminal guide insertion groove 163 on both sides of the terminal insertion hole 162 of the plug mounting portion 161 is formed to extend long in the rear.

However, as described above, the conventional adapter plug 70 is composed of three assembly parts 80, 100, and 110, and the assembly parts must be molded and then used after the assembling process. It requires a mold (not shown) of the mold, which requires a lot of mold cost, and requires quality control for each assembly part (80, 100, 110), which requires a lot of quality control costs, and assembly personnel according to manual assembly. There was a problem in that the reliability of the quality for the finished product 70 was reduced while the assembly time and assembly manpower costs are required.

In addition, since the terminal fastener 100 is assembled to the terminal case 80 by the fastening bolt 110, the terminal front end 91 is repeatedly inserted into and removed from the outlet (not shown). Molding material to prevent the flow from occurring in the fastening portion 85, that is, the molding material is applied to the insertion flange 101 and the fixed flange 102 of the front portion, the molding material in the bolt housing 104 of the central portion It takes a long time, because the molding material has to take a long time to the guide projection 105 extending to the rear of the lower portion of the terminal fixture 100 fixed to the adapter, there was a problem that the cost of the molding material made of a non-conductive synthetic resin material .

Therefore, by forming the terminals integrally in the terminal case, there is a need to produce a larger number of plugs per unit time by reducing the molding material cost by eliminating the terminal fixtures that require a large amount of molding materials, and reducing the assembly cost and assembly time due to assembly. The present invention was born to meet these needs.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention is to mold the rod-like terminal bent at a predetermined angle, in particular in one terminal at a time in one terminal mold assembly assembly does not occur Adapter plug with integrated terminal that reduces the investment cost and molding material cost and the problem that the terminal fixture is caused to flow in the terminal case due to long use as in the past, that is, the plug is frequently inserted and disconnected into the outlet. To provide.

This object of the present invention is achieved by a plug for an adapter in which a terminal according to the present invention is formed integrally with a terminal case and a pair of bent rod-shaped terminals which are injection molded together with the terminal covering layer integrally with the terminal case.

As an example of an adapter plug integrally formed with a terminal according to the present invention for achieving the object of the present invention, will be described in detail in the following configuration and effects.

The plug for the adapter is formed integrally with the terminal according to an embodiment of the present invention for achieving the object as described above is equipped with an inductor (not shown) inside the plug mounting portion of the charger adapter is provided with a plug mounting portion on the outside An adapter plug for connecting the rear part and the front part to an outlet to enable charging, the adapter plug being adapted to apply an external power source, comprising: a terminal case and a pair of bent rod-shaped terminals that are injection molded together with the terminal coating layer integrally with the terminal case; It is made to include.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

3 to 5, there is shown a plug for an adapter integrally formed with a terminal according to an embodiment of the present invention.

Figure 3 is a perspective view showing a fastening structure of the adapter plug and the adapter and the outlet is formed integrally in accordance with an embodiment of the present invention, Figure 4 is an adapter plug integrally formed with a terminal according to an embodiment of the present invention It is a longitudinal cross-sectional view which shows the cut surface of.

3 and 4, an adapter plug 10 having a terminal integrally formed according to an embodiment of the present invention may be injected together with a terminal case 30 and a terminal coating layer 21 integrally with the terminal case. It is formed of a pair of bent rod-shaped terminals 20 to be molded.

In the following description, the rod-shaped terminal 20 that is bent as described above, that is, the terminal 20 formed so that the terminal rear end 27 has a smaller gap than the terminal front end 25 will be described as an embodiment.

As an example of an apparatus in which an adapter plug 10 in which a terminal of the present invention is integrally formed in which a rod-shaped terminal 20 having a narrower rear end portion 27 than the terminal front end portion 25 is integrally formed as described above is used. Commonly used for display of electronic devices (not shown) such as mobile phones, the terminal is commonly used for each cell phone body or adapter using PAL (Phase Alternation by Line) and NTSC (the united states National Television Systems Committee) method. The distance between the external power supply terminals input and output for use is fastened to devices that are uniformly uniform (for example, they are often all narrowly narrowed to minimize the size of the device).

The pair of terminals 20 as described above is a predetermined angle to the rear inner side of the joint forming surface 31 in which the terminal 20 and the terminal case 30 are interview-molded in a state of being integrally molded with the terminal case 30. A bent portion 26 inclined to is formed.

That is, the terminal front end portion 25 in front of the bent portion 26 protrudes forward of the joining molding surface 31 with the terminal case 30, and the terminal rear end portion 27 behind the bent portion 26 is formed. It protrudes backward to have a narrower spacing than the spacing of the terminal front end portion 25.

In addition, the terminal front end portion 25 protruding in front of the terminal case 30 is inserted into and separated from the terminal insertion hole 51 of the outlet 50.

The terminal rear end portion 27 protruding from the hollow fastening portion 32 opened to the rear of the terminal case 30 has a plug mounting portion 45 and a fastening portion protruding from the main body 41 surface of the adapter 40. Along with the fastening of the 32 is inserted into the terminal insertion hole 46 of the plug mounting portion 45 is fixed.

An annular fastening jaw 36 and a fastening protrusion 37 are formed in the rear flange portion 35 of the terminal case 30, and the adapter main body 41 faces the circumferential surface of the plug mounting portion 45 of the adapter. The flange fastening groove 42 formed in the fitting is fixed.

The plug 10 for an adapter in which the terminal of the present invention is integrally formed as described above is a plug mounting part 45 as in the related art because the terminal 20 is an integrally molded structure in which there is no flow even when the terminal 20 is frequently inserted into and separated from the outlet 50. Guide grooves for inserting the guide projections for preventing the flow of the terminal is formed separately on both sides of the terminal insertion hole 46 of the guide projections are formed to protrude on both sides of the terminal to be inserted and fixed in the groove for additional fixing function Not required.

Therefore, the plug for the adapter in which the terminal of the present invention is formed integrally requires a little molding material because it is a simple structure that does not require an additional fixing function such as a guide protrusion protruding long.

5 is a perspective view schematically showing a mold in which an adapter plug is formed by injection molding according to an embodiment of the present invention.

Referring to Figure 5, briefly described the manufacturing process of the adapter plug 10 is formed integrally with the terminal according to an embodiment of the present invention, the terminal front end portion 25 in front of the bent portion 26 as described above Protrudes in front of the joining molding surface 31 with the terminal case, and the rear end portion 27 of the rear portion of the bent portion has a narrower spacing than that of the front end portion of the terminal. In order to perform injection molding so that the bent rod-shaped terminal 20, the terminal case 30, and the terminal coating layer 21 which are projected downward are integrally formed together, the terminal provided in the lower mold 61 constituting the mold 60 Insert and fix the rod-shaped terminal 20 bent to the insertion support hole 63 so as not to flow, and combines the terminal case inner surface forming frame 62 of the shape that is opposed to the inner surface of the terminal case 30, After combining the upper mold 69 corresponding to the lower mold, A non-conductive synthetic resin material in a semi-melt state is forcibly discharged into the molding material filling hole 68, cooled for a predetermined time, and then demolded to produce an adapter plug 10 in which a terminal according to the present invention is integrally formed.

At this time, the amount of the molding material to be injected is the terminal 20 is integral to the terminal case 30 to prevent the flow of the terminal as in the prior art, that is, without the need for the joining molding surface such as the insertion flange, the fixed flange, the guide projection of the terminal front end portion, etc. It takes a minimum because it is molded firmly.

6 is a longitudinal sectional view showing a state in which a terminal of a plug for an adapter in which a terminal is integrally formed according to an embodiment of the present invention is fixed to a mold.

Referring to FIG. 6, the mold 60 is formed so that the rod-shaped terminal 20 whose middle portion is bent at a predetermined angle does not flow during injection molding, that is, the terminal bent portion 26 of the terminal is formed on one side of the mold. The terminal bent part support part 64 which has the support inclined surface 65 of the shape corresponding to the said terminal bent part in the terminal insertion support hole 63 is formed.

Thus, as described above, the terminal bent part 26 of the terminal is supported and molded so that there is no flow in the terminal bent part support part 64 of the mold, wherein the bent portion of the terminal bent part is the terminal bent part support part of the mold. By providing a special molding structure that is supported on the terminal bent portion support inclined surface 65 formed in the shape, it is difficult to injection molding integrally with the terminal case 30 because the shape of the terminal is a circular rod shape in which the intermediate portion is bent as described above. The problem that it is difficult to support the bent circular rod-shaped terminal to the mold 60 to support the mold 60 so that there is no flow even under the pressure of the molding material filled into the terminal insertion support hole 63 of the mold during injection molding is solved.

The plug for the adapter in which the terminal is integrally formed in accordance with the preferred embodiment of the present invention by the configuration as described above is operated as follows.

The rear flange portion 35 of the plug 10 for the adapter in which the terminal of the present invention is integrally fitted is fixed to the plug mounting portion 45 of the adapter and bent inwardly so as to have a narrower gap than that of the terminal front end portion 25. After the terminal rear end 27 protruding backward is inserted into the terminal insertion hole 46 of the adapter and fixed, the terminal front end 25 integrally protruding from the outlet 50 onto the terminal case for a long time. Repeating the insertion and removal is operated so that the flow of the terminal 20 does not occur naturally.

What has been described above is just one embodiment for implementing the plug for the adapter integrally formed terminal according to the present invention, the present invention is not limited to the above embodiment, which is claimed in the utility model registration claims below As will be apparent to those skilled in the art to which the present invention pertains without departing from the gist of the present invention, there is a technical spirit of the present invention to the extent that various modifications can be made.

As described above, the adapter plug formed with the terminal according to the present invention is integrally injection molded into the terminal case at one time in one mold at a time, in particular, by inserting a rod-shaped terminal that is bent at a predetermined angle into an outlet so that an assembly part is not generated. Even after repeated insertion and detachment for a long time, it is robust without the flow of the terminal, and it does not generate assembly parts so that it can be simplified, thereby reducing the cost of mold investment and molding material cost.

1 is an exploded perspective view showing an exploded adapter plug for a conventional

Figure 2 is a cross-sectional view showing a fastening structure of a conventional adapter plug and adapter

Figure 3 is a perspective view showing a fastening structure of the adapter plug and the adapter and the outlet is formed integrally in accordance with an embodiment of the present invention

Figure 4 is a longitudinal cross-sectional view showing a cut surface of the plug for the adapter integrally formed terminal according to an embodiment of the present invention

5 is a perspective view schematically showing a mold in which the plug for the adapter in which the terminal is integrally formed according to an embodiment of the present invention is injection molded;

Figure 6 is a longitudinal cross-sectional view showing a state in which the terminal of the plug for the adapter is integrally formed with a terminal according to an embodiment of the present invention fixed to the mold

Explanation of symbols on the main parts of the drawings

10. Plug for adapter with terminal integrated 20. Terminal

21. Terminal covering layer 25. Terminal front end

26. Bending part 27. Terminal rear end

30. Terminal Case

31. Bonding surface 32. Fastening part

35. Flange 36. Tightening Jaw

37. Fasteners 40. Adapters

41. Body 42. Flange fastening groove

45. Plug mounting part 46. Terminal insertion hole

50. Electrical outlet 51. Terminal insertion hole

60. Mold 61. Bottom mold

62. Molding frame for inner surface of terminal case 63. Support hole for terminal insertion

64. Terminal bent support 65. Terminal bent support Inclined surface

68. Filling hole for molding material 69. Upper mold

Claims (5)

In the plug portion of the charger adapter is provided with a plug mounting portion on the outer side of the plug is coupled to the rear portion and the front portion is connected to the outlet for charging, the adapter plug for applying external power, With terminal case, And a terminal plug integrally formed with a pair of bent rod-shaped terminals which are injection molded together with the terminal covering layer integrally with the terminal case. The terminal of claim 1, wherein the pair of terminals are formed integrally with the terminal case, and a bent portion is inclined at a predetermined angle to the rear inner side of the joining molding surface, and the front end of the terminal in front of the bent portion is the terminal case. And a terminal for protruding forwardly to a front of the joining molding surface, and having a terminal rear end portion protruding rearwardly so as to have a narrower gap than the terminal front end portion. The terminal of claim 1, wherein the terminal bent part of the terminal is supported by the terminal bent part support part having a support inclined surface in a shape corresponding to the terminal bent part in the terminal insertion support hole formed on one side of the mold. Integrated plug for adapter. The terminal front end portion protruding in front of the terminal case is inserted into and separated from the terminal insertion hole of the outlet, and the terminal rear end portion protruding in the hollow fastening portion opened to the rear of the terminal case is a plug of the adapter. The adapter plug is formed integrally with the terminal, characterized in that is fixed to the terminal insertion hole of the plug mounting portion together with the mounting portion and the fastening portion. The rear end flange of the terminal case is formed with an annular fastening jaw and a fastening protrusion is fixed to the flange fastening groove formed on the adapter body surface along the circumferential surface of the plug mounting portion of the adapter. Plug for adapter with integrated terminal.