KR200316887Y1 - Plug fold structure for adaptor - Google Patents

Abstract

The present invention relates to a plug folding structure for an adapter, and more particularly, to a portable charger for charging a mobile phone and other electronic devices, such as to simplify the structure to fold the plug so as to reduce the weight and reduce the manufacturing cost and In addition, when not in use, the plug is accommodated in the main body side, as well as easy to take out, it is possible to miniaturize the plug folding structure for the adapter for easy portability and convenience.

The present invention is provided with a circuit mounting portion 22 and the plug mounting portion 21 is opened in the front and rear, the rear side of the plug mounting portion 21 is the front case 20 is partially sealed by the sealing plate (50, 150) And a main body 11 including a rear case 30 and 130 coupled to the front case 20. A plug (40) (140) having a rotating shaft (43) (143) having a cross-section having a different aspect ratio on both rear sides thereof so as to be rotatably mounted to the plug mounting portion (21); Circuit means (70) provided in the circuit mounting portion (22) for converting a voltage applied from the plug (40) (140); An output means (60) electrically connected to the circuit means (70) and drawn out of the main body (11) (111); It characterized in that it comprises a folding means (15, 115) configured in the main body (11) 111 to maintain the state when the plug is lying down or standing up.

Description

Plug fold structure for adapter

The present invention relates to a plug folding structure for an adapter, and more particularly, to a portable charger for charging a mobile phone and other electronic devices, such as to simplify the structure to fold the plug so as to reduce the weight and reduce the manufacturing cost and In addition, when not in use, the plug is accommodated in the main body side, as well as easy to take out, it is possible to miniaturize the plug folding structure for the adapter for easy portability and convenience.

In general, electronic devices such as small cassettes, car phones and cordless telephones or mobile phone chargers use low voltage and thus use adapters.

The adapter is already developed and widely used, and most of the adapters are plugged directly into an outlet when they are installed and used so that the plugs are fixed or foldable.

1 and 2 are perspective views showing an adapter with a collapsible plug, which will be briefly described, as shown in FIG. 1 and FIG. Rotating shaft 5a protrudes to both sides so as to be rotatably supported by 2), and a plug 5 which is installed to be foldable from one side of the main body 2, and provided inside the main body 2 and the plug ( A circuit board 6 for converting the voltage applied from 5) and an output terminal 7 electrically connected to the circuit board 6 and drawn out of the main body 2.

In addition, the main body 2 is provided with a receiving groove 3a of a constant depth to accommodate the plug 5 when it is laid down.

In addition, a locking groove (not shown) is formed in the main body 2 and a protrusion 5b is formed in the plug 5 to maintain the state when the plug 5 is lying or standing up. At the time of rotation of the plug 5, the projection 5b is caught by the locking groove.

However, the projections 5b and the locking grooves formed in the plug 5 and the main body 2 to maintain the state when the plug 5 is in a lying down or standing state are changed as they deform when used for a long time. Since the plug 5 is loosened, the plug 5 may be freely rotated.

Therefore, there have been many inconveniences in carrying and using the adapter 1.

In addition, although the plug 5 is accommodated in the receiving groove 3a of the main body 2 to reduce the volume of the adapter 1, it is not easy to pull out the plug 5 in the accommodated state. There was also.

An object of the present invention for solving the above problems is to form a cam with an elliptical rotation shaft of the plug on one side, but the front and rear cases forming the adapter body elastically the rotation shaft in the case Forming an elastic piece made to support the support boss and the engaging groove and forming a drawout groove communicating with the receiving portion on both sides of the front case, to simplify the folding structure of the plug to reduce weight and reduce manufacturing costs When not in use, the plug is accommodated in the main body side can be miniaturized to provide easy portability, as well as easy to take out the accommodated plug to provide an adapter plug folding structure for increased convenience.

1 is an overall perspective view showing a conventional adapter,

2 is a cross-sectional view showing a conventional adapter,

3 is an overall perspective view of the adapter according to the present invention,

4 is a perspective view showing the disassembled state according to the first embodiment of the present invention,

5 is a schematic view showing a state in which the front and rear support boss is deformed when the plug according to the first embodiment of the present invention is lying down or standing up,

6 is a schematic view showing a state in which the elastic piece is caught on the cam formed on the rotation shaft when the plug according to the first embodiment of the present invention is lying down or standing up;

7 is a perspective view showing the disassembled state according to the second embodiment of the present invention,

8 is a schematic view showing a state in which the plug according to the second embodiment of the present invention is lying down or standing up.

<Description of Signs of Major Parts of Drawings>

10: adapter 11,111: main body

12: drawing-out hole 15,115: folding means

20: front case 21: plug mounting portion

22: circuit mounting portion 23: support portion

24: forward support boss 24a, 31a, 151a: recessed groove

24b, 31b: incision groove 25: withdrawal groove

26: accommodating part 27: body accommodating part

28: terminal accommodating part

30,130: rear case 31,151: rear support boss

32: elastic piece 32a: locking jaw

40, 140: Plug 41, 141: Body

42,142: terminal 43,143: rotating shaft

43a: cam 43b, 152a: locking groove

44,144: contact portion 50,150: sealing plate

60: output means 61: terminal

70: circuit means 71: circuit board

80: connecting member 145: locking end

152: support

In order to achieve the above object, the present invention is provided with a circuit mounting part and a plug mounting part which is opened in a front and rear direction, and a rear side of the plug mounting part is composed of a front case partially sealed by a sealing plate and a rear case coupled to the front case. ; A plug having a rotating shaft having a transverse cross section having a different aspect ratio on both rear sides thereof so as to be rotatably mounted to the plug mounting portion; Circuit means provided in the circuit mounting portion and converting a voltage applied from the plug; Output means electrically connected to the circuit means and drawn out of the main body; It characterized in that it comprises a folding means configured in the main body to maintain the state when the plug is lying or standing up state.

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

3 is an overall perspective view showing an adapter according to the present invention, Figure 4 is a perspective view showing the disassembled state according to the first embodiment of the present invention, Figure 5 is a plug according to the first embodiment of the present invention 6 is a schematic view showing a state in which the front and rear support bosses are deformed when lying down or standing up, and FIG. 6 shows a state in which an elastic piece is caught by a cam formed on a rotation shaft when the plug according to the first embodiment of the present invention is laid down or standing up. Schematic diagram.

As shown, the adapter 10 of the present invention is the front, rear case 20, 30 is coupled to the main body 11 having a predetermined space therein, and the folding means (one side of the main body 11) A plug 40 rotatably installed by 15 and connected to an external power source, a circuit means 70 provided inside the main body 11 and converting a voltage applied from the plug 40, and one side The output means 60 is electrically connected to the circuit means 70 and the free end is drawn out of the main body 11.

The folding means 15 is configured on the pivot shaft 43 and the front and rear cases 20 and 30 of the plug 40 to maintain the state when the plug 40 is lying or standing up. As will be described in more detail below.

First, the plug 40 has two plug terminals 42 protruding from the front side of the body 41 that is injection-molded with a synthetic resin material, etc., and the plug terminal 42 is formed inside the body 41 at the rear side. The electrically connected contact portion 44 is formed to partially protrude, and the rotation shaft 43 is integrally formed on both sides thereof so as to be supported by the main body 11.

The pivot shaft 43 is formed to have an elliptical cross section, and one end thereof has cams 43a having a predetermined shape each including one or more locking grooves 43b.

Here, the locking groove 43b of the cam 43a is preferably formed with two locking grooves 43b to maintain the plug 40 when the plug 40 is lying down or standing up, and will be described below. The catching jaw 32a of the piece 32 is made to take each.

In addition, the main body 11 is made of a front and rear case 20, 30 is injection molded by a synthetic resin material or the like,

The front case 20 is provided with a plug mounting portion 21 on which the plug 40 is mounted and a circuit mounting portion 22 on which the circuit means 70 is mounted, wherein the plug mounting portion 21 is one side. The support portion 23 is formed to support the pivot shaft 43 of the plug 40 to be received inward, and the remaining part is opened to the front and rear in a somewhat larger size than the shape of the body 41 of the plug 40. .

In addition, the plug mounting portion 21 is sealed in the rear portion by the sealing plate 50 after the rotation shaft 43 of the plug 40 is accommodated. Therefore, when the sealing plate 50 is installed, the inside of the main body 11 is not visible from the outside.

In addition, a front support boss 24 having a recessed groove 24a is formed at a distal end of the support portion 23 so as to receive and support half of the pivot shaft 43, but is provided below the recessed groove 24a. The incision groove 24b of a predetermined length is formed to divide the concave groove 24a to both sides, so that the concave groove 24a supports the pivot shaft 43 with a constant elastic force.

Here, the concave groove 24a is made of an ellipse corresponding to the shape of the outer circumferential surface of the pivot shaft 43, and the width of the concave groove 24a is equal to or similar to the narrow width of the pivot shaft 43, which is the pneumatic shape.

The body 41 of the plug 40 toward the front side of the sealing plate 50 as the sealing plate 50 is installed at the plug mounting portion 21 open to the front and rear at the outside of the front case 20. ) Is provided with a body accommodating portion 27 is accommodated below the terminal receiving portion 28 for receiving the plug terminal 42 is formed. In addition, on both sides of the front case 20 provided with the body receiving portion 27, the withdrawal groove 25 is formed in communication with the body receiving portion 27 so that a person can easily hold the plug 40 plug 40 can be easily withdrawn.

Then, the rear case 30 is coupled to seal the open one side of the front case 20, the rear of the shape corresponding to the front support boss 24 in a position corresponding to the front support boss 24. A support boss 31 is formed to elastically support the other half of the rotation shaft 43 that is not supported by the front support boss 24.

That is, the recessed grooves 24a and 31a respectively formed in the front and rear support bosses 24 and 31 become one after the front and rear cases 20 and 30 are coupled to each other to form the pivot shaft 43. The outer circumference will surround the entire circumference.

In addition, the rear case 30 is formed with an elastic piece 32 having a constant elasticity adjacent to the rear support boss 31, one end of the engaging groove 43b formed in the cam 43a of the rotation shaft 43 The locking jaw (32a) of the shape corresponding to the () is formed so that the plug 40 is caught to the locking groove (43b) to maintain the state when the lying down or standing up.

Here, the elastic piece 32 is preferably formed to be in close contact with a certain elastic force on the cam (43a) side. That is, as the plug 40 rotates in conjunction with the cam 43a when the plug 40 is rotated in close contact with the outer circumferential surface of the cam 43a. At this time, when the plug 40 lies down or stands up, the elastic piece The locking step 32a of the 32 is caught by the locking groove 43b of the cam 43a.

Subsequently, the circuit means 70 is generally known, and various circuits such as a transformer for lowering the voltage, a rectifier circuit for rectifying the AC voltage to a DC voltage, a charging circuit for charging the battery, and the like are selectively provided on the circuit board. It is installed on the 71 is to be mounted to the circuit mounting portion 22.

Here, after adding a separate battery to the inside of the main body to charge the voltage in itself, the external power supply can be operated as soon as necessary to operate electronic devices, or to charge the battery of a mobile phone.

In addition, the circuit means 70 and the contact portion 44 protruding behind the body 41 of the plug 40 are electrically connected by the connection member 80.

At this time, the connecting member 80 has a constant elasticity to be elastically in close contact with the contact portion 44 in response to the rotation of the plug 40, but when the plug 40 is laid down, it is short-circuited and stood up It is desirable to be connected.

In addition, one side of the output means 60 is electrically connected to the circuit means 70 and the other side thereof is drawn out to the outside through the outlet hole 12 formed in the main body 11, and the free end is connected to an electronic device. Terminal 61 is provided to be coupled.

The terminal 61 may be generally configured in various forms. For example, the terminal 61 may be connected to an input terminal of a mobile phone, or may be a holder for charging a mobile phone. It can also be a terminal for supplying power.

As described above, the adapter 10 is configured to accommodate the pivot shaft 43 of the plug 40 in the support 23 formed in the plug mounting portion 21 of the front case 20 inside the support 23 It is supported on the front support boss 24 formed in the, one side of the plug mounting portion 21 is sealed by a sealing plate 50, the circuit mounting portion 22 is mounted with the circuit means 70, the circuit means 70 and the contact portion 44 of the plug 40 are electrically connected by the connecting member 80.

In addition, the circuit means 70 is connected to the output means 60, and finally the rear case 30 is combined with the front case 20 to complete the assembly.

Therefore, when the adapter 10 is not in use, the plug 40 is inserted into the receiving portion 26 and is laid down. At this time, the locking jaw 32a of the elastic piece 32 is rotated by the plug 40. It is caught by the locking groove 43b of the cam 43a formed in the coaxial 43, so that the plug 40 continues to be laid down.

In addition, in the state in which the plug 40 is laid down, the recessed grooves 24a and 31a formed in the front and rear support bosses 24 and 31, respectively, have little elastic force acting on the pivot shaft 43. do.

When the plug 40 is to be erected, the plug 40 is pulled out through the withdrawal groove 25 formed in the front case 20, and after the plug 40 is erected at a right angle. The catching jaw 32a of the elastic piece 32 is caught by another catching groove 43b of the cam 43a formed in the pivot shaft 43 so that the plug 40 remains in a standing state. will be.

In addition, when the plug 40 stands up and the pivot shaft 43 moves in a right angle, the inlet grooves 24a and 31a respectively formed in the front and rear support bosses 24 and 31 are opposite sides. As the gap is opened, the pivot shaft 43 is in close contact with a constant elastic force. Therefore, when the plug 40 is rotated at an angle of less than a right angle at a right angle when the plug 40 in the standing state is to be laid down, the recess groove 24a which elastically closes the pneumatic pivot shaft 43. By means of 31a, the plug 40 is automatically laid down.

7 is a perspective view illustrating an exploded state of an adapter according to a second embodiment of the present invention, and FIG. 8 is a schematic view showing a state in which the plug according to the second embodiment of the present invention is lying down or standing up. The same parts as in the embodiment will be denoted by the same reference numerals and the repeated description thereof will be omitted, and only different configurations will be described.

As shown, in the second embodiment, only the folding means 115 for folding the plug 140 is configured differently from the first embodiment.

The folding means 115 is configured to the plug 140, the front case 20 and the sealing plate 150 to maintain the state when the plug 140 is lying or standing up,

First, the plug 140 has two plug terminals 142 protruding from the front side of the body 141, which is injection-molded with synthetic resin, etc., and a hook end 145 having a predetermined thickness is formed at the rear side, and the hook end Both sides of the 145 are formed to partially protrude a contact portion 144 electrically connected to the plug terminal 142 in the body 141 and is supported by the front case 20 on both sides of the body 141. Rotating shaft 143 is integrally formed to be.

Here, the rotation shaft 143 is preferably formed to have an elliptical cross section.

In addition, the main body 111 is made of a front, rear case 20, 130 is coupled, the main body 111 is made of the same configuration as the first embodiment, the description thereof will be omitted, but only the rear case ( The back support boss 31 and the elastic piece 32, which were formed integrally with the 130, are omitted.

Then, the rear side of the plug mounting portion 21 formed to be opened and closed on the front case 20 is partially sealed by the sealing plate 150, the front support boss formed in the front case 20 on the sealing plate 150. A rear support boss 151 having a shape corresponding to the front support boss 24 is formed at a position corresponding to the 24 so as to burn only the remaining section of the rotation shaft 143 that is not supported by the front support boss 24. Sexually Supported

In addition, the recessed grooves 24a and 151a respectively formed in the front and rear support bosses 24 and 151 become one after the front and rear cases 20 and 130 are coupled to each other. The outer circumference will wrap the entire two cases.

In addition, the sealing plate 150 has a support 152 is formed in the center so as to maintain the state when the plug 140 is in a standing position, the front end portion of the locking end 145 in the support 152 A locking groove 152a having a predetermined shape is formed to wrap.

Therefore, in the second embodiment, when the plug 140 stands, the locking end 145 of the plug 140 is inserted into the locking groove 152a of the support 152 formed on the sealing plate 150. By doing so, the standing state is maintained.

As described above, when the adapter 10 is connected to an external power source and the plugs 40 and 140, the adapter 10 adapts the voltage applied from the plugs 40 and 140 to the user's purpose in the circuit means 70. It converts and supplies power to an electronic device connected to the output means 60.

In addition, the structure for folding the plug 40, 140 is ejected together with the plug 40, 140 and the sealing plate 50, 150, and the front and rear cases 20, 30, 130 and the like. Molding reduces the manufacturing process and manufacturing costs.

According to the present invention described above, the structure for folding the plug is robust and simplified, and at the same time, as they are molded by integral injection, the manufacturing process and the manufacturing cost are reduced together with the weight reduction.

In addition, when the plug is not in use, the plug is accommodated in the accommodation portion of the main body, so that the plug can be miniaturized as a whole, which is easy to carry, and the convenience of drawing out the accommodated plug is increased.

Claims (11)

A main body having a circuit mounting part and a plug mounting part opened in a front and rear direction, and a rear side of the plug mounting part comprising a front case partially sealed by a sealing plate and a rear case coupled to the front case; A plug having a rotating shaft having a transverse cross section having a different aspect ratio on both rear sides thereof so as to be rotatably mounted to the plug mounting portion; Circuit means provided in the circuit mounting portion and converting a voltage applied from the plug; Output means electrically connected to the circuit means and drawn out of the main body; And a folding means configured inside the main body to maintain the state when the plug is lying down or standing up. According to claim 1, The folding means is the support portion is formed so that the pivot shaft is received in the plug mounting portion and the inner side of the support portion is formed with a front support boss for supporting a portion of the pivot shaft with a constant elastic force, The rear case is made of a shape corresponding to the front support boss and a plug folding structure for the adapter, characterized in that the rear support boss is formed to support the rest of the rotating shaft with a constant elastic force is formed. According to claim 1, The folding means is formed on the rear end of the plug has a predetermined thickness, the support portion is formed in the plug mounting portion to receive the rotation shaft inward and the rotation shaft inside the support portion The front support boss for supporting a portion of the formed with a constant elastic force is formed, the sealing plate is formed in a shape corresponding to the front support boss and the rear support boss for supporting the rest of the rotating shaft with a constant elastic force is formed Plug folding structure for the adapter, characterized in that. The method according to claim 1 or 2, The pivot shaft has an elliptical cross section and a plug folding structure for an adapter, characterized in that a cam formed of one or more engaging grooves is formed at one end thereof. The method according to claim 1 or 3, The pivot shaft has an oval cross section of the adapter plug folding structure. The method of claim 2 or 3, Adapter plugs, characterized in that the front and rear support boss is formed with a recess groove for accommodating and supporting half of the rotational shaft, respectively, and a cutting groove of a predetermined length is formed at the lower side thereof to divide the recess groove into both sides. Folding structure. The method of claim 4, wherein At least one elastic piece having a predetermined elasticity is formed in the rear case, and one end of the hook is formed in a locking step corresponding to the locking groove so that the locking groove can be held when the plug is lying or standing up. Plug folding structure for the adapter, characterized in that made to. The plug folding structure for an adapter according to claim 5, wherein the sealing plate is provided with a support having a locking groove formed therein so as to surround the front end portion of the locking end so that the plug is maintained in the standing state. . The method of claim 1, The front case is a plug folding structure for the adapter, characterized in that the receiving portion is formed so that the whole can be accommodated when the plug is lying down. The method of claim 9, A plug folding structure for an adapter, characterized in that a drawing groove communicating with the receiving portion is formed on both side surfaces of the front case so as to easily draw out the plug. The method of claim 1, The output means is a plug folding structure for the adapter, characterized in that the terminal is configured to be coupled to the power supply and the electronic device.