Wireless charger

Abstract

The utility model provides a wireless charger which comprises a shell, a magnetic attraction assembly and a heat conduction assembly. The shell forms a containing cavity and is provided with heat dissipation holes communicating the containing cavity with the outside. The magnetic attraction assembly is located in the containing cavity and used for fixing the electronic device and the shell in a magnetic attraction mode and charging the electronic device in a magnetic attraction mode. The heat conduction assembly is located in the containing cavity, one end of the heat conduction assembly is connected with the magnetic attraction assembly, and the other end of the heat conduction assembly is exposed out of the heat dissipation holes so that heat of the magnetic attraction assembly can pass through the heat conduction assembly and be transmitted to the outside through the heat dissipation holes. According to the scheme, the heat dissipation holes are formed in the shell, and the heat conduction assembly is arranged, so that the heat conduction assembly can effectively transmit heat to the periphery of the heat dissipation holes, the heat can be efficiently discharged out of the containing cavity from the heat dissipation holes, and the situation that a large amount of heat is still accumulated in the containing cavity after being transmitted by the heat conduction assembly is avoided. Therefore, the wireless charger provided by the utility model has a good heat dissipation effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a charger technical field, especially a wireless charger. BACKGROUND

[0002] With the development of wireless charging technology, wireless charging technology is widely used in electronic devices, such as charging mobile phones, charging watches, charging earphones and the like, and magnetic wireless charging can realize magnetic attraction and provide wireless charging function for electronic devices, based on the product form of magnetic wireless charging, after the position of wireless charging and the electronic device are attached, a closed space is also formed, which is not friendly to heat dissipation, and a high-temperature area is easily formed in the local part, and because of the formation of the local high temperature, the internal components will also adopt the method of reducing power to cool down. In the related art, heat is only transferred through the heat dissipation structure, but the magnetic wireless charging still forms a relatively closed internal space around the wireless charging position, which is not conducive to the heat dissipation of the magnetic wireless charging. SUMMARY

[0003] The main purpose of the utility model is to provide a wireless charger, which can have good heat dissipation effect.

[0004] To achieve the above purpose, the embodiments of the utility model adopt the following technical scheme:

[0005] The wireless charger comprises:

[0006] A shell forms a cavity, and the shell has a heat dissipation hole communicating with the cavity and the outside world;

[0007] A magnetic attraction assembly is located in the cavity, and the magnetic attraction assembly is used for magnetically attracting and fixing the electronic device to the shell and magnetically charging the electronic device;

[0008] A heat conduction assembly is located in the cavity, one end of the heat conduction assembly is connected to the magnetic attraction assembly, and the other end of the heat conduction assembly is exposed outside the heat dissipation hole, so that the heat of the magnetic attraction assembly can pass through the heat conduction assembly and be transferred to the outside world through the heat dissipation hole.

[0009] In some embodiments, the number of heat dissipation holes is multiple, and the heat conduction assembly is exposed outside one or more of the heat dissipation holes.

[0010] In some embodiments, the shell has a magnetic attraction surface adapted to contact the electronic device, the magnetic attraction surface and the magnetic attraction assembly are arranged opposite along a first direction, along a second direction parallel to the magnetic attraction surface, the magnetic attraction assembly is located on one side of the cavity, and a third direction is perpendicular to the first direction and the second direction.

[0011] The heat dissipation hole is located on the magnetic surface; and / or, along the second direction, the shell has opposite first and second end faces, the minimum distance of the first end face from the magnetic assembly is less than the minimum distance of the second end face from the magnetic assembly, and the heat dissipation hole is located on the first end face; and / or, along the third direction, the shell has opposite third and fourth end faces, the minimum distance of the first end face from the magnetic assembly is less than the minimum distance of the second end face from the magnetic assembly, and the heat dissipation hole is located on the third end face; and / or, along the third direction, the shell has opposite third and fourth end faces, and the heat dissipation hole is located on the third and fourth end faces.

[0012] In some embodiments, the shell has a magnetic surface adapted to contact an electronic device, the magnetic surface is arranged opposite the magnetic assembly along a first direction, along a second direction parallel to the magnetic surface, the magnetic assembly is located on one side of the accommodating cavity, and a third direction is perpendicular to the first and second directions;

[0013] The heat dissipation hole includes first and second holes, one of the magnetic surface, the first end face, the second end face, the third end face, and the fourth end face is distributed with the first hole, and the other is distributed with the second hole, and the heat conduction assembly is exposed by the first and second holes.

[0014] In some embodiments, the shell has a magnetic surface adapted to contact an electronic device, the magnetic surface is arranged opposite the magnetic assembly along a first direction, along a second direction parallel to the magnetic surface, the magnetic assembly is located on one side of the accommodating cavity, and a third direction is perpendicular to the first and second directions;

[0015] The heat dissipation hole is located on the magnetic surface, along a direction perpendicular to the magnetic surface, an edge of an aperture of the heat dissipation hole projects on a projection plane parallel to the magnetic surface as a first projection, the magnetic assembly projects on the projection plane as a second projection, and the first projection is spaced apart from the second projection.

[0016] In some embodiments, the heat conduction assembly includes first and second heat conduction members connected to each other, one end of the first heat conduction member is connected to the magnetic assembly, the other end is connected to the second heat conduction member, one end of the second heat conduction member is connected to the first heat conduction member, and the other end is exposed by the heat dissipation hole.

[0017] In some embodiments, the materials and / or thermal conductivities between the first and second heat conduction members are different.

[0018] In some embodiments, the shell has a magnetic surface adapted to contact an electronic device, the magnetic surface is arranged opposite the magnetic assembly along a first direction, along a second direction parallel to the magnetic surface, the magnetic assembly is located on one side of the accommodating cavity, and a third direction is perpendicular to the first and second directions;

[0019] The heat dissipation hole comprises a second hole and a third hole, the second hole is located at the third end face, and the third hole is located at the fourth end face; the heat conduction assembly comprises a first heat conduction part, a second heat conduction part and a third heat conduction part, the first heat conduction part faces the magnetic attraction face along the first direction, the second heat conduction part is connected to one side of the first heat conduction part along the third direction and is bent towards the second hole, so that the second heat conduction part is exposed from the second hole, and the third heat conduction part is connected to the other side of the first heat conduction part along the third direction and is bent towards the third hole, so that the third heat conduction part is exposed from the third hole.

[0020] In some embodiments, the wireless charger further comprises a guide magnet located in the cavity, the guide magnet being used for positioning the electronic device, and the heat conduction assembly has a first avoiding opening, and the guide magnet is at least partially arranged in the first avoiding opening.

[0021] In some embodiments, the shell comprises a first shell and a second shell, and the wireless charger further comprises a connecting structure located in the cavity, the connecting structure connecting the first shell and the second shell, and the heat conduction assembly has a second avoiding opening, and the connecting structure is at least partially arranged in the second avoiding opening.

[0022] Compared with the prior art, the wireless charger has the following beneficial effects:

[0023] The wireless charger comprises a shell, a magnetic attraction assembly and a heat conduction assembly. The shell forms a cavity, and the shell has a heat dissipation hole communicating with the cavity and the outside. The magnetic attraction assembly is located in the cavity, and the magnetic attraction assembly is used for magnetically attracting and fixing the electronic device to the shell and magnetically charging the electronic device. The heat conduction assembly is located in the cavity, one end of the heat conduction assembly is connected to the magnetic attraction assembly, and the other end of the heat conduction assembly is exposed from the heat dissipation hole, so that the heat of the magnetic attraction assembly can pass through the heat conduction assembly and be transmitted to the outside through the heat dissipation hole. Compared with the design of forming a closed space around the wireless charging position in the related art, the wireless charger has the heat dissipation hole formed on the shell, and the position of the heat conduction assembly is set, so that the heat conduction assembly can effectively transmit the heat to the surroundings of the heat dissipation hole, and then the heat can be efficiently discharged from the cavity through the heat dissipation hole, avoiding that a large amount of heat is still accumulated in the cavity after being transmitted through the heat conduction assembly. Therefore, the wireless charger can have good heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the structures shown in these drawings without any creative labor.

[0025] Figure 1The first side three-dimensional schematic view of the wireless charger provided in the first embodiment of the utility model is shown in the figure.

[0026] Figure 2 The explosion schematic view of the wireless charger provided in the first embodiment of the utility model is shown in the figure.

[0027] Figure 3 The second direction overhead schematic view of the wireless charger provided in the second embodiment of the utility model is shown in the figure.

[0028] Figure 4 The first side three-dimensional schematic view of the wireless charger provided in the third embodiment of the utility model is shown in the figure.

[0029] Figure 5 The second side three-dimensional schematic view of the wireless charger provided in the fourth embodiment of the utility model is shown in the figure.

[0030] Figure 6 The second side three-dimensional schematic view of the wireless charger provided in the fifth embodiment of the utility model is shown in the figure, wherein part of the shell is removed, and the shielded heat dissipation hole and the heat conduction assembly are shown.

[0031] Explanation of the reference signs:

[0032] The wireless charger 100;

[0033] The shell 110; the cavity 111; the heat dissipation hole 112; the first hole 1121; the second hole 1122; the third hole 1123; the magnetic attraction surface 113; the first end surface 114; the second end surface 115; the third end surface 116; the fourth end surface 117; the first shell 118; the second shell 119;

[0034] The magnetic attraction assembly 120;

[0035] The heat conduction assembly 130; the first heat conduction piece 131; the second heat conduction piece 132; the first heat conduction part 133; the second heat conduction part 134; the third heat conduction part 135; the first avoiding opening 136; the second avoiding opening 137;

[0036] The guide magnet 140;

[0037] The connecting structure 150;

[0038] The first direction X;

[0039] The second direction Y;

[0040] The third direction Z.

[0041] The utility model realizes the purpose, functional characteristics and advantages, which will be further explained in combination with embodiments and with reference to the drawings. Specific implementation

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0043] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0044] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or", or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0045] Based on the product form of magnetic attraction wireless charging, the position of wireless charging and the electronic device are attached, and a closed space is also formed, which is not friendly to heat dissipation, and a high temperature area is easily formed in the local area. Because of the formation of a local high temperature, the internal components detect high temperature, and also use the method of reducing power to cool down. In the related art, only the heat transfer of the heat dissipation structure is used, but the magnetic attraction wireless charging still forms a relatively closed internal space around the wireless charging position, which is not conducive to the heat dissipation of the magnetic attraction wireless charging.

[0046] Therefore, referring to Figures 1-6The utility model discloses an embodiment of wireless charger 100. The wireless charger 100 can charge any suitable type of electronic product, which can be one of a mobile phone, earphone, smart watch and tablet computer. In addition, the wireless charger 100 can be connected to a charging line to supply power to itself when charging the electronic device, or can not be connected to the charging line, that is, the wireless charger 100 at this time can be used as a power bank. Specifically, the wireless charger 100 includes a shell 110, a magnetic attraction assembly 120 and a heat conduction assembly 130.

[0047] Referring to Figures 1-2 The shell 110 forms a cavity 111, and the shell 110 has a heat dissipation hole 112 that communicates the cavity 111 with the outside. The cavity 111 is the inner cavity structure of the shell 110 itself, and the shell 110, the cavity 111 and the heat dissipation hole 112 can all have any suitable shape. In the embodiments of the utility model, the shell 110 and the cavity are both rectangular, and the heat dissipation hole 112 is a rectangular hole. The cavity 111 is connected to the outside through the heat dissipation hole 112, so that the heat in the cavity 111 can be dissipated to the outside through the heat dissipation hole 112. The specific heat dissipation effect of the heat dissipation hole 112 will be described later.

[0048] Referring to Figures 1-2 The magnetic attraction assembly 120 is located in the cavity 111, and is used to magnetically attract and fix the electronic device to the shell 110 and magnetically charge the electronic device. The magnetic attraction assembly 120 can specifically include a magnet, a coil and a circuit board. The magnet is used to attract the electronic device and ensure that the magnetic attraction assembly 120 is aligned with the electronic device. The magnet is usually arranged or extended in a specific shape (such as a circular ring) to ensure stable connection. It should be noted that the magnetic attraction and fixation effect of the magnetic attraction assembly 120 can indirectly act on the electronic device, that is, under the action of magnetic attraction, the electronic device can be attached to one side of the shell 110, and the magnetic attraction assembly 120 does not directly contact the electronic device. The coil can be made of copper wire, and the coil can transmit electric energy to the receiving coil of the electronic device through electromagnetic induction principle. The circuit board can include a control circuit and a power management chip, which is used to manage the charging process and ensure the charging efficiency and safety.

[0049] Referring to Figures 1-2The heat conduction assembly 130 is located in the cavity 111, one end of the heat conduction assembly 130 is connected with the magnetic attraction assembly 120, and the other end of the heat conduction assembly 130 is exposed outside the heat dissipation hole 112, so that the heat of the magnetic attraction assembly 120 can pass through the heat conduction assembly 130 and be transmitted to the outside through the heat dissipation hole 112. The limitation that the heat conduction assembly 130 is exposed outside the heat dissipation hole 112 means that, as viewed along the axial direction of the heat dissipation hole 112, part of the heat conduction assembly 130 is located inside the heat dissipation hole 112. It should be noted that, for the above-mentioned connection of one end of the heat conduction assembly 130 with the magnetic attraction assembly 120, the heat conduction assembly 130 can only contact (abut against) the magnetic attraction assembly 120, or the heat conduction assembly 130 can be fixedly connected with the magnetic attraction assembly 120. According to requirements, the heat conduction assembly 130 can have any suitable structure shape, for example, the heat conduction assembly 130 can have a sheet shape. The heat conduction assembly 130 can be any kind of element suitable for heat transmission, for example, the material of the heat conduction assembly 130 can be one of aluminum, copper, graphene, ceramic, and composite material. Through the arrangement that one end of the heat conduction assembly 130 is connected with the magnetic attraction assembly 120 and the other end of the heat conduction assembly 130 is exposed outside the heat dissipation hole 112, the heat conduction assembly 130 can effectively transmit heat to the surrounding of the heat dissipation hole 112 (i.e., the position of the cavity 111 close to the heat dissipation hole 112), so that the heat can be efficiently discharged from the heat dissipation hole 112 to the cavity 111, avoiding that a large amount of heat is still accumulated in the cavity 111 after being transmitted through the heat conduction assembly 130.

[0050] It can be seen that the wireless charger 100 of the utility model includes a shell 110, a magnetic attraction assembly 120, and a heat conduction assembly 130. The shell 110 forms a cavity 111, and the shell 110 has a heat dissipation hole 112 that communicates the cavity 111 with the outside. The magnetic attraction assembly 120 is located in the cavity 111, and the magnetic attraction assembly 120 is used for magnetically attracting and fixing an electronic device to the shell 110 and magnetically charging the electronic device. The heat conduction assembly 130 is located in the cavity 111, one end of the heat conduction assembly 130 is connected with the magnetic attraction assembly 120, and the other end of the heat conduction assembly 130 is exposed outside the heat dissipation hole 112, so that the heat of the magnetic attraction assembly 120 can pass through the heat conduction assembly 130 and be transmitted to the outside through the heat dissipation hole 112. Compared with the design in the related art that a closed space is formed around the wireless charging position, the utility model discloses a scheme of opening the heat dissipation hole 112 on the shell 110 and arranging the position of the heat conduction assembly 130, so that the heat conduction assembly 130 can effectively transmit heat to the surrounding of the heat dissipation hole 112, so that the heat can be efficiently discharged from the heat dissipation hole 112 to the cavity 111, avoiding that a large amount of heat is still accumulated in the cavity 111 after being transmitted through the heat conduction assembly 130. Therefore, the wireless charger 100 of the utility model can have good heat dissipation effect.

[0051] For the specific arrangement of the heat dissipation hole 112, see Figures 1-2In some embodiments, the number of heat dissipation holes 112 is multiple, and the heat conduction assembly 130 is exposed by one or more of the heat dissipation holes 112. The multiple heat dissipation holes 112 can be arranged at equal intervals (uniformly) or at unequal intervals (non-uniformly), and the multiple heat dissipation holes 112 can be arranged on the same side wall surface or different side wall surfaces of the shell 110. In addition, the shapes of the multiple heat dissipation holes 112 can be the same or different.

[0052] For the convenience of description, see Figures 1-6 In some embodiments, the shell 110 is defined to have a magnetic attraction surface 113 adapted to contact an electronic device, and the magnetic attraction surface 113 is arranged opposite the magnetic attraction assembly 120 along a first direction X, that is, the first direction X is the direction of the magnetic force of the magnetic attraction assembly 120 to attract the electronic device. Along a second direction Y parallel to the magnetic attraction surface 113, the magnetic attraction assembly 120 is located on one side of the accommodating cavity 111, and a third direction Z is perpendicular to the first direction X and the second direction Y. Figures 1-6 In the embodiment shown, the shell 110 is a substantially rectangular shell 110, the first direction X corresponds to the thickness direction of the shell 110, the second direction Y corresponds to the length direction of the shell 110, and the third direction Z corresponds to the width direction of the shell 110.

[0053] Based on the above definitions, the more specific arrangements of the heat dissipation holes 112 are introduced below, see Figures 1-2 In the first arrangement of the heat dissipation holes 112, the heat dissipation holes 112 are located on the magnetic attraction surface 113. Arranging the heat dissipation holes 112 on the magnetic attraction surface 113 can make the heat dissipation position (i.e., the position of the heat dissipation holes 112) closer to the main heat source (i.e., the magnetic attraction assembly 120), thereby facilitating the timely discharge of heat and increasing the heat dissipation efficiency. See Figures 1-3 In the second arrangement of the heat dissipation holes 112, along the second direction Y, the shell 110 has opposite first and second end surfaces 114 and 115, the minimum distance of the first end surface 114 from the magnetic attraction assembly 120 is less than the minimum distance of the second end surface 115 from the magnetic attraction assembly 120, and the heat dissipation holes 112 are located on the first end surface 114. Since the value of the first end surface 114 from the magnetic attraction assembly 120 is smaller, similar to the first arrangement, arranging the heat dissipation holes 112 on the first end surface 114 can make the heat dissipation position closer to the main heat source, thereby facilitating the timely discharge of heat and increasing the heat dissipation efficiency, and facilitating the heat dissipation of the side surface position of the magnetic attraction assembly 120 (since the heat dissipation holes 112 are directly opposite the side surface of the magnetic attraction assembly 120), and without occupying the space of the magnetic attraction surface 113. In the third arrangement of the heat dissipation holes 112, along the third direction Z, the shell 110 has opposite third and fourth end surfaces 116 and 117, the minimum distance of the first end surface 114 from the magnetic attraction assembly 120 is less than the minimum distance of the second end surface 115 from the magnetic attraction assembly 120, and the heat dissipation holes 112 are located on the third end surface 116. SeeFigure 4 Or Figure 5 In the fourth type of arrangement of the heat dissipation holes 112, the shell 110 has opposite third end faces 116 and fourth end faces 117 along the third direction Z, and the heat dissipation holes 112 are located on the third end faces 116 and the fourth end faces 117. In the third type and the fourth type of arrangement, the heat dissipation holes 112 are arranged on the side of the shell 110 along the third direction Z, which is closer to the magnetic assembly 120. Similar to the first type of arrangement, arranging the heat dissipation holes 112 on the third end faces 116 and / or the fourth end faces 117 can make the heat dissipation position closer to the main heat source, which is conducive to timely heat dissipation, increases the heat dissipation efficiency, and is conducive to dissipating heat from the side of the magnetic assembly 120 (because the heat dissipation holes 112 are directly opposite the side of the magnetic assembly 120), and does not need to occupy the space of the magnetic surface 113. In addition, in other embodiments, the heat dissipation holes 112 can be located on the second end faces 115, or the heat dissipation holes 112 can also be located on the back of the shell 110 (the end face opposite to the magnetic surface 113 along the first direction X). It should be noted that the above-mentioned arrangements of the various types of heat dissipation holes 112 can be combined with each other, for example, in some embodiments, the number of heat dissipation holes 112 is multiple, and each heat dissipation hole 112 is distributed on the magnetic surface 113, the first end faces 114, and the third end faces 116 and the fourth end faces 117. In addition, see Figure 4 Or Figure 5 When the heat dissipation holes 112 are located on the third end faces 116 and / or the fourth end faces 117, the heat dissipation holes 112 can be located on the side closer to the magnetic assembly 120 along the second direction Y.

[0054] In order to make the heat dissipation range of the heat dissipation holes 112 wider, see Figure 4 Or Figure 5 In some embodiments, the heat dissipation holes 112 include first holes 1121 and second holes 1122, one of the magnetic surface 113, the first end faces 114, the second end faces 115, the third end faces 116 and the fourth end faces 117 is distributed with the first holes 1121, and the other is distributed with the second holes 1122, and the heat conduction assembly 130 is exposed from the first holes 1121 and the second holes 1122. It can be understood that the heat dissipation holes 112 include multiple, and at least two of the multiple heat dissipation holes 112 (corresponding to the first holes 1121 and the second holes 1122) are located on the different side walls of the shell 110, so that the heat dissipation holes 112 can dissipate heat for different positions and directions of the magnetic assembly 120.

[0055] Based on the arrangement of the heat dissipation holes 112 on the magnetic surface 113, see Figure 6In some embodiments, along a direction perpendicular to the magnetic surface 113, the projection of the edge of the heat dissipation hole 112 onto a projection plane parallel to the magnetic surface 113 is the first projection, and the projection of the magnetic assembly 120 onto the projection plane is the second projection, with the first and second projections spaced apart. It is understood that in some layout requirements, when viewed along the first direction X, the magnetic assembly 120 is located only on one side of the cavity 111 (in...). Figure 6 In the illustrated embodiment, the magnetic suction component 120 is located along the second direction Y on the side of the cavity 111 near the first end face 114. Based on this, the heat dissipation hole 112 can be provided in the part of the cavity 111 that does not accommodate the magnetic suction component 120. This provisioning surface allows the heat dissipation hole 112 to be away from the magnetic suction component 120, thereby facilitating the heat dissipation hole 112 to dissipate heat to the outside. Specifically, since the fixing force between the electronic device and the housing 110 comes from the magnetic suction component 120, the placement of the heat dissipation hole 112 at a distance from the magnetic suction component 120 is beneficial to ensure that the heat dissipation hole 112 and the electronic device are properly positioned. Sufficient heat dissipation gaps are provided. When the portion of the housing 110 with heat dissipation holes 112 abuts against the electronic device, the aforementioned arrangement facilitates heat dissipation through the small gaps. Furthermore, it avoids other adverse effects caused by the heat dissipation holes 112. For example, the side of the magnetic assembly 120 along the first direction X frequently contacts the electronic device. If the heat dissipation holes 112 are placed in this location (i.e., the first projection overlaps with the second projection), heat can easily be transferred to the electronic device, or the structural strength of the location where the heat dissipation holes 112 are placed may deteriorate, reducing the durability of the wireless charger 100. Depending on requirements, in some embodiments, the first projection and the second projection may at least partially overlap.

[0056] Based on the arrangement of the heat dissipation holes 112 on the third end face 116 and the fourth end face 117, see [reference needed]. Figures 4-6In some embodiments, the heat dissipation hole 112 comprises a second hole 1122 located at the third end surface 116 and a third hole 1123 located at the fourth end surface 117, and the heat conduction assembly 130 comprises a first heat conduction part 133, a second heat conduction part 134 and a third heat conduction part 135. The first heat conduction part 133 faces the magnetic surface 113 along the first direction X. The second heat conduction part 134 is connected to one side of the first heat conduction part 133 along the third direction Z and is bent towards the second hole 1122, so that the second heat conduction part 134 is exposed from the second hole 1122. The third heat conduction part 135 is connected to the other side of the first heat conduction part 133 along the third direction Z and is bent towards the third hole 1123, so that the third heat conduction part 135 is exposed from the third hole 1123. It can be understood that the above arrangement can make the first heat conduction part 133, the second heat conduction part 134 and the third heat conduction part 135 face the magnetic surface 113, the third end surface 116 and the fourth end surface 117 respectively, and make the second heat conduction part 134 and the third heat conduction part 135 extend to the positions facing the third end surface 116 and the fourth end surface 117 by bending respectively, so that the integrity of the heat conduction assembly 130 is stronger, and the heat conduction assembly 130 is more convenient to fix. In other embodiments, the first heat conduction part 133, the second heat conduction part 134 and the third heat conduction part 135 can be separately arranged and face the magnetic surface 113, the third end surface 116 and the fourth end surface 117 respectively. Further, in some embodiments, the heat dissipation hole 112 can further comprise a first hole 1121 located at the magnetic surface 113, so that the first heat conduction part 133 can be exposed from the first hole 1121. It should be noted that the bending effect described in the present application is specifically that, in some embodiments, the bending effect is arc bending, so that the interface formed by bending forms a curved surface, and in other embodiments, the bending effect is bending, so that the interface formed by bending forms a folded edge.

[0057] For the specific structure of the heat conduction assembly 130, see Figure 2In some embodiments, the heat conduction assembly 130 includes a first heat conduction member 131 and a second heat conduction member 132 connected to each other, and the first heat conduction member 131 and the second heat conduction member 132 can be fixedly connected to each other or only in contact, for example, the first heat conduction member 131 and the second heat conduction member 132 are arranged in a stack along the first direction X. The shape, size and material between the first heat conduction member 131 and the second heat conduction member 132 can be the same or different. One end of the first heat conduction member 131 is connected to the magnetic attraction assembly 120, and the other end is connected to the second heat conduction member 132. One end of the second heat conduction member 132 is connected to the first heat conduction member 131, and the other end is exposed by the heat dissipation hole 112. By arranging two parts of the heat conduction assembly 130 connected to each other, on the one hand, according to actual needs, the material and / or heat conduction coefficient between the first heat conduction member 131 and the second heat conduction member 132 can be different. For example, in some embodiments, the material of the first heat conduction member 131 is highland barley paper, so that the first heat conduction member 131 has both heat conduction and insulation properties, and the material of the second heat conduction member 132 can be a conventional heat conduction material (such as aluminum, graphene, etc.), and the heat conduction capacity can be stronger than that of the first heat conduction member 131. On the other hand, in some needs, the two parts of the heat conduction assembly 130 are manufactured separately, which is more convenient to install and can reduce the manufacturing cost. According to needs, in other embodiments, the ends of the first heat conduction member 131 and the second heat conduction member 132 along the second direction Y can be connected to each other; or in other embodiments, the heat conduction assembly 130 is of an integrated structure, and the part of the heat conduction assembly 130 connected to the magnetic attraction assembly 120 and the part exposed by the heat dissipation hole 112 are of the same material.

[0058] For other structures of the wireless charger 100, on the one hand, referring to Figure 2 In some embodiments, the wireless charger 100 further includes a guide magnet 140 located in the cavity 111, the guide magnet 140 is used for positioning the electronic device, and the heat conduction assembly 130 has a first avoiding opening 136, and the guide magnet 140 is at least partially arranged in the first avoiding opening 136. On the other hand, referring to Figure 2 In some embodiments, the shell 110 includes a first shell 118 and a second shell 119, and the first shell 118 and the second shell 119 are connected to each other along the second direction Y. Figure 2In the shown embodiment, the first shell 118 and the second shell 119 are respectively an upper shell and a lower shell of the shell body 110 along the first direction X, and the wireless charger 100 further comprises a connecting structure 150 located in the cavity 111, the connecting structure 150 connects the first shell 118 and the second shell 119, the heat conduction assembly 130 has a second avoiding opening 137, and the connecting structure 150 is at least partially arranged in the second avoiding opening 137. The connecting structure 150 can be integrally connected with the shell body 110 or separately connected with the shell body 110. Specifically, the connecting structure 150 can be a connecting column provided with an opening hole for connecting the first shell 118 and the second shell 119, or the connecting structure 150 can be a clamping structure for clamping and fixing the first shell 118 and the second shell 119. It can be understood that the above-mentioned first aspect and the second aspect can make the heat conduction assembly 130 avoid other structures of the wireless charger 100, so that the heat conduction assembly 130 is more convenient to install, and is not limited to the above-mentioned guiding magnet 140 and the connecting structure 150. When other structures and the heat conduction structure may interfere, the heat conduction structure can also be provided with other avoiding openings.

[0059] The above are only preferred embodiments of the present application, and do not limit the patent range of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A wireless charger, characterized by, The wireless charger comprises: a housing forming a cavity, the housing having a heat dissipation hole communicating the cavity with the outside; a magnetic assembly located in the cavity, the magnetic assembly being used to magnetically fix the electronic device to the housing and magnetically charge the electronic device; a heat conduction assembly located in the cavity, one end of the heat conduction assembly being connected to the magnetic assembly, the other end of the heat conduction assembly being exposed by the heat dissipation hole, so that the heat of the magnetic assembly can be transferred to the outside through the heat conduction assembly and the heat dissipation hole.

2. The wireless charger according to claim 1, wherein: the number of heat dissipation holes is multiple, and the heat conduction assembly is exposed by one or more of the heat dissipation holes.

3. The wireless charger according to claim 1, wherein: the housing has a magnetic surface adapted to contact the electronic device, the magnetic surface and the magnetic assembly are oppositely arranged along a first direction, along a second direction parallel to the magnetic surface, the magnetic assembly is located on one side of the cavity, and a third direction is perpendicular to the first direction and the second direction; the heat dissipation hole is located on the magnetic surface; and / or, along the second direction, the housing has opposite first and second end surfaces, the minimum distance between the first end surface and the magnetic assembly is less than the minimum distance between the second end surface and the magnetic assembly, and the heat dissipation hole is located on the first end surface; and / or, along the third direction, the housing has opposite third and fourth end surfaces, the minimum distance between the first end surface and the magnetic assembly is less than the minimum distance between the second end surface and the magnetic assembly, and the heat dissipation hole is located on the third end surface; and / or, along the third direction, the housing has opposite third and fourth end surfaces, and the heat dissipation hole is located on the third and fourth end surfaces.

4. The wireless charger according to claim 1, wherein: the housing has a magnetic surface adapted to contact the electronic device, the magnetic surface and the magnetic assembly are oppositely arranged along a first direction, along a second direction parallel to the magnetic surface, the magnetic assembly is located on one side of the cavity, and a third direction is perpendicular to the first direction and the second direction, along the second direction, the housing has opposite first and second end surfaces, and along the third direction, the housing has opposite third and fourth end surfaces; the heat dissipation hole comprises a first hole and a second hole, one of the magnetic surface, the first end surface, the second end surface, the third end surface and the fourth end surface is distributed with the first hole, and the other is distributed with the second hole, and the heat conduction assembly is exposed by the first hole and the second hole.

5. The wireless charger according to claim 1, wherein: the housing has a magnetic surface adapted to contact the electronic device, the magnetic surface and the magnetic assembly are oppositely arranged along a first direction, along a second direction parallel to the magnetic surface, the magnetic assembly is located on one side of the cavity, and a third direction is perpendicular to the first direction and the second direction; The heat dissipation hole is located on the magnetic surface, and the hole edge of the heat dissipation hole is projected on a projection plane parallel to the magnetic surface as a first projection, and the magnetic assembly is projected on the projection plane as a second projection, and the first projection is spaced from the second projection. 6.The wireless charger of claim 1, wherein, The heat conduction assembly comprises a first heat conduction member and a second heat conduction member connected to each other, one end of the first heat conduction member is connected to the magnetic assembly, the other end is connected to the second heat conduction member, one end of the second heat conduction member is connected to the first heat conduction member, and the other end is exposed by the heat dissipation hole. 7.The wireless charger of claim 6, wherein, The material and / or the heat conduction coefficient between the first heat conduction member and the second heat conduction member are different. 8.The wireless charger of claim 1, wherein, The shell has a magnetic surface adapted to contact the electronic device, the magnetic surface and the magnetic assembly are oppositely arranged along a first direction, along a second direction parallel to the magnetic surface, the magnetic assembly is located on one side of the cavity, a third direction is perpendicular to the first direction and the second direction, and the shell has opposite third and fourth end faces along the third direction; The heat dissipation hole comprises a second hole located on the third end face and a third hole located on the fourth end face, the heat conduction assembly comprises a first heat conduction part, a second heat conduction part and a third heat conduction part, the first heat conduction part faces the magnetic surface along the first direction, the second heat conduction part is connected to one side of the first heat conduction part along the third direction and is bent towards the second hole, so that the second heat conduction part is exposed by the second hole, and the third heat conduction part is connected to the other side of the first heat conduction part along the third direction and is bent towards the third hole, so that the third heat conduction part is exposed by the third hole. 9.The wireless charger of claim 1, wherein, The wireless charger further comprises a guide magnet located in the cavity, the guide magnet is used for positioning the electronic device, and the heat conduction assembly has a first avoiding opening, and the guide magnet is at least partially arranged in the first avoiding opening. 10.The wireless charger of claim 1, wherein, The shell comprises a first shell and a second shell, the wireless charger further comprises a connecting structure located in the cavity, the connecting structure connects the first shell and the second shell, the heat conduction assembly has a second avoiding opening, and the connecting structure is at least partially arranged in the second avoiding opening.

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