Magnetic wireless charger

Abstract

The utility model discloses a magnetic attraction wireless charger which comprises a magnetic attraction charging assembly and a TEC refrigeration wafer. The magnetic attraction charging assembly comprises an annular magnet and a wireless charging coil. The wireless charging coil is used for charging electronic equipment; the front surface of the annular magnet is used for magnetically attracting a charging surface of electronic equipment; the cold face of the TEC refrigeration wafer abuts against the back face of the annular magnet, and heat of the electronic equipment is dissipated through the annular magnet. According to the magnetic attraction wireless charger provided by the utility model, through the arrangement of the TEC refrigeration wafer, when the magnetic attraction wireless charger charges the magnetic attraction electronic equipment, the TEC refrigeration wafer utilizes cold conduction to carry out heat dissipation on the charging surface of the electronic equipment and the frame of the electronic equipment, so that the problem of poor heat dissipation effect is solved, and the charging efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, and in particular to a magnetic wireless charger. Background Technology

[0002] A wireless charger is a device that uses the principle of electromagnetic induction for charging, similar to a transformer. It involves placing a coil at both the transmitting and receiving ends. The transmitting coil emits electromagnetic signals under the influence of electricity, while the receiving coil receives these signals and converts them into electrical current, thus achieving wireless charging. Wireless charging technology is a special power supply method that eliminates the need for power cords. It relies on electromagnetic waves to propagate and convert electromagnetic energy into electrical energy, ultimately achieving wireless charging.

[0003] With the rise and popularization of wireless charging, electronic devices tend to overheat during the charging process, resulting in low charging efficiency. Currently, the main solution to the overheating problem is to use fans to dissipate heat from electronic devices, but this method is not very effective. Therefore, how to solve the problem of ineffective heat dissipation is an urgent issue that needs to be addressed by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides a magnetic wireless charger, which greatly improves the heat dissipation effect of the magnetic wireless charger by setting the TEC cooling chip 5.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A magnetic wireless charger includes: a magnetic charging component and a TEC cooling chip;

[0007] The magnetic charging assembly includes: a ring magnet and a wireless charging coil; the wireless charging coil is used to charge electronic devices.

[0008] The front side of the ring magnet is used to magnetically attract the charging surface of the electronic device; the cold side of the TEC cooling chip abuts against the back side of the ring magnet and dissipates heat from the electronic device through the ring magnet.

[0009] Preferably, the magnetic charging assembly further includes: a PCBA circuit board and a face cover;

[0010] The TEC cooling chip is electrically connected to the PCBA circuit board, the back of the cover abuts against the front of the annular magnet, and the front of the cover is used to fit the charging surface.

[0011] Preferably, the faceplate, the annular magnet, and the TEC cooling chip are stacked from top to bottom, with a gap between the faceplate and the TEC cooling chip, and the gap is filled with thermally conductive adhesive.

[0012] Preferably, the TEC cooling chip is ring-shaped to match the ring magnet.

[0013] Preferably, the material of the cover is a cold-conducting material or a material with a high thermal conductivity.

[0014] Preferably, it further includes: an air-cooled component;

[0015] The air-cooling component is arranged opposite to the hot surface of the TEC cooling chip, and the air outlet of the air-cooling component is directed to the charging surface of the electronic device.

[0016] Preferably, the air-cooling assembly includes: a heat dissipation bracket and a centrifugal fan;

[0017] The heat dissipation bracket has an air duct, and the outlet of the air duct leads to the charging surface of the electronic device; the centrifugal fan is mounted on the heat dissipation bracket, and the air outlet of the centrifugal fan is connected to the air duct.

[0018] Preferably, the heat dissipation bracket includes: a support surface and multiple heat dissipation fins, the heat dissipation fins being disposed on a first surface of the support surface, and the air duct being formed between adjacent heat dissipation fins;

[0019] The heat dissipation fins are arranged circumferentially around the support surface so that a fan mounting groove for mounting the centrifugal fan is formed in the middle of the heat dissipation bracket.

[0020] The second side of the support surface is used to abut the hot side of the TEC cooling chip.

[0021] Preferably, it further includes: a bottom shell and a front shell with a mounting groove;

[0022] Both the annular magnet and the wireless charging coil are installed in the mounting slot;

[0023] The front shell has a first locking structure on the side facing away from the mounting groove, and the bottom shell has a second locking structure; the first locking structure and the second locking structure are engaged so that the bottom shell covers the front shell.

[0024] Preferably, the first locking structure is a locking protrusion, and the second locking structure is a locking groove, wherein the locking protrusion can be locked into the locking groove.

[0025] As can be seen from the above technical solution, the magnetic wireless charger provided by this utility model, through the setting of the TEC cooling chip, enables the magnetic wireless charger to charge the magnetic electronic device while the TEC cooling chip uses cold conduction to dissipate heat from the charging surface and the frame of the electronic device, thus solving the problem of poor heat dissipation and improving charging efficiency. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 An exploded view of the magnetic wireless charger provided in this embodiment of the utility model;

[0028] Figure 2 A cross-sectional view of a magnetic wireless charger provided in an embodiment of this utility model;

[0029] Figure 3 A first perspective view of a magnetic wireless charger provided for an embodiment of this utility model;

[0030] Figure 4 A second perspective view of the magnetic wireless charger provided in an embodiment of this utility model.

[0031] The meanings of the various reference numerals in the figure are as follows:

[0032] Among them, 1 is the front cover; 2 is the ring magnet; 3 is the wireless charging coil; 4 is the PCBA circuit board; 5 is the TEC cooling chip; 6 is the heat dissipation bracket; 61 is the support surface; 62 is the heat dissipation fins; 63 is the fan mounting slot; 7 is the front shell; 71 is the mounting slot; 8 is the centrifugal fan; 9 is the bottom shell; and 10 is the mobile phone. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] The magnetic wireless charger provided in this embodiment of the utility model, such as Figures 1-4 As shown, it includes: a magnetic charging component and a TEC cooling chip 5;

[0035] The magnetic charging assembly includes: a ring magnet 2 and a wireless charging coil 3; the wireless charging coil 3 is used to charge electronic devices; it should be noted that the electronic devices include, but are not limited to, mobile phones or tablets; it should also be noted that the ring magnet can be a segmented ring magnet or an integrated ring magnet.

[0036] The front side of the ring magnet 2 is used to magnetically attract the charging surface of the electronic device; the cold side of the TEC cooling chip 5 abuts against the back side of the ring magnet 2 and dissipates heat from the electronic device through the ring magnet 2.

[0037] In the above technical solution, by setting the TEC cooling chip 5, the magnetic wireless charger can heat the magnetic electronic device by using cold conduction while charging the magnetic electronic device, thus solving the problem of poor heat dissipation and improving charging efficiency.

[0038] Optimize the above technical solutions, such as Figure 1 and Figure 2 As shown, the magnetic charging assembly also includes: PCBA circuit board 4 and face cover 1;

[0039] The TEC cooling chip 5 is electrically connected to the PCBA circuit board 4. The back of the cover 1 abuts against the front of the ring magnet 2, and the front of the cover 1 is used to fit the charging surface.

[0040] In the above technical solution, the TEC cooling chip 5 and the ring magnet 2 are in contact, and the ring magnet 2 is attached to the cover 1. The cooling energy of the TEC cooling chip 5 can be conducted to the charging surface of the electronic device through the ring magnet 2 and the cover 1 in sequence, and heat it up.

[0041] The above technical solution is optimized by stacking the faceplate 1, the ring magnet 2, and the TEC cooling chip 5 from top to bottom. There is a gap between the faceplate 1 and the TEC cooling chip 5, which is filled with thermally conductive adhesive. The thermally conductive adhesive allows some of the cooling energy of the TEC cooling chip 5 to be transferred to the faceplate 1 through the thermally conductive adhesive, thereby improving the heat dissipation efficiency of the electronic device.

[0042] In an alternative embodiment, such as Figure 1 As shown, the TEC cooling chip 5 is ring-shaped to match the ring magnet 2, thus maximizing the contact area between the ring magnet 2 and the TEC cooling chip 5, which is beneficial for the transfer of cold energy and thus improves the heat dissipation efficiency of electronic devices. It should be noted that when charging electronic devices, the edge of the ring-shaped TEC cooling chip 5 is close to the frame of the electronic device, which is beneficial for the rapid heat dissipation of the frame of the electronic device and prevents the frame of the electronic device from feeling hot to the touch during the charging process, thus improving the user experience of wireless charging.

[0043] In an optional embodiment, the material of the cover 1 is a material that conducts cold or has a high thermal conductivity. Preferably, the cover 1 is made of plastic or glass.

[0044] In an alternative embodiment, such as Figure 1 and Figure 2 As shown, the air-cooled component includes a heat sink bracket 6 and a centrifugal fan 8; preferably, the heat sink bracket 6 is made of aluminum alloy, which can improve the heat dissipation effect.

[0045] The heat dissipation bracket 6 has an air duct, and the outlet of the air duct leads to the charging surface of the electronic device; the centrifugal fan 8 is installed on the heat dissipation bracket 6, and the air outlet of the centrifugal fan 8 is connected to the air duct.

[0046] In the above technical solution, the heat dissipation bracket 6 and centrifugal fan 8 are used to further dissipate heat from the charging surface of the electronic device and improve heat dissipation efficiency.

[0047] To optimize the above technical solution, the heat dissipation bracket 6 includes: a support surface 61 and multiple heat dissipation fins 62. The heat dissipation fins 62 are disposed on the first surface of the support surface 61, and an air duct is formed between adjacent heat dissipation fins 62.

[0048] The heat dissipation fins 62 are arranged circumferentially around the support surface 61 so that a fan mounting groove 63 for mounting the centrifugal fan 8 is formed in the middle of the heat dissipation bracket 6.

[0049] The second surface of the support surface 61 is used to abut the hot surface of the TEC cooling chip 5.

[0050] In the above technical solution, when the magnetic wireless charger is charging the electronic device, when further heat dissipation of the electronic device is required, the centrifugal fan 8 is activated. The air generated by the centrifugal fan 8 is blown onto the charging surface and frame of the electronic device through the air outlet and air duct of the centrifugal fan 8 to dissipate heat.

[0051] In an optional embodiment, it further includes: a bottom shell 9 and a front shell 7 provided with a mounting groove 71;

[0052] Both the ring magnet 2 and the wireless charging coil 3 are installed in the mounting slot 71;

[0053] The front shell 7 has a first locking structure on the side facing away from the mounting groove 71, and the bottom shell 9 has a second locking structure; the first locking structure and the second locking structure are engaged so that the bottom shell 9 covers the front shell 7.

[0054] In the above technical solution, the first and second locking structures enable the front shell 7 and the bottom shell 9 to be quickly engaged, improving the product assembly efficiency.

[0055] To optimize the above technical solution and further improve the product assembly efficiency, the first locking structure is a locking protrusion, and the second locking structure is a locking groove. The locking protrusion can be inserted into the locking groove.

[0056] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features.

[0057] The following is a further description of this solution with reference to specific embodiments:

[0058] The key points and intended points of protection of this utility model are as follows:

[0059] 1. The form of this magnetic wireless charger is not limited to square or round.

[0060] Second, the use of this magnetic wireless charger is not limited to in-vehicle, portable, or desktop scenarios.

[0061] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A magnetic wireless charger, characterized by, The application relates to a magnetic attraction and charging assembly and a TEC refrigeration wafer (5). The magnetic attraction and charging assembly comprises a ring-shaped magnet (2) and a wireless charging coil (3); the wireless charging coil (3) is used for charging an electronic device. The front surface of the ring-shaped magnet (2) is used for magnetically attracting the charging surface of the electronic device; the cold surface of the TEC refrigeration wafer (5) abuts against the back surface of the ring-shaped magnet (2), and the ring-shaped magnet (2) is used for dissipating heat of the electronic device. The magnetic attraction and charging assembly further comprises a PCBA circuit board (4) and a surface cover (1).

2. The magnetic wireless charger of claim 1, wherein, The TEC refrigeration wafer (5) is electrically connected with the PCBA circuit board (4), the back surface of the surface cover (1) abuts against the front surface of the ring-shaped magnet (2), and the front surface of the surface cover (1) is used for adhering to the charging surface. The surface cover (1), the ring-shaped magnet (2) and the TEC refrigeration wafer (5) are stacked from top to bottom, there is a gap between the surface cover (1) and the TEC refrigeration wafer (5), and the gap is filled with heat-conducting glue.

3. The magnetic wireless charger of claim 2, wherein, The shape of the TEC refrigeration wafer (5) is ring-shaped and matched with the ring-shaped magnet (2).

4. The magnetic wireless charger of claim 2, wherein, The material of the surface cover (1) is cold-conducting material or material with high heat conductivity.

5. The magnetic wireless charger of claim 2, wherein, The application further relates to a wind cooling assembly.

6. The magnetic wireless charger of any one of claims 1-5, wherein, The wind cooling assembly is arranged opposite to the hot surface of the TEC refrigeration wafer (5), and the air outlet surface of the wind cooling assembly is connected to the charging surface of the electronic device. The wind cooling assembly comprises a heat dissipation support (6) and a centrifugal fan (8). The heat dissipation support (6) has an air duct, and the outlet of the air duct is connected to the charging surface of the electronic device; the centrifugal fan (8) is installed on the heat dissipation support (6), and the air outlet surface of the centrifugal fan (8) is connected to the air duct.

7. The magnetic wireless charger of claim 6, wherein, The heat dissipation support (6) comprises a supporting surface (61) and a plurality of heat dissipation fins (62); the heat dissipation fins (62) are arranged on the first surface of the supporting surface (61), and the air duct is formed between adjacent heat dissipation fins (62). The heat dissipation fins (62) are arranged around the periphery of the supporting surface (61), so that a fan mounting groove (63) is formed in the middle of the heat dissipation support (6) for mounting the centrifugal fan (8).

8. The magnetic wireless charger of claim 7, wherein, The second surface of the supporting surface (61) is used for abutting against the hot surface of the TEC refrigeration wafer (5). The application further relates to a bottom shell (9) and a surface shell (7) provided with a mounting groove (71). The ring-shaped magnet (2) and the wireless charging coil (3) are both installed in the mounting groove (71).

9. The magnetic wireless charger of claim 1, wherein, The surface shell (7) is provided with a first clamping structure on the surface away from the mounting groove (71), and the bottom shell (9) is provided with a second clamping structure; the first clamping structure and the second clamping structure are clamped to each other, so that the bottom shell (9) is covered on the surface shell (7). The first clamping structure is a clamping protrusion, the second clamping structure is a clamping groove, and the clamping protrusion can be clamped into the clamping groove. ​ ​ 10. The magnetic wireless charger of claim 9, wherein, ​

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