CN103378613B - Wireless charging device - Google Patents

Abstract

The present invention discloses a wireless charging device, comprising a shell, a carrying device and a first coil group. The shell comprises a containing space, an opening side and a supporting portion, and the carrying device comprises a carrying sheet, a first elastic element and a second elastic element. The supporting portion is located in the containing space, the carrying device is arranged above the supporting portion, and the first coil group is arranged above the carrying sheet. When the opening side of the shell is fixed to the first surface of an object, the supporting portion abuts against the first elastic element and the second elastic element, so that the first elastic element and the second elastic element are pushed against by the first surface of the object and deformed, so as to form a balanced supporting force for maintaining the distance between the first coil group and the first surface of the object.

Description

wireless charging device

technical field

The invention relates to a wireless charging device, in particular to a wireless charging device for electronic products.

Background technique

When the power supply of electronic products such as mobile phones and notebook computers is exhausted and needs to be recharged, users can connect the electronic products to sockets through transmission lines and plugs, or connect electronic products to computers through transmission lines to obtain electric energy. However, the above-mentioned existing electronic products can only be charged by wired means such as transmission lines and plugs, which is inconvenient to use and carry.

Therefore, there is a so-called wireless charging device. When the electronic product is placed on the surface of the wireless charging device, the electric power stored in the wireless charging device can wirelessly charge the electronic product. However, the coil group inside the wireless charging device and the coil group of the electronic product must be aligned with each other, and the distance must be kept constant. Too far or too close will affect the performance of charging, and even cause the situation that charging cannot occur. If the user wants to move When charging electronic products in places prone to vibration, such as inside vehicles and on the surface of furniture, how to avoid displacement or damage of the wireless charging device due to excessive vibration has become an important issue.

The structure of the existing wireless charging device will be described below, please refer to Figure 1 and Figure 2 first, Figure 1 is a perspective view of an existing wireless charging device, Figure 2 is an internal schematic diagram of an existing wireless charging device .

The wireless charging device 1 includes a casing 11 , a power circuit 12 , a bracket 13 , four rollers 14 and a first coil set 15 . The casing 11 includes an upper cover 11a and a base 11b, and the upper cover 11a includes a platform 11aa.

The bracket 13 is disposed inside the base 11 b , the four rollers 14 are respectively disposed at four corners of the bracket 13 , and the first coil group 15 is disposed on the bracket 13 .

Next, the operation flow of the conventional wireless charging device will be described. When the user places the electronic product with the second coil group on the platform 11aa, the first coil group 15 is attracted by the second coil group and aligns with it. When the electronic product moves, the first coil group 15 can pass through the four rollers 14 moves together with the second coil group.

When the wireless charging device 1 is connected to a power source, the power circuit 12 transmits electric energy to the first coil group 15, and the first coil group 15 generates a magnetic field after being energized, and the second coil group is affected by the first coil group 15 to generate a current, that is, Charge electronic products.

The main problem of the aforementioned wireless charging device 1 is that when the wireless charging device 1 is applied to an object prone to vibration, such as the interior of a car, the wireless charging device 1 does not have any structure to maintain the relationship between the first coil set 15 and the platform 11aa. distance, and cannot absorb the vibration energy from the car body, the first coil assembly 15 will vibrate up and down inside the wireless charging device 1 during the running of the car and affect the charging performance, and may be damaged due to excessive vibration.

Therefore, there is a need for an improved wireless charging device to overcome the problems of existing wireless charging devices.

Contents of the invention

The purpose of the present invention is to provide a wireless charging device capable of absorbing shock energy and maintaining the position of the first coil set.

The present invention provides a wireless charging device, including:

A housing, including:

a storage space;

a support part located in the accommodating space; and

an open side;

A carrying device is arranged in the accommodating space and above the supporting part, and the carrying device includes:

a carrier sheet;

A first elastic element, located on one side of the carrier sheet, includes:

a first connecting portion extending from the side of the carrier sheet and in contact with the supporting portion;

a first elastic piece, extending from one end of the first connecting portion, and protruding from the end of the accommodating space; and

a second elastic piece extending from the other end of the first connecting portion, and its end protrudes out of the accommodating space; and

A second elastic element, located on the other side of the carrier sheet, includes:

a second connecting portion extending from the other side of the carrier sheet and contacting the supporting portion;

a third elastic piece extending from one end of the second connecting portion, and its end protrudes out of the accommodating space; and

a fourth elastic piece, extending from the other end of the second connecting portion, and its end protrudes out of the accommodating space; and

a first coil group fixed on an upper surface of the carrier sheet;

Wherein, when the opening side of the casing is fixed to a first surface of an object, the supporting portion abuts against the first connection portion of the first elastic element and the second connection portion of the second elastic element , so that the first elastic piece, the second elastic piece, the third elastic piece and the fourth elastic piece are pushed against by the first surface of the object and deformed, so as to form a balanced support force to maintain the first coil group and the the distance of the first surface of the object.

In a preferred embodiment, when an electronic device having a second coil set is placed on a second surface of the object, the second coil set charges the electronic device.

In a preferred embodiment, the wireless charging device further includes a circuit board, and the circuit board is fixed on the lower surface of the carrier sheet.

In a preferred embodiment, the wireless charging device further includes a connector fixed to the circuit board.

In a preferred embodiment, the casing further includes a notch, and the connector is exposed through the notch for connecting to a power source.

In a preferred embodiment, the circuit board transmits the electric energy from the power supply to the first coil set to generate a magnetic field.

In a preferred embodiment, the second coil group is affected by the magnetic field to generate current.

In a preferred embodiment, the supporting portion is two protrusions extending from the inner surface of the accommodating space.

In a preferred embodiment, the object is a mobile vehicle or furniture.

In a preferred embodiment, the carrying sheet is made of metal material.

Description of drawings

Fig. 1 is a perspective view of an existing wireless charging device.

Fig. 2 is an internal schematic diagram of a conventional wireless charging device.

FIG. 3 is an exploded view from a first angle of a wireless charging device according to a preferred embodiment of the present invention.

FIG. 4 is an exploded view from a second angle of a wireless charging device according to a preferred embodiment of the present invention.

FIG. 5 is a perspective view of a wireless charging device according to a preferred embodiment of the present invention.

FIG. 6 is a schematic diagram of a wireless charging device applied to a mobile vehicle according to a preferred embodiment of the present invention.

FIG. 7 is a schematic diagram of a wireless charging device applied to furniture according to a preferred embodiment of the present invention.

Wherein, the reference signs are explained as follows:

The first connection part 22ba of the wireless charging device 1

Shell 11 The first shrapnel 22bb

Upper cover 11a Second shrapnel 22bc

Platform 11aa Second elastic element 22c

Base 11b Second connecting part 22ca

Power circuit 12 The third shrapnel 22cb

Bracket 13 The fourth shrapnel 22cc

Four rollers 14 The first coil group 23

The first coil group 15 circuit board 24

Wireless charging device 2 connector 25

Housing 21 Automobile 26

Accommodating space 21a Storage rack 26a

Open side 21b First surface 26aa

Notch 21c Second surface 26ab

Support part 21d Electronic device 27

Carrier 22 Table 28

Carrier sheet 22a Electronic device 29

first elastic member 22b

Detailed ways

According to a specific embodiment of the present invention, a wireless charging device is provided.

Firstly, the elements included in the wireless charging device according to the embodiment of the present invention will be described. Please refer to FIG. 3 and FIG. 4 first. FIG. 3 is an exploded view of a first angle of a wireless charging device according to a preferred embodiment of the present invention, and FIG. 4 is a second angle of a wireless charging device according to a preferred embodiment of the present invention. exploded view.

The wireless charging device 2 includes a housing 21 , a carrying device 22 , a first coil assembly 23 , a circuit board 24 and a connector 25 . The housing 21 includes an accommodating space 21a, an opening side 21b, a notch 21c and a supporting portion 21d, wherein the supporting portion 21d is located in the accommodating space 21a. The bearing device 22 includes a bearing piece 22a, a first elastic element 22b, and a second elastic element 22c, wherein the first elastic element 22b includes a first connecting portion 22ba, a first elastic piece 22bb, and a second elastic piece 22bc, and the second elastic element 22c includes a second elastic element 22c. The second connecting portion 22ca, the third elastic piece 22cb and the fourth elastic piece 22cc.

Wherein the first connecting portion 22ba of the first elastic element 22b extends from one side of the bearing piece 22a, the first elastic piece 22bb extends from one end of the first connecting portion 22ba, and the second elastic piece 22bc extends from the other end of the first connecting portion 22ba .

The second connecting portion 22ca of the second elastic member 22c extends from the other side of the carrier piece 22a, the third elastic piece 22cb extends from one end of the second connecting portion 22ca, and the fourth elastic piece 22cc extends from the other end of the second connecting portion 22ca .

In addition, in the embodiment of the present invention, the carrying device 22 can be made of metal material, which can not only provide a higher supporting force, but also enhance the magnetic field generated by the first coil set 23 .

Furthermore, in the embodiment of the present invention, the supporting portion 21d may be two protrusions extending from the inner surface of the accommodating space 21a, as shown in FIG. 3 and FIG. 4 .

Next, the assembly sequence of the wireless charging device according to the embodiment of the present invention will be described, please refer to FIG. 3 to FIG. 5 at the same time. FIG. 5 is a perspective view of a wireless charging device according to a preferred embodiment of the present invention.

Firstly, the first coil set 23 is fixed on the upper surface of the carrier sheet 22a, and the circuit board 24 is fixed on the lower surface of the carrier sheet 22a, so that the carrier sheet 22a can prevent the magnetic field generated by the first coil set 23 from affecting the circuit board 24 , and the connector 25 is fixed under the circuit board 24 .

Next, the first coil group 23, the carrying device 22, the circuit board 24 and the connector 25 are placed together in the accommodating space 21a. At this time, the support part 21d abuts against the first connecting part 22ba of the first elastic element 22b and the first connecting part 22ba of the first elastic element 22b. The second connecting portion 22ca of the two elastic elements 22c is used to support the first coil set 23 , the carrying device 22 and the circuit board 24 , and the connector 25 is exposed through the gap 21c.

It should be noted that at this time, the ends of the first elastic piece 22bb, the second elastic piece 22bc, the third elastic piece 22cb and the fourth elastic piece 22cc are protruding and exposed outside the accommodating space 21a, as shown in FIG. 5 .

Next, the operation flow of the wireless charging device according to the embodiment of the present invention will be described. Please refer to FIG. 5 to FIG. 7 at the same time. FIG. 6 is a schematic diagram of a wireless charging device applied to a mobile vehicle according to a preferred embodiment of the present invention, and FIG. 7 is a schematic diagram of a wireless charging device applied to furniture according to a preferred embodiment of the present invention. .

The wireless charging device 2 of the present invention can be used in places where vibrations are likely to occur, such as mobile vehicles or furniture. The following only lists the situations where the wireless charging device 2 is installed in the car and under the table for illustration, but it is not limited thereto. In other In the embodiment, the wireless charging device 2 of the present invention can be used in other vehicles or furniture, and can also be used in other objects where electronic devices can be placed.

As shown in FIG. 6, the wireless charging device 2 can be installed under the shelf 26a of the car 26, and only need to fix the opening side 21b of the housing 21 to the first surface 26aa of the shelf 26a through the adhesive material during installation. In this embodiment, the bonding material can be 3M VHB double-sided tape or other similar products.

When the user wants to use the wireless charging device 2, first connect the power supply (not shown) to the connector 25, and then place the electronic device 27 with the second coil group (not shown) on the first shelf 26a. Two surface 26ab, you can start charging.

In FIG. 6 , we use a mobile phone to illustrate the electronic device 27 , but the electronic device 27 is not limited to the mobile phone. Notebook computers, digital cameras, etc. are also within the scope of the electronic device 27 .

In detail, the circuit board 24 transmits the electric energy from the power supply to the first coil group 23, and the first coil group 23 generates a magnetic field after being energized. When the second coil group (not shown in the figure) is close to the first coil group 23, The second coil group (not shown in the figure) is affected by the magnetic field to generate current, so the second coil group (not shown in the figure) can start to charge the electronic device 27 .

Most importantly, since the ends of the first elastic piece 22bb, the second elastic piece 22bc, the third elastic piece 22cb and the fourth elastic piece 22cc protrude from the accommodating space 21a, when the opening side 21b of the housing 21 is connected to the storage When the first surface 26aa of the frame 26a is pressed, the supporting portion 21d is pressed against the first connecting portion 22ba of the first elastic element 22b and the second connecting portion 22ca of the second elastic element 22c, so that the first elastic piece 22bb, the second elastic piece 22bc, the second elastic piece 22b The three elastic pieces 22cb and the fourth elastic piece 22cc are pushed against by the first surface 26aa of the shelf 26a to generate deformation, thereby forming a balanced supporting force.

During the running of the automobile 26, the first elastic element 22b and the second elastic element 22c absorb the shock energy from the vehicle body to avoid damage to the wireless charging device 2 due to excessive vibration, while the first elastic element 22b, the second elastic element 22c and the The balanced supporting force formed by the support portion 21d makes the first coil group 23 maintain a stable distance from the first surface 26aa, thereby maintaining a constant distance between the first coil group 23 and the second coil group (not shown) of the electronic device 27, To provide stable charging efficiency.

As shown in FIG. 7, the wireless charging device 2 can also be arranged under the table 28, and charging can be started when the electronic device 29 is placed on the table 28. The installation method and operating principle of the wireless charging device 2 in FIG. The embodiment shown in FIG. 6 is the same, so it will not be repeated here.

In addition, in FIG. 7 , we use a notebook computer to illustrate the electronic device 29 , but the electronic device 29 is not limited to the notebook computer, and mobile phones, digital cameras, etc. are also within the scope of the electronic device 29 .

It can be seen from the above embodiments that the present invention maintains a constant distance between the first coil set 23 and the second coil set of the electronic device through the first elastic element 22b, the second elastic element 22c and the support portion 21d.

As mentioned above, the first elastic element 22b and the second elastic element 22c of the wireless charging device of the present invention can absorb shock energy and prevent the wireless charging device 2 from being damaged, while the first elastic element 22b, the second elastic element 22c and The balanced supporting force provided by the support portion 21d can maintain the distance between the first coil set 23 and the second coil set of the electronic device, so that the wireless charging device 2 can also provide stable charging performance when it is used on an object prone to vibration.

In addition, the modular design of the present invention enables the wireless charging device 2 to start using only by fixing the opening side 21b of the housing 21 to the surface of the object through the adhesive material. It is very convenient to install, and the opening side 21b is covered by the surface of the object. After being closed, an airtight space is formed inside the housing 21, which can achieve dustproof, waterproof and other effects.

The above-described embodiments are only to illustrate the technical ideas and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and cannot limit the patent scope of the present invention, that is, all Equivalent changes or modifications made according to the spirit disclosed in the present invention should still be covered within the patent scope of the present invention.

Claims (10)

1. a wireless charging device, comprising:

One housing, comprising:

One accommodation space;

One support portion, is positioned at this accommodation space; And

One open side;

One bogey, is arranged in this accommodation space, and is positioned at above this support portion, and this bogey comprises:

One carrying tablet;

One first flexible member, is positioned at the side of this carrying tablet, comprises:

One first connecting portion, extends this side from this carrying tablet, and contacts with this support portion;

One first shell fragment, extends the one end from this first connecting portion, and its tip end projects is revealed in outside this accommodation space; And

One second shell fragment, extends the other end from this first connecting portion, and its tip end projects is revealed in outside this accommodation space; And

One second flexible member, is positioned at the opposite side of this carrying tablet, comprises:

One second connecting portion, extends this opposite side from this carrying tablet, and contacts with this support portion;

One the 3rd shell fragment, extends the one end from this second connecting portion, and its tip end projects is revealed in outside this accommodation space; And

One the 4th shell fragment, extends the other end from this second connecting portion, and its tip end projects is revealed in outside this accommodation space; And

One first coil groups, is fixedly arranged on a upper surface of this carrying tablet;

Wherein, when this open side of this housing is fixed to a first surface of an object, described support portion supports this first connecting portion of this first flexible member and this second connecting portion of this second flexible member respectively, this first shell fragment, this second shell fragment, the 3rd shell fragment and the 4th shell fragment is made to be produced deformation, to form a balanced support power in order to maintain the distance of this first surface of this first coil groups and this object by this first surface of this object pushing and pressing.

2. wireless charging device as claimed in claim 1, wherein, when the electronic installation that has one second coil groups is placed in a second surface of this object, this second coil groups is to this charge electronic devices.

3. wireless charging device as claimed in claim 2, wherein, this wireless charging device also comprises a circuit board, and this circuit board is fixedly arranged on a lower surface of this carrying tablet.

4. wireless charging device as claimed in claim 3, wherein, this wireless charging device also comprises the connector that is fixed in this circuit board.

5. wireless charging device as claimed in claim 4, wherein this housing also comprises a breach, and this connector is revealed in this breach, to connect a power supply.

6. wireless charging device as claimed in claim 5, wherein this circuit board by the delivery of electrical energy from this power supply to this first coil groups, to produce a magnetic field.

7. wireless charging device as claimed in claim 6, wherein this second coil groups by this influence of magnetic field generation current.

8. wireless charging device as claimed in claim 1, wherein this support portion is two protruded stigmas of the opposite side be arranged in this accommodation space.

9. wireless charging device as claimed in claim 1, wherein this object is mobile traffic or furniture.

10. wireless charging device as claimed in claim 1, wherein this carrying tablet is made up of metal material.