KR101775604B1 - Contact and connector - Google Patents

Contact and connector Download PDF

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Publication number
KR101775604B1
KR101775604B1 KR1020160034641A KR20160034641A KR101775604B1 KR 101775604 B1 KR101775604 B1 KR 101775604B1 KR 1020160034641 A KR1020160034641 A KR 1020160034641A KR 20160034641 A KR20160034641 A KR 20160034641A KR 101775604 B1 KR101775604 B1 KR 101775604B1
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South Korea
Prior art keywords
contact
contact beam
terminal
end portion
curvature
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KR1020160034641A
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Korean (ko)
Inventor
홍형식
Original Assignee
(주)마이크로컨텍솔루션
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/08—Resiliently-mounted rigid pins or blades
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point
    • H01R13/2471—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point pin shaped
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point
    • H01R13/2492—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point multiple contact points
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles

Abstract

The present invention relates to a contact terminal and a connector including the same, and more particularly, to a contact, which comprises a first contact beam and a second contact beam, and prevents the resistance thereof from increasing while improving conduction efficiency and a transmission speed thereof by allowing the first contact beam to be in contact with an external electricity terminal and be deformed so as to come in contact with the second contact beam, and a connector including the same.

Description

[0001] CONTACT AND CONNECTOR [0002]

The present invention relates to a connector including a contact terminal and a contact terminal. More particularly, the present invention relates to a connector including a first contact beam and a second contact beam, deformed when the first contact beam contacts the external electric terminal, Contact and conductive so as not to increase the resistance of the contact while improving the conduction efficiency and the transmission speed, and a connector including the same.

The connector is used for electrical connection between electrical devices. In this connector, a predetermined contact electrically connected to the electric terminal is built in.

Figs. 1 and 2 are views showing that such a contact B is accommodated in the connector A. Fig. 2, when a predetermined electric device C is accommodated in the connector A, the contact B is elastically contacted via a predetermined contact portion D to be electrically connected. At this time, for smooth contact, the contact B may be made of a material that is elastically deformed, so that a predetermined resistance force is generated.

The pitch of the contacts provided in the connector is determined according to the purpose of the connector used for the general purpose. For example, it is 1.27 mm for SATA, 0.8 mm for SAS, and 0.5 mm for PCIe.

The transmission speed of these connectors will increase year by year, and by 2017, 24Gbps (Giga bit per second) products will also be released based on SATA standards.

Characteristic impedance matching is important to improve the transmission speed in designing such a high-speed connector.

Impedance is similar to that of a dc circuit's resistance (voltage vs. current ratio). However, the important point is that impedance is a concept applied in an AC circuit with a frequency. In other words, the impedance is defined as a resistance R that is not related to the frequency, a resistive element L (inductor) including a frequency concept, and a wider resistor of AC concept including the concept of C (capacitor) .

Impedance is expressed as Z, and impedance of the resistor (R), inductor (L), and capacitor (C) is as follows.

Resistance: Z R = R

Inductor: Z L = jwL

Capacitor: Z C = 1 / jwC

 

Where w represents the angular velocity and w = 2πf. Since f is the frequency, it can be seen that the impedance changes according to the frequency. In the case of the inductor, the higher the frequency is, the larger the impedance becomes. Therefore, the higher the frequency, the larger the resistance component. Conversely, in the case of capacitors, the higher the frequency, the lower the impedance.

In general, the complex impedance is expressed as:

Z = Z R + jwL - 1 / jwC

The characteristic impedance of the transmission line is expressed by Equation 1 below.

Figure 112016027953142-pat00001

(Equation 1)

Assuming that there is no loss in the resistance component, the following Equation 2 is obtained.

Figure 112016027953142-pat00002

(Equation 2)

The impedance matching will be described with reference to Fig. In the circuit shown in FIG. 2, it is assumed that a voltage applied from a voltage source Vs is transmitted to a load by being caught by a transmission line. Then, in the load, the following equation 3 should be established

Figure 112016027953142-pat00003

(Equation 3)

Here, V + 0 and I + 0 are incident waves, and V-0 and I-0 are reflected waves (waves that go opposite to the incident wave).

The reflection coefficient Γ is introduced to solve equation (1) neatly. The reflection coefficient is a simple ratio of the incident voltage wave to the reflected voltage wave. Then, the reflection coefficient can be newly defined from Equation 3.

Figure 112016027953142-pat00004

As shown in the reflection coefficient equation, when Z L = Z 0, the reflection becomes '0' (transmission rate is 100%), and the impedance is matched (Impedance Matching). Impedance matching is important because it improves signal propagation characteristics.

The impedance value is proportional to the area of the opposite conductor, and the inductance value is inversely proportional to the area of the opposite conductor, because impedance matching is achieved by adjusting the capacitance and inductance value when Z 0 is changed for impedance matching at the connector.

Considering this in the contacts included in the connector, the characteristic impedance is determined according to the inductance and capacitance between the conductor and the dielectric surrounding the conductor and the conductor. In the pitch-fixed connector, if the width of the facing contact is increased, If the width is thinned, the impedance increases.

If the width of the contact needs to be increased for the impedance matching, it can not be thickened to some extent. This is because as the contact force increases, the contact force of the contact increases, thereby damaging external electrical devices such as the DUT and the connector, thereby reducing the life of the external electrical device and the connector.

Therefore, in order to increase the transmission speed, it is necessary to develop a contact capable of solving this problem.

Patent Document 1: JP-A-10-0050581

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above problems, and it is an object of the present invention to provide a semiconductor light emitting device having a first contact beam and a second contact beam, To thereby improve the conduction efficiency and the transmission speed, and to prevent the resistance of the contact from increasing.

According to an embodiment of the present invention, there is provided a contact terminal comprising: a first contact beam which is mounted on a connector and is in contact with an external electrical terminal, the first contact beam extending with a predetermined length and in contact with an external electrical terminal; A second contact beam positioned above the first contact beam and extending with a predetermined length; And a contact body connecting the first contact beam and the second contact beam to each other,

Wherein the first contact beam and the second contact beam are extended in a state of being spaced apart from each other in a vertical direction from a first end portion connected through the contact body to a second end portion in an opposite direction,

The first contact beam is deformed and the second end portion of the first contact beam and the second end portion of the second contact beam are mutually engaged with each other when the external electrical terminal comes into contact with the second end of the first contact beam, Contact.

Preferably, when the external electrical terminal contacts the first contact beam, the external electrical terminal pushes the second end portion of the first contact beam upward so that the first contact beam is bent, And the lower surface of the second end portion of the second contact beam is in contact with and brought into contact with the upper surface of the second end portion of the first contact beam.

Preferably, the first contact beam and the second contact beam are located on the same line in the vertical direction.

Preferably, the first contact beam and the second contact beam have a first curvature radius and a third curvature radius, respectively, the curvature of which is centered at a lower portion of the curvature, And the second end portion is located further downward in the vertical direction than the first end portion.

Preferably, a distance between the first contact beam and the second contact beam is narrower from the first end toward the second end, wherein a downward displacement of the second contact beam is smaller than a distance between the first contact beam and the second contact beam, Is smaller than that of the downward direction.

Preferably, the first radius of curvature of the first contact beam is larger than the third radius of curvature of the second contact beam.

Preferably, the first contact beam has a first end region formed in the second end portion so that the curved direction is reversed and curved upward, and the first end region is provided with a convex portion Wherein the first downward convex surface and the second downward convex surface constitute an outer contact portion in contact with the external electrical terminal, and the second downward convex surface forms a first downward convex surface and a second downward convex surface, Thereby constituting an internal contact portion.

Preferably, the second contact beam has a second end region formed at the second end portion so as to be curved upward in the direction of curvature, and a third bottom convex surface is formed at a lower surface of the second end region And the third lower convex surface constitutes a second internal contact portion which is in contact with the first contact beam, and the first internal contact portion and the second internal contact portion are in contact with each other to conduct.

Preferably, the first end region has a second radius of curvature, the second end region has a fourth radius of curvature, the second radius of curvature is less than the fourth radius of curvature, And more upward in the upward direction than the second end region.

Preferably, the contact body includes a first body and a second body so that the contact body can be separated and coupled in the vertical direction, and the first body is formed integrally with the first contact beam, Is integrally formed with the second contact beam.

A connector structure according to an embodiment of the present invention includes: a contact terminal; And a connector housing; Wherein the connector housing includes an insertion groove into which an external electric device having an external electrical terminal can be inserted and a terminal accommodating hole in which a plurality of the insertion holes are formed in a side portion of the insertion groove, Wherein the contact terminal is exposed to the inside of the insertion groove with the second end portion of the first contact beam being housed in the terminal accommodating hole and at least a portion of the contact body protrudes outside the terminal accommodating hole And a second end of the first contact beam is pushed outwardly of the insertion groove when the external electronic device is inserted into the insertion groove to expose the second end of the second contact beam, Lt; / RTI >

According to the present invention, since the first contact beam and the second contact beam are electrically conducted together with the external electrical terminal, the impedance matching is achieved without increasing the resistance of the contact, thereby improving the transmission speed.

According to the present invention, it is possible to more effectively achieve the improvement of the transmission effect while preventing the breakage of the external electric device and the reduction of the service life by not increasing the resistance of the contact. That is, a desired impedance matching is enabled, and high-speed signal transmission can be achieved.

Further, as the second radius of curvature of the first terminal region constituting the first internal contact portion is smaller than the fourth radius of curvature of the second terminal region constituting the second internal contact portion, the first contact region and the second contact region A larger contact area can be secured. That is, the two-point contact or the substantial surface contact is achieved through the curved surface rather than simply by one point contact, thereby enlarging the contact area and ensuring conduction more effectively.

In addition, as the distance between the first contact beam and the second contact beam becomes narrower from the first end portion to the second end portion, the first contact beam is not deformed much, and the second contact beam is simply So that the effect of making the conduction more favorable is ensured. In addition, since the first contact beam only requires a small deformation, the first contact beam easily retains its shape and elasticity, and can be prevented from permanent deformation in spite of a great deal of use, so that the use life can be secured longer.

1A and 1B are views showing a state in which a contact according to the related art is mounted in a connector.
2 is a circuit diagram for explaining impedance matching.
3 is a view showing a contact according to the present invention.
4 is a view showing a state in which a contact according to the present invention is deformed and a first contact beam and a second contact beam are in contact with each other.
5 is a cross-sectional view of a contact according to the present invention.
6 is a view showing a state in which a contact according to the present invention is accommodated in a connector.
7 is a view showing a state in which a predetermined electric device is inserted into the connector according to FIG.
8 is a view showing dimensions of respective portions of a contact terminal according to an embodiment of the present invention.
9 is a view showing a contact according to another embodiment of the present invention.

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

The description related to the present invention refers to the drawings. The direction described in the description is based on the direction shown in the drawing, and the direction may be changed according to the actual orientation, and is not limited to the direction shown in the drawings.

3, a contact terminal 1 according to an embodiment of the present invention includes a first contact beam 100, a second contact beam 200, and a contact body 300.

First, the first contact beam 100 will be described.

The first contact beam 100 is a member that is in electrical contact with and in substantial contact with the external electrical terminal. Accordingly, the first contact beam 100 is made of a material that can conduct electricity, and may preferably be made of copper, aluminum, or the like. The first contact beam 100 may be formed in a beam shape having a predetermined vertical width, a horizontal length, and a predetermined thickness.

The first contact beam 100 has a predetermined length and has a first end portion A in the longitudinal direction and a second end portion B in the longitudinal direction opposite to the first end portion A. [ In Fig. 3, the left direction is indicated by the first end portion A and the right is indicated by the second end portion B. The first end portion A is a portion connected to the contact body 300, which will be described later, and the second end portion B, can be grasped as the opposite portion.

Preferably, the first contact beam 100 has a shape curved with a first radius of curvature along a predetermined first curve R1, as shown in Fig. At this time, the shape to be curved is not necessarily a part of a circular shape or a quadratic curve shape, but may have a predetermined curved shape, and is not limited to any particular shape.

At this time, the first curvature center, which is the center of curvature of the first contact beam 100, is located below the first contact beam 100. That is, the first contact beam 100 has a convex curve shape in the upward direction. Preferably, as shown in FIG. 3, it may have a curved shape rising upward and descending by a predetermined distance from the first end portion A to the second end portion B, as shown in FIG.

In addition, the first curvature center is located closer to the first end portion A than the second end portion B. Therefore, the horizontal distance between the first end portion A and the uppermost point is shorter than the horizontal distance between the second end portion B and the uppermost point. That is, it may have a shape of rising by a short distance and then falling by a long distance, and according to an embodiment, it is also possible to have a curved shape in which the rising distance is omitted and only the falling shape is obtained.

Accordingly, the first contact beam 100 has a predetermined drop. The falling is the distance in the vertical direction between the position of the first end portion A and the position of the second end portion B, that is, the distance in the downward direction, which is the interval N shown in Fig.

The first end region 110 is formed at the second end portion B so that the curved direction is reversed and curved upward. That is, the first end region 110 is formed so as to be lowered toward the second end portion B and bent upward in the direction adjacent to the second end portion B.

Thus, the first end region 110 extends along the second curve R2, and has a predetermined second curvature center and a second curvature radius. At this time, the center of the second curvature is located at the upper portion of the first contact beam 100, and therefore, it can be said to have a downward convex region. In addition, the second radius of curvature is smaller than the first radius of curvature. That is, it can bend up relatively more rapidly.

As the first end region 110 is formed, a downwardly convex rounded surface is formed at a lower portion and an upper portion of the first end region 110. That is, a first downward convex surface 112 is formed in a lower portion of the first terminal region 110, and a second downward convex surface 114 is formed in an upper portion of the first terminal region 110. At this time, the first downward convex surface 112 constitutes an external contact portion which contacts the external electrical terminal, and the second downward convex surface 114 constitutes a first internal contact portion which contacts the second contact beam 200 do.

Hereinafter, the second contact beam 200 will be described.

The second contact beam 200 is a member located on the top of the second contact beam 200. The second contact beam 200 is a member that is not in substantial physical contact with the external electrical terminal, but is electrically conductive through the first contact beam 100. Accordingly, the second contact beam 200 is also made of a material that can conduct electricity, and may be made of copper, aluminum, or the like.

The second contact beam 200 may also be in the form of a beam having a predetermined vertical width, a horizontal length, and a predetermined thickness. The second contact beam 200 is positioned above the first contact beam 100 and is vertically spaced apart from the first contact beam 100 so that the first contact beam 100 and the second contact beam 200 A predetermined spacing space 400 is formed. In addition, the first contact beam 100 and the second contact beam 200 are located on the same line in the vertical direction.

The second contact beam 200 also has a configuration and a shape similar to that of the first contact beam 100. That is, the second contact beam 200 has a first end portion A in a longitudinal direction and a second end portion B in the longitudinal direction opposite to the first end portion A, . In Fig. 3, the left direction is indicated by the first end portion A and the right is indicated by the second end portion B. The first end portion A is a portion connected to the contact body 300, which will be described later, and the second end portion B, can be grasped as the opposite portion.

Preferably, the second contact beam 200 also has a shape curved with a third radius of curvature along a predetermined third curve R3. At this time, it is not necessarily a part of a circle, or a quadratic curve, but it is sufficient if it has a predetermined curve form, and it is not limited to any particular form. At this time, the third curvature center, which is the center of curvature of the second contact beam 200, is located below the first contact beam 100. That is, the first contact beam 100 has a convex curve shape in the upward direction. Preferably, it may have a curved shape rising upward and falling downward by a predetermined distance from the first end portion A to the second end portion B.

In addition, the third curvature center is located closer to the first end portion (A) than the second end portion (B). Therefore, the horizontal distance between the first end portion A and the uppermost point is shorter than the horizontal distance between the second end portion B and the uppermost point. That is, it may have a shape of rising by a short distance and falling by a long distance. According to an embodiment, it is also possible to have a curved shape in which the ascending distance is omitted and only the descending shape is obtained.

Considering the center of the first curvature, which is the center of curvature of the first contact beam 100, and the center of the third curvature, which is the center of curvature of the second contact beam 200, May be the same as the position of the center of curvature, or may be deflected further to the left. That is, for example, when the position of the first curvature center is a first position that is a specific position between the first end portion A and the second end portion B, the position of the third curvature center is the first position And is located adjacent to the first end portion A. Of course, if the position of the center of the first curvature is located to the left of the first end portion A, the position of the third curvature center is located further to the left.

Accordingly, the position of the highest point of the first contact beam 100 in the up-and-down direction is located to the right of the position of the highest point of the second contact beam 200 in the up-down direction. That is, adjacent to the second end portion B.

The radius of curvature of the first contact beam 100 and that of the second contact beam 200 are considered. The first radius of curvature of the first contact beam 100 is equal to the radius of curvature of the third contact beam 200 The radius of curvature may be equal to or larger than the radius of curvature.

According to this configuration, the second contact beam 200 can be bent more greatly than the first contact beam 100. Accordingly, the second contact beam 200 can have a larger fall downward than the first contact beam 100. [ Therefore, the second drop M, which is the drop of the second contact beam 200, may be smaller than the second drop N, which is the drop of the first contact beam 100.

The distance between the first contact beam 100 and the second contact beam 200 becomes narrower from the first end portion A to the second end portion B, . That is, the first contact beam 100 and the second contact beam 200 have a configuration closer to the first end portion A to the second end portion B. In other words, the spacing space 400 formed between the first contact beam 100 and the second contact beam 200 is gradually separated from the first end portion A to the second end portion B, So that the width becomes narrow.

According to an embodiment, the second contact beam 200 may also have a second end region 210 formed at the second end portion B so that the curved direction is reversed and curved upward. That is, the second end region 210 is formed so as to move downward as it goes to the second end portion B, and to bend upwardly adjacent to the second end portion B.

Thus, the second terminal region 210 is curved along the fourth curve R4 to have a predetermined fourth curvature center and a fourth curvature radius. At this time, the center of the fourth curvature is located on the upper portion of the second contact beam 200, and thus it can be said to have a convex region downward. In addition, the fourth radius of curvature is smaller than the third radius of curvature. That is, it can bend up relatively more rapidly.

As the second terminal region 210 is formed, a downwardly convex rounded surface is formed in the lower portion of the second terminal region 210. That is, the third downward convex surface 212 is formed under the second terminal area 210. At this time, the third downward convex surface 212 constitutes a second inner contact portion capable of coming into contact with the above-described second lower convex surface.

When the second radius of curvature of the first end region 110 is compared with the fourth radius of curvature of the second end region 210, 2 < / RTI > That is, the first end region 110 may be further bent upward than the second end region 210.

The end point of the second end portion B of the second contact beam 200 is located further to the left than the end point of the second end portion B of the first contact beam 100 . That is, the distance between the first end portion A and the second end portion B of the first contact beam 100 is larger than the distance between the first end portion A and the second end portion B of the second contact beam 200 ). ≪ / RTI >

On the other hand, the second terminal region 210 having the fourth radius of curvature may not exist. That is, an embodiment in which the second end portion 200 of the second contact beam 200 has a blunt terminal is also possible.

Hereinafter, the contact body 300 will be described.

The contact body 300 is a member that connects the first contact beam 100 and the second contact beam 200 and is connected to an external device by being protruded from the connector.

The contact body 300 connects the first contact beam 100 and the first end portion A of the second contact beam 200. The contact body 300 may be integrally formed with the first contact beam 100 and the second contact beam 200.

Preferably, the contact body 300 may have a fixed end 304 that protrudes in the up-and-down direction and is fixed in the connector interior accommodating space. The opposite side of the first contact beam 100 and the second contact beam 200 is protruded in the corresponding direction to have a connection end 302 for transmitting / receiving an electric signal to / from an external electric device. .

9, the contact body 300 includes a first piece 310 integrally formed with the first contact beam 100, and a second piece 310 integrally formed with the second contact beam 200 And a second piece 320 integrally formed with the first piece 320. The second piece 320 may have a configuration in which the second piece 320 is separated and coupled. According to this, the first contact beam 100 and the second contact beam 200 can be made of different materials, and materials having different elasticity and shape restoring force can be easily selected.

In addition, the dimensions of the respective portions of the contact terminal 1 according to the present invention may be as shown in Fig. That is, the widths A and B of the first contact beam 100 and the second contact beam 200 may be 0.1 to 0.5 mm, and the total length C of the contact terminal 1 may be 3 to 7 mm. The width D of the fixed end 304 of the contact body 300 may be 1 to 1.6 mm and the width E of the connection end 302 may be 0.2 to 1 mm. The thickness F of the contact terminal 1 may be 0.2 to 0.5 mm.

Hereinafter, the operation and effects of the contact terminal 1 according to the present invention will be described.

6 and 7, the contact terminal 1 according to the present invention can be housed in a predetermined connector housing 2 and used. Therefore, the connector housing 2 and the contact terminal 1 can constitute a connector together.

The connector housing (2) is provided with an insertion groove (10) into which an external electric device having external electric terminals can be inserted, and a plurality of contact terminals (1) formed on the side of the insertion groove And may have a terminal accommodating hole 20 that can be accommodated. The terminal accommodating hole 20 is partially electrically connected to the insertion groove 10. Therefore, when the contact terminal 1 is housed in the terminal accommodating hole 20, the second end portion B of the first contact beam 100 is exposed to the inside of the insertion groove 10.

7, when the external electric device 3 is inserted through the insertion groove 10 as shown by the arrow I, the second end portion B of the first contact beam 100 is moved in the outward direction Lt; / RTI > At this time, the external contact portion provided at the second end portion B of the first contact beam 100 is in contact with the external electric terminal of the external electric device and is conducted.

4, as the first contact beam 100 is pushed outward as shown by the arrow F and deformed as shown by the arrow T, the first contact beam 100 is deformed as shown in FIG. 4, (100) and the second end portion (B) of the second contact beam (200) are in contact with each other. That is, as described above, the first inner contact portion of the first contact beam 100 is in contact with the second inner contact portion of the second contact beam 200.

Accordingly, the first contact beam 100 and the second contact beam 200 can be electrically connected to the external electrical terminal together. 5, the width W1 of the first contact beam 100 and the width W2 of the second contact beam 200 are combined to increase the width of the contact terminal 1, and the width of the contact terminal 1 The selectivity becomes wider, and the impedance matching can be effectively achieved.

If it is desired to achieve the impedance matching effect of the present invention in a contact terminal having only one contact beam, the width of the contact terminal must be increased. If the width of the contact terminal is increased as described above, the contact force due to the elasticity of the contact increases, thereby damaging the external electrical devices and connectors such as the DUT, and reducing the life of the external electrical devices and the connector .

However, as in the present invention, desired impedance matching can be achieved without increasing the resistance of the contact terminal, and high-speed signal transmission can be achieved.

As the second radius of curvature of the first terminal region 110 constituting the first internal contact portion is smaller than the fourth radius of curvature of the second terminal region 210 constituting the second internal contact portion, A larger contact area between the beam 100 and the second contact beam 200 can be ensured. That is, it is possible to achieve a two-point contact or a substantial face contact through a curved surface rather than simply making a one-point contact.

As described above, as the distance between the first contact beam 100 and the second contact beam 200 becomes narrower from the first end portion A to the second end portion B, One contact beam 100 is not deformed much and is easily contacted with the second contact beam 200 even by a small deformation, and the effect of improving the impedance matching and the transmission speed can be more easily ensured. In addition, since the first contact beam 100 only requires a small deformation, the first contact beam 100 easily retains its shape and elasticity and is prevented from being permanently deformed, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

1: Contact terminal
100: first contact beam
110: first end region
112: first downward convex surface
114: second downward convex surface
200: second contact beam
210: second end region
212: third downward convex surface
300: Contact body
302:
304: Fixed end
310: First piece
320: second piece
400: Spacing space

Claims (11)

A contact terminal (1) mounted on a connector and brought into contact with an external electrical terminal,
A first contact beam (100) extending with a predetermined length and in contact with an external electrical terminal;
A second contact beam (200) located on the first contact beam (100) and extending with a predetermined length; And
And a contact body 300 connecting the first contact beam 100 and the second contact beam 200 to each other,
The first contact beam 100 and the second contact beam 200 are located on the same line in the vertical direction,
The first contact beam 100 and the second contact beam 200 are connected to each other in a direction perpendicular to the direction from the first end portion A connected through the contact body 300 to the second end portion B opposite to the first end portion A, Extending in a spaced-apart relationship with a predetermined spacing,
The first contact beam (100) and the two contact beams
And a third curvature radius that is smaller than a first end portion (A) connected to the contact body (300), and a second curvature radius The portion B is positioned further downward in the vertical direction,
The distance between the first contact beam 100 and the second contact beam 200 becomes narrower from the first end portion A toward the second end portion B,
The first contact beam (100)
And a first end region (110) formed in the second end portion (B) so as to be curved upward and curved upward,
A first downward convex surface 112 and a second downward convex surface 114 which are downwardly convex are formed on the lower and upper portions of the first terminal region 110,
The first downward convex surface 112 constitutes an external contact portion contacting the external electrical terminal,
The second downward convex surface 114 constitutes a first inner contact portion,
The second contact beam (200)
And a second end region 210 formed in the second end portion B so as to be bent in an upward direction,
A third downward convex surface 212 is formed on a lower surface of the second terminal area 210. The third downward convex surface 212 constitutes a second inner contact part,
When the external electrical terminal contacts the first contact beam 100, the external electrical terminal pushes the second end portion B of the first contact beam 100 upward to move the first contact beam 100, The second end portion B of the first contact beam 100 is displaced upward so that the first inner contact portion and the second inner contact portion are in contact with each other,
The outer contact portion, the first inner contact portion, and the second inner contact portion are located on the same line,
Wherein a width of a portion where the contact terminal (1) contacts the external electric terminal has a size which is a sum of a width of the first contact beam (100) and a width of the second contact beam (200). delete delete delete delete The method according to claim 1,
Wherein the first radius of curvature of the first contact beam (100) is greater than the third radius of curvature of the second contact beam (200). delete delete The method according to claim 1,
The first end region 110 has a second radius of curvature,
The second terminal region 210 has a fourth radius of curvature,
Wherein the second radius of curvature is less than the fourth radius of curvature so that the first end region (110) is more curved upward than the second end region (210). The method according to claim 1,
The contact body 300 includes:
A first piece and a second piece so as to be separated and combined in the vertical direction,
The first piece is integrally formed with the first contact beam 100,
And the second piece is integrally formed with the second contact beam (200). A contact terminal (1) according to any one of claims 1, 6, 9 and 10; And
Connector housing; Further comprising:
The connector housing includes:
An insertion groove into which an external electric device having an external electric terminal can be inserted, and
A plurality of terminal accommodating holes formed in a side portion of the insertion groove, the terminal accommodating holes being capable of accommodating the contact terminals,
The contact terminal (1)
The second end portion B of the first contact beam 100 is exposed to the inside of the insertion groove while being accommodated in the terminal accommodating hole,
At least a part of the contact body 300 is protruded to the outside of the terminal accommodating hole and is exposed to the outside of the connector housing,
When the external electronic device is inserted into the insertion groove, the second end of the first contact beam 100 is pushed outwardly of the insertion groove to contact the second end portion B of the second contact beam 200 The contact terminal (1).
KR1020160034641A 2016-03-23 2016-03-23 Contact and connector KR101775604B1 (en)

Priority Applications (1)

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KR1020160034641A KR101775604B1 (en) 2016-03-23 2016-03-23 Contact and connector

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KR1020160034641A KR101775604B1 (en) 2016-03-23 2016-03-23 Contact and connector

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102132662B1 (en) * 2019-09-16 2020-07-13 주식회사 마이크로컨텍솔루션 Test socket

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050142948A1 (en) * 2003-12-31 2005-06-30 Wei-Chen Lee Electrical connector having improved contact

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050142948A1 (en) * 2003-12-31 2005-06-30 Wei-Chen Lee Electrical connector having improved contact

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102132662B1 (en) * 2019-09-16 2020-07-13 주식회사 마이크로컨텍솔루션 Test socket

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