CN217692713U - Wireless charger - Google Patents

Abstract

The utility model discloses a wireless charger. The wireless charger comprises a shell, a fan, a charging coil and a controller; the shell comprises a bottom shell and a face shell; the bottom shell is provided with a bottom wall and at least two air outlets penetrating through the bottom wall, the at least two air outlets are circumferentially arranged around the axis of the bottom shell, and the air outlets are arranged along the axis direction of the bottom shell; the surface shell is provided with an air inlet; the fan is positioned between the face shell and the bottom wall; the charging coil is connected to the shell; the controller is electrically connected to the fan and the charging coil to control the operation of the fan and the charging coil, and the controller is connected to the housing. From this, the air outlet sets up along the axis direction of drain pan to make the air outlet be used for just to electronic equipment, two at least air outlets set up around the axis circumference of drain pan, so that directly blow electronic equipment on the circumferential direction via the air that the air outlet flows out, can be fast for electronic equipment cooling, and then improve electronic equipment's the speed of charging.

Description

Wireless charger

Technical Field

The utility model relates to a wireless charger field particularly relates to wireless charger.

Background

The existing wireless charger adopts natural heat dissipation, or a heat sink is arranged in the wireless charger to dissipate heat through natural convection. However, the two heat dissipation methods have low heat dissipation efficiency, and cannot quickly dissipate heat of the mobile phone charged by the wireless charger, so that the temperature of the battery of the mobile phone is high, and the charging speed is low.

To this end, the present invention provides a wireless charger to at least partially solve the above problems.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

For at least partly solve above-mentioned technical problem, the utility model provides a wireless charger for electronic equipment charges, wireless charger includes:

a housing, the housing comprising:

the bottom shell is provided with a bottom wall and at least two air outlets penetrating through the bottom wall, the attaching end face of one end of the bottom wall along the axial direction of the bottom shell is used for being attached to the electronic equipment, the at least two air outlets are circumferentially arranged around the axial line of the bottom shell, and the air outlets are arranged along the axial direction of the bottom shell so that the air outlets are used for facing the electronic equipment; and

the face shell is positioned on one side of the bottom shell, which is far away from the joint end face, along the axis direction of the bottom shell and is connected to the bottom shell, and the face shell is provided with an air inlet;

the fan is positioned between the face shell and the bottom wall;

a charging coil connected to the housing; and

and the controller is electrically connected to the fan and the charging coil to control the operation of the fan and the charging coil, and the controller is connected to the shell.

According to the utility model discloses a wireless charger, the air outlet sets up along the axis direction of drain pan to make the air outlet be used for just to electronic equipment, two at least air outlets set up around the axis circumference of drain pan, so that directly blow electronic equipment on the circumference direction via the air that the air outlet flows, can be fast for electronic equipment cooling, and then improve electronic equipment's the speed of charging.

Optionally, the air inlet is located in an air outlet annular structure formed by at least two air outlets, and/or

At least two air outlets are circumferentially arranged around the axis of the fan.

Optionally, the bottom shell comprises a circumferentially closed bottom shell side wall, at least part of the bottom wall is located within the bottom shell side wall, and a first bottom shell space exists between the bottom shell side wall and the bottom wall along a radial direction of the bottom shell to form the air outlet.

Optionally, the bottom shell comprises a separating rib, one end of the separating rib is connected to the inner side surface of the side wall of the bottom shell, and the other end of the separating rib is connected to the bottom wall to form the air outlet.

Optionally, a second bottom case space exists between the fitting end face and the bottom case side wall along the axis direction of the bottom case.

Optionally, the controller is configured as a panel ring structure, the panel ring structure is sleeved on the periphery of the fan, and/or

The controller and the fan are both positioned on the side of the bottom wall away from the charging coil, and/or

The surface shell is connected with the bottom shell in a clamping mode.

Optionally, the bottom shell has a coil bead extending out of the bottom wall to form a coil mounting groove, and the charging coil is located in the coil mounting groove.

Optionally, the drain pan has the protruding muscle of magnetism, and the protruding diapire of magnetism protruding muscle extension to constitute magnetism mounting groove, wireless charger still includes the magnetism and adsorbs the subassembly, and the magnetism adsorbs the subassembly and is located magnetism mounting groove.

Optionally, the magnetic rib is sleeved on the periphery of the coil rib.

Optionally, the wireless charger further includes a magnetic shield, the magnetic shield is located in the coil mounting groove, and the charging coil is located on one side of the magnetic shield away from the fan.

Drawings

In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings.

Fig. 1 is a perspective view of one direction of a wireless charger according to a preferred embodiment of the present invention;

fig. 2 is a perspective view of the wireless charger of fig. 1 in another orientation;

fig. 3 is a perspective view of the wireless charger of fig. 1 connected to a mobile phone;

FIG. 4 is a front view of the wireless charger of FIG. 1 connected to a cell phone;

FIG. 5 isbase:Sub>A schematic cross-sectional view taken at A-A of FIG. 4;

FIG. 6 is an exploded view of the wireless charger of FIG. 1 connected to a mobile phone;

fig. 7 is a perspective view of one direction of a bottom case of the wireless charger of fig. 1;

fig. 8 is a perspective view of the bottom case of the wireless charger of fig. 1 in another direction; and

fig. 9 is a perspective view of a face housing of the wireless charger of fig. 1.

Description of the reference numerals

110: 120, mobile phone: shell body

130: bottom case 131: bottom wall

132: bottom case side wall 133: air outlet

134: the attaching end face 135: partition rib

136: the chucking hole 137: coil convex rib

138: magnetic beads 139: silica gel positioning convex rib

140: the surface shell 141: roof wall

142: face-case side wall 143: air inlet

144: the buckle 145: wire insertion hole

150: the fan 160: charging coil

170: the controller 171: plug with a locking mechanism

180: magnetic adsorption assembly 181: magnet ring

182: 190 of iron sheet: magnetic isolation plate

191: positioning boss 192: convex rib of magnetic isolation plate

200: heat-conducting silica gel part

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the terms "upper", "lower", and the like are used herein for purposes of illustration only and are not to be construed as limiting.

Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, e.g., a particular order, etc. Also, for example, the term "first spatial member" does not itself imply the presence of "second spatial member", and the term "second spatial member" does not itself imply the presence of "first spatial member".

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

The utility model provides a wireless charger. The wireless charger may charge the mobile phone 110, the tablet pc, and other electronic devices abutted thereto by using principles such as electromagnetic induction and magnetic resonance. Because the wireless charging technology and the principle of wireless charger are prior art, and are not the key points of the utility model protection, it is here just different to be discussed all over. The present embodiment will be described by taking an example in which the wireless charger charges the mobile phone 110.

Referring to fig. 1 to 9, the wireless charger includes a housing 120. The housing 120 includes a bottom case 130 and a face case 140. The bottom case 130 can be placed on the mobile phone 110, so that the wireless charger charges the mobile phone 110. The bottom case 130 is used to support the rear face case 140, the fan 150, the charging coil 160, the controller 170, the magnetic shield 190, the iron sheet 182, the magnet ring 181 and the heat-conducting silicone element 200.

The bottom case 130 may be a plastic member. Thus, the bottom chassis 130 has a small weight.

Referring to fig. 7 and 8, the bottom housing 130 is a substantially cylindrical structure (e.g., a cylindrical structure). The bottom case 130 has a bottom wall 131 and an air outlet 133. The plane in which the bottom wall 131 is located is perpendicular to the axial direction of the bottom case 130 (the up-down direction in fig. 5). An end surface of one end of the bottom wall 131 in the axial direction of the bottom case 130 is an abutting end surface 134. In the case where the wireless charger is used to charge the cellular phone 110, the attaching surface 134 of the bottom wall 131 may be attached to the back surface of the cellular phone 110. The air outlet 133 penetrates the bottom wall 131.

The air outlet 133 is disposed along an axial direction of the bottom case 130. Thus, when the attachment end surface 134 is attached to the back surface of the mobile phone 110, the air outlet 133 faces the back surface of the mobile phone 110. The air flowing out through the outlet 133 may blow directly on the back of the mobile phone 110. Thus, when the wireless charger charges the mobile phone 110, the temperature of the mobile phone 110 can be more effectively lowered.

At least two air outlets 133 are provided. At least two air outlets 133 are circumferentially spaced around the axis of the bottom case 130. Thus, air can blow straight through the back of the handset 110 in the circumferential direction via the outlet vents 133. Thus, the temperature of the cellular phone 110 can be more effectively lowered.

Referring to fig. 1 to 6 and fig. 9, the wireless charger further includes a panel 140. The face housing 140 is a plastic member. Thus, the weight of the face case 140 is small.

The face housing 140 has a cylindrical structure (e.g., a cylindrical structure). Specifically, the face shell 140 includes face shell sidewalls 142 and a top wall 141. The face-piece sidewall 142 is a circumferentially closed face-piece annular structure. The top wall 141 is connected to a first end of the face case 140 in an axial direction of the face case 140. The top wall 141 has an air inlet 143. The air inlet 143 communicates with the interior of the shell ring structure. Thus, the face housing 140 has a simple structure.

Preferably, the air inlets 143 are plural (e.g., four). The plurality of air inlets 143 are circumferentially spaced around the axis of the face shell 140. Thus, air can be more effectively sucked into the face case 140.

Along the axial direction of the bottom shell 130, the face shell 140 is located on one side of the bottom shell 130 far away from the attaching end surface 134. A second end of the panel sidewall 142 remote from the top wall 141 is connected to the bottom chassis 130. At this time, the axis of the face case 140 and the axis of the bottom case 130 substantially coincide. Thus, the face case 140 and the bottom case 130 enclose a case cavity.

As shown in fig. 1, 4 to 6, the wireless charger further includes a fan 150. The fan 150 is a silent axial flow fan. Thus, the operation sound of the fan 150 is small. The fan 150 is fixedly disposed in the housing cavity. For example, the fan 150 may be fixedly coupled to the bottom case 130. Thus, when the fan 150 is operated, air can be sucked into the housing cavity through the air inlet 143 and exhausted from the housing cavity through the air outlet 133, so that the air is blown directly to the back of the mobile phone 110.

It will be appreciated that in embodiments not shown, the fan may also be connected to the face housing.

With continued reference to fig. 1, 4-6, the wireless charger further includes a charging coil 160 and a controller 170. The charging coil 160 is fixedly connected to the bottom chassis 130. The charging coil 160 is used for charging the mobile phone 110 by using the principles of electromagnetic induction, magnetic field resonance, and the like. The controller 170 is fixedly disposed within the housing cavity. For example, the controller 170 is fixedly coupled to the face housing 140. The controller 170 is electrically connected to the fan 150 and the charging coil 160 to control the operation of the fan 150 and the charging coil 160.

It will be appreciated that in embodiments not shown, the charging coil may also be fixedly connected to the face shell. The controller may also be fixedly connected to the bottom case.

Preferably, the controller 170 may be a plate. Thus, the thickness of the controller 170 is small, and the thickness of the wireless charger can be reduced. Further preferably, the controller 170 may be a PCBA (Printed Circuit Board Assembly) Board. Thus, the model selection of the controller 170 is facilitated.

In this embodiment, the air outlets 133 are disposed along the axial direction of the bottom case 130, so that the air outlets 133 are directly opposite to the mobile phone 110, and the at least two air outlets 133 are circumferentially disposed around the axial direction of the bottom case 130, so that the air flowing out through the air outlets 133 directly blows the mobile phone 110 in the circumferential direction, which can quickly cool the mobile phone 110, and further increase the charging speed of the mobile phone 110.

The wireless charger of the embodiment is adopted to charge the mobile phone, the temperature of the battery of the mobile phone can be reduced by about 7 ℃, and the time required for fully charging the electric quantity of the mobile phone can be reduced by 50 minutes to 100 minutes.

Preferably, referring back to fig. 5 to 9, at least two air outlets 133 arranged circumferentially form an air outlet ring structure. All the air inlets 143 are located in the area enclosed by the annular structure of the air outlet. Therefore, the air flowing in through the air inlet 143 can be concentrated in the area enclosed by the annular structure of the air outlet, and flows out of the housing cavity through the air outlet 133.

The at least two air inlets 143 constitute an air inlet annular structure. The axis of the air inlet ring, the axis of the air outlet ring, and the axis of the fan 150 are substantially coincident. That is, the axis of the fan 150 and the axis of the bottom case 130 substantially coincide. Therefore, the structure of the wireless charger is simple.

As shown in fig. 5, 7 and 8, the bottom chassis 130 includes a bottom chassis side wall 132 and a partition rib 135. The bottom shell sidewall 132 is a circumferentially closed bottom shell ring structure. At least a portion of the bottom wall 131 is located within the bottom shell side wall 132. A first bottom case interval exists between the edge of the bottom wall 131 and the inner wall surface of the bottom case side wall 132 in the radial direction of the bottom case 130 to constitute an air outlet 133. Therefore, the area of the projection of the annular structure of the air outlet on the plane where the attaching end surface 134 is located can be increased as much as possible, and the temperature of the mobile phone 110 can be effectively reduced.

It is further preferred that the partition rib 135 is located within the first bottom case space. One end of the partition rib 135 is connected to the inner side surface of the bottom case side wall 132. The other end of the partition rib 135 is connected to the bottom wall 131. The partition rib 135 is plural. A plurality of partition ribs 135 are circumferentially disposed around the axis of the bottom case 130. Thus, the partition ribs 135 partition the first bottom case interval to constitute at least two air outlets 133. Thus, the bottom chassis 130 has a simple structure.

It will be appreciated that in embodiments not shown, through holes may also be provided in the bottom wall spaced from the side walls of the bottom shell to act as air outlets.

As shown in fig. 5 and 8, a second bottom case space exists between the bottom case side wall 132 and the fitting end surface 134 in the axial direction of the bottom case 130. In this way, when the attachment end surface 134 is attached to the back surface of the cellular phone 110, a space exists between the bottom case side wall 132 and the back surface of the cellular phone 110 in the axial direction of the bottom case 130. Therefore, the flow direction of the air flowing out of the housing cavity through the air outlet 133 is changed from the direction parallel to the axis of the bottom case 130 to the direction parallel to the plane of the attaching end surface 134. Thus, the temperature of the mobile phone 110 can be more effectively reduced.

Preferably, referring to fig. 5 to 9, a second end of the face shell 140 away from the top wall 141 is provided with a snap 144. The bottom chassis 130 has a card hole 136. The front case 140 is snapped into the snap holes 136 of the bottom case 130 by the snaps 144 to connect the front case 140 and the bottom case 130. Thus, the operation of connecting the face case 140 to the bottom case 130 is convenient.

As shown in fig. 5 and 6, the controller 170 is a circumferentially closed panel ring structure. The panel ring structure is sleeved on the periphery of the fan 150. Thus, the air drawn into the housing cavity through the air inlet 143 flows through the controller 170 in a circumferential direction around the axis of the fan 150. This enables the controller 170 to be efficiently cooled.

With continued reference to fig. 5 and 6, the controller 170 and the fan 150 are both located on the side of the bottom wall 131 away from the charging coil 160. Therefore, the bottom wall 131 separates the charging coil 160 from the controller 170, and the bottom wall 131 can block electromagnetic waves generated when the charging coil 160 works, so as to reduce the electromagnetic waves transmitted to the controller 170, and further reduce the temperature of the controller 170. In addition, fan 150 and controller 170 are located on the same side of bottom wall 131 away from charging coil 160, and fan 150 can cool down controller 170 more effectively.

Further preferably, the controller 170 is located at an end of the fan 150 far from the attaching end surface 134 along the axial direction of the bottom case 130. Thus, the controller 170 may be located as far away from the charging coil 160 as possible.

Referring to fig. 5 to 8, a portion of the bottom wall 131 extends and protrudes away from a side of the face shell 140 to form a coil rib 137. The coil ribs 137 are configured as circumferentially closed annular structures. Thus, the bottom wall 131 constitutes a coil mounting groove at the coil rib 137. The opening of the coil mounting groove is distant from the face case 140 in the axial direction of the bottom case 130. The charging coil 160 is fixed in the coil mounting groove. Thereby, the installation of the charging coil 160 is facilitated.

The wireless charger further includes a magnetic shield 190. Magnetic shield 190 is located between charging coil 160 and bottom wall 131. In this way, the magnetic shield 190 separates the charging coil 160 and the controller 170, and the magnetic shield 190 can block the electromagnetic wave generated by the charging coil 160 to further reduce the electromagnetic wave transmitted at the controller 170 and the fan 150.

The magnetic shield 190 is a substantially circular plate. The magnetic shield 190 is positioned in the coil mounting groove. Thus, the installation of the magnetic shield 190 is facilitated.

With continued reference to fig. 5-8, the wireless charger further includes a magnetic attraction assembly 180. The magnetic attraction assembly 180 includes a magnet ring 181 and an iron plate 182. The wireless charger is attached to the mobile phone 110 by the magnet ring 181, and thus the wireless charger is fixed to the mobile phone 110. The iron piece 182 is located on the side of the magnet ring 181 close to the face case 140. The iron piece 182 enables the wireless charger to be more firmly attached to the cellular phone 110.

A portion of the bottom wall 131 extends and projects away from a side of the face shell 140 to form a magnetic bead 138. The magnetic ribs 138 are circumferentially closed annular structures. Thus, the bottom wall 131 constitutes a magnetic mounting groove at the magnetic bead 138. The opening of the magnetic mounting groove is distant from the face case 140 in the axial direction of the bottom case 130. The magnet ring 181 and the iron piece 182 are both of a ring structure. The magnet ring 181 and the iron piece 182 are located in the magnetic mounting groove. Thus, installation of the magnetic attachment assembly 180 is facilitated.

Preferably, the magnetic rib 138 is sleeved on the outer circumference of the coil rib 137. The magnetic ribs 138 have an axis substantially coincident with the axis of the coil ribs 137. Thus, the magnetic bead 138, the bottom wall 131, and the coil bead 137 constitute a magnetic mounting groove. Thus, the bottom chassis 130 has a simple structure.

With reference to fig. 5 to 8, along the axial direction of the bottom shell 130, the edge of the bottom wall 131 protrudes away from the face shell 140 to form a silicone positioning rib 139. Along the axial direction of the bottom shell 130, the end surface of the silica gel positioning rib 139 far away from the face shell 140 is the fitting end surface 134. The silica gel positioning rib 139 is a circumferentially closed annular structure. Thus, the bottom wall 131 forms a silicone positioning groove at the silicone positioning rib 139. The wireless charger further includes a thermally conductive silicone piece 200. The thermally conductive silicone member 200 is a circular sheet. The heat-conducting silica gel piece 200 is positioned in the silica gel positioning groove. Thus, the heat conductive silicone member 200 is easily installed.

As shown in fig. 5, the magnetic attraction assembly 180, the charging coil 160, and the magnetism isolating plate 190 are located on a side of the heat conductive silicone member 200 close to the face case 140 in the axial direction of the bottom case 130. The thermally conductive silicone member 200 is attached to the magnetic attraction assembly 180, the charging coil 160, and the magnetic shield 190. In this way, the heat conductive silicone member 200 can block the magnetic attraction assembly 180, the charging coil 160, and the magnetic shield 190 to define the positions of the magnetic attraction assembly 180, the charging coil 160, and the magnetic shield 190 in the axial direction of the bottom case 130. In addition, the thermally conductive silicone member 200 can protect the magnetic attraction assembly 180, the charging coil 160, and the magnetism isolating plate 190.

With continued reference to fig. 5, along the axial direction of the bottom shell 130, the surface of the thermal conductive silicone member 200 away from the face shell 140 is substantially flush with the attaching end surface 134. Thus, when the attachment end surface 134 is attached to the back surface of the mobile phone 110, the thermally conductive silicone member 200 is attached to the back surface of the mobile phone 110. The thermally conductive silicone member 200 can transfer heat of the coil to the back surface of the mobile phone 110 to lower the temperature of the charging coil 160. In addition, the thermal conductive silicone member 200 is attached to the back surface of the mobile phone 110, so that the contact area between the wireless charger and the mobile phone can be increased, and the friction surface between the wireless charger and the mobile phone 110 can be increased, so that the wireless charger can be more firmly connected to the mobile phone 110.

Preferably, as shown in fig. 5 and 6, the charging coil 160 has a central hole. The middle portion of the magnetism isolating plate 190 protrudes in the axial direction thereof to constitute a positioning boss 191. The positioning boss 191 is disposed through the center hole of the charging coil 160 to position the charging coil 160. In addition, the positioning bosses 191 may improve the strength of the magnetic shield 190.

The edge of the magnetic shield 190 protrudes in the axial direction thereof to form a magnetic shield rib 192. This can improve the strength of the magnetic shield 190.

Preferably, as shown in fig. 3, 6 and 9, the controller 170 is further provided with a plug 171. The plug 171 is used for connecting a power line to connect a power source through the power line. In this way, the power source may power the wireless charger. The housing 120 has a wire insertion hole 145. The wire insertion hole 145 communicates with the housing cavity. The plug 171 is located at the wire insertion hole 145. In this way, a power cord may be connected to plug 171 at wire insertion hole 145.

It is further preferred that the face shell 140 has wire insertion holes 145. Thus, the strength of the housing 120 at the wire insertion hole 145 is large.

It will be appreciated that in embodiments not shown, the wire insertion holes may also be located in the bottom housing.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is not applicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Those skilled in the art will appreciate that numerous variations and modifications are possible in light of the teachings of the present invention, and are within the scope of the invention as claimed.

Claims (10)

1. A wireless charger for charging an electronic device, the wireless charger comprising:

a housing, the housing comprising:

the bottom shell is provided with a bottom wall and at least two air outlets penetrating through the bottom wall, the attaching end face of one end of the bottom wall along the axis direction of the bottom shell is used for attaching to the electronic equipment, the at least two air outlets are circumferentially arranged around the axis of the bottom shell, and the air outlets are arranged along the axis direction of the bottom shell so that the air outlets are used for facing the electronic equipment; and

the face shell is positioned on one side of the bottom shell, which is far away from the joint end face, along the axis direction of the bottom shell and is connected to the bottom shell, and the face shell is provided with an air inlet;

a fan located between the face shell and the bottom wall;

a charging coil connected to the housing; and

a controller electrically connected to the fan and the charging coil to control operation of the fan and the charging coil, the controller connected to the housing.

2. The wireless charger of claim 1,

the air inlet is positioned in an air outlet annular structure formed by at least two air outlets, and/or

At least two air outlets are circumferentially arranged around the axis of the fan.

3. The wireless charger according to claim 1, wherein the bottom housing includes a circumferentially closed bottom housing sidewall, at least a portion of the bottom wall being located within the bottom housing sidewall, there being a first bottom housing space between the bottom housing sidewall and the bottom wall in a radial direction of the bottom housing to form the air outlet.

4. The wireless charger according to claim 3, wherein the bottom case includes a partition rib, one end of the partition rib is connected to an inner side surface of the side wall of the bottom case, and the other end of the partition rib is connected to the bottom wall to constitute the air outlet.

5. The wireless charger of claim 3, wherein a second bottom case space exists between the abutting end surface and the bottom case side wall in the axial direction of the bottom case.

6. The wireless charger of claim 1,

the controller is constructed into a panel annular structure which is sleeved on the periphery of the fan and/or

The controller and the fan are both positioned on one side of the bottom wall far away from the charging coil, and/or

The face shell is connected with the bottom shell in a clamping mode.

7. The wireless charger of claim 1 wherein the bottom housing has a coil rib extending out of the bottom wall to define a coil mounting slot, the charging coil being positioned in the coil mounting slot.

8. The wireless charger of claim 7, wherein the bottom housing has a magnetic rib extending out of the bottom wall to form a magnetic mounting slot, the wireless charger further comprising a magnetic attachment assembly positioned within the magnetic mounting slot.

9. The wireless charger of claim 8 wherein the magnetic rib is sleeved around the periphery of the coil rib.

10. The wireless charger of claim 7, further comprising a magnetic shield positioned within the coil mounting slot, wherein the charging coil is positioned on a side of the magnetic shield away from the fan.

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