KR20190095770A - Fire and explosion prevention device and mobile device including the same - Google Patents

Abstract

According to various embodiments of the present invention, provided are an apparatus for preventing fire and explosion and a mobile device including the same. To solve a technical problem, provided are the apparatus for preventing fire and explosion configured to quickly release a gas by a safety vent of a battery when the battery starts thermal run away, to release the gas to a specific part of a mobile device case by release pressure, and to provide a release means so that the mobile device case is not to be burst, fired, or exploded, and the mobile device including the same. To this end, the mobile with a case of an electronic device includes the apparatus for preventing fire and explosion forming a battery cell having the safety vent and an accommodation unit accommodating the battery cell, and releasing and guiding an internal gas to the outside, when the safety vent is opened to release the internal gas of the battery cell.

Description

Fire and explosion prevention device and mobile device including the same {FIRE AND EXPLOSION PREVENTION DEVICE AND MOBILE DEVICE INCLUDING THE SAME}

Various embodiments of the present invention relate to an apparatus for preventing fire and explosion and a mobile device including the same.

Lithium-ion batteries have a larger battery capacity than previous batteries, but they are more explosive because they use flammable electrolytes. Accordingly, the battery is equipped with various safety devices to prevent most dangers. Mainly, the electronic circuit (eg, battery monitoring system (BMS)) detects and controls the use condition of the battery. The BMS detects and controls electrical error conditions (overcharge, overdischarge, short circuit, temperature), but the risk of thermal runaway due to internal factors such as internal short circuit cannot be detected and controlled by the conventional technology, and the expansion and leakage of battery As safety issues continue to emerge as a social problem, they continue to smoke, ignite and explode.

In particular, mobile devices corresponding to battery thermal runaway do not have a safeguard against this. In general, since a mobile device is worn, grasped, possessed or manipulated by the user due to its use characteristics, the mobile device is directly injured by the ruptured case during the explosion, or is directly connected to the user's human body by explosion or ignition after the explosion. It is causing enormous secondary property damage to use and living space.

In general, when a positive electrode and a negative electrode of a battery, which are insulated by a separator (separator) due to overcharge / over-discharge or dendrites are formed due to the inflow of foreign matters in battery manufacturing, the internal temperature is increased by the flow of current between the positive electrode and the negative electrode. It rises sharply and the membrane shrinks or melts, further increasing the positive / cathode short-circuit phenomenon, which intensifies this process (thermal runaway). That is, when an internal short circuit (shrinkage or melting of the separator) occurs, the electrolyte is decomposed to generate a flammable gas, thereby swelling (expanding) the battery case, which eventually causes the battery case to rupture and release gas. A ignition / explosion phenomenon occurs due to the contact of internal gas and oxygen.

The above-described information disclosed in the background technology of the present invention is only for improving the understanding of the background of the present invention, and thus may include information that does not constitute the prior art.

An object to be solved according to various embodiments of the present invention is to burst the mobile device case by the gas discharged by the vent of the battery to the specific portion of the mobile device case by the gas discharge pressure when the thermal runaway of the battery is started To provide a fire and explosion prevention device having a release means so as not to ignite, ignite, or explode, and a mobile device including the same.

The problem to be solved according to various embodiments of the present invention is to release the gas before the explosion or ignition resulting from the rupture of the vulnerable part of the mobile device case after the discharge pressure of the combustible gas of the battery reaches a predetermined relatively high pressure The present invention provides a ignition and explosion prevention device capable of releasing a gas without rupturing or deforming the mobile device through the means and blocking the inflow of air among the three elements of combustion or maintaining the concentration below the combustion, and a mobile device including the same. .

The problem to be solved according to various embodiments of the present invention is to control the release pressure of the gas discharge means to a condition below the burst of the mobile device case to prevent the explosion of the mobile device case at high pressure (explosion prevention) To provide a fire and explosion prevention device and a mobile device including the same that can minimize the personal injury of the user.

The problem to be solved according to various embodiments of the present invention is to close the gas discharge means after the gas discharge means of the gas release means to block the inflow of air to prevent asphyxiation (ignition prevention), accordingly ignition and accordingly An object of the present invention is to provide a fire and explosion prevention device capable of preventing a fire and a mobile device including the same.

Problems to be solved in accordance with various embodiments of the present invention to be installed in a direction that does not face the human body under the conditions of wearing or gripping or possession or operation of the mobile device, the gas discharge direction is worn or The present invention provides a fire and explosion prevention device capable of further improving the safety of a hair work device, and a mobile device including the same by being installed in a direction away from a human body in a holding or holding condition or an operating condition.

The problem to be solved according to various embodiments of the present invention is to form a simple structure or part of the case of the mobile electronic device to be mounted on the mobile electronic device, which is a very small device that is worn, held or possessed by the human body, The present invention provides a ignition and explosion prevention device and a mobile electronic device including the same, which are operated by pressure and do not require any additional driving circuits or sensors, and can further improve the safety of the mobile electronic device.

The ignition and explosion prevention apparatus according to various embodiments of the present disclosure may be installed in an electronic device in which a battery cell is stored, and when the internal gas of the battery cell is discharged, the internal gas may be guided and discharged to the outside.

A mobile device according to various embodiments of the present disclosure includes a battery cell having a safety vent and an accommodating part for accommodating the battery cell, and when the safety vent is opened to discharge the internal gas of the battery cell, guide the internal gas. It may include a case of an electronic device having a ignition and explosion-proof device to emit to the outside.

The fire and explosion prevention device may include a device vent formed relatively thinly in a case of the electronic device.

The ignition and explosion prevention device may include a flow path formed between the housing and the case of the electronic device, and a displacement valve formed in the flow path to block and open the flow path.

The displacement valve may include an inner pad located inside the case of the electronic device, a connection bar extending from the inner pad and extending through the flow path, and an external pad connected to the connection bar and positioned outside the case of the electronic device. It may include.

The apparatus may further include a sealing ring interposed between the inner pad and the case of the electronic device or between the outer pad and the case of the electronic device.

The apparatus may further include a spring coupled to a connection bar between the inner pad and the case of the electronic device or between the outer pad and the case of the electronic device.

The ignition and explosion prevention device may include a flow path formed between the housing and the case of the electronic device, and an elastic valve formed in the flow path to open and close the flow path.

The elastic valve may include a fixing pad formed on the electronic device case outside the flow path; It may further include a closing pad interposed between the outside of the flow path and the fixing pad, a connecting bar extending from the closing pad toward the fixing pad, and a spring coupled to the connecting bar between the closing pad and the fixing pad. .

The fire and explosion prevention device may further include a sealing ring interposed between the closure pad and the case of the electronic device.

The case of the electronic device includes a first passage formed between the housing and the ignition and explosion prevention device, a receptacle connected to the first passage to receive the ignition and explosion prevention device, and the housing and the electronic device. It may include a second flow path formed between the outer wall of the case.

The ignition and explosion prevention device includes a first housing having a first through hole connected to the first passage, a second housing having a second through hole coupled to the first housing and connected to the second passage; It may include a closing pad installed inside the first housing to block the first through hole and a spring provided between the closing pad and the second housing.

The ignition and explosion prevention device may further include a sealing ring installed between the closure pad and the first housing.

The ignition and explosion prevention device may include a flow path formed between the housing and the case of the electronic device.

The fire and explosion prevention device may further include a vent or a valve formed at the beginning, during or at the end of the flow path.

The flow path may be a combination of earphone terminals.

The flow path may be formed of a hollow member.

The ignition and explosion prevention device may be installed in a direction that does not face the human body under wearing, gripping, possession, or operation conditions of the electronic device.

The fire and explosion prevention device may be installed in a direction away from the human body under the conditions of wearing, gripping, possession, or operation of the electronic device.

The ignition and explosion prevention device may be displayed on the surface of the electronic device case as a letter, a picture or a symbol so that the user can recognize it.

The housing may be sealed with a pouch or can.

The electronic device may include a smartphone, a tablet personal computer, a mobile phone, an e-book reader, a laptop personal computer, a netbook computer, Personal digital assistant (PDA), portable multimedia player (PMP), MP3 player, mobile medical device, camera, finger, wrist, ankle, neck or eye wearable device, head-mounted-device (HMD) )), Bluetooth earphones or headsets, textiles or clothing all-in-one electronic garments, body pads or tattoos, vacuum cleaners, digital door lock devices, remote controls, handheld game consoles, electronic dictionaries, electronic keys, camcorders, electronics At least one of a picture frame, a portable medical measuring device, a navigation device, an industrial or home robot, and a portable measuring device.

According to various embodiments of the present disclosure, a mobile device includes a battery cell having a safety vent, an electronic device accommodating the battery cell, and the battery cell and the electronic device, wherein the safety vent is opened to open the battery cell. When the internal gas is discharged, it may include a fire and explosion prevention device for guiding the internal gas to release to the outside of the electronic device.

According to various embodiments of the present disclosure, an apparatus for preventing fire and explosion and a mobile device including the same include a gas discharged by a safety vent of a battery when a thermal runaway of the battery is started, and a specific portion of the mobile device case by the discharge pressure of the gas. It can be released so that the mobile device case does not rupture, ignite or explode.

According to various embodiments of the present disclosure, an apparatus for preventing fire and explosion and a mobile device including the same may be used to explode the explosion resulting from rupture of a weak part of the mobile device case after the discharge pressure of the combustible gas of the battery reaches a predetermined relatively high pressure. The gas release means allows gas to be released without rupture or deformation of the mobile device and to block the inflow of air out of the three components of combustion or to maintain the sub-combustion concentration prior to combustion.

According to various embodiments of the present disclosure, an apparatus for preventing ignition and explosion and a mobile device including the same prevent the bursting of the mobile device case at a high pressure by adjusting the discharge pressure of the gas release means to a condition below the rupture of the mobile device case. Explosion protection) to minimize human injury to the user of the hair device.

According to various embodiments of the present disclosure, an apparatus for preventing ignition and explosion and a mobile device including the same may block the inflow of air by preventing the inlet of the gas after the gas is released from the gas release means, thereby preventing asphyxiation (ignition prevention), Accordingly, it is possible to prevent ignition and subsequent secondary fires.

The ignition and explosion prevention device and the mobile device including the same according to various embodiments of the present invention, the position of the gas outlet is installed in a direction that does not face the human body in the wearing or gripping or possession or operation conditions of the mobile device, the gas discharge Orientation may further enhance the safety of the hair-working device by being installed in a direction away from the human body in the wearing or gripping or possession or operation conditions of the mobile device.

The ignition and explosion prevention apparatus according to various embodiments of the present disclosure may have a dustproof waterproof function and thus may not reduce the dustproof waterproof performance of the mobile electronic device having a small size and dustproof waterproof function.

1A and 1B are partial perspective views and cross-sectional views illustrating a mobile device before operation of an apparatus for preventing ignition and explosion according to various embodiments of the present disclosure.
2A and 2B are partial perspective views and cross-sectional views illustrating a mobile device after an operation of an ignition and explosion prevention apparatus according to various embodiments of the present disclosure.
3 is a partial cross-sectional view illustrating a mobile device before operation of a device for preventing fire and explosion according to various embodiments of the present disclosure.
4A and 4B are partial perspective views illustrating a mobile device before and after an operation of an ignition and explosion prevention apparatus according to various embodiments of the present disclosure.
5A and 5B are partial perspective views and cross-sectional views illustrating a mobile device before operation of an apparatus for preventing fire and explosion according to various embodiments of the present disclosure.
6A and 6B are partial perspective views and cross-sectional views illustrating a mobile device after an operation of an ignition and explosion prevention apparatus according to various embodiments of the present disclosure.
7A and 7B are partial cross-sectional views illustrating a mobile device before and after the operation of an ignition and explosion prevention apparatus according to various embodiments of the present disclosure.
8A and 8B are partial cross-sectional views illustrating mobile devices before and after the operation of the ignition and explosion prevention apparatus according to various embodiments of the present disclosure.
9A and 9B are front and rear perspective views illustrating a mobile device including an ignition and explosion prevention apparatus according to various embodiments of the present disclosure.
10A and 10B are perspective views illustrating a state in which a rear cover is removed from a mobile device including a fire and explosion protection device according to various embodiments of the present disclosure.
11A to 11C are perspective views illustrating a state in which a rear cover is removed from a mobile device including an ignition and explosion prevention apparatus according to various embodiments of the present disclosure.
12A to 12C are perspective views illustrating a ignition and explosion prevention apparatus according to various embodiments of the present disclosure.
13A to 13F are partially exploded perspective views illustrating a ignition and explosion prevention apparatus according to various embodiments of the present disclosure.
14A to 14C are cross-sectional views illustrating a ignition and explosion prevention apparatus according to various embodiments of the present disclosure.
15A to 15I are photographs illustrating a state of use of a mobile device including a device for preventing ignition and explosion according to various embodiments of the present disclosure.
16A to 16F are schematic views illustrating an operating state of a mobile device including a device for preventing ignition and explosion, according to various embodiments of the present disclosure.

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

The embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art, and the following examples can be modified in various other forms, and the scope of the present invention is It is not limited to an Example. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the inventive concept to those skilled in the art.

In addition, in the following drawings, the thickness or size of each layer is exaggerated for convenience and clarity of description, the same reference numerals in the drawings refer to the same elements. As used herein, the term "and / or" may include any and all combinations of one or more of the listed items. In addition, the term "may be connected" in the present specification is not only when the A member and the B member is directly connected, but also when the A member and the B member is indirectly connected by interposing the C member between the A member and the B member. it means.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. Also, as used herein, “comprise, include” and / or “comprising, including” refer to shapes, numbers, steps, operations, members, elements, and / or these mentioned. It is intended to specify the presence of a group and not to exclude the presence or addition of one or more other shapes, numbers, operations, members, elements and / or groups.

Although the terms first, second, etc. are used herein to describe various members, parts, regions, layers, and / or parts, these members, parts, regions, layers, and / or parts are defined by these terms. It is obvious that not. These terms may only be used to distinguish one member, part, region, layer or portion from another region, layer or portion. Accordingly, the first member, part, region, layer or portion, which will be described below, may refer to the second member, component, region, layer or portion without departing from the teachings of the present invention.

Terms relating to spaces such as "beneath", "below", "lower", "above", and "upper" are associated with one element or feature shown in the figures. It can be used for easy understanding of other elements or features. Terms related to this space are for easy understanding of the present invention according to various process conditions or use conditions of the present invention, and are not intended to limit the present invention. For example, if an element or feature in the figures is inverted, the element or feature described as "bottom" or "bottom" may be "top" or "top". Thus, "below" is a concept encompassing "top" or "bottom".

In addition, the mobile device described in this specification is, for example, but not limited to, a smartphone, a tablet personal computer, a mobile phone, an e-book reader, Notebook personal computer (Laptop personal computer), netbook computer (personal digital assistant), personal digital assistant (PDA), portable multimedia player (PMP), MP3 player, mobile medical device, camera, various wearable devices (such as accessory type) Watches, rings, bracelets, anklets, necklaces, eyeglasses, contact lenses) or head-mounted-devices (HMD), Bluetooth earphones / headsets, textile or apparel integrated devices (e.g. electronic clothing), body attachments Type devices (e.g. skin pads or tattoos), vacuum cleaners, digital door lock devices, remote controls, handheld game machines, electronic dictionaries, electronic keys, camcorders, electronic photo frames, various portable medical measuring devices (e.g. blood glucose meters) Heart rate monitor Is a concept including a periodic, or body temperature measuring devices etc.), navigation (navigation), industrial or household robots, and at least one of the portable measuring device, where the mobile device is in some cases may also be referred to as an electronic apparatus.

Moreover, in various embodiments of the present disclosure, the mobile device may be a combination of one or more of the aforementioned various devices. In addition, the mobile device according to various embodiments of the present disclosure is not limited to the above-described devices, and may include a new electronic device according to technology development.

First, an apparatus for preventing ignition and explosion according to various embodiments of the present disclosure will be described.

Electronic devices are generally not sealed to facilitate heat dissipation from the inside and are not dustproof. In contrast, mobile electronic devices tend to be generally sealed and dustproof as the user's environment is diversified. Moreover, in recent years, mobile electronic devices have a tendency to be further strengthened even when the capacity of the explosive battery mounted therein is increased. Since mobile electronic devices increase the possibility of explosion or / and ignition caused by rupture of the battery, there is a need for gas release means or fire extinguishing means to prevent explosion or ignition upon battery rupture. As mobile electronic devices tend to be thinner continuously, gas discharge means or fire extinguishing means are also required to have dustproof waterproofing. The ignition and explosion prevention apparatuses according to various embodiments of the present disclosure may be mounted on a small mobile electronic device and have a dustproof and waterproof function. The ignition and explosion protection devices of the present invention may be provided with a gas release means which is operated at a predetermined operating pressure to discharge the gas to the outside of the mobile electronic device. The gas release means can be operated when the internal pressure generated in the internal space of the mobile electronic device on which the battery is mounted reaches the operating pressure. The mobile electronic device may raise the internal space of the mobile electronic device in which the battery is mounted by the gas discharged from the battery. When the gas discharge means reaches the operating pressure, the gas discharged from the battery is quickly discharged to the outside of the mobile electronic device by the discharge pressure of the gas, so that the case of the mobile electronic device bursts or the mobile electronic device ignites or explodes. You can prevent it. The gas discharge means can be formed in various structures described below.

In addition, the fire and explosion prevention apparatus according to various embodiments of the present invention may further include a fire extinguishing means having a fire extinguishing function. The fire extinguishing means operates at the time of rupture or ignition of the battery, and can prevent or quickly extinguish ignition generated in the internal space of the mobile electronic device in which the battery is mounted. The extinguishing means may operate when the temperature of the internal space of the mobile electronic apparatus in which the battery is mounted reaches a predetermined operating temperature when the battery is ignited or the battery is overheated. The fire extinguishing means may be operated at an operating temperature to extinguish the battery or the internal space of the mobile electronic device so that the mobile electronic device does not ignite or explode. The extinguishing means may be formed in the form of a label, a sticker or a capsule. When the extinguishing means is formed in the form of a label or sticker, the extinguishing agent is filled in the inside of the label or sticker, and at least a part of the outer surface may be formed to include an open area shielded by a film that is melted at an operating temperature. The open area may be formed from fire extinguishing vents of less strength than other areas. When the extinguishing means is formed in the form of a capsule, the extinguishing agent is filled in the inside of the capsule, and the outside may be formed as a capsule film which is melted at an operating temperature. The label, sticker or capsule may be formed of a material having flame retardant properties. For example, it may be formed from a label, a sticker or a polyethylene, polypropylene, polyurethane or fluorine-based polymer.

The extinguishing agent may be composed of a material having a function of removing one or more of the three elements of ignition, and may be an extinguishing inhibitor, a extinguishing agent, or a flame retardant material. The extinguishing agent can be, for example, an inert gas or an inert gas mixture. The inert gas can be carbon dioxide, argon gas or nitrogen gas. The extinguishing agent may be a compound including at least one or two or more materials selected from alkalis, acids, carbon compounds, carbonate compounds, nitrogen compounds, and surfactants. More specifically, the fire extinguishing agent may be a fire extinguishing agent mainly containing potassium bicarbonate, a reaction product of potassium bicarbonate and urea, sodium bicarbonate, ammonium dihydrogen phosphate or ammonia. The flame retardant material may be a halogen flame retardant material, phosphorus flame retardant material, inorganic compound flame retardant. More specifically, halogen-based flame retardant materials include tribromo phenoxyethane, tetra bromo bisphenol-A (TBBA), octabromo diphenylether (OBDPE), brominated epoxy, brominated polycarbonate oligomo, chlorinated paraffin, chlorinated polyethylene, It may include an alicyclic chlorine-based flame retardant material. Phosphorus-based flame retardants may include phosphorus, phosphates such as ammonium phosphate, phosphine oxide, phosphine oxide diols, phosphites, phosphonates, triaryl phosphate, alkyldiaryl phosphate, trialkyl phosphate or resorcinaol bisdiphenyl phosphate (RDP). The inorganic compound flame retardant may include aluminum hydroxide, magnesium hydroxide, antimony oxide, tin hydroxide, tin oxide, molybdenum oxide, zirconium compound, borate or calcium salt. In addition, the flame retardant material may comprise a halon component. Halon is a carbon compound gas of halogen element (fluorine (fluorine), chlorine, bromine vapor). By blocking the oxidation reaction of the combustion product by the cocatalyst of halogen element, it prevents the access of oxygen and prevents combustion. Halon can be Halon-1211 (Halon-1211: CF2BrCl).

The fire extinguishing means is located in the internal space of the mobile electronic device in which the battery is mounted, and when the internal space reaches the operating temperature, the extinguishing agent may be supplied to the internal space to extinguish the flame. The fire extinguishing means, when formed in the form of a label or a sticker, may be attached to a side opposite to the safety vent of the battery in the internal space in which the battery is mounted. Thus, the extinguishing means can efficiently extinguish the flame generated through the safety vent of the battery. Further, the extinguishing means may be formed adjacent to the gas discharging means. Thus, the extinguishing means can extinguish the generated flame before it goes out of the mobile electronic device.

1A and 1B are partial perspective views and cross-sectional views illustrating a mobile device 900 before operation of the ignition and explosion prevention apparatus 100 according to various embodiments of the present disclosure. 2A and 2B are partial perspective views and cross-sectional views illustrating the mobile device 900 after the operation of the ignition and explosion prevention apparatus 100 according to various embodiments of the present disclosure.

First, as illustrated in FIGS. 1A and 1B, the fire and explosion prevention apparatus 100 according to various embodiments of the present disclosure may be formed on one side of the mobile device 900. For example, but not limited to, the fire and explosion prevention apparatus 100 may be formed as a ring-shaped groove 110 in the short side region of the case 910 of the mobile device 900. Such groove 110 may be referred to as a device vent in some cases. Of course, the fire and explosion protection device 100 is not only a circular ring shape, but also a triangular ring, a triangular ring, a pentagonal ring, a hexagonal ring, etc., a plurality of straight lines, a plurality of straight lines, and a plurality of straight lines. It may be variously implemented.

Here, although not shown, the fire and explosion protection device 100 is formed at an opposite or opposite position corresponding to a safety vent formed in the battery cell (in some cases, the battery cell may be referred to as a battery). As a result, the internal gas released during the safety vent operation of the battery cell may immediately affect the ignition and explosion prevention apparatus 100, such that the ignition and explosion prevention apparatus 100 may be quickly operated. The positional relationship between the safety vent of this battery cell and the fire and explosion protection device 100 can be applied in all embodiments of the present invention.

Next, as illustrated in FIGS. 2A and 2B, the fire and explosion prevention apparatus 100 according to various embodiments of the present disclosure may include a battery cell stored inside the mobile device 900 through a safety vent. When the gas is discharged, the gas may be torn, removed, or separated by the gas discharge pressure, thereby allowing the internal gas of the battery cell to be quickly released to the outside. That is, as an unexpected area of the mobile device 900 is ruptured, the internal gas of the battery cell is not discharged to the outside, but the fire and explosion prevention device 100 previously formed or installed in the mobile device 900. Only the gas inside the battery cell can be safely released to the outside. Accordingly, ignition or explosion of the mobile device 900 may be prevented, and user human safety of the mobile device 900 may be improved. Of course, after the operation of the ignition and explosion prevention apparatus 100, a through hole may be further formed or blocked again in the case 910 of the mobile device 900.

3 is a partial cross-sectional view illustrating a mobile device 900 before operation of the fire and explosion prevention apparatus 200 according to various embodiments of the present disclosure.

As illustrated in FIG. 3, the fire and explosion prevention apparatus 200 may be implemented by a region 210 having a relatively thin region formed in a case 910 of the mobile device 900. This relatively thin area 210 may be referred to as an instrument vent.

That is, the ignition and explosion prevention apparatus 200 may not be formed in a ring-shaped recess, but the entire predetermined region may be formed relatively thinly compared to the surroundings thereof. When the internal gas of the battery cell 915 is released, the ignition and explosion prevention device 200 also tears or ruptures due to the gas pressure, thereby guiding the internal gas of the battery cell 915 to the outside so as to be quickly released.

4A and 4B are partial perspective views illustrating a mobile device 900 before and after the operation of the ignition and explosion prevention apparatus 300 according to various embodiments of the present disclosure.

As illustrated in FIGS. 4A and 4B, the fire and explosion prevention apparatus 300 according to various embodiments of the present disclosure may include a flow path 911 and a flow path 911 formed in a case 910 of the mobile device 900. It may include a shielding pad 310 to close or open.

Here, the flow path 911 and the shielding pad 310 may be formed in the accommodating part 912 formed in the mobile device 900. That is, the receiving portion 912 is indented inwardly relative to the outer surface of the mobile device 900, the flow path having a width or diameter smaller than the width or diameter of the receiving portion 912 in the receiving portion 912 911 is formed, and the shielding pad 310 may be weakly adhered to the receiving portion 912 to block the flow path 911. In addition, the shielding pad 310 has a thickness that is less than or equal to the depth of the receiving portion 912, so that the shielding pad 310 protrudes out of the mobile device 900 to be damaged by hitting an external object. have. For example, but not limited to, the receiving portion 912 may be formed in a quadrangular or circular shape in the plane, and the shielding pad 310 may also be formed in a quadrangular or circular shape in the plane. Here, the relationship between the receiving portion 912 and the shielding pad 310 of the mobile device 900 described above may be equally applied to all embodiments of the present invention.

The shielding pad 310 is relatively weakly adhered to the receiving portion 912 around the flow path 911 of the mobile device 900, so that when the safety vent of the battery cell operates and the internal gas is discharged, the pressure of the internal gas is released. As a result, the shielding pad 310 may be discharged to the outside while the shielding pad 310 is separated or separated from the mobile case 910. Here, the adhesion of the shielding pad 310 to the mobile device 900 may be set to such an extent that the shielding pad 310 may be separated or moved away from the mobile device 900 by the pressure of the internal gas. The bonding between the shielding pad 310 and the mobile device 900 may be made by a separate adhesive, or a portion of the shielding pad 310 may be melted and cured.

The shielding pad 310 may be formed of the same material as the mobile case 910 or may be formed of a different material. For example, but not limited to, the shielding pad 310 may be made of polyethylene (PE), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), polyethylene terephthalate (PET), melamine resin, or phenol resin. Or the like. The material of the shielding pad 310 may be equally applied to the ignition and explosion prevention apparatuses 100 to 600 described in all embodiments of the present invention.

5A and 5B are partial perspective views and cross-sectional views illustrating a mobile device 900 before operation of the fire and explosion prevention apparatus 400 according to various embodiments of the present disclosure. 6A and 6B are partial perspective views and cross-sectional views illustrating the mobile device 900 after the operation of the fire and explosion prevention apparatus 400 according to various embodiments of the present disclosure.

The ignition and explosion prevention apparatus 400 according to various embodiments of the present disclosure may include a displacement valve 410 coupled to the flow path 911 formed in the case 910 of the mobile device 900.

Here, the flow path 911 is formed in the receiving portion 912 formed in the recess 910 of the mobile device 900, the displacement valve 410 is coupled to the flow path 911. In particular, the flow path 911 is connected to the accommodating part for accommodating the battery cell, and serves to guide the gas generated from the battery cell to the outside. The displacement valve 410 is coupled to the flow path 911 to normally block the flow path 911, and when the gas inside the battery cell is discharged, the flow valve 911 is opened by the gas pressure.

In addition, the fire and explosion prevention device 400 may further include a fixing bar 411 coplanar with the outer wall of the mobile case 910, the fixing bar 411 is the displacement valve 410 to the outside Can not escape / escape. Of course, even if there is no such fixing bar 411, due to the structural features of the displacement valve 410, that is, due to the shape of the displacement valve 410 is caught in the flow path 911 is not separated to the outside of the case 910 Do not.

On the other hand, the displacement valve 410 is an inner pad 412 located inside the case 910 of the mobile device 900, and a connecting bar 413 extending from the inner pad 412 to extend through the flow path 911. And an external pad 414 connected to the connection bar 413 and positioned outside the case 910 of the mobile device 900.

In addition, the fire and explosion protection device 400 may further include a sealing ring 415 installed between the external pad 414 and the case 910 of the mobile device 900. Of course, the sealing ring 415 may be installed between the inner pad 412 and the case 910 of the mobile device 900. Such a sealing ring 415 may be implemented with, for example, but not limited to, a gasket, a packing, a liquid sealing member, and the like, which is the same for all ignition and explosion protection devices described in various embodiments of the present invention. Can be applied.

By such a configuration, when the safety vent of the battery cell is operated and the internal gas is discharged to the outside, the fire and explosion protection device 400 according to the embodiment of the present invention, the case 910, that is, the flow path of the mobile device 900 As the displacement valve 410 installed at 911 is pushed to the outside, the internal gas may be discharged to the outside of the case 910 of the mobile device 900. Therefore, since the mobile device 900 does not explode or ignite, the safety of the mobile device 900 may be improved.

7A and 7B are partial cross-sectional views illustrating a mobile device 900 before and after the operation of the fire and explosion prevention apparatus 400A according to various embodiments of the present disclosure.

As shown in FIGS. 7A and 7B, the fire and explosion prevention apparatus 400A according to various embodiments of the present invention may include a spring 416 installed between the inner pad 412 and the case 910 of the mobile device 900. ) May be further included.

Here, the spring 416 may be, for example, but not limited to, a coil spring, a leaf spring, a dish spring, or the like. This spring 416 may actually have a form coupled to the connecting bar 413. Of course, the spring 416 may be coupled between the external pad 414 and the case 910 of the mobile device 900, that is, the connection bar 413.

In this manner, when the safety vent of the battery cell is operated and the internal gas is discharged, the displacement valve or the elastic valve 410 is operated while the spring 416 is compressed by the gas pressure of the internal gas to operate the mobile device 900. Gas inside the case 910 may be discharged to the outside. Of course, when the pressure of the internal gas is less than the restoring force of the spring 416, the displacement valve or the elastic valve 410 is returned to its original position, blocking the flow path 911, the outside air, moisture, dust, etc. Do not flow into the interior of the (910). Therefore, fire or explosion of the battery cell can be prevented.

8A and 8B are partial cross-sectional views illustrating a mobile device 900 before and after operation of the fire and explosion prevention apparatus 500 according to various embodiments of the present disclosure.

8A and 8B, the ignition and explosion prevention apparatus 500 according to various embodiments of the present invention is coupled to the flow path 911 formed in the case 910 of the mobile device 900 and flow path 911. ) May include an elastic valve 510 that opens and then closes. Here, the fire and explosion prevention apparatus 500 according to various embodiments of the present invention may further include a sealing ring 515 installed between the elastic valve 510 and the case 910 of the mobile device 900.

In particular, the elastic valve 510 is a fixing bar 511 formed on the case 910 of the mobile device 900 outside the flow path 911 and a closing pad interposed between the outside of the flow path 911 and the fixing bar 511. 512, a connecting bar 513 extending from the closing pad 512 toward the fixing bar 511, and a spring coupled to the connecting bar 513 between the closing pad 510 and the fixing bar 511. 516).

Therefore, when the safety vent of the battery cell is operated to discharge the internal gas of the battery cell 915, the closing pad 512 is moved toward the fixing bar 511 while the spring 516 is compressed by the internal gas pressure. Accordingly, the internal gas of the battery cell 915 may be discharged to the outside of the case 910 of the mobile device 900. In addition, when the pressure of the gas discharged from the battery cell 915 is less than the restoring force of the spring 516, the closing pad 512 blocks the flow path 911 again by the restoring force of the spring 516, and thus oxygen By the inflow of moisture and / or dust, ignition and explosion can be prevented. That is, since oxygen, moisture, and / or dust do not enter the inside of the housing part in which the battery cells are stored or the case 910 of the mobile device 900, ignition or explosion may be prevented.

In other words, the closing pad 512 completely blocks the flow path 911 formed in the case 910 of the mobile device 900 by the elastic force of the spring 516 so that the mobile device 900 is waterproof and / or dustproof. In the safety vent operation of the battery cell, the spring 516 is compressed by the internal gas pressure to quickly discharge the internal gas generated from the battery cell inside the case 910 of the mobile device 900 to the outside. When the gas pressure decreases, and the gas pressure decreases, the closing pad 512 blocks the flow path 911 by the restoring force of the spring 516, so that asphyxiation digestion occurs.

9A and 9B are front and rear perspective views illustrating a mobile device 900 including fire and explosion protection devices 100 to 600 according to various embodiments of the present disclosure. 10A and 10B are perspective views illustrating a state in which the rear cover 914 is removed from the mobile device 900 including the ignition and explosion prevention apparatus 600 according to various embodiments of the present disclosure.

9A and 9B, the mobile device 900 including the ignition and explosion prevention apparatuses 100 to 600 according to various embodiments of the present disclosure may be, for example, a smartphone. The mobile device 900 may be provided with a display unit 913 on the front surface and a rear cover 914 on the rear surface. In addition, a charging terminal may be formed at a lower end of the mobile device 900, and an earphone terminal may be further provided at one side thereof.

In addition, as illustrated in FIGS. 10A and 10B, the mobile device 900 including the fire and explosion protection device 600 according to various embodiments of the present disclosure may include a battery cell 915 inside the rear cover 914. ) May be provided with an accommodating part 916. The battery cell 915 supplies power to the mobile device 900 and may be charged through a charging terminal.

Meanwhile, a separate fire and explosion prevention device 600 may be installed between one side of the battery cell 915, that is, the housing 916 and the outer wall of the case 910 of the mobile device 900. That is, in various embodiments of the present disclosure, the fire and explosion prevention apparatus 600 may be separately provided and mounted on the mobile device 900.

11A to 11C are perspective views illustrating a state in which a rear cover 914 is removed from a mobile device 900 including an ignition and explosion prevention device 600 according to various embodiments of the present disclosure.

11A to 11C, the mobile device 900 including the fire and explosion protection device 600 according to various embodiments of the present disclosure may include a first flow path 917 formed in a case 910, and accommodated therein. A portion 918 and the second passage 919 may be included.

The first passage 917 may be formed between an accommodating part 916 accommodating the battery cell 915 and an accommodating part 918 accommodating the ignition and explosion prevention device 600. In addition, the accommodating part 918 may be installed between the first passage 917 and the second passage 919, and as described above, the fire and explosion prevention apparatus 600 may be coupled and fixed. The second flow path 919 may be formed between the receiving portion 918 and the outer wall of the case 910. In this case, since the second channel 919 may be provided in combination with the earphone terminal in some cases, it is not necessary to separately form the second channel 919.

Here, the case 910 of the mobile device 900 has disclosed a configuration consisting of an accommodating part 916, a first flow path 917, a receiving part 918, and a second flow path 919 of the battery cell 915. In addition to these configurations, various modifications are possible.

For example, the accommodating part 916 of the battery cell 915 may be in a form wrapped with a pouch or a can. In addition, the first passage 917, the receiving portion 918, and the second passage 919 may be in the form of one tube or duct having the same diameter. In addition, the first passage 917, the receiving portion 918, and the second passage 919 may be coupled to the case 910 of the mobile device 900 by a separate hollow member. In addition, when one flow path 911 is formed between the accommodating part 916 of the battery cell 915 and the outer wall of the case 910, the ignition and explosion prevention device, the groove, the device vent, or the device valve is the flow path 911. It can be formed at the beginning, during or at the end.

12A to 12C are perspective views illustrating an apparatus for preventing ignition and explosion 600 according to various embodiments of the present disclosure. 13A to 13F are partially exploded perspective views illustrating an apparatus for preventing ignition and explosion 600 according to various embodiments of the present disclosure. Furthermore, FIGS. 14A-14C are cross-sectional views illustrating a fire and explosion prevention apparatus 600 according to various embodiments of the present disclosure.

First, as illustrated in FIGS. 12A to 12C, the fire and explosion prevention apparatus 600 according to various embodiments of the present invention may include a first housing 610 having one first through hole 611, and The second housing 620 may be coupled to the first housing 610 and have two second through holes 622.

Here, the first through hole 611 of the first housing 610 is connected / coupled to the first passage 917 provided in the case 910, and also the second through hole 622 of the second housing 620 ) May be connected / coupled with the second flow path 919 provided in the case 910, and the first and second housings 910 and 920 coupled to each other may be coupled to the accommodation part 918 of the case 910.

13A to 13F and 14A to 14C, the fire and explosion prevention apparatus 600 according to various embodiments of the present disclosure may include a closing pad 630, a connection bar 631, and a spring. 640 and the sealing ring 650 may be further included.

The closing pad 630 is installed inside the first housing 610 to basically block the first through hole 611. The connecting bar 631 extends a predetermined length from the closing pad 630 toward the second housing 620. The spring 640 is in close contact with the closing pad 630 in the state coupled to the connecting bar 631, and the other end is in close contact with the second housing 620, so that the closing pad 630 is basically the first housing 610. Block the first through hole 611). In addition, the sealing ring 650 is installed between the closing pad 630 and the second housing 620 so that external moisture or dust does not flow into the housing 916 of the battery cell 915.

By such a configuration, the internal short circuit of the battery cell 915 included in the housing 916 of the case 910 or the nail penetration, crushing, overcharge, overdischarge, overcurrent or temperature transient rise of the battery cell 915, etc. When the safety vent is operated and the internal gas is discharged for the reason of this, the closing pad 630 installed inside the first and second housings 910 and 920 compresses the spring 640 by the pressure of the internal gas. It may be moved toward the housing 620. Then, the internal gas discharged from the battery cell 915 passes through the first through hole 611 of the first housing 610, the inner space of the first and second housings 910 and 920, and the second through the second housing 620. Through the hole 622, it can be quickly released to the outside of the case 910. In addition, when the pressure of the internal gas is less than the restoring force of the spring 640, the shielding pad 310 may block the first through hole 611 of the first housing 610 again by the restoring force of the spring 640. have. Therefore, the supply of air or oxygen to the inside of the case 910 is blocked, and thus, the ignition and explosion of the case 910 can be suppressed.

Meanwhile, the fire and explosion prevention apparatuses 100 to 600 according to various embodiments of the present disclosure may be displayed in various letters, pictures, and / or symbols so that a user may recognize the surface of the case 910 in the mobile device 900. Can be. In addition, the structure and operation of the ignition and explosion prevention apparatuses 100 to 600 are also described in the device manual, so that a user may recognize that the functions of the ignition and explosion prevention apparatus 600 are applied to the mobile device 900. have.

In addition, the fire and explosion prevention apparatus 100 to 600 according to various embodiments of the present invention are installed in a direction that does not face the user's body under the conditions of wearing, gripping, holding and / or operating the mobile device 900 by the user. desirable. In other words, the fire and explosion prevention apparatuses 100 to 600 according to various embodiments of the present disclosure are installed in a direction away from the human body under the conditions of wearing, gripping, possession and / or manipulation of the mobile device 900 by the user. desirable.

15A to 15I are photographs illustrating a state of use of a mobile device including a device for preventing ignition and explosion according to various embodiments of the present disclosure.

As shown in FIG. 15A, the device for preventing ignition and explosion in a smartphone may be installed at various positions, but preferably, may be installed to avoid an area that may give an image to a user's hand. In addition, as illustrated in FIG. 15B, in the case of a smart watch, the ignition and explosion prevention device may be installed by avoiding an area that may cause an image on a user's wrist or the like. In addition, as illustrated in FIGS. 15C and 15D, in the case of a smart ring, the device for preventing ignition and explosion may be installed by avoiding an area where a user's finger may be burned. In addition, as illustrated in FIG. 15E, the notebook also avoids an area that may burn the user's face, hand, or the like, and prevents fire and explosion at a location where gas may be released toward the rear of the notebook, for example. The device can be installed. In addition, as illustrated in FIGS. 15F and 15G, the ignition and explosion prevention apparatus may be installed at a position where the face of the user may not be burned even in the smart glasses or the like. In addition, as shown in FIG. 15H, the VR device may be provided with an ignition and explosion prevention device in an area where gas may be emitted in a direction away from the user's face. Lastly, as shown in FIG. 15I, the device for ignition and explosion may be installed in the Bluetooth earphone in an area where gas is emitted in a direction away from the user's neck.

16A to 16F are schematic views illustrating an operating state of a mobile device including a device for preventing ignition and explosion, according to various embodiments of the present disclosure.

As illustrated in FIGS. 16A to 16F, battery cells may be accommodated in a mobile device, and various types of fire and explosion prevention devices such as flow paths, vents, and valves may be installed on one side of the electronic device, and these may be batteries. When the safety vent of the cell is operated and the internal gas is released, it is quickly guided to the outside of the mobile device and released, thereby reducing the risk of the human body or the surroundings caused by the fire or explosion of the mobile device. Here, but not limited to, the battery cells are formed in the safety vents and the electronic devices, such as flow paths, vents, and valves, the fire and explosion protection devices are formed in the corresponding, opposite or opposite position, so that the gas inside the battery cells can be quickly It is desirable to be released to the outside.

What has been described above is only one embodiment for implementing a device for preventing ignition and explosion according to the present invention and a mobile device including the same, the present invention is not limited to the above-described embodiment, it is claimed in the claims As will be apparent to those skilled in the art to which the present invention pertains without departing from the gist of the present invention, the technical spirit of the present invention will be described to the extent that various modifications can be made.

100,200,300,400,500,600; Ignition and explosion protection
110; Groove 210; Appliance vent
310; Shielding pad 410; Displacement valve
411; Fixed bar 412; Inner pad
413; Connecting bar 414; Outer pad
415; Sealing ring 416; spring
510; Elastic valve 511; Fixed bar
512; Inner pad 513; Connecting bar
515; Sealing ring 516; spring
610; First housing 611; First through hole
620; Second housing 622; 2nd through hole
630; Closure pad 631; Connecting bar
640; Spring 650; Sealing ring
900; Mobile device 910; case
911; Euro 912; Receptacle
913; Display unit 914; Back cover
915; Battery cell 916; Storage
917; First euro 918; Receptacle
919; 2nd Euro

Claims (23)

The battery device is installed in the electronic device accommodated, when the internal gas of the battery cell is discharged, ignition and explosion prevention device, characterized in that for guiding the internal gas to release to the outside. A battery cell having a safety vent; And
An accommodating part for accommodating the battery cell is formed, and when the safety vent is opened and the internal gas of the battery cell is discharged, the electronic device includes a case of an electronic device having a ignition and explosion prevention device for guiding the internal gas and releasing it to the outside. Mobile device, characterized in that. The method of claim 2,
The device for preventing ignition and explosion includes a device vent formed relatively thinly in a case of the electronic device. The method of claim 2,
The fire and explosion prevention device
A flow path formed between the housing and the case of the electronic device; And
And a displacement valve formed in the flow path to close and open the flow path. The method of claim 4, wherein
The displacement valve is
An inner pad located inside the case of the electronic device;
A connection bar extending from the inner pad and extending through the flow path; And
And an external pad connected to the connection bar and positioned outside the case of the electronic device. The method of claim 5,
And a sealing ring interposed between the inner pad and the case of the electronic device or between the outer pad and the case of the electronic device. The method of claim 5,
And a spring coupled to a connection bar between the inner pad and the case of the electronic device or between the outer pad and the case of the electronic device. The method of claim 2,
The fire and explosion prevention device
A flow path formed between the housing and the case of the electronic device; And
And an elastic valve formed in the flow path to open and close the flow path. The method of claim 8,
The elastic valve
A fixing pad formed on the electronic device case outside the flow path;
A closing pad interposed between the outside of the flow path and the fixing pad;
A connection bar extending from the closure pad toward the fixing pad; And
And a spring coupled to the connecting bar between the closure pad and the fixing pad. The method of claim 9,
The ignition and explosion prevention device further comprises a sealing ring interposed between the closure pad and the case of the electronic device. The method of claim 2,
The case of the electronic device
A first flow path formed between the housing and the fire and explosion prevention device;
A receptacle connected to the first passage to receive the fire and explosion prevention device; And
And a second flow path formed between the housing and an outer wall of the case of the electronic device. The method of claim 11,
The fire and explosion prevention device
A first housing having a first through hole connected to the first channel;
A second housing having a second through hole coupled to the first housing and connected to the second flow path;
A closing pad installed inside the first housing to close the first through hole; And
And a spring installed between the closure pad and the second housing. The method of claim 12,
The fire and explosion prevention device comprises a sealing ring installed between the closure pad and the first housing. The method of claim 2,
The device for preventing ignition and explosion includes a flow path formed between the housing and the case of the electronic device. The method of claim 14,
The fire and explosion prevention device further comprises a vent or valve formed at the beginning, during or at the end of the flow path. The method of claim 14,
The flow path is a mobile device, characterized in that the combined use of earphone terminals. The method of claim 14,
The flow path is a mobile device, characterized in that formed of a hollow member. The method of claim 2,
The fire and explosion prevention device is a mobile device, characterized in that installed in a direction that does not face the human body under the conditions of wearing, gripping, possession or operation of the electronic device. The method of claim 2,
The fire and explosion prevention device is a mobile device, characterized in that installed in a direction away from the human body under the conditions of wearing, gripping, possession or operation of the electronic device. The method of claim 2,
The ignition and explosion prevention device is a mobile device, characterized in that displayed on the surface of the electronic device case by a character, a picture or a symbol so that the user can recognize. The method of claim 2,
And the receiving portion is sealed with a pouch or can. The method of claim 2,
The electronic device may include a smartphone, a tablet personal computer, a mobile phone, an e-book reader, a laptop personal computer, a netbook computer, Personal digital assistant (PDA), portable multimedia player (PMP), MP3 player, mobile medical device, camera, finger, wrist, ankle, neck or eye wearable device, head-mounted-device (HMD) )), Bluetooth earphones or headsets, textiles or clothing all-in-one electronic clothing, body pads or tattoos, vacuum cleaners, digital door lock devices, remote controls, handheld game consoles, electronic dictionaries, electronic keys, camcorders, electronics A mobile device comprising at least one of a picture frame, a portable medical measurement device, a navigation device, an industrial or home robot, and a portable measurement device. A battery cell having a safety vent;
An electronic device accommodating the battery cell; And
A fire and explosion prevention device installed between the battery cell and the electronic device and configured to guide the internal gas to the outside of the electronic device when the safety vent is opened to discharge the internal gas of the battery cell. Mobile device, characterized in that.

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