Wireless portable charger

Abstract

A wireless portable charger (90) comprising a first housing (10), a second housing (20), a heat dissipation housing (30), a battery (40), and a coil (50), wherein the first housing (10) is connected to the second housing (20) to form a receiving space in which the battery (40) is arranged; wherein the heat dissipation housing (30) is connected to the first housing (10) or the second housing (20), wherein the coil (50) is electrically connected to the battery (40) for wirelessly charging an external device; wherein the coil (50) abuts against the heat dissipation housing (30), and the heat dissipation housing (30) serves to dissipate heat generated by the coil (50) to the outside.

Description

TECHNICAL FIELD

[0001] The present utility model relates to the field of portable chargers, in particular a wireless portable charger. STATE OF THE ART

[0002] Portable chargers are indispensable items in modern life. They allow you to charge devices such as mobile phones, tablets, and headphones. However, using multiple ports when charging a device with a portable charger often leads to a mess of data cables, which can be annoying. Power banks with wireless charging function, however, offer a solution to this problem. However, wireless portable chargers generate considerable heat when charging devices. If this heat is not dissipated in a timely manner, it can lead to reduced charging performance of the portable charger, scalding to users, or even a fire hazard. Therefore, the present utility model provides a wireless portable charger that can effectively solve the above problem. CONTENT OF THE PRESENT UTILITY MODEL

[0003] To overcome the disadvantage of the prior art, the problem is solved according to the present utility model by the following technical solution: A wireless portable charger comprises a first housing, a second housing, a heat dissipation housing, a battery, and a coil, wherein the first housing is connected to the second housing to form a receiving space in which the battery is arranged; wherein the heat dissipation housing is connected to one of the first housing and the second housing, wherein the coil is electrically connected to the battery to wirelessly charge an external device; wherein the coil is abutted against the heat dissipation housing, and the heat dissipation housing serves to dissipate heat generated by the coil to the outside.

[0004] Furthermore, it is provided that the first housing and the second housing are detachably connected to one another.

[0005] Furthermore, it is provided that the heat dissipation housing is removably placed on top of the first housing, covering it.

[0006] Furthermore, it is provided that a round first projection for supporting the coil is provided on the outside of the heat dissipation housing, wherein a first hub hole is provided in the center of the first projection and a second hub hole is provided in the center of the coil, wherein the coil is arranged on the first projection, and wherein the first hub hole and the second hub hole coincide in position.

[0007] Furthermore, the wireless portable charger further comprises an annular magnet for adhering to an external device; wherein a second annular groove is provided on the heat dissipation housing around the first protrusion, in which the magnet is arranged.

[0008] Furthermore, it is provided that the inside of the heat dissipation housing is provided with an annular projection at a position corresponding to the second annular groove; wherein a first annular groove is provided on the outside of the first housing, the dimension of which is matched to the annular projection, and wherein, when the heat dissipation housing is mounted on the first housing, the annular projection engages in the first annular groove.

[0009] Furthermore, it is provided that at the position of the circle center of the first annular groove, a hollow first hub is provided, onto which the first hub hole of the heat dissipation housing and the second hub hole of the coil are pushed.

[0010] It is further provided that the wireless portable charger further comprises a cover plate which is dimensionally matched to the second annular groove, wherein a second hub is provided centrally on the inside of the cover plate, which second hub is provided on one side with a protruding first locking block, wherein the second hub penetrates the first hub hole and the second hub hole and is inserted into the hollow first hub, wherein the first locking block locks onto the inner side wall of the first housing, so that the cover plate is placed thereon, covering the coil, and is mounted in the second annular groove.

[0011] Furthermore, it is provided that a plurality of first connecting elements are provided on the inner edge of the cover plate, each of which is provided with a second locking block on one side; wherein second connecting holes are provided in the second annular groove and first connecting holes are provided in the first annular groove, the position of which corresponds to the second connecting holes, wherein the first connecting elements are inserted into the second connecting holes and the first connecting holes, and wherein the second locking blocks lock onto the inner side wall of the first housing.

[0012] Furthermore, it is provided that the magnet is provided with an extended end on which a bulge is provided; wherein a first through-hole is provided in the first annular groove and a second through-hole is provided in the second annular groove at a position corresponding to the first through-hole; wherein a locking recess is provided on the inside of the first housing, which is matched to the bulge, wherein after passing the extended end through the second through-hole and the first through-hole, the bulge engages in the locking recess, whereby the magnet is mounted in the second annular groove.

[0013] It is further provided that the wireless portable charger further comprises a control board which is arranged in the receiving space and is electrically connected to the battery.

[0014] Furthermore, a first cable through-hole is provided in the first annular groove, and a second cable through-hole is provided in the second annular groove at a position corresponding to the first cable through-hole; wherein the coil is electrically connected to the control board via the first cable through-hole and the second cable through-hole.

[0015] Furthermore, it is provided that an indicator light is provided on the control board; wherein the second housing is provided with a recess at a position corresponding to the indicator light.

[0016] Furthermore, it is provided that a power interface is also provided on the control board.

[0017] Furthermore, it is provided that a power switch is provided on the second housing, which is electrically connected to the control board.

[0018] Furthermore, it is provided that a second connecting element is provided on the inside of the second housing, which is provided with a third locking block at one end; wherein a first plug-in recess is provided on the first housing, in which a third connecting hole is provided; wherein the second connecting element is inserted into the first plug-in recess and the third locking block locks into the third connecting hole in order to connect the first housing to the second housing; wherein the third locking block is released from the third connecting hole in order to remove the second connecting element from the first plug-in recess.

[0019] Furthermore, it is provided that a third connecting element is provided on the heat dissipation housing, in which a fourth connecting hole is provided; wherein a second plug-in recess is provided on the first housing, in which a fourth locking block is provided, wherein the third connecting element is inserted into the second plug-in recess and the fourth locking block locks into the fourth connecting hole in order to connect the heat dissipation housing to the first housing; wherein the fourth locking block is released from the fourth connecting hole in order to remove the third connecting element from the second plug-in recess.

[0020] It is further provided that a part of the heat dissipation housing is arranged on the outermost side of the wireless portable charger.

[0021] Furthermore, it is provided that several heat dissipation recesses are provided on the surface of the heat dissipation housing.

[0022] It is further provided that the wireless portable charger further comprises thermal insulation plates arranged on both sides of the battery; wherein the thermal insulation plates are made of aerogel.

[0023] Furthermore, it is provided that several strip-shaped elevations are provided on the surface of the cover plate.

[0024] Advantageous Effects of the Present Utility Model: The wireless portable charger according to the present utility model is equipped with a metallic heat dissipation case, which is capable of efficiently dissipating the heat generated by the coil in the wireless portable charger when the user uses the wireless portable charger. This prevents the wireless portable charger from delivering reduced performance due to excessive temperature, scalding the user, or even spontaneously igniting. The heat dissipation case provides the wireless portable charger with excellent heat dissipation performance, improves the user experience, and increases the safety of the wireless portable charger. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to better explain the technical solutions in embodiments according to the present utility model, the accompanying drawings for describing the embodiments are briefly described below, it being understood that the following drawings represent only some of the embodiments of the utility model and that it is possible for average persons skilled in the art to obtain further drawings from such drawings without inventive steps.

[0026] The present utility model will be discussed in more detail below with reference to the accompanying drawings based on the exemplary embodiments. Fig. 1 is a schematic exploded view of the present utility model and a schematic three-dimensional structural view of an embodiment; Fig. 2 an enlarged view of point A according to Fig. 1; Fig. 3 an enlarged view of point B according to Fig. 1; Fig. 4 is a schematic exploded view of the present utility model from a different angle; Fig. 5 an enlarged view of point C according to Fig. 4; Fig. 6 an enlarged view of point D according to Fig. 4; Fig. 7 is a schematic three-dimensional structural view of a first housing according to the present utility model; Fig. 8 an enlarged view of point F according to Fig. 7; Fig. 9 a schematic three-dimensional structural view of the present utility model; Fig. 10 is a schematic three-dimensional structural view of the present utility model from a different angle; Fig. 11 is a schematic exploded view of the present utility model from a different angle. DETAILED DESCRIPTION

[0027] Below, the technical solutions of the embodiments of the present utility model will be fully and clearly explained in such embodiments with reference to the accompanying drawings. It should be understood that the described embodiments represent some of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art from the embodiments of the utility model without inventive steps are also within the scope of the utility model.

[0028] It will be Fig.1 to 11. The present utility model provides a wireless portable charger 90. It includes a first housing 10, a second housing 20, a heat dissipation housing 30, a battery 40, and a coil 50. The first housing 10 is connected to the second housing 20 to form a receiving space in which the battery 40 is arranged. The heat dissipation housing 30 is connected to one of the first housing 10 and the second housing 20, and a part of the heat dissipation housing 30 is arranged on the outermost side of the wireless portable charger 90. The coil 50 is electrically connected to the battery 40 for wirelessly charging an external device. The coil 50 abuts against the heat dissipation housing 30, and the heat dissipation housing 30 serves to dissipate heat generated by the coil 50 and the battery 40 to the outside. It is understood that in this embodiment, a part of the heat dissipation case 30 is arranged on the outermost side of the wireless portable charger 90.However, in other embodiments, the heat dissipation housing 30 may be placed in other positions, or another housing or cover plate may be mounted outside the heat dissipation housing 30. The only requirement is that the coil 50 rests against the heat dissipation housing 30, and the heat dissipation housing 30 serves to dissipate the heat generated by the coil 50 and the battery 40 to the outside.

[0029] The wireless portable charger according to the present invention is equipped with a metallic heat dissipation case, which is capable of efficiently dissipating the heat generated by the coil and battery inside the wireless portable charger when the user uses the wireless portable charger. This prevents the wireless portable charger from delivering reduced performance due to excessive temperature, scalding the user, or even spontaneous combustion. The heat dissipation case provides the wireless portable charger with excellent heat dissipation performance, improves the user experience, and increases the safety of the wireless portable charger.

[0030] It is understood that by arranging the battery inside the wireless portable charger and abutting the first housing and the second housing, and by connecting the heat dissipation housing to the first housing or the second housing and partially connecting the coil, during operation of the wireless portable charger, the heat generated by the coil and the battery is transferred to the heat dissipation housing, which then dissipates the heat to the external environment. The heat dissipation housing can be made of heat-dissipating material such as aluminum, iron, or silver.

[0031] Furthermore, it is provided that the first housing 10 and the second housing 20 are detachably connected to one another.

[0032] It should be understood that by detachably connecting the first housing and the second housing, conventional fasteners such as screws or rivets are eliminated. This facilitates quick assembly and disassembly, simplifies the production and assembly process, and increases efficiency.

[0033] Furthermore, it is provided that the heat dissipation housing 30 is removably placed on the first housing 10, covering it.

[0034] It should be noted that by detachably connecting the heat dissipation housing and the first housing, conventional fasteners such as screws or rivets are eliminated. This facilitates quick assembly and disassembly, simplifies the production and assembly process, and increases efficiency.

[0035] Furthermore, a round first protrusion 31 for supporting the coil 50 is provided on the outside of the heat dissipation housing 30. A first boss hole 31a is provided in the center of the first protrusion 31, and a second boss hole 51 is provided in the center of the coil 50. The coil 50 is arranged on the first protrusion 31. The first boss hole 31a and the second boss hole 51 are positionally aligned.

[0036] It is understood that by placing the coil on the first protrusion to establish a connection between the coil and the heat dissipation housing, the heat generated by the coil during operation is transferred to the heat dissipation housing. By providing the second hub hole in the center of the coil and the first hub hole in the center of the first protrusion, it is possible to facilitate attachment of the coil and the heat dissipation housing to a hub body, simplify assembly, and achieve a simple and practical design.

[0037] Furthermore, the wireless portable charger 90 further includes an annular magnet 60 for adhering to an external device. A second annular groove 32 is provided on the heat dissipation housing 30 around the first protrusion 31, in which the magnet 60 is disposed.

[0038] It's understood that by equipping the wireless portable charger with a magnet, the wireless portable charger achieves magnetic adhesion. This allows it to adhere to an external charging device and provides the user with a more diverse usage experience.

[0039] Furthermore, the inside of the heat dissipation housing 30 is provided with an annular projection 33 at a position corresponding to the second annular groove 32. A first annular groove 11 is provided on the outside of the first housing 10, the dimensions of which match the annular projection 33. When the heat dissipation housing 30 is mounted on the first housing 10, the annular projection 33 engages in the first annular groove 11.

[0040] It is understood that by matching the shape and dimension of the annular projection to the first annular groove, when the heat dissipation housing is mounted on the first housing, the annular projection can engage in the first annular groove, thereby increasing the stability of the attachment of the heat dissipation housing to the first housing.

[0041] Furthermore, it is provided that at the position of the circle center of the first annular groove 11, a hollow first hub 11a is provided, onto which the first hub hole 31a of the heat dissipation housing 30 and the second hub hole 51 of the coil 50 are pushed.

[0042] It is understood that by sliding the second hub hole of the coil and the first hub hole of the heat dissipation housing onto the first hub, fixing the coil to the heat dissipation housing and a simple and practical design are enabled.

[0043] Furthermore, the wireless portable charger 90 further comprises a cover plate 70, the dimensions of which are matched to the second annular groove 32. A second hub 71 is provided centrally on the inside of the cover plate 70, which is provided on one side with a protruding first locking block 72. The second hub 71 penetrates the first hub hole 31a and the second hub hole 51 and is inserted into the hollow first hub 11a. The first locking block 72 locks onto the inner wall of the first housing 10, so that the cover plate 70 covers the coil 50 and is mounted in the second annular groove 32.

[0044] It is understood that the cover plate is connected to the first housing by inserting the second hub into the hollow first hub in the center of the cover plate and by allowing the first locking block provided on the second hub to engage the inner side wall of the first housing. The second hub is designed to be elastic, which facilitates assembly and disassembly of the cover plate for the user.

[0045] Furthermore, a plurality of first connecting elements 73 are provided on the inner edge of the cover plate 70, each of which is provided with a second locking block 74 on one side. Second connecting holes 32a are provided in the second annular groove 32, and first connecting holes 11b are provided in the first annular groove 11, which correspond in position to the second connecting holes 32a. The first connecting elements 73 are inserted into the second connecting holes 32a and the first connecting holes 11b. The second locking blocks 74 lock onto the inner side wall of the first housing 10.

[0046] It is understood that, since the positions of the plurality of first connecting elements each correspond unambiguously to the positions of the plurality of second connecting holes, when the first connecting elements are inserted into the second connecting holes, the second locking blocks provided on the first connecting elements can lock onto the inner side wall of the first housing, thereby further securing the cover plate. The first connecting elements are designed to be elastic, which enables quick assembly and disassembly of the cover plate.

[0047] Furthermore, the magnet 60 is provided with an extended end on which a bulge 61 is provided. A first through-hole 11d is provided in the first annular groove 11, and a second through-hole 32b is provided in the second annular groove 32 at a position corresponding to the first through-hole 11d. A locking recess 12 is provided on the inside of the first housing 10, which is aligned with the bulge 61. After passing the extended end through the second through-hole 32b and the first through-hole 11d, the bulge 61 engages the locking recess 12, thereby mounting the magnet 60 in the second annular groove 32.

[0048] It is understood that after the extended end of the magnet is passed through the first through-hole and the second through-hole, the bulge on the extended end can engage with the locking recess inside the first housing, thus securing the magnet in the second annular groove. This achieves a simple and practical design and facilitates quick assembly and disassembly.

[0049] It is further provided that the wireless portable charger 90 further comprises a control board 80 which is arranged in the receiving space and is electrically connected to the battery 40.

[0050] It is understood that the control board can control the powering and powering down of the wireless portable charger and can also convert direct current into alternating current and then transmit it to the coil, causing the coil to generate a magnetic field.

[0051] Furthermore, a first cable through-hole 11c is provided in the first annular groove 11, and a second cable through-hole 32c is provided in the second annular groove 32 at a position corresponding to the first cable through-hole 11c. The coil 50 is electrically connected to the control board 80 via the first cable through-hole 11c and the second cable through-hole 32c.

[0052] It is understood that one end of the coil is passed through the first cable through hole and the second cable through hole and then connected to the control board, which ensures reasonable space utilization and simple and practical design.

[0053] Furthermore, an indicator light 81 is provided on the control board 80. The second housing 20 is provided with a recess 24 at a position corresponding to the indicator light 81.

[0054] It should be understood that several indicator lights are arranged one after the other. The higher the battery charge level, the more indicator lights illuminate. The lower the battery charge level, the fewer indicator lights illuminate.

[0055] In some embodiments, a single indicator light may be provided whose color changes depending on the battery charge level.

[0056] The user can see the indicator light through the cutout and thus know the battery charge level, which improves the user experience.

[0057] Furthermore, it is provided that a power interface 82 is also provided on the control board 80.

[0058] It is understood that the user can connect an external power cable to charge the wireless portable charger via the power interface. The power interface can be common connectors such as USB, Type-C, or similar, but is not limited to these.

[0059] Furthermore, it is provided that a power switch 21 is provided on the second housing 20, which is electrically connected to the control board 80.

[0060] It is understood that by pressing the power button, the user can control the wireless portable charger to start or stop charging, which provides good user experience.

[0061] Furthermore, a second connecting element 22 is provided on the inside of the second housing 20, which second connecting element 22 is provided with a third locking block 23 at one end. A first plug-in recess 13 is provided on the first housing 10, in which a third connecting hole 13a is provided. The second connecting element 22 is inserted into the first plug-in recess 13, and the third locking block 23 locks into the third connecting hole 13a to connect the first housing 10 to the second housing 20. The third locking block 23 is released from the third connecting hole 13a to remove the second connecting element 22 from the first plug-in recess 13.

[0062] It is understood that a plurality of second connecting elements and a plurality of first plug-in recesses are provided. The positions of the plurality of second connecting elements each correspond unambiguously to the positions of the plurality of first plug-in recesses. After inserting the second connecting elements into the respective first plug-in recesses, the third locking blocks provided on the second connecting elements lock into the respective third connecting holes within the first plug-in recesses, thereby locking the first housing to the second housing. The second connecting elements are designed to be elastic. When the third locking blocks are released from the third connecting holes, the second connecting elements are pulled out of the first plug-in recesses, thereby separating the first housing from the second housing.

[0063] Furthermore, a third connecting element 34 is provided on the heat dissipation housing 30, in which a fourth connecting hole 35 is provided. A second plug-in recess 14 is provided on the first housing 10, in which a fourth locking block 15 is provided. The third connecting element 34 is inserted into the second plug-in recess 14, and the fourth locking block 15 locks into the fourth connecting hole 35 to connect the heat dissipation housing 30 to the first housing 10. The fourth locking block 15 is detached from the fourth connecting hole 35 to remove the third connecting element 34 from the second plug-in recess 14.

[0064] It is understood that a plurality of third connecting elements and a plurality of second plug-in recesses are provided. The positions of the plurality of third connecting elements each correspond unambiguously to the positions of the plurality of second plug-in recesses. After inserting the third connecting elements into the respective second plug-in recesses, the fourth locking blocks provided in the second plug-in recesses engage in the respective fourth connecting holes on the third connecting elements, thereby locking the heat dissipation housing to the first housing. When the fourth locking blocks are released from the fourth connecting holes, the third connecting elements are pulled out of the second plug-in recesses, thereby separating the heat dissipation housing from the first housing.

[0065] Furthermore, it is provided that a plurality of heat dissipation recesses 36 are provided on the surface of the heat dissipation housing 30.

[0066] It is understood that the heat dissipation holes can increase the heat dissipation area of the heat dissipation case, further improving the heat dissipation performance of the heat dissipation case. At the same time, the heat dissipation holes reduce the contact area between the heat dissipation case and an external device when placed on the wireless portable charger for charging, thereby reducing heat accumulation and increasing heat dissipation performance.

[0067] Furthermore, the wireless portable charger 90 further includes thermal insulation plates 91 arranged on both sides of the battery 40. The thermal insulation plates 91 may be made of aerogel.

[0068] It should be noted that there are two thermal insulation plates. When the wireless portable charger is in use, the battery generates heat. The thermal insulation plates are positioned on both sides of the battery and cover the main surface of the battery. They effectively block heat transfer from the battery to the outer casing, improving the user experience. At the same time, the thermal insulation plates serve as a buffer and can protect the battery.

[0069] Furthermore, it is provided that several strip-shaped elevations 75 are provided on the surface of the cover plate 70.

[0070] It is understood that the multiple strip-shaped protrusions on the surface of the cover plate can increase the surface area of the cover plate, which increases the heat dissipation area and further enhances the heat dissipation performance.

Claims

[1] A wireless portable charger (90) comprising a first housing (10), a second housing (20), a heat dissipation housing (30), a battery (40), and a coil (50), wherein the first housing (10) is connected to the second housing (20) to form a receiving space in which the battery (40) is arranged; wherein the heat dissipation housing (30) is connected to one of the first housing (10) and the second housing (20), wherein the coil (50) is electrically connected to the battery (40) to wirelessly charge an external device; wherein the coil (50) abuts against the heat dissipation housing (30), and the heat dissipation housing (30) serves to dissipate heat generated by the coil (50) to the outside. [2] The wireless portable charger (90) according to claim 1, wherein the first housing (10) and the second housing (20) are detachably connected to each other; wherein a second connecting member (22) is provided on the inside of the second housing (20), the second connecting member (22) being provided with a third engaging block (23) at one end; wherein a first plug-in recess (13) is provided on the first housing (10) in which a third connecting hole (13a) is provided; wherein the second connecting member (22) is inserted into the first plug-in recess (13), and the third engaging block (23) engages the third connecting hole (13a) to connect the first housing (10) to the second housing (20); wherein the third engaging block (23) is detached from the third connecting hole (13a) to remove the second connecting member (22) from the first plug-in recess (13). [3] The wireless portable charger (90) according to claim 1, wherein the heat dissipation case (30) is detachably fitted on the first housing (10) to cover it; wherein a third connecting member (34) is provided on the heat dissipation case (30) in which a fourth connecting hole (35) is provided; wherein a second plug-in recess (14) is provided on the first housing (10) in which a fourth locking block (15) is provided, wherein the third connecting member (34) is inserted into the second plug-in recess (14) and the fourth locking block (15) is locked into the fourth connecting hole (35) to connect the heat dissipation case (30) to the first housing (10); wherein the fourth locking block (15) is detached from the fourth connecting hole (35) to remove the third connecting member (34) from the second plug-in recess (14). [4] The wireless portable charger (90) according to claim 1, wherein a circular first protrusion (31) for supporting the coil (50) is provided on the outer side of the heat dissipation case (30), a first boss hole (31a) is provided in the center of the first protrusion (31) and a second boss hole (51) is provided in the center of the coil (50), the coil (50) being arranged on the first protrusion (31), the first boss hole (31a) and the second boss hole (51) being positionally aligned; wherein the wireless portable charger (90) further comprises an annular magnet (60) for adhering to an external device; wherein a second annular groove (32) in which the magnet (60) is arranged is provided on the heat dissipation case (30) around the first protrusion (31). [5] The wireless portable charger (90) according to claim 4, wherein the inside of the heat dissipation housing (30) is provided with an annular projection (33) at a position corresponding to the second annular groove (32); wherein a first annular groove (11) is provided on the outside of the first housing (10), the dimension of which matches the annular projection (33), wherein when the heat dissipation housing (30) is mounted on the first housing (10), the annular projection (33) engages in the first annular groove (11); wherein a hollow first boss (11a) is provided at the position of the circle center of the first annular groove (11), onto which the first boss hole (31a) of the heat dissipation housing (30) and the second boss hole (51) of the coil (50) are pushed. [6] The wireless portable charger (90) according to claim 7, wherein the wireless portable charger (90) further comprises a cover plate (70) dimensionally matched to the second annular groove (32), wherein a second hub (71) is provided centrally on the inner side of the cover plate (70), the second hub (71) being provided on one side with a protruding first locking block (72), wherein the second hub (71) penetrates the first hub hole (31a) and the second hub hole (51) and is inserted into the hollow first hub (11a), wherein the first locking block (72) is locked to the inner side wall of the first housing (10), so that the cover plate (70) is placed thereon, covering the coil (50) and mounted in the second annular groove (32); wherein a plurality of strip-shaped projections (75) are provided on the surface of the cover plate (70). [7] A wireless portable charger (90) according to claim 8, wherein a plurality of first connecting members (73) are provided on the inner edge of the cover plate (70), each of which is provided with a second locking block (74) on one side; wherein second connecting holes (32a) are provided in the second annular groove (32), and first connecting holes (11b) positionally corresponding to the second connecting holes (32a) are provided in the first annular groove (11), wherein the first connecting members (73) are inserted into the second connecting holes (32a) and the first connecting holes (11b), and wherein the second locking blocks (74) are locked to the inner side wall of the first housing (10). [8] The wireless portable charger (90) according to claim 6, wherein the magnet (60) is provided with an extended end on which a bulge (61) is provided; wherein a first through-hole (11d) is provided in the first annular groove (11), and a second through-hole (32b) is provided in the second annular groove (32) at a position corresponding to the first through-hole (11d); wherein a locking recess (12) is provided on the inside of the first housing (10) and is aligned with the bulge (61), wherein after passing the extended end through the second through-hole (32b) and the first through-hole (11d), the bulge (61) is engaged with the locking recess (12), whereby the magnet (60) is mounted in the second annular groove (32). [9] The wireless portable charger (90) according to claim 6, wherein the wireless portable charger (90) further comprises a control board (80) arranged in the receiving space and electrically connected to the battery (40); wherein a first cable through-hole (11c) is provided in the first annular groove (11), and a second cable through-hole (32c) is provided in the second annular groove (32) at a position corresponding to the first cable through-hole (11c); wherein the coil (50) is electrically connected to the control board (80) via the first cable through-hole (11c) and the second cable through-hole (32c); wherein an indicator light (81) is provided on the control board (80); wherein the second housing (20) is provided with a recess (24) at a position corresponding to the indicator light (81); wherein a power interface (82) is further provided on the control board (80);and wherein a power switch (21) is provided on the second housing (20) and is electrically connected to the control board (80); [10] The wireless portable charger (90) according to claim 1, wherein a part of the heat dissipation case (30) is disposed on the outermost side of the wireless portable charger (90), and a plurality of heat dissipation recesses (36) are provided on the surface of the heat dissipation case (30); wherein the wireless portable charger (90) further comprises heat insulating plates (91) disposed on both sides of the battery (40); and wherein the heat insulating plates (91) are made of aerogel.

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