CN222016242U

CN222016242U - Wireless charger structure

Info

Publication number: CN222016242U
Application number: CN202420593529.8U
Authority: CN
Inventors: 张慧峰; 金东旭
Original assignee: Huizhou Yulin Technology Co ltd
Current assignee: Huizhou Yulin Technology Co ltd
Priority date: 2024-03-25
Filing date: 2024-03-25
Publication date: 2024-11-15
Anticipated expiration: 2034-03-25

Abstract

The utility model discloses a wireless charger structure, comprising a mounting bracket, a charging bracket, a driving device and a control circuit board, wherein a first guide is provided on one side of the mounting bracket; the charging bracket is provided with a second guide, the first guide is slidably connected to the second guide, so as to provide a guide for the relative sliding of the mounting bracket and the charging bracket; the driving device is used to drive the charging bracket to reciprocate along the first guide or the second guide; the control circuit board comprises at least two layers of circuit etching layers, the control circuit board is electrically connected to the charging bracket and the driving device respectively, and the size of the circuit board is reduced by increasing the number of etching layers of the circuit board, which is conducive to the combined assembly of electrical components and the driving device, thereby greatly reducing the overall volume of the wireless charger.

Description

Wireless charger structure

Technical Field

The utility model relates to the technical field of wireless chargers, in particular to a wireless charger structure.

Background

The wireless charger uses the principle of electromagnetic induction, and the mechanism is similar to a transformer. In the wireless charger, both the transmitting end and the receiving end are provided with coils. When the transmitting end coil is powered on, it will emit electromagnetic signals. After receiving the electromagnetic signals, the coil at the receiving end can convert the electromagnetic signals into current, so that the wireless charging function is realized.

In order to better adapt to more vehicle types and reduce the installation space of a wireless charger, the current wireless charger for vehicles needs to be designed in a miniaturized manner, and because a circuit board needs to be provided with a wireless charging control chip, various driving components, an inverter, a capacitor, an electromagnetic interference circuit, a necessary boosting and reducing circuit, a fuse and other circuits and the installation of the components, the circuit board needs to be larger to install and design the components and the circuits, so that the circuit board area of the existing wireless charger is generally larger and is very unfriendly for intelligent wireless chargers needing to reserve a driving device.

Disclosure of utility model

In order to overcome at least one of the above-mentioned drawbacks of the prior art, the present utility model provides a wireless charger structure, which can solve the problem that the size of the circuit board cannot be reduced in the prior art.

The utility model adopts the technical proposal for solving the problems that:

a wireless charger structure, comprising:

The mounting bracket is provided with a first guide piece at one side;

A charging carriage provided with a second guide member, the first guide member being slidably connected to the second guide member for providing guidance for the relative sliding of the mounting bracket and the charging carriage;

The driving device is used for driving the charging bracket to reciprocate along the first guide piece or the second guide piece;

The control circuit board comprises at least two circuit etching layers, and the control circuit board is respectively and electrically connected with the charging bracket and the driving device.

Through adopting above-mentioned scheme, through the etching layer number that increases the circuit board to reduce the circuit board size, and then be favorable to assembling electrical components and devices and drive arrangement, reduced wireless charger's whole volume greatly.

Further, two opposite large surfaces of the control circuit board are respectively provided with a first layer of circuit etching layer and a second layer of circuit etching layer, and etching circuits in the first layer of circuit etching layer and etching circuits in the second layer of circuit etching layer are arranged in a staggered manner.

Through adopting above-mentioned scheme, utilize two big faces of individual layer control circuit board to set up first layer circuit etching layer and second layer circuit etching layer, and the etching circuit dislocation setting of first layer circuit etching layer and second layer circuit etching layer can effectively improve the utilization ratio of this layer control circuit board.

Further, the control circuit board is provided with a first avoiding opening, the first avoiding opening is used for avoiding the driving device, and the first circuit etching layer and the second circuit etching layer are arranged to avoid the first avoiding opening.

Through adopting above-mentioned scheme, in order to further reduce the size of wireless charger, reduce the installation space that relates to drive arrangement, control circuit board sets up first dodge the mouth for drive arrangement can pass control circuit board installation, and then reduces wireless charger's thickness.

Further, the charging bracket is provided with a heat dissipating device, the control circuit board is provided with a second avoiding port, the second avoiding port is used for avoiding the heat dissipating device, and the first circuit etching layer and the second circuit etching layer are arranged to avoid the second avoiding port.

Through adopting above-mentioned scheme, owing to reduce wireless charger's volume, in order to control the temperature of charging bracket department, set up heat abstractor in charging bracket department and dispel the heat, in addition, the second dodges the mouth and conveniently keeps the smooth and easy in heat abstractor heat dissipation air current wind channel on the one hand, can also make heat abstractor pass the installation of control circuit board, further reduces wireless charger's size.

Further, the charging bracket comprises a sensor, a coil and a movable bracket, wherein the sensor and the coil are installed on the movable bracket, the sensor and the coil are electrically connected with the control circuit board, the sensor is used for monitoring the temperature of the coil, the movable bracket is in transmission connection with the driving device, and the second guide piece is arranged on the movable bracket.

By adopting the scheme, the sensor is used for monitoring the temperature of the coil, so that the coil is prevented from overheating.

Further, the battery pack also comprises a shell, wherein the shell comprises a top cover and an installation box, the top cover and the installation box form a cavity structure, and the installation support, the charging bracket, the driving device and the control circuit board are all arranged in the cavity formed by the top cover and the installation box.

Through adopting above-mentioned scheme, the shell is convenient to install support, charge bracket, drive arrangement and control circuit board's installation is fixed, and the wireless charging terminal that needs to charge is conveniently put to the top cap.

Further, the mounting box is provided with a heat dissipation structure.

Through adopting above-mentioned scheme, further optimize wireless charger holistic radiating effect.

Further, the heat dissipation structure is a fin structure.

By adopting the scheme, the fin structure has good heat dissipation effect and is easy to produce.

Further, one surface of the charging bracket, which faces the mounting bracket, is a sliding surface, the driving device is a motor, and a transmission shaft of the motor is perpendicular to the sliding surface.

Through adopting above-mentioned scheme, because the motor is the size of transmission shaft place orientation generally and is greater than the size of other two orientations, compared, foretell motor transmission shaft perpendicular to sliding surface sets up, indulges the motor promptly, and the size that needs the first of control circuit board reservation dodges the mouth is littleer, and the base plate area of relative surplus control circuit board is bigger, can etch and install more circuits and components and parts to reach under the condition that reduces wireless charger thickness, reduce control circuit board size.

Further, the first guide piece is a guide groove, the second guide piece is a guide block, and the guide block is clamped on the guide groove and can slide along the guide groove.

Through adopting above-mentioned scheme, locate the guide way on the great installing support body of thickness, locate the guide block on the less removal bracket of thickness, and the guide block inserts in the guide way during the installation, can effectively reduce wireless charger holistic thickness.

In summary, the wireless charger structure provided by the utility model has the following technical effects:

Through increasing the etching layer number of the circuit board, the size of the circuit board is reduced, and then the electric appliance element and the driving device are assembled in a combined mode, so that the whole size of the wireless charger is greatly reduced.

Drawings

FIG. 1 is a schematic diagram of an explosive structure of the present utility model;

fig. 2 is a schematic structural view of a transmission part of the present utility model.

Wherein the reference numerals have the following meanings: 1. a mounting bracket; 11. a first guide; 2. a charging cradle; 21. a sensor; 22. a coil; 23. a moving bracket; 24. a second guide; 25. a sliding surface; 26. teeth; 3. a driving device; 31. a motor; 32. a reduction gear box; 4. a control circuit board; 41. a first avoidance port; 42. a second avoidance port; 5. a heat sink; 61. a top cover; 62. a mounting box; 621. fin structure.

Detailed Description

For a better understanding and implementation, the technical solutions of the embodiments of the present utility model will be clearly and completely described and discussed below in conjunction with the accompanying drawings, and it is apparent that what is described herein is only a part, but not all, of the examples of the present utility model, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

For the purpose of facilitating an understanding of the embodiments of the present utility model, reference will now be made to the drawings, by way of example, of specific embodiments, and the various embodiments should not be construed to limit the embodiments of the utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1-2, the utility model discloses a wireless charger structure: the charging device comprises a mounting bracket 1, a charging bracket 2, a driving device 3 and a control circuit board 4, wherein a first guide piece 11 is arranged on one side of the mounting bracket 1; the charging bracket 2 is provided with a second guide member 24, and the first guide member 11 is slidably connected with the second guide member 24 for providing a guide for the relative sliding of the mounting bracket 1 and the charging bracket 2; the driving device 3 is used for driving the charging bracket 2 to reciprocate along the first guide piece 11 or the second guide piece 24; the control circuit board 4 comprises at least two circuit etching layers, and the control circuit board 4 is electrically connected with the charging bracket 2 and the driving device 3 respectively.

Specifically, a first guiding element 11 is provided on one side of the mounting bracket 1, and the first guiding element 11 is optimally provided on a large surface of the mounting bracket 1, because the above structure can facilitate the mounting of the charging bracket 2, and the charging bracket 2 is provided with a second guiding element 24, the first guiding element 11 is slidably connected with the second guiding element 24, wherein the first guiding element 11 and the second guiding element 24 can be selected according to design requirements, for example, a matching mode of a sliding block and a sliding chute or a matching mode of a sliding rail and a sliding chute, which will not be described herein. The driving device 3 is in transmission connection with the charging bracket 2, so that the charging bracket 2 is driven to reciprocate along the direction of the first guide piece 11 of the mounting bracket 1, and the charging bracket 2 is adjusted to be positioned at the optimal charging position. At least two circuit etching layers are arranged on the control circuit board 4, wherein when the two circuit etching layers are arranged, the two circuit etching layers are respectively arranged on the front side and the back side of the control circuit board 4, and when the circuit etching layers are larger than the two circuit etching layers, a plurality of layers of substrates can be arranged to be stacked and welded to form the control circuit board 4, and the circuit etching layers larger than the two layers are arranged on the plurality of layers of substrates.

It should be noted that, because the driving device 3 is disposed, and the first avoiding opening 41 and the second avoiding opening 42 are disposed in the subsequent manner so as to allow the driving device 3 and the heat dissipating device 5 to pass through, the thickness does not exceed the thickness of the driving device 3 and the heat dissipating device 5 even if the multilayer substrates are stacked to form the control circuit board 4, and thus the thickness of the wireless charger is not increased due to the stacking of the multilayer substrates.

The working principle of the structure is as follows:

The control circuit board 4 controls the driving device 3 to drive the charging bracket 2 to slide along the first guide piece 11, so that the charging bracket 2 finds an optimal charging position, then the driving device 3 stops working, and the control circuit board 4 controls the charging bracket 2 to perform wireless charging.

In this embodiment, two opposite large surfaces of the control circuit board 4 are respectively provided with a first layer of circuit etching layer and a second layer of circuit etching layer, and the etched circuits in the first layer of circuit etching layer and the etched circuits in the second layer of circuit etching layer are arranged in a staggered manner, so that the electrical performance and reliability of the control circuit board 4 can be improved by adopting double-sided staggered etching.

In some embodiments, in order to further reduce the size of the wireless charger, the installation space related to the driving device 3 is reduced, the control circuit board 4 is provided with a first avoidance port 41, the first avoidance port 41 is used for avoiding the driving device 3, and the first circuit etching layer and the second circuit etching layer are arranged avoiding the first avoidance port 41, so that the driving device 3 can be installed through the control circuit board 4, and the thickness of the wireless charger is reduced. As an alternative, the shape of the first avoidance port 41 may be set to be the shape projected by the driving device 3 on the control circuit board 4, so as to reduce the size of the first avoidance port 41 as much as possible, thereby meeting the basic circuit design on the control circuit board 4 and the space for welding components.

In some embodiments, because the volume of the wireless charger is reduced, the heat dissipation of the wireless charger can be affected, in order to control the temperature at the charging bracket 2, the charging bracket 2 is provided with the heat dissipation device 5, the heat dissipation device 5 is used for accelerating the heat dissipation at the charging bracket 2, in order to facilitate the installation of the heat dissipation device 5, and the thickness of the wireless charger cannot be increased, the control circuit board 4 is provided with the second avoidance port 42, the second avoidance port 42 is used for avoiding the heat dissipation device 5, the first circuit etching layer and the second circuit etching layer avoid the second avoidance port 42, the second avoidance port 42 is convenient to keep the smoothness of the heat dissipation airflow duct of the heat dissipation device 5 on one hand, and the heat dissipation device 5 can also pass the control circuit board 4 to install, so that the size of the wireless charger is further reduced. Similarly, the shape of the second avoiding opening 42 can be set to be the projected shape of the heat dissipating device 5 on the control circuit board 4, so as to reduce the size of the first avoiding opening 41 as much as possible, thereby meeting the requirement of the space for welding the circuit design and the components of the foundation on the control circuit board 4, in this embodiment, the heat dissipating device 5 is a heat dissipating plate and a heat dissipating fan, the heat dissipating plate is attached to the charging bracket 2 for absorbing heat, and the heat dissipating fan cools the heat dissipating plate.

In this embodiment, the charging bracket 2 includes a sensor 21, a coil 22 and a moving bracket 23, the sensor 21 and the coil 22 are mounted on the moving bracket 23, the sensor 21 and the coil 22 are both electrically connected with the control circuit board 4, the sensor 21 is used for monitoring the temperature of the coil 22, the moving bracket 23 is in transmission connection with the driving device 3, and the second guide member 24 is disposed on the moving bracket 23. The sensor 21 is used to monitor the temperature of the coil 22, thereby preventing the coil 22 from being in an overheated state, and when the temperature of the coil 22 is detected to be too high, heat dissipation can be accelerated by shutting off the power supply to the coil 22 and/or by adjusting the power of the heat dissipation device 5.

In this embodiment, the wireless charger structure further includes a housing, the housing includes a top cover 61 and a mounting box 62, the top cover 61 and the mounting box 62 form a cavity structure, and the mounting bracket 1, the charging bracket 2, the driving device 3 and the control circuit board 4 are all disposed in the cavity formed by the top cover 61 and the mounting box 62. Correspondingly, when the heat dissipating device 5 is arranged, the heat dissipating device 5 is also arranged in the mounting box 62, and the mounting box 62 is provided with an air outlet for discharging hot air from the heat dissipating device 5.

In some embodiments, the mounting box 62 is provided with a heat dissipating structure that can accelerate the dissipation of heat from the mounting box 62. The heat dissipation structure can be formed by selecting the modes of enlarging the ventilation opening, replacing the material with higher heat conductivity coefficient to manufacture the mounting box 62 and the like according to the requirement, in the embodiment, the heat dissipation structure is the fin plate structure 621, the fin plate structure 621 is arranged on the outer surface of the mounting box 62 to be optimal, the fin plate structure 621 has good heat dissipation effect and is easy to produce.

In this embodiment, the surface of the charging bracket 2 facing the mounting bracket 1 is the sliding surface 25, the driving device 3 is the motor 31, the transmission shaft of the motor 31 is perpendicular to the sliding surface 25, that is, the longitudinal motor 31, because the size of the motor 31 in the direction of the transmission shaft is generally larger than that of the other two directions, compared with the size of the first avoiding opening 41 reserved by the control circuit board 4 when the transmission shaft of the motor 31 is perpendicular to the sliding surface 25, the substrate area of the opposite remaining control circuit board 4 is larger, and more circuits and components can be etched and installed, thereby reducing the size of the control circuit board 4 under the condition of reducing the thickness of the wireless charger. The driving device 3 may be a combination of the motor 31 and the reduction gear box 32, and the motor 31 may be indirectly connected to the traveling carriage 23 through the reduction gear box 32.

In this embodiment, the first guide member 11 is a guide groove, the second guide member 24 is a guide block, and the guide block is clamped on the guide groove and can slide along the guide groove, the guide groove is arranged on the body of the mounting bracket 1 with a larger thickness, the guide block is arranged on the moving bracket 23 with a smaller thickness, and the guide block is inserted into the guide groove during mounting, so that the thickness of the whole wireless charger can be effectively reduced. Correspondingly, the guide block is required to be provided with teeth 26 meshed with an output gear of the motor 31 or an output gear of the reduction gear box 32, so that the motor 31 directly or indirectly drives the guide block to move.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A wireless charger structure, comprising:

The mounting bracket is provided with a first guide piece at one side;

2. The wireless charger structure of claim 1, wherein the two opposite large surfaces of the control circuit board are respectively provided with a first circuit etching layer and a second circuit etching layer, and the etching lines in the first circuit etching layer and the etching lines in the second circuit etching layer are arranged in a staggered manner.

3. The wireless charger structure of claim 2, wherein the control circuit board is provided with a first avoidance port, the first avoidance port is used for avoiding the driving device, and the first circuit etching layer and the second circuit etching layer are arranged to avoid the first avoidance port.

4. The wireless charger structure of claim 2, wherein the charging bracket is provided with a heat dissipating device, the control circuit board is provided with a second avoiding opening, the second avoiding opening is used for avoiding the heat dissipating device, and the first circuit etching layer and the second circuit etching layer are arranged to avoid the second avoiding opening.

5. The wireless charger structure of claim 1, wherein the charging bracket comprises a sensor, a coil and a moving bracket, the sensor and the coil are mounted on the moving bracket, the sensor and the coil are electrically connected with the control circuit board, the sensor is used for monitoring the temperature of the coil, the moving bracket is in transmission connection with the driving device, and the second guide member is arranged on the moving bracket.

6. The wireless charger of any one of claims 1-5, further comprising a housing, said housing comprising a top cover and a mounting box, said top cover and said mounting box forming a cavity structure, said mounting bracket, said charging bracket, said drive means and said control circuit board being disposed within said cavity formed by said top cover and said mounting box.

7. The wireless charger structure of claim 6, wherein said mounting case is provided with a heat dissipating structure.

8. The wireless charger structure of claim 7, wherein said heat dissipating structure is a fin structure.

9. The wireless charger structure of claim 1, wherein the charging bracket has a sliding surface facing the mounting bracket, the driving device is a motor, and a transmission shaft of the motor is perpendicular to the sliding surface.

10. The wireless charger structure of claim 1, wherein the first guide member is a guide slot, the second guide member is a guide block, and the guide block is clamped to the guide slot and can slide along the guide slot.