KR200372025Y1 - Elastic Pin - Google Patents

Abstract

The present invention provides an elastic pin that can reduce the production cost by using a cheaper copper alloy as well as ensuring excellent contact reliability by generating a connection force in multiple directions.

The elastic pin according to the present invention is provided with a fixed holding portion, an elastic arm, and a contact portion installed in the electrical connector. The fixed holding part has a soldering pin extending vertically downward and electrically connected to a cable. The elastic arm has a longitudinal curved part extending upward from one side of the fixed holding part and one side of the longitudinal curved part. There are at least two transverse bends, wherein the contact portions are formed at the ends of the elastic arm and are exposed from slits located on top of the electrical connector.

Description

Elastic Pin

The present invention relates to an elastic pin disposed in an electrical connector and for electrically connecting with a welding connector, and more particularly to an elastic shrinkable pin.

1 is a three-dimensional view of a prior art electrical connector and abutment connector. Such an electrical connector is a pluggable electrical connector and is generally applied to a cellular phone, a personal digital assistant or a charger, and provided for charging or signal transmission. The electrical connector 8 is provided with an insulating kay phase 82, a plurality of elastic pins 84, and a cable 83, the elastic pins 84 are accommodated in the insulating casing 82, Exposed from the tip of the insulating casing 82, the cable 83 is disposed at the end of the insulating casing 82, and is electrically connected to the elastic pin 84. The electrical connector 8 corresponds to the welding connector 9, in which the plurality of fixed flat pins 92 are mounted.

2 is a front view of an elastic pin of the prior art. In order to secure the safety or reliability of the contact, the elastic pin 84 is disposed to elastically contact the flat pin 92 of the welding connector (9). The elastic pin 84 is provided with a fixed holding portion 85, an elastic arm 86, and a contact portion 87. Among them, the fixed holding portion 85 interferes with the inner wall of the insulating casing 82, and the elastic arm 86 is curved to the left and right of the fixed holding portion 85 and extends upward to be elastic. The flat pin 92 of the welding connector (9).

However, when the electrical connector 8 is in contact with the abutment connector 9, the planar pin 92 generates an oblique force in addition to generating a force in one direction with respect to the elastic pin 84. do. In addition, as the phenomenon of dropping by the weight of the electrical connector 8 after connection occurs, the elastic pin 84 is inclined contact with the flat pin 92 of the welding connector 9 inclined. Becomes However, the above-described elastic arm 86 of the prior art can generate only a relatively strong longitudinal elastic force, and because the elastic force in the other direction is weak, all the force received by the elastic pin 84 is concentrated in the vertical direction, and thus Due to elastic fatigue is easily generated. On the other hand, the size of the electrical connector 8 is increased because a structure having a slightly longer storage space in the longitudinal direction is required for accommodating the elastic pins 84.

When a force is applied to the contact portion 87 from an oblique direction, the upper portion of the elastic arm 86 is deformed. In the related art, since the thick bottom portion 88 is formed on the upper portion of the elastic arm 86, elasticity is increased. Not only is it deteriorated, but also the material cost is high.

In addition, since the elastic arm 86 has only the ability to absorb deformation in one direction (longitudinal direction), stress is concentrated and receives a large force. Since the elastic arm 86 easily generates elastic fatigue, a material having a very high strength is generally applied to satisfy the request of high elasticity. The prior art usually increases the cost because the beryllium copper alloy (BeCu) is applied to improve hardness and strength. In addition, since the elastic arm 86 has a large number of times of bending, the length becomes longer, resulting in a large resistance, which adversely affects communication quality.

As can be seen from the above, the conventional elastic pin should be improved because of practical inconveniences and drawbacks.

The present inventor has studied the present invention in order to solve the above-mentioned defects, and also proposed the present invention that can improve the above-mentioned defects in a rational and effective design in parallel with the physiological operation.

The present invention provides an elastic pin that can reduce the production cost by using a less expensive copper alloy as well as ensuring a good contact reliability by generating a connection force in multiple directions.

[Means for solving the problem]

The main object of the present invention is to provide an elastic pin that can generate a multi-directional connection force to ensure good contact reliability, and also to reduce the elastic fatigue by dispersing the force.

Another object of the present invention is to provide an elastic pin for reducing the resistance to improve the quality of the signal.

Another object of the present invention is to provide an elastic pin that can reduce the production cost by applying a cheaper copper alloy.

In the elastic pin according to the present invention, to achieve the above object, a fixed holding part, which is a soldering pin housed in an electrical connector and electrically connected to the welding connector and extending vertically downward, and extending upward from one side of the fixed holding part. An elastic arm having a longitudinal curved portion and an elastic arm having at least two horizontal curved portions positioned at one side of the longitudinal curved portion, and exposed from a slit formed at an end of the elastic arm and positioned at an upper portion of the electrical connector; A contact is provided.

1 is an isometric view of an electrical connector of the prior art

Figure 2 is a front view of the elastic pin of the prior art

3 is a three-dimensional view of the elastic pin of the present invention

Figure 4 is a cross-sectional view of the electrical connector assembled with the elastic pin of the present invention

Figure 5 is a cross-sectional view of the electrical connector is assembled with an elastic pin according to the present invention is inserted into the hospitality connector

6 is a front view of the elastic pin material belt of the present invention

Explanation of symbols for main parts of the drawings

8: electrical connector

82: insulated casing

83: cable

84: elastic pin

85: fixed holding part

86: elastic arm

87 contacts

88: thick bottom

9: hospitality connector

92: flat pin

1: elastic pin

12: fixed holding part

122: yojo

124: Extrude

126: Extrude

13, 13 ': soldering pin

14: elastic arm

15: longitudinal curve

16 contact

162: ball

17: lateral bend

172: contact part

2: electrical connector

22: insulated casing

23: storage space

24: slit

26: circuit board

3: hospitality connector

32: Hospitality terminal

4: elastic pin material belt

41: material bridge

42: connection part

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings, but the descriptions are provided only to explain the present invention and do not limit the utility model registration claims according to the present invention.

3 and 4 is a cross-sectional view of the electrical connector assembled with the three-dimensional elastic pin of the present invention and the elastic pin of the present invention, respectively. The elastic pin 1 of the present invention is accommodated in the electrical connector 2 and electrically connected to the welding connector 3 (see Fig. 5). The elastic pin 1 is provided with a fixed holding part 12, an elastic arm 14, and a contact portion 16. The electrical connector 2 is provided with an insulating casing 22 and a plurality of slits 24 formed on the insulating casing 22. In the present embodiment, the electrical connector 2 also has a circuit board 26 provided at the bottom, and the circuit board 26 may be an insulating plate body for fixing and holding the elastic pin 1. The insulating casing 22 is provided with a storage space 23 for accommodating the plurality of elastic pins 1. The welding connector 3 has a plurality of welding terminals 32.

The fixed holding portion 12 is a solder pin 13 extending vertically downward for soldering to the circuit board 26. The soldering pins 13 are installed at the bottom side of the fixed holding unit 12, not at the center of the bottom of the fixed holding unit 12, so that the plurality of elastic pins 1 are paralleled in opposite directions. The soldering pins 13 are soldered to the circuit board 26, and the soldering pins 13 are provided to intersect with the soldering pins 13 of Fig. 4 to facilitate soldering. The solder pin 13 may be soldered directly to a cable without being soldered to the circuit board 26.

In the present embodiment, a plurality of symmetrical recesses 122 are provided on the bottom edge of the fixed holding part 12, and among the bases of the soldering pin 13, the recesses 122 are respectively provided. Is installed, this can change the soldering pin to another position while increasing the strength of the base of the soldering pin (13). The free end of the fixed holding portion 12 is formed with a protrusion 124 facing outward, and a protrusion projecting outward at a position where the fixed holding portion 12 and the elastic arm 14 are connected ( 126 is formed, and the two protrusions 124 and 126 are fixed in the storage space 23 because the elastic pin 1 and the inner wall of the insulating casing 22 interfere with each other.

The elastic arm 14 includes a longitudinal curved portion 15 extending upward from one side of the fixed holding portion 12 and at least two horizontal curved portions 17 positioned on one side of the longitudinal curved portion 15. There is. The elastic arm 14 according to the present invention provides an elastic force to abut the welding connector 3 in a multi-direction, the longitudinal curved portion 15 provides an elastic force directed to both sides, the two transverse curves Reference numeral 17 provides an elastic force in the vertical direction as it is connected to each other by curvature.

The contact portion 16 is formed at the end of the elastic arm 14 and is also exposed from the upper slit 24 of the electrical connector 2.

Figure 5 is a cross-sectional view of the electrical connector is assembled to the elastic pin according to the present invention inserted into the connector. In this embodiment, the end of the elastic arm 14 is a contact portion 172 protruding downward, when the contact portion 16 is moved downward by the force, the contact portion 172 is in the transverse direction Since it provides a relatively short signal transmission path in contact with the curved portion 17, it is more advantageous for improving the signal quality. In the present embodiment, since the inwardly facing 162 corresponding to the end of the elastic arm 14 is formed at the bottom of the contact portion 16, not only the original elasticity can be maintained but also the lateral curved portion ( It is possible to reduce the amount of deformation by reducing the force pressing 17) downward so that the force acts directly on the contact portion 172, and also saves material.

The elastic pin 1 according to the present invention can reduce the elastic fatigue by dispersing the pressure contact force with the welding connector 3 through the above structure, and can also improve the contact reliability of the welding connector 3. At the same time, in the present invention, since the length of the elastic arm 14 is shorter than that of the related art by the curved method, the resistance is lowered and the signal quality is improved.

6 is a front view of the elastic pin material belt according to the present invention. The elastic pin 1 of the present invention is obtained by dividing the elastic pin material belt 4, and the elastic pin material belt 4 is manufactured by pressing a metal sheet, and the plurality of connecting portions 42 extending upwards are provided. A material bridge 41 having is provided, and a plurality of elastic pins 1 are formed thereon. The connection part 42 is connected to the fixed holding part 12 of the elastic pin 1.

Since a better multi-directional elastic force is produced by the bending method of the present invention, the same effect can be obtained with a cheaper general copper alloy in the present invention, so that the cost can be significantly reduced.

As described above, the present invention is filed according to the law because it satisfies the requirements of the utility model. However, the above descriptions are merely preferred embodiments of the present invention, and the utility model registration claims of the present invention are not limited thereto, and equivalent changes or modifications of the utility model registration claims of the present invention are also within the scope of the present invention. Included in

Claims (18)

An elastic pin housed in an electrical connector and electrically connected to a butt connector, A fixed holding part which is a soldering pin extending vertically downward, An elastic arm having a longitudinal curved portion extending upward from one side of the fixed holding portion and at least two transverse curved portions positioned at one side of the longitudinal curved portion; An elastic pin formed at an end of the elastic arm and having a contact portion exposed from a slit positioned at an upper portion of the electrical connector. The method of claim 1, Elastic pins, characterized in that a plurality of yaw (凹槽) is provided on the bottom edge of the fixed holding portion. The method of claim 1, An elastic pin, characterized in that a protrusion toward the outside is formed at the free end of the fixed holding portion. The method of claim 1, Elastic pins, characterized in that the protrusion is formed to protrude outward at the position where the fixed holding portion and the elastic arm is connected. The method of claim 1, Elastic pins, characterized in that the end of the elastic arm has a contact portion projecting downward. The method of claim 1, An elastic pin, characterized in that at the bottom end of the contact portion is formed inwardly corresponding to the end of the elastic arm (저 口). An insulating casing in which a storage space is formed and in which a plurality of slits are formed; A fixed holding part which is a soldering pin which is respectively accommodated in the storage space and extends vertically downward, a longitudinal curved portion extending upward from one side of the fixed holding portion and at least two transverse curved portions positioned on one side of the longitudinal curved portion; A plurality of elastic pins having elastic arms, And a contact portion formed at an end of the elastic arm and exposed from a slit of the electrical connector. The method of claim 7, wherein And a plurality of recesses are provided at a bottom edge of the fixed holding part. The method of claim 7, wherein Electrical connector characterized in that the free end of the fixed holding portion is formed to project toward the outside. The method of claim 7, wherein And a protrusion protruding outward from a position where the fixed holding portion and the elastic arm are connected to each other. The method of claim 7, wherein Electrical connector, characterized in that the end of the elastic arm has a contact portion projecting downward. The method of claim 7, wherein Electrical connector, characterized in that formed at the bottom end of the contact portion facing inward corresponding to the end of the elastic arm. An elastic pin material belt manufactured by pressing a metal sheet, A material bridge having a plurality of connecting portions extending upwards, An elastic arm having a fixed holding portion, each of which is a solder pin extending vertically downward, a longitudinal curved portion extending upward from one side of the fixed holding portion, and at least two transverse curved portions positioned at one side of the longitudinal curved portion; And a plurality of elastic pins formed at the ends of the elastic arms and having contact portions exposed from the slits of the electrical connector. The method of claim 13, Elastic pin material belt, characterized in that a plurality of yaw is provided on the bottom edge of the fixed holding portion. The method of claim 13, An elastic pin material belt, characterized in that the free end of the fixed holding portion is formed to project outward. The method of claim 13, Elastic pin material belt, characterized in that the projecting protruding outward is formed at the position where the fixed holding portion and the elastic arm is connected. The method of claim 13, The elastic pin material belt, characterized in that the end of the elastic arm has a contact portion projecting downward. The method of claim 13, Elastic pin material belt, characterized in that the bottom end of the contact portion is formed inwardly corresponding to the end of the elastic arm.