Patent Description:
A wireless charging device can convert electric energy in an electromagnetic wave form, to wirelessly forward power to an external device without a transmission line. A wireless charging scheme can be various such as a magnetic induction scheme, a self resonance scheme or the like.

At wireless charging, a heat can be generated due to efficiency deterioration, because arrangement alignment is not made between internal parts of the wireless charging device. The heat generated in the wireless charging device can be cooled in an air forced convection scheme using a fan. <CIT> discloses a wireless charging device.

In a cooling of a forced convection scheme using a fan of a wireless charging device, there can be limits in a cooling efficiency, because a channel of air introduced into the wireless charging device is restrictive. In response to the cooling of the wireless charging device not being made smoothly, it can bring about limitation in a usability.

Various embodiments of the present disclosure may provide a wireless charging device capable of decreasing heat generation that occurs at wireless charging. Also, various embodiments of the present disclosure may provide a wireless charging device capable of improving the cooling efficiency.

Aspects of the invention are disclosed in independent apparatus claim <NUM>.

Various embodiments of the present disclosure may provide a wireless charging device capable of decreasing heat generation that occurs at wireless charging. Also, various embodiments of the present disclosure may provide a wireless charging device capable of securing air channels in various directions, to improve a cooling efficiency.

Various embodiments of the present disclosure are mentioned below with reference to the accompanying drawings. However, these do not intend to limit the present disclosure to a specific embodiment form, and it should be understood to include various modifications, equivalents and/or alternatives of various embodiments of the present disclosure. In relation to a description of the drawing, like reference symbols may be used for like components.

In the present document, the expressions "have", "may have", "comprise", "may comprise", etc. indicate the existence of a corresponding feature (e.g., a numeral value, a function, an operation, or a component such as a part, etc.), and do not exclude the existence of an additional feature.

In the present document, the expression "A or B", "at least one of A or/and B", "one or more of A or/and B" or the like may include all available combinations of items enumerated together. For example, "A or B", "at least one of A and B", or "at least one of A or B" may denote all of the cases of (<NUM>) including at least one A, (<NUM>) including at least one B, or (<NUM>) including all of at least one A and at least one B.

The expressions "a first", "a second", "the first" "the second" or the like used in various embodiments may use various components irrespective of order and/or importance, and does not limit the corresponding components. The expressions may be used to distinguish one component from another component. For example, a first user device and a second user device may represent mutually different user devices, regardless of order or importance. For example, a first component may be named a second component without departing from the scope of right of the present disclosure. Likely, even a second component may be named interchangeably with a first component.

When it is mentioned that any component (e.g., a first component) is "(operatively or communicatively) coupled with/to" another component (e.g., a second component) or is "connected to", it should be understood that the any component may be directly coupled to the another component, or be coupled through a further component (e.g., a third component). On the other hand, when it is mentioned that some component (e.g., a first component) is "directly coupled to" another component (e.g., a second component) or is "directly connected to", it may be understood that a further component (e.g., a third component) does not exist between the some component and the another component.

The expression "configured (or set) to~" used in the present document may be used interchangeably with, for example, "suitable for~", "having the capacity to~", "designed to~", "adapted to~", "made to~" or "capable of~" according to context. The term "configured (or set) to~" may not necessarily mean only "specifically designed to" in hardware. Instead, in some context, the expression "device configured to~" may mean that the device is "capable of ~" together with other devices or parts. For example, the phrase "processor configured (or set) to perform A, B, and C" may mean an exclusive processor (e.g., embedded processor) for performing a corresponding operation, or a generic-purpose processor (e.g., a CPU or an application processor) capable of performing corresponding operations by executing one or more software programs stored in a memory device.

The terms used in the present document are used to just explain a specific embodiment, and may not intend to limit the scope of another embodiment. The expression of a singular form may include the expression of a plural form unless otherwise dictating clearly in context. All the terms used herein including the technological or scientific terms may have the same meanings as those generally understood by a person having ordinary skill in the art of the present disclosure. The terms defined in a generally used dictionary may be construed as having the same or similar meanings as the contextual meanings of a related technology, and are not construed as having ideal or excessively formal meanings unless defined clearly in the present document. According to cases, even the term defined in the present document may not be construed as excluding embodiments of the present document.

Various embodiments of the present disclosure are explained below in more detail with reference to the drawings.

<FIG> illustrates a perspective view of a wireless charging device of various embodiments of the present disclosure. <FIG> illustrates a perspective view of the wireless charging device of various embodiments of the present disclosure. <FIG> illustrates a perspective view of the wireless charging device of various embodiments of the present disclosure.

According to various embodiments, as illustrated in <FIG>, <FIG> and <FIG>, the wireless charging device <NUM> may include a first housing <NUM>, a pad <NUM>, a second housing <NUM>, a third housing <NUM>, a guide <NUM> and a support unit <NUM>. The first housing <NUM>, the pad <NUM>, the second housing <NUM>, the third housing <NUM>, the guide <NUM> and the support unit <NUM> may form an appearance of the wireless charging device <NUM>. The wireless charging device <NUM> may perform wireless charging for an external device needing charging. In an arrow direction illustrated in <FIG>, the external device needing the charging may be safely mounted in the wireless charging device <NUM>.

According to various embodiments, the first housing <NUM> may protect parts of the wireless charging device <NUM>. The first housing <NUM> may form a front surface of the wireless charging device <NUM>. The first housing <NUM> may be a support body (support structure) of injection materials which forms an appearance design of the wireless charging device <NUM>. A surface of the first housing <NUM> may include a plurality of holes 103a. Through the holes 103a, an air channel may be formed in a direction of the wireless charging device <NUM>. This will be described later in detail.

According to various embodiments, the first housing <NUM> may be configured to safely mount an external device for receiving power applied. For example, the first housing <NUM> may include a safe mounting unit 103b that is configured to safely mount the external device. The safe mounting unit 103b may be a construction of having a given area and protruding in a direction of the first housing <NUM>. The wireless charging device <NUM> may safely mount the external device in the safe mounting unit 103b, thereby performing wireless charging for the external device.

According to various embodiments, the pad <NUM> may be mounted in the first housing <NUM>. For example, the first housing <NUM> may include a groove, and the pad <NUM> may be mounted in this groove. The pad <NUM> may be arranged such that an outer surface of the pad <NUM> is exposed at an upper surface of the first housing <NUM>. The pad <NUM> may be configured to generate a frictional force with the external device placed in the first housing <NUM>. For example, the pad <NUM> may include rubber materials, thereby generating a frictional force with the external device, to prevent the movement of the external device. The pad <NUM> may be configured, for example, in a ring shape.

According to various embodiments, the second housing <NUM> may protect parts of the wireless charging device <NUM>. The second housing <NUM> may form a rear surface of the wireless charging device <NUM>. The second housing <NUM> may be a support body (support structure) of injection materials that forms an appearance design of the wireless charging device <NUM>. A surface of the second housing <NUM> may include a plurality of holes 109a. Through the holes 109a, an air channel may be formed in a direction of the wireless charging device <NUM>.

According to various embodiments, the third housing <NUM> may be arranged between the first housing <NUM> and the second housing <NUM>. The third housing <NUM> may protect parts of the wireless charging device <NUM>. The third housing <NUM> may form a side surface of the wireless charging device <NUM>. The third housing <NUM> may be a support body (support structure) of injection materials that forms an appearance design of the wireless charging device <NUM>. A surface of the third housing <NUM> may include a plurality of holes 105a. Through the holes 105a, an air channel may be formed in a direction of the wireless charging device <NUM>.

According to various embodiments, the guide <NUM> may be configured to be movable at a side surface of the wireless charging device <NUM>. The guide <NUM> may move in a horizontal direction to fit the size of the external device. The guide <NUM> may get distant from the first housing <NUM> or get close. The guide <NUM> may fix the external device that is safely mounted in the first housing <NUM>. The guide <NUM> may apply a pressure to the external device, to prevent the movement of the external device.

According to various embodiments, the support unit <NUM> may form a rear surface of the wireless charging device <NUM>. The support unit <NUM> may get in contact with an installation surface that is to install the wireless charging device <NUM>. The support unit <NUM> may include injection materials, metals or the like that form an appearance design of the wireless charging device <NUM>. A surface of the support unit <NUM> may be flat to be fixed to the installation surface. In response to the wireless charging device <NUM> being installed in a vehicle, wireless charging may be smoothly performed for the external device through the support unit <NUM> in spite of the occurrence of vibration or shaking during vehicle running.

<FIG> illustrates an example view showing a state in which an external device is mounted in a wireless charging device of various embodiments of the present disclosure. <FIG> illustrates an example view showing the state in which the external device is mounted in the wireless charging device of various embodiments of the present disclosure. <FIG> illustrates an example view showing the state in which the external device is mounted in the wireless charging device of various embodiments of the present disclosure. <FIG> illustrates an example view showing a state in which the external device is mounted in the wireless charging device of various embodiments of the present disclosure. <FIG> illustrates an example view showing the state in which the external device is mounted in the wireless charging device of various embodiments of the present disclosure.

According to various embodiments, as illustrated in <FIG>, <FIG>, <FIG>, <FIG> and <FIG>, the external device <NUM> may be mounted in the wireless charging device <NUM>. As explained earlier, the external device <NUM> may be safely mounted in the first housing <NUM> of the wireless charging device <NUM>. For example, the external device <NUM> may be installed on the safe mounting unit 103b of the first housing <NUM>.

In various embodiments, as illustrated in <FIG> and <FIG>, the guide <NUM> of the wireless charging device <NUM> may secure a space for installing the external device <NUM> through movement. The guide <NUM> may move in the horizontal direction, thereby forming the space such that the external device <NUM> may be safely mounted in the first housing <NUM>. The guide <NUM> may move in the direction of getting distant from the first housing <NUM>, to secure the space.

In various embodiments, as illustrated in <FIG> and <FIG>, the guide <NUM> may fix the external device <NUM> through movement. The guide <NUM> may move in the horizontal direction, thereby getting in contact with the external device <NUM>. The guide <NUM> may move in the direction of getting close to the first housing <NUM>, to apply a pressure to the external device <NUM>. The guide <NUM> may prevent the movement of the external device <NUM> through a contact with the external device <NUM>. In response to the wireless charging device <NUM> being installed in a vehicle, wireless charging may be smoothly performed for the external device <NUM> through the guide <NUM> in spite of the occurrence of vibration or shaking during vehicle running.

<FIG> and <FIG> illustrate exploded perspective views of a wireless charging device of various embodiments.

According to various embodiments, as illustrated in <FIG> and <FIG>, the wireless charging device <NUM> may include a pad <NUM>, a first housing <NUM>, a third housing <NUM>, a coil unit <NUM>, a shielding member <NUM>, a bracket <NUM>, a fan <NUM>, a printed board assembly (PBA) <NUM>, a first plate <NUM>, a guide <NUM>, a second plate <NUM>, a gear <NUM>, a mount <NUM>, a second housing <NUM> and the like. Below, a detailed description of a construction being the same as or similar with the above-described construction may be omitted.

Moreover, the pad <NUM> includes at least one protrusion 201a in a surface of the pad <NUM>. The protrusion 201a is configured to protrude from the surface of the pad <NUM>. The protrusion 201a may be formed to protrude in a first direction (D1) of the drawing from the pad <NUM>. In response to an external device (drawing symbol <NUM> of <FIG>) being safely mounted in the first housing <NUM>, the protrusion 201a may provide a space between the external device <NUM> and the first housing <NUM>. The protrusion 201a may be such that the external device <NUM> may be installed at a given interval apart from the first housing <NUM>. By the protrusion 201a, the space is provided between the external device <NUM> and the first housing <NUM> and, through this space, air is introduced into the hole 203a of the first housing <NUM>. Through the protrusion 201a, air may be introduced in a second direction (D2) of the drawing in the wireless charging device <NUM>. Through the protrusion 201a, an air channel may be formed in the second direction (D2).

The protrusion 201a may have a diameter of, for example, <NUM> to <NUM>. In response to the protrusion 201a being included in plural in the pad <NUM>, the plurality of protrusions 201a may be arranged at a given interval apart. The protrusion 201a may be formed in various numbers and various shapes.

According to various embodiments, the first housing <NUM> may include a first surface 203b facing the first direction (D1), and a second surface 203c facing the second direction (D2) being opposite to the first direction (D1). The first housing <NUM> may include at least one hole 203a which passes through the first surface 203b and the second surface 203c. The hole 203a may form a passage through which external air may be introduced into the wireless charging device <NUM>. The hole 203a may form an air channel in the second direction (D2). That is, the air introduced to a front surface of the wireless charging device <NUM> through the hole 203a may be forwarded to the fan <NUM>.

According to various embodiments, the third housing <NUM> may be arranged on the second surface 203c of the first housing <NUM>. The third housing <NUM> may be arranged on the second surface 203c of the first housing <NUM> in the second direction (D2). The third housing <NUM> may be arranged between the first housing <NUM> and the second housing <NUM>.

According to various embodiments, the third housing <NUM> may include a first surface 205d facing the first direction (D1), and a second surface 205e facing the second direction (D2). The third housing <NUM> may include the hole 205a which passes through the first surface 205d and the second surface 205e. The hole 205a may be provided in the first direction (D1) or the second direction (D2). The hole 205a may form a passage through which external air may be introduced into the wireless charging device <NUM>. The hole 205a may form a passage of air which is introduced from the hole 203a of the first housing <NUM>. The hole 205a may form an air channel in the second direction (D2). That is, the air introduced to the front surface of the wireless charging device <NUM> through the hole 205a may be forwarded to the fan <NUM>.

According to various embodiments, the third housing <NUM> may include a third surface 205f facing a third direction (D3) which intersects with the first direction (D1) and the second direction (D2). The third housing <NUM> may include a fourth surface <NUM> facing a fourth direction (D4) which intersects with the first direction (D1), the second direction (D2) and the third direction (D3).

According to various embodiments, the third housing <NUM> may include at least one hole 205b arranged in the third surface 205f. The hole 205b may be provided in the third direction (D3). The hole 205b may form a passage through which external air may be introduced into the wireless charging device <NUM>. The hole 205b may form an air channel in the third direction (D3). That is, the air introduced to a side surface of the wireless charging device <NUM> through the hole 205b may be forwarded to the fan <NUM>.

According to various embodiments, the third housing <NUM> may include at least one hole 205c arranged in the fourth surface <NUM>. The hole 205c may be provided in the fourth direction (D4). The hole 205c may form a passage through which air introduced into the wireless charging device <NUM> is discharged. For example, the air introduced through the air channel formed in the first direction (D1), the second direction (D2) or the third direction (D3) may be discharged out through the hole 205c. The air introduced into the wireless charging device <NUM> may be circulated through the fan <NUM> and then be discharged through the hole 205c together with a heat generated in the coil unit <NUM>, the printed board assembly <NUM> or the like.

According to various embodiments, the coil unit <NUM> may be arranged between the first housing <NUM> and the second housing <NUM>. The coil unit <NUM> may be configured to transmit power to the external device. The coil unit <NUM> may be a transmission coil. The coil unit <NUM> may forward power to a reception coil of the external device by using an electromagnetic induction phenomenon. The coil unit <NUM> may be a circular shape, a rectangular shape or a ring shape. The coil unit <NUM> may generate a heat at working.

The shielding member <NUM> is arranged adjacent to the coil unit <NUM>. The shielding member <NUM> may be arranged beneath the coil unit <NUM>. The shielding member <NUM> may protect other electrical objects (for example, the fan <NUM>, the printed board assembly <NUM> or the like) from an electromagnetic field which is generated in response to the coil unit <NUM> transmitting power, and enhance the efficiency of wireless power transmission. The shielding member <NUM> may be formed of, for example, a ferrite sheet.

According to various embodiments, the shielding member <NUM> may include a hole 209a. The hole 209a may form an air channel together with the hole 203a of the first housing <NUM>, the hole 205a of the third housing or the hole 205b of the third housing. That is, the hole 209a may form the air channel in the second direction (D2). That is, air introduced to the front surface of the wireless charging device <NUM> through the hole 209a may be forwarded to the fan <NUM>.

According to various embodiments, the bracket <NUM> may support the coil unit <NUM> and the shielding member <NUM>. According to various embodiments, the bracket <NUM> may support the fan <NUM>. The bracket <NUM> may be an internal injection structure capable of supporting various structures. The bracket <NUM> may include a hole 211a which is provided in the first direction (D1) or the second direction (D2). The bracket <NUM> may include a hole 211b which is provided in the fourth direction (D4). Through the holes 211a and 211b of the bracket <NUM>, a flow of air through the fan <NUM> may be led. For example, through the hole 211a of the bracket <NUM>, an air channel may be formed in the second direction (D2). That is, the air introduced to the front surface of the wireless charging device <NUM> through the hole 211a may be forwarded to the fan <NUM>.

According to various embodiments, the hole 211b of the bracket <NUM> may form a passage through which air introduced into the wireless charging device <NUM> is discharged. For example, the hole 211b may discharge out the air introduced through the air channel formed in the first direction (D1), the second direction (D2) or the third direction (D3). The air introduced into the wireless charging device <NUM> may be circulated through the fan <NUM> and then be discharged out through the hole 211b together with a heat generated in the coil unit <NUM>, the printed board assembly <NUM> or the like.

According to various embodiments, the fan <NUM> may be arranged between the coil unit <NUM> and the printed board assembly <NUM>. The fan <NUM> may be configured to rotate. The fan <NUM> may make a flow of air between the coil unit <NUM> and the printed board assembly <NUM>. The fan <NUM> may generate the circulation of air. For example, the fan <NUM> may be an airflow fan.

According to various embodiments, the fan <NUM> may be installed to face the coil unit <NUM> in an up/down laminate structure. The fan <NUM> may be mounted to face the printed board assembly <NUM> in an up/down laminate structure. The fan <NUM> may be arranged to be at a given interval with each of the shielding member <NUM> and the printed board assembly <NUM>. Through this interval, an air movement path may be formed. Through this path, air including a heat generated by the coil unit <NUM> or the printed board assembly <NUM> may be discharged out by the fan <NUM>.

According to various embodiments, the printed board assembly <NUM> may be arranged to face at a given interval with the fan <NUM>. The printed board assembly <NUM> may include a power supply device and a wireless charging circuit. The power supply device of various embodiments may supply a power source to the wireless charging circuit. The wireless charging circuit of various embodiments may include at least some of an I/F, a control circuit, an I/F control, a DC-AC inverter. The I/F of various embodiments may be a connection path connected with the power supply device. The control circuit of various embodiments may control wireless charging. The I/F control of various embodiments may be a communication I/F for checking support or non-support of voltage change of the power supply device. The DC-AC inverter of various embodiments may switch and change DC power of the power supply device into AC power.

According to various embodiments, the first plate <NUM> may be arranged in the second direction (D2) from the printed board assembly <NUM>. The first plate <NUM> may support the printed board assembly <NUM>. The first plate <NUM> may be a support body (support structure) of injection materials.

According to various embodiments, the guide <NUM> may be arranged between the first housing <NUM> and the second housing <NUM>. The guide <NUM> may include injection materials. The guide <NUM> may include a guide arm 219a which is extended in the first direction (D1). The guide arm 219a may fix the external device. The guide arm 219a may get in contact with the external device.

According to various embodiments, the guide <NUM> may be movable in the third direction (D3). For example, the guide <NUM> may include a first guide <NUM>-<NUM> and a second guide <NUM>-<NUM>. The first guide <NUM>-<NUM> and the second guide <NUM>-<NUM> may be each configured to be movable in the third direction (D3). The first guide <NUM>-<NUM> and the second guide <NUM>-<NUM> may move to get close to each other. Or the first guide <NUM>-<NUM> and the second guide <NUM>-<NUM> may move to get distant from each other.

According to various embodiments, the guide <NUM> may include a hole 219b. The hole 219b may form an air channel in the first direction (D1). The hole 219b may form a passage through which external air may be introduced into the wireless charging device <NUM>. The air introduced in the first direction (D1) through the hole 219b may be forwarded to the fan <NUM>. That is, the air introduced to a rear surface of the wireless charging device <NUM> through the hole 219b may be forwarded to the fan <NUM>.

According to various embodiments, the second plate <NUM> may be arranged in the second direction (D2) from the guide <NUM>. The first plate <NUM> may support the guide <NUM>. The first plate <NUM> may be a support body (support structure) of injection materials.

The gear <NUM> and the mount <NUM> may be arranged between the first housing <NUM> and the second housing <NUM>. The gear <NUM> and the mount <NUM> may be combined with the support unit <NUM> explained earlier in <FIG>. The gear <NUM> and the mount <NUM> may insert and fix the support unit <NUM>.

The second housing <NUM> may be arranged on the second surface 203c of the first housing <NUM>. The second housing <NUM> may be arranged on the second surface 203c of the first housing <NUM> in the second direction (D2). The second housing <NUM> may include at least one hole 227a. The hole 227a may form an air channel in the first direction (D1). The hole 227a may form a passage through which external air may be introduced into the wireless charging device <NUM>. That is, through the hole 227a of the second housing <NUM>, the external air may be introduced into the wireless charging device <NUM>. The air introduced through the hole 227a in the first direction (D1) may be forwarded to the fan <NUM>. That is, the air introduced to the rear surface of the wireless charging device <NUM> through the hole 227a may be forwarded to the fan <NUM>. Also, the hole 227a may form a passage which discharges out the air introduced into the wireless charging device <NUM>. The air introduced in various directions may be circulated through the fan <NUM>, thereby being discharged out through the hole 227a together with a heat generated in the coil unit <NUM>, the printed board assembly <NUM> or the like.

<FIG> and <FIG> illustrate sectional views of a wireless charging device of various embodiments. <FIG> and <FIG> illustrate sectional views viewed in the third direction (D3) in <FIG> and <FIG>.

According to various embodiments, as illustrated in <FIG> and <FIG>, the wireless charging device <NUM> may secure the air channels which are formed in various directions. For example, the wireless charging device <NUM> may secure the air channel formed in the second direction (D2). That is, as explained earlier, air may be introduced in the second direction (D2) of the wireless charging device <NUM> through the respective holes formed in the first direction (D1) or the second direction (D2) in the first housing <NUM>, the third housing <NUM>, the shielding member <NUM>, the bracket <NUM> and the like. The air introduced from the front surface of the wireless charging device <NUM> may be forwarded to the fan <NUM>.

The air introduced into the wireless charging device <NUM> may be discharged out through the hole 205c provided in the fourth direction (D4) in the third housing <NUM>. Accordingly, the air introduced in the second direction (D2) may be circulated through the fan <NUM>, thereby being discharged in the fourth direction (D4) together with a heat generated in the coil unit <NUM>, the printed board assembly <NUM> or the like. That is, through the air channel of the second direction (D2), a heat temperature of the coil unit <NUM> or the printed board assembly <NUM> may be effectively decreased, and a cooling efficiency may be improved.

According to various embodiments, the air channel may be formed in the third direction (D3) of the wireless charging device <NUM>. That is, as explained earlier, the wireless charging device <NUM> may introduce air in the third direction (D3) through the hole provided in the third direction (D3) in the third housing <NUM>. Air may be introduced from a side surface of the wireless charging device <NUM> and be forwarded to the fan <NUM>.

The air introduced into the wireless charging device <NUM> may be discharged out through the hole 205c provided in the fourth direction (D4) in the third housing <NUM>. Accordingly, air introduced in the third direction (D3) may be circulated through the fan <NUM>, thereby being discharged in the fourth direction (D4) together with a heat generated in the coil unit <NUM>, the printed board assembly <NUM> or the like. That is, through the air channel of the third direction (D3), a heat temperature of the coil unit <NUM> or the printed board assembly <NUM> may be effectively decreased, and a cooling efficiency may be improved.

According to various embodiments, the wireless charging device <NUM> may secure the air channel that is formed in the first direction (D1). That is, as explained earlier, the wireless charging device <NUM> may introduce air in the first direction (D1) through the hole that is provided in the first direction (D1) or the second direction (D2) in the second housing <NUM>. The wireless charging device <NUM> may introduce air in the first direction (D1) through the hole provided in the first direction (D1) or the second direction (D2) in the guide <NUM>. The air introduced from a rear surface of the wireless charging device <NUM> may be forwarded to the fan <NUM>.

The air introduced into the wireless charging device <NUM> may be discharged out through the hole 205c that is provided in the fourth direction (D4) in the third housing <NUM>. Accordingly, the air introduced in the first direction (D1) may be circulated through the fan <NUM>, thereby being discharged in the fourth direction (D4) together with a heat generated in the coil unit <NUM>, the printed board assembly <NUM> or the like. That is, through the air channel of the first direction (D1), a heat temperature of the coil unit <NUM> or the printed board assembly <NUM> may be effectively decreased, and a cooling efficiency may be improved.

<FIG> illustrate front views of shielding members included in a wireless charging device of various embodiments.

According to various embodiments, as illustrated in <FIG>, the shielding member <NUM> may include a plurality of holes 209a. The hole 209a may include a first diameter (R1). The first diameter (R1) of the hole 209a may, for example, be greater than or be equal to <NUM> pie (π) and be less than <NUM> pie (π). The plurality of holes 209a may be arranged at a first pitch (P1).

According to various embodiments, as illustrated in <FIG>, the shielding member <NUM> may include a plurality of holes 209a. The hole 209a may include a second diameter (R2). The second diameter (R2) may be greater than the first diameter (R1). The second diameter (R2) of the hole 209a may, for example, be greater than or be equal to <NUM> pie (π) and be less than <NUM> pie (π). The plurality of holes 209a may be arranged at a second pitch (P2). The second pitch (P2) may be greater than or be equal to the first pitch (P1).

According to various embodiments, as illustrated in <FIG>, the shielding member <NUM> may include a plurality of holes 209a. The hole 209a may include a third diameter (R3). The third diameter (R3) may be greater than the second diameter (R2). The third diameter (R3) of the hole 209a may, for example, be greater than or be equal to <NUM> pie (π) and be less than <NUM> pie (π). The plurality of holes 209a may be arranged at a third pitch (P3). The third pitch (P3) may be greater than or be equal to the second pitch (P2).

According to various embodiments, the shielding member <NUM> included in the wireless charging device <NUM> may include the plurality of holes 209a, thereby decreasing a temperature of the front surface of the wireless charging device <NUM> and a temperature of an internal part.

<FIG> illustrates a perspective view of a bracket included in a wireless charging device of various embodiments.

According to various embodiments, as illustrated in <FIG>, the bracket <NUM> may include the hole 211b provided in the fourth direction (D4). The bracket <NUM> in which the hole 211b is arranged may have a first thickness (T1). The bracket <NUM> having the hole 211b may have the first thickness (T1). The first thickness (T1) may be smaller than a thickness of the bracket <NUM> which is not adjacent to the hole 211b. A thickness of the bracket <NUM> adjacent to the hole 211b may be formed thinner than the thickness of the bracket <NUM> not adjacent, thereby securing the size of the hole 211b.

<FIG> illustrates a sectional perspective view showing an installation structure of a bracket and a fan included in a wireless charging device of various embodiments.

According to various embodiments, as illustrated in <FIG>, the bracket <NUM> may support the fan <NUM>. The fan <NUM> may be installed within the bracket <NUM>. The hole 211b of the bracket <NUM> may form a passage of discharging introduced air through the rotation of the fan <NUM>. The hole 211b may discharge out the air which is introduced through the air channels formed in various directions. The hole 211b may enable the introduced air to, after being circulated through the fan <NUM>, be discharged together with a heat generated in a wireless charging device internal part. Through the hole 211b, the introduced air may be discharged in the fourth direction (D4).

<FIG> illustrates a perspective view of a guide included in a wireless charging device of various embodiments.

According to various embodiments, as illustrated in <FIG>, the guide <NUM> may include the guide arm 219a which is extended in the first direction (D1). The guide arm 219a may fix an external device. The guide arm 219a may get in contact with the external device.

According to various embodiments, the guide <NUM> may include the hole 219b provided in the first direction (D1) or the second direction (D2). Through the hole 219b, air may be introduced in the first direction (D1) of the wireless charging device. That is, the air may be introduced from a rear surface of the wireless charging device through the hole 219b and be forwarded to the fan <NUM>. The hole 219b may have various sizes, shapes or arrangements.

<FIG> illustrates a sectional perspective view showing an installation structure of a guide included in a wireless charging device of various embodiments.

According to various embodiments, as illustrated in <FIG>, an air channel may be formed in the first direction (D1) of the wireless charging device through the hole 219b of the guide <NUM> explained earlier. Through the hole 219b of the guide <NUM>, air may be introduced from the rear surface of the wireless charging device. That is, the air may be introduced (In) in an arrow direction shown in the drawing.

<FIG> illustrates a sectional view showing an installation structure of a guide included in a wireless charging device of various embodiments.

According to various embodiments, the guide <NUM> may be configured to be movable in the third direction (D3) of the wireless charging device. The guide <NUM> may move to get distant from the first housing <NUM> or get close. The guide <NUM> may move according to the size of the external device that is safely mounted in the first housing <NUM>.

According to various embodiments, the guide <NUM> may include portions having mutually different thicknesses. For example, the guide <NUM> may include a portion having a second thickness (T2) in a portion extended in the third direction (D3), and a portion having a third thickness (T3) thicker than the second thickness (T2). In the portion extended in the third direction (D3) of the guide <NUM>, the portion close to the third housing <NUM> may have the second thickness (T2), and the portion distant from the third housing <NUM> may have the third thickness (T3). In response to the guide <NUM> being arranged to get close to the third housing <NUM> to fix the external device, a space may be provided between the portion having the second thickness (t2) thinner than the third thickness (T3) and the third housing <NUM>. Through this, air introduction through the space between the guide <NUM> and the third housing <NUM> may be made smooth.

According to various embodiments, a wireless charging device may include a first housing, which includes a first surface facing a first direction and a second surface facing a second direction opposite to the first direction, and includes at least one hole; a second housing arranged on the second surface of the first housing in the second direction; a coil unit arranged between the first housing and the second housing, and configured to transmit power to an external device; a shielding member arranged adjacent to the coil unit, and including at least one hole; and a fan arranged adjacent to the coil unit and configured to rotate.

The fan receives external air through the hole of the first housing and may receive air through the hole of the shielding member.

According to various embodiments, a pad may be further arranged on the first surface of the first housing, and the pad may include at least one protrusion protruded in the first direction.

According to various embodiments, the first housing may be configured to safely mount the external device on the first surface.

According to various embodiments, the at least one protrusion may provide a space between the first surface of the first housing and the external device.

According to various embodiments, it may further include a third housing arranged between the first housing and the second housing, and the third housing may include a first surface facing the first direction, a second surface facing the second direction, and a hole passing through the first surface and the second surface.

According to various embodiments, the third housing may include a third surface facing a third direction which intersects with the first direction and the second direction, and include at least one hole provided in the third surface.

According to various embodiments, the fan may receive external air through the at least one hole provided in the third surface.

According to various embodiments, the third housing may include a fourth surface facing a fourth direction which intersects with the first direction, the second direction and the third direction, and include at least one hole provided in the fourth surface.

According to various embodiments, the at least one hole provided in the fourth surface may form an air channel for discharging out air introduced into the wireless charging device.

According to various embodiments, it may further include a guide arranged between the first housing and the second housing, and configured to support the external device.

According to various embodiments, the guide may be configured to move in the third direction which intersects with the first direction and the second direction.

According to various embodiments, the guide may further include a guide arm extended in the first direction.

According to various embodiments, the guide may include at least one hole, and air may be introduced through the hole of the guide and be forwarded to the fan.

According to various embodiments, the guide may include at least any one of portions of different thicknesses.

According to various embodiments, a portion close to the first housing in the guide may be smaller in thickness than a portion distant from the first housing.

According to various embodiments, it may further include a bracket which supports the coil unit and the shielding member, and the bracket may include a hole provided in the second direction.

According to various embodiments, the fan may receive external air through the hole provided in the second direction in the bracket.

According to various embodiments, the bracket may include a hole provided in the fourth direction.

According to various embodiments, the hole provided in the fourth direction may form an air channel for discharging out air introduced into the wireless charging device.

Claim 1:
A wireless charging device (<NUM>) arranged to wirelessly forward power to an external device, comprising:
a first housing (<NUM>) forming a first surface (<NUM>) of the device and a second housing (<NUM>) forming a second surface (<NUM>) of the device, wherein at least one hole (203a) is formed in the first surface (<NUM>);
a coil unit (<NUM>) arranged between the first surface (<NUM>) and the second surface (<NUM>);
a shielding member (<NUM>) arranged between the coil unit (<NUM>) and the second surface (<NUM>); and
a fan (<NUM>) arranged adjacent the shielding member (<NUM>) wherein the fan (<NUM>) receives external air through the at least one hole (203a) of the first surface;
characterized in that protrusions (201a) are arranged on the first surface (<NUM>) to provide a space between the first surface (203b) and an external device when the external device is mounted in the wireless charging device so that air may be introduced through the at least one hole (203a) and may be forwarded to the fan (<NUM>).