KR20170141381A - Contactor with guide and mobile electronic apparatus with the same - Google Patents

Abstract

Provided are a guide-coupled contactor and a portable electronic device having the same. The guide-coupled contactor according to one embodiment of the present invention comprises: a conductive elastic portion having elasticity and electrically connected to a circuit board of an electronic device or a bracket joined to the circuit board; a functional element connected to the conductive elastic portion to have at least one function among an electric shock prevention function for shutting down leakage current of the outer power introduced from the grounding of the circuit board of the electronic device, a communication signal transmission function for transmitting a communication signal introduced from the conductive case or the circuit board, and an ESD protection function for preventing breakdown which could be caused by static electricity introduced from the conductive case and making the static electricity pass; and a guide having a through-hole into which the functional element is inserted and a shape corresponding to a groove portion formed in the conductive case of the electronic device, wherein the inner surface of the through-hole comes into close contact with the outer surface of the functional element to fix the functional element. Additionally, the upper and lower surfaces of the functional element inserted into the through-hole are filled with conductive filling materials.

Description

[0001] The present invention relates to a contact-type contactor and a portable electronic device having the same.

The present invention relates to a contactor for an electronic device such as a smart phone, and more specifically, it is possible to further implement at least one function of an ESD protection function, an electric shock prevention function, and a communication signal transfer function in addition to a contactor unique function, And a portable electronic device having the contact-type contactor. 2. Description of the Related Art

In recent portable electronic devices, there is an increasing tendency to adopt a metal housing to improve esthetics and robustness. Such a portable electronic device alleviates an impact from the outside and simultaneously penetrates into the portable electronic device or reduces the electromagnetic waves leaked from the portable electronic device and provides an external housing and a portable electronic device for electrical contact between the antenna disposed in the external housing and the internal circuit board. A conductive gasket or a conductive contactor is used between the internal circuit boards of the electronic device.

However, since the electrical path can be formed between the external housing and the internal circuit board by the conductive gasket or the conductive contactor, when static electricity having an instantaneous high voltage flows through a conductor such as an external metal housing, The static electricity may flow into the internal circuit board through the conductive gasket or the conductive contactor to damage the circuit such as the IC and the leakage current generated by the AC power may propagate to the external housing along the ground portion of the circuit, In extreme cases, it may cause an electric shock which may cause injury to the user.

In addition, when the metal housing is used as an antenna, the conductive gasket or the conductive contactor has a low capacitance, so that the signal is attenuated and transmission of the RF signal is not smooth, so that it is necessary to realize a high capacitance. A protective element for protecting the user from such static electricity or leakage current is provided together with a conductive gasket or a conductive contactor for connecting the metal housing and the circuit board, There is a need for a functional contactor having various functions for protecting a circuit in a portable electronic device or for smoothly transmitting a communication signal.

Further, when the functional contactor is coupled to the conductive case, it is difficult to perform soldering and stable connection is required. The functional contactor must be designed according to the shape of the groove of the conductive case according to the bonding position, Which is a large amount.

KR 2007-0109332 A (November 15, 2007 open)

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a contactor with an additional function in addition to its own function, thereby realizing various functions as described above without increasing the number of components or increasing the size of an electronic device. A contact-type contactor capable of stably coupling to a conductive case of a device, and a portable electronic device having the same.

Further, the present invention provides a guide-type contactor and a portable electronic device having the guide-contact-type contactor, which can be easily applied to various types of conductive cases by simply changing the guide and simplify the manufacturing process There is another purpose.

In order to solve the above-described problems, the present invention provides an electronic device comprising: a conductive elastic part having an elastic force to electrically contact a circuit board of an electronic device or a bracket coupled to the circuit board; An electric shock prevention function connected to the conductive elastic part for blocking a leakage current of an external power source flowing from the ground of the circuit board of the electronic device, a communication signal transmitting function for passing a communication signal flowing from the conductive case or the circuit board And a function of at least one of an ESD protection function for allowing the static electricity to pass therethrough without causing insulation breakdown when static electricity flows from the conductive case; And a through hole into which the functional device is inserted, wherein an inner surface of the through hole is in close contact with an outer surface of the functional device to fix the functional device, and the shape corresponding to the groove provided in the conductive case of the electronic device is And the conductive filler is filled on the upper surface and the lower surface of the functional device inserted into the through hole.

According to a preferred embodiment of the present invention, at least one of the upper and lower surfaces of the guide is plated with a conductive metal and can be electrically connected to the filler.

In addition, the filler may be applied to at least one of the upper and lower surfaces of the guide.

Further, the functional element can be fixed in the through-hole by pressing the upper surface or the lower surface of the guide.

In addition, a portion of the inner surface of the through-hole may be formed to penetrate at least one surface of the upper surface and the lower surface of the functional device.

The guide may be formed of any one of polyester, polyethylene terephthalate (PET), and epoxy.

In addition, the guide may be cut from a plate-shaped resin including any one of the nonconductive members.

The conductive elastic part may be any one of a conductive gasket, a silicone rubber pad, and a C-clip.

The conductive elastic portion may also be in line or point contact with the circuit board or the bracket to reduce galvanic corrosion.

The functional device may further include: a body connected to the conductive elastic part; And a first electrode and a second electrode arranged opposite to each other with a predetermined gap therebetween.

The functional device may further include a gap formed between the first electrode and the second electrode.

Also, a discharge material layer may be formed on part or all of the voids.

The functional device further comprises at least two varistor material layers alternately stacked with a first varistor material layer and a second varistor material layer; A plurality of first electrodes spaced a predetermined distance L from the first varistor material layer; And a plurality of second electrodes spaced apart from each other by a predetermined distance L on the second varistor material layer.

Meanwhile, the present invention provides a contact-type contactor as described above; And a conductive case having a groove portion to which the guide-engaging contactor is engaged, wherein the conductive elastic portion of the guide-engaging contactor contacts the circuit board or the conductive bracket coupled to one side of the circuit board, Device.

According to the present invention, by providing the guide corresponding to the groove portion of the conductive case separately from the functional element, it is possible to provide various types of guides without limiting the thickness and the shape of the guide.

Further, according to the present invention, since the guide corresponding to the groove portion of the conductive case is provided integrally with the contactor, even when the conductive case is roughly machined by using a drill having a relatively large diameter when machining the groove, Can be filled by the guide. Therefore, it is possible to improve the manufacturing time and efficiency while providing stable coupling, and furthermore, it is possible to provide the customized device according to the specification of the customer, so that it can respond quickly to the request of the customer.

Further, in the present invention, it is not necessary to additionally use a material for fixing the functional element to the guide by pressing and molding the cold functional element while inserting the functional element into the plate for forming the guide, And the occurrence of the defective rate can be reduced.

Further, according to the present invention, a functional element and / or a conductive elastic part are combined on a plate for forming a guide, and a plate is cut according to the shape of the groove part to form a guide to form a guide- The assembling process of the contactor can be effectively controlled, the ease of handling the contactor can be improved, and the occurrence of the defect rate can be reduced.

In addition, the present invention can produce a large number of contactors combined with cutter-shaped guides by performing a press process on a plate for forming a guide with a functional device coupled using a plurality of cutters, It can respond quickly.

1 is a sectional view of an example in which a guide-engaging contactor according to an embodiment of the present invention is applied to a portable electronic device;
2 is a perspective view of a conductive case of the portable electronic device of Fig. 1, Fig.
FIG. 3 is a perspective view showing a state where a guide-engaging contactor according to an embodiment of the present invention is coupled to a conductive case, FIG.
FIG. 4 is a perspective view of an example of a guide to which a functional element constituting a guide-coupled contactor according to an embodiment of the present invention is coupled;
5 is a cross-sectional view of an example of a guide-engaging contactor according to an embodiment of the present invention,
6 is a cross-sectional view of another example of a guide-coupled contactor according to an embodiment of the present invention,
FIG. 7 is a perspective view schematically showing a part of a plate-shaped resin in a process for forming a guide of a guide-engaging contactor according to an embodiment of the present invention;
8 and 9 are cross-sectional views showing various forms of a functional element and a conductive elastic part in a guide-engaging contactor according to an embodiment of the present invention, and Fig.
10A, 10B and 11 are cross-sectional views showing various forms of functional devices in a guide-coupled contactor according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same reference numerals are assigned to the same or similar components throughout the specification.

The contact-coupled contactor 100 according to an embodiment of the present invention includes a conductive elastic part 110, a functional device 120, and a guide 130, as shown in FIG.

The guide-type contactor 100 is for electrically connecting the conductive case 11 such as an external metal case to the circuit board 12 or the conductive bracket 13 in a portable electronic device.

Here, the circuit board 12 may be coupled to one side of the conductive bracket 13. At this time, the conductive bracket 13 may be made of a conductive material, for example, magnesium (Mg). Accordingly, the circuit board 12 may be electrically connected to the conductive bracket 13. [

Meanwhile, the portable electronic device may be in the form of a portable electronic device that is portable and portable. For example, the portable electronic device may be a portable terminal such as a smart phone, a cellular phone, and the like, and may be a smart watch, a digital camera, a DMB, an electronic book, a netbook, a tablet PC, Such electronic devices may comprise any suitable electronic components including antenna structures for communication with external devices. In addition, it may be a device using local area network communication such as Wi-Fi and Bluetooth.

Here, as shown in Figs. 1 and 2, the conductive case 11 may be provided, for example, to partially surround or partially surround the side portion of the portable electronic device, It may be an antenna for communication.

The conductive case 11 is formed with a groove 11a for coupling the guide-engaging contactor 100 to the inner surface, that is, the surface of the circuit board 12 or the bracket 13, do. Here, the guide-type contactor 100 may be coupled to the groove 11a through the conductive adhesive layer 132.

As described above, the groove portion 11a is formed in the conductive case 11, and the guide-type contactor 100 is coupled using the conductive adhesive layer 132, So that it is possible to improve the degree of freedom of design.

As a result, manufacturing cost can be reduced by omitting a separate medium such as FPCB that can be mounted by soldering, and electric characteristics can be improved by eliminating the performance degradation factor due to deterioration of the medium.

The groove 11a may be formed by a metal mold in the production of the conductive case 11, but may be formed by milling the conductive case 11 manufactured in the manufacturing process. For example, the groove 11a may be formed by an end-mill process.

In this case, since the guide-type contactor 100 includes the conductive elastic part 110 and the functional device 120 integrally, the size of the groove part 11a can be reduced, So that manufacturing cost and time can be saved.

Here, in the case of forming the trench 11a through end milling, as shown in Fig. 2, an opening portion parallel to the trench 11a may be formed in the outer side of the conductive case 11 together. At this time, the open portion may be formed on the path that the end mill forms the groove portion 11a and separates from the conductive case 11. [

The conductive elastic part 110 is in electrical contact with the circuit board 12 or the conductive bracket 13 and may have an elastic force. The conductive elastic part 110 may be a conductive gasket, a silicone rubber pad, and a clip-shaped conductor having elasticity.

When the conductive elastic part 110 is in contact with the circuit board 12 or the conductive bracket 13, the conductive elastic part 110 is pressed against the circuit board 12 or the conductive bracket 13, When the conductive case 11 is detached from the circuit board 12 or the conductive bracket 13, the conductive case 11 can be contracted or bent to the conductive case 11 side Can be restored.

On the other hand, when the conductive elastic part 110 contacts the circuit board 12 or the conductive bracket 13, galvanic corrosion occurs due to a potential difference between the dissimilar metals. At this time, in order to minimize galvanic corrosion, it is preferable that the conductive elastic portion has a small contact area with the circuit board 12 or the conductive bracket 13.

That is, the conductive elastic part 110 may be configured not only in surface contact with the circuit board 12 or the conductive bracket 13, but also preferably in line contact and / or point contact. For example, in the case where the conductive elastic part 110 is a conductive gasket or a silicone rubber pad, in the case of a clip-shaped conductor in surface contact with the circuit board 12 or the conductive bracket 13, line contact and / Point contact.

1, one side of the conductive elastic part 110 may be in surface contact with the conductive case 11, and the other side thereof may be electrically connected to the functional device 120, as described above.

The functional device 120 is electrically connected to the conductive elastic part 110 in series and the conductive elastic part 110 may be stacked on the upper surface of the functional device 120, for example.

5, the conductive elastic part 110 and the functional device 120 are coupled by the conductive adhesive layer 111. However, the conductive elastic part 110 and the functional device 120 are not limited thereto and may be coupled through soldering. For example, the conductive elastic portion 110 may be coupled to the functional device 120 through a reflow soldering process.

Although not shown in the drawing, the functional device 120 has a receiving part at one side coupled with the conductive elastic part 110, and a part of the conductive elastic part 110 is inserted into the receiving part, . ≪ / RTI >

4 and 5, the functional device 120 includes a body 120a and a first electrode 121 and a second electrode 122 disposed at regular intervals in the body 120a.

The functional device 120 may cut off the leakage current of the external power source flowing into the conductive case 11 from the ground of the circuit board 12. At this time, the functional device 120 may be configured such that the breakdown voltage Vbr or the breakdown voltage thereof is greater than the rated voltage of the external power supply of the electronic device. Here, the rated voltage may be a standard rated voltage for each country, for example, 240V, 110V, 220V, 120V, and 100V.

When the conductive case 11 has an antenna function, the functional device 120 is connected to the capacitor 120 through the first electrode 121 and the second electrode 122 disposed at regular intervals in the body 120a So that the leakage current of the external power supply can be cut off and the communication signal flowing from the conductor or the circuit board can be passed.

In addition, the functional device 120 can pass static electricity (ESD) that is introduced without being insulated by the electrostatic discharge (ESD) flowing from the conductive case 11. At this time, the functional device 120 may be configured such that the breakdown voltage Vbr thereof is smaller than the insulation breakdown voltage Vcp of the body 120a.

Therefore, the guide-type contactor 100 electrically connects the conductive case 11 and the circuit board 12 with respect to a communication signal, an electrostatic discharge (ESD), or the like, The leakage current of the external power source can be blocked from being transmitted to the conductive case 11.

The contact-type contactor 100 includes the conductive elastic part 110 and the functional device 120 in an integrated manner so that the conductive elastic part 110 and the functional device 120 are disposed So that it is suitable for miniaturization of a portable electronic device.

The space for coupling the guide-engaging contactor 100 to the conductive case 11 is minimized so that the conductive case 11 is formed with the groove 11a (see FIGS. 2 and 3) ), It is possible to reduce manufacturing cost and time.

The guide 130 is a medium for fixing the functional device 120 integrally formed with the conductive elastic part 110 and coupling the functional device 120 to the conductive case 11, And is coupled to the groove portion 11a. At this time, the guide 130 may be coupled to the groove 11a through a conductive adhesive layer 132 such as a conductive adhesive film.

4, the guide 130 includes a through hole 131 having a shape corresponding to the functional device 120 at a central portion thereof. The functional device 120 may be inserted into the through hole 131 and may be fixed to the inner surface of the through hole 131 through the forming process of the guide 130.

The plate-like resin 130a for producing the guide 130 or the guide 130 is nonconductive, and a material containing a non-crystalline solid or semi-solid synthetic polymer material may be used.

For example, the plate-like resin 130a is formed of a soft or hard plastic such as polyester, PET (polyethylene terephthalate), or epoxy, and the plate-like resin 130a is not limited to a plastic material, And may be formed of resin of various materials.

Referring to FIG. 7, the guide 130 may be formed from a resin (hereinafter referred to as a plate-like resin) 130a in the form of a board or a plate having a specific thickness. The plate-shaped resin 130a for forming the guide 130 may be formed through a process such as rape casting.

A plurality of through-holes 131 for inserting the functional device 120 are formed during the process of forming the plate-shaped resin 130a. At this time, the through-holes 131 are formed by being selectively emptied during the application of the resin 130a Or the wettability of the tape to which the resin is applied.

For example, the through-hole 131 can be formed by masking or overglazing the position at which the functional element on the tape to which the resin is to be applied is determined to determine the wettability with respect to the resin. The through-hole 131 can be formed by applying a resin to a tape and punching it.

The function device 120 is inserted into the through hole 131 formed in the plate resin 120 and at least one surface of the upper surface and the lower surface of the plate resin 130a inserted with the functional device 120 is pressed, So that the plate-like resin 130a can be pressed.

As shown in FIG. 4, the plate-like resin 130a is compressed in the upward / downward direction to decrease in height, and the area of the pressing surface increases so that the inner surface of the through hole 131 expands toward the functional device 120 And is brought into close contact with the outer surface of the functional device 120 to fix the functional device 120 in the through-hole 131.

4, the plate-shaped resin 130a, which is pressed in the lateral direction of the functional device 120, penetrates at least one surface of the upper surface and the lower surface of the functional device 120, And can be prevented from being detached from the through hole (131).

In this manner, the forming process of the guide 130 is performed in a state where the functional device 120 is inserted into the through hole 131, and the through hole 131, which is deformed to enclose the functional device 120 according to the forming process, It is possible to prevent the functional device 120 from being pushed and / or released from the through hole 131 and thus the functional device 120 and the guide 130 can be stably coupled .

As described above, the guide 130 is not limited to fixing the functional device 120 to the through-hole 131 through the molding process, and the density and thickness of the generated guide can be easily controlled.

The fillers 113 and 115 may be filled (or sealed) in at least a part of the upper surface and the lower surface of the functional device 120 fixed to the guide 130. The fillers 113 and 115 filled in the through holes 131 of the guide 130 may be formed of a conductive paste containing metals such as gold, silver, copper, and aluminum.

The fillers 113 and 115 to be filled in the through hole 131 of the guide 130 may be either the same as or similar to the guide 130 when the height difference between the upper surface and / And can be charged at similar heights. When the plating layer (not shown) is formed on the upper surface and / or the lower surface of the guide 130, the fillers 113 and 115 may be electrically connected to the formed plating layer.

For example, the guide 130 may be formed with a plating layer on the upper surface and / or the lower surface. The plating layer formed on the guide 130 may be formed before the functional element 120 is inserted into the through hole 131 in the process of forming the plate-shaped resin 130a. The plating layer may be formed on the surface of the plate-like resin 130a including a conductive material such as gold, silver, copper, and aluminum.

That is, by forming the fillers 113 and 115 on the upper and lower portions of the functional device 120, two electrodes (for example, the first electrode 121 and the second electrode 122) 115 of the upper and lower surfaces of the upper surface 130a.

According to various embodiments, in filling the filler material 113, 115 into the surface (e.g., the upper surface and / or the lower surface) of the functional device 120 fixed to the through hole 131 of the guide 130, Or at least a part of the lower surface of the substrate.

For example, as shown in FIG. 6, the fillers 113 and 115 are not limited to being filled in the through-hole 131 to which the functional element 120 is fixed, but may be extended to the surface of the guide 130, .

As described above, the filling material 113, 115 to be filled in the through hole 131 is extended to the surface of the guide 130, and the electrode (for example, the first electrode 121 and / or the second It is possible to increase the area of the electrode 122 and to improve the electrical conductivity of the functional device 120.

7, the shape of the guide 130 constituting the guide-engaging type functional element 120 or the guide-engaging contactor 100 is such that the functional element 120 penetrates through the through-hole 131 of the plate- Shaped resin 130a so as to include at least one functional device 120 in a state where the plate-like resin 130a is fixed inside the plate-shaped resin 130a.

The conductive elastic part 110 may be coupled to the upper surface of the filler 115 of the guide-type functional device 120 cut from the plate-like resin 130a. Here, the conductive elastic part 110 may be fixed to the upper surface of the filler 115 through soldering.

The conductive elastic portion 110 is described as being coupled to the filler 115 after the guide 130 is cut and formed. However, the present invention is not limited thereto, and the conductive elastic portion 110 may be formed on the upper surface of the filler 115, The plate-like resin 130a can be cut in a state where the plate-shaped resin 130 is joined.

As described above, after the guide-engaging contactor 100 is formed, the shape of the guide is determined by using a specific cutter 150 to provide contactors corresponding to the various types of grooves 11a can do. For example, the guide 130 may be cut in a cutter shape including at least one functional device 120 by performing a pressing process using a cutter.

That is, by performing a pressing process on the plate-like resin 130a to which the functional device 120 is coupled by using a plurality of cutters, a contactor having a cutter-shaped guide and a cutter- It can be produced in large quantities.

Further, according to the present invention, the functional element 120 and / or the conductive elastic part are bonded on the plate-like resin 130a for forming the guide, and the plate-like resin 130a is cut according to the shape of the groove to generate the guide- , It is possible to effectively control the assembling process of the small-sized elements, to improve the ease of handling the contactor, and to reduce the occurrence of defective rate.

In cutting the plate-shaped resin 130a so as to include at least one functional element 120, the conductive adhesive layer 132 may be formed on the lower surface of the plate-shaped resin 130a. For example, it is possible to cut the plate-like resin 130a in a state where the conductive adhesive layer 132 is attached to the lower part of the plate-like resin 130a, and to form the adhesive layer to bond the produced contactor to the groove 11a Can be effectively handled.

The guide 130 may include a part of the upper surface of the guide 130 and a wiring for electrically connecting the conductive adhesive layer 132 coupled to the lower surface of the guide 130. At this time, a part of the upper surface of the guide 130 may function as a contact point of the test point.

As described above, the guide-type contactor 100 according to the embodiment of the present invention includes the guide 130 in addition to the integrated structure of the conductive elastic part 110 and the functional device 120, It is possible to change the shape of the guide 130 to be generated by changing only the shape of the cutter 150 according to the specification of the conductive case 11 and thus it is easy to provide a customized device according to the specification of the customer, You can respond quickly to your needs.

Further, when the guide-engaging contactor 100 is minimized, a drill having a relatively large diameter is used or roughly machined to improve the efficiency of the machining process of the groove 11a of the conductive case 11 The guide 130 can fill the remaining space of the groove portion 11a even when the groove portion 11a having an area larger than the size of the guide-engaging contactor 100 is formed, It is possible to shorten the machining time of the groove 11a and to simplify the machining method while improving the manufacturing efficiency.

8 to 11, the conductive elastic part 110 integrally formed in the guide-engaging contactor 100 according to an embodiment of the present invention and the functional device 120 are described in more detail do.

8, when the conductive elastic portion is a clip-shaped conductor 210, the clip-shaped conductor 210 includes a contact portion 211, a bent portion 212, and a terminal portion 213.

Here, the clip-shaped conductor may be a C-clip having a roughly " C " shape. Since the clip-shaped conductor 210 is in line contact or point contact with the circuit board 12 or the bracket 13, resistance to galvanic corrosion can be excellent.

The contact portion 211 has a curved shape and can be in electrical contact with the circuit board 12 or the conductive bracket 13 as shown in FIG. The bent portion 212 extends from the contact portion 211 and may have an elastic force. The terminal unit 213 may include a terminal electrically connected to the electric shock protection unit 120.

The contact portion 211, the bent portion 212, and the terminal portion 213 may be integrally formed of a conductive material having an elastic force.

The functional device 120 may include a first electrode 121, a second electrode 122, and a body 120a. The functional device 120 may be a capacitor.

The first electrode 121 is disposed below the functional device 120 and is exposed to the outside of the guide 130. The first electrode 121 may be coupled to the groove portion 11a of the conductive case through the conductive adhesive layer 132.

The second electrode 122 is disposed on the upper side of the functional device 120 and is electrically connected to the lower side of the conductive elastic part.

At this time, the conductive adhesive layer 111 may be applied to the second electrode 122 on the upper surface of the functional device 120, and the conductive elastic part may be laminated through the conductive adhesive layer 111. Here, the conductive adhesive layer may be a conductive adhesive film. Alternatively, the conductive elastic part may be laminated to the functional element 120 through soldering.

The body 120a may be formed between the first electrode 121 and the second electrode 122. Here, the elementary body 120a is integrally formed by a plurality of sheet layers sequentially stacked, electrodes provided on one surface of each of which are arranged so as to face each other, and then subjected to a pressing and firing process.

Such a body 120 may be made of an insulator having a dielectric constant, for example, a ceramic material. At this time, the ceramic material is a metal-based oxide compound, and the metal-based oxide compound may include at least one selected from Er2O3, Dy2O3, Ho2O3, V2O5, CoO, MoO3, SnO2, BaTiO3, and Nd2O3.

Here, the functional device 120 has a capacitance that is greater than the rated voltage of the external power source of the electronic device and allows the communication signal from the conductive case 11 or the circuit board 12 to pass therethrough The dielectric constant of the body 120a, the thickness between the first electrode 121 and the second electrode 122, and the respective areas can be set.

The functional device 120 configured as described above can prevent damage to the user or damage to the internal circuit such as electric shock through the conductor, like the conductive case 11. For example, when the leakage current of the external power source flows from the ground of the circuit board 12 or the conductive bracket 13 of the electronic device, the functional device 120 may be connected to the first electrode 121 and the second electrode 122 are larger than the rated voltage of the external power supply, the leakage current can be blocked without passing through.

In addition, when the communication signal is inputted from the conductive case 11 or the circuit board 12, the functional device 120 may function as a capacitor to perform a communication signal transfer function.

In addition, when the electrostatic discharge (ESD) flows from the conductive case 11, the functional device 120 can discharge the electrostatic discharge (ESD) through the gap between the first electrode 121 and the second electrode 122, . Such an electrostatic discharge (ESD) can be transmitted to the ground of the circuit board to protect the internal circuit.

As shown in FIG. 9, when the conductive elastic part is the conductive gasket 310, the conductive gasket 310 may be integrally formed of a conductive material having an elastic force.

For example, the conductive gasket 310 may include at least one of a polymer body, a natural rubber, a sponge, a synthetic rubber, a heat-resistant silicone rubber, and a tube made of a conductive paste by thermocompression bonding. The conductive gasket is not limited thereto and may include a conductive material having an elastic force.

For example, when the conductive gasket 310 is a silicone rubber pad, the silicone rubber pad may include a body and a conductive wire. The body may be made of silicone rubber and one side thereof may be in surface contact with the circuit board 12 or the conductive bracket 13 and the other side thereof may be electrically connected to the functional device 120.

In addition, the conductive wire may be vertically and / or obliquely formed inside the body. This conductive wire is intended to improve the electrical contact with the circuit board 12 or the conductive bracket 13 and to complement the elasticity of the body.

According to such a conductive wire, the conductive gasket 310 is excellent in transmission of a communication signal, has good elastic restoring force, and can be used for a long period of time.

Alternatively, the conductive gasket 310 may comprise a silicone rubber pad comprising conductive particles. Such a body of the silicone rubber pad may include a conductive portion in which the conductive silicone rubber and the conductive particles are regularly or irregularly dispersed and a through hole including the conducting portion.

At this time, when the pressure or heat is not externally applied to the conductive particles, the conductive particles are not separated from each other and are not energized. When pressure or heat is externally applied, the conductive particles may contact each other due to shrinkage of the conductive silicone rubber, .

Such a conductive part can realize electrical contact with the circuit board 12 or the conductive bracket 13 by the conductive particles, and shrinkage and expansion can be realized by the conductive silicone rubber. Therefore, the conductive portion can simultaneously provide electrical contact and elastic restoring force by pressurization.

1, one side of the conductive elastic part 110 may be in surface contact with the conductive case 11 and the other side thereof may be electrically connected to the functional device 120, as shown in FIG.

10A and 10B schematically illustrate an example in which the functional element 120 is configured as a surpressor. As shown therein, in the present invention, the functional element 120 includes a body 120a, And first and second electrodes 121 and 122 spaced apart from each other by a predetermined distance.

The lower surface of the elementary body 120a is provided with an external electrode 125b for mounting the conductive case 11 through the conductive adhesive layer 132. The upper surface of the elementary body 120a is connected to the conductive elastic part 110, (125a) may be provided. Intermediate electrodes 123a and 123b connected to the external electrode 125b and the connection electrode 125a may be provided on both sides of the body 120a. That is, the intermediate electrode 123a may be connected to the external electrode 125b, and the intermediate electrode 123b may be connected to the connection electrode 125a. Alternatively, the external electrode 125b and the connection electrode 125b may be provided on the side surface of the body 120a.

The first and second electrodes 121 and 122 are spaced apart from each other within the body 120a and may be formed of at least one pair. The first electrode 121 and the second electrode 122 may be vertically opposed to each other. Here, the first electrode 121 may be connected to the intermediate electrode 123a, and the second electrode 122 may be connected to the intermediate electrode 123b.

The first electrode 121 and the second electrode 122 and the intermediate electrodes 123a and 123b may include any one or more of Ag, Au, Pt, Pd, Ni, and Cu. And the connection electrode 125a may include any one or more of Ag, Ni, and Sn components.

The first electrode 121 and the second electrode 122 may have various shapes and patterns. The first electrode 121 and the second electrode 122 may have the same pattern, But may be provided to have different patterns. That is, the first electrode 121 and the second electrode 122 are not limited to a specific pattern when the first electrode 121 and the second electrode 122 are disposed so as to overlap with each other when the first electrode 121 and the second electrode 122 are opposed to each other.

The interval between the first electrode 121 and the second electrode 122 may be an interval to satisfy the breakdown voltage Vbr of the functional device 120 and may be, for example, 10 to 100 탆 .

Referring to FIG. 10A, a gap 127 may be formed between the first electrode 121 and the second electrode 122. 10B, a discharge material layer 129 may be formed on part or all of the voids 127 formed. For example, the gap 127 may be filled with the discharge material layer 129 or may be coated or coated along the inner wall. Here, the discharge material constituting the discharge material layer 129 has a low dielectric constant, no conductivity, and no short circuit when an overvoltage is applied.

For this purpose, the discharge material may be made of a non-conductive material including at least one kind of metal particles, and may be made of a semiconductor material containing SiC or a silicon-based component.

For example, when the first electrode 121 and the second electrode 122 include an Ag component, the discharge material may include a SiC-ZnO-based component. Here, the discharge material includes SiC-ZnO-based materials as an example of the discharge material. However, the present invention is not limited thereto, and the discharge material may be a material suitable for the components constituting the first electrode 121 and the second electrode 122 A non-conductive material including a semiconductor material or metal particles may be used

When the functional device 120 'configured as described above is introduced from the ground of the circuit board 12 of the electronic device, the breakdown voltage Vbr between the first electrode 121 and the second electrode 122 is applied to the outside Since it is larger than the rated voltage of the power source, it can be shut off without passing the leakage current of the external power source.

In addition, when the communication signal is inputted from the conductive case 11 or the circuit board 12, the functional device 120 'acts as a capacitor to perform a communication signal transfer function.

In addition, when the functional device 120 'is introduced from the conductive case 11, the functional device 120' can generate electrostatic discharge (ESD) through the gap 127 between the first electrode 121 and the second electrode 122, Can pass. Such an electrostatic discharge (ESD) is configured to be transmitted to the ground portion of the circuit board, thereby protecting the internal circuit.

11, the functional device 220 includes a sheet layer 220a and a sheet layer 220a. The functional layer 220 is formed of a varistor, And first and second electrodes 221 and 222 spaced apart from each other.

The lower surface of the functional device 220 may include an external electrode 225b for mounting on the conductive case 11 and a connection electrode 225a for connecting the conductive elastic portion to the upper surface.

At this time, intermediate electrodes 223a and 223b connected to the external electrode 225b and the connection electrode 225a may be provided on both sides of the functional device 220, respectively. That is, the intermediate electrode 223a may be connected to the external electrode 225b, and the intermediate electrode 223b may be connected to the connection electrode 225a. Alternatively, the external electrode 225b and the connection electrode 225a may be provided on a side surface of the sheet layer 220a.

The sheet layer 220a is formed of the varistor material layer, and the first varistor material layer 220b and the second varistor material layer 220c may be alternately formed of at least two layers. Here, the first varistor material layer 220b and the second varistor material layer 220c may be any one of a semiconductive material including at least one of ZnO, SrTiO3, BaTiO3, and SiC, or a Pr and Bi-based material have.

The first electrode 221 and the second electrode 222 may include a plurality of first electrodes 221 and a second varistor material layer 220c spaced apart from each other by a predetermined distance L on the first varistor material layer 220b, And may include a plurality of second electrodes 222 spaced apart from each other by a predetermined distance L.

Here, the breakdown voltage Vbr of the functional device 220 may be the sum of breakdown voltages formed between the first and second electrodes 221 and 222, respectively.

Each of the first electrode 221 and the second electrode 222 may be disposed so that at least a part thereof is not overlapped. That is, each of the first electrode 221 and the second electrode 222 may be disposed so that at least a part of the first electrode 221 and the second electrode 222 overlap with each other, or may be crossed with each other so as not to overlap each other.

The first electrode 221 or the second electrode 222 is not leaked to an adjacent position between the first electrode 221 and the second electrode 222, The second electrode 222, and the second electrode 222. In this case,

For example, a distance L between a first electrode 221 and a neighboring first electrode 221, or a distance between one second electrode 222 and a neighboring second electrode 222, (L) may be formed to be larger than a shortest distance (d) between the first electrode (221) and the second electrode (222).

When the function device 220 constructed as described above is introduced from the ground of the circuit board 12 of the electronic device, since the breakdown voltage Vbr thereof is larger than the rated voltage of the external power source, the leakage current of the external power source passes It is possible to block it.

In addition, when the communication signal is inputted from the conductive case 11 or the circuit board 12, the functional device 220 may function as a capacitor to perform a communication signal transfer function.

In addition, when the functional device 220 is introduced from the conductive case 11, the functional device 220 can alternately propagate between the first electrode 121 and the second electrode 122 to pass the electrostatic discharge (ESD) have. Such an electrostatic discharge (ESD) is configured to be transmitted to the ground portion of the circuit board, thereby protecting the internal circuit.

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, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

11: conductive case 11a:
12: circuit board 13: bracket
100: guide-contact type contactor 110, 210, 310: conductive elastic member
113, 115: filler 120, 220:
120a: body 121: first electrode
122: second electrode 123a, 123b: intermediate electrode
125a, 225a: connection electrodes 125b, 225b: external electrodes
127: air gap 130: guide
130a: Platy resin 131: Through hole
220a: sheet layer 220b, 220c: varistor material layer
221: first electrode 222: second electrode
223a, 223b: intermediate electrode

Claims (14)

A conductive elastic part having an elastic force for electrically contacting the circuit board of the electronic device or the bracket coupled to the circuit board;
An electric shock prevention function that is connected to the conductive elastic part and blocks a leakage current of an external power source which flows from the ground of the circuit board of the electronic device, a communication signal transmission function for passing a communication signal flowing from the conductive case or the circuit board And a function of at least one of an ESD protection function for allowing the static electricity to pass therethrough without causing insulation breakdown when static electricity flows from the conductive case; And
And a through hole into which the functional device is inserted, wherein an inner surface of the through-hole is in close contact with an outer surface of the functional device to fix the functional device and has a shape corresponding to a groove provided in the conductive case of the electronic device Guide,
And the conductive filler is filled on the upper surface and the lower surface of the functional device inserted into the through hole. The method according to claim 1,
Wherein at least one of the upper and lower surfaces of the guide is plated with a conductive metal and is electrically connected to the filler. The method according to claim 1,
Wherein the filler is applied to at least one of the upper and lower surfaces of the guide. The method according to claim 1,
Wherein the functional element is fixed within the through-hole by pressing the upper or lower surface of the guide. The method according to claim 1,
And a portion of the inner side surface of the through-hole is formed to penetrate at least one of the upper surface and the lower surface of the functional device. Wherein the guide is provided as a non-conductive one of polyester, polyethylene terephthalate (PET), and epoxy. The method according to claim 6,
Wherein the guide is cut from a plate-like resin formed by including any one of the nonconductive members. The method according to claim 1,
Wherein the conductive elastic portion is one of an electrically conductive gasket, a silicone rubber pad, and a C-clip. The method according to claim 1,
Wherein the conductive elastic portion is in line or point contact with the circuit board or the bracket to reduce galvanic corrosion. 2. The display device according to claim 1,
A body connected to the conductive elastic part; And
And a first electrode and a second electrode arranged opposite to each other with a predetermined gap therebetween. 11. The method of claim 10,
Wherein the functional element further comprises a gap formed between the first electrode and the second electrode. 12. The method of claim 11,
And a layer of a discharge material is formed on part or all of the gap. 2. The display device according to claim 1,
At least two varistor material layers alternately laminated with a first varistor material layer and a second varistor material layer;
A plurality of first electrodes spaced a predetermined distance L from the first varistor material layer; And
And a plurality of second electrodes spaced apart by a predetermined distance L on the second varistor material layer. A contact-type contactor according to any one of claims 1 to 13, And
And a conductive case having a groove portion to which the guide-type contactor is coupled,
Wherein the conductive elastic portion of the guide-engaging contactor is in contact with a circuit board or a conductive bracket to which the circuit board is coupled at one side.

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