KR200212963Y1 - Jack for electronic appliance - Google Patents

Abstract

A jack for an electronic device having a monolithic casing is disclosed. The jack has an inner space for accommodating the plug, and has a protruding portion having an opening connected to the inner space, which is formed on the front side, and the upper plate is connected to the circuit board, and the plug is inserted into the casing and one end is connected to the plug inserted into the casing. And the other end of the casing outside is mounted to the circuit board on the same plane as the top plate. The jack has a simpler casing, which not only simplifies its manufacture, but also reduces manufacturing costs. The jack further has a plug that is resiliently fitted with the plug's skirt to further secure the plug. Can be fastened.

Description

Jacks for electronic devices with monolithic casings {JACK FOR ELECTRONIC APPLIANCE}

The present invention relates to a jack for an electronic device, and more particularly to a jack for an electronic device having a one-piece casing.

Jack-plug assemblies are widely used in the field of electronic devices, particularly in earphones such as acoustic or communication devices. In such an assembly, it is increasingly important to be able to easily mount a terminal to a jack having a plurality of terminals in order to perform a function of electrically connecting the plug to a circuit, and thus to be able to easily manufacture the jack. In addition, jack-plug assemblies used in electronic devices are required to be firmly fastened to each other.

1 is a partially exploded perspective view showing the construction and assembly of a jack according to the prior art to be.

The illustrated jack is disclosed in US Patent Publication No. 5,919,052 entitled Earphone Jack, issued to Ho et al. On July 6, 1999. The jack has a casing 1 having a neck formed with an opening for inserting a plug, five terminals 3 mounted in the casing 1 and a cover 2 closing the casing 1. Doing.

The terminal 3 is mounted to the casing 1 via a mounting groove 11 in the casing 1. The internal contact 30 of the terminal 3 is in electrical contact with a plug inserted in the casing 1, and the mounting portion 31, which is an external contact for electrically connecting the terminal 3 with the circuit, is mounted on the circuit board.

When all the terminals 3 are mounted in the casing 1 and the upper part of the casing 1 is closed with the cover 2, the assembly of the jack is completed, and the assembled jack is mounted on the circuit board and ready for use. .

However, the earphone jack described above requires a separate mold for the casing and the cover because the casing and the cover are separately formed, which may result in a complicated manufacturing process and an increase in manufacturing cost. In addition, the aforementioned earphone jack does not disclose a means for strengthening the engagement with the plug.

On the other hand, one example for strengthening the fastening between the jack and the plug is disclosed in US Patent Publication No. 4,988,314 entitled 'Connector' issued to Sardar on January 29, 1991.

The document proposes to strengthen the clamping force between the plug and the jack by configuring the diameter of the plug and the jack at the time of tightening to be much larger than the diameter before the tightening. However, this configuration can complicate the manufacture of plugs and jacks and thus increase manufacturing costs.

Accordingly, a first object of the present invention is to provide a jack for an electronic device, which can be manufactured more simply by having a unitary casing.

A second object of the present invention is to provide a jack for an electronic device that can be securely fastened with a plug.

1 is a perspective view of the top plate of the prior art separated.

2 is a perspective view of a jack according to the present invention.

3 is a perspective view of a casing used in the jack according to the present invention.

4 is a perspective view showing a cross-sectional view taken along the line A-A of FIG.

5 to 9 are perspective views of terminals used in the jack according to the present invention.

10 is a perspective view illustrating a state in which the terminals illustrated in FIGS. 5 to 9 are coupled to the casing illustrated in FIG. 4.

11 is a perspective view illustrating a state in which terminals illustrated in FIGS. 5 to 9 are coupled to a casing illustrated in FIG. 4.

12 is a plan view of the components shown in FIG.

FIG. 13 is a rear view of the components shown in FIG. 11. FIG.

14 is a perspective view of a shield cover used in the jack according to the present invention.

15 is a perspective view showing a state in which the shield cover of Figure 14 attached to the jack according to the present invention.

16 is a perspective view of a second embodiment of a shield cover;

<Explanation of symbols of main part of drawing>

100: jack 101: casing

106: protrusion 107: opening of the protrusion

109a, 109b, 109c, 109d: Guide 120, 130, 140, 150, 160: Terminal

170: cover 171: protrusion of cover

172: opening of the cover

In order to achieve the above object of the present invention, according to a preferred embodiment of the present invention, a protrusion having an inner space for accommodating the plug and having an opening connected to the inner space is formed on the front surface and the top plate is attached to the circuit board. Monolithic casings; And a jack for an electronic device having a plurality of terminals inserted into the casing, one end of which is connected to a plug inserted into the casing, and the other end of the casing is mounted on a circuit board on the same plane as the top plate.

At this time, the casing is one side is open and the terminal is inserted through the open side, the upper portion of the open side is provided with a plurality of guides for sliding the terminal, the lower side of the open side It is preferable that a plurality of guides are provided for sliding the terminal.

The electronic device jack may further include a metal cover surrounding the protrusion. The cover preferably has an opening having a diameter larger than that of the opening, and is elastically deformable.

The jack for an electronic device according to the present invention can be manufactured more simply by having a monolithic casing and thus the manufacturing cost can be reduced.

In addition, the jack for an electronic device according to the present invention can be more firmly fastened with the plug by additionally providing a cover to the protrusion.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, but these embodiments do not limit or limit the present invention.

Figure 2 shows a perspective view of a jack according to the present invention.

Referring to FIG. 2, the jack 100 according to the present invention includes a plastic casing 101 and five first, second, third fourth and fifth terminals 120 and 130 mounted in the casing 101. , 140, 150, and 160 are provided. The first to fifth terminals 120, 130, 140, 150, and 160 are inserted into the casing 101, and only a part thereof is illustrated.

Figure 3 shows a perspective view of the casing used for the jack according to the present invention.

Referring to FIG. 3, the casing 101, which is a unitary body, is made of plastic, and a flat top plate 102, a front surface 104 and a side surface 105 having a protrusion 106 and an opening 107 are formed. Three notches 110 are formed in the upper rear of the casing 101, and two rectangular engaging holes 111 and 112 are formed in the upper plate 102. As shown in FIG.

4 is a perspective view illustrating a cross section taken along a line A-A of FIG. 3.

As shown in FIG. 4, it can be seen that the rear portion 108 of the casing 101 is open, and an engagement hole 117 is formed at the rear of the left side. On the lower plate 103, four guides 109a, 109b, 109c, and 109d extending from the rear portion 108 are formed. Of the four guides 109a, 109b, 109c, and 109d, the pair of outer guides 109a and 109d are in the form of a lying square pillar, and the pair of inner guides 109b and 109c extend vertically from the lower plate 103. After that, it extends vertically in parallel with the lower plate 103 again.

5 to 9 show perspective views of terminals used in the jack according to the present invention.

Referring to FIG. 5, the first terminal 120 includes a generally flat body 121 made of sheet metal and having an opening formed in the middle thereof.

On the left side of the main body 121, the first contact 122 extending from the plane of the main body 121 is bent in a hook shape, and the second contact 123 formed at the upper right of the main body 121 is the main body 121. Is bent to the right from the plane. The first contact 122 is connected to a plug inserted into the casing 101, and the second contact 123 extends outside the casing 101 through the notches 110 and is mounted or soldered to the circuit board, thereby providing a plug. Is connected to the circuit.

The locking protrusion 124 is formed on the left side of the second contact 123, and the locking protrusion 125 is formed on the opposite side of the locking protrusion 124. When the first protrusion 120 is inserted into the casing 101, the locking protrusion 124 is fastened to the engagement hole 111 formed in the upper plate 102 of the casing 101 so that the first terminal 120 is connected to the casing 101. Secure it so that it does not escape from it.

Referring to FIG. 6, the second terminal 130 has a mirror-shaped “a” shape as a whole by including the first contact point 132 vertically lowered from one end of the bar-shaped main body 131.

A second contact 133 is formed at an end of the main body 131 opposite to the first contact 132, and the second contact 133 is bent and extends to the right from the main body 131. The first contact 132 is engaged with the first contact 122 while electrically descending from the upper portion of the first contact 122 of the first terminal 120 to be electrically connected to the plug, and the second contact 133 is connected to the first terminal ( As in the second contact 123 of 120, it is mounted on the circuit board. At each end of the first contact 132, one locking protrusion 134 and 135 are formed, respectively, and the locking protrusion 134 is engaged with the engagement hole 112 of the casing 101.

Referring to FIG. 7, the third terminal 140 includes a horizontal portion on the left side and a vertical portion on the right side, and has a main body 141 that is bent in the form of a mirror-shaped 'b'.

The first contact point 142 contacting the plug is formed at the left end of the horizontal portion of the main body 141, and the second contact point 143 mounted to the circuit board is formed at the upper end of the vertical part of the main body 141. A locking protrusion 144 is formed at the center of the main body 140.

Referring to FIG. 8, the fourth terminal 150 has a generally rectangular flat body 151. Two recesses are formed at the left end of the main body 151, which protrudes to the opposite side of the illustrated main body 151 plane to form a first contact 152 electrically connected to a plug inserted into the casing 101. do.

A second contact point 153 protruding from the main body 150 to the left is formed at the upper right side of the main body 150. A locking protrusion 154 is formed at a portion of the main body 150 that faces the second contact 153.

Referring to FIG. 9, the fifth terminal 160 has a generally flat body 161.

At the left end of the main body 161, a first contact 162 extending to the left with the width narrowed and then bent to the right is formed. The first contact 162 may act as a spring in its shape, and when the force is applied toward the main body 110 plane, the first contact 162 is pushed back to the original state when the force disappears. The first contact 162 mounted on the casing 101 is bent toward the main body 161 by the left end of the fourth terminal 160.

The second contact 163 is formed on the upper right side of the main body 161. The second contact 163 is mounted on the circuit board like the second contact of the other terminals 120, 130, 140, and 150. On the other hand, a locking projection 164 protruding to the left from the surface of the main body 161 is formed below the second contact 163. The locking protrusion 164 is fastened to the engagement hole 117 of the casing 101 shown in FIG.

FIG. 10 is a perspective view illustrating a state in which the terminals illustrated in FIGS. 5 to 9 are coupled to the casing illustrated in FIG. 4, and FIG. 11 is a view illustrating the terminals illustrated in FIGS. 5 to 9 coupled to the casing illustrated in FIG. 4. 12 is a plan view of the components illustrated in FIG. 11, and FIG. 13 is a rear view of the components illustrated in FIG. 11. Hereinafter, for convenience of description, it will be described with reference to FIGS. 10 to 13.

Referring to the drawings, the first terminal 120 is inserted into the groove between the right side 101 of the casing 101 and the guide 109a to be mounted to the casing 101, and the second terminal 130 is guided. It is inserted into the groove between 109a and guide 109b. The second terminal 130 is landed on the first contact 122 of the first terminal 120. The third terminal 140 is inserted into the space below the guide 109b and the guide 109c and is mounted to the casing 101. The fourth terminal 150 is inserted into a groove between the guide 109c and the guide 109d, and the fifth terminal 160 is inserted into a groove formed between the guide 109d and the left side side 105. Accordingly, it can be seen that the first contact point 162 and the fifth terminal 150 of the fifth terminal 160 are in contact with each other.

Referring to FIG. 13, the engaging protrusions 125, 135, 144, and 154 of the inserted first through fourth terminals 120, 130, 140, and 150 are engaged with the engaging holes 113, 114, 115, 116, and the locking protrusion 164 of the fifth terminal 160 is fastened to the engagement hole 117 of the side surface 105.

FIG. 14 is a perspective view of one embodiment of a shield cover used for the jack according to the present invention, and FIG. 15 is a perspective view showing a state in which the shield cover shown in FIG. 14 is attached to the jack according to the present invention. Hereinafter, for convenience of description, it will be described with reference to FIGS. 14 and 15.

Referring to the drawings, the shield cover 170 is a protrusion 171 and a front surface 104 and the side surface 105 of the casing 101 and the protrusion 171 which is covered with a minute gap outside the protrusion 106 of the casing 101. A band 174 covering a portion.

An opening 172 is formed in the protrusion 171, and the diameter of the opening 172 is equal to or slightly larger than the diameter of the opening 107 of the casing 101. The band 174 is sandwiched between the protrusions 118 formed at the edges of the front face 104 and then secured to the casing 101 by being fitted around the protrusions 119 of the side surface 105.

The shield cover 170 is made of sheet metal having excellent elasticity. For example, when the plug having the skirt extending from the plug holder is coupled to the jack 100, the shield cover 170 performs elastic fitting with the inner circumferential surface of the skirt. Therefore, the fastening strength between the plug and the jack 100 is increased by the shield cover 170.

16 is a perspective view of another embodiment of a shield cover.

As shown in FIG. 16, the shield cover 180 is similar in shape to the shield cover 170 described above, but is made of reinforced plastic. In addition, a plurality of first contacts 183a may be provided on the outer circumference of the protrusion 181 of the shield cover 180, and the first contacts 183a and one to one may be provided on the upper side of the band 184 extending in contact with the side surface of the casing. The corresponding second contact 184b is formed. At this time, the second contact 184b is mounted to the circuit board so as to be connected to the circuit. The jack having the shield cover 180 of this structure can be fastened with a plug having a plurality of terminals formed on the inner circumference of the skirt to electrically connect the terminals of the skirt to the circuit. In this case, the protrusion 181 of the shield cover 180 is selectively provided with a projection extending in the insertion direction of the plug to perform the function of the alignment means for guiding the correct insertion of the plug. Can be.

As described above, the jack for an electronic device according to the present invention is not only simpler to manufacture the casing is composed of a single body, but can also reduce the manufacturing cost accordingly.

The jack for an electronic device according to the present invention can be more firmly fastened with the plug by additionally providing a cover that is elastically fitted with the skirt of the plug.

Although the present invention has been described with reference to preferred embodiments of the present invention, those of ordinary skill in the art may devise the present invention without departing from the spirit and scope of the present invention described in the following Utility Model Registration Claims. It will be understood that various modifications and changes can be made.

Claims (12)

A monolith casing having an inner space for accommodating a plug, the protrusion having an opening connected to the inner space being formed on a front surface, and a top plate attached to a circuit board; And And a plurality of terminals inserted into the casing, one end of which is connected to a plug inserted into the casing, and the other end of the casing is mounted on a circuit board on the same plane as the top plate. The method of claim 1, One side of the casing is open, the jack for an electronic device, characterized in that the terminal is inserted through the open side. The method of claim 2, A jack for an electronic device, characterized in that a plurality of guides for sliding the terminal is provided on the upper side of the open side. The method of claim 2, The lower portion of the open side is provided with a plurality of guides for sliding the terminal jacks for electronic devices. The method of claim 1, And the terminal is inserted parallel to the insertion direction of the plug. The method of claim 5, And said terminal is made of sheet metal. The method of claim 5, The terminal is provided with a locking projection on the upper side, the jack for an electronic device, characterized in that the upper plate of the casing is provided with an engaging hole for fixing the locking projection. The method of claim 5, The terminal is provided with a locking projection on the lower side, the jack for an electronic device, characterized in that the lower plate of the casing is provided with an engaging hole for fixing the locking projection. The method of claim 5, The terminal is provided with a locking projection on the side, the jack for an electronic device, characterized in that the engaging hole for fixing the locking projection is provided on the side of the casing. The method of claim 1, And a metal cover surrounding the protruding portion, wherein the cover has an opening having a diameter larger than that of the opening. The method of claim 10, And the metal cover is elastically deformable. The method of claim 1, And a cover surrounding the protrusion, the cover having an opening having a diameter larger than the diameter of the opening, a plurality of first contacts formed around the protrusion, and a plurality of second contacts mounted on the circuit board. And the first contact point and the second contact point are connected one-to-one.