KR20170060886A - Circuit protection contactor and mobile electronic device with the same - Google Patents

Circuit protection contactor and mobile electronic device with the same Download PDF

Info

Publication number
KR20170060886A
KR20170060886A KR1020150165621A KR20150165621A KR20170060886A KR 20170060886 A KR20170060886 A KR 20170060886A KR 1020150165621 A KR1020150165621 A KR 1020150165621A KR 20150165621 A KR20150165621 A KR 20150165621A KR 20170060886 A KR20170060886 A KR 20170060886A
Authority
KR
South Korea
Prior art keywords
electric shock
shock protection
electrodes
conductor
electrode
Prior art date
Application number
KR1020150165621A
Other languages
Korean (ko)
Inventor
임병국
최윤석
황윤호
최재우
박규환
Original Assignee
주식회사 아모텍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 아모텍 filed Critical 주식회사 아모텍
Priority to KR1020150165621A priority Critical patent/KR20170060886A/en
Publication of KR20170060886A publication Critical patent/KR20170060886A/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/40—Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • 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
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2428—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using meander springs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/0015—Gaskets or seals
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/0015—Gaskets or seals
    • H05K9/0016—Gaskets or seals having a spring contact

Abstract

There is provided an electric shock protection contactor and a portable electronic device having the contactor. An electric shock protection contactor according to an exemplary embodiment of the present invention includes: an electric shock protection device for interrupting a leakage current of an external power source flowing from a ground of a circuit board of an electronic device; And a resilient gasket-shaped conductive connection portion which is disposed at least on one side in the horizontal direction with respect to the electric shock protection element, and is electrically connected in series with the electric shock protection element, and at least a part of which is in electrical contact with the electric conductor of the electronic device; . According to this structure, it is possible to prevent damage to the user such as electric shock through the conductor or breakage of the internal circuit, at the same time, to achieve thinning between the conductor and the circuit board, and to improve the stability of the contact and the service life.

Description

TECHNICAL FIELD [0001] The present invention relates to a contactor for protecting an electric shock, and a portable electronic device having the contactor.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric shock protection contactor and a portable electronic device having the same, and more particularly, to an electric shock protection contactor capable of protecting a user from a leakage current by a power source and a portable electronic device having the same.

[0003] In recent portable electronic devices, various component elements are densely arranged in the interior in accordance with miniaturization and multifunctionalization. Accordingly, a conductive gasket is used between the external housing and the internal circuit board of the portable electronic device to reduce the impact from the outside while simultaneously penetrating into the portable electronic device or reducing electromagnetic waves leaking from the portable electronic device.

In addition, the portable electronic device may have a plurality of antennas for each function in accordance with the multifunctional function, and at least a part thereof may be an internal antenna, and may be disposed in the external housing of the portable electronic device. Therefore, a conductive contactor is used for electrical contact between the antenna disposed in the external housing and the internal circuit board of the portable electronic device.

In addition, portable electronic devices have recently been increasing in adoption of housings made of metal to improve esthetics and robustness.

As a result, an electrical path can be formed between the housing and the internal circuit board by the conductive gasket or the conductive contactor. In particular, as the metal housing and the circuit board form a loop, The static electricity may flow into the internal circuit board through the conductive gasket or the conductive contactor, and the circuit such as the IC may be damaged.

On the other hand, such a portable electronic device typically uses a charger to charge the battery. Such a charger rectifies an external AC power source to a DC power source and then through a transformer to a low DC power source suitable for a portable electronic device. Here, in order to enhance the electrical insulation of the transformer, a Y-CAP composed of a capacitor is provided at both ends of the transformer.

However, when the Y-CAP does not have the normal characteristics, such as a non-genuine charger, the DC power may not be sufficiently blocked by the Y-CAP, and furthermore, a leakage current may be generated by the AC power source. Can propagate along the ground of the circuit.

Such a leakage current can be transmitted to a conductor that can be contacted with a human body as in an external case of a portable electronic device. As a result, it can give a user an unpleasant feeling of crushing. In case of severe case, There are problems that cause accidents.

Therefore, a protective element for protecting the user from such a leakage current needs to be provided in the conductive gasket or the conductive contactor connecting the metal housing and the circuit board.

In addition, when the metal housing is used as an antenna, the conductive gasket or the conductive contactor is required to realize a high capacitance because the signal is attenuated when the capacitance is low, and the RF signal is not transmitted smoothly.

Thus, there is a need for a contactor having various functions for protecting a user or a circuit in a portable electronic device as well as a simple electrical contact according to the use of a conductor such as a metal case.

However, in order to implement these various functions, additional component elements are required, and therefore, an additional space is required on the circuit board of the portable electronic device, which adversely affects miniaturization.

On the other hand, in the case of integrating the additional component element with the conductive gasket or the conductive contactor, it is necessary to form the thickness thin like the area where the thickness between the conductor and the circuit board is limited, i.e., the side key, And it is difficult to realize a laminated structure in a free portion.

At this time, when the conductive gasket or the conductive contactor is formed only on one side, the impact due to the pressing force externally applied is concentrated only on a part of the conductive gasket or the conductive contactor. Therefore, the conductive gasket or the conductive contactor is deformed to cause poor contact with the circuit board or the conductor, and the service life is shortened.

Particularly, when the conductive contactor has a clip shape, since the contact with the conductor is made by the line contact, slip or the like may occur on one side, resulting in poor contact.

Thus, the development of a contactor capable of attaining thinness against thickness between a conductor and a circuit board, and stability against contact with a human-accessible conductor and an internal circuit, while having a function for protecting a user or an internal circuit It is an urgent situation.

KR 2007-0109332A (published patent application)

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric shock protection contactor capable of protecting a user or an internal circuit and a portable electronic device having the same.

It is another object of the present invention to provide an electric shock protection contactor capable of attaining thinning between a conductor and a circuit board and a portable electronic device having the same.

Another object of the present invention is to provide a functional contactor and a portable electronic device having the functional contactor capable of uniformly dispersing a pressing force externally applied to improve contact stability and service life.

According to an aspect of the present invention, there is provided an electronic device comprising: an electric shock protection device for interrupting a leakage current of an external power source that flows from a ground of a circuit board of an electronic device; And a resilient gasket-shaped conductive connection portion which is disposed at least on one side in the horizontal direction with respect to the electric shock protection element, and is electrically connected in series with the electric shock protection element, and at least a part of which is in electrical contact with the electric conductor of the electronic device; The contactor for protecting against electric shock is provided.

According to a preferred embodiment of the present invention, the gasket-shaped conductive connection portions are formed as a pair, symmetrically arranged in the horizontal direction with respect to the electric shock protection element, and electrically connected in series to the electric shock protection element through the respective extension electrodes Can be connected.

In addition, the electric shock protection device may pass a communication signal flowing from the electric conductor.

In addition, the electric shock protection device may allow static electricity to pass therethrough without causing insulation breakdown during the introduction of static electricity from the electric conductor.

In addition, the electric shock protection housing may include a pair of external electrodes on the top and bottom surfaces thereof.

In addition, the electric shock protection device may include a pair of external electrodes on both sides.

Further, the electric shock protection device may have a breakdown voltage (Vbr) satisfying the following equation, and [Expression] Vbr> Vin, where Vin may be provided at a rated voltage of the external power source of the electronic device.

The electric shock protection unit includes an electric shock protection unit and at least one capacitor layer, and the electric shock protection unit has a breakdown voltage Vbr satisfying the following formula: Vbr> Vin, Vcp> Vbr, Vin is the rated voltage of the external power supply of the electronic device, and Vcp is the total breakdown voltage of the capacitor layer.

The gasket type conductive connection portion may include at least one of paper, synthetic resin, hemp, natural rubber, synthetic rubber, asbestos, leather, copper, lead, mild steel and conductive paste.

The lead electrode may be a horizontal electrode extending through the body of the gasket-shaped conductive connection portion to the outside.

In addition, any one of the gasket-shaped conductive connection portions may be provided with an insulating layer between itself and the conductor, and another insulating layer may be provided between the conductive connecting portion and the circuit board.

In addition, the electric shock protection housing may be spaced apart from the conductor and the circuit board by a predetermined distance.

In addition, each of the gasket-shaped conductive connection portions may have a groove portion formed on a side surface facing each other, and the functional device may be inserted into the groove portion and connected to the lead electrode.

The electric shock protection housing may include: a body having a plurality of sheet layers stacked; At least a pair of internal electrodes formed at predetermined intervals in the inside of the body; And a gap formed between the internal electrodes.

Further, the pair of internal electrodes may be arranged on the same plane.

The gap may include a layer of a discharge material applied to the inner wall at a predetermined thickness along the height direction.

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

The breakdown voltage Vbr may be the sum of breakdown voltages formed between the first and second inner electrodes adjacent to each other.

The plurality of first inner electrodes and the plurality of second inner electrodes may be arranged so that at least some of the first inner electrodes and the plurality of second inner electrodes overlap or do not overlap with each other.

The spacing L between the plurality of first inner electrodes or between the plurality of second inner electrodes may be a distance between the shortest distance d1 between the first inner electrode and the second inner electrode, May be greater than the shortest distance (d2) between the neighboring first internal electrode and the second internal electrode.

In addition, the capacitor layer may be electrically connected in parallel with the electric shock protection portion.

The gap between the capacitor layer and the electric shock protection unit may be larger than the interval between the pair of internal electrodes of the electric shock protection unit.

The electric shock protection housing may include: a body having a plurality of sheet layers stacked; An electric shock protection unit including at least a pair of internal electrodes formed at predetermined intervals in the inside of the body, and a gap formed between the internal electrodes; And at least one laminated capacitor layer for passing the communication signal.

According to another aspect of the present invention, A circuit board; And an electric shock protection contactor disposed between the electric conductor and the circuit board so as to be electrically connected in series, wherein the electric shock protection contactor includes: an electric shock shielding unit for shielding a leakage current of an external power source, A protection element; And a resilient gasket-shaped conductive connection portion which is disposed at least on one side in the horizontal direction with respect to the electric shock protection element, and is electrically connected in series with the electric shock protection element, and at least a part of which is in electrical contact with the electric conductor of the electronic device; Wherein the leakage current of the external power source flowing from the ground of the circuit board of the electronic device is cut off.

According to a preferred embodiment of the present invention, the conductor may include at least one of an antenna for communication between the electronic device and the external device, a metal case, and conductive ornaments.

In addition, the contactor for protection against electric shock may be disposed in a region where the thickness between the conductor and the circuit board is limited.

Further, the area where the thickness is limited may include a side key.

According to the present invention, in the portable electronic device in which the conductor such as the metal case is exposed to the outside, the contactor connecting the conductor and the circuit board is provided with the electric shock protection device, so that the user's damage such as electric shock through the electric conductor, Can be prevented.

Further, since the electric shock protection device and the contactor are integrally provided, a separate device for realizing the function and an additional space of the device are not required, so that the portable electronic device can be miniaturized and the manufacturing cost can be reduced have.

Further, according to the present invention, since the electric shielding protection element and the conductive connection portion are arranged in the horizontal direction to connect the conductor and the circuit board in series, the thickness limitation between the conductor and the circuit board is satisfied, so that thinning can be achieved.

Further, according to the present invention, since the conductive connecting portion is horizontally symmetrically arranged with respect to the electric shock protection element, the pressing force externally applied can be uniformly dispersed, so that the stability of contact and the service life can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of an example in which an electric shock protection contactor including a conductive connection portion is applied to a portable electronic device, according to an embodiment of the present invention; Fig.
Figs. 2-4 are schematic equivalent circuit diagrams for describing operations on leakage current, electrostatic discharge (ESD), and communication signals when an electric shock protection contactor is installed in a portable electronic device according to an embodiment of the present invention; Fig.
FIG. 5 and FIG. 6 are graphs showing a simulation result of a pass frequency band based on capacitance in an electric shock protection contactor according to an embodiment of the present invention,
7 is a cross-sectional view of a state in which an electric shock protection contactor including a gasket-shaped conductive connection portion is applied to a portable electronic device, according to an embodiment of the present invention;
Fig. 8 is a cross-sectional view showing another form of the gasket-shaped conductive connection portion in the contactor for protection against electric shock shown in Fig. 7,
9 is a cross-sectional view of an example in which an electric shock protection contactor including a pair of conductive connection portions is applied to a portable electronic device, according to an embodiment of the present invention;
10 is a cross-sectional view of a state in which an electric shock protection contactor including a pair of gasket-shaped conductive connection portions is applied to a portable electronic device, according to an embodiment of the present invention;
Fig. 11 is a cross-sectional view showing another form of a pair of gasket-shaped conductive connecting parts in the contactor for protection against electric shock shown in Fig. 10,
12 is an overall perspective view showing a structure of an electric shock protection contactor including a gasket-type conductive connection portion and an electric shock protection element, according to an embodiment of the present invention;
13 is an exploded perspective view showing a relationship in which a plurality of sheet layers are stacked in an electric shock protection device according to an embodiment of the present invention,
Fig. 14 is a longitudinal sectional view showing another form of the electric shock protection element in the electric shock protection contactor of Fig. 7,
Figs. 15, 17, 18, and 19 are vertical cross-sectional views showing other forms of the electric shock protection portion included in the electric shock protection element of Fig. 7; and
Fig. 16 is an exploded perspective view of an electric shock protection unit showing one embodiment of internal electrodes and air gaps in the electric shock protection element of Fig. 15; Fig.

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 contactor 100 for protecting an electric shock according to an embodiment of the present invention includes a conductive connection part 110 and an electric shock protection element 130.

Such an electric shock protection contactor 100 is for electrically connecting between a conductor 12 such as an external metal case and a circuit board 14 in a portable electronic device, referring to FIG. At this time, the electric shock protection device 100 may be disposed in a region where the thickness between the conductor 12 and the circuit board 14 is limited, for example, a side key region. Particularly, in the electric shock protection device 100, the thickness between the conductor 12 and the circuit board 14 needs to be thin, while the restriction of the length can be relatively freely arranged.

Here, 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.

At least a portion of the electrical protection contactor 100 may be depressed in response to a pressing force to engage the conductor 12 with the portable electronic device and may be restored to its original state when the conductor 12 is detached from the portable electronic device. It is possible to have an elastic force.

Here, the conductor 12 may be provided to partially surround or partially surround the side portion of the portable electronic device, and may be an antenna for communication between the portable electronic device and the external device.

The upper part of the conductive connection part 110 is electrically connected to the conductor 12 and the lower part of the conductive connection part 110 is connected to the circuit board 14 through the insulating layer 102, And an extraction electrode 114. At this time, as shown in FIG. 1, the conductive connection part 110 and the electric shock protection element 130 are arranged in a horizontal direction.

Since the conductive connection part 110 is disposed in the horizontal direction and connected in series with the electric shock protection device 130 so that the conductive connection part 110 and the electric shock protection device 130 are not stacked, And the circuit board 14 can be thinned.

At this time, the conductive connection part 110 is in electrical contact with the conductor 12 of the portable electronic device and may have an elastic force. 7, the conductive connecting portion 110 may be provided as a gasket-type (or type) conductor (a gasket-shaped conductive connecting portion or a conductive gasket), which is a conductive material having an elastic force (restoring force or elastic restoring force) have.

At this time, at least a part of the conductive connection part 110 may be contracted (or pressed) toward the circuit board 14 by the pressing force of the conductor 12, and when the conductor 12 is separated from the portable electronic device, It can be restored to its original state by its elastic force.

The electric shock protection device 130 is electrically connected in series to the conductive connection part 110 and the circuit board 14. For example, referring to FIG. 1, the conductive connection part 110 and the electric shock protection device 130 May be disposed horizontally between the conductor 12 and the circuit board 14. [ At this time, the upper side of the conductive connection part 110 may be connected to the conductor 12, and the lower side of the electric shock protection element 130 may be connected to the circuit board 14. [ Here, a pair of external electrodes 132 and 134 may be disposed on the upper surface and the lower surface of the electric shock protection element 130, respectively. Here, the pair of external electrodes 132 and 134 may be represented by 132-1 and 134-1. As described above, in the following description, reference numerals having no '-' may include the meaning of '-1'.

The lower side of the conductive connection part 110 is connected to the circuit board 14 through the insulator 102 to prevent the direct connection. Also, a part of the side surface of the conductive connection part 110 may be contacted (or connected) to the electric shock protection element 130 through the lead electrode 114.

The lead electrode 114 may be connected to the external electrode 132 disposed on the upper surface of the electric shock protection device 130 and the external surface of the circuit protection substrate 130 may be connected to the external electrode 134, (Not shown).

The electric shock protection element 130 may be an element having a function to prevent damage to the user or damage to the internal circuit such as electric shock through a conductor, such as a metal case. For example, the electric shock protection device 130 may block a leakage current of an external power source that flows from the ground of the circuit board 14 of the electronic device, and may transmit a communication signal from the electric conductor 12 And the static electricity can be passed through the conductor 12 without being insulated and broken during the flow of the static electricity.

To this end, the electric shock protection element 130 may include at least one of an electric shock protection element, a varistor, a suppressor, and a diode, for example. Here, the electric shock protection device may include various types of surge suppressors or varistors. That is, the electric shock protection element may be a single element or a surge suppressor or a varistor. Alternatively, when the contactor for protecting the electric shock protection is required to have a function of passing a communication signal, such as when the contactor is connected to a conductor such as an antenna, the electric shock protection element 130 may be a surgeon having a capacitor layer May be a varistor with a capacitor layer.

Such an electric shock protection element 130 may have a breakdown voltage Vbr that satisfies the following equation so as to block the leakage current of the external electric power source:

Vbr> Vin

Where Vin is the rated voltage of the external power supply of the electronic device.

At this time, the rated voltage may be a standard rated voltage for each country, for example, 240V, 110V, 720V, 120V and 100V.

On the other hand, when the conductor 12 has an antenna function, the electric shock protection element 130 may be a suppressor having a capacitor layer or a varistor.

Such an electric shock protection element 130 includes an electric shock protection unit and at least one capacitor layer and is configured to block the leakage current of an external power source and to pass a communication signal coming from the electric conductor 12, And may have a breakdown voltage (Vbr) of the protective portion:

Vbr> Vin, Vcp> Vbr

Where Vin is the rated voltage of the external power supply of the electronic device,

Vcp is the dielectric breakdown voltage of the capacitor layer. Here, the total breakdown voltage of the capacitor layer may be equal to the breakdown voltage across the respective capacitors formed by the capacitor electrodes, because the capacitor layer is composed of a plurality of layers and each is electrically connected in parallel.

2 to 4, the electric shock protection device 130 may have different functions depending on a leakage current due to an external power source, a static electricity flowing from the electric conductor 12, and a communication signal.

2, when the leakage current of the external power source flows into the conductor 12 through the circuit portion 14 'of the circuit board 14, for example, the ground, 130 can be kept open since the breakdown voltage (or trigger voltage) Vbr is larger than the overvoltage due to the leakage current. That is, since the breakdown voltage Vbr of the electric shock protection element 130 is larger than the rated voltage of the external power source of the portable electronic apparatus, the electric conductor 12, which can be bonded to the human body such as the metal case, It is possible to prevent the leakage current from being transmitted.

In this case, when the capacitor layer is provided in the electric shock protection device 130, the capacitor layer can block the DC component included in the leakage current, and since the leakage current has a relatively lower frequency than the radio communication band, So that the leakage current can be cut off.

 As a result, the electric shock protection element 130 can protect the user from electric shock by blocking the leakage current to the external power source which flows from the ground of the circuit portion 14 '.

Referring to FIG. 3, when static electricity flows from the outside through the conductor 12, the electric shock protection element 130 functions as an electrostatic protection element such as a suppressor or a varistor. That is, when the electric shock protection element 130 is in the form of a varistor, since the breakdown voltage Vbr thereof is smaller than the instantaneous voltage of the static electricity, the electric shock can be electrically conducted to pass the static electricity. When the electric shock protection element 130 is in the form of a supercapacitor, since the operating voltage of the suppressor for electrostatic discharge is smaller than the instantaneous voltage of the static electricity, the static electricity can be passed by the instantaneous discharge. As a result, the electric shock resistance protective element 130 can lower the electrical resistance when the static electricity flows from the conductor 12, and can pass the static electricity without being broken down by itself.

At this time, when the capacitor layer is provided in the electric shock protection device 130, since the insulation breakdown voltage Vcp of the capacitor layer is larger than the breakdown voltage Vbr of the electric shock protection portion, the static electricity does not flow into the capacitor layer, It can only pass through the protective part.

Here, the circuit portion 14 'may have a separate protection element for bypassing the static electricity to the ground. As a result, the electric shock protection element 130 can pass the static electricity without being broken down by the static electricity flowing from the conductor 12, thereby protecting the inner circuit of the following stage.

4, when the electric shock protection element 130 has a capacitor layer and a communication signal flows through the electric conductor 12, the electric shock protection element 130 functions as a capacitor. That is, the electric shock protection element 130 keeps the electric shock protection part in the open state to shut off the conductor 12 and the circuit part 14 ', but can pass the communication signal in which the capacitor layer inside is passed. Thus, the capacitor layer of the electric shock protection element 130 can provide the inflow path of the communication signal.

Here, the capacitance of the capacitor layer is preferably set so as to pass the communication signal of the main wireless communication band without attenuation.

Referring to FIGS. 5 and 6, according to the result of simulating a pass frequency band according to a capacitance, it is possible to transmit substantially no loss at a mobile radio communication frequency band (700 MHz to 2.6 GHz) Shot phenomenon.

However, as shown in FIG. 6, it can be seen that the capacitance of the capacitor layer is not influenced by the reception sensitivity at the time of the communication at a capacitance of about 30 pF or more. It is preferable to use a high capacitance of 30. Or more.

As a result, the electric shock protection element 130 can pass the communication signal introduced from the conductor 12 by the high capacitance of the capacitor layer without attenuation.

Hereinafter, an embodiment of an electric shock protection contactor including a gasket-shaped conductive connection portion (hereinafter referred to as a conductive gasket) and an electric shock protection element according to an embodiment of the present invention will be described in detail with reference to FIGS. 7 and 8 .

According to the present embodiment, as shown in FIG. 7, the contact protection contactor 700 may include the conductive gasket 710 and the electric shock protection element 130 as the conductive connection portion 110.

7, a part of the contact surface of the conductive gasket 710 is pressed by the conductor 12 or the circuit board 14 so that a part of the conductive gasket 710 in the pressed area is pressed, That is, before it is pressed by the conductor 12 and / or the circuit board 140, by the elastic force of the conductive gasket 710, if it is separated from the portable electronic device.

For example, the conductive gasket 710 provided as the conductive connection part 110 may be integrally formed of a conductive material having an elastic force. For example, the conductive gasket 710 may comprise paper, synthetic resin, hemp, natural rubber, synthetic rubber, asbestos, leather, heat resistant silicone, copper, lead, mild steel and / or conductive metal. Also, the conductive gasket 710 may be manufactured by thermocompression bonding at least one of the materials and at least a part of the conductive paste. The conductive gasket 710 may be provided as at least one of a polymer body, a natural rubber, a sponge, a synthetic rubber, a gasket, a heat-resistant silicone rubber, and a tube manufactured by thermocompression bonding a conductive paste. However, the present invention is not limited thereto, and may be provided including a conductive material having elasticity.

The conductive gasket 710 may be formed in various shapes. For example, the conductive gasket 720 may be provided in the form of a rectangular parallelepiped as shown in FIGS. 7 and 8, but it is not limited thereto, and may be provided in various shapes such as a quadrangular pyramid shape or a hemispherical shape.

A part of the conductive gasket 710 provided in the above-described various forms may be brought into electric contact with the conductor 12 as shown in Fig. Such contact may be any of point contact, line contact, and surface contact. Here, a part of the conductive gasket 710, which is in contact with the conductor 12, the circuit board 14, or one surface of the electric shock protection element 130, may include a terminal for improving electrical connection.

Here, the conductive gasket 710 may have an upper portion thereof in electrical contact with a conductor 12 such as a metal housing or an antenna, and a lower portion thereof may be coupled to the circuit board 14 through the insulating layer 102.

At this time, the conductive gasket 710 may be a horizontal electrode extending outwardly through the body of the conductive gasket 710, in which the lead-out electrode 714 for connection with the electric shock protection element 130 is formed.

Here, when the contact protection contactor 700 is pressed by the conductor 12, the lead electrode 714 is pressed under the contraction of the conductive gasket 710. At this time, in order to uniformly disperse the pressure applied to the extraction electrode 714 to minimize deformation, the extraction electrode 714 is formed so as to be uniformly supported by the upper and lower portions in the conductive gasket 710 .

The pair of external electrodes 132 and 134 may be formed on the lower surface and the upper surface of the electric shock protection element 130, respectively. Although not shown, a conductive adhesive layer may be applied to the upper and lower outer electrodes 132 and 134 of the electric shock protection element 130, and the lead electrode 714 may be formed through the conductive adhesive layer, And the circuit board (14).

8, a pair of external electrodes 132 and 134 are formed on the upper and lower surfaces of the protection shield 130. However, the present invention is not limited to this, 132-2, and 134-2 may be provided on the sides of the electric shock protection device 130. [

8, the electric shock protection contactor 700-2 includes the electric shock protection element 130 having the pair of external electrodes 132-2 and 134-2 on both sides thereof, the conductive gasket 710- 2 may be arranged in the horizontal direction.

For example, the electric shock protection element 130 may be rotated by 90 degrees so that the pair of external electrodes 132-2 and 134-2 face the pair of conductive gaskets 710 and 730, . Alternatively, the electric shock protection element 130 may be provided with a pair of external electrodes on both sides thereof. Although not shown in the drawing, a conductive adhesive layer may be applied to the pair of external electrodes 132-2 and 134-2 of the electric shock protection device 130, and the conductive adhesive layer may be connected to the lead electrode 814 through the conductive adhesive layer have.

At this time, the conductive gasket 710-2 may be vertically formed in the body corresponding to the external electrode 132-2 of the electric shock protection element 130, Here, when the external electrode 132-2 of the electric shock protection element 130 is formed on the side surface, the connection part on the upper surface is reduced. Therefore, when the drawing electrode 814 is formed as a horizontal electrode, It can fall. Therefore, the lead-out electrode 814 may be formed as a vertical electrode to improve contact and coupling between the conductive gasket 710-2 and the electric shock-proof protection device 130. [

An insulating layer 102 is disposed on the lower surface of the external electrode 312-2 connected to the drawing electrode 814 and the other external electrode 714-2 is electrically connected to the conductive adhesive layer 106. [ To the circuit board (14).

The contactor protection contact 100 according to an embodiment of the present invention includes a first conductive connection part 110, a second conductive connection part 120, and an electric shock protection element 130, as shown in FIG.

Referring to FIG. 9, the first conductive connection part 110 and the second conductive connection part 120 form a pair, and are horizontally symmetrically arranged with respect to the electric shock protection device 130. For example, as shown in FIG. 1, the first conductive connection part 110 is disposed on the left side of the electric shock protection element 130, and the second conductive connection part 120 is disposed on the left side of the electric shock protection element 130, The pair of conductive connection portions 110 and 120 may be arranged symmetrically with respect to the electric shock protection element 130 in the horizontal direction.

Since the pair of the conductive connection portions 110 and 120 are arranged symmetrically with respect to the electric shock protection element 130 in this way, the pressing force externally applied through the conductor 12 or the circuit board 14 It is possible to improve the stability of the contact by the pair of the conductive connecting parts 110 and 120 and the service life thereof.

One of the pair of conductive connection parts 110 and 120 is provided with an insulating layer 102 between the conductive part and the conductor 12 and the other is provided with an insulating layer 102 may be provided. That is, the first conductive connecting part 110 is electrically connected to the conductor 12 on the upper side, the lower side is coupled to the circuit board 14 through the insulating layer 102, and the second conductive connecting part 120 May be coupled to the conductor 12 via the insulating layer 102 and the lower side may be electrically connected to the circuit board 14. [

The pair of conductive connection parts 110 and 120 and the electric shock protection device 130 may be connected in series to each other by horizontally symmetrically connecting the pair of conductive connection parts 110 and 120. [ 130 are not stacked, thinning between the conductor 12 and the circuit board 14 can be achieved.

The pair of conductive connection parts 110 and 120 may include lead electrodes 114 and 124 for connection with the electric shock protection device 130. [ The lead electrodes 114 and 124 may extend from opposite sides of the pair of the conductive connecting parts 110 and 120. The lead electrodes 114 and 124 are electrically connected to the pair of the conductive connection parts 110 and 120 so that the electric shock protection element 130 is spaced apart from the conductor 12 and the circuit board 14 by a predetermined distance. Respectively.

At this time, the first conductive connection part 110 and the second conductive connection part 120 are in electrical contact with any one of the conductor 12 and the circuit board 14 of the portable electronic device, respectively, and may have an elastic force. Such a pair of conductive connection portions 110 and 120 may be provided as a gasket-shaped conductor having an elastic force as shown in FIG.

The electric shock protection device 130 is electrically connected in series to the first conductive connection part 110 and the second conductive connection part 120. For example, as shown in FIG. 9, (110, 120). At this time, a pair of external electrodes 132 and 134 may be disposed on the upper surface and the lower surface of the electric shock protection element 130, respectively. The pair of conductive connection parts 110 and 120 may be connected to the external electrodes 132 and 134 through the extraction electrodes 114 and 124. Such a structure will be described later.

At this time, the electric shock protection device 130 may be a device having a function of preventing damage to the user or damage of the internal circuit such as electric shock through a conductor, such as a metal case. For example, the electric shock protection device 130 may block a leakage current of an external power source that flows from the ground of the circuit board 14 of the electronic device, and may transmit a communication signal from the electric conductor 12 And the static electricity can be passed through the conductor 12 without being insulated and broken during the flow of the static electricity.

To this end, the electric shock protection element 130 may include at least one of an electric shock protection element, a varistor, a suppressor, and a diode, for example. Here, the electric shock protection device may include various types of surge suppressors or varistors. That is, the electric shock protection element may be a single element or a surge suppressor or a varistor. Alternatively, when the contactor for protecting the electric shock protection is required to have a function of passing a communication signal, such as when the contactor is connected to a conductor such as an antenna, the electric shock protection element 130 may be a surgeon having a capacitor layer May be a varistor with a capacitor layer.

10 and 11, an example in which the conductive connection portion is implemented as a conductive gasket in the contactor for protection against electric shock according to an embodiment of the present invention will be described in more detail.

10, the contact protection contactor 700-3 may include a pair of conductive gaskets 710 and 730 and an electric shock protection element 130 as a conductive connection portion.

The pair of conductive gaskets 710 and 730 may be integrally formed of a conductive material having an elastic force. The pair of conductive gaskets 710 and 730 may include at least one of a polymer body, a natural rubber, a sponge, a synthetic rubber, a gasket, 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.

The upper portion of the first conductive gasket 710 may be in electrical contact with the conductor 12 such as a metal housing or an antenna and the lower portion thereof may be coupled to the circuit board 14 through the insulating layer 102 . Similarly, the top portion of the second conductive gasket 730 may be coupled to the conductor 12 via the insulating layer 102, and the bottom of the second conductive gasket 730 may be electrically connected to the circuit board 14.

At this time, the pair of conductive gaskets 710 and 730 are electrically connected to each other by lead electrodes 1014 and 1034 for connection with the electric shock protection element 130, through the bodies of the conductive gaskets 710 and 730, ≪ / RTI >

Here, when the contact protection contactor 700-3 is pressed by the conductor 12, the lead electrodes 1014 and 1034 are pressed under the contraction of the conductive gaskets 710 and 730. In order to uniformly disperse the pressure applied to the lead electrodes 1014 and 1034 to minimize deformation, the lead electrodes 1014 and 1034 are disposed in the upper and lower portions of the pair of conductive gaskets 710 and 730, respectively. And can be formed so as to be uniformly supported by the lower portion.

The lead electrodes 1014 and 1034 may extend from opposite sides of the pair of conductive gaskets 710 and 730. The lead electrodes 1014 and 1034 are electrically connected to the pair of conductive gaskets 710 and 730 so that the electric shock protection element 130 is spaced apart from the conductor 12 and the circuit board 14 by a predetermined distance. Respectively.

Since the electric shock protection device 130 is symmetrically supported by the pair of lead electrodes 1014 and 1034 so that the electric shock protection device 130 can be spaced apart from both the conductor 12 and the circuit board 14 by a certain distance , Breakage due to external impact can be prevented.

The pair of external electrodes 132 and 134 may be formed on the lower surface and the upper surface of the electric shock protection element 130, respectively. At this time, although not shown, a conductive adhesive layer may be applied to the upper and lower outer electrodes 132 and 134 of the electric shock protection element 130, and a pair of conductive gaskets (not shown) 710, and 730 may be stacked.

11, the contactor 700-4 for protecting the electric shock protection includes a case where the lead electrodes 1062 and 1064 are formed with the groove portions 1062 and 1136 in the pair of conductive gaskets 710 and 730, (130) is inserted into the grooves (1066, 1136).

Each of the pair of conductive gaskets 710 and 730 may have grooves 1066 and 1136 formed on the sides thereof facing each other and the lead electrodes 1064 and 1134 may be provided on the grooves 1066 and 1136 . At this time, the electric shock protection device 130 may be inserted into the grooves 1066 and 1136 and electrically connected to the extraction electrodes 1066 and 1136.

The grooves 1066 and 1136 may be formed in such a manner that the electric shock protection element 130 is spaced apart from the conductor 12 and the circuit board 14 by a predetermined distance, And may be formed at the central portion.

Since the electric shock protection device 130 is symmetrically supported by the pair of lead electrodes 1064 and 1134, the electric shock protection device 130 can be arranged to be spaced apart from both the conductor 12 and the circuit board 14 by a certain distance , Breakage due to external impact can be prevented.

Each of the pair of conductive gaskets 710 and 730 may be formed such that the lead electrodes 1064 and 1134 are vertically formed in the body corresponding to the external electrodes 132 'and 134' of the electric shock protection element 130 .

At this time, the electric shock protection device 130 may be disposed laterally by 90 degrees so that the pair of external electrodes 132-2 and 134-2 face the pair of conductive gaskets 710 and 730 . Alternatively, the electric shock protection element 130 may be provided with a pair of external electrodes on both sides thereof. Although not shown in the drawing, a conductive adhesive layer can be applied to the pair of external electrodes 132-2 and 134-2 of the electric shock protection element 130, and through the conductive adhesive layer, the lead electrodes 1064 and 1134, Can be connected.

Referring to FIG. 12, the contactor 100 for protecting an electric shock protection includes a contact protection contactor 700 having a conductive connection part 110 as a conductive gasket 710 as shown in FIG. 7, The connector 700 includes a conductive gasket 710, an electric shock protection element 130 and a lead electrode 714 for connection with the electric shock protection element 130 and extends through the body of the conductive gasket 710 to the outside And may include a horizontal electrode.

The conductive gasket 710 may be formed in a polygonal shape. For example, the conductive gasket 710 may be provided in the form of a rectangular parallelepiped as shown in FIG. 7, but it is not limited thereto, and may be provided in various shapes such as a quadrangular pyramid shape or a hemispherical shape.

Some of the conductive gaskets 710 and 230 provided in the various forms may be in contact with the conductor 12 or the circuit board 14 as shown in Fig. Such contact may be any of point contact, line contact, and surface contact. Here, a part of the conductive gasket 710, which is in contact with the conductor 12, the circuit board 14, or one surface of the electric shock protection element 130, may include a terminal for improving electrical connection.

The pair of external electrodes 132 and 134 may be formed on the lower surface and the upper surface of the electric shock protection element 130, respectively. 12, a conductive adhesive layer 106 may be applied to a pair of external electrodes 132 and 134 formed on the upper and lower surfaces of the electric shock protection element 130, and the conductive adhesive layer 106 may be electrically conductive The gasket 710 and the circuit board 14 may be electrically connected to each other.

12 and 13, the electric shock protection device 130 includes a body 720a, an electric shock protection portion 725 or 725-1, and a plurality of capacitor layers 724a and 724b. At least one unit element including two or more internal electrodes 725a 725b and an air gap 728 is arranged in series with each other and the capacitor layers 724a and 724b are electrically connected to a plurality of capacitor electrodes (S) 726a, 726b.

At this time, the body 120a may be formed with a plurality of sheet layers stacked. For example, the element body 720a may include a plurality of electrodes 725a, 725b, 726a, and 726b provided on at least a part of one surface so as to form the electric shock protection element 130 and the capacitor layers 724a and 724b. The sheet layers 720a-1 to 720b-12 are sequentially stacked, and a plurality of electrodes provided on one surface of the sheet layers 720a-1 to 720b-12 are arranged so as to face each other, and then integrally formed through a pressing, firing or curing process.

Such a body 720a may be made of an insulator having a dielectric constant. For example, the insulator may be made of a ceramic material, a low temperature sintered ceramics (LTCC), a high temperature sintered ceramics (HTCC), and a magnetic material. At this time, the ceramic material of the metal-based and oxidative compounds, metal-based oxide compounds Er 2 O 3, Dy 2 O 3, Ho 2 O 3, V 2 O 5, CoO, MoO 3, SnO 2, BaTiO 3, Nd 2 O 3 And may include at least one selected.

The external electrode 132 may be formed on the upper surface of the body 720a, and the external electrode 134 may be formed on the lower surface of the body 720a. At this time, the external electrode 132 may be electrically connected to the conductive gasket 710 disposed on the side surface of the electric shock protection device 130. For example, the lead electrode 714 constituting the conductive gasket 710 and the external electrode 132 of the electric shock protection element 130 may be connected. The conductive gasket 710 may be electrically connected to the conductor 12.

In addition, the external electrode 134 may be electrically connected to the circuit board 14 disposed under the electric shock protection device 130.

Each of the plurality of sheet layers 720a-1 to 720a-11 constituting the body 720a of the electric shock protection element 130 is electrically connected to the internal electrodes 725a and 725b constituting the electric shock protection portion 725, Any one of the capacitor electrodes 726a and 726b constituting the layers 724a and 724b may be formed. For example, the upper sheet layers 720a-1 and 720a-4 to 720a-7 are formed such that the internal electrodes 725a and the capacitor electrodes 726a and 726b are formed on the lower surface of the corresponding sheet layer, The internal electrodes 725b and the capacitor electrodes 726a and 726b may be formed on the upper surface of the corresponding sheet layer.

Here, the plurality of sheet layers 720a-1 to 720a-11 may be formed with through holes 723a 'and 723b' for forming the intermediate electrodes 723a and 723b. That is, the sheet layers 720a-1 to 720a-10 are formed with through holes 723a 'and 723b' at positions corresponding to both of the internal electrodes 725a and 725b The through hole 723a 'is formed at a position corresponding to the internal electrode 725a (left side in the drawing), and the sheet layer 720a-11 is positioned at a position corresponding to the internal electrode 725b (The right side in the drawing), the through hole 723b 'may be formed.

The outer electrode 134 is formed on the top surface of the sheet layer 720a-4 disposed on the uppermost side of the element body 720a and the outer electrode 132 is formed on the lowermost sheet 720a-11. As shown in FIG.

The shielding protection element 720 may be formed on the shielding protection portion 725 and the capacitor layers 724a and 724b such that the shielding portion 725 and the capacitor layers 724a and 724b are electrically connected in parallel. And a pair of intermediate electrodes 723a and 723b electrically connected at both ends. The pair of intermediate electrodes 723a and 723b may be formed through the internal electrodes 725a and 725b and the capacitor electrodes 726a and 726b. The intermediate electrode 723 a may be connected to the external electrode 132 and the intermediate electrode 723 b may be connected to the external electrode 134.

The inner electrodes 725a and 725b are spaced apart from each other within the prism body 720a by a predetermined distance. It accomplishes.

Here, one internal electrode 725a is connected to the intermediate electrode 723a, and the other internal electrode 725b is connected to the intermediate electrode 723b. The inner electrode 725a and the inner electrode 725b are connected to each other through at least one gap 728. The inner electrode 725a and the inner electrode 725b are opposed to the inner electrode 725a, They are connected in series.

The internal electrode 725a is formed on the sheet layer 720a-1 and the internal electrode 725b is formed on the sheet layer 720a-3 and at least one common electrode can be included in the sheet layer 720a-2 have. The gap 728 is arranged in series with the internal electrode 725a and the internal electrode 725b so that the internal electrode 725a and the internal electrode 725b are connected in series through one common electrode ≪ / RTI >

In this case, the inner electrode facing the inner electrode 725a and the inner electrode facing the inner electrode 725b may be formed of one common electrode (not shown). That is, a plurality of unit elements are arranged in series, so that they can be connected to the intermediate electrodes 723a and 723b through common electrodes (not shown) connected to neighboring spaces 728. [

The internal electrodes 725a and 725b may include a pair of internal electrodes 725a and 725b connected to the pair of intermediate electrodes 723a and 723b and a plurality of common electrodes 725a and 725b connected to the adjacent spaces 728, (Not shown). Here, the common electrode included in the electric shock protection element 200 may be included in the concept of the internal electrode.

Here, when a plurality of voids 728 are disposed between the inner electrode 725a and the inner electrode 725b, the inner electrode 725a and the inner electrode 725b may be connected in parallel through the gap 728. [

In the present embodiment, one unit element formed by internal electrodes is shown and described as one unit. However, the present invention is not limited to this, and two or more unit elements may be formed.

By arranging a plurality of unit elements in series, it is possible to disperse the functions of the unit elements with respect to the static electricity or leakage current flowing from the outside, and therefore the resistance to the introduced energy can be enhanced to improve the electrical characteristics .

The internal electrodes 725a and 725b, the common electrode and the intermediate electrodes 723a and 723b may include any one or more of Ag, Au, Pt, Pd, Ni and Cu. The external electrode 134 may include any one or more of Ag, Ni, and Sn components.

The pair of inner electrodes 725a and 725b and / or the common electrode may be formed in various shapes and patterns. The inner electrode 725a and the common electrode or the inner electrode 725b, And the common electrode may be provided in the same pattern or may have different patterns. That is, when the internal electrodes 725a and 725b and the common electrode are arranged such that a part of the electrodes (for example, the internal electrodes 725a and 725b and / or the common electrode) overlap each other in the configuration of the element 720a, It is not limited to the pattern.

Here, the intervals between the internal electrodes 725a and 725b, the common electrodes, and the areas facing each other or overlapping each other may be configured to satisfy the breakdown voltage Vbr of the electric shock protection device 720, The distance between the electrodes 725a and 725c or between the internal electrodes 725b and 725c may be 10 to 100 占 퐉.

The air gap 728 may be formed by, for example, a gap forming member 727. [ For example, referring to FIG. 11, the gap forming member 727 may be inserted between the pair of internal electrodes 725a and 725b in the body 720a. That is, the gap forming member 727 is provided in the sheet layer 720a-2 in the electric shock protection portion 725, and the gap 720a-2 of the sheet layer 720a-2 is formed so as to abut the internal electrodes 725a and 725b. And can be exposed upward and downward.

13, the gap forming member 727 may include a plurality of discharge material layers 727a-1, 727a-2, and 727a-3, which are formed on the inner wall of the gap forming member 727, . Here, the discharge material constituting the discharge material layers 727a-1, 727a-2, and 727a-3 has a low dielectric constant, no conductivity, and no short circuit when an overvoltage is applied.

To this end, the discharge material may be made of a nonconductive 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 internal electrodes 725a and 725b and / or the common electrode include an Ag component, the discharge material may include a SiC-ZnO based component. The SiC (Silicon Carbide) component has excellent thermal stability, excellent stability in an oxidizing atmosphere, constant conductivity and heat conductivity, and low dielectric constant. The ZnO component has excellent nonlinear resistance and discharge characteristics.

In addition, both SiC and ZnO have conductivity when used separately, but when they are mixed and fired, ZnO is bonded to the surface of SiC particles to form an insulating layer having a low conductivity.

In such an insulating layer, SiC completely reacts to form a SiC-ZnO reaction layer on the surface of the SiC particles. Accordingly, the insulating layer blocks the Ag path to provide a further higher insulating property to the discharge material and improves the resistance to static electricity, thereby solving the DC shorting phenomenon when the contact protection contactor 100 is mounted on the electronic part .

Here, the discharge material includes SiC-ZnO-based materials, but the present invention is not limited thereto. The discharge material may be a semiconductor material suitable for the components constituting the internal electrodes 725a and 725b and / Non-conductive materials can be used including materials or metal particles

The discharge material layer applied to the inner wall of the gap forming member 727 may include a first portion 727a-1 applied along the inner wall of the gap forming member 727 and a second portion 727b- A second portion 727a-2 extending from the top to extend in contact with the inner electrode 725a and a third portion 727b extending from the lower end of the first portion 727a-1 in contact with the inner electrode 725b, Portion 727a-3.

Accordingly, the discharge material layers 727a-1, 727a-2, and 727a-3 are formed not only from the inner wall of the gap forming member 727, but also from the upper and lower ends of the gap forming member 727, 727a-2 and the third portion 727a-3 are extended so that the contact area with the internal electrode 725a and the internal electrode 725b can be widened.

This is because a part of the components constituting the discharge material layers 727a-1, 727a-2 and 727a-3 is vaporized by the electrostatic spark due to the overvoltage to form the discharge material layers 727a-1, 727a-2 and 727a- 1, 727a-2, and 727a-3 can perform their functions by enhancing resistance to static electricity even if a part of the discharge material layers 727a-1, 727a-2, and 727a-3 are damaged.

An air gap 728 may be formed between the pair of internal electrodes 725a and 725b by the gap forming member 727. [ The static electricity introduced from the outside by the gap 728 can be discharged between the pair of internal electrodes 725a and 725b. At this time, the electrical resistance between the pair of inner electrodes 725a and 725b is lowered, and the voltage difference between both ends of the protection contactor 200 can be reduced to a certain value or less. Therefore, the contactor 200 for an electric shock protection can pass static electricity without causing internal breakdown.

On the other hand, a plurality of void forming members 727 may be provided between the pair of inner electrodes 725a and 725b. As described above, when the number of the gap forming members 727 disposed between the pair of inner electrodes is increased, the discharge path of static electricity is increased, and resistance to static electricity can be increased.

The capacitor layers 724a and 724b may be at least one stacked capacitor layer for passing communication signals from the conductors 12. The capacitor layers 724a and 724b may be electrically connected in parallel with the electric shock protection unit 725 through the intermediate electrodes 723a and 723b and may be connected to the upper and lower portions of the electric shock protection unit 725, Or at both the top and bottom, and may include a plurality of capacitor electrodes 726a and 726b. Here, the capacitor electrode 726a may be connected to the intermediate electrode 723a, and the capacitor electrode 726b may be electrically connected to the intermediate electrode 723b.

These capacitor layers 724a and 724b are intended to provide additional capacitance of the electric shock protection element 130 to improve RF reception sensitivity.

Unlike the prior art in which a separate component for increasing the RF reception sensitivity is used together with a suppressor, a varistor or a zener diode for protecting the internal circuit against static electricity by the capacitor layers 724a and 724b, An electric shock protection device has an advantage of protecting not only static electricity but also RF receiving sensitivity.

The gap between the electric shock protection portion 725 and the capacitor layers 724a and 724b may be a distance between the internal electrodes 725a and 725b and / or a common electrode or a gap between the capacitor electrodes 726a and 726b . That is, the capacitive layers 724a and 724b prevent the static electricity or the leakage current flowing along the internal electrodes 725a and 725b and / or the common electrode from leaking to the adjacent capacitor electrodes 726a and 726b, It is desirable to secure a sufficient distance between the capacitor electrodes 726a and 726b closest to the internal electrodes 725a and 725 and the internal electrodes 725a and 725b and / or the common electrode.

Here, the sheet layer on which the electric shock protection portion 725 and the upper and lower capacitor layers 724a and 724b are formed may be made of the same material, but may be made of different materials.

Further, at least one of the plurality of sheet layers 720a-4 to 720a-11 constituting the capacitor layers 724a and 724b uses the first ceramic material, and the remaining sheet layer uses the second ceramic material Can be used.

At this time, the first ceramic material and the second ceramic material may be heterogeneous ceramic materials. Here, the meaning of 'heterogeneous' means that the physical properties are mutually consulted even if the chemical formulas are different from each other or the chemical formulas are the same.

In the description of the electric shock protection device 720, as shown in FIG. 12, the electric shock protection device 720 connected to one conductive gasket 710 is described. However, the present invention is not limited thereto And may be applied to the electric shock protection elements 720 and 720-2 connected to the pair of conductive connection parts as shown in Figs. 9 to 11.

14, 16, 17, 18 and 19 show various embodiments of the electric shock protection portion included in the electric shock protection element.

The electric shock protection element 720 or 720-1 may have various shapes in forming the gap forming member 727. [ 14, the discharge material layers 727a-1, 727a-2, and 727a-3 surrounding the gap 728 in the electric shock protection element 720-3 may be formed of various materials such as a cylinder, Can be formed.

Referring to FIGS. 15 and 16, a gap 728 may be formed between the internal electrodes 725a and 725b without using a separate gap forming member for the electric shock protection element 720-4.

At this time, the gap 728 may be disposed between the pair of inner electrodes 725a and 725b as shown in FIG. For this purpose, a through-hole may be provided at a position corresponding to the gap 728 of the sheet layer 720a-2 on which the gap is formed.

Referring to FIG. 17, a filling layer (or filler) 727 'may be disposed in the through hole formed in the sheet layer 720a-2 in the electric shock protection device 720-5. That is, a filling layer 727 'made of a discharge material filled in the space between the pair of internal electrodes 725a and 725b may be formed.

Referring to FIG. 18, the electric shock protection unit 725-6 of the electric shock protection element 720-6 may include internal electrodes 725a 'and 725b' horizontally spaced apart from each other by a predetermined distance. That is, the electric shock protection element 720-6 may have a horizontal electrode formed on the same sheet layer.

At this time, a gap 728 'may be formed between the pair of internal electrodes 725a' and 725b '. Here, the air gap 728 'may be formed to have a height greater than the height of the internal electrodes 725a' and 725b ', and may be formed to be wider than an interval between the internal electrodes 725a' and 725b '. Thus, when the volume of the gap 728 'is enlarged, even if fine particles are generated from the internal electrodes 725a' and 725b 'during the discharge by the static electricity, the space between the internal electrodes 725a' and 725b ' It is possible to reduce the incidence of defects that can be caused by the defects.

Here, the gap 728 'is a space in which discharge is started by the pair of internal electrodes 725a' and 725b 'when static electricity is introduced, and the volume of the gap 728' is set to satisfy resistance to static electricity . For example, the volume of the gap 728 'may be 1-15% of the total volume of the electric shock protection element 720-6.

Also, in the electric shock protection device 720-6, the internal electrodes 725a 'and 725b' are disposed on the same sheet layer, and a gap 728 'formed between the internal electrodes is formed in the form of a through hole Lt; / RTI >

That is, the through holes are disposed between a pair of internal electrodes 725a 'and 725b' arranged in parallel on the same sheet layer, and may be provided in a hollow shape so that air can be filled.

In addition, the electric shock protection device 720-6 may include a discharge material layer (not shown) on the sidewall of the gap. This layer of the discharge material may be applied to the inner wall of the through hole 728 'formed in the sheet layer 720a-2 to a certain thickness along the height direction.

In addition, a filler layer 727 'may be disposed in the through hole formed in the sheet layer 720a-2 in the electric shock protection element 720-6. That is, a filling layer 727 'made of a discharge material filled inside can be formed between the pair of internal electrodes 725a' and 725b '.

19, the electric shock protection portion 725-4 of the electric shock protection element 720-7 may include the varistor material layers 720b and 720c and the internal electrodes 725a and 725b have.

Here, the varistor material layer may be composed of at least two layers alternately including a first varistor material layer 720b and a second varistor material layer 720c. Here, the first varistor material layer 720b and the second varistor material layer 720c may be any one of a semiconductive material containing at least one of ZnO, SrTiO3, BaTiO3, and SiC, or a Pr and Bi-based material have.

The internal electrodes 725a and 725b of the electric shock protection unit 725-7 are electrically connected to the first varistor material layer 720b by a plurality of first internal electrodes 725a spaced apart from each other by a predetermined distance L, And a plurality of second internal electrodes 725b spaced apart by a predetermined distance L on the layer 720c.

Here, the breakdown voltage Vbr of the electric shock protection unit 725-4 may be the sum of the breakdown voltages formed between the first adjacent first internal electrode 725a and the second internal electrode 725b.

Each of the first internal electrode 725a and the second internal electrode 725b may be disposed so that at least a part of the first internal electrode 725a and the second internal electrode 725b do not overlap each other. That is, each of the first internal electrode 725a and the second internal electrode 725b may be disposed in an intersecting manner so that at least a part of the first internal electrode 725a overlaps with the second internal electrode 725b.

The first internal electrode or the second internal electrode does not leak static electricity or leakage current to the adjacent capacitor electrodes 726a and 726b of the internal electrodes 725a and 725b but is normally leaked between the internal electrodes 725a and 725b It is preferable that the interval is set so that it can proceed.

That is, each of the first internal electrode 725a and the second internal electrode 725b is formed such that the distance between the adjacent capacitor electrodes 726a and 726b is larger than the spacing distance L between the internal electrodes 725a and 725b .

The spacing L1 between the first internal electrode 725a and the neighboring first internal electrode 725c is shorter than the distance between the first internal electrode 725a and the second internal electrode 725b Can be determined based on the distance d1 and the shortest distance d2 between the first internal electrode 725c adjacent to the first internal electrode 725a and the second internal electrode 725b.

For example, the spacing L1 between one first internal electrode 725a and another neighboring first internal electrode 725c is greater than the distance between the first internal electrode 725a and the second internal electrode 725b Or the shortest distance d2 between the first internal electrode 725c adjacent to the first internal electrode 725a and the second internal electrode 725b .

The spacing L1 between the first internal electrode 725a and the neighboring first internal electrode 725c is shorter than the distance between the first internal electrode 725a and the second internal electrode 725b The distance d1 and the shortest distance d2 between the first internal electrode 725c adjacent to the first internal electrode 725a and the second internal electrode 725b.

7, 8, 10, and 11, the electric shock protection element 720 is formed on the gap 728 formed by the internal electrodes 725a and 725b and the gap forming member 727 shown in Figs. 12 and 13 The present invention is not limited to this, and it is possible to use any one of the electric shock protection unit 725-2 to the electric shock protection unit 725-7 described with reference to Figs. 14 to 19 It is apparent that an electric shock protection device including one can be applied. In addition, the contactor 100 for protecting an electric shock protection according to FIGS. 1 to 19 includes a gasket-shaped conductive connector electrically connected to at least one of the upper surface and the lower surface of the electric shock protection element 130. However, Various modifications may be made without limitation.

The contactor for protection against electric shock as described above can be disposed between the body-contactable conductor 12 and the circuit board 14 in a portable electronic device.

By arranging the contactor for electric shock protection, the portable electronic device including the electric shockproof contactor can prevent damage to the user or breakage of the internal circuit through the conductor, and at the same time, by disposing the functional element and the conductive connector in the male direction , Not only the attainment of thinning but also the dispersion of the impact due to the pressing force can improve the stability of the contact and the service life.

12: conductor 14: circuit board
100, 700, 800, 1000, 1100, 1200: Contactor for protection against electric shock
110, 120: conductive connection portion 106: conductive adhesive layer
130: electric shock protection element 132, 134: external electrode
710, 730: Gasket shaped conductor
720a: Core bodies 723a and 723b: Intermediate electrode
725: electric shock protection part 725a, 725b: internal electrode
724a, 724b: capacitor layers 726a, 726b: capacitor electrodes
727: Cavity forming member 728: Cavity

Claims (29)

An electric shock protection device for interrupting a leakage current of an external power source flowing from a ground of a circuit board of an electronic device; And
And a resilient gasket-shaped conductive connection portion which is disposed on at least one side in the horizontal direction with respect to the electric shock protection element and is electrically connected in series with the electric shock protection element and at least part of which is in electrical contact with the electric conductor of the electronic device; Includes an electrical shock protection contactor. The method according to claim 1,
Wherein the gasket-shaped conductive connection portions are formed as a pair and are symmetrically arranged in the horizontal direction with respect to the electric shock protection element, and are electrically connected in series to the electric shock protection element through the respective extension electrodes. The method according to claim 1,
Wherein the electric shock protection device passes a communication signal flowing from the electric conductor. The method according to claim 1,
Wherein the electric shock protection device passes static electricity without causing insulation breakdown during the introduction of static electricity from the electric conductor. The method according to claim 1,
Wherein the electric shock protection housing has a pair of external electrodes on an upper surface and a lower surface. The method according to claim 1,
Wherein the electric shock protection housing has a pair of external electrodes on both sides thereof. The method according to claim 1,
Wherein the electric shock protection element has a breakdown voltage (Vbr) satisfying the following equation.
Vbr> Vin
Where Vin is the rated voltage of the external power supply of the electronic device The method of claim 3,
Wherein the electric shock protection device includes an electric shock protection portion and at least one capacitor layer,
Wherein the electric shock protection portion has a breakdown voltage (Vbr) satisfying the following expression.
Vbr> Vin, Vcp> Vbr
Where Vin is the rated voltage of the external power supply of the electronic device,
Vcp is the total breakdown voltage of the capacitor layer The method according to claim 1,
The gasket type conductive connection portion includes:
Wherein the contactor is made by thermocompression comprising at least one of paper, synthetic resin, hemp, natural rubber, synthetic rubber, asbestos, leather, copper, lead, mild steel and conductive paste. The method according to claim 1,
Wherein the lead electrode comprises a horizontal electrode extending to the outside through a body of the gasket-shaped conductive connection portion. 3. The method of claim 2,
Wherein one of the gasket-shaped conductive connection portions is provided with an insulating layer between itself and the conductor, and the other is provided with an insulating layer between itself and the circuit board. 3. The method of claim 2,
Wherein the electric shock protection housing is disposed to be spaced apart from the conductor and the circuit board by a predetermined distance. 3. The method of claim 2,
Wherein each of the gasket-shaped conductive connection portions is provided with a groove portion on a side surface facing each other, wherein the groove portion is provided with a lead electrode, and the functional device is inserted into the groove portion and connected to the lead electrode. 8. The method of claim 7,
The electric shock protection housing,
A body formed by stacking a plurality of sheet layers;
At least a pair of internal electrodes formed at predetermined intervals in the inside of the body; And
And a gap formed between the internal electrodes. 15. The method of claim 14,
And the pair of inner electrodes are disposed on the same plane. 15. The method of claim 14,
Wherein the gap comprises a layer of a discharge material applied to the inner wall at a predetermined thickness along the height direction. 8. The method of claim 7,
The electric shock protection housing,
At least two varistor material layers alternately laminated with a first varistor material layer and a second varistor material layer;
A plurality of first internal electrodes spaced apart by a predetermined distance L on the first varistor material layer; And
And a plurality of second internal electrodes spaced apart from each other by a predetermined distance L on the second varistor material layer. 18. The method of claim 17,
Wherein the breakdown voltage (Vbr) is a sum of a breakdown voltage formed between the first internal electrode and the second internal electrode closest to each other. 18. The method of claim 17,
Wherein the plurality of first inner electrodes and the plurality of second inner electrodes are disposed so that at least a part thereof does not overlap or overlap each other. 19. The method of claim 18,
The distance L between the plurality of first inner electrodes or the plurality of second inner electrodes may be set to be the shortest distance d1 between the first inner electrode and the second inner electrode, Is greater than a shortest distance (d2) between the other first inner electrode and the second inner electrode. 9. The method of claim 8,
And the capacitor layer is electrically connected in parallel with the electric shock protection portion. 9. The method of claim 8,
Wherein an interval between the capacitor layer and the electric shock protection portion is larger than an interval between a pair of internal electrodes of the electric shock protection portion. 9. The method of claim 8,
The electric shock protection housing,
A body formed by stacking a plurality of sheet layers;
An electric shock protection unit including at least a pair of internal electrodes formed at predetermined intervals in the inside of the body, and a gap formed between the internal electrodes; And
And at least one laminated capacitor layer through which the communication signal is passed. 24. The method of claim 23,
And the pair of inner electrodes are disposed on the same plane. 24. The method of claim 23,
Wherein the gap comprises a layer of a discharge material applied to the inner wall at a predetermined thickness along the height direction. Human contactable conductors;
A circuit board; And
And an electric shock protection contactor according to any one of claims 1 to 25, disposed between the electric conductor and the circuit board and electrically connected in series. 27. The method of claim 26,
Wherein the conductor comprises at least one of an antenna, a metal case, and a conductive ornament for communication between the electronic device and an external device. 27. The method of claim 26,
And the shielding contactor is disposed in a region where the thickness between the conductor and the circuit board is limited. 27. The method of claim 26,
Wherein the area where the thickness is limited includes a side key.
KR1020150165621A 2015-11-25 2015-11-25 Circuit protection contactor and mobile electronic device with the same KR20170060886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150165621A KR20170060886A (en) 2015-11-25 2015-11-25 Circuit protection contactor and mobile electronic device with the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150165621A KR20170060886A (en) 2015-11-25 2015-11-25 Circuit protection contactor and mobile electronic device with the same

Publications (1)

Publication Number Publication Date
KR20170060886A true KR20170060886A (en) 2017-06-02

Family

ID=59222337

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150165621A KR20170060886A (en) 2015-11-25 2015-11-25 Circuit protection contactor and mobile electronic device with the same

Country Status (1)

Country Link
KR (1) KR20170060886A (en)

Similar Documents

Publication Publication Date Title
KR101585604B1 (en) Circuit protection contactor and mobile electronic device with the same
KR102108900B1 (en) Circuit protection device
KR101608226B1 (en) Circuit protection device and mobile electronic device with the same
CN105375458A (en) Electric shock protective device and portable electronic device comprising same
KR101578544B1 (en) Circuit protection device and mobile electronic device with the same
KR101638053B1 (en) Contactor and mobile electronic device with the same
KR20170060846A (en) Circuit protection contactor and mobile electronic device with the same
KR101608224B1 (en) Circuit protection device and mobile electronic device with the same
KR20170069036A (en) Circuit protection contactor and mobile electronic device with the same
US10231366B2 (en) Electric shock prevention apparatus
KR20170060886A (en) Circuit protection contactor and mobile electronic device with the same
KR101727079B1 (en) Circuit protection device and mobile electronic device with the same
KR20170060888A (en) Circuit protection contactor and mobile electronic device with the same
KR20170060890A (en) Circuit protection contactor and mobile electronic device with the same
KR20170060848A (en) Circuit protection contactor and mobile electronic device with the same
KR20170060878A (en) Circuit protection contactor and mobile electronic device with the same
KR101926599B1 (en) Electric shock protection device
KR101916156B1 (en) Electric shock protection device
KR20170060881A (en) Circuit protection contactor and mobile electronic device with the same
KR20170053052A (en) Electric shock protection contactor and mobile electronic device with the same
KR20170048985A (en) Circuit protection contactor and mobile electronic device with the same
KR101939658B1 (en) Electric shock protection contactor assembly and mobile electronic apparatus with the same
KR101969023B1 (en) Electric shock protection contactor assembly and mobile electronic apparatus with the same
KR20170048986A (en) Circuit protection contactor and mobile electronic device with the same
KR20170053049A (en) Electric shock protection contactor and mobile electronic device with the same