A wireless charger

Abstract

The utility model discloses a wireless charger, include: main casing is provided with the charging part, is provided with the assembly cavity in the inside, and the side is provided with air inlet and air outlet respectively, the blocking body is set up in the assembly cavity, and the assembly cavity is divided into the air inlet cavity and the air outlet cavity, and the air inlet cavity and the air outlet cavity are provided with the ventilation opening, the fan is set up in the ventilation opening, and the air inlet end is to the air inlet cavity, and the air outlet end is to the air outlet cavity, the wireless charging coil is set up in the air inlet cavity and corresponds the inside of charging part, the electric control unit is set up in the air outlet cavity, and is electrically connected with fan and wireless charging coil, the utility model discloses through the blocking body and sets up wireless charging coil and electric control unit respectively in the air inlet cavity and the air outlet cavity, utilizes the fan and introduces the air from the air inlet into the air inlet cavity, and guides to the air outlet cavity from the air outlet, forms the effective heat dissipation path, effectively reduces each heating element temperature, ensures the charging efficiency and equipment safety, promotes the user experience.

Description

Technical Field

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

[0002] While wireless charging technology offers a convenient way to transfer power, its electromagnetic induction principle has inherent flaws in the energy transfer process: resistance in the transmitting coil, core losses, and electromagnetic radiation efficiency losses. Combined with heat generated by internal components in the receiving device, this leads to multiple heat sources accumulating during wireless charging. Traditional heat dissipation solutions often focus on a single heat source, making it difficult to address multiple heat sources simultaneously. This results in significant temperature rise, manifesting as reduced charging efficiency, a degraded user experience, and potential safety hazards.

[0003] Therefore, there is an urgent need for a wireless charger that can effectively address the problem of multiple heat sources and improve charging efficiency and device safety. Utility Model Content

[0004] This utility model provides a wireless charger designed to overcome the problems existing in the prior art.

[0005] This utility model provides a wireless charger, comprising:

[0006] The main housing has a charging unit, an assembly cavity inside, and an air inlet and an air outlet on its sides.

[0007] A baffle is disposed within the assembly cavity, dividing the assembly cavity into an air inlet cavity that connects to the air inlet and an air outlet cavity that connects to the air outlet; wherein a ventilation opening is provided between the air inlet cavity and the air outlet cavity;

[0008] A fan is installed at the ventilation opening, with the air inlet facing the air inlet cavity and the air outlet facing the air outlet cavity;

[0009] A wireless charging coil is disposed inside the air inlet cavity and correspondingly disposed inside the charging section;

[0010] An electronic control unit is located inside the air outlet cavity and is electrically connected to the fan and the wireless charging coil.

[0011] In one embodiment, a first ventilation gap is provided between the wireless charging coil and the charging unit, and the first ventilation gap is connected to the air inlet.

[0012] In one embodiment, the wireless charger further includes a middle shell disposed within the air inlet cavity for mounting the wireless charging coil.

[0013] In one embodiment, the main housing includes a bottom shell and a top shell, which are fastened together to form the assembly cavity;

[0014] The blocking body is provided in at least one of the bottom shell, middle shell and top shell.

[0015] In one embodiment, both the air inlet and the air outlet are located on the side of the bottom shell;

[0016] The air inlet is located on the side corresponding to the air inlet cavity, and the air outlet is located on the side corresponding to the air outlet cavity.

[0017] In one embodiment, the middle shell is provided with a mounting part and a ventilation slot;

[0018] The mounting portion protrudes upward on the surface of the middle shell and is used to receive the wireless charging coil.

[0019] The ventilation slot is configured to connect from the side of the middle shell near the air inlet to the side near the air outlet, and the ventilation slot is provided through the mounting part for air to flow from the air inlet to the air outlet.

[0020] In one embodiment, the wireless charger further includes a magnet assembly mounted on the mounting portion and surrounding the outside of the wireless charging coil.

[0021] In one embodiment, a second ventilation gap is provided between the magnet assembly and the wireless charging coil.

[0022] In one embodiment, the wireless charger further includes a battery cell disposed below the wireless charging coil and electrically connected to the wireless charging coil, the fan, and the electronic control unit.

[0023] In one embodiment, the middle shell is located between the wireless charging coil and the battery cell, serving to separate the wireless charging coil from the battery cell.

[0024] In one embodiment, a ventilation notch is provided on the side of the middle shell near the air outlet cavity, the ventilation notch is located above the battery cell, and a third ventilation gap is provided on the side of the middle shell facing the battery cell.

[0025] In one embodiment, a gasket is provided between the battery cell and the middle shell, and the middle part of the gasket is hollowed out to form the third ventilation gap.

[0026] This utility model embodiment provides an assembly cavity within the main housing, which is then divided into an air inlet cavity and an air outlet cavity by a barrier. The wireless charging coil and the electronic control unit are respectively housed within the air inlet cavity and the air outlet cavity. Airflow generated by a fan draws air into the air inlet cavity and guides it to the air outlet cavity, where it is then discharged through the air outlet, forming an effective heat dissipation path. This process sequentially removes the heat generated by the charging unit, the wireless charging coil, and the electronic control unit, thereby effectively reducing the temperature of the heat-generating components in the wireless charger. This ensures charging efficiency and device safety, prevents overheating of electronic devices, and improves the user experience. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the structure of a wireless charger provided in an embodiment of this utility model;

[0029] Figure 2 An exploded view of a wireless charger provided for an embodiment of this utility model;

[0030] Figure 3 An assembly diagram of the bottom shell of a wireless charger provided for an embodiment of this utility model;

[0031] Figure 4 An assembly diagram of the middle shell in a wireless charger provided for an embodiment of this utility model;

[0032] Figure 5 A schematic diagram of the assembly of a pad in a wireless charger provided for an embodiment of this utility model;

[0033] Figure 6 A schematic diagram of the structure of a fan in a wireless charger provided in this embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the bottom shell of a wireless charger provided in an embodiment of the present utility model.

[0035] The diagram shows the following components: 10. Main housing; 11. Charging unit; 12. Assembly cavity; 13. Air inlet; 14. Air outlet; 15. Ventilation opening; 16. Bottom housing; 17. Top housing; 20. Block; 30. Fan; 40. Wireless charging coil; 50. Electronic control unit; 60. Middle housing; 61. Mounting part; 62. Ventilation slot; 63. Ventilation notch; 70. Magnet assembly; 80. Battery cell; 90. Gasket. Detailed Implementation

[0036] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0038] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0039] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0040] Please see below. Figures 1 to 7 The present invention provides a wireless charger, which specifically includes:

[0041] The main housing 10 has a charging unit 11, an assembly cavity 12 inside, and an air inlet 13 and an air outlet 14 on its sides.

[0042] A baffle 20 is disposed within the assembly cavity 12, dividing the assembly cavity 12 into an air inlet cavity that connects to the air inlet 13 and an air outlet cavity that connects to the air outlet 14; wherein, a ventilation opening 15 is provided between the air inlet cavity and the air outlet cavity.

[0043] Fan 30 is located at vent 15, with the air inlet of fan 30 facing the air inlet cavity and the air outlet facing the air outlet cavity;

[0044] The wireless charging coil 40 is disposed inside the air inlet cavity and correspondingly disposed inside the charging part 11;

[0045] The electronic control unit 50 is located inside the air outlet cavity and is electrically connected to the fan 30 and the wireless charging coil 40.

[0046] In this embodiment, an assembly cavity 12 is provided inside the main housing 10, and the assembly cavity 12 is divided into an air inlet cavity and an air outlet cavity by a barrier 20. The wireless charging coil 40 and the electronic control unit 50 are respectively disposed in the air inlet cavity and the air outlet cavity. The airflow generated by the fan 30 is used to introduce air into the air inlet cavity from the air inlet 13 and guide it to the air outlet cavity to be discharged from the air outlet 14, forming an effective heat dissipation path. The heat generated by the charging unit 11, the wireless charging coil 40 and the electronic control unit 50 is carried away in sequence through heat exchange, thereby effectively reducing the temperature of each heat-generating component in the wireless charger, ensuring charging efficiency and device safety, avoiding excessive temperature of electronic devices and improving user experience.

[0047] In specific application scenarios, in addition to controlling the normal charging start and stop of the wireless charger, the electronic control unit 50 can also monitor the temperature of each component in real time through the temperature control component and adjust the speed of the fan 30 according to the preset threshold to achieve dynamic heat dissipation.

[0048] In one embodiment, the wireless charger further includes a middle shell 60 disposed within the air inlet cavity for mounting the wireless charging coil 40. This embodiment utilizes a middle shell 60 within the air inlet cavity for mounting the wireless charging coil 40.

[0049] In one embodiment, the main housing 10 includes a bottom housing 16 and a top housing 17, which are fastened together to form an assembly cavity 12;

[0050] At least one of the bottom shell 16, the middle shell 60 and the top shell 17 is provided with a blocking body 20.

[0051] In this embodiment, the bottom shell 16 and the top shell 17 are fastened together to form an assembly cavity 12 for installing various components. The fixing method between the bottom shell 16 and the top shell 17 can be selected from snap-fit, screw fixing or other methods according to actual needs.

[0052] Meanwhile, the baffle 20 used to separate the assembly cavity 12 in this embodiment can be flexibly designed according to actual conditions, and can be selected to be set in the bottom shell 16, the middle shell 60, or the top shell 17 to optimize the internal space layout. For example, the baffle 20 can be set on the bottom shell 16 and extend towards the top shell 17 to form a structure that separates the air inlet cavity and the air outlet cavity. When the baffle 20 is set on the middle shell 60, since the middle shell 60 is set in the air inlet cavity, it needs to be set on the side of the middle shell 60 closer to the air outlet cavity to ensure effective separation of the air inlet cavity and the air outlet cavity, while not hindering airflow.

[0053] In one embodiment, both the air inlet 13 and the air outlet 14 are located on the side of the bottom shell 16.

[0054] The air inlet 13 is located on the side of the air inlet cavity, and the air outlet 14 is located on the side of the air outlet cavity.

[0055] In this embodiment, by setting the air inlet 13 and air outlet 14 on the sides of the bottom shell 16 corresponding to the air inlet and air outlet chambers, respectively, it facilitates the smooth inflow and outflow of air, reduces airflow resistance, ensures a longer and more direct airflow path, and further improves heat dissipation efficiency. At the same time, this embodiment eliminates the need for holes in the top shell 17, thus enhancing the product's aesthetics.

[0056] In a specific embodiment, the air inlet 13 can be selected to be set on 1 to 3 sides of the air inlet cavity according to actual needs, while the air outlet 14 is set on a different side from the air inlet 13. This not only ensures that air enters from multiple directions and increases the air intake, but also prevents the hot air flowing out of the air outlet 14 from being sucked back into the air inlet 13 by setting the air outlet 14 on a different side, thereby improving the heat dissipation effect.

[0057] Furthermore, the specific location and number of air inlets 13 and air outlets 14 on a particular side can be flexibly adjusted according to actual needs to ensure optimal airflow and heat dissipation. Taking air inlet 13 as an example... Figure 7 As shown, multiple air inlets 13 can be provided on one side. The air inlets 13 on this side can be provided either at the top of the side near the wireless charging coil 40 or at the top of both sides of the wireless charging coil 40.

[0058] In one embodiment, the middle shell 60 is provided with a mounting part 61 and a ventilation slot 62;

[0059] The mounting part 61 protrudes upward on the surface of the middle shell 60 and is used to receive the wireless charging coil 40.

[0060] The ventilation slot 62 is configured to connect from the side of the middle shell 60 near the air inlet 13 to the side near the air outlet cavity, and the ventilation slot 62 is provided through the mounting part 61 for air to flow from the air inlet 13 to the air outlet cavity.

[0061] In this embodiment, a mounting portion 61 is provided on the middle shell 60 to receive the wireless charging coil 40, and a ventilation slot 62 is provided through the mounting portion 61 to ensure that air can flow smoothly from the air inlet 13 through the wireless charging coil 40 and finally be discharged to the air outlet cavity for effective heat dissipation.

[0062] In a specific embodiment, the mounting part 61 may also be designed with multiple through slots to connect the inner and outer sides of the mounting part 61 and the ventilation slot 62, so as to enhance the air circulation effect and further optimize the heat dissipation performance.

[0063] In one embodiment, a first ventilation gap is provided between the wireless charging coil 40 and the charging unit 11, and the first ventilation gap is connected to the air inlet 13.

[0064] In this embodiment, a first ventilation gap is provided between the wireless charging coil 40 and the charging part 11 (i.e., the corresponding position on the top shell 17), and the first ventilation gap is connected to the air inlet 13 to ensure air circulation, increase the contact area between the wireless charging coil 40 and the air, and improve heat dissipation efficiency. At the same time, since the charging part 11 is located on the top shell 17, and the electronic device will also generate heat when charging on the charging part 11, the design of the first ventilation gap can also allow cold air to enter the air intake cavity through the air inlet 13, and pass through the surface of the wireless charging coil 40 and the inner surface of the top shell 17 (corresponding to the position of the charging part 11) for heat exchange and heat dissipation. The heat from the charging part 11 is carried away from the inner surface of the top shell 17 to dissipate heat to the electronic device, which can effectively reduce the overall temperature of the device and extend its service life.

[0065] In specific application scenarios, the height of the first ventilation gap can be adjusted according to actual needs to ensure effective heat dissipation without affecting wireless charging efficiency. Furthermore, the first ventilation gap can connect to both the air inlet 13 and the ventilation slot 62, thereby further increasing the contact area between the cool air and the wireless charging coil 40 and other components, thus improving heat dissipation.

[0066] In one embodiment, the wireless charger further includes a magnet assembly 70, which is mounted on the mounting portion 61 and surrounds the outside of the wireless charging coil 40.

[0067] In this embodiment, by setting a magnet group 70 around the outside of the wireless charging coil 40 on the mounting part 61, the magnet group 70 is used to realize the magnetic attraction function, ensuring that the electronic device is stably attached to the charging part 11 during the charging process, and avoiding charging instability or interruption caused by device movement.

[0068] In a specific embodiment, notches or through holes are provided on the magnet assembly 70 and the wireless charging coil 40 to ensure that air can flow from the air inlet 13, the ventilation slot 62 and the first ventilation gap, etc.

[0069] In one embodiment, a second ventilation gap is provided between the magnet assembly 70 and the wireless charging coil 40.

[0070] In this embodiment, by setting a second ventilation gap, air can flow smoothly from the air inlet 13 between the magnet assembly 70 and the wireless charging coil 40, and then flow to the first ventilation gap, thereby effectively improving the overall heat dissipation effect, ensuring the stability of the magnetic attraction function, and avoiding heat accumulation.

[0071] In one embodiment, the wireless charger further includes a battery cell 80, which is disposed below the wireless charging coil 40 and electrically connected to the wireless charging coil 40, the fan 30, and the electronic control unit 50.

[0072] In this embodiment, by placing a battery cell 80 inside the air intake cavity and electrically connecting it to the wireless charging coil 40, the fan 30 and the electronic control unit 50, the battery cell 80 can be used to provide charging function, thereby realizing the function of a wireless power bank.

[0073] In one embodiment, the middle shell 60 is located between the wireless charging coil 40 and the battery cell 80, and is used to separate the wireless charging coil 40 from the battery cell 80.

[0074] In this embodiment, by placing the wireless charging coil 40 and the battery cell 80 on both sides of the middle shell 60 respectively, the two are effectively isolated, thereby preventing the heat generated by the wireless power supply coil during operation from affecting the safety and stability of the battery cell 80.

[0075] In one embodiment, a ventilation notch 63 is provided on the side of the middle shell 60 near the air outlet cavity, the ventilation notch 63 is provided above the battery cell 80, and a third ventilation gap is provided on the side of the middle shell 60 facing the battery cell 80.

[0076] In this embodiment, by providing a ventilation gap 63 on the side of the middle shell 60 near the air outlet cavity and providing a third ventilation gap above the battery cell 80, air can flow smoothly between the battery cell 80 and the middle shell 60, carrying away the heat generated by the battery cell 80, further optimizing the heat dissipation path, ensuring that the battery cell 80 maintains a suitable temperature in a high-efficiency working state, and improving the overall charging safety.

[0077] In specific application scenarios, the third ventilation gap also connects to the ventilation slot 62 and the ventilation notch 63, forming a complete heat dissipation channel to ensure that heat from multiple heat sources can be effectively dissipated. Furthermore, the ventilation notch 63 can be located not only on the side of the middle shell 60 near the air outlet cavity, but also in other positions on the middle shell 60 according to actual needs, to adapt to heat dissipation requirements under different conditions. For example, it can be located on the side of the middle shell 60 near the air inlet 13, or on both sides of the middle shell 60.

[0078] In one embodiment, a gasket 90 is provided between the battery cell 80 and the middle shell 60, and the middle part of the gasket 90 is hollowed out to form a third ventilation gap.

[0079] In this embodiment, a gasket 90 with a third ventilation gap is provided between the battery cell 80 and the middle shell 60, thereby forming a heat dissipation channel for the battery cell 80 using the third ventilation gap, so as to effectively dissipate heat from the battery cell 80 and ensure that its temperature is stable during continuous operation.

[0080] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0081] It should also be noted that, in this specification, 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 wireless charger, characterized in that, include: The main housing (10) is provided with a charging part (11), an assembly cavity (12) is provided inside, and an air inlet (13) and an air outlet (14) are provided on the side respectively. A blocking body (20) is disposed in the assembly cavity (12) and divides the assembly cavity (12) into an air inlet cavity that connects to the air inlet (13) and an air outlet cavity that connects to the air outlet (14); wherein, a ventilation opening (15) is provided between the air inlet cavity and the air outlet cavity; A fan (30) is provided at the ventilation opening (15), with the air inlet of the fan (30) facing the air inlet cavity and the air outlet facing the air outlet cavity; A wireless charging coil (40) is disposed in the air inlet cavity and correspondingly disposed inside the charging part (11); An electronic control unit (50) is disposed in the air outlet cavity and is electrically connected to the fan (30) and the wireless charging coil (40).

2. The wireless charger according to claim 1, characterized in that, A first ventilation gap is provided between the wireless charging coil (40) and the charging part (11), and the first ventilation gap is connected to the air inlet (13).

3. The wireless charger according to claim 1, characterized in that, It also includes a middle shell (60), which is disposed in the air inlet cavity and is used to install the wireless charging coil (40).

4. The wireless charger according to claim 3, characterized in that, The main housing (10) includes a bottom shell (16) and a top shell (17), which are fastened together to form the assembly cavity (12); At least one of the bottom shell (16), middle shell (60) and top shell (17) is provided with the blocking body (20).

5. The wireless charger according to claim 4, characterized in that, The air inlet (13) and air outlet (14) are both located on the side of the bottom shell (16); The air inlet (13) is located on the side of the air inlet cavity, and the air outlet (14) is located on the side of the air outlet cavity.

6. The wireless charger according to claim 4, characterized in that, The middle shell (60) is provided with a mounting part (61) and a ventilation slot (62); The mounting part (61) protrudes upward on the surface of the middle shell (60) and is used to receive the wireless charging coil (40); The ventilation slot (62) is configured to connect from the side of the middle shell (60) near the air inlet (13) to the side near the air outlet cavity, and the ventilation slot (62) is provided through the mounting part (61) for air to flow from the air inlet (13) to the air outlet cavity.

7. The wireless charger according to claim 6, characterized in that, It also includes a magnet assembly (70), which is mounted on the mounting portion (61) and surrounds the outside of the wireless charging coil (40).

8. The wireless charger according to claim 7, characterized in that, A second ventilation gap is provided between the magnet assembly (70) and the wireless charging coil (40).

9. The wireless charger according to claim 2, characterized in that, It also includes a battery cell (80), which is disposed below the wireless charging coil (40) and electrically connected to the wireless charging coil (40), the fan (30) and the electronic control unit (50).

10. The wireless charger according to claim 9, characterized in that, The middle shell (60) is located between the wireless charging coil (40) and the battery cell (80) and is used to separate the wireless charging coil (40) from the battery cell (80).

11. The wireless charger according to claim 9, characterized in that, The middle shell (60) has a ventilation notch (63) on the side near the air outlet cavity. The ventilation notch (63) is located above the battery cell (80). The middle shell (60) has a third ventilation gap on the side facing the battery cell (80).

12. The wireless charger according to claim 11, characterized in that, A gasket (90) is provided between the battery cell (80) and the middle shell (60), and the middle part of the gasket (90) is hollowed out to form the third ventilation gap.

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