KR20220160764A - Wireless charging antenna manufacturing kit and manufacturing method of wireless charging antenna - Google Patents

Abstract

The present disclosure relates to a wireless charging antenna manufacturing kit. The wireless charging antenna manufacturing kit comprises: a workbench in which work for manufacturing a wireless charging antenna is performed, and which is provided with a plurality of fixing pins; an antenna substrate having an antenna coil of a winding structure embedded to a predetermined depth; a shielding heat radiation sheet provided with a shielding layer sheet for shielding an electromagnetic wave or a magnetic wave generated from the antenna coil, and provided with a heat radiation layer sheet for blocking heat emitted from the antenna coil, so that the shielding heat radiation sheet is formed through the combination of the shielding layer sheet and the heat radiation layer sheet, and coupled to the antenna substrate; an injector injecting an adhesive or cushioning substance; and a mold plate provided with an injection mold into which the adhesive or cushioning substance is injected from the injector such that at least one of an adhesive unit and a cushioning unit can be formed, and seated on the shielding heat radiation sheet. Therefore, the shielding heat radiation sheet can be easily coupled to the antenna substrate.

Description

Wireless charging antenna manufacturing kit and manufacturing method of wireless charging antenna

The present disclosure is to inject an adhesive material and a cushion unit into an injection mold of a mold plate to accurately form an adhesive unit and a cushion unit at a predetermined position on a shielding heat dissipation sheet, thereby easily integrating the antenna substrate and the shielding heat dissipation sheet. It relates to a wireless charging antenna manufacturing kit and a method of manufacturing a wireless charging antenna.

As is well known, various functions such as near field communication (NFC), wireless identification (RFID), and magnetic secure transmission (MST) are being added to portable terminals such as mobile phones and tablet PCs. In particular, a wireless charging function for wirelessly charging a battery built into a portable terminal is provided. This wireless charging is performed on a wireless power receiving module built into the portable terminal and a wireless power transmitting module that supplies power to the wireless power receiving module. performed by The wireless power receiving module and the wireless power transmitting module are provided with a heat dissipation member for improving charging efficiency by dissipating heat generated during wireless charging to the outside. In general, graphite having good thermal conductivity is used as the heat dissipation member.

In addition, portable terminals are electronic devices with high-density circuits and integrated elements, and the possibility of generating and inducing electromagnetic waves is increasing, which can act as a factor in performance degradation, such as disturbing communication for wireless recognition of information, A shielding member such as an electromagnetic wave absorber for increasing wireless recognition performance by suppressing interference of electromagnetic waves by shielding and absorbing electromagnetic waves on the side of a wireless recognition antenna for RFID or NFC of a portable terminal is used.

Such a shielding member and a heat dissipation member may be conventionally combined in a structure in which a wireless charging antenna and a wireless recognition antenna are laminated on the lower surface of an antenna board. By punching a double-sided tape into a specific shape, attaching one side of the double-sided tape to the shielding member or the heat dissipating member and attaching the other side to the lower surface of the antenna substrate, the shielding member and the heat dissipating member can be coupled to the antenna substrate.

In general, this method is performed by a worker manually attaching punched double-sided tape or the like to predetermined positions on the shielding member or the heat dissipating member. However, in this method, the work speed and the precision of the position where the double-sided tape is bonded vary greatly depending on the worker's work skill level, making it difficult to predict the work speed or the precision of the process. When one double-sided tape is adhered to the wrong position, there is a problem in that the entire tape must be discarded.

1. Korean Patent Registration No. 10-2018-0006072 (published on January 17, 2018) 2. Korean Patent Publication No. 10-2014-0129747 (published on November 7, 2014)

The present disclosure provides a wireless charging antenna manufacturing kit in which at least one of an adhesive unit and a cushion unit is provided on a shielding and heat dissipating sheet to easily couple an antenna substrate, a shielding sheet, a heat dissipating sheet, etc. of a wireless charging antenna mounted on a mobile device, and a wireless charging antenna. It is intended to provide a manufacturing method of a charging antenna.

In addition, the present disclosure is a wireless charging antenna equipped with an injector for injecting an adhesive material or a cushion material into a reusable mold plate and an injection mold in order to improve the work speed and efficiency of the bonding process between the antenna substrate and the shielding heat dissipation sheet. It is intended to provide a manufacturing kit and a manufacturing method of a wireless charging antenna.

In addition, the present disclosure discloses that a fixing pin, a fixing frame, a first fixing hole, a second fixing hole, and a third fixing hole are provided to stably fix the position of a shielding heat dissipation sheet, a mold plate, an antenna substrate, etc. on a workbench. It is intended to provide a manufacturing method of a wireless charging antenna manufacturing kit and a wireless charging antenna formed.

The purpose of the embodiments of the present disclosure is not limited to the above-mentioned purpose, and other objects not mentioned above will be clearly understood by those skilled in the art from the description below. .

According to one aspect of the present disclosure, a manufacturing operation of a wireless charging antenna is performed, a work table equipped with a plurality of fixing pins, an antenna substrate on which an antenna coil having a winding structure embedded at a predetermined depth is formed, and A shielding layer sheet for shielding electromagnetic waves or magnetic fields is provided, and a heat dissipation layer sheet for blocking heat emitted from the antenna coil is provided, formed by combining the shielding layer sheet and the heat dissipation layer sheet and coupled to the antenna substrate A shielding heat dissipation sheet, an injector for injecting an adhesive material or a cushion material, and an injection mold into which the adhesive material or cushion material ejected from the injector is injected so that at least one of an adhesive unit and a cushion unit is formed. , A wireless charging antenna manufacturing kit including a mold plate seated on the shielding heat dissipation sheet may be provided.

In addition, according to one embodiment of the present disclosure, the injection mold includes at least one adhesive mold provided so that the adhesive material is injected to form the adhesive unit, and the cushion unit is formed by injecting the cushion material. It may include at least one cushion mold provided as much as possible.

Further, according to an embodiment of the present disclosure, the injector may include at least one adhesion injector provided to inject the adhesive material and at least one cushion injector provided to inject the cushion material. can

In addition, according to one embodiment of the present disclosure, a first fixing hole formed in the shielding and heat-dissipating sheet may be included so that the fixing pin formed in the worktable is inserted to fix the shielding heat-dissipation sheet on the worktable.

In addition, according to one embodiment of the present disclosure, the mold plate may include a second fixing hole formed in the mold plate to fix the mold plate on the shielding heat dissipation sheet through which the fixing pin is inserted.

In addition, according to one embodiment of the present disclosure, the adhesive material may be formed of a mixed solvent of isooctyl acrylate and trimethylamine methacrylimide, and the cushion material may be formed of polysilicon or urethane.

In addition, according to another aspect of the present disclosure, the steps of providing an antenna substrate on which an antenna coil having a winding structure embedded at a predetermined depth is formed, providing a mold plate, and forming at least one injection mold on the mold plate; forming a shielding and heat-dissipating sheet by using a shielding layer sheet or a heat-dissipating layer sheet and fixing the shielding and heat-dissipating sheet; placing the mold plate on the shielding and heat-dissipating sheet and fixing the mold plate; Forming at least one of an adhesive unit and a cushion unit by injecting an adhesive material or a cushion material into the injection mold, removing the mold plate, and integrating the antenna substrate and the shielding heat dissipation sheet A method of manufacturing a wireless charging antenna may be provided.

Further, according to another embodiment of the present disclosure, the forming of the injection mold may include forming at least one adhesive mold into which an adhesive material is injected or at least one cushion mold into which a cushion material is injected. can include

In addition, according to another embodiment of the present disclosure, the step of fixing the shielding and heat-dissipating sheet may include fixing the shielding and heat-dissipating sheet by inserting a fixing pin formed on a worktable into a first fixing hole formed in the shielding and heat-dissipating sheet, or The method may include fixing the shielding and heat dissipating sheet by accommodating the shielding and heat dissipating sheet in a fixing frame formed on a work table.

In addition, according to another embodiment of the present disclosure, the step of fixing the position of the mold plate may include fixing the mold plate by inserting the fixing pin into the second fixing hole formed in the mold plate or fixing the mold plate to the fixing frame. It may include the step of fixing the mold plate by receiving.

In addition, according to another embodiment of the present disclosure, the forming of at least one of the adhesive unit and the cushion unit may include adjusting the spray amount or spray pressure of the adhesive material or the cushion material to at least one of the adhesive unit and the cushion unit. A step of adjusting the thickness of may be further included.

In addition, according to another embodiment of the present disclosure, forming at least one of the adhesive unit and the cushion unit may further include drying at least one of the formed adhesive unit and the cushion unit.

In the present disclosure, by directly forming at least one of an adhesive unit and a cushion unit on a shielding heat dissipation sheet capable of shielding an electric field, a magnetic field, heat, etc., a process of bonding the shielding heat dissipation sheet to the antenna substrate can be easily and precisely performed. have.

In addition, in the present disclosure, the adhesive injector and the cushion injector can perform operations simultaneously, and a mold plate can be provided to enable reuse, thereby increasing the speed and efficiency of the operation of bonding the antenna substrate and the shielding heat dissipation sheet. can improve

In addition, in the present disclosure, a fixing pin and a fixing frame are provided on the work table, a first fixing hole is provided on the shielding heat dissipation sheet, a plurality of second fixing holes are provided on the mold plate, and a plurality of third fixing holes are provided on the antenna substrate. Accordingly, the shielding and heat dissipating sheet, the mold plate, and the antenna substrate can be seated at precise positions on the workbench, and can be stably fixed at the seated positions.

1 is a diagram illustrating a wireless charging antenna in which at least one of an adhesive unit and a cushion unit is formed according to an embodiment of the present disclosure.
2 is an exploded view illustrating a wireless charging antenna manufacturing kit in which at least one of an adhesive unit and a cushion unit is formed according to an embodiment of the present disclosure.
3 is a diagram illustrating an injector and a mold plate according to an embodiment of the present disclosure.
4a to 4b are diagrams illustrating an adhesive unit and a cushion unit according to an embodiment of the present disclosure.
5 is a diagram illustrating a process of bonding a shielding heat dissipation sheet to an antenna substrate according to an embodiment of the present disclosure.
6 is a flowchart illustrating a method of manufacturing a wireless charging antenna having at least one of an adhesive unit and a cushion unit according to another embodiment of the present disclosure.

Advantages and characteristics of the embodiments of the present disclosure, and methods of achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms, only the present embodiments make the disclosure of the present disclosure complete, and common knowledge in the art to which the present disclosure belongs. It is provided to fully inform the person who has the scope of the disclosure, and the disclosure is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

In describing the embodiments of the present disclosure, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present disclosure, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the embodiments of the present disclosure, which may vary according to the intention or custom of a user or operator. Therefore, the definition should be made based on the contents throughout this specification.

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

1 is a diagram illustrating a wireless charging antenna in which at least one of an adhesive unit and a cushion unit according to an embodiment of the present disclosure is formed, and FIG. 2 is a view illustrating at least one of an adhesive unit and a cushion unit according to an embodiment of the present disclosure. An exploded view illustrating the formed wireless charging antenna manufacturing kit, FIG. 3 is a view illustrating an injector and a mold plate according to an embodiment of the present disclosure, and FIGS. 4A to 4B are an adhesive unit according to an embodiment of the present disclosure and A diagram illustrating a cushion unit, FIG. 5 is a diagram illustrating a process of bonding a shielding heat dissipation sheet to an antenna substrate according to an embodiment of the present disclosure, and FIG. 6 is an adhesive unit and a cushion according to another embodiment of the present disclosure. It is a flow chart explaining a method of manufacturing a wireless charging antenna in which at least one of the units is formed.

1 to 4B, a wireless charging antenna manufacturing kit 200 according to an embodiment of the present disclosure includes a work table 110, an antenna substrate 120, a shielding heat dissipation sheet 130, an injector 140, a mold plate 150 and the like.

The work table 110 is a place where the manufacturing work of the wireless charging antenna 100 is performed, and the upper surface is formed in a plate shape so that the antenna substrate 120, the shielding heat dissipation sheet 130, and the mold plate 150 can be seated. It can be.

According to one embodiment of the present disclosure, in order to manufacture the wireless charging antenna 100, the shielding heat dissipation sheet 130, the mold plate 150, etc. may be sequentially seated on the work table 110, and the shielding heat dissipation sheet is seated. 130, the mold plate 150, etc. may be provided with a fixing pin 111, a fixing frame 112, etc. in the work table 110 in order to be fixed on the work table 110.

In detail, so that the adhesive unit 153 or the cushion unit 154 is accurately formed in a predetermined position on the shielding heat dissipation sheet 130, the shielding heat dissipation sheet 130 must be accurately positioned on the workbench 110 and fixed.

The fixing pins 111 according to an embodiment of the present disclosure are formed in a plurality by protruding upward from the upper surface of the work table 110, and the plurality of fixing pins 111 are formed on the shielding heat dissipation sheet 130. By being inserted into and passed through the hole 133 , the shielding heat dissipation sheet 130 may be fixed. That is, the plurality of fixing pins 111 are formed to positionally correspond to the plurality of first fixing holes 133, respectively, and the sizes of the fixing pins 111 and the first fixing holes 133 are formed to correspond to each other. , The fixing pin 111 may be inserted into the first fixing hole 133 so that the shielding heat dissipation sheet 130 may be fixed to the work table 110 .

In addition, a fixing frame 112 may be provided on the work table 110 to fix the shielding and heat dissipating sheet 130 . That is, the fixing frame 112 is formed to support all or part of the edge surface of the shielding heat dissipating sheet 130 in close contact, and the shielding heat dissipating sheet 130 is seated inside the fixing frame 112, thereby shielding the heat dissipating sheet 130. ) can be fixed.

The antenna board 120 has an antenna coil 121 formed in a winding structure buried at a certain depth, and a connector 122 is coupled to an edge portion of the antenna board 120 so that one side of the antenna coil 121 is a connector. It can be connected to the terminal (reference number omitted) of (122). In addition, the other side of the antenna coil 121 is connected to the connecting coil 123, and the connecting coil 123 crossovers the antenna coil 121 itself to a terminal (reference number omitted) of the connector 122. connected, or may extend along the lower surface of the antenna substrate 120 through the antenna substrate 120 and be connected to terminals (reference numerals omitted) of the connector 122 .

As the NFC coil 124 for near field communication (NFC), etc. is formed on the antenna substrate 120 according to an embodiment of the present disclosure, pairing between mobile devices, transportation card recognition, and coupon storage during shopping etc. are possible, and convenience of life can be provided. In addition, as the MST coil 125 for magnetic secure transmission (MST) is formed, mobile payment using a mobile device may be possible.

The third fixing hole 126 according to an embodiment of the present disclosure fixes the position of the antenna substrate 120 on the shielding heat dissipation sheet, and may be formed in at least one third fixing hole 126 on the antenna substrate 120 .

When the adhesive unit 153 or the cushion unit 154 is formed on the shielding and heat-dissipating sheet 130 and the mold plate 150 is removed, the shielding and heat-dissipating sheet 130 and the antenna substrate 120 are bonded to each other. The antenna substrate 120 may be seated on the heat dissipation sheet 130 . In this case, the shielding and heat dissipating sheet 130 is first fixed to the third fixing hole 126 of the antenna substrate 120 so that the antenna substrate 120 can be accurately seated in a seating position on the shielding and heat dissipating sheet 130. A fixing pin 111 penetrating the hole 133 may be inserted. In addition, when a plurality of third fixing holes 126 are formed, the position of the antenna substrate 120 can be fixed at a plurality of locations on the antenna substrate 120, so that the antenna substrate 120 can be stably disposed.

The shielding and heat-dissipating sheet 130 is formed by combining the shielding layer sheet 131 and the heat-dissipating layer sheet 132, and may be incorporated into the lower surface of the antenna substrate 120.

The shielding layer sheet 131 according to an embodiment of the present disclosure has an effect on peripheral components by shielding unnecessary electromagnetic signals or electromagnetic noise generated from the antenna coil 121, the NFC coil 124, the MST coil 125, and the like. It is possible to improve the characteristics of the antenna by blocking, and it can be formed of a ribbon sheet, a ferrite sheet or a polymer sheet of a nano-crystalline alloy. For example, it may be provided by bonding and stacking a ribbon sheet (not shown) of a nanocrystalline alloy formed of two layers and adhering it to a protective film (not shown).

In addition, the heat dissipation layer sheet 132 according to an embodiment of the present disclosure is to improve charging efficiency by dissipating heat generated during wireless charging to the outside, combining a cover film (not shown) with graphite (not shown) Thus, the heat dissipation layer sheet 132 may be formed.

In addition, a first fixing hole 133 is formed in the shielding and heat-dissipating sheet 130 so that the shielding and heat-dissipating sheet 130 in which the above-described shielding layer sheet 131 and the heat-dissipating layer sheet 132 are combined is fixed to the work table 110. may be provided. That is, the fixing pin 111 formed on the workbench 110 is inserted into the first fixing hole 133 and passed through, so that the shielding heat dissipation sheet 130 seated on the workbench 110 can be fixed, and the shielding heat dissipation sheet ( The adhesive unit 153 and the cushion unit 154 are formed in the 130, so that the shielding and heat-dissipating sheet 130 and the antenna substrate 120 can be bonded, and vibration is buffered to form the shielding and heat-dissipating sheet 130 and the antenna. Bonding of the substrate 120 may be stable.

The injector 140 injects an adhesive material or cushion material, and includes at least one adhesive injector 141 for injecting the adhesive material and at least one cushion injector 142 for injecting the cushion material. can include

The injector 140 according to an embodiment of the present disclosure adjusts the thickness and density of the adhesive unit 153 or the cushion unit 154 to be produced by adjusting the injection amount and injection pressure of the material to be injected. Alternatively, it may be formed to suit the function of the cushion unit 154.

For example, the adhesive unit 153 is configured to bond the shielding heat dissipation sheet 130 and the antenna substrate 120, and the bonding area of the antenna substrate 120 or the bonding material included in the bonding unit 153 is used. As the amount (that is, the density of the adhesive unit 153) increases, the adhesive strength between the antenna substrate 120 and the shielding and heat dissipating sheet 130 can be improved, so the adhesive material injected from the adhesive injector 141 By adjusting the amount of , it is possible to adjust the adhesive force of the adhesive unit 153 .

In addition, the cushion unit 154 is configured to buffer friction that may occur due to adhesion between the shielding heat dissipation sheet 130 and the antenna substrate 120, and as the thickness of the cushion unit 154 increases, the cushion unit ( Since the buffering force of 154 can be improved, the adhesive force of the cushion unit 154 can be adjusted by adjusting the amount of the cushion material injected from the cushion injector 142 .

As described above, according to the functions of the adhesive unit 153 and the cushion unit 154, the injection amount and injection amount of the adhesive material injected from the adhesive injector 141 and the cushion material injected from the cushion injector 142 A pressure lamp may be formed to suit the function of each component. In addition, since the material for the cushion is made of a compressible material, even if the thickness of the cushion unit 154 and the adhesive unit 153 are formed to be different, the shielding heat dissipation sheet 130 and the antenna substrate 120 are bonded (or compressed). In the process of being compressed, the cushion unit 154 can also be compressed, so problems due to the difference in thickness between the adhesive unit 153 and the cushion unit 154 can be prevented.

Referring to FIG. 3 , the adhesive injector 141 and the cushion injector 142 according to an embodiment of the present disclosure may perform work while moving in independent paths by separately provided drive shafts (not shown). As there is, the process for forming the adhesive unit 153 and the cushion unit 154 can be performed simultaneously, so that the speed of the process can be improved. The adhesion injector 141 and the cushion injector 142 may be driven by the same drive shaft (not shown) and may inject an adhesive material or a cushion material while moving along the same path.

The mold plate 150 is seated on the shielding and heat dissipating sheet 130, and the injection mold 151, the second fixing hole 152, the adhesive unit 153, the adhesive unit 153 and the cushion unit 154 are formed. A cushion unit 154 and the like may be included.

In the injection mold 151 according to an embodiment of the present disclosure, an adhesive material or a cushion material ejected from the injector 140 is injected to form an adhesive unit 153 or a cushion unit 154, and the adhesive unit ( 153) and a mold for the cushion unit 154. In addition, the mold plate 150 on which the injection mold 151 is formed is removed after forming the adhesive unit 153 or cushion unit 154, but will be reused to form another adhesive unit 153 or cushion unit 154. This can improve work efficiency.

The injection mold 151 is divided into an adhesive mold 151a into which an adhesive material is injected to form an adhesive unit 153, a cushion mold 151b into which a cushion material is injected so as to form a cushion unit 154, and the like. The adhesive mold 151a and the cushion mold 151b may be formed by punching out the mold plate 150 to correspond to the respective shapes of the adhesive unit 153 and the cushion unit 154.

In addition, referring to FIGS. 4A and 4B, the mold plate 150 itself is punched out to correspond to the thicknesses of the adhesive unit 153 and the cushion unit 154, thereby forming the adhesive mold 151a and the cushion mold 151b. ) may be formed with different thicknesses. For example, when a certain portion of the edge of the adhesive mold 151a is etched in the process of punching out the mold plate 150 (ie, processing and punching to generate a step difference), the adhesive mold 151a Since the thickness corresponds to the thickness of the portion excluding the etched portion, a difference in thickness may occur between the cushion mold 151b and the adhesive mold 151a where the edge portion is not etched. Accordingly, the adhesive unit 153 formed by the adhesive mold 151a and the cushion unit 154 formed by the cushion mold 151b may be formed to have different thicknesses.

The second fixing hole 152 is formed in the mold plate 150 so that the fixing pin 111 is inserted and the mold plate 150 is fixed on the shielding heat dissipation sheet 130, and the number of fixing pins 111 It may be provided in plurality so as to correspond.

When the shielding and heat-dissipating sheet 130 is seated on the work table 110 according to an embodiment of the present disclosure, the fixing pins 111 of the work table 110 are formed in the shielding and heat-dissipating sheet 130 in the first fixing hole 133 ) By penetrating, the position of the shielding heat dissipation sheet 130 may be fixed. Similarly, when the mold plate 150 is seated on the shielding heat dissipation sheet 130, the fixing pins 111 passing through the first fixing holes 133 form second fixing holes 152 formed in the mold plate 150. By passing through, the position of the mold plate 150 can be fixed.

In addition, a plurality of second fixing holes 152 may be formed so that the mold plate 150 can be stably fixed. That is, as the number of second fixing holes 152 increases, since the mold plate 150 can be fixed at a plurality of positions on the mold plate 150, the position of the mold plate 150 can be more stably fixed.

The adhesive unit 153 is formed on the shielding heat dissipation sheet 130 by the adhesive material ejected from the adhesive injector 141 .

The adhesive unit 153 according to an embodiment of the present disclosure is to adhere the shielding heat dissipation sheet 130 and the antenna substrate 120, and the adhesive material is isooctyl acrylate (94% to 96%) and trimethylamine meta A solvent mixed with krylimide (4% to 6%) may be used, and the adhesive unit 153 may also be formed of such a material. In addition, since the adhesive unit 153 is formed in plurality, it is possible to improve the adhesive force between the shielding heat dissipation sheet 130 and the antenna substrate 120. For example, when the adhesive unit 153 is formed of three tapes. , It can be used as bottom tape, wing tape, top tape, etc. according to the formed position and function.

The cushion unit 154 is formed on the shielding heat dissipation sheet 130 by a cushioning material ejected from the cushion injector 142 .

The cushion unit 154 according to an embodiment of the present disclosure is formed to alleviate or buffer friction that may occur due to adhesion between the shielding heat dissipation sheet 130 and the antenna substrate 120, and is a material for cushioning. Polysilicon or urethane may be used, and the cushion unit 154 may also be formed of such a material. In addition, at least one cushion unit 154 may be formed. For example, when the cushion unit is formed of one sponge, it may be used as a bottom sponge or the like depending on the position and function of the cushion unit.

Next, a process of manufacturing the wireless charging antenna 100 having at least one of the adhesive unit and the cushion unit configured as described above will be described.

Referring to FIG. 6 , a step of providing an antenna substrate 120 in which the antenna coil 121 is wound and buried to a predetermined depth may be performed (S210).

The antenna coil 121 is installed in a spiral wound structure on the antenna substrate 120 according to another embodiment of the present disclosure, and in particular, the antenna coil 121 is embedded in the antenna substrate 120 at a certain depth (that is, , It is possible to reduce the thickness of the wireless charging antenna 100 as it is embedded (embedding). In addition, one side of the antenna coil 121 may be coupled to a terminal (reference number omitted) of the connector 122 coupled to the antenna board 120, and the other side of the antenna coil 121 may be connected to the connecting coil 123. . The connecting coil 123 coupled to the other side of the antenna coil 121 crossovers the antenna coil 121 and is coupled to a terminal (reference number omitted) of the connector 122 or penetrates the antenna substrate 120. Thus, it may be extended in close contact with the lower surface of the antenna substrate 120 and coupled to a terminal (reference numeral omitted) of the connector 1220.

In addition, the antenna substrate 120 is provided with an NFC coil 124 for near field communication (NFC), etc., so that pairing between mobile devices, transportation card recognition, coupon storage during shopping, etc. may be possible, and MST ( As the MST coil 125 for magnetic secure transmission, etc. is formed, mobile payment using a mobile device may be possible.

Next, a step of providing the mold plate 150 and forming at least one injection mold 151 on the mold plate 150 may be performed (S220).

Referring to (a) of FIG. 5 , the injection mold 151 according to another embodiment of the present disclosure includes at least one adhesive mold 151a into which an adhesive material is injected or at least one cushion into which a cushion material is injected. It may be formed as a mold for bonding (151b), and the number and shape of the bonding mold (151a) and the cushion mold (151b) are formed to correspond to the number, shape, etc. of each of the bonding unit 153 and the cushion unit 154. It can be. In addition, the positions of the adhesive mold 151a and the cushion mold 151b may be determined so that the adhesive unit 153 and the cushion unit 154 may be formed at precise locations on the shielding and heat dissipating sheet 130 .

In addition, referring to FIGS. 4A and 4B, in the process of punching out the mold plate 150 in the shape of the adhesive unit 153 and the cushion unit 154, an adhesive mold 151a or a cushion mold 151b is formed. ) thickness can be adjusted. In detail, the thickness of the adhesive mold 151a or the cushion mold 151b can be adjusted by processing the edges of the adhesive mold 151a or the cushion mold 151b to have a step difference during the punching process. Accordingly, the thickness (or height) of the adhesive unit 153 or the cushion unit 154 may be adjusted by injecting an adhesive material or a cushion material as high as the height at which the step is generated.

Next, a step of forming the shielding and heat-dissipating sheet 130 by providing the shielding layer sheet 131 or the heat-dissipating layer sheet 132 and fixing the shielding and heat-dissipating sheet 130 to the workbench 110 may be performed ( S230).

The shielding layer sheet 131 according to another embodiment of the present disclosure shields electromagnetic waves and magnetic fields generated from the antenna coil 121, the NFC coil 124, and the MST coil 125 embedded in the antenna substrate 120. It can block its influence on peripheral components, and in addition, the heat dissipation layer sheet 132 according to another embodiment of the present disclosure is to improve charging efficiency by emitting heat generated during wireless charging to the outside, graphite The heat dissipation layer sheet 132 may be formed by bonding a cover film (not shown) to (not shown).

The above-described shielding layer sheet 131 and the heat dissipating layer sheet 132 may be provided with a shielding heat dissipating sheet 130 by bonding (or laminating) the heat dissipating layer sheet 132 using an adhesive or the like. That is, as the shielding layer sheet 131 is bonded to the upper surface of the heat dissipating layer sheet 132 , the shielding layer sheet 131 may be positioned between the heat dissipating layer sheet 132 and the antenna substrate 120 .

Also, a step of fixing the shielding heat dissipation sheet 130 to the work table 110 may be performed.

In order to form the adhesive unit 153 and the cushion unit 154 at the correct positions on the shielding and heat-dissipating sheet 130 according to another embodiment of the present disclosure, the shielding and heat-dissipating sheet 130 may be fixed to the work table 110 first. have. The position of the shielding and heat dissipating sheet 130 on the work table 110 can be fixed by inserting the fixing pin 111 provided in the work table 110 into the first fixing hole 133 of the shielding and heat dissipating sheet 130 and penetrating therethrough. In addition, when a plurality of fixing pins 111 are formed, each fixing pin 111 is inserted into the positionally corresponding first fixing hole 133, so that the shielding heat dissipation sheet 130 is stably positioned in an accurate position. can be fixed as

In addition, the process of providing the shielding heat dissipation sheet 130 and fixing it to the work table 110 is not limited to the above-described process sequence. That is, since the shielding layer sheet 131 is bonded to the lower surface of the heat dissipating layer sheet 132, after the shielding and heat dissipating sheet 130 is provided, it can be fixed to the work table 110, and the work table 110 first dissipates heat. After fixing the layer sheet 132 , the shielding layer sheet 131 may be bonded to the upper surface of the heat dissipating layer sheet 132 to provide the shielding heat dissipating sheet 130 .

In addition, according to another embodiment of the present disclosure, step S220 (ie, the process of forming the injection mold 151 in the mold plate 150) and step S230 (ie, forming the shielding heat dissipation sheet 130 and shielding the heat dissipation sheet ( 130) to the work table 110), the process sequence is not limited to the above, and step S230 may be performed first, step S220 may be performed, and steps S220 and step S230 may be performed simultaneously. have.

Next, a process of seating the mold plate 150 on the shielding heat dissipation sheet 130 and fixing the mold plate 150 may be performed (S240).

The mold plate 150 may be fixed so that the adhesive unit 153 or the cushion unit 154 according to another embodiment of the present disclosure may be accurately formed at a predetermined position on the shielding heat dissipation sheet 130 . The fixing pin 111 penetrating the first fixing hole 133 is inserted into the second fixing hole 152 formed in the mold plate 150, so that the shielding heat dissipation sheet 130 and the mold plate ( 150) may be seated in the order. In addition, when a plurality of fixing pins 111 are formed, each fixing pin 111 is inserted into each second fixing hole 152 corresponding to the position, so that the mold plate 150 is positioned in an accurate position. and can be stably fixed.

Next, a step of forming the adhesive unit 153 or the cushion unit 154 by injecting an adhesive material or a cushion material into the injection mold 151 may be performed (S250).

Referring to (b) of FIG. 5 , the injection mold 151 according to another embodiment of the present disclosure may include an adhesion mold 151a and a cushion mold 151b, and may include an adhesion mold 151a. The adhesive unit 153 may be formed by injecting an adhesive material into the cushioning mold 151b, and the cushion unit 154 may be formed by injecting a cushioning material into the cushion mold 151b.

In the conventional case, a method of punching out a double-sided tape (for adhesion) or a sponge (for cushion) and adhering the double-sided tape or sponge to a predetermined location such as a shielding sheet, or a method according to an embodiment of the present disclosure By directly forming the adhesive unit 153 and the cushion unit 154 on the heat dissipation sheet 130, the adhesive unit 153 is formed by the adhesive mold 151a and the cushion mold 151b formed on the mold plate 150. , the cushion unit 154 may be formed in an accurate position on the shielding and heat dissipating sheet 130 .

In addition, the thickness of the adhesive unit 153 or the cushion unit 154 according to another embodiment of the present disclosure may be determined by adjusting the spray amount and spray pressure of the sprayed adhesive or cushion material. The adhesive unit 153 functions to adhere the shielding heat dissipation sheet 130 and the antenna substrate 120, and the cushion unit 154 functions as a buffer between the shielding heat dissipation sheet 130 and the antenna substrate 120. In this case, since the function and purpose are different, the formed thickness may also be different. In this way, the adhesive material injected from the adhesive injector 141 and the cushion material injected from the cushion injector 142 can be formed to have different thicknesses between the adhesive unit 153 and the cushion unit 154. It is possible to form different thicknesses by controlling the spraying amount of the .

In addition, depending on the density of the adhesive unit 153 and the cushion unit 154, the adhesive strength of the adhesive unit 153, the buffering power of the cushion unit 154, etc. may be increased or decreased. Density of the adhesive unit 153 and the cushion unit 154 may be adjusted by adjusting the injection pressure of the material. That is, as the density of the adhesive material increases, the amount of the adhesive material per area of the antenna substrate 120 may increase, so that the adhesive force between the adhesive unit 153 and the antenna substrate 120 may be improved, and the cushion As the density of the cushioning material increases, the amount of the cushioning material per unit volume of the cushioning unit 154 may increase, so that the cushioning force of the cushioning unit 154 with respect to the antenna substrate 120 may be improved.

In addition, while forming the adhesive unit 153 or cushion unit 154, a process of drying the formed adhesive unit 153 or cushion unit 154 may be included.

Next, a step of removing the mold plate 150 and integrating the antenna substrate 120 and the shielding heat dissipation sheet 130 may be performed (S260).

5(c) and 5(d) , after the adhesive unit 153 or the cushion unit 154 according to another embodiment of the present disclosure is formed, the mold plate ( 150) is removed and the shielding and heat-dissipating sheet 130 is directly coupled to the lower surface of the antenna substrate 120, so that the antenna substrate 120 and the shielding and heat-dissipating sheet 130 may be integrated. Particularly, by performing post-processing such as processing a part of the adhesive unit 153 or cushion unit 154 while removing the mold plate 150, some flakes of the adhesive unit 153 or cushion unit 154 are shielded and dissipated. Dispersion to the sheet 130 can be prevented.

When the third fixing hole 126 is provided in the antenna substrate 120, the fixing pin 111 penetrates the third fixing hole 126, so that the antenna substrate 120 is formed on the shielding heat dissipation sheet 130. It can be seated accurately.

In addition, the third fixing hole 126 is not provided in the antenna substrate 120, and protrudes through the first fixing hole 133 in the process of coupling the antenna substrate 120 and the shielding heat dissipation sheet 130. If there is an obstacle in the coupling between the antenna substrate 120 and the shielding and heat dissipating sheet 130 due to the fixing pin 111 therein, the shielding and heat dissipating sheet 130 from which the mold plate 150 is removed is separated from the workbench 110 and the carrier After transporting to another place by using (not shown), a process of integrating the shielding heat dissipation sheet 130 and the antenna substrate 120 may be performed.

In this way, when the antenna substrate 120 is seated on the shielding and heat-dissipating sheet 130, the antenna substrate 120 and the shielding and heat-dissipating sheet 130 are pressed with a predetermined pressure, so that the antenna substrate 120 and the shielding and heat-dissipating sheet 130 It can be easily done by bonding, and the pressing time can be set in various ways according to the material of the bonding unit 153.

In the above description, various embodiments of the present disclosure have been presented and described, but the present disclosure is not necessarily limited thereto. It will be readily apparent that branch substitutions, modifications and alterations are possible.

100: wireless charging antenna 110: work table
111: fixing pin 112: fixing frame
120: antenna substrate 121: antenna coil
122: connector 123: connecting coil
124: NFC coil 125: MST coil
126: third fixing hole 130: shielding heat dissipation sheet
131: shielding layer sheet 132: heat radiation layer sheet
133: first fixing hole 140: injector
141: adhesive injector 142: cushion injector
150: mold plate 151: injection mold
151a: mold for adhesion 151b: mold for cushion
152: second fixing hole 153: adhesive unit
154: cushion unit 200: wireless charging antenna manufacturing kit

Claims (12)

The manufacturing work of the wireless charging antenna is performed, and a work table equipped with a plurality of fixing pins;
An antenna substrate on which an antenna coil having a winding structure buried at a predetermined depth is formed;
A shielding layer sheet for shielding electromagnetic waves or magnetic fields generated from the antenna coil is provided, and a heat dissipation layer sheet for blocking heat emitted from the antenna coil is provided, and the shielding layer sheet and the heat dissipation layer sheet are combined to form, A shielding heat dissipation sheet coupled to the antenna substrate;
An injector for injecting an adhesive material or a cushion material;
An injection mold into which the adhesive material or the cushion material ejected from the injector is injected so that at least one of an adhesive unit and a cushion unit is formed, and the mold plate is seated on the shielding heat dissipation sheet.
A wireless charging antenna manufacturing kit comprising a. According to claim 1,
The injection mold,
At least one adhesive mold provided so that the adhesive material is injected to form the adhesive unit, and at least one cushion mold provided so that the cushion unit is formed by injecting the cushion material.
A wireless charging antenna manufacturing kit comprising a. According to claim 2,
The injector is
At least one adhesion injector provided to inject the adhesive material, and at least one cushion injector provided to inject the cushion material
A wireless charging antenna manufacturing kit comprising a. According to claim 3,
A first fixing hole formed in the shielding and heat-dissipating sheet so that the fixing pin formed in the worktable is inserted and the shielding and heat-dissipating sheet is fixed on the worktable
A wireless charging antenna manufacturing kit comprising a. According to claim 4,
A second fixing hole formed in the mold plate so that the fixing pin is inserted to fix the mold plate on the shielding heat dissipation sheet
A wireless charging antenna manufacturing kit comprising a. According to claim 5,
The adhesive material is formed of a mixed solvent of isooctyl acrylate and trimethylamine methacrylimide, and the cushion material is formed of polysilicon or urethane.
Wireless charging antenna manufacturing kit. providing an antenna substrate on which an antenna coil having a winding structure buried at a predetermined depth is formed;
providing a mold plate and forming at least one injection mold on the mold plate;
Forming a shielding and heat-dissipating sheet by using a shielding layer sheet or a heat-dissipating layer sheet, and fixing the shielding and heat-dissipating sheet;
seating the mold plate on the shielding heat dissipation sheet and fixing the mold plate;
Forming at least one of an adhesive unit and a cushion unit by injecting an adhesive material or a cushion material into the injection mold;
Removing the mold plate and integrating the antenna substrate and the shielding heat dissipation sheet
Method of manufacturing a wireless charging antenna comprising a. According to claim 7,
Forming the injection mold,
Forming at least one adhesive mold into which an adhesive material is injected or at least one cushion mold into which a cushion material is injected
Method of manufacturing a wireless charging antenna comprising a. According to claim 8,
The step of fixing the shielding heat dissipation sheet,
The shielding and heat-dissipating sheet is fixed by inserting a fixing pin formed on a work table into a first fixing hole formed in the shielding and heat-dissipating sheet;
fixing the shielding and heat dissipating sheet by accommodating the shielding and heat dissipating sheet in a fixing frame formed on the work table;
Method of manufacturing a wireless charging antenna comprising a. According to claim 9,
The step of fixing the position of the mold plate,
Fixing the mold plate by inserting the fixing pin into the second fixing hole formed in the mold plate, or
Fixing the mold plate by accommodating the mold plate in the fixing frame
Method of manufacturing a wireless charging antenna comprising a. According to claim 10,
Forming at least one of the adhesive unit and the cushion unit,
Adjusting the thickness of at least one of the adhesive unit and the cushion unit by adjusting the injection amount or injection pressure of an adhesive material or a cushion material
Method of manufacturing a wireless charging antenna further comprising a. According to claim 11,
Forming at least one of the adhesive unit and the cushion unit,
Drying at least one of the formed adhesive unit and cushion unit
Method of manufacturing a wireless charging antenna further comprising a.

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