Smart tag

Abstract

This smart tag comprises: a printed circuit board assembly having a sound generator, a battery, and a plurality of electronic components installed on an upper surface thereof; a plurality of intermediate sheets stacked on the upper surface of the printed circuit board assembly and including first openings forming a resonance space which corresponds to the sound generator; an upper sheet covering the upper surface of the plurality of intermediate sheets; and a lower sheet covering the lower surface of the printed circuit board assembly.

Description

Smart Tag

[0001] The present disclosure relates to a card-shaped smart tag.

[0002] A smart tag is a device that can be used by users to find valuable items, such as keys or bags, or pets.

[0003] For example, if a smart tag is attached to a valuable item, when the user loses the valuable item, the user can easily find the location of the item with the smart tag attached using an item finding app installed on a mobile device such as a smartphone or tablet computer.

[0004] A smart tag according to one or more embodiments of the present disclosure may include: a printed circuit board assembly comprising a sound generator installed on one surface, a battery, and a plurality of electronic components; a plurality of intermediate sheets laminated on the upper surface of the printed circuit board assembly and comprising a first opening forming a resonance space corresponding to the sound generator; an upper sheet covering one surface of the plurality of intermediate sheets; and a lower sheet covering the other surface of the printed circuit board assembly.

[0005] According to one or more embodiments of the present disclosure, some of the plurality of intermediate sheets may further include a plurality of openings formed to accommodate the battery and the plurality of electronic components of the printed circuit board assembly.

[0006] According to one or more embodiments of the present disclosure, one of the plurality of intermediate sheets is formed to cover the battery of the printed circuit board assembly and may further include a second opening formed to accommodate the plurality of electronic components.

[0007] According to one or more embodiments of the present disclosure, the plurality of intermediate sheets may include a border formed in a rectangular shape corresponding to the edge of the printed circuit board assembly; and at least one main bar formed perpendicularly to two opposing sides of the border.

[0008] According to one or more embodiments of the present disclosure, the rim may include two long sides and two short sides facing each other. The at least one main bar may be formed perpendicular to the two long sides.

[0009] According to one or more embodiments of the present disclosure, the plurality of intermediate sheets may include: a border formed in a rectangular shape that corresponds to the edge of the printed circuit board assembly and surrounds the sound generator, the battery, and the plurality of electronic components; and two main bars that divide the internal space of the border into three openings in which the sound generator, the battery, and the plurality of electronic components of the printed circuit board assembly are installed.

[0010] According to one or more embodiments of the present disclosure, the plurality of intermediate sheets may further include at least one sub-bar connecting one of the two main bars and one side of the rim parallel to the main bar.

[0011] According to one or more embodiments of the present disclosure, the plurality of intermediate sheets may further include a plurality of support bars protruding toward the resonance space from the inner surface of the rim and the two main bars.

[0012] According to one or more embodiments of the present disclosure, the three openings of the plurality of intermediate sheets may include the first opening in which the sound generator is accommodated and the second opening in which the plurality of electronic components are accommodated.

[0013] According to one or more embodiments of the present disclosure, the plurality of intermediate sheets may include a first intermediate sheet, a second intermediate sheet, a third intermediate sheet, a fourth intermediate sheet, and a fifth intermediate sheet that are sequentially laminated on one surface of the printed circuit board assembly. The first intermediate sheet, the second intermediate sheet, and the third intermediate sheet may further include a third opening into which the battery is accommodated. The fourth intermediate sheet may further include a cover portion covering the upper portion of the third opening. The fifth intermediate sheet may further include an expansion opening corresponding to one surface of the cover portion.

[0014] According to one or more embodiments of the present disclosure, a portion of the expanded opening of the fifth intermediate sheet may protrude over the first opening of the fourth intermediate sheet so as to be in communication with the first opening of the fourth intermediate sheet.

[0015] According to one or more embodiments of the present disclosure, the printed circuit board assembly and the plurality of intermediate sheets may include a plurality of guide holes formed at a plurality of corners.

[0016] According to one or more embodiments of the present disclosure, the plurality of intermediate sheets may be formed from either a polymer sheet or a pre-preg.

[0017] According to one or more embodiments of the present disclosure, the thickness of the plurality of intermediate sheets may be 0.1 mm to 0.3 mm.

[0018] According to one or more embodiments of the present disclosure, the upper sheet may be formed to cover the entire upper portion of the plurality of intermediate sheets.

[0019] According to one or more embodiments of the present disclosure, the thickness of the smart tag may be 0.5 mm to 2.4 mm.

[0020] The above-described or other aspects, features, and benefits of embodiments of the present disclosure will become more apparent from the following description with reference to the accompanying drawings. In the accompanying drawings:

[0021] FIG. 1 is a perspective view showing a smart tag according to one or more embodiments of the present disclosure.

[0022] FIG. 2 is a perspective view showing a smart tag according to one or more embodiments of the present disclosure with the upper sheet removed.

[0023] FIG. 3 is an exploded perspective view showing a smart tag according to one or more embodiments of the present disclosure.

[0024] FIG. 4 is a cross-sectional view of a smart tag according to one or more embodiments of the present disclosure of FIG. 1, cut along line AA.

[0025] FIG. 5 is a cross-sectional view of a smart tag according to one or more embodiments of the present disclosure of FIG. 1, cut along the line BB.

[0026] FIG. 6a is a perspective view showing a printed circuit board assembly of a smart tag according to one or more embodiments of the present disclosure.

[0027] FIG. 6b is a perspective view showing the state in which a first intermediate sheet is attached to the upper surface of the printed circuit board assembly of FIG. 6a.

[0028] FIG. 6c is a perspective view showing a state in which a second intermediate sheet is laminated on the upper surface of the first intermediate sheet of FIG. 6b.

[0029] FIG. 6d is a perspective view showing a state in which a third intermediate sheet is laminated on the upper surface of the second intermediate sheet of FIG. 6c.

[0030] FIG. 6e is a perspective view showing the state in which a fourth intermediate sheet is laminated on the upper surface of the third intermediate sheet of FIG. 6d.

[0031] FIG. 6f is a perspective view showing the state in which a fifth intermediate sheet is laminated on the upper surface of the fourth intermediate sheet of FIG. 6e.

[0032] FIG. 7 is a perspective view showing a smart tag assembly according to one or more embodiments of the present disclosure including a margin portion.

[0033] FIG. 8 is a functional block diagram showing a smart tag according to one or more embodiments of the present disclosure.

[0034] FIG. 9 is a diagram showing a state in which a smart tag according to one or more embodiments of the present disclosure is used for an object finding function of a mobile device.

[0035] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or alternatives of said embodiments.

[0036] In relation to the description of the drawings, similar reference numerals may be used for similar or related components.

[0037] The singular form of the noun corresponding to the item may include one or multiple items, unless the relevant context clearly indicates otherwise.

[0038] In this document, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0039] The term "and / or" includes a combination of multiple related described components or any of the multiple related described components.

[0040] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish a component from another component and do not limit the components in other aspects (e.g., importance or order).

[0041] Where any (e.g., 1st) component is referred to as "coupled" or "connected" to another (e.g., 2nd) component, with or without the terms "functionally" or "communicationly," it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0042] Terms such as "include" or "have" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this document, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0043] When it is said that a component is "connected," "combined," "supported," or "in contact" with another component, this includes not only cases where the components are directly connected, combined, supported, or in contact, but also cases where they are indirectly connected, combined, supported, or in contact through a third component.

[0044] When it is said that a component is located "on" another component, this includes not only cases where one component is in contact with the other, but also cases where another component exists between the two components.

[0045] Additionally, terms such as 'front end', 'rear end', 'upper part', 'lower part', 'upper part', and 'lower part' used in this disclosure are defined based on the drawings, and the shape and location of each component are not limited by these terms.

[0046] The present disclosure aims to provide a smart tag capable of outputting sound, having a thin card shape such as a credit card or debit card.

[0047] Hereinafter, a smart tag (1) according to one or more embodiments of the present disclosure will be described with reference to the attached drawings.

[0048] FIG. 1 is a perspective view showing a smart tag (1) according to one or more embodiments of the present disclosure.

[0049] Referring to FIG. 1, a smart tag (1) according to one or more embodiments of the present disclosure may be formed in the shape of a card.

[0050] For example, the smart tag (1) can be formed into a roughly rectangular flat shape.

[0051] For example, the smart tag (1) can be formed with a size similar to or the same as various types of financial cards such as credit cards, debit cards, and transportation cards.

[0052] For example, if the smart tag (1) is formed as a financial card, a financial IC (integrated circuit) may be installed on the surface of the smart tag (1).

[0053] The smart tag (1) can be formed to have a thickness similar to that of a financial card. For example, the thickness of the smart tag (1) can be about 0.5 mm to 2.4 mm. As an example, the smart tag (1) can be formed to have a thickness of about 0.5 mm to 1.4 mm so that it can be stored in a wallet.

[0054] For example, the smart tag (1) can be formed to produce sound. To this end, a sound generator (12) (see FIG. 2) that emits sound can be installed inside the smart tag (1).

[0055] For example, the smart tag (1) can be formed to emit light. To this end, a light source (16) (see FIG. 2) can be installed inside the smart tag (1).

[0056] For example, the smart tag (1) can be formed to be wirelessly connected to a mobile device such as a smartphone, tablet computer, etc.

[0057] FIG. 2 is a perspective view showing a smart tag (1) according to one or more embodiments of the present disclosure with the upper sheet (31) removed. FIG. 3 is an exploded perspective view showing a smart tag (1) according to one or more embodiments of the present disclosure.

[0058] Referring to FIGS. 2 and FIGS. 3, a smart tag (1) according to one or more embodiments of the present disclosure may include a printed circuit board assembly (10) and a plurality of intermediate sheets (21, 22, 23, 24, 25).

[0059] A printed circuit board assembly (10) may be formed to include a sound generator (12), a battery, and a plurality of electronic components (15, 16, 17) installed on an upper surface. For example, the printed circuit board assembly (10) may include a printed circuit board (11), a sound generator (12), a battery, and a plurality of electronic components (15, 16, 17). The sound generator (12), the battery (13), and the plurality of electronic components (15, 16, 17) may be installed on the upper surface of the printed circuit board (11).

[0060] The sound generator (12) can be formed to generate sound. The sound generator (12) can be formed to generate various types of sound. For example, the sound generator (12) can be formed as a buzzer.

[0061] A cushioning member (121) may be installed on the upper surface of the sound generator (12). The cushioning member (121) may be installed between the sound generator (12) and the upper sheet (31) (see FIG. 3).

[0062] The battery (13) may be formed to supply power to the sound generator (12) and a plurality of electronic components (15, 16, 17). For example, the battery (13) may be formed as a rechargeable battery. For instance, the battery (13) may be formed to be charged wirelessly. In this case, the printed circuit board assembly (10) may include a charging unit for wirelessly charging the battery (13).

[0063] Multiple electronic components (15, 16, 17) may be provided to enable the smart tag (1) to perform various functions. Multiple electronic components (15, 16, 17) may be installed on a printed circuit board (11) to form an electronic circuit that enables the smart tag (1) to perform various functions.

[0064] For example, the printed circuit board assembly (10) may include a button (15). The button (15) may be formed to control the operation of the smart tag (1).

[0065] For example, the printed circuit board assembly (10) may include a light source (16). The light source (16) may be formed to emit light. For example, the light source (16) may be formed as a light-emitting diode (LED).

[0066] A plurality of intermediate sheets (21, 22, 23, 24, 25) are formed to form a space, i.e., a resonance space (40), in which sound generated by the sound generator (12) can resonate. For example, a resonance space can be formed by stacking a plurality of intermediate sheets (21, 22, 23, 24, 25) to a certain height.

[0067] A plurality of intermediate sheets (21, 22, 23, 24, 25) can be formed to form a space, i.e., a component space, in which a plurality of electronic components (15, 16, 17) can be accommodated. For example, a component space can be formed by stacking a plurality of intermediate sheets (21, 22, 23, 24, 25).

[0068] A plurality of intermediate sheets (21, 22, 23, 24, 25) can be formed to form a space in which a battery (13) can be accommodated, i.e., a battery space. For example, a battery space can be formed by stacking a plurality of intermediate sheets (21, 22, 23, 24, 25).

[0069] A plurality of intermediate sheets (21, 22, 23, 24, 25) may be stacked to have a height greater than that of the sound generator (12), battery (13), and a plurality of electronic components (15, 16, 17). For example, the sound generator (12), battery (13), and a plurality of electronic components (15, 16, 17) may not protrude above the upper surface of the plurality of intermediate sheets (21, 22, 23, 24, 25) on which they are stacked.

[0070] The intermediate sheet (21, 22, 23, 24, 25) may be formed in the shape of a thin sheet including a plurality of openings. For example, the intermediate sheet (21, 22, 23, 24, 25) may include a first opening (21b, 22b, 23b, 24b, 25b) forming a resonance space (40), a second opening (21c, 22c, 23c, 24c, 25c) forming a component space, and a third opening (21a, 22a, 23a, 25a) forming a battery space. As an example, the thickness of the intermediate sheet (21, 22, 23, 24, 25) may be 0.1mm to 0.3mm.

[0071] Some of the multiple intermediate sheets (21, 22, 23, 24, 25) may be formed with the same shape, and the remaining intermediate sheets (24, 25) may be formed with different shapes. For example, some of the intermediate sheets (21, 22, 23) may include a first opening (21b, 22b, 23b), a second opening (21c, 22c, 23c), and a third opening (21a, 22a, 23a). However, the other intermediate sheet (24) may include the first opening (24b) and the second opening (24c), but may not include the third opening.

[0072] A plurality of intermediate sheets (21, 22, 23, 24, 25) may be formed from either a polymer sheet (commercially available base sheet such as PC (Polycarbonate), acrylic, etc.) or a prepreg including carbon fiber, glass fiber, aramid fiber, etc. A plurality of intermediate sheets (21, 22, 23, 24, 25) may be formed by cutting a commercially available base sheet.

[0073] When stacking multiple intermediate sheets (21, 22, 23, 24, 25), an adhesive layer may exist between two intermediate sheets. Alternatively, when stacking multiple intermediate sheets (21, 22, 23, 24, 25), an adhesive layer may not exist between two intermediate sheets.

[0074] For example, when a plurality of intermediate sheets (21, 22, 23, 24, 25) are formed as polymer sheets, an adhesive layer may exist between the plurality of intermediate sheets (21, 22, 23, 24, 25). As another example, when a plurality of intermediate sheets (21, 22, 23, 24, 25) are formed as prepregs, the plurality of intermediate sheets (21, 22, 23, 24, 25) are bonded due to the impregnated epoxy resin, so a separate adhesive layer may not exist between the plurality of intermediate sheets (21, 22, 23, 24, 25).

[0075] A plurality of intermediate sheets (21, 22, 23, 24, 25) are laminated on the upper surface of a printed circuit board assembly (10), and each of the plurality of intermediate sheets (21, 22, 23, 24, 25) may include a first opening (21b, 22b, 23b, 24b, 25b) that forms a resonance space (40) corresponding to a sound generator (12). As the resonance space (40) increases, the volume of sound emitted to the outside of the smart tag (1) may increase.

[0076] A plurality of intermediate sheets (21, 22, 23, 24, 25) can be formed to be attached to a portion of the upper surface of a printed circuit board (11) where a battery (13), a sound generator (12), and a plurality of electronic components (15, 16, 17) are not installed.

[0077] Some of the multiple intermediate sheets (21, 22, 23, 24, 25) may further include multiple openings formed to accommodate a battery (13) of the printed circuit board assembly (10) and multiple electronic components (15, 16, 17). For example, some of the intermediate sheets (21, 22, 23) may include a second opening (21c, 22c, 23c) that forms a component space for accommodating multiple electronic components (15, 16, 17) and a third opening (21a, 22a, 23a) that forms a battery space for accommodating the battery (13).

[0078] One of the multiple intermediate sheets (21, 22, 23, 24, 25), intermediate sheet (24), is formed to cover the battery (13) and may further include a second opening (21c, 22c, 23c) formed to accommodate multiple electronic components (15, 16, 17). For example, one intermediate sheet (24) may not include a third opening forming a battery space, unlike the other intermediate sheets. This intermediate sheet (24) may be installed to accommodate the sound generator (12) and multiple electronic components (15, 16, 17) and to cover the top of the battery (13).

[0079] A plurality of intermediate sheets (21, 22, 23, 24, 25) may be formed in a shape corresponding to the printed circuit board assembly (10). For example, a plurality of intermediate sheets (21, 22, 23, 24, 25) may be formed in a rectangular shape having the same size as the printed circuit board assembly (10).

[0080] A plurality of intermediate sheets (21, 22, 23, 24, 25) may include a border (210, 220, 230, 240, 250) for forming a resonance space (40), a component space, and a battery space, and at least one main bar (212, 222, 232, 252; 213, 223, 233, 243, 253).

[0081] For example, each of the multiple intermediate sheets (21, 22, 23, 24, 25) may include a border (210, 220, 230, 240, 250) and a main bar (212, 222, 232, 252; 213, 223, 233, 243, 253).

[0082] The border (210, 220, 230, 240, 250) may be formed in a rectangular shape corresponding to the edge of the printed circuit board assembly (10). For example, the border (210, 220, 230, 240, 250) may be formed in a rectangular shape surrounding the sound generator (12), the battery (13), and a plurality of electronic components (15, 16, 17). As an example, the border (210, 220, 230, 240, 250) may be formed in a rectangular window frame shape. The border (210, 220, 230, 240, 250) may be provided along the edge of the printed circuit board assembly (10).

[0083] At least one main bar (212, 222, 232, 252; 213, 223, 233, 243, 253) may be formed approximately perpendicular to two opposing sides of the rim (210, 220, 230, 240, 250). For example, the main bar (212, 222, 232, 252; 213, 223, 233, 243, 253) may be formed in a narrow, long band shape.

[0084] As an example, the rim (210, 220, 230, 240, 250) may include two long sides and two short sides facing each other. At least one main bar (212, 222, 232, 252; 213, 223, 233, 243, 253) may be formed approximately perpendicular to the two long sides. For example, at least one main bar (212, 222, 232, 252; 213, 223, 233, 243, 253) may be formed between the sound generator (12) and the battery (13).

[0085] For example, at least one main bar (212,222,232,252; 213,223,233,243,253) may include a first main bar (213,223,233,243,253) and a second main bar (212,222,232,252). The first main bar (213,223,233,243,253) and the second main bar (212,222,232,252) may be formed parallel to each other. The first main bar (213,223,233,243,253) and the second main bar (212,222,232,252) may be formed parallel to two short sides of the rim (210,220,230,240,250). The first main bar (213, 223, 233, 243, 253) may be formed between the sound generator (12) and a plurality of electronic components (15, 16, 17). The second main bar (212, 222, 232, 252) may be formed between the sound generator (12) and the battery (13).

[0086] The two main bars (212, 222, 232, 252; 213, 223, 233, 243, 253) can divide the internal space of the rim (210, 220, 230, 240, 250) into three areas, i.e., three openings, in which a sound generator (12), a battery (13), and a plurality of electronic components (15, 16, 17) are installed. For example, the first main bar (213, 223, 233, 243, 253) and the second main bar (212, 222, 232, 252) can divide the internal space of the frame (210, 220, 230, 240, 250) into a first opening (21b, 22b, 23b, 24b, 25b) in which a sound generator (12) is accommodated, a second opening (21c, 22c, 23c, 24c, 25c) in which a plurality of electronic components (15, 16, 17) are accommodated, and a third opening (21a, 22a, 23a) in which a battery (13) is accommodated.

[0087] The first main bar (213, 223, 233, 243, 253) may be supported by at least one sub bar (214, 224, 234, 244, 254; 215, 225, 235, 245, 255). At least one sub bar (214, 224, 234, 244, 254; 215, 225, 235, 245, 255) may be formed between the first main bar (213, 223, 233, 243, 253) and the rim (210, 220, 230, 240, 250). For example, the first main bar (213, 223, 233, 243, 253) may be connected to one side of a border (210, 220, 230, 240, 250) parallel to the first main bar (213, 223, 233, 243, 253) by at least one sub bar (214, 224, 234, 244, 254; 215, 225, 235, 245, 255). At least one sub bar (214, 224, 234, 244, 254; 215, 225, 235, 245, 255) may be formed approximately perpendicular to the first main bar (213, 223, 233, 243, 253).

[0088] At least one sub-bar may include a first sub-bar (214, 224, 234, 244, 254) and a second sub-bar (215, 225, 235, 245, 255).

[0089] The first sub-bar (214, 224, 234, 244, 254) may be formed to connect one end of the first main bar (213, 223, 233, 243, 253) and the short side of the rim (210, 220, 230, 240, 250). The first sub-bar (214, 224, 234, 244, 254) may be formed approximately parallel to the long side of the rim (210, 220, 230, 240, 250).

[0090] The second sub-bar (215, 225, 235, 245, 255) may be formed to connect the middle portion of the first main bar (213, 223, 233, 243, 253) and the short side of the rim (210, 220, 230, 240, 250). The second sub-bar (215, 225, 235, 245, 255) may be formed approximately parallel to the first sub-bar (214, 224, 234, 244, 254).

[0091] The main bar (212, 222, 232, 252; 213, 223, 233, 243, 253) may include a plurality of support bars (219, 229, 239, 249, 259). The plurality of support bars (219, 229, 239, 249, 259) may be formed to protrude toward the resonance space (40) from the main bar (212, 222, 232, 252; 213, 223, 233, 243, 253). The plurality of support bars (219, 229, 239, 249, 259) may be formed at regular intervals along the main bar (212, 222, 232, 252; 213, 223, 233, 243, 253). Multiple support bars (219, 229, 239, 249, 259) may have different lengths.

[0092] For example, a plurality of support bars (219, 229, 239, 249, 259) may be formed to protrude toward the resonance space (40) from the inner surface of the rim (210, 220, 230, 240, 250) forming the resonance space (40). The plurality of support bars (219, 229, 239, 249, 259) may be formed at regular intervals along the rim (210, 220, 230, 240, 250). The plurality of support bars (219, 229, 239, 249, 259) may be formed to have different lengths.

[0093] A plurality of support bars (219, 229, 239, 249, 259) can be formed to support the upper sheet (31). Accordingly, the plurality of support bars (219, 229, 239, 249, 259) can prevent or minimize the wobbly sensation felt by the user when holding the smart tag (1).

[0094] A plurality of intermediate sheets (21, 22, 23, 24, 25) may further include connecting bars (216, 226, 236, 246, 256). The connecting bars (216, 226, 236, 246, 256) may be formed to connect a first main bar (213, 223, 233, 243, 253) and a second sub bar (215, 225, 235, 245, 255). The connecting bars (216, 226, 236, 246, 256) may be formed to partition between a plurality of electronic components (15, 16, 17).

[0095] A second opening (21c, 22c, 23c, 24c, 25c) that accommodates a plurality of electronic components (15, 16, 17) can be divided into five sub-regions by a first sub-bar (214, 224, 234, 244, 254), a second sub-bar (215, 225, 235, 245, 255), and a connecting bar (216, 226, 236, 246, 256).

[0096] For example, a first sub-region (41) may be formed by the short side of the border (210, 220, 230, 240, 250), the first main bar (213, 223, 233, 243, 253), the first sub-bar (214, 224, 234, 244, 254), and the second sub-bar (215, 225, 235, 245, 255). A second sub-region (43) may be formed by the first main bar (213, 223, 233, 243, 253), the second sub-bar (215, 225, 235, 245, 255), and the connecting bar (216, 226, 236, 246, 256). A third sub-region (42) may be formed by the second sub-bar (215, 225, 235, 245, 255) and the connecting bar (216, 226, 236, 246, 256). A fourth sub-region (402) may be formed by the long side of the border (210, 220, 230, 240, 250) and the first sub-bar (214, 224, 234, 244, 254). A fifth sub-region (401) may be formed by the corner of the border (210, 220, 230, 240, 250) facing the connecting bar (216, 226, 236, 246, 256) and the connecting bar (216, 226, 236, 246, 256).

[0097] A plurality of electronic components (15, 16, 17) may be installed in the first sub-area (41), the second sub-area (43), and the third sub-area (42). For example, a processor (17) may be installed in the first sub-area (41). A light source (16), for example, an LED, may be installed in the second sub-area (43). A button (15) may be installed in the third sub-area (42).

[0098] Electronic components (15, 16, 17) may not be installed in the fourth sub-region (402) and the fifth sub-region (401). The fourth sub-region (402) and the fifth sub-region (401) may be connected to a first opening (21b, 22b, 23b, 24b, 25b) formed between the first main bar (213, 223, 233, 243, 253) and the second main bar (212, 222, 232, 252). For example, the fourth sub-region (402) and the fifth sub-region (401) of the second opening (21c, 22c, 23c, 24c, 25c) may form a resonance space (40) together with the first opening (21b, 22b, 23b, 24b, 25b). In other words, a part (401, 402) of the second opening (21c, 22c, 23c, 24c, 25c) where multiple electronic components (15, 16, 17) are not installed can form a resonance space (40).

[0099] When a plurality of intermediate sheets (21, 22, 23, 24, 25) including a border (210, 220, 230, 240, 250), at least one main bar (212, 222, 232, 252; 213, 223, 233, 243, 253), and at least one sub bar (214, 224, 234, 244, 254; 215, 225, 235, 245, 255) are laminated on the upper surface of a printed circuit board assembly (10), a resonance space (40), a component space, and a battery space can be formed in three dimensions.

[0100] A plurality of intermediate sheets (21, 22, 23, 24, 25) may include a plurality of guide holes (50) for assembly. A plurality of guide holes (50) may be formed at the corners of the plurality of intermediate sheets (21, 22, 23, 24, 25). In the case of the embodiment shown in FIG. 2, the plurality of intermediate sheets (21, 22, 23, 24, 25) may include three guide holes (50) formed at three corners.

[0101] Referring to FIG. 3, a smart tag (1) according to one or more embodiments of the present disclosure may include a printed circuit board assembly (10), a first intermediate sheet (21), a second intermediate sheet (22), a third intermediate sheet (23), a fourth intermediate sheet (24), a fifth intermediate sheet (25), an upper sheet (31), and a lower sheet (32).

[0102] The printed circuit board assembly (10) may include a printed circuit board (11), a sound generator (12), a battery (13), and a plurality of electronic components (15, 16, 17). Since the printed circuit board assembly (10) is identical to the embodiment described above, a redundant description is omitted.

[0103] The first intermediate sheet (21) may be installed on the upper surface of the printed circuit board assembly (10). The first intermediate sheet (21) may include a border (210), a first main bar (213), a second main bar (212), a first sub bar (214), a second sub bar (215), and a connecting bar (216).

[0104] The border (210) may be formed in a rectangular shape corresponding to the edge of the printed circuit board assembly (10). For example, the border (210) may be formed in a rectangular window frame shape. The border (210) may include two long sides (2103, 2104) and two short sides (2101, 2102).

[0105] The first main bar (213) and the second main bar (212) may be formed parallel to each other. The first main bar (213) and the second main bar (212) may each be formed approximately parallel to the two short sides (2101, 2102) of the rim (210). The first main bar (213) and the second main bar (212) may each be formed approximately perpendicular to the two long sides (2103, 2104) of the rim (210).

[0106] The first sub-bar (214) may be formed to connect one end of the first main bar (213) and the short side (2102) of the rim (210). The first sub-bar (214) may be formed adjacent to the long side (2104) of the rim (210) and approximately parallel to the long side (2104). The second sub-bar (215) may be formed to connect the middle part of the first main bar (213) and the short side (2102) of the rim (210). The second sub-bar (215) may be formed approximately parallel to the first sub-bar (214). The first sub-bar (214) and the second sub-bar (215) may be formed approximately perpendicular to the first main bar (213).

[0107] A connecting bar (216) may be formed to connect the first main bar (213) and the second sub bar (215). The connecting bar (216) may be formed to partition the space between the first main bar (213) and the second sub bar (215). The connecting bar (216) may extend vertically from the other end of the first main bar (213) and be bent several times to be connected to the second sub bar (215).

[0108] The first intermediate sheet (21) may include a first opening (21b) forming a resonance space (40), a second opening (22c) forming a component space, and a third opening (21a) forming a battery space.

[0109] For example, the first main bar (213), the second main bar (212), and the portion of the two long sides (2103, 2104) of the rim (210) corresponding to the gap between the first main bar (213) and the second main bar (212) may form the first opening (21b). The first main bar (213), the short side (2102) of the rim (210), and the portion of the two long sides (2103, 2104) of the rim (210) corresponding to the gap between the first main bar (213) and the short side (2102) of the rim (210) may form the second opening (22c). The second main bar (212), the short side (2101) of the border (210), and the two long sides (2103, 2104) of the border (210) corresponding to the gap between the second main bar (212) and the short side (2101) of the border (210) can form a third opening (21a).

[0110] For example, the second opening (22c) of the first intermediate sheet (21) can be divided into five sub-regions. In other words, the second opening (22c) can be divided into five sub-regions by the first sub-bar (214), the second sub-bar (215), and the connecting bar (216).

[0111] For example, a first sub-region (41) may be formed by the short side (2102) of the border (210), the first main bar (213), the first sub-bar (214), and the second sub-bar (215). A second sub-region (43) may be formed by the first main bar (213), the second sub-bar (215), and the connecting bar (216). A third sub-region (42) may be formed by the second sub-bar (215) and the connecting bar (216). A fourth sub-region (402) may be formed by the long side (2103) of the border (210) and the first sub-bar (214). A fifth sub-region (401) may be formed by the corner of the border (210) facing the connecting bar (216) and the connecting bar (216).

[0112] The fourth sub-region (402) and the fifth sub-region (401) may be in communication with the first opening (21b) formed between the first main bar (213) and the second main bar (212). For example, the fourth sub-region (402) and the fifth sub-region (401) of the second opening (22c) may be connected to the first opening (21b) to form a resonance space (40) together with the first opening (21b). In other words, the resonance space (40) may be formed to surround the first sub-region (41), the second sub-region (43), and the third sub-region (42) of the second opening (22c). The resonance space (40) may be formed to extend to both sides of the second opening (22c).

[0113] The first intermediate sheet (21) may include a plurality of support bars (219). The plurality of support bars (219) may be formed to protrude toward the interior of the first opening (21b) from the first main bar (213) and the second main bar (212). The plurality of support bars (219) may be formed at regular intervals along the first main bar (213) and the second main bar (212).

[0114] Additionally, a plurality of support bars (219) may be formed to protrude toward the interior of the first opening (21b) from two long sides (2103, 2104) of the rim (210) forming the first opening (21b). A plurality of support bars (219) may be formed at regular intervals along the rim (210).

[0115] Additionally, a plurality of support bars (219) may be formed to protrude toward the interior of the fifth sub-region (401) from the rim (210) and the connecting bar (216) forming the fifth sub-region (401) of the second opening (22c).

[0116] Since the fifth sub-region (401) of the first opening (21b) and the second opening (22c) forms a resonance space (40), a plurality of support bars (219) can be formed to protrude toward the resonance space (40).

[0117] Multiple support bars (219) can be formed to have different lengths depending on their position.

[0118] The second intermediate sheet (22) can be installed on the upper surface of the first intermediate sheet (21). In other words, the second intermediate sheet (22) can be laminated onto the first intermediate sheet (21).

[0119] The second intermediate sheet (22) may include a border (220), a first main bar (223), a second main bar (222), a first sub bar (224), a second sub bar (225), and a connecting bar (226).

[0120] The border (220) may be formed in the shape of a rectangular window frame. The border (220) may include two long sides (2203, 2204) and two short sides (2201, 2202).

[0121] The second intermediate sheet (22) may include a first opening (22b) forming a resonance space (40), a second opening (22c) forming a component space, and a third opening (22a) forming a battery space.

[0122] The second intermediate sheet (22) may include a plurality of support bars (229). The plurality of support bars (229) may be formed to protrude toward the interior of the first opening (22b) from the first main bar (223) and the second main bar (222). Additionally, the plurality of support bars (229) may be formed to protrude toward the interior of the first opening (22b) from two long sides (2203, 2204) of the rim (220) forming the first opening (22b). Additionally, the plurality of support bars (229) may be formed to protrude toward the fifth sub-region (401) from the rim (220) forming the fifth sub-region (401) of the second opening (22c) and the connecting bar (226).

[0123] Since the second intermediate sheet (22) is formed with the same shape as the first intermediate sheet (21), a repeated description is omitted.

[0124] The third intermediate sheet (23) can be installed on the upper surface of the second intermediate sheet (22). In other words, the third intermediate sheet (23) can be laminated onto the second intermediate sheet (22).

[0125] The third intermediate sheet (23) may include a border (230), a first main bar (233), a second main bar (232), a first sub bar (234), a second sub bar (235), and a connecting bar (236).

[0126] The border (230) may be formed in the shape of a rectangular window frame. The border (230) may include two long sides (2303, 2304) and two short sides (2301, 2302).

[0127] The third intermediate sheet (23) may include a first opening (23b) forming a resonance space (40), a second opening (23c) forming a component space, and a third opening (23a) forming a battery space.

[0128] The third intermediate sheet (23) may include a plurality of support bars (239). The plurality of support bars (239) may be formed to protrude toward the interior of the first opening (23b) from the first main bar (233) and the second main bar (232). Additionally, the plurality of support bars (239) may be formed to protrude toward the interior of the first opening (23b) from two long sides (2303, 2304) of the rim (230) forming the first opening (23b). Additionally, the plurality of support bars (239) may be formed to protrude toward the fifth sub-region (401) from the rim (230) forming the fifth sub-region (401) of the second opening (23c) and the connecting bar (236).

[0129] Since the third intermediate sheet (23) is formed with the same shape as the first intermediate sheet (21), a repeated description is omitted.

[0130] The fourth intermediate sheet (24) can be installed on the upper surface of the third intermediate sheet (23). In other words, the fourth intermediate sheet (24) can be laminated onto the third intermediate sheet (23).

[0131] The fourth intermediate sheet (24) may include a border (240), a first main bar (243), a first sub bar (244), a second sub bar (245), and a connecting bar (246).

[0132] The border (240) may be formed in a rectangular window frame shape corresponding to the border (230) of the third intermediate sheet (23). The border (240) may include two long sides (2403, 2404), one short side (2402), and a cover portion (2401). The cover portion (2401) is formed to cover the third opening (23a) of the third intermediate sheet (23).

[0133] The first main bar (243) and the cover portion (2401) may be formed parallel to each other. The first main bar (243) and the cover portion (2401) may each be formed parallel to the short side (2402) of the edge (240).

[0134] The first main bar (243), first sub bar (244), second sub bar (245), and connecting bar (246) of the fourth intermediate sheet (24) are identical to the first intermediate sheet (21) described above, so a redundant description is omitted.

[0135] The fourth intermediate sheet (24) may include a first opening (24b) forming a resonance space (40), a second opening (24c) forming a component space, and a cover portion (2401) covering the battery space.

[0136] For example, the first opening (24b) may be formed as a part of the first main bar (243), one side of the cover portion (2401), and two long sides (2403, 2404) of the rim (240) corresponding to the gap between the first main bar (243) and the cover portion (2401). The second opening (24c) may be formed as a part of the first main bar (243), one short side (2402) of the rim (240), and two long sides (2403, 2404) of the rim (240) corresponding to the gap between the first main bar (243) and the short side (2402) of the rim (240). The first opening (24b) and the second opening (24c) of the fourth intermediate sheet (24) may be formed in the same way as the first opening (23b) and the second opening (23c) of the third intermediate sheet (23).

[0137] The cover portion (2401) is formed on one side of the first opening (24b) and can be formed to cover the upper part of the third opening (23a) of the third intermediate sheet (23). Accordingly, when the fourth intermediate sheet (24) is installed on the upper surface of the third intermediate sheet (23), the third opening (23a) of the third intermediate sheet (23) may not be exposed.

[0138] The fourth intermediate sheet (24) may include a plurality of support bars (249). The plurality of support bars (249) may be formed to protrude from the first main bar (243) toward the interior of the first opening (24b). Additionally, the plurality of support bars (249) may be formed to protrude from one side of the cover portion (2401) toward the interior of the first opening (24b). Additionally, the plurality of support bars (249) may be formed to protrude from two long sides (2403, 2404) of the rim (240) forming the first opening (24b) toward the interior of the first opening (24b). Additionally, the plurality of support bars (249) may be formed to protrude from the rim (240) forming the fifth sub-region (401) of the second opening (24c) and the connecting bar (246) toward the fifth sub-region (401).

[0139] Multiple support bars (249) may be formed at regular intervals. Multiple support bars (249) may be formed to have different lengths depending on the installed location.

[0140] The plurality of support bars (249) of the fourth intermediate sheet (24) can be formed in the same way as the plurality of support bars (239) of the third intermediate sheet (23).

[0141] The fifth intermediate sheet (25) can be installed on the upper surface of the fourth intermediate sheet (24). In other words, the fifth intermediate sheet (25) can be laminated onto the fourth intermediate sheet (24).

[0142] The fifth intermediate sheet (25) may include a border (250), a first main bar (253), a second main bar (252), a first sub bar (254), a second sub bar (255), and a connecting bar (256).

[0143] The border (250) of the fifth intermediate sheet (25) may be formed in a rectangular window frame shape corresponding to the border (240) of the fourth intermediate sheet (24). The border (250) may include two long sides (2503, 2504) and two short sides (2501, 2502).

[0144] The first main bar (253) and the second main bar (252) can be formed parallel to each other. The first main bar (253) and the second main bar (252) can each be formed parallel to two short sides (2501, 2502) of the edge (250).

[0145] The first main bar (253) of the fifth intermediate sheet (25) can be formed identically to the first main bar (243) of the fourth intermediate sheet (24). The second main bar (252) of the fifth intermediate sheet (25) can be formed so as not to overlap with the cover portion (2401) of the fourth intermediate sheet (24). For example, the second main bar (252) can be positioned closer to the first main bar (253) than to one side of the cover portion (2401) of the fourth intermediate sheet (24). Thus, the first main bar (253) can be positioned over the first opening (24b) of the fourth intermediate sheet (24).

[0146] The first main bar (253), first sub bar (254), second sub bar (255), and connecting bar (256) of the fifth intermediate sheet (25) are identical to the first intermediate sheet (21) described above, so a redundant description is omitted.

[0147] The fifth intermediate sheet (25) may include a first opening (25b) forming a resonance space (40), a second opening (25c) forming a component space, and an expansion opening (25a) forming an expansion space.

[0148] For example, the first main bar (253), the second main bar (252), and the portion of the two long sides (2503, 2504) of the rim (250) corresponding to the gap between the first main bar (253) and the second main bar (252) may form the first opening (25b). The first main bar (253), the short side (2502) of the rim (250), and the portion of the two long sides (2503, 2504) of the rim (250) corresponding to the gap between the first main bar (253) and the short side (2502) of the rim (250) may form the second opening (25c). The second main bar (252), the short side (2501) of the border (250), and the two long sides (2503, 2504) of the border (250) corresponding to the gap between the second main bar (252) and the short side (2501) of the border (250) can form an expanded opening (25a).

[0149] The second main bar (252) may be formed such that the expansion opening (25a) communicates with the first opening (24b) of the fourth intermediate sheet (24). For example, since the second main bar (252) of the fifth intermediate sheet (25) is positioned over the first opening (24b) of the fourth intermediate sheet (24), the expansion opening (25a) may communicate with the first opening (24b) of the fourth intermediate sheet (24). Since the first opening (24b) of the fourth intermediate sheet (24) forms a resonance space (40) in which the sound generator (12) is accommodated, the expansion opening (25a) may communicate with the resonance space (40). Thus, the expansion opening (25a) of the fifth intermediate sheet (25) may form an expansion space connected to the resonance space (40). In other words, the expansion opening (25a) of the fifth intermediate sheet (25) can function to expand the resonance space (40).

[0150] The fifth intermediate sheet (25) may include a plurality of support bars (259). The plurality of support bars (259) may be formed to protrude toward the interior of the first opening (25b) from the first main bar (253) and the second main bar (252). Additionally, the plurality of support bars (259) may be formed to protrude toward the interior of the first opening (25b) from two long sides (2503, 2504) of the rim (250) forming the first opening (25b). Additionally, the plurality of support bars (259) may be formed to protrude toward the fifth sub-region (401) from the rim (250) forming the fifth sub-region (401) of the second opening (25c) and the connecting bar (256).

[0151] A plurality of support bars (259) formed on the first main bar (253) and the rim (250) of the fifth intermediate sheet (25) may be formed identically to the plurality of support bars (249) of the fourth intermediate sheet (24). A plurality of support bars (259) formed on the second main bar (252) may be formed with a shorter length at the same location as the plurality of support bars (249) of the fourth intermediate sheet (24).

[0152] A plurality of support bars (259) may be formed inside the expansion opening (25a). A plurality of support bars (259) may be formed to protrude toward the interior of the expansion opening (25a) from the second main bar (252) forming the expansion opening (25a) and the short side (2501) of the rim (250). A plurality of support bars (259) may be formed at staggered positions.

[0153] The first to fifth intermediate sheets (21, 22, 23, 24, 25) may be formed in the shape of thin sheets. As an example, the thickness of the first to fifth intermediate sheets (21, 22, 23, 24, 25) may be about 0.1 mm to 0.3 mm. The thicknesses of the first to fifth intermediate sheets (21, 22, 23, 24, 25) may be the same or not the same.

[0154] The first to fifth intermediate sheets (21, 22, 23, 24, 25) may be formed from either a polymer sheet (commercially available base sheet such as PC, acrylic, etc.) or a prepreg including carbon fiber, glass fiber, aramid fiber, etc. The first to fifth intermediate sheets (21, 22, 23, 24, 25) may be formed by cutting a commercially available base sheet.

[0155] The upper sheet (31) may be formed to cover the upper surface of the fifth intermediate sheet (25). The upper sheet (31) may be formed in a rectangular shape having the same size as the fifth intermediate sheet (25).

[0156] The lower sheet (32) may be formed to cover the lower surface of the printed circuit board assembly (10). The lower sheet (32) may be formed to have the same shape and size as the printed circuit board (11) of the printed circuit board assembly (10). The lower sheet (32) may be formed to be the same as the upper sheet (31).

[0157] The upper sheet (31) and the lower sheet (32) may be formed from the same material as the first to fifth intermediate sheets (21, 22, 23, 24, 25). For example, the upper sheet (31) and the lower sheet (32) may be formed from any one of PC fiber, acrylic fiber, glass fiber, or pre-preg. The upper sheet (31) and the lower sheet (32) may be formed by cutting commercially available sheet metal.

[0158] The upper sheet (31) and the lower sheet (32) may be formed with a thickness equal to or different from that of the first to fifth intermediate sheets (21, 22, 23, 24, 25). The upper sheet (31) forms the outermost surface of the smart tag (1) and needs to have enough strength so that the internal space formed by the first to fifth intermediate sheets (21, 22, 23, 24, 25) is not felt when a user holds the smart tag (1). Therefore, the thickness of the upper sheet (31) may be thicker than that of the first to fifth intermediate sheets (21, 22, 23, 24, 25). Since the lower sheet (32) is located on the lower surface of the printed circuit board (11), it may be thinner than the upper sheet (31). For example, the thickness of each of the upper sheet (31) and the lower sheet (32) may be about 0.1 mm to 0.3 mm.

[0159] FIG. 4 is a cross-sectional view of a smart tag (1) according to one or more embodiments of the present disclosure of FIG. 1, cut along line AA. FIG. 5 is a cross-sectional view of a smart tag (1) according to one or more embodiments of the present disclosure of FIG. 1, cut along line BB.

[0160] Referring to FIGS. 4 and 5, a smart tag (1) according to one or more embodiments of the present disclosure may include a printed circuit board assembly (10), a plurality of intermediate sheets (21, 22, 23, 24, 25), an upper sheet (31), and a lower sheet (32).

[0161] The printed circuit board assembly (10) may include a printed circuit board (11), a sound generator (12), a battery (13), and a plurality of electronic components. Since the printed circuit board assembly (10) is identical to the embodiment described above, a redundant description is omitted.

[0162] A plurality of intermediate sheets (21, 22, 23, 24, 25) may be laminated on the upper surface of a printed circuit board assembly (10). The plurality of intermediate sheets (21, 22, 23, 24, 25) may include a plurality of spaces. In other words, when a plurality of intermediate sheets (21, 22, 23, 24, 25) are laminated on the upper surface of a printed circuit board assembly (10), a plurality of openings formed in each of the plurality of intermediate sheets (21, 22, 23, 24, 25) may form a plurality of spaces.

[0163] For example, a plurality of stacked intermediate sheets (21, 22, 23, 24, 25) can form a resonance space (40) in which sound generated by a sound generator (12) can resonate, a component space in which a plurality of electronic components can be accommodated, and a battery space in which a battery (13) can be accommodated.

[0164] Multiple intermediate sheets (21, 22, 23, 24, 25) may be stacked higher than the height of the sound generator (12), battery (13), and multiple electronic components. For example, the sound generator (12), battery (13), and multiple electronic components may not protrude above the upper surface of the stacked multiple intermediate sheets (21, 22, 23, 24, 25).

[0165] For example, a plurality of intermediate sheets may include a first intermediate sheet (21), a second intermediate sheet (22), a third intermediate sheet (23), a fourth intermediate sheet (24), and a fifth intermediate sheet (25).

[0166] A first intermediate sheet (21) can be attached to the upper surface of a printed circuit board assembly (10). A second intermediate sheet (22) can be attached to the upper surface of the first intermediate sheet (21). A third intermediate sheet (23) can be attached to the upper surface of the second intermediate sheet (22). A fourth intermediate sheet (24) can be attached to the upper surface of the third intermediate sheet (23). A fifth intermediate sheet (25) can be attached to the upper surface of the fourth intermediate sheet (24).

[0167] The structure of the first intermediate sheet (21), the second intermediate sheet (22), the third intermediate sheet (23), the fourth intermediate sheet (24), and the fifth intermediate sheet (25) is the same as that of the plurality of intermediate sheets (21, 22, 23, 24, 25) of the smart tag (1) shown in FIG. 3, so a redundant description is omitted.

[0168] The upper sheet (31) may be formed to cover the upper surface of the fifth intermediate sheet (25). The upper sheet (31) may be formed in a rectangular shape having the same size as the fifth intermediate sheet (25). The lower surface of the upper sheet (31) may come into contact with a cushioning member (121) installed on the upper surface of the sound generator (12).

[0169] The lower sheet (32) may be formed to cover the lower surface of the printed circuit board assembly (10). The lower sheet (32) may be formed to have the same shape and size as the printed circuit board (11) of the printed circuit board assembly (10). The lower sheet (32) may be formed to be the same as the upper sheet (31).

[0170] Hereinafter, a method for manufacturing a smart tag (1) according to one or more embodiments of the present disclosure will be described in detail with reference to FIGS. 6a to 6f.

[0171] FIG. 6a is a perspective view showing a printed circuit board assembly (10) of a smart tag (1) according to one or more embodiments of the present disclosure.

[0172] Referring to FIG. 6a, the printed circuit board assembly (10) may include a printed circuit board (11), a sound generator (12), a battery (13), and a plurality of electronic components (15, 16, 17). The sound generator (12), the battery (13), and the plurality of electronic components (15, 16, 17) may be installed on the upper surface of the printed circuit board (11).

[0173] The sound generator (12) can be formed to generate sound. The sound generator (12) can be formed to generate various types of sound. For example, the sound generator (12) can be formed as a buzzer.

[0174] A cushioning member (121) may be installed on the upper surface of the sound generator (12). The cushioning member (121) may be installed between the sound generator (12) and the upper sheet (31).

[0175] The battery (13) may be formed to supply power to the sound generator (12) and a plurality of electronic components (15, 16, 17). For example, the battery (13) may be formed as a rechargeable battery (13).

[0176] Multiple electronic components (15, 16, 17) may be provided to enable the smart tag (1) to perform various functions. Multiple electronic components (15, 16, 17) may be installed on a printed circuit board (11) to form an electronic circuit that enables the smart tag (1) to perform various functions.

[0177] For example, the printed circuit board assembly (10) may include a button (15). The button (15) may be formed to control the operation of the smart tag (1).

[0178] For example, the printed circuit board assembly (10) may include a light source (16). The light source (16) may be formed to emit light.

[0179] The printed circuit board assembly (10) may include a plurality of guide holes (50) formed at the corners. For example, the printed circuit board assembly (10) may include three guide holes (50) formed at three corners.

[0180] FIG. 6b is a perspective view showing the state in which a first intermediate sheet (21) is attached to the upper surface of the printed circuit board assembly (10) of FIG. 6a.

[0181] Referring to FIG. 6b, the first intermediate sheet (21) can be attached to the upper surface of the printed circuit board assembly (10), that is, the upper surface of the printed circuit board (11).

[0182] The first intermediate sheet (21) may include a border (210), a first main bar (213), a second main bar (212), a first sub bar (214), a second sub bar (215), a connecting bar (216), and a plurality of support bars (219).

[0183] The edge (210) of the first intermediate sheet (21), the first main bar (213), the second main bar (212), the first sub bar (214), the second sub bar (215), the connecting bar (216), and the plurality of support bars (219) can be attached to the upper surface of the printed circuit board assembly (10).

[0184] The border (210) of the first intermediate sheet (21), the first main bar (213), the second main bar (212), the first sub bar (214), the second sub bar (215), the connecting bar (216), and the plurality of support bars (219) have the same structure as the first intermediate sheet (21) described above, so a redundant description is omitted.

[0185] The first intermediate sheet (21) may include a first opening (21b) forming a resonance space (40), a second opening (21c) forming a component space, and a third opening (21a) forming a battery space. Since the first opening (21b), the second opening (21c), and the third opening (21a) of the first intermediate sheet (21) have the same structure as the first intermediate sheet (21) described above, a redundant description is omitted.

[0186] When the first intermediate sheet (21) is attached to the upper surface of the printed circuit board assembly (10), a sound generator (12) can be inserted into the first opening (21b), a plurality of electronic components (15, 16, 17) can be inserted into the second opening (21c), and a battery (13) can be inserted into the third opening (21a).

[0187] For example, the processor (17) may be located in the first sub-region (41) of the second opening (21c), the light source (16) may be located in the third sub-region (42) of the second opening (21c), and the button (15) may be located in the third sub-region (42) of the second opening (21c).

[0188] The fourth sub-region (402) and the fifth sub-region (401) of the second opening (21c) can be connected to the first opening (21b) formed between the first main bar (213) and the second main bar (212).

[0189] The first intermediate sheet (21) may include a plurality of guide holes (50) formed at the corners. For example, the first intermediate sheet (21) may include three guide holes (50) formed at three corners. The three guide holes (50) of the first intermediate sheet (21) may be formed to match the three guide holes (50) of the printed circuit board assembly (10).

[0190] FIG. 6c is a perspective view showing the state in which a second intermediate sheet (22) is laminated on the upper surface of the first intermediate sheet (21) of FIG. 6b.

[0191] Referring to FIG. 6c, the second intermediate sheet (22) can be attached to the upper surface of the first intermediate sheet (21).

[0192] The second intermediate sheet (22) may include a border (220), a first main bar (223), a second main bar (222), a first sub bar (224), a second sub bar (225), a connecting bar (226), and a plurality of support bars (229).

[0193] The edge (220) of the second intermediate sheet (22), the first main bar (223), the second main bar (222), the first sub bar (224), the second sub bar (225), the connecting bar (226), and a plurality of support bars (229) can be attached to the upper surface of the first intermediate sheet (21).

[0194] The border (220) of the second intermediate sheet (22), the first main bar (223), the second main bar (222), the first sub bar (224), the second sub bar (225), the connecting bar (226), and the plurality of support bars (229) may each be located directly above the border (210) of the first intermediate sheet (21), the first main bar (213), the second main bar (212), the first sub bar (214), the second sub bar (215), the connecting bar (216), and the plurality of support bars (219).

[0195] The border (220) of the second intermediate sheet (22), the first main bar (223), the second main bar (222), the first sub bar (224), the second sub bar (225), the connecting bar (226), and the plurality of support bars (229) have the same structure as the second intermediate sheet (22) described above, so a redundant description is omitted.

[0196] The second intermediate sheet (22) may include a first opening (22b) forming a resonance space (40), a second opening (22c) forming a component space, and a third opening (22a) forming a battery space. Since the first opening (22b), the second opening (22c), and the third opening (22a) of the second intermediate sheet (22) have the same structure as the second intermediate sheet (22) described above, a redundant description is omitted.

[0197] When the second intermediate sheet (22) is attached to the upper surface of the first intermediate sheet (21), a sound generator (12) can be inserted into the first opening (22b), a plurality of electronic components (15, 16, 17) can be inserted into the second opening (22c), and a battery (13) can be inserted into the third opening (22a).

[0198] For example, the processor (17) may be located in the first sub-region (41) of the second opening (22c), the light source (16) may be located in the third sub-region (42) of the second opening (22c), and the button (15) may be located in the third sub-region (42) of the second opening (22c).

[0199] The fourth sub-region (402) and the fifth sub-region (401) of the second opening (22c) can be connected to the first opening (22b) formed between the first main bar (223) and the second main bar (222).

[0200] The second intermediate sheet (22) may include a plurality of guide holes (50) formed at the corners. For example, the second intermediate sheet (22) may include three guide holes (50) formed at three corners. The three guide holes (50) of the second intermediate sheet (22) may be formed to match the three guide holes (50) of the printed circuit board assembly (10) and the first intermediate sheet (21).

[0201] FIG. 6d is a perspective view showing the state in which a third intermediate sheet (23) is laminated on the upper surface of the second intermediate sheet (22) of FIG. 6c.

[0202] Referring to FIG. 6d, the third intermediate sheet (23) can be attached to the upper surface of the second intermediate sheet (22).

[0203] The third intermediate sheet (23) may include a border (230), a first main bar (233), a second main bar (232), a first sub bar (234), a second sub bar (235), a connecting bar (236), and a plurality of support bars (239).

[0204] The rim (230) of the third intermediate sheet (23), the first main bar (233), the second main bar (232), the first sub bar (234), the second sub bar (235), the connecting bar (236), and the plurality of support bars (239) may be attached to the upper surface of the second intermediate sheet (22). The rim (230) of the third intermediate sheet (23), the first main bar (233), the second main bar (232), the first sub bar (234), the second sub bar (235), the connecting bar (236), and the plurality of support bars (239) may each be positioned directly above the rim (220), the first main bar (223), the second main bar (222), the first sub bar (224), the second sub bar (225), the connecting bar (226), and the plurality of support bars (229) of the second intermediate sheet (22).

[0205] The border (230) of the third intermediate sheet (23), the first main bar (233), the second main bar (232), the first sub bar (234), the second sub bar (235), the connecting bar (236), and the plurality of support bars (239) have the same structure as the third intermediate sheet (23) described above, so a redundant description is omitted.

[0206] The third intermediate sheet (23) may include a first opening (23b) forming a resonance space (40), a second opening (23c) forming a component space, and a third opening (23a) forming a battery space. Since the first opening (23b), the second opening (23c), and the third opening (23a) of the third intermediate sheet (23) have the same structure as the third intermediate sheet (23) described above, a redundant description is omitted.

[0207] When the third intermediate sheet (23) is attached to the upper surface of the second intermediate sheet (22), a sound generator (12) can be inserted into the first opening (23b), a plurality of electronic components (15, 16, 17) can be inserted into the second opening (23c), and a battery (13) can be inserted into the third opening (23a).

[0208] For example, the processor (17) may be located in the first sub-region (41) of the second opening (23c), the light source (16) may be located in the third sub-region (42) of the second opening (23c), and the button (15) may be located in the third sub-region (42) of the second opening (23c).

[0209] The fourth sub-region (402) and the fifth sub-region (401) of the second opening (23c) can be connected to the first opening (23b) formed between the first main bar (233) and the second main bar (232).

[0210] The third intermediate sheet (23) may include a plurality of guide holes (50) formed at the corners. For example, the third intermediate sheet (23) may include three guide holes (50) formed at three corners. The three guide holes (50) of the third intermediate sheet (23) may be formed to match the three guide holes (50) of the printed circuit board assembly (10), the first intermediate sheet (21), and the second intermediate sheet (22).

[0211] FIG. 6e is a perspective view showing the state in which the fourth intermediate sheet (24) is laminated on the upper surface of the third intermediate sheet (23) of FIG. 6d.

[0212] Referring to FIG. 6e, the fourth intermediate sheet (24) can be attached to the upper surface of the third intermediate sheet (23).

[0213] The fourth intermediate sheet (24) may include a border (240), a first main bar (243), a first sub bar (244), a second sub bar (245), a connecting bar (246), and a plurality of support bars (249).

[0214] The rim (240) of the fourth intermediate sheet (24), the first main bar (243), the first sub bar (244), the second sub bar (245), the connecting bar (246), and the plurality of support bars (249) may be attached to the upper surface of the third intermediate sheet (23). The rim (240) of the fourth intermediate sheet (24), the first main bar (243), the first sub bar (244), the second sub bar (245), the connecting bar (246), and the plurality of support bars (249) may each be positioned directly above the rim (230), the first main bar (233), the first sub bar (234), the second sub bar (235), the connecting bar (236), and the plurality of support bars (239) of the third intermediate sheet (23).

[0215] The border (240), first main bar (243), first sub bar (244), second sub bar (245), connecting bar (246), and plurality of support bars (249) of the fourth intermediate sheet (24) may be formed in the same way as the border (230), first main bar (233), first sub bar (234), second sub bar (235), connecting bar (236), and plurality of support bars (239) of the third intermediate sheet (23) described above.

[0216] The fourth intermediate sheet (24) may include a first opening (24b) forming a resonance space (40), a second opening (24c) forming a component space, and a cover portion (2401) covering the battery space.

[0217] The first opening (24b), the second opening (24c), and the cover portion (2401) of the fourth intermediate sheet (24) are identical to the fourth intermediate sheet (24) described above, so a redundant description is omitted.

[0218] The cover portion (2401) of the fourth intermediate sheet (24) may be formed to cover the third opening (23a) of the third intermediate sheet (23). The cover portion (2401) may be formed to cover a portion of the second main bar (232) of the third intermediate sheet (23). For example, a portion of the second main bar (232) of the third intermediate sheet (23) may be exposed over the fourth intermediate sheet (24).

[0219] When the fourth intermediate sheet (24) is attached to the upper surface of the third intermediate sheet (23), the first opening (24b) and the second opening (24c) of the fourth intermediate sheet (24) may coincide with the first opening (23b) and the second opening (23c) of the third intermediate sheet (23). For example, when the fourth intermediate sheet (24) is attached to the upper surface of the third intermediate sheet (23), a sound generator (12) may be inserted into the first opening (24b), and a plurality of electronic components (15, 16, 17) may be inserted into the second opening (24c).

[0220] For example, the processor (17) may be located in the first sub-region (41) of the second opening (24c), the light source (16) may be located in the third sub-region (42) of the second opening (24c), and the button (15) may be located in the third sub-region (42) of the second opening (24c).

[0221] The fourth sub-region (402) and the fifth sub-region (401) of the second opening (24c) can be connected to the first opening (24b) formed between the first main bar (243) and the cover portion (2401) of the fourth intermediate sheet (24).

[0222] Additionally, when the fourth intermediate sheet (24) is attached to the upper surface of the third intermediate sheet (23), the cover portion (2401) can cover the third opening (23a) of the third intermediate sheet (23). For example, the cover portion (2401) of the fourth intermediate sheet (24) can cover the battery (13) accommodated in the third opening (23a) of the third intermediate sheet (23). There may be a gap between the lower surface of the cover portion (2401) of the fourth intermediate sheet (24) and the battery (13). In other words, when the fourth intermediate sheet (24) is attached to the upper surface of the third intermediate sheet (23), the cover portion (2401) of the fourth intermediate sheet (24) can cover the upper side of the battery space formed by the third openings (21a, 22a, 23a) of the stacked first to third intermediate sheets (21, 22, 23).

[0223] A plurality of support bars (249) protruding from one side of the cover portion (2401) of the fourth intermediate sheet (24) may be formed to cover the upper surface of a plurality of support bars (219) protruding from the second main bar (232) of the third intermediate sheet (23) across the second main bar (232) of the third intermediate sheet (23). For example, the second main bar (252) of the third intermediate sheet (23) may be exposed between the plurality of support bars (249) protruding from one side of the cover portion (2401) of the fourth intermediate sheet (24).

[0224] The fourth intermediate sheet (24) may include a plurality of guide holes (50) formed at the corners. For example, the fourth intermediate sheet (24) may include three guide holes (50) formed at three corners. The three guide holes (50) of the fourth intermediate sheet (24) may be formed to match the three guide holes (50) of the printed circuit board assembly (10), the first intermediate sheet (21), the second intermediate sheet (22), and the third intermediate sheet (23).

[0225] FIG. 6f is a perspective view showing the state in which the fifth intermediate sheet (25) is laminated on the upper surface of the fourth intermediate sheet (24) of FIG. 6e.

[0226] Referring to FIG. 6e, the fifth intermediate sheet (25) can be attached to the upper surface of the fourth intermediate sheet (24).

[0227] The fifth intermediate sheet (25) may include a border (250), a first main bar (253), a second main bar (252), a first sub bar (254), a second sub bar (255), a connecting bar (256), and a plurality of support bars (259).

[0228] The rim (250) of the fifth intermediate sheet (25), the first main bar (253), the second main bar (252), the first sub bar (254), the second sub bar (255), the connecting bar (256), and the plurality of support bars (259) can be attached to the upper surface of the fourth intermediate sheet (24).

[0229] When the fifth intermediate sheet (25) is attached to the upper surface of the fourth intermediate sheet (24), the edge (250) of the fifth intermediate sheet (25), the first main bar (253), the first sub bar (254), the second sub bar (255), the connecting bar (256), and the plurality of support bars (259) can be positioned directly above the edge (240), the first main bar (243), the first sub bar (244), the second sub bar (245), the connecting bar (246), and the plurality of support bars (249) of the fourth intermediate sheet (24), respectively.

[0230] The border (250), first main bar (253), first sub bar (254), second sub bar (255), connecting bar (256), and multiple support bars (259) of the fifth intermediate sheet (25) may be formed in the same way as the border (240), first main bar (243), first sub bar (244), second sub bar (245), connecting bar (246), and multiple support bars (249) of the fourth intermediate sheet (24) described above.

[0231] The second main bar (252) of the fifth intermediate sheet (25) may be formed to be positioned closer to the sound generator (12) than the second main bar (242) of the fourth intermediate sheet (24). Accordingly, the second main bar (252) of the fifth intermediate sheet (25) is not positioned directly above the second main bar (242) of the fourth intermediate sheet (24). For example, the second main bar (252) of the fifth intermediate sheet (25) may be positioned above a plurality of support bars (249) extending from the second main bar (242) of the fourth intermediate sheet (24). Accordingly, there may be a gap between the third intermediate sheet (23) and the fifth intermediate sheet (25) that corresponds to the plurality of support bars (249) of the fourth intermediate sheet (24).

[0232] The fifth intermediate sheet (25) may include a first opening (25b) forming a resonance space (40), a second opening (25c) forming a component space, and an expansion opening (25a) forming an expansion space.

[0233] The first opening (25b) and the second opening (25c) of the fifth intermediate sheet (25) are identical or similar to the fourth intermediate sheet (24) described above, so a redundant description is omitted.

[0234] When the fifth intermediate sheet (25) is attached to the upper surface of the fourth intermediate sheet (24), the first opening (25b) and the second opening (25c) may coincide with the first opening (24b) and the second opening (24c) of the fourth intermediate sheet (24). For example, when the fifth intermediate sheet (25) is attached to the upper surface of the fourth intermediate sheet (24), a sound generator (12) may be inserted into the first opening (25b) of the fifth intermediate sheet (25), and a plurality of electronic components (15, 16, 17) may be inserted into the second opening (25c).

[0235] For example, the processor (17) may be located in the first sub-region (41) of the second opening (25c), the light source (16) may be located in the third sub-region (42) of the second opening (25c), and the button (15) may be located in the third sub-region (42) of the second opening (25c).

[0236] The fourth sub-region (402) and the fifth sub-region (401) of the second opening (25c) can be connected to the first opening (25b) formed between the first main bar (253) and the second main bar (252) of the fifth intermediate sheet (25).

[0237] The extended opening (25a) of the fifth intermediate sheet (25) may be formed to communicate with the first opening (24b) of the fourth intermediate sheet (24). For example, a portion of the extended opening (25a) of the fifth intermediate sheet (25) may be formed to protrude over the first opening (24b) of the fourth intermediate sheet (24) so ​​as to communicate with the first opening (24b) of the fourth intermediate sheet (24).

[0238] When the fifth intermediate sheet (25) is attached to the upper surface of the fourth intermediate sheet (24), the second main bar (252) of the fifth intermediate sheet (25) is positioned on a plurality of support bars (249) protruding into the first opening (24b) of the fourth intermediate sheet (24), so the expansion opening (25a) can communicate with the first opening (24b) of the fourth intermediate sheet (24). Since the first opening (24b) of the fourth intermediate sheet (24) forms a resonance space (40) in which the sound generator (12) is accommodated, the expansion opening (25a) of the fifth intermediate sheet (25) can communicate with the resonance space (40). Accordingly, the expansion opening (25a) of the fifth intermediate sheet (25) can form an expansion space connected to the resonance space (40). In other words, the expansion opening (25a) of the fifth intermediate sheet (25) can function to expand the resonance space (40) of the smart tag (1).

[0239] The fifth intermediate sheet (25) may include a plurality of guide holes (50) formed at the corners. For example, the fifth intermediate sheet (25) may include three guide holes (50) formed at three corners. The three guide holes (50) of the fifth intermediate sheet (25) may be formed to match the three guide holes (50) of the printed circuit board assembly (10), the first intermediate sheet (21), the second intermediate sheet (22), the third intermediate sheet (23), and the fourth intermediate sheet (24).

[0240] A plurality of guide holes (50) formed in the printed circuit board assembly (10), the first intermediate sheet (21), the second intermediate sheet (22), the third intermediate sheet (23), the fourth intermediate sheet (24), and the fifth intermediate sheet (25) can be used for lamination of the printed circuit board assembly (10), the first intermediate sheet (21), the second intermediate sheet (22), the third intermediate sheet (23), the fourth intermediate sheet (24), and the fifth intermediate sheet (25).

[0241] For example, if three guide rods of an assembly jig for a smart tag are sequentially inserted into three guide holes (50) of a printed circuit board assembly (10), a first intermediate sheet (21), a second intermediate sheet (22), a third intermediate sheet (23), a fourth intermediate sheet (24), and a fifth intermediate sheet (25), the printed circuit board assembly (10), the first intermediate sheet (21), the second intermediate sheet (22), the third intermediate sheet (23), the fourth intermediate sheet (24), and the fifth intermediate sheet (25) can be sequentially stacked to form a sheet assembly.

[0242] By installing a lower sheet (32) and an upper sheet (31) on the lower surface and upper surface of a sheet assembly, that is, on the lower surface of a stacked printed circuit board assembly (10) and the upper surface of a fifth intermediate sheet (25), and applying pressure with a constant pressure, a smart tag (1) according to one or more embodiments of the present disclosure as shown in FIG. 1 can be manufactured.

[0243] Various designs, such as characters and patterns, can be printed on the upper sheet (31) and lower sheet (32).

[0244] A smart tag (1) according to one or more embodiments of the present disclosure, formed by stacking multiple sheets, is manufactured using a thin sheet having a thickness of 0.3 mm or less, so generally, consumers cannot recognize the stacked structure on the side of the smart tag (1).

[0245] As another example, the side of the compressed smart tag (1) can be smoothed by performing post-processing, such as painting or edge coating.

[0246] A smart tag (1) according to one or more embodiments of the present disclosure having the above-described structure is not manufactured by injection molding using a mold, but is formed by cutting and laminating commercially available fabric sheets, making it easy to manufacture.

[0247] In addition, the smart tag (1) according to one or more embodiments of the present disclosure can be easily manufactured by stacking a plurality of thin intermediate sheets having a plurality of openings having a two-dimensional structure to form a plurality of spaces having a three-dimensional structure, namely a resonance space, a battery space, and a component space.

[0248] In addition, the smart tag (1) according to one or more embodiments of the present disclosure forms a space in which various parts of the smart tag (1) are accommodated and a resonance space in which sound emitted from a sound generator resonates by laminating a plurality of intermediate sheets, so unlike smart tags according to the prior art, the injection molding process or the application and drying process of liquid molding is unnecessary, making it easy to manufacture.

[0249] In addition, when the shape of the internal space of the smart tag is changed, the smart tag (1) according to one or more embodiments of the present disclosure is easy to manufacture because only the shape of the cutting die for producing a plurality of intermediate sheets needs to be modified to fit the internal space.

[0250] In addition, the smart tag (1) according to one or more embodiments of the present disclosure forms a resonance space by stacking a plurality of intermediate sheets, so that the part of the printed circuit board assembly where electronic components are not mounted and the upper space of the battery can be utilized as a resonance space. Accordingly, the resonance space of the smart tag (1) according to one or more embodiments of the present disclosure can be expanded.

[0251] In the above-described embodiment, a plurality of guide holes (50) are formed inside the smart tag (1). However, the positions of the plurality of guide holes (50) of the smart tag (1) according to one or more embodiments of the present disclosure are not limited thereto.

[0252] FIG. 7 is a perspective view showing a smart tag assembly according to one or more embodiments of the present disclosure including a margin portion (2).

[0253] Referring to FIG. 7, a smart tag assembly according to one or more embodiments of the present disclosure may include a margin portion (2).

[0254] The lower sheet (32), the printed circuit board assembly (10), the first intermediate sheet (21), the second intermediate sheet (22), the third intermediate sheet (23), the fourth intermediate sheet (24), the fifth intermediate sheet (25), and the upper sheet (31) may all include a margin portion (2). The margin portion (2) may include a plurality of guide holes (50). In the case of the present embodiment, three guide holes (50) may be formed in the margin portion (2).

[0255] The margin portion (2) of the smart tag assembly can be formed by stacking all margin portions (2) of the lower sheet (32), the printed circuit board assembly (10), the first intermediate sheet (21), the second intermediate sheet (22), the third intermediate sheet (23), the fourth intermediate sheet (24), the fifth intermediate sheet (25), and the upper sheet (31).

[0256] When assembling a smart tag assembly, a lower sheet (32), a printed circuit board assembly (10), a first intermediate sheet (21), a second intermediate sheet (22), a third intermediate sheet (23), a fourth intermediate sheet (24), a fifth intermediate sheet (25), and an upper sheet (31) can be stacked sequentially using a plurality of guide holes (50) formed in the margin portion (2).

[0257] After the stacking and compression of the smart tag assembly is completed, the margin portion (2) is cut, and the production of the smart tag (1) can be completed.

[0258] Although an embodiment in which a smart tag (1) includes five intermediate sheets (21, 22, 23, 24, 25) has been illustrated and described above, the present disclosure is not limited thereto. A smart tag (1) according to one or more embodiments of the present disclosure may include two to four intermediate sheets or six or more intermediate sheets.

[0259] FIG. 8 is a functional block diagram showing a smart tag (1) according to one or more embodiments of the present disclosure.

[0260] Referring to FIG. 8, a smart tag (1) according to one or more embodiments of the present disclosure may include a sound generator (12), a battery (13), a charging unit (14), a button (15), a light source (16), a communication unit (19), and a processor (17).

[0261] The sound generator (12) can be formed to generate sound. The sound generator (12) can be formed to generate various types of sound. For example, the sound generator (12) can be formed as a buzzer.

[0262] The battery (13) may be formed to supply power to the sound generator (12), light source (16), communication unit (19), and processor (17). For example, the battery (13) may be formed as a rechargeable battery (13). For instance, the battery (13) may be formed to be charged wirelessly.

[0263] The charging unit (14) can be formed to wirelessly charge the battery (13). The charging unit (14) may include a charging antenna (18) formed on a printed circuit board (11).

[0264] The button (15) can be formed to control the operation of the smart tag (1). For example, the button (15) can be formed to turn the smart tag (1) on / off. For example, the button (15) can enable the smart tag (1) to perform pairing with a mobile device.

[0265] The light source (16) can be formed to emit light. For example, the light source (16) can be formed as a light-emitting diode (LED).

[0266] The communication unit (19) can be configured to communicate wirelessly with a mobile device such as a smartphone or tablet computer. The smart tag (1) can be wirelessly connected to a mobile device through the communication unit (19). The smart tag (1) can be connected to a mobile device using various wireless communication methods. For example, the smart tag (1) can be paired with a mobile device through the communication unit (19).

[0267] For example, the smart tag (1) can be wirelessly connected to a mobile device using various communication methods such as BLE (Bluetooth low energy) and NFC (Near field communication).

[0268] The communication unit (19) may include a wireless communication antenna (191) formed on a printed circuit board (11).

[0269] The processor (17) can be configured to control the sound generator (12), charging unit (14), light source (16), and communication unit (19).

[0270] For example, the processor (17) can control the sound generator (12) to output sound. For example, the processor (17) can control the charging unit (14) to charge the battery (13). For example, the processor (17) can control the light source (16) to emit light. For example, the processor (17) can control the communication unit (19) to be paired with a mobile device. For example, the processor (17) can be wirelessly connected to a mobile device through the communication unit (19).

[0271] A smart tag (1) according to one or more embodiments of the present disclosure can be used for the object finding function of a mobile device.

[0272] FIG. 9 is a diagram showing a state in which a smart tag (1) according to one or more embodiments of the present disclosure is used for an object finding function of a mobile device (100). For reference, FIG. 9 illustrates a case where a smartphone is used as the mobile device (100).

[0273] An item finding app may be installed on a mobile device (100). As an example, FIG. 9 shows a mobile device (100) with an item finding app running.

[0274] Referring to FIG. 9, a map, a smart tag icon (102), and a smart tag control icon (103) are displayed on the display surface (101) of the mobile device (100).

[0275] The map can show the area around where the smart tag (1) is located.

[0276] The smart tag icon (102) can indicate the location where the smart tag (1) is located.

[0277] The smart tag control icon (103) may include at least one instruction to control the smart tag (1). For example, the smart tag control icon (103) may include a sound-ringing icon (104). When the user presses the sound-ringing icon (104), the sound generator (12) of the smart tag (1) may be activated to produce sound. Then, the user can hear the sound emitted from the smart tag (1) and know the location of the smart tag (1).

[0278] For example, if the smart tag (1) is formed as a credit card, the user can find the credit card using the item finding function of the mobile device (100).

[0279] For example, if the smart tag (1) is attached to an item such as a bag, the user can find the item using the item finding function of the mobile device (100).

[0280] Although the present disclosure has been illustrated and described above with reference to various embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the scope of the present disclosure as defined by the appended claims and equivalents.

Claims

1. A printed circuit board assembly including a sound generator, a battery, and a plurality of electronic components installed on one side; A plurality of intermediate sheets laminated on one surface of the above-described printed circuit board assembly and including a first opening forming a resonance space corresponding to the sound generator; An upper sheet covering one side of the plurality of intermediate sheets; and A smart tag comprising: a lower sheet covering the other side of the printed circuit board assembly.

2. In Paragraph 1, A smart tag, wherein some of the plurality of intermediate sheets further include a plurality of openings formed to accommodate the battery and the plurality of electronic components of the printed circuit board assembly.

3. In Paragraph 1, A smart tag, wherein one of the plurality of intermediate sheets is formed to cover the battery of the printed circuit board assembly and further includes a second opening formed to accommodate the plurality of electronic components.

4. In Paragraph 1, The above plurality of intermediate sheets are, A border formed in a rectangular shape corresponding to the edge of the printed circuit board assembly; and A smart tag comprising at least one main bar formed perpendicularly to two opposing sides of the above-mentioned border.

5. In Paragraph 4, The above border includes two long sides and two short sides facing each other, and A smart tag in which at least one main bar is formed perpendicularly to the two long sides.

6. In Paragraph 1, The above plurality of intermediate sheets are, A border formed in a rectangular shape that corresponds to the edge of the printed circuit board assembly and surrounds the sound generator, the battery, and the plurality of electronic components; and A smart tag comprising: two main bars that divide the internal space of the above-mentioned frame into three openings in which the sound generator, the battery, and the plurality of electronic components of the above-mentioned printed circuit board assembly are installed.

7. In Paragraph 6, The above plurality of intermediate sheets are, A smart tag further comprising at least one sub-bar connecting one of the two main bars and one side of the border parallel to the main bar.

8. In Paragraph 6, The above plurality of intermediate sheets are, A smart tag further comprising a plurality of support bars protruding toward the resonance space from the inner surface of the above-mentioned rim and the two main bars.

9. In Paragraph 6, A smart tag in which the three openings of the plurality of intermediate sheets include the first opening in which the sound generator is accommodated and the second opening in which the plurality of electronic components are accommodated.

10. In Paragraph 9, The plurality of intermediate sheets includes a first intermediate sheet, a second intermediate sheet, a third intermediate sheet, a fourth intermediate sheet, and a fifth intermediate sheet that are sequentially stacked on one surface of the printed circuit board assembly, and The first intermediate sheet, the second intermediate sheet, and the third intermediate sheet further include a third opening in which the battery is accommodated, The above-mentioned fourth intermediate sheet further includes a cover portion covering the upper part of the above-mentioned third opening, and The smart tag, wherein the above-mentioned fifth intermediate sheet further includes an expansion opening corresponding to the upper surface of the cover portion.

11. In Paragraph 10, A smart tag in which a portion of the expansion opening of the fifth intermediate sheet protrudes over the first opening of the fourth intermediate sheet so as to be in communication with the first opening of the fourth intermediate sheet.

12. In Paragraph 1, A smart tag comprising a printed circuit board assembly and a plurality of intermediate sheets, the plurality of guide holes formed at a plurality of corners.

13. In Paragraph 1, A smart tag in which the above plurality of intermediate sheets are formed from either a polymer sheet or a pre-preg.

14. In Paragraph 1, A smart tag having a plurality of intermediate sheets with a thickness of 0.1 mm to 0.3 mm.

15. In Paragraph 1, A smart tag, wherein the upper sheet is formed to cover the entire upper portion of the plurality of intermediate sheets.

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