WO2016122245A1 - Dispositif électronique portable comportant une fonction de protection intégrée contre les chocs électriques - Google Patents

Dispositif électronique portable comportant une fonction de protection intégrée contre les chocs électriques Download PDF

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Publication number
WO2016122245A1
WO2016122245A1 PCT/KR2016/000989 KR2016000989W WO2016122245A1 WO 2016122245 A1 WO2016122245 A1 WO 2016122245A1 KR 2016000989 W KR2016000989 W KR 2016000989W WO 2016122245 A1 WO2016122245 A1 WO 2016122245A1
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WO
WIPO (PCT)
Prior art keywords
electric shock
shock protection
conductive
electronic device
portable electronic
Prior art date
Application number
PCT/KR2016/000989
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English (en)
Korean (ko)
Inventor
류재수
임병국
박규환
유준서
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.)
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Publication date
Application filed by 주식회사 아모텍 filed Critical 주식회사 아모텍
Priority to CN201680007718.0A priority Critical patent/CN107211528B/zh
Priority to US15/547,358 priority patent/US10631448B2/en
Priority claimed from KR1020160011084A external-priority patent/KR101917787B1/ko
Publication of WO2016122245A1 publication Critical patent/WO2016122245A1/fr

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation

Definitions

  • the present invention relates to a portable electronic device, and more particularly, in a portable electronic device in which a conductor is exposed to the outside, an electric shock protection device connected to the conductor can protect the internal circuit and / or the user from leakage current and static electricity.
  • the present invention relates to a portable electronic device having a built-in electric shock protection function.
  • Such portable electronic devices typically use an adapter to charge the battery.
  • a protection device for protecting a user from leakage current is not built in.
  • non-genuine chargers may not be sufficiently blocked by the Y-CAP if the Y-CAP configured with capacitors across the transformer does not have regular characteristics to enhance the electrical insulation of the transformer.
  • the leakage current may be generated, and the leakage current may propagate along the ground of the circuit. Therefore, a protective element for protecting a user from such leakage current needs to be built in a portable electronic device such as a mobile phone.
  • the metal case exposed to the outside performs a variety of roles, such as simple reinforcement, ground and antenna, depending on the location.
  • the metal case when used as ground, the lower the capacitance, the better.
  • the metal case when used as the antenna, when the capacitance is low, the operation is performed in the open mode and the RF signal is not smoothly transmitted, so high capacitance needs to be implemented. There is.
  • the protection element should also be disposed between the metal case and the receiver impedance matching line inside the housing to perform an appropriate role according to the role of the metal case.
  • the protection device since the protection device operates close to the short mode, it can smoothly protect against leakage current and static electricity, and the protection device itself has a high capacitance, so that the development of the protection device can also improve the RF reception. This situation is urgently needed.
  • the camera module is not only exposed to the outside, so the user's electric shock or damage to the internal circuit due to the above-mentioned electric current or static electricity is more likely.
  • the present invention has been made in view of the above, and an object thereof is to provide a portable electronic device with a built-in electric shock protection function that can protect an internal circuit and / or a user from static electricity or leakage current.
  • the present invention to solve the above problem is a circuit board; A camera module mounted to the circuit board; A conductive cover disposed to cover a portion of an upper side of the camera module; A conductive connection part electrically contacting the conductive cover and mounted on the circuit board; And an electric shock protection device mounted on the circuit board so as to be connected in series to the conductive connection part, passing static electricity flowing from the conductive cover, and blocking leakage current of external power flowing into the ground part of the circuit board.
  • the conductive cover has a support extending horizontally on the lower side, the conductive connection portion may be disposed on one side of the support.
  • the portable electronic device may further include a support member between the other side of the support and the circuit board.
  • the support member may be any one of an insulator and the conductive connection part.
  • the conductive cover may have a through hole corresponding to the lens of the camera module at the center.
  • the conductive cover and the conductive connecting portion may be spaced apart from the camera module at a predetermined interval.
  • circuit board may be provided with pads and wires such that the conductive connection part and the electric shock protection device are electrically connected in series.
  • the conductive connection portion may be disposed on the side of the conductive cover.
  • the electric shock protection device may satisfy the following equation:
  • Vbr is the breakdown voltage of the electric shock protection device
  • Vin is the rated voltage of the external power supply.
  • the conductive connection portion may be any one of a conductive gasket, a silicone rubber pad and a pad and a clip-shaped conductor.
  • the conductive gasket 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 in which the conductive paste is manufactured by thermocompression bonding.
  • the silicone rubber pad the body made of silicone rubber; And a conductive wire vertically formed in the body.
  • the silicone rubber pad the body made of silicone rubber; A plurality of conductive layers horizontally stacked and stacked inside the body; And a plurality of contact parts formed in a curved protrusion shape on the upper side of the body.
  • the silicone rubber pad the body made of non-conductive silicone rubber; A conductive part filled with conductive silicone rubber and conductive particles in a plurality of through holes vertically penetrating the inside of the body; And it may include a plurality of contact portion formed in a curved projection shape on both sides of the conductive portion.
  • the clip-shaped conductor may include a contact portion having a curved portion shape and contacting the conductive cover; A bending portion extending from the contact portion and having an elastic force; And a terminal unit electrically connected to the electric shock protection device.
  • the electric shock protection device includes a body in which a plurality of sheet layers are stacked; And at least one pair of internal electrodes formed spaced apart from each other within the body by a predetermined interval.
  • the electric shock protection device may further include a gap formed between the pair of internal electrodes.
  • the air gap may be provided with a discharge material layer applied to a predetermined thickness in the height direction on the inner wall.
  • the pair of internal electrodes may be disposed on the same plane or faced in a vertical direction.
  • the electric shock protection device may further include at least two varistor material layers in which a first varistor material layer and a second varistor material layer are alternately stacked; A plurality of first internal electrodes spaced apart at predetermined intervals L1 on the first varistor material layer; And a plurality of second internal electrodes spaced apart at predetermined intervals L1 on the second varistor material layer.
  • the breakdown voltage Vbr may be a sum of unit breakdown voltages formed between the first inner electrode and the second inner electrode which are closest to each other.
  • each of the first internal electrode and the second internal electrode may be disposed such that at least some of them overlap or do not overlap each other.
  • interval L1 between the first internal electrodes or the separation interval L1 between the second internal electrodes may be greater than the shortest distance d1 between the first internal electrode and the second internal electrode.
  • the present invention is a circuit board; A camera module mounted to the circuit board; A conductive cover disposed to cover a portion of an upper side of the camera module; And an electric shock protection contactor having one end electrically connected to the conductive cover and the other end electrically connected in series with the circuit board.
  • the electric shock protection contactor may include: a conductive connection portion electrically contacting the conductive cover and having an elastic force; And an electric shock protection device connected in series with the conductive connection part and passing static electricity flowing from the conductive cover and blocking leakage current of external power flowing into the ground part of the circuit board.
  • the electric shock protection device has a connection electrode on the upper surface, an external electrode on the lower surface, the conductive connection portion may be laminated on the connection electrode on the upper surface of the electric shock protection device through a conductive adhesive layer.
  • the electric shock protection device the receiving portion formed on the upper side; A connection electrode formed on the bottom surface of the receiving portion; And a conductive adhesive layer formed on an upper surface of the connection electrode, wherein the conductive connection portion may be fixed by the conductive adhesive layer.
  • a portable electronic device having a built-in electric shock protection function by providing at least one electric shock protection device for connecting between the conductor and the circuit unit in a portable electronic device such that a conductor such as a metal case is exposed to the outside This has the advantage of protecting internal circuits and users from leakage current and static electricity.
  • FIG. 1 is a diagram illustrating a portable electronic device with a built-in electric shock protection function according to an embodiment of the present invention.
  • FIG. 2 is a conceptual diagram illustrating a position where an electric shock protection device is applied in FIG.
  • FIG. 3 is a cross-sectional view of the electric shock protection device is applied to the camera module in FIG.
  • FIG. 4 is an overall perspective view showing an example of an electric shock protection device that can be used in a portable electronic device with an electric shock protection function according to an embodiment of the present invention
  • FIG. 5 is an exploded perspective view illustrating a lamination relationship of a plurality of sheet layers in FIG. 4;
  • FIG. 6 is a longitudinal sectional view of FIG. 4;
  • FIG. 7 to 11 are views showing various forms of internal electrodes and voids provided in the interior of the body in Figure 4,
  • FIG. 12 is a longitudinal sectional view showing another example of an electric shock protection device that may be used in a portable electronic device having an electric shock protection function according to an embodiment of the present invention
  • FIG. 13 is an example of an electric shock protection device that may be used in a portable electronic device having an electric shock protection function according to an embodiment of the present invention.
  • FIG. 14 is an exploded perspective view illustrating a lamination relationship of a plurality of sheet layers in FIG. 13;
  • FIG. 15 is a longitudinal sectional view of FIG. 13;
  • 16 to 19 are examples of an electric shock protection device that may be used in a portable electronic device having an electric shock protection function according to an embodiment of the present invention, and show various arrangement relations between the electric shock protection unit and the capacitor unit when the capacitor units are stacked.
  • Cross Section
  • FIG. 20 is a cross-sectional view showing another example of an electric shock protection device that may be used in a portable electronic device having an electric shock protection function according to an embodiment of the present invention
  • 21 to 27 are views showing various forms of the electric shock protection device of FIG.
  • FIGS. 28 to 33 are views showing various forms of conductive connection parts that can be used in a portable electronic device with an electric shock protection function according to an embodiment of the present invention.
  • 34 and 35 are exploded perspective views illustrating examples of various electric shock protection contactors that may be used in a portable electronic device having an electric shock protection function according to an embodiment of the present invention.
  • the portable electronic device 100 having an electric shock protection function includes an electronic device housing 110, a conductor 120, and an electric shock protection device.
  • the electronic device housing 110 may include a display unit 112 for displaying information, and various circuits and components for driving the electronic device are embedded therein.
  • the electronic device may be in the form of a portable electronic device that is portable and easy to carry.
  • the electronic device may be a mobile terminal such as a smart phone or a cellular phone, and may be a smart watch, a digital camera, a DMB, an e-book, a netbook, a tablet PC, a portable computer, or the like.
  • Such electronics may have any suitable electronic components including antenna structures for communication with an external device.
  • the device may be a device using local area network communication such as Wi-Fi and Bluetooth.
  • the electronic device housing 110 may be a housing of the mobile terminal.
  • the electronic device housing 110 may be made of conductive materials such as metal (aluminum, stainless steel, etc.), and may be made of a carbon-fiber composite material or other fiber-based composites, glass, ceramic, plastic, and a combination thereof.
  • the display unit 112 may be a touch screen type display used to collect user touch input.
  • the electronic device housing 110 may include a conductor 120 made of metal and exposed to the outside.
  • the conductor 120 may be provided to partially surround or entirely surround the side of the electronic device housing 110.
  • the conductor 120 is a ground part of a circuit board embedded in the electronic device housing 110 through an electric shock protection device 200, 200 ', 300, 300', 400, 400 'for protecting an internal circuit from leakage current and static electricity. It can be connected with.
  • the electric shock protection device 200, 200 ′, 300, 300 ′, 400, 400 ′ may be configured such that current leaked through the conductor 120 is transferred to the user side or static electricity is transferred to the circuit side when the user mounts the electronic device housing 110. Can be prevented.
  • Such an electric shock protection device 200, 200 ′, 300, 300 ′, 400, 400 ′ may be appropriately provided according to the number of conductors 120 provided in the electronic device housing 110. However, when a plurality of conductors 120 are provided, each of the conductors 121, 122, 123, and 124 is embedded in the electronic device housing 110 so that the electric shock protection devices 200, 200 ′, 300, 300 ′, 400, 400 ′ are individually connected.
  • each of the conductors 121, 122, and 123 is an electric shock protection device 200, 200 ′, 300, 300 ′, 400, 400. ') To protect the user from leakage current and to protect the circuitry inside the electronic device housing 110 from static electricity.
  • the electric shock protection devices 200, 200 ′, 300, 300 ′, 400, 400 ′ may be provided in various ways according to the corresponding roles of the conductors 121, 122, 123, 124.
  • the electric shock protection device 200, 200 ′, 300, 300 ′, 400, 400 ′ is connected to the conductor 122 to block leakage current and protect an internal circuit from static electricity. It may be provided in the form.
  • the electric shock protection devices 200, 200 ', 300, 300', 400, and 400 ' may increase the capacitance to increase the RF reception sensitivity. ) May be included.
  • the electric shock protection devices 200, 200 ′, 300, 300 ′, 400 and 400 ′ are provided on the conductor 124 surrounding the camera 130.
  • the electric shock protection device (200,200 ', 300,300', 400,400 ') may be provided in the form of blocking the leakage current and protecting the internal circuit from static electricity.
  • the portable electronic device 100 having the electric shock protection function includes a camera module 130, a conductive cover 132, a circuit board 140, a conductive connection unit 160, and an electric shock protection device ( 200).
  • the camera module 130 is an optical module including a lens, and is mounted on the circuit board 140 so that the lens faces outward.
  • the camera module 130 may include a data line for connecting with the circuit board 140.
  • the conductive cover 132 is made of a metal material and is disposed to cover a portion of the upper side of the camera module 130.
  • the conductive cover 132 may have a support part 134 extending horizontally under the conductive cover 132. That is, the conductive cover 132 may be mounted on the circuit board 140 through the support part 134.
  • the support part 134 may be formed along the outer periphery at a lower side of the conductive cover 132 or on a part of the outer periphery.
  • the conductive cover 132 may include a through hole 136 corresponding to the lens of the camera module 130 at the center of the upper surface.
  • the conductive cover 132 as described above has a rectangular shape, and has a support part 134 extending horizontally on a lower side thereof, and a through hole 136 having a circular or oval shape may be provided on an upper surface thereof.
  • the camera module 130 may be exposed only to the lens portion and the other portion is covered with the conductive cover 132 to be protected.
  • the conductive cover 132 may be spaced apart from the camera module 130 at a predetermined interval to protect the camera module 130 while preventing an external electrical influence.
  • the circuit board 140 is mounted with the camera module 130, and the conductive connection unit 160 and the electric shock protection device 200 are mounted.
  • the circuit board 140 may be provided with pads and wires such that the conductive connection unit 160 and the electric shock protection device 200 are electrically connected in series. That is, the circuit board 140 may include a pad corresponding to a shape of a lower surface of the conductive connection unit 160 for mounting the conductive connection unit 160, and the electric shock protection element for mounting the electric shock protection device 200. A pad corresponding to the external electrode shape of the 200 may be provided.
  • the conductive connecting portion 160 is in electrical contact with the conductive cover 132 and is mounted on the circuit board 140.
  • the conductive connection portion 160 may have an elastic force.
  • the conductive connection 160 may be any one of a conductive gasket, a silicone rubber pad, and a clip-shaped conductor.
  • the conductive connecting portion 160 may be disposed on one side of the support portion 134. That is, the conductive connection portion 160 may be disposed to contact a portion of the support portion 134 provided along the outer periphery of the conductive cover 132.
  • the conductive connecting portion 160 may be disposed under the conductive cover 132, and as a result, may be disposed vertically between the conductive cover 132 and the circuit board 140.
  • the conductive connecting portion 160 may protrude horizontally by an elastic force as the conductive cover 132 is pressed, the conductive connecting portion 160 is spaced apart from the camera module 130 at a predetermined interval so as not to have an electrical effect on the camera module 130. Can be.
  • the conductive connection portion 160 has been described as being vertically disposed between the conductive cover 132 and the circuit board 140, but is not limited thereto, and may be disposed horizontally with the conductive cover 132. .
  • the conductive connecting portion 160 may be disposed to be in electrical contact with the side surface of the conductive cover 132.
  • the conductive cover 132 may be mounted on the circuit board 140 through an insulator.
  • the electric shock protection device 200 is mounted on the circuit board 140 to be connected in series with the conductive connection unit 160.
  • the electric shock protection device 200 passes the static electricity flowing from the conductive cover 132 and breaks down the leakage current of the external power flowing into the ground of the circuit board 140, and thus the breakdown voltage satisfying the following equation. (Vbr) can have:
  • Vbr is the breakdown voltage of the electric shock protection device
  • Vin is a rated voltage of the external power supply.
  • the rated voltage may be a standard rated voltage for each country, and for example, may be any one of 240V, 110V, 220V, 120V, and 100V.
  • the electric shock protection device 200 may have different functions according to leakage current by external power, static electricity flowing from the conductor 120, and a communication signal.
  • the electric shock protection device 200 breaks down the breakdown voltage (or trigger). Since the voltage (Vbr) is larger than the overvoltage caused by the leakage current, it can be kept open. That is, since the breakdown voltage (Vbr) of the electric shock protection device 200 is greater than the rated voltage of the external power source of the portable electronic device, the conductive cover which can be attached to a human body such as a metal case by maintaining an open state without being electrically connected ( 132 may block the transmission of the leakage current.
  • the capacitor layer can block the DC component included in the leakage current, and since the leakage current has a relatively low frequency compared to the wireless communication band, it can block the leakage current by acting with a large impedance for the frequency.
  • the electric shock protection device 200 may protect the user from electric shock by blocking a leakage current to the external power introduced from the ground of the circuit unit 14.
  • the electric shock protection device 200 when static electricity flows from the outside through the conductive cover 132, the electric shock protection device 200 functions as a static protection device such as a suppressor or a varistor. That is, since the operating voltage of the suppressor or the varistor voltage (or breakdown voltage) of the varistor for the electrostatic discharge is smaller than the instantaneous voltage of the static electricity, the electric shock protection device 200 may pass static electricity by the instantaneous discharge. As a result, the electric shock protection device 200 has a low electrical resistance when the static electricity flows from the conductive cover 132 through the conductive connecting portion 160, so that the static electricity can pass through the static electricity without insulation breakdown.
  • the circuit portion of the circuit board 140 may include a separate protection device for bypassing static electricity to the ground.
  • the electric shock protection device 200 may pass the static electricity without being destroyed by the static electricity flowing from the conductive cover 132 through the conductive connecting portion 160, thereby protecting the internal circuit of the rear end.
  • the conductive cover 132 is disposed from the conductive cover 132. Since the static electricity flowing through the ground portion of the circuit board 140, it is possible to prevent damage to the internal circuit by the static electricity.
  • the electric shock protection device 200 by electrically blocking the conductive cover 132 and the circuit board 140 by the electric shock protection device 200, it is possible to prevent the current leaked by an external power supply to the conductive cover 132. Therefore, it is possible to prevent the electric shock of the user by the leakage current.
  • the portable electronic device 100 having the electric shock protection function may further include a support member 160 ′ between the other side of the support 134 and the circuit board 140. That is, the support member 160 ′ may be disposed at a portion of the support portion 134 where the conductive connection portion 160 does not contact.
  • the support member 160 ′ may be disposed at a position symmetrical with the conductive connecting portion 160 so that the conductive cover 132 may be stably fixed. That is, the conductive cover 132 may be provided with a support member having the same height on the opposite side for horizontal balance and rigid fixing because the conductive connection portion 160 is disposed at a portion of the lower portion of the conductive cover 132.
  • the support member 160 ′ may be formed of an insulator to electrically separate the conductive cover 132 from the substrate.
  • the support member 160 ′ may be the conductive connection 160. That is, at least two conductive connection parts 160 may be disposed under the conductive cover 132.
  • the portable electronic device 100 having the electric shock protection function may be provided in the electronic device housing 110 when the conductor 120 is exposed to the electronic device housing 110.
  • the electric shock protection devices 200, 200 ′, 300, 300 ′, 400 and 400 ′ connected to the conductor 120 may be built in to block leakage current and protect internal circuits from static electricity.
  • the electric shock protection device (200,200 ', 300, 300', 400, 400 ') itself can provide a high capacitance to play a complex role to increase the RF reception sensitivity at the same time. make sure As a result, the device can be made thinner and smaller by simplifying parts and reducing unnecessary mounting area.
  • the electric shock protection device having a low capacitance as well as the electric shock protection device having a high capacitance may be used according to the type of electronic device used, thereby realizing various types of characteristics.
  • Such an electric shock protection device 200, 200 ′, 300, 300 ′, 400, 400 ′ may be provided in the form of a suppressor or may be provided in the form of a varistor.
  • 4 to 6 is an example of a suppressor that can be used when the electric shock protection device is provided in the form of a suppressor in the portable electronic device 100 with an electric shock protection function according to an embodiment of the present invention.
  • the electric shock protection device 200 includes a body 210 and a pair of internal electrodes 211a and 212a as shown in FIGS. 4 to 6.
  • the body 210 normally passes a RF signal and protects a circuit of an electronic component upon application of static electricity and overvoltage.
  • the electronic component may be an electronic component used inside the portable terminal.
  • the body 210 has at least one pair of sheet layers 211 and 212 sequentially stacked, and the inner electrodes 211a and 212a provided on one surface thereof are disposed to face each other, and then press, fire or harden. It is formed integrally through.
  • the body 210 may be made of an insulator having a dielectric constant.
  • the insulator may be a low temperature sintered ceramic (LTCC), a high temperature sintered ceramic (HTCC) and a magnetic material.
  • the ceramic material is a metal oxide compound
  • the metal oxide compound is 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 It may include one or more selected.
  • a protection sheet layer 213 is disposed between the pair of internal electrodes 211a and 212a corresponding to each other to protect static electricity and to protect the circuit protection device and the peripheral circuits from overvoltage.
  • the protective sheet layer 213 is disposed between the pair of internal electrodes 211a and 212a and at least one void formed in a hollow form between the pair of internal electrodes 211a and 212a facing each other.
  • Forming member 125 is provided.
  • the protective sheet layer 213 may have a through hole 124 formed at a position where the pore forming member 125 is provided.
  • the body has a first sheet layer 211 having a first inner electrode 211 a on its upper surface and a second inner electrode 212 a on its lower surface.
  • the provided second sheet layer 212 is stacked on each other, and the protective sheet layer 213 is disposed between the first sheet layer 211 and the second sheet layer 212.
  • first sheet layer 211, the protective sheet layer 213, and the second sheet layer 212 are sequentially stacked so that the first internal electrode 211a and the second internal electrode 212a face each other. do.
  • the first internal electrode 211a and the second internal electrode 212a are disposed to face each other, and are disposed to be spaced apart from each other by the protective sheet layer 213, and the first internal electrode 211a is disposed. And one side of the second internal electrode 212a in contact with the pore-forming member 215, respectively.
  • the through hole 214 overlaps the first inner electrode 211 a and the second inner electrode 212 a disposed on the upper and lower portions, respectively, based on the protective sheet layer 213. Loss is formed to be located in the area.
  • the through hole 214 may be provided with a pore forming member 215.
  • the pore forming member 215 may be disposed between the internal electrodes 211a and 212a and may include discharge material layers 215a, 215b and 215c that are applied to the inner wall with a predetermined thickness along the height direction.
  • a discharge material layer is applied to the inner wall of the through hole 214 to have a predetermined thickness along the height direction, or at least a part of the through hole 214 is formed. It can be filled with a layer of discharge material.
  • the pore forming member 215 or the discharge material layer applied thereto may be provided such that an upper end thereof contacts the second internal electrode 212a and a lower end thereof contacts the first internal electrode 211a.
  • the pore 216 may be formed between the pair of internal electrodes 211a and 212a by the pore forming member 215. Static electricity introduced from the outside by the pores 216 may be discharged between the internal electrodes 211a and 212a. At this time, the electrical resistance between the internal electrodes 211a and 212a is lowered, and the voltage difference across the electric shock protection device 200 can be reduced to a predetermined value or less. Therefore, the electric shock protection device 200 may pass static electricity without breaking the insulation.
  • the discharge material constituting the discharge material layer (215a, 215b, 215c) has a low dielectric constant, no conductivity, and should not have a short when the overvoltage is applied.
  • 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 including SiC or silicon-based components.
  • the discharge material is made by mixing at least one material selected from SiC, carbon, graphite, and ZnO with at least one material selected from Ag, Pd, Pt, Au, Cu, Ni, W, and Mo at a predetermined ratio. It may be.
  • the discharge material may include a SiC-ZnO-based component.
  • Silicon carbide (SiC) component has excellent thermal stability, excellent stability in an oxidizing atmosphere, constant conductivity and thermal conductivity, and low dielectric constant.
  • the ZnO component has excellent nonlinear resistance characteristics and discharge characteristics.
  • SiC and ZnO are both conductive when used separately, but when the mixture is fired after mixing with each other, ZnO is bonded to the surface of the SiC particles to form an insulating layer.
  • the insulating layer blocks the Ag pass to provide higher insulation to the discharge material A, and improves resistance to static electricity, thereby solving the DC short phenomenon when the electric shock protection device is mounted on the electronic component. .
  • the discharge material has been described as including a SiC-ZnO-based component, but is not limited thereto.
  • the discharge material may be a component constituting the first internal electrode 211a and the second internal electrode 212a. It will be appreciated that nonconductive materials, including semiconductor materials or metal particles, may be used.
  • the discharge material layers 215a, 215b, and 215c applied to the inner wall of the pore forming member 215 may include a first portion 215a and the first portion (coated along the inner wall of the pore forming member 215).
  • the third part 215c may extend along the lower surface of the sheet layer 213 to be in contact with the second internal electrode 212a.
  • the discharge material layers 215a, 215b, and 215c are formed on the second and third portions 215b and 3rd from the upper and lower ends of the pore forming member 215 as well as the inner wall of the pore forming member 215. 215c is formed to extend, respectively, so as to increase the contact area between the first internal electrode 211a and the second internal electrode 212a.
  • the protective sheet layer 213 may be provided with a plurality of pore forming member 215. As such, when the number of the pore forming members 215 is increased, the discharge path of the static electricity is increased, thereby improving resistance to static electricity.
  • the protective sheet layer 213 disposed between the first sheet layer 211 and the second sheet layer 212 may be provided to have the same area as the first sheet layer 211 and the second sheet layer 212.
  • the first internal electrode 211a and the second internal electrode 212a corresponding to each other include an overlapping area and have a smaller area than the first sheet layer 211 and the second sheet layer 212. It may be possible.
  • first internal electrode 211a and the second internal electrode 212a may be formed to be spaced apart from each other at regular intervals, and may be formed in at least one pair.
  • first internal electrode 211a and the second internal electrode 212a may be electrically connected to the external electrodes 231 and 232 provided at both ends of the body 210, respectively.
  • first internal electrode 211a is connected to the first external electrode 231
  • second internal electrode 212a is electrically connected to the second external electrode 232, respectively. Voltage may be applied to the electrode 211a and the second internal electrode 212a.
  • the first internal electrode 211a and the second internal electrode 212a may include at least one of Ag, Au, Pt, Pd, Ni, and Cu, and the pair of external electrodes 231 and 232.
  • the silver may include any one or more components of Ag, Ni, and Sn components.
  • the interval between the internal electrodes 211a and 212a and the areas facing each other or the lengths overlapping each other may be configured to satisfy the breakdown voltage (or trigger voltage) Vbr of the electric shock protection device 200.
  • the interval between the internal electrodes 211a and 212a may be 10 to 100 ⁇ m.
  • the interval between the internal electrodes 211a and 212a may be 25 ⁇ m.
  • first internal electrode 211a and the second internal electrode 212a constituting the internal electrode in the body may be provided in various shapes and patterns, and the first internal electrode 211a and the second internal electrode may be provided. 212a may be provided in the same pattern or may be provided to have different patterns.
  • end portions of the pair of second internal electrodes 212a are provided on both ends of the bar-shaped first internal electrodes 211a having a predetermined length so as to overlap each other, and discharge on the inner wall.
  • One may be disposed in a region where the pore forming member 215 coated with the material layer overlaps.
  • the first internal electrode 211a and the second internal electrode 212a are formed in a substantially 'Y' shape so that two portions overlap each other and overlap each other on the inner wall.
  • the pore forming members 215 coated with the discharge material layer may be disposed in regions where one by one overlaps each other.
  • the first internal electrodes 211a are provided in two bars in a bar shape having a predetermined length
  • the second internal electrodes 212a are provided in two pieces in a substantially 'Y' shape.
  • the gaps may be disposed to overlap each other, and the pore forming members 215 coated with the discharge material layer on the inner wall may be disposed in four portions that overlap each other.
  • the first internal electrode 211a and the second internal electrode 212a are each provided in a bar shape having a predetermined length, and two discharge material layers are coated on the inner wall in an overlapping area.
  • Four pore forming members 215 may be spaced apart from each other.
  • the first internal electrode 211a is provided in one bar shape having a predetermined length
  • the second internal electrode 212a is provided in two bar shapes having a predetermined length.
  • a gap forming member 215 may be disposed on both ends of the first internal electrode 211 a so as to overlap a part of the first internal electrode 211 a and two discharge material layers are coated on the overlapping area.
  • the first internal electrode 211a and the second internal electrode 212a may be provided in various shapes and patterns, and when the first internal electrode 211a and the second internal electrode 212a are partially stacked. When placed so that they overlap each other, it is clear.
  • FIG. 12 is another example of the electric shock protection device that can be used when the electric shock protection device is provided in the form of a suppressor in the portable electronic device 100 with an electric shock protection function according to an embodiment of the present invention.
  • the gap 219 may be formed between the internal electrodes 212a 'and 212b' without using a separate pore forming member.
  • the sidewall of the gap 219 may include the discharge material layer 217.
  • the electric shock protection device 200 may include a pair of internal electrodes 212a 'and 212b' which are horizontally spaced at a predetermined interval.
  • the internal electrodes disposed to face each other may be provided in various shapes and patterns in which polygons, circles, ellipses, spirals, and combinations thereof are combined.
  • the internal electrodes facing each other may be provided in the same pattern and shape or may have different patterns and shapes.
  • a gap 219 may be formed between the pair of internal electrodes 212a 'and 212b'.
  • the gaps 219 may be formed to have a height greater than the height of the pair of internal electrodes 212a 'and 212b', and may be formed to have a width greater than a gap between the pair of internal electrodes 212a 'and 212b'. Can be.
  • the space between the internal electrodes 212a 'and 212b' is large. It is possible to reduce the incidence of defects that may occur.
  • the void is a space in which discharge is initiated by a pair of internal electrodes 212a 'and 212b' when static electricity is introduced, and the volume of the void is preferably set to satisfy the resistance to static electricity.
  • the volume of the voids may be 1-15% of the total volume of the electric shock protection device 200.
  • the volume of the gap is less than 1% of the total volume of the electric shock protection device 200, a short may occur between the pair of internal electrodes 212a 'and 212b', and the resistance to static electricity may deteriorate. have.
  • the volume of the air gap exceeds 15% of the total volume of the electric shock protection device 200, the total volume of the electric shock protection device 200 is increased, the mechanical strength is lowered, and the warpage or depression is caused by deformation during firing. May occur.
  • the internal electrodes 212a 'and 212b' are spaced apart from each other to form voids in the body composed of at least one pair of sheet layers 211,212 and 213.
  • the pair of internal electrodes 212a 'and 212b' are spaced apart at regular intervals in a parallel direction on the same plane.
  • the pair of internal electrodes 212a 'and 212b' are spaced apart from each other to form a gap d on an upper surface of the first sheet layer 211.
  • the gap distance between the pair of internal electrodes 212a 'and 212b' may be 10 to 100 ⁇ m.
  • the pair of internal electrodes 212a 'and 212b' are pattern printed on the top surface of the first sheet layer 211.
  • a gap 219 is provided between the pair of internal electrodes 212a 'and 212b' corresponding to each other to protect static electricity, protect the circuit protection device and peripheral circuits from overvoltage, and block leakage current.
  • the air gap 219 is disposed between the pair of internal electrodes 212a 'and 212b' arranged in parallel with each other on the same plane, and is provided in a hollow shape so as to fill an air, and the air gap 219 is opened.
  • the second sheet layer 212 is stacked on the upper side.
  • a plurality of such voids 219 may be provided to be spaced apart along the width direction of the internal electrodes 212a 'and 212b'. As such, when the number of the pores 219 is increased, the discharge path of the static electricity is increased, thereby improving resistance to static electricity.
  • the gap 219 is formed to have a height that exceeds the height from the upper surface of the first sheet layer 211 to the upper ends of the internal electrodes 212a 'and 212b'. That is, the gap 219 is provided to have a height that exceeds the overall height of the internal electrodes 212a 'and 212b', so that the volume of the entire void 219 can be enlarged.
  • the first portion of the gap 219 may be provided to extend on the upper surface of at least one electrode of the pair of internal electrodes 212a ', 212b' spaced apart from each other, a pair of internal electrodes It may extend all over the top surface of 212a 'and 212b'.
  • the gap 219 includes a first portion 222a having the same height as the internal electrodes 212a 'and 212b' and a second portion extending a predetermined height from an upper end of the first portion 222a. .
  • the void 219 includes a third portion extending downwardly from the lower end of the first portion by a predetermined height, and the third portion extends on the lower surfaces of the internal electrodes 212a 'and 212b'. It may be provided in the form.
  • a separate receiving groove for accommodating the third portion is formed on the upper surface of the first sheet layer 211. It can be formed in a predetermined depth downward from the.
  • the voids 219 are formed by removing the voids by heat applied during the sintering process after the voids are pattern printed on the gaps.
  • the void material in order to prevent the pore material from being deformed or damaged by pressure in the process of compressing the pore material after stacking the first sheet layer 211 and the second sheet layer 212 to form a body, Used.
  • the pore material is made of a material that can be decomposed by high temperature heat so that it can be removed in the process of laminating a plurality of sheet layers and firing.
  • the pore material may be made of a material that is decomposed in the temperature range between 200 ⁇ 2000 °C.
  • the electric shock protection Capacitors 220a and 220b may be stacked on at least one side of an upper portion or a lower portion of the portion to increase capacitance.
  • the electric shock protection device 200 ′ has a plurality of sheet layers 221, 222, 223, 224, 225, 226, 227, and 228, as shown in FIGS. 13 to 15, at least of the lower portion of the first sheet layer 211 or the upper portion of the second sheet layer 212. Stacked on one side may include a capacitor unit (220a, 220b) for increasing the capacitance.
  • the electric shock protection device 200 and the capacitor parts 220a and 220b may be formed by stacking a plurality of sheet layers 211, 212, 213, 221, 222, 223, 224, 225, 226, 227, and 228.
  • the sheet layers 211, 212, 213, 221, 222, 223, 224, 225, 226, 227, and 228 may be formed of an insulator having a dielectric constant.
  • low temperature sintered ceramic (LTCC), high temperature sintered ceramic (HTCC) and magnetic materials may be used.
  • the electric shock protection device 200 and the capacitor units 220a and 220b have a plurality of sheet layers having electrodes 211a, 212a, 221a, 222a, 223a, 224a, 225a, 226a, 227a and 228a on one surface thereof.
  • 211, 212, 221, 222, 223, 224, 225, 226, 227, 228 are sequentially stacked, and a plurality of electrodes 211a, 212a, 221a, 222a, 223a, 224a, 225a, 226a, 227a, 228a disposed on each surface thereof are disposed to face each other, and then pressed and fired. It is formed integrally through.
  • the capacitor parts 220a and 220b stacked on at least one side of the upper and lower parts of the electric shock protection device 200 are provided to increase the RF reception sensitivity by providing capacitance.
  • the capacitor parts 220a and 220b are formed by stacking at least one sheet layer 221, 222, 223, 224, 225, 226, 227, and 228a having electrodes 221a, 222a, 223a, 224a, 225a, 226a, 227a and 228a on one surface thereof. It is stacked on at least one side of the upper and lower parts of the electric shock protection device 200, and is connected to the external electrodes 231 and 232 in parallel with the electric shock protection device 200.
  • the capacitor units 220a and 220b may be provided as one sheet layer having electrodes on one surface thereof, and may be stacked on the electric shock protection device 200.
  • the plurality of sheet layers may be stacked to provide high capacitance. This allows the RF signal to pass smoothly.
  • the number of sheet layers 221, 222, 223, 224, 225, 226, 227, and 228 constituting the capacitor units 220a and 220b may be provided as an appropriate number according to the capacitance, and the more the number of the stacked sheet layers 221, 222, 223, 224, 225,226, 227, 228, the external electrodes 131, 132. With respect to the electric shock protection device 200 in parallel with each other, the overall capacitance is increased.
  • the capacitor parts 220a and 220b are connected in parallel with the electric shock protection device 200 with respect to external electrodes, thereby preventing static electricity through the electric shock protection device 200.
  • a single electric shock protection device 100 unlike the conventional use of a separate component for increasing RF reception sensitivity together with a suppressor, varistor, or zener diode for protecting a circuit against static electricity, a single electric shock protection device 100 Of course, there is an advantage to increase the RF reception sensitivity.
  • the capacitor units 220a and 220b are provided on the lower portion of the first sheet layer 211 and the upper portion of the second sheet layer 212 constituting the electric shock protection device 200.
  • the first capacitor part 220a and the second capacitor part 220b formed by stacking the sheet layers 221, 222, 223, 224, 225, 226, 227, and 228 in the same number may be provided.
  • electrodes connected to the external electrodes 231 and 232 are provided on one surface of each of the sheet layers 221, 222, 223, 224, 225, 226, 227 and 228 disposed under the first sheet layer 211 and the second sheet layer 212. Accordingly, the first capacitor portion 220a and the second capacitor portion 220b having the same capacitance are disposed symmetrically on the upper side and the lower side of the protective sheet layer 213.
  • the voids 216 formed in the protective sheet layer 213 are also formed at the center of the protective sheet layer 213 so that the upper, lower, left, and right sides of the protective sheet layer 213 may be symmetrically formed. .
  • capacitor units 220a and 220b may be stacked in various ways with respect to the electric shock protection device 200.
  • the capacitor units 220a and 220b may be formed by stacking a plurality of sheet layers 221, 222, 223, 224, 225, and 226, and may be stacked only on an upper side of the second sheet layer 212 (see FIG. 16). It may be laminated only on the lower side of 211 (see FIG. 17).
  • each capacitor unit 220a and 220b may be disposed between the plurality of electric shock protection devices 200.
  • the parts 220a and 220b may be symmetrically arranged with respect to the electric shock protection device 200, and a plurality of voids 216 may be provided in the electric shock protection device 200.
  • the plurality of capacitor parts may be provided symmetrically or asymmetrically with respect to the electric shock protection device 200, and the plurality of electric shock protection devices 200 are disposed between the plurality of capacitor parts. It may be possible.
  • the number of the capacitors 220a and 220b and the electric shock protection device 200 constituting the electric shock protection device is not limited and may be provided in various numbers according to desired capacitance, and the electric shock protection device 200 and the capacitor It should be noted that the stacking relationship of the parts 220a and 220b may also be variously changed.
  • 20 to 27 may be used when the electric shock protection device 200, 200 ', 300, 300', 400, 400 'is provided in the form of a varistor in the portable electronic device 100 with an electric shock protection function according to an embodiment of the present invention. It is an example of an electric shock protection device.
  • the electric shock protection devices 300 and 300 ′ may include a first varistor material layer 310, a second varistor material layer 320, and internal electrodes 312 and 312 322 as illustrated in FIGS. 20 and 21. have.
  • the first varistor material layer 310 and the second varistor material layer 320 are made of a varistor material, for example, using a semiconducting material such as ZnO, SrTiO3, BaTiO3, SiC, or Pr and Bi-based materials.
  • the first varistor material layer 310 and the second varistor material layer 320 may be stacked in a vertical direction. In this case, the first varistor material layer 310 and the second varistor material layer 320 may be set such that the particle size of the varistor material satisfies the breakdown voltage Vbr.
  • the internal electrodes may be spaced apart from each other by a plurality of first internal electrodes 312 and 312 ′ spaced at a predetermined distance L1 on the first varistor material layer 310 and by a predetermined distance L1 on the second sheet 320.
  • the second internal electrode 322 may be included.
  • the breakdown voltage Vbr of the electric shock protection device 300 may be the sum of the unit breakdown voltages formed between the first internal electrodes 312 and 312 ′ and the second internal electrodes 322 which are closest to each other. That is, the breakdown voltages Vbr of the varistor 100 are unit breakdown voltages formed between the first internal electrodes 312 and 312 ′ and the second internal electrodes 322, respectively, and the first internal electrodes 312 and 312 formed in series. ') And the number of second internal electrodes 322 may be determined.
  • the thickness of the first internal electrodes 312 and 312 ′ and the second internal electrode 322 may be 2-10 ⁇ m. If the thicknesses of the first internal electrodes 312 and 312 'and the second internal electrode 322 are less than 2 ⁇ m, the internal electrodes cannot serve as internal electrodes. If the thickness is greater than 10 ⁇ m, the distance between the internal electrodes is limited. Therefore, the thickness of the internal electrodes or varistor material layers arranged in parallel increases, and the overall size of the electric shock protection device 100 increases, which may adversely affect miniaturization.
  • Each of the first internal electrodes 312 and 312 ′ and the second internal electrodes 322 may be disposed such that at least some of the first internal electrodes 312 and 312 ′ do not overlap each other. That is, each of the first internal electrodes 312 and 312 ′ and the second internal electrodes 322 may be alternately arranged to overlap at least a portion of the first internal electrodes 312 and 312 ′, or may be disposed to cross each other so as not to overlap each other.
  • the first internal electrode or the second internal electrode does not leak static electricity or a leakage current to an adjacent external electrode (not shown) of the internal electrodes 312, 312 ′ and 322, and between the internal electrodes 312, 312 ′ and 322. It is preferable that the interval is set so that it can proceed normally.
  • the separation distance L1 between one first internal electrode 312 and 312 ′ and the neighboring second internal electrode 322 is the first internal electrode 312 and 312 ′ and the second internal electrode 322. It is preferable to form larger than the shortest distance d1 between.
  • the second internal electrode 322 may be formed such that a distance from an adjacent external electrode (not shown) is greater than a separation interval between the first internal electrodes 112 and 122.
  • the external electrode is not shown, similar to FIG. 4, it is clear that the external electrodes are disposed at both ends of the internal electrodes 312 and 322.
  • the first varistor material layer 310 may be provided with two first internal electrodes 312 and 312 ', and the two first internal electrodes 312 and 312' are spaced side by side on the same plane. Can be deployed.
  • the second sheet 320 may be provided with a second internal electrode 322 on one surface thereof.
  • the first varistor material layer 310 and the second sheet 320 may be disposed such that the second internal electrodes 322 are spaced apart from the first internal electrodes 312 and 312 by a predetermined interval in the vertical direction. Laminated in the up and down directions so that.
  • the second internal electrodes 322 may be disposed such that both end sides thereof may overlap a predetermined region with one end sides of the two first internal electrodes 312 and 312 ′. To this end, a central portion of the second internal electrode 322 may be disposed at a central portion of the gap L1 formed between the two first internal electrodes 312 and 312 ′.
  • the first varistor material layer 310 in which the two first electrodes 312 and 312 'are formed may be stacked on the second varistor material layer 320 in which one second electrode 322 is formed ( 20 may be stacked under the second varistor material layer 320 (see FIG. 21).
  • 22 to 27 are various embodiments of the electric shock protection device when the electric shock protection device according to the embodiment of the present invention is a varistor.
  • the electric shock protection device 400 may include a plurality of unit devices formed in parallel by the first internal electrodes 312 and 312 ′ and the second internal electrodes 322.
  • the electric shock protection device 400 includes two first varistor material layers 310 and two second internal electrodes formed with two first internal electrodes 312 and 312 ′.
  • One second varistor material layer 320 having the 322 formed thereon may be alternately stacked.
  • the two first varistor material layers 310 may be stacked in the form of upper and lower portions of the second varistor material layer 320, respectively.
  • the second internal electrodes 322 formed on the second varistor material layer 320 may include the first internal electrodes 312 and 312 ′ disposed at both ends thereof and the second internal electrodes 322 disposed below. It is disposed so as to overlap a predetermined area with one end side.
  • the first internal electrodes 312 and 312 'disposed on the second varistor material layer 320 and the first internal electrodes 312 and 312' disposed under the second varistor material layer 320 are upper and lower sides.
  • the second internal electrode 322 may be disposed side by side in the direction and between the first internal electrodes 312 and 312 ′ spaced apart from each other in the vertical direction.
  • the center portion of the second inner electrode 322 may be disposed to be positioned at the center portion of the gap L1 formed between two first inner electrodes 312 and 312 ′ disposed on the same plane.
  • the first varistor material layer 310 and the second varistor material layer 320 may have a gap d1 between the first internal electrodes 312 and 312 ′ and the second internal electrode 322 as described above, or a gap therebetween. It can be arranged in various stacking orders while satisfying (L1).
  • discharge paths of static electricity may be increased, thereby improving resistance to static electricity.
  • the electric shock protection device 400 ′ may include one first varistor material layer 310 and one first formed with two first internal electrodes 312 and 312 ′.
  • Two second varistor material layers 320 on which the internal electrodes 322 are formed may be alternately stacked.
  • the two second varistor material layers 320 may be stacked in the form of upper and lower portions of the first varistor material layer 310, respectively.
  • the second internal electrodes 322 formed on the second varistor material layer 320 may be disposed at positions where both end sides thereof overlap with the pair of first internal electrodes 312 and 312 ′ spaced apart from each other. Can be deployed.
  • the second internal electrode 322 is preferably set to a gap so that the static electricity or leakage current does not leak to the external electrode (not shown), and proceeds normally to the first internal electrodes (312, 312 ').
  • the second internal electrode 322 may have a distance from an adjacent external electrode (not shown) to be greater than a gap d1 between the first internal electrodes 312 and 312 ′.
  • the electric shock protection device 400 ′ may include unit devices formed by the first internal electrodes 312 and 312 ′ and the second internal electrodes 322 in parallel or in parallel. It may be provided in plural in series.
  • first varistor material layers 310 and second varistor material layers 320 may be alternately stacked in the vertical direction.
  • the uppermost layer and the lowermost layer are stacked such that the inner electrode connected to the outer electrode (not shown) is disposed.
  • the first internal electrode 312 connected to the external electrode (not shown) may be disposed on the uppermost layer and the lowermost layer.
  • the electric shock protection device 400 ′ may increase the discharge path of static electricity by stacking the first varistor material layer 310 and the second varistor material layer 320, thereby improving resistance to static electricity. .
  • the number of the first internal electrodes 312 and 312 ′ and the second internal electrodes 322 to satisfy the breakdown voltage Vbr of the electric shock protection device 400 ′ may be determined according to the unit breakdown voltage formed therebetween. have. That is, as illustrated in FIG. 27, the first varistor material layer 310 ′ and the plurality of second internal parts in which the plurality of first internal electrodes 312, 312 ′ and 312 ′′ are spaced apart in parallel in a horizontal direction on the same plane are formed.
  • the electrodes 322, 322 ′ and 322 ′′ may be provided in such a manner that the second varistor material layers 320 ′ formed to be spaced apart in parallel in the horizontal direction on the same plane are stacked.
  • the plurality of first internal electrodes 312, 312 ′ and 312 ′′ adjacent to each other are disposed between the plurality of second internal electrodes 322, 322 ′ and 322 ′′ disposed at an upper portion or a lower portion thereof so that a part thereof overlaps each other.
  • conductive connection unit 160 that can be used in the portable electronic device 100 with the electric shock protection function according to an embodiment of the present invention.
  • the conductive connection 160 may be a conductive gasket.
  • the conductive gasket 160 may be integrally formed of a conductive material having elastic force.
  • the conductive gasket 160 may include, for example, at least one of a polymer body, a natural rubber, a sponge, a synthetic rubber, a foam, a heat resistant silicone rubber, and a tube in which the conductive paste is manufactured by thermocompression bonding.
  • the conductive gasket 160 is not limited thereto and may include a conductive material having elastic force.
  • the conductive gasket 160 may be in surface contact with a conductor 120 such as the conductive cover 132, and may be mounted on the circuit board 140 to be electrically connected to the electric shock protection devices 200, 300, and 400.
  • the silicone rubber pad includes a body 261 and a conductive wire 262.
  • the body 261 may be made of silicone rubber, and an upper portion thereof may be in surface contact with a conductor 120 such as the conductive cover 132, and may be mounted on the circuit board 140 to be electrically connected to the electric shock protection devices 200, 300, and 400. Can be connected.
  • the conductive wire 262 may be vertically formed in the body 261.
  • the conductive wire 262 is to improve the electrical contact with the conductive cover 132 and to compensate for the elastic force of the body 261.
  • the conductive wire 262 when the conductive wire 262 is pressed by the conductive cover 132, the upper end thereof is bent downward, and when the conductive cover 132 is removed, the conductive wire 262 is restored to its original vertical state, thereby The elastic force of 261 can be compensated for.
  • the silicone rubber pad 360 includes a body 361 and a conductive wire 362.
  • the body 361 may be made of silicone rubber, and an upper portion thereof may be in surface contact with a conductor 120 such as the conductive cover 132, and may be mounted on the circuit board 140 to be electrically connected to the electric shock protection devices 200, 300, and 400. Can be connected in series.
  • the conductive wire 362 may be diagonally formed in the body 361.
  • the conductive wire 362 is to improve the electrical contact with the conductive cover 132 and to compensate for the elastic force of the body 361.
  • the conductive wire 362 when the conductive wire 362 is pressed by the conductive cover 132, the upper end is inclined left and right, and when the conductive cover 132 is removed, the conductive wire 362 is restored to its original vertical state, thereby The elastic force of the body 361 may be complemented.
  • the conductive wire 362 when the conductive wire 362 is inclined by the pressing force of the conductive cover 132, the contact with the conductive cover 132 is excellent, and therefore, conductivity such as leakage current, static electricity or a communication signal may be improved. have.
  • the conductive wire 362 has superior conductivity of the communication signal, good elastic restoring force, and long-term use, as compared with the vertically formed conductive wire 262 of FIG. 29 bent downward by the pressing force of the conductive cover 132. It may be possible.
  • the silicone rubber pad 460 when the conductive connection is a silicone rubber pad 460, the silicone rubber pad 460 includes a body 461, a conductive layer 462, and a contact 463.
  • the body 461 may be made of silicone rubber, and a lower portion thereof may be mounted on the circuit board 140 and electrically connected to the electric shock protection devices 200, 300, and 400.
  • the conductive layer 462 may be horizontally cross laminated in the body 461 and may be a plurality of layers made of a curable Ag paste.
  • the conductive layer 462 improves electrical contact with the conductive cover 132 and compensates for the elastic force of the body 461.
  • the conductive layer 462 when the conductive layer 462 is pressed by the conductive cover 132, it is pressed downward near the center portion thereof, and when the conductive cover 132 is removed, it is restored to its original horizontal state.
  • the elastic force of the body 461 may be compensated for.
  • the conductive layer 462 is elastic compared with the vertically formed conductive wire 262 of FIG. 29 or the diagonally formed conductive wire 362 of FIG. 30 inclined left and right by the pressing force of the conductive cover 132. It has good resilience and can be used for a long time.
  • the contact part 463 may be formed in a curved protrusion shape on the upper side of the body 461.
  • the contact portion 463 may increase the contact area with the conductive cover 132 by contacting the conductive cover 132 with a plurality of lines or surfaces.
  • the silicon rubber pad 460 may improve conductivity of leakage current, static electricity, or a communication signal.
  • the conductive connecting portion is a silicone rubber pad 560 including conductive particles
  • the silicone rubber pad 560 includes a body 562, a conductive portion 564, and a contact portion 566. ).
  • the body 562 may be made of a non-conductive silicone rubber, and may be provided with a through hole 563 vertically penetrating through a plurality of positions therein. At this time, the body 562 is in contact with the conductive cover 132 through the contact portion 566 formed on one side, and is mounted on the circuit board 140 through the contact portion 566 formed on the other side of the electric shock It may be electrically connected to the protection elements 200, 300, and 400.
  • the conductive portion 564 may be made of conductive silicone rubber and conductive particles.
  • the conductive portion 564 may be formed by filling conductive silicon rubber and conductive particles together in the plurality of through holes 563.
  • the conductive silicone rubber has a function of fixing the position of the conductive particles in the through hole 563, the conductive particles may be arranged regularly or irregularly distributed in the conductive silicone rubber.
  • the conductive particles are not energized apart from each other when no pressure or heat is applied from the outside, and may be in contact with each other by the contraction of the conductive silicone rubber when the pressure or heat is applied from the outside. .
  • the conductive part 564 may be electrically contacted with the conductive cover 132 by conductive particles, and may be contracted and expanded by conductive silicone rubber. Thus, the conductive portion 564 can provide both the electrical contact and the elastic restoring force by the pressure at the same time.
  • the conductive portion 564 when the conductive portion 564 is pressed by the conductive cover 132, the conductive silicone rubber is contracted, the conductive particles are in contact with each other, the electrical connection is made by the conductive particles, When the conductive cover 132 is removed, it may be restored to its original state by the elastic force of the conductive rubber. Accordingly, the conductive portion 564 has superior elastic restoring force as compared to the conductive wires 262 and 362 or the conductive layer 462 of FIGS. 29 to 31, and in particular, is made of the same or similar material as the body 562. Can be reduced and thus prolonged use is possible.
  • the contact part 566 may be formed in a curved protrusion shape on both sides of the conductive part 564.
  • the contact portion 566 may increase the contact area with the conductive cover 132 by contacting the conductive cover 132 with a plurality of lines or surfaces. Accordingly, the silicon rubber pad 560 may improve the leakage current, the static electricity, or the conductivity of the communication signal.
  • the clip-shaped conductor 660 when the conductive connection is a clip-shaped conductor 660, the clip-shaped conductor 660 includes a contact portion 661, a bent portion 662, and a terminal portion 663. .
  • the contact part 661 may have a curved shape and may be in electrical contact with the conductive cover 160.
  • the bent portion 662 extends from the contact portion 661 and may have an elastic force.
  • the terminal part 663 may include a terminal electrically connected to the electric shock protection devices 200, 300, and 400 through the circuit board 140.
  • the contact portion 661, the bent portion 662, and the terminal portion 663 may be integrally formed of a conductive material having elastic force.
  • 34 and 35 illustrate examples of the conductive contactors 700 and 800 that may be used in the portable electronic device 100 having the electric shock protection function according to an embodiment of the present invention.
  • the elements 200, 300, 400 and the conductive connectors 160, 260, 360, 460, 560, 660 are integrally formed.
  • Such conductive contactors 700 and 800 may be suitable for miniaturization of a portable electronic device by eliminating the need for a separate device for implementing a corresponding function and an additional device between the devices.
  • the conductive contactor 700 includes a conductive connection 760 and an electric shock protection device 720.
  • the conductive connection 760 is shown in a box shape, but is not limited thereto. That is, the conductive connection portion 760 may be the conductive gasket 160 described with reference to FIGS. 28 to 32, the silicone rubber pads 260, 360, 450, 560, and the clip-shaped conductor 660 having elastic force.
  • an external electrode 721 and a connection electrode 722 may be formed on the bottom surface and the top surface, respectively.
  • the conductive adhesive layer 711 may be applied to the connection electrode 722 on the upper surface of the electric shock protection device 720, and the conductive connection 760 may be stacked through the conductive adhesive layer 711.
  • connection electrode 722 may be one of the external electrodes of the electric shock protection device 720 as shown in FIGS. 4 and 5.
  • a connecting electrode or an intermediate electrode for connecting between the external electrode and the inner electrode may be provided.
  • the electric shock protection device 720 is described as being disposed below the conductive connection portion 760, but is not limited thereto.
  • the electric shock protection device 720 may be integrally formed in the horizontal direction of the conductive connection portion 760.
  • the electric shock protection contactor 800 may include an accommodating part 82a on the electric shock protection device 820, as shown in FIG. 35. That is, an accommodating part 820a is provided on the upper side of the electric shock protection element 820 to accommodate the clip-shaped conductor 860, and at least the clip-shaped conductor 860 is provided in the accommodating part 820a. Some may be inserted.
  • connection electrode 822 is formed to be exposed to the outside from the bottom of the receiving portion 820a.
  • the connection electrode 822 may be one of the external electrodes of the electric shock protection device 820 as shown in FIGS. 4 and 5.
  • a connecting electrode or an intermediate electrode for connecting between the external electrode and the inner electrode may be provided.
  • the clip-shaped conductor 860 may be stacked on the connection electrode 822 through the conductive adhesive layer 711.
  • the accommodating part 820a may serve as a side stopper, and thus the clip-shaped conductor 860 may not include a separate side stopper, thus reducing manufacturing cost.
  • the clip-shaped conductor 860 may not include a separate side stopper, thus reducing manufacturing cost.
  • by inserting at least a portion of the clip-shaped conductor 860 into the receiving portion 820a it is possible to prevent twisting or bending after joining, in particular, to fall or fall out of the post- SMD reflow process. You can prevent it.
  • the conductive connection 860 is shown as a clip-shaped conductor, but is not limited thereto. That is, the conductive connector 860 may be any one of the conductive gasket 160 and the silicone rubber pads 260, 360, 450, and 560 described with reference to FIGS. 28 to 31.

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Abstract

L'invention concerne un dispositif électronique portable comportant une fonction de protection intégrée contre les chocs électriques. Le dispositif électronique portable comportant une fonction de protection intégrée contre les chocs électriques selon un mode de réalisation illustratif de la présente invention comprend : une carte de circuit imprimé ; un module de caméra monté sur la carte de circuit imprimé ; un couvercle conducteur disposé de façon à recouvrir une partie de la partie supérieure du module de caméra ; une partie de connexion conductrice qui est en contact électrique avec le couvercle conducteur et est montée sur la carte de circuit imprimé ; et un élément de protection contre les chocs qui est monté sur la carte de circuit imprimé qui doit être connectée en série à la partie de connexion conductrice, l'électricité statique introduite par le couvercle conducteur traversant l'élément de protection contre les chocs, et l'élément de protection contre les chocs bloquant un courant de fuite d'une source d'alimentation externe introduite par une partie de mise à la terre de la carte de circuit imprimé.
PCT/KR2016/000989 2015-01-29 2016-01-29 Dispositif électronique portable comportant une fonction de protection intégrée contre les chocs électriques WO2016122245A1 (fr)

Priority Applications (2)

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CN201680007718.0A CN107211528B (zh) 2015-01-29 2016-01-29 内置有触电保护功能的便携式电子设备
US15/547,358 US10631448B2 (en) 2015-01-29 2016-01-29 Portable electronic device with embedded electric shock protection function

Applications Claiming Priority (4)

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KR20150014564 2015-01-29
KR10-2015-0014564 2015-01-29
KR10-2016-0011084 2016-01-29
KR1020160011084A KR101917787B1 (ko) 2015-01-29 2016-01-29 감전보호기능이 내장된 휴대용 전자기기

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CN108010436A (zh) * 2016-10-28 2018-05-08 三星显示有限公司 显示装置
CN108990243A (zh) * 2018-07-12 2018-12-11 维沃移动通信有限公司 一种移动终端

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CN108990243B (zh) * 2018-07-12 2021-04-06 维沃移动通信有限公司 一种移动终端

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