Cooling magnetic attraction wireless charging mobile power supply

Abstract

This utility model belongs to the field of mobile power bank technology, and particularly relates to a cooling magnetic wireless charging mobile power bank, including a front shell and a bottom shell. A switch button is installed on the top of the front shell, and a cooling aluminum sheet is fixedly connected to the bottom of the bottom shell. A battery cell is housed inside the front shell, and a heat dissipation aluminum plate is fixedly connected to the bottom of the battery cell. A wireless output coil is fixedly connected to the bottom of the heat dissipation aluminum plate, and a cooling mechanism is installed inside the heat dissipation aluminum plate. The cooling mechanism includes a first cooling chip, a second cooling chip, a first cooling fan, and a second cooling fan. This cooling magnetic wireless charging mobile power bank integrates the wireless charging module and the cooling and heat dissipation module within the mobile power bank, allowing the device to cool down simultaneously while charging wirelessly. This solves the problems of overheating during traditional wireless charging, such as operational lag, reduced charging power, and even forced shutdown, ensuring stable device operation.

Description

Technical Field

[0001] This utility model relates to the field of mobile power technology, specifically a cooling magnetic wireless charging mobile power supply. Background Technology

[0002] Currently, when mobile phones are charged using wireless charging power banks, both the phone and the power bank heat up rapidly due to power transmission. This overheating can lead to several adverse consequences, such as reduced charging power, and in severe cases, even forced shutdown of the device, damaging both the phone and the power bank. Existing products include similar items such as phone coolers and magnetic power banks, but their functions are relatively limited and cannot simultaneously meet the needs of wireless charging and cooling. This invention addresses this issue by combining the functions of both products to provide a more convenient and comprehensive functional product. Summary of the Invention

[0003] The purpose of this invention is to provide a cooling magnetic wireless charging power bank to solve the problem of overheating of both the phone and the power bank when using a wireless charging power bank, thereby achieving simultaneous cooling during charging.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cooling magnetic wireless charging power bank, comprising a front shell and a bottom shell. A switch button is installed on the top of the front shell, and a cooling aluminum sheet is fixedly connected to the bottom of the bottom shell. A battery cell is disposed inside the front shell, and a heat dissipation aluminum plate is fixedly connected to the bottom of the battery cell. A wireless output coil is fixedly connected to the bottom of the heat dissipation aluminum plate. A cooling mechanism is installed inside the heat dissipation aluminum plate. The cooling mechanism includes a first cooling chip, a second cooling chip, a first cooling fan, and a second cooling fan. The first and second cooling fans are both installed inside the heat dissipation aluminum plate, and the first and second cooling chips are both fixedly connected to the bottom of the heat dissipation aluminum plate.

[0005] Preferably, a PCBA and an interface are fixedly connected to the left side of the heat dissipation aluminum plate.

[0006] Preferably, the wireless output coil includes at least one positioning magnet, and the bottom of the inner wall of the bottom shell has a positioning hole, the number of which is the same as the number of positioning magnets.

[0007] Preferably, the interface is a Type-C input / output interface, which is used to connect to an external power source to charge the battery cell and to output the battery cell's electrical energy.

[0008] Preferably, the heating surface of the cooling chip is attached to the heat dissipation aluminum plate, the cooling fan is used to dissipate heat from the heat dissipation aluminum plate, and the cooling surface of the cooling chip faces the side where the wireless output coil is located.

[0009] Preferably, a heat insulation sheet is fixedly connected between the cooling chip and the bottom shell.

[0010] Preferably, the cooling aluminum sheet is attached to the cooling surface of the cooling chip, and the cooling aluminum sheet has a clearance area for avoiding the wireless output coil.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This cooling magnetic wireless charging power bank integrates the wireless charging module and the cooling module into the power bank, allowing the device to cool down simultaneously while charging. This solves the problems of sluggish operation, reduced charging power, or even forced shutdown caused by device overheating during traditional wireless charging, ensuring stable device operation. A switch button is provided to control the wireless charging and cooling functions to work independently or simultaneously, meeting the needs of different scenarios.

[0013] 2. This cooling magnetic wireless charging power bank features a cooling chip whose heating surface is bonded to a large-area heat-dissipating aluminum block, along with a cooling fan for forced heat dissipation. This rapidly dissipates the heat generated by the cooling chip during operation, keeping the temperature of the heat-dissipating aluminum plate within a reasonable range. This ensures the cooling chip operates continuously and stably, maintaining excellent cooling performance. A heat-conducting aluminum sheet is attached to the cooling surface of the cooling chip, and a clearance area is provided at the corresponding wireless output coil location. This design effectively transfers coolness to the phone and power bank through the large heat-conducting aluminum sheet, reducing device temperature, while avoiding interference from metal in the wireless charging area, thus ensuring normal charging operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the top structure of the portable power bank of this utility model;

[0015] Figure 2 This is a schematic diagram of the bottom structure of the portable power bank of this utility model;

[0016] Figure 3 This is an exploded view of the present invention;

[0017] Figure 4 This is a schematic diagram of the battery cell structure of this utility model.

[0018] In the diagram: 1. Front shell; 2. Bottom shell; 3. Switch button; 4. Cooling aluminum sheet; 5. Battery cell; 6. Heat insulation sheet; 7. Heat dissipation aluminum plate; 8. Wireless output coil; 9. Positioning magnet; 10. PCBA; 11. Interface; 12. Cooling fan one; 13. Cooling fan two; 14. Cooling chip one; 15. Cooling chip two. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a cooling magnetic wireless charging power bank, including a front shell 1 and a bottom shell 2, which are connected by snaps or screws to form an internal storage space. A switch button 3 is installed on the top of the front shell 1, and a cooling aluminum sheet 4 is fixedly connected to the bottom of the bottom shell 2. A battery cell 5 is installed inside the front shell 1, and a heat dissipation aluminum plate 7 is fixedly connected to the bottom of the battery cell 5. A wireless output coil 8 is fixedly connected to the bottom of the heat dissipation aluminum plate 7. A cooling mechanism is installed inside the heat dissipation aluminum plate 7, which includes a first cooling chip 14, a second cooling chip 15, a first cooling fan 12, and a second cooling fan 13. The first cooling fan 12 and the second cooling fan 13 are both installed inside the heat dissipation aluminum plate 7. The first cooling chip 14 and the second cooling chip 15 are both fixedly connected to the bottom of the heat dissipation aluminum plate 7. A PCBA 10 and an interface 11 are fixedly connected to the left side of the heat dissipation aluminum plate 7. A heat insulation sheet 6 is fixedly connected between the cooling chip and the bottom shell 2.

[0021] The wireless output coil 8 includes sixteen positioning magnets 9, and the bottom of the inner wall of the bottom shell 2 is provided with positioning holes, the number of positioning magnets 9 being the same as the number of positioning holes.

[0022] Interface 11 is a Type-C input / output interface, which is used to connect to an external power source to charge cell 5 and to output the power of cell 5.

[0023] PCBA10 includes a wireless charging control circuit and a cooling chip control circuit.

[0024] Controls the start / stop of the wireless charging module and the charging power.

[0025] The PCBA10 controls the operating status of the cooling module, including the power supply to and off of the cooling chip and the speed adjustment of the cooling fan. The PCBA10 is electrically connected to the wireless charging module, cooling module, power module, and switch button 3 via wires.

[0026] The heating surface of the cooling chip is attached to the heat sink aluminum plate 7, and thermal grease is applied between them. A cooling fan is used to dissipate heat from the heat sink aluminum plate 7. The cooling surface of the cooling chip faces the side where the wireless output coil 8 is located. The cooling aluminum sheet 4 is attached to the cooling surface of the cooling chip, and a clearance area is provided on the cooling aluminum sheet 4 to avoid the wireless output coil 8.

[0027] In a 25°C room temperature environment, when using this power bank on a mobile phone that is wirelessly charging (initial temperature 35°C) with both charging and cooling functions enabled, the phone temperature can be reduced to about 30°C after 15 minutes, while the power bank's own temperature is maintained at about 32°C. The charging power remains stable at over 10W, and there is no phenomenon of charging power reduction or device shutdown due to heat generation.

[0028] When the cooling function is turned on alone, it can cool down a phone that has been overheating (40℃) due to prolonged gaming. After 10 minutes, the phone temperature can drop to about 33℃, showing a significant cooling effect.

[0029] Switch button 3 is a touch-sensitive button, electrically connected to the control module. Different button operations control the wireless charging module and the cooling module to operate individually or simultaneously. For example:

[0030] A short press activates wireless charging only.

[0031] Double press: Enables cooling function only.

[0032] Long press: Simultaneously activate wireless charging and cooling functions.

[0033] When the wireless output surface of the power bank (i.e. the side with the cooling aluminum sheet 4 and the magnetic component) is brought close to the wireless charging surface of the phone to be charged, the two will automatically and accurately attract each other under the action of the positioning magnet 9.

[0034] Press and hold the power button on the outer casing to activate the control module. The control module then drives the wireless output coil 8 to generate an alternating magnetic field. The wireless charging receiver coil of the phone being charged senses the change in the magnetic field, thereby generating a current and achieving wireless charging.

[0035] The control module powers on the cooling chip, and the cooling surface of the cooling chip begins to cool down. The cooling energy is transferred to the back of the phone and the wireless output surface of the power bank through the heat-conducting aluminum sheet, cooling the phone and the power bank. At the same time, the cooling fan starts to dissipate heat from the heat dissipation aluminum plate 4, expelling the heat generated by the heating surface of the cooling chip from the casing.

[0036] Temperature control: The control module can automatically adjust the working power of the cooling chip and the speed of the cooling fan according to the preset temperature threshold or the real-time temperature data to maintain the best cooling effect and energy consumption balance.

[0037] The front cover 1 and bottom cover 2 are made of insulating material, and the internal PCBA10 integrates the wireless charging control circuit and the cooling chip control circuit. The battery cell 5 is a 10000mAh lithium battery that provides power to the entire device.

[0038] The cooling chip uses the TEC1-12706 model, and its heating surface is tightly attached to a 5mm thick heat sink aluminum plate 7. Two 5015 model cooling fans are installed on the heat sink aluminum plate 7, and the fans are controlled to start and stop via the circuit on PCBA10. The cooling surface of the cooling chip is covered with a 0.5mm thick heat-conducting aluminum sheet 4. The size of the heat-conducting aluminum sheet 4 is basically the same as that of the wireless output surface, but a clearance hole is opened at the position corresponding to the wireless output coil 8 to avoid interference with wireless charging.

[0039] The wireless output coil 8 uses a 15W power transmitting coil, which, together with the positioning magnet 9, can achieve precise attachment and wireless charging with mobile phones that support magnetic wireless charging.

[0040] When the power bank itself needs to be charged, connect the Type-C input / output interface of the power bank to an external power source using a Type-C data cable. The control module will automatically switch to charging mode to charge battery cell 5. The charging status can be displayed via an indicator light on the casing. Additionally, this interface can also be used to output the power from battery cell 5 via a wired connection to power other devices.

[0041] Working principle: When in use, bring the wireless output side of the power bank close to the wireless charging side of the phone, and they will automatically attract each other under the action of the positioning magnet 9. Pressing the switch button 3 activates both the wireless charging and cooling functions simultaneously. The phone begins charging, and the cooling chip lowers the temperature of the cooling aluminum sheet 4, thereby cooling both the phone and the power bank. If only charging or cooling is needed, the corresponding switches can be controlled separately.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A cooling magnetic wireless charging power bank, comprising a front shell (1) and a bottom shell (2), characterized in that: A switch button (3) is installed on the top of the face shell (1), a cooling aluminum sheet (4) is fixedly connected to the bottom of the bottom shell (2), a battery cell (5) is installed inside the face shell (1), a heat dissipation aluminum plate (7) is fixedly connected to the bottom of the battery cell (5), a wireless output coil (8) is fixedly connected to the bottom of the heat dissipation aluminum plate (7), a cooling mechanism is installed inside the heat dissipation aluminum plate (7), the cooling mechanism includes a first cooling chip (14), a second cooling chip (15), a first cooling fan (12) and a second cooling fan (13), the first cooling fan (12) and the second cooling fan (13) are both installed inside the heat dissipation aluminum plate (7), and the first cooling chip (14) and the second cooling chip (15) are both fixedly connected to the bottom of the heat dissipation aluminum plate (7).

2. The cooling magnetic wireless charging power bank according to claim 1, characterized in that: PCBA (10) and interface (11) are fixedly connected to the left side of the heat dissipation aluminum plate (7).

3. The cooling magnetic wireless charging power bank according to claim 1, characterized in that: The wireless output coil (8) includes at least one positioning magnet (9), and the bottom of the inner wall of the bottom shell (2) is provided with positioning holes, and the number of positioning magnets (9) is the same as the number of positioning holes.

4. A cooling magnetic wireless charging power bank according to claim 2, characterized in that: The interface (11) is a Type-C input / output interface, which is used to connect to an external power source to charge the battery cell (5) and to output the electrical energy of the battery cell (5).

5. A cooling magnetic wireless charging power bank according to claim 1, characterized in that: The heating surface of the cooling chip is attached to the heat dissipation aluminum plate (7), the cooling fan is used to dissipate heat from the heat dissipation aluminum plate (7), and the cooling surface of the cooling chip faces the side where the wireless output coil (8) is located.

6. A cooling magnetic wireless charging power bank according to claim 1, characterized in that: A heat insulation sheet (6) is fixedly connected between the cooling chip and the bottom shell (2).

7. A cooling magnetic wireless charging power bank according to claim 1, characterized in that: The cooling aluminum sheet (4) is attached to the cooling surface of the cooling chip, and the cooling aluminum sheet (4) has a clearance area for avoiding the wireless output coil (8).

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