A wireless charging assembly and a mobile terminal wireless charging device

Abstract

The utility model provides a wireless charging assembly and mobile terminal wireless charging equipment, wireless charging assembly includes circuit board unit, coil unit and insulation unit, and insulation unit includes insulating glue and insulating mela, insulating glue is connected with circuit board unit, insulating mela is connected with coil unit, circuit board unit includes flexible circuit board, and flexible circuit board includes feed point, grounding point, first solder pad and second solder pad, feed point and grounding point are connected with board end elastic foot, circuit board unit still includes first steel sheet and second steel sheet, first steel sheet is located the bottom of feed point, second steel sheet is located the bottom of solder pad, and first steel sheet and second steel sheet are fixed between insulating fixed with flexible circuit board, the utility model discloses a wireless charging assembly not only can realize the charging of not needing to plug in and out, and small -size structure, and the space is few, and still can realize the function of quick charging.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to a wireless charging component and a wireless charging device for mobile terminals. Background Technology

[0002] With the continuous development of 5G base station construction, the frequency bands supported by communication terminals are also constantly expanding. Today, mobile phones are commonly used mobile terminal products. With the continuous development of technology, mobile phones inevitably use 5G communication technology, which requires increasing the number of antennas in the phone. However, the space in a mobile phone is limited, and the bandwidth of the antenna is also limited by space, resulting in a limited frequency band coverage and making it difficult to achieve wide bandwidth radiation. The widespread use of mobile terminals has greatly facilitated our daily lives, but charging is more difficult, requiring wired charging. However, wired charging often encounters the problem of lost charging cables, leading to charging inconvenience and low charging efficiency.

[0003] In recent years, with the rise of wireless charging technology, wireless charging electronic products have gained widespread popularity. However, the current wireless charging structure is relatively complex and takes up a large area, and the charging efficiency is relatively slow.

[0004] In view of this, it is indeed necessary to propose a wireless charging component and a mobile terminal wireless charging device using the wireless charging component to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a wireless charging component that not only enables charging without plugging or unplugging, but also features a miniaturized structure, occupies little space, and provides fast charging functionality.

[0006] To solve the above-mentioned technical problems, this utility model provides a wireless charging component, which includes a circuit board unit, a coil unit, and an insulation unit. The insulation unit includes insulating adhesive and insulating Mylar. The insulating adhesive is connected to the circuit board unit, and the insulating Mylar is connected to the coil unit. The circuit board unit includes a flexible circuit board, which includes a power supply point, a ground point, a first pad, and a second pad. The power supply point and the ground point are connected to the spring-loaded pins at the board end. The circuit board unit also includes a first steel sheet and a second steel sheet. The first steel sheet is located at the bottom of the power supply point, and the second steel sheet is located at the bottom of the pad. The first steel sheet and the second steel sheet are bonded and fixed to the flexible circuit board.

[0007] As a further improvement of this utility model, the coil unit includes a wound copper coil, and the first pad and the second pad are soldered to the incoming and outgoing wires on the wound copper coil.

[0008] As a further improvement of this utility model, the flexible circuit board further includes a copper circuit layer, the copper circuit layer having windows that expose the power supply point and the grounding point, as well as the first pad and the second pad.

[0009] As a further improvement of this utility model, the power supply point and the grounding point are provided with a plating layer, the plating layer being nickel or gold, the thickness of the nickel being in the range of 2~7μm, and the thickness of the gold being greater than 0.10μm.

[0010] As a further improvement of this utility model, the circuit board also includes a first double-sided adhesive and a second double-sided adhesive, and the first double-sided adhesive and the second double-sided adhesive are respectively attached to the bottom of the first steel sheet and the bottom of the second steel sheet for assembly and fixing.

[0011] As a further improvement of this utility model, the first double-sided adhesive and the second double-sided adhesive have the same thickness, both ranging from 0.05mm to 0.15mm.

[0012] As a further improvement of this utility model, the coil unit further includes a magnetic core rod and the wound copper coil. The magnetic core rod is configured as manganese zinc oxide, and the wound copper coil is wound around the center of the magnetic core rod by a winding mold.

[0013] As a further improvement of this utility model, the wound copper coil is configured as a double-strand winding, and the wire diameter of the wound copper coil is in the range of 0.14mm±0.01mm.

[0014] As a further improvement of this utility model, the surface of the wound copper coil is provided with a layer of insulating Mylar to protect the coil.

[0015] The purpose of this invention is to provide a wireless charging device for mobile terminals, so as to better utilize the aforementioned wireless charging components.

[0016] To solve the above-mentioned technical problems, this utility model provides a mobile terminal wireless charging device, which includes the aforementioned wireless charging components.

[0017] This invention provides a wireless charging component and a wireless charging device for a mobile terminal. The wireless charging component includes a circuit board unit, a coil unit, and an insulating unit. The insulating unit includes insulating adhesive and insulating Mylar. The insulating adhesive is connected to the circuit board unit, and the insulating Mylar is connected to the coil unit. The circuit board unit includes a flexible circuit board with a power supply point, a ground point, a first pad, and a second pad. The power supply point and the ground point are connected to spring-loaded feet on the board end. The circuit board unit also includes a first steel sheet and a second steel sheet. The first steel sheet is located at the bottom of the power supply point, and the second steel sheet is located at the bottom of the pad. The first steel sheet and the second steel sheet are bonded and fixed to the flexible circuit board. This invention's wireless charging component not only enables charging without plugging and unplugging, but also features a miniaturized structure, occupies little space, and provides fast charging functionality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the wireless charging component of this utility model.

[0019] Figure 2 This is a first exploded view of the wireless charging component of this utility model.

[0020] Figure 3 This is a second exploded view of the wireless charging component of this utility model. Detailed Implementation

[0021] The wireless charging component proposed in this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the explanation of the embodiments of this utility model. Furthermore, the structures shown in the drawings are often part of the actual structure. In particular, different figures may emphasize different aspects and sometimes use different proportions.

[0022] In recent years, with the rise of wireless charging technology, wireless charging electronic products have gained widespread popularity. However, the current wireless charging structure is relatively complex and takes up a large area, and the charging efficiency is relatively slow.

[0023] This invention provides a wireless charging component that is used in wireless charging devices for mobile terminals, such as mobile phones and laptops.

[0024] The wireless charging assembly includes a circuit board unit, a coil unit, and an insulation unit. The insulation unit includes insulating adhesive 4 and insulating Mylar 3. The insulating adhesive 4 is connected to the circuit board unit, and the insulating Mylar 3 is connected to the coil unit. The circuit board unit includes a flexible circuit board 1, which includes a power supply point 120, a ground point 130, a first pad 5, and a second pad 6. The power supply point 120 and the ground point 130 are connected to the board end spring pins. The circuit board unit also includes a first steel sheet 150 and a second steel sheet 180. The first steel sheet 150 is located at the bottom of the power supply point 120, and the second steel sheet 180 is located at the bottom of the pad. The first steel sheet 150 and the second steel sheet 180 are bonded and fixed to the flexible circuit board 1.

[0025] Further, the coil unit includes a wound copper coil 220, and the first pad 5 and the second pad 6 are soldered to the input and output lines 230 on the wound copper coil. Further, the flexible circuit board 1 also includes a copper circuit layer, with windows exposing the feed point 120, the ground point 130, and the first pad 5 and the second pad 6. Preferably, the feed point 120 and the ground point 130 are plated with a nickel or gold plating, wherein the nickel plating has a thickness ranging from 2 to 7 μm, and the gold plating has a thickness greater than 0.10 μm.

[0026] Further, the circuit board also includes a first double-sided adhesive 160 and a second double-sided adhesive 170. The bottom of the first steel sheet 150 and the bottom of the second steel sheet 180 are respectively covered with the first double-sided adhesive 160 and the second double-sided adhesive 170 for assembly and fixation. Preferably, the first double-sided adhesive 160 and the second double-sided adhesive 170 have the same thickness, both ranging from 0.05mm to 0.15mm. Further, the coil unit also includes a magnetic core rod 2 and a wound copper coil 220. The magnetic core rod 2 is configured as manganese-zinc oxide, and the wound copper coil 220 is wound around the center of the magnetic core rod 2 using a winding mold. Preferably, the wound copper coil 220 is configured as a double-strand winding, and the wire diameter of the wound copper coil 220 ranges from 0.14mm ± 0.01mm. Further, the surface of the wound copper coil 220 is provided with an insulating Mylar 3 layer to protect the coil. Under the control of the motherboard, the wireless charging component of this invention generates current at a frequency through the magnetic core rod 2 and the corresponding receiving coil through electromagnetic induction, thereby transferring energy from the transmitting end to the receiving end and completing the charging function.

[0027] In summary, this utility model provides a wireless charging component and a mobile terminal. The wireless charging component includes a circuit board unit, a coil unit, and an insulation unit. The insulation unit includes insulating adhesive 4 and insulating Mylar 3. The insulating adhesive 4 is connected to the circuit board unit, and the insulating Mylar 3 is connected to the coil unit. The circuit board unit includes a flexible circuit board 1, which includes a power supply point 120, a ground point 130, a first pad 5, and a second pad 6. The power supply point 120 and the ground point 130 are connected to the board end spring pins. The circuit board unit also includes a first steel sheet 150 and a second steel sheet 180. The first steel sheet 150 is located at the bottom of the power supply point 120, and the second steel sheet 180 is located at the bottom of the pad. The first steel sheet 150 and the second steel sheet 180 are bonded and fixed to the flexible circuit board 1. The wireless charging component of this utility model not only enables charging without plugging and unplugging, but also has a miniaturized structure, occupies little space, and can achieve fast charging.

[0028] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. In addition, the different parts between embodiments can also be combined with each other, and this utility model does not limit this.

[0029] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A wireless charging component, characterized in that: The wireless charging component includes a circuit board unit, a coil unit, and an insulation unit. The insulation unit includes insulating adhesive and insulating Mylar. The insulating adhesive is connected to the circuit board unit, and the insulating Mylar is connected to the coil unit. The circuit board unit includes a flexible circuit board, which includes a power supply point, a ground point, a first pad, and a second pad. The power supply point and the ground point are connected to the spring-loaded pins at the board end. The circuit board unit also includes a first steel sheet and a second steel sheet. The first steel sheet is located at the bottom of the power supply point, and the second steel sheet is located at the bottom of the pad. The first steel sheet and the second steel sheet are bonded and fixed to the flexible circuit board.

2. The wireless charging component according to claim 1, characterized in that: The coil unit includes a wound copper coil, and the first pad and the second pad are soldered to the incoming and outgoing wires on the wound copper coil.

3. The wireless charging component according to claim 2, characterized in that: The flexible circuit board also includes a copper layer with windows that expose the power supply point and the grounding point, as well as the first pad and the second pad.

4. The wireless charging component according to claim 3, characterized in that: The power supply point and the grounding point are provided with a plating layer, which is nickel or gold. The thickness of the nickel plating layer is in the range of 2 to 7 μm, and the thickness of the gold plating layer is greater than 0.10 μm.

5. The wireless charging component according to claim 4, characterized in that: The circuit board also includes a first double-sided adhesive and a second double-sided adhesive. The first double-sided adhesive and the second double-sided adhesive are respectively attached to the bottom of the first steel sheet and the bottom of the second steel sheet for assembly and fixing.

6. The wireless charging component according to claim 5, characterized in that: The first double-sided adhesive and the second double-sided adhesive have the same thickness, both ranging from 0.05mm to 0.15mm.

7. The wireless charging component according to claim 6, characterized in that: The coil unit also includes a magnetic core rod and the wound copper coil. The magnetic core rod is configured as manganese zinc oxide, and the wound copper coil is wound around the center of the magnetic core rod by a winding mold.

8. The wireless charging component according to claim 7, characterized in that: The wound copper coil is configured as a double-strand winding, and the wire diameter of the wound copper coil ranges from 0.14 mm ± 0.01 mm.

9. The wireless charging component according to claim 8, characterized in that: The surface of the wound copper coil is provided with an insulating layer of Mylar to protect the coil.

10. A wireless charging device for a mobile terminal, characterized in that: The mobile terminal wireless charging device includes the wireless charging component according to any one of claims 1-9.

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