CN212462892U - wireless charging device - Google Patents

Abstract

The present application relates to the technical field of wireless charging devices, and discloses a wireless charging device. The wireless charging device includes: a power supply module; a base provided with an accommodating cavity; a coil, disposed in the accommodating cavity, connected to the power supply module, and configured to receive power supply from the power supply module and under the condition of passing current generating a magnetic field; and a control circuit, connected to the power supply module, configured to control the power supply operation of the coil. By arranging the coil in the accommodating cavity of the base, the coil and the base constitute a wireless charging transmitter; the power supply module in the wireless charging device supplies power to the coil to solve the power supply problem of the wireless charging transmitter, and the wireless charging transmitter is shared with the wireless charging equipment It can overcome the limitation that the wireless charging and transmitting device can only be set independently; the power supply operation of the coil is controlled by the control circuit; the convenience for the user to use the wireless charging and transmitting device is improved.

Description

Wireless charging equipment

Technical Field

The present application relates to the technical field of wireless charging devices, and for example, to a wireless charging apparatus.

Background

The wireless charging technology is derived from a wireless electric energy transmission technology and can be divided into a low-power wireless charging mode and a high-power wireless charging mode, the low-power wireless charging mode usually adopts an electromagnetic induction mode, energy is transmitted between a charger and an electric device through a magnetic field, and the charger and the electric device are not connected through wires, so that the charger and the electric device can be exposed without conductive contacts. The primary coil generates a certain current in the secondary coil through electromagnetic induction with an alternating current of a certain frequency, thereby transferring energy from a transmission end to a receiving end. The existing wireless charging transmitting devices are all independent devices, need independent power supply modules, occupy sockets and spaces, are generally small, have strict placement requirements on devices with charging requirements, and influence charging efficiency after deviation occurs in positions.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the existing wireless charging transmitting device is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides wireless charging equipment to solve the problem that a wireless charging transmitting device is inconvenient to use.

In some embodiments, the wireless charging device comprises: a power supply module; the base is provided with an accommodating cavity; the coil is arranged in the accommodating cavity, is connected with the power supply module, is configured to receive power supply of the power supply module and generates a magnetic field under the condition that current passes through the coil; a control circuit connected with the power supply module and configured to control a power supply operation of the coil.

The wireless charging equipment provided by the embodiment of the disclosure can realize the following technical effects:

the coil is arranged in the accommodating cavity of the base, and the coil and the base form a wireless charging transmitting device; the power supply module in the wireless charging equipment supplies power to the coil, so that the power supply problem of the wireless charging transmitting device is solved, the wireless charging transmitting device and the wireless charging equipment share the space and share the power supply, and the limitation that the wireless charging transmitting device can only be independently arranged is overcome; controlling the power supply operation of the coil through a control circuit; the convenience that the user used wireless emitter that charges has been improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a wireless charging device provided in an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of another wireless charging device provided in the embodiment of the present disclosure;

fig. 3 is a schematic diagram of multiple rows of coils provided by an embodiment of the present disclosure.

Reference numerals:

10: a power supply module; 20: a base; 201: an accommodating chamber; 30: a coil; 301: a first row of coils; 302: a second row of coils; 303: a first layer of coils; 304: a second layer of coils; 50: a housing; 60: and a support member.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 1 to 3, an embodiment of the present disclosure provides a wireless charging device, which includes a power supply module 10, a base 20, a coil 30, and a control circuit 40; the base 20 is provided with an accommodating cavity 201; the coil 30 is arranged in the accommodating cavity 201, the coil 30 is connected with the power supply module 10, and is configured to receive power supplied by the power supply module and generate a magnetic field under the condition that current passes through the coil 30; the control circuit 40 is connected to the power supply module 10 and configured to control a power supply operation of the coil.

By adopting the embodiment, the coil is arranged in the accommodating cavity of the base, and the coil and the base form the wireless charging transmitting device; the power supply module in the wireless charging equipment supplies power to the coil, so that the power supply problem of the wireless charging transmitting device is solved, the wireless charging transmitting device and the wireless charging equipment share the space and share the power supply, and the limitation that the wireless charging transmitting device can only be independently arranged is overcome; controlling the power supply operation of the coil through a control circuit; the convenience that the user used wireless emitter that charges has been improved.

The wireless charging device provided by the embodiment of the disclosure can be a television or a display. As shown in fig. 1, the wireless charging device further includes a housing 50, the power supply module 10 and the control circuit 40 are disposed in the housing 50, and the housing 50 is disposed on the top of the base 20. The base serves to support the housing. Optionally, the housing 50 is connected to the base 20 by a support 60. The support member may be a rectangular parallelepiped of columnar shape or elongated shape. The contact area of the supporting piece and the base is smaller than the area of the upper surface of the base. The contact position of the supporting piece and the base is positioned at the central position of the base or close to the central position of the base.

Optionally, the upper portion of the base is provided with an opening. The opening is disposed around the support. Optionally, the bottom of the base is provided with an opening for accessing the coil. Optionally, the side of the base is provided with an opening for accessing the coil. Optionally, the base is rotatably connected with a panel at the opening. Optionally, the panel is fitted with the opening. Like this, be favorable to getting through the opening and put the coil, treat that charging equipment places on the panel, treat charging equipment after the coil circular telegram and carry out the operation of charging. Optionally, the opening area of the base is smaller than or equal to the area of the opposite accommodating cavity. Thus, the strength of the base is ensured by reducing the opening area of the base. In the case of an opening in the upper part of the base, the receiving chamber is arranged around the support. Thus, the strength of the base is ensured. Optionally, the base is circular or square in cross-section.

Optionally, the upper surface of the base is a horizontal surface. Thus, the device to be charged is not easy to slide off. Optionally, the upper surface of the base is a slope with a certain roughness. In this way, a friction force is generated between the device to be charged and the upper surface of the base, thereby preventing the device to be charged from sliding off. Optionally, the upper surface of the base is provided with a blocking portion. In this way, the device to be charged is prevented from slipping or falling by the stopper. Wherein, the blocking part can be a baffle.

The coil is connected with the power supply module through a lead. Optionally, the wire is threaded inside the support. Like this, be favorable to wireless charging equipment's outward appearance clean and tidy, whole pleasing to the eye. Optionally, the bottom area of the coil is less than or equal to the bottom area of the accommodating cavity. Like this, be favorable to make full use of to hold the chamber, the charging equipment is treated to the large tracts of land coil charges, is favorable to accelerating the speed of charging, has shortened the charge time.

In practical application, the wireless charging equipment can be remotely controlled by remotely controlling the wireless charging equipment, and the starting and the closing of the charging mode of the coil and different power supply modes of the coil are controlled.

Alternatively, as shown in fig. 1, there are a plurality of coils 30, and the plurality of coils 30 are arranged in parallel; wherein, the output terminal of the power supply module 10 is connected with the parallel terminals of the plurality of coils 30. Like this, connect in power module respectively through a plurality of coils, be favorable to carrying out different charging operation to a plurality of battery charging outfits of treating through a plurality of coils, improved wireless battery charging outfit's convenience and practicality, promoted user's experience impression. Optionally, the plurality of coils are uniformly spaced in the accommodating cavity.

Optionally, each coil is connected in series with an electronic control element. The control circuit can independently control the power supply operation of each coil by controlling the electric control element. Like this, multiple mode of charging can be realized to a plurality of coils, not only satisfies the different demand of charging of treating the battery charging outfit, but also can charge the battery charging outfit of treating of a plurality of different demands of charging simultaneously. The electric control element is a switch.

Alternatively, the parallel ends of the plurality of coils may be disposed toward the center of the base. Therefore, the output end of the power supply module is connected with the parallel ends of the coils conveniently, and the length of a connecting wire between the output end of the power supply module and the parallel ends of the coils is shortened.

Alternatively, as shown in connection with fig. 3, the plurality of coils 30 are arranged in one or more rows. Therefore, the charging device is favorable for charging a plurality of devices to be charged, and different requirements of different devices to be charged are met. In case the plurality of coils is arranged in a row, the plurality of coils may be arranged around the support, i.e. the plurality of coils enclose a circle. In this way, the parallel ends of the plurality of coils are facilitated to face the center of the base and to be connected with the output end of the power supply module. Under the condition that a plurality of coils are a row and are the sharp setting, the even cloth of a plurality of coils interval is located and is held the intracavity.

Under the condition that a plurality of coils are the multirow setting, every row of coil encircles the support piece setting in proper order, promptly, the multirow coil encloses into the circle of a plurality of different diameters. Every adjacent row of coils is all established the setting. In the case where the plurality of coils of each row are arranged linearly in the multiple-row arrangement, the multiple rows of coils may be symmetrically arranged on both sides of the support member. Or a plurality of rows of coils are uniformly distributed in the containing cavity at intervals.

Alternatively, the areas of the plurality of coils are partially or entirely the same. Therefore, the charging requirements of different devices to be charged can be met. When the areas of the plurality of coils are all the same, the plurality of coils are arranged at uniform intervals. In the case where the area portions of the plurality of coils are the same, the coils having a small area and the coils having a large area may be alternately arranged. When the coils having small areas are arranged adjacently and the coils having large areas are arranged adjacently, the pitch between the adjacent coils having small areas is smaller than the pitch between the adjacent coils having large areas. Therefore, the interference between the equipment to be charged corresponding to the coil with the small area and the equipment to be charged corresponding to the coil with the large area is avoided.

Optionally, as shown in connection with fig. 3, the coils arranged in multiple rows include a first row of coils 301 and a second row of coils 302; wherein the coils in the first row of coils 301 are staggered with the coils in the second row of coils 302. Like this, be favorable to the space of make full use of holding the chamber through first row of coil and the staggered arrangement of second row of coil. In addition, treat under the great condition of battery charging outfit area, through coil staggered arrangement in the coil in the first row of coil and the second row of coil, help enlarging the interval of adjacent coil in the first row of coil, satisfy and treat battery charging outfit to the demand of placing the area, improved the utilization ratio that holds the chamber.

Optionally, the area of the coils in the first row of coils is greater than or equal to the area of the coils in the second row of coils. The first row of coils and the second row of coils do not interfere with each other when being arranged. Thus, different devices to be charged can be satisfied through the first row of coils and the second row of coils.

The number of coils in the first row of coils is not limited in the embodiments of the present disclosure. If the first row of coils comprises M coils, the second row of coils comprises N coils, wherein N is more than or equal to M and more than or equal to 2. Optionally, the plurality of coils in the first row of coils are evenly distributed at intervals. A plurality of coils in the second row of coils are evenly distributed at intervals.

Optionally, the coils arranged in multiple rows include the S row of coils, wherein S ≧ 2. The coils in two adjacent rows of coils are staggered.

Optionally, the plurality of coils are arranged in layers in a stack. Therefore, the strength of a magnetic field generated by the coils is enhanced, the charging efficiency of the equipment to be charged is accelerated, and the charging time of the equipment to be charged is shortened.

Alternatively, the area of the plurality of coils arranged in a stack is the same. In the case of the layout, the plurality of coils are arranged in sequence in correspondence, that is, the symmetrical center lines of the plurality of coils are on the same plane. This helps to increase the strength of the magnetic field generated by the coil.

In practical applications, part or all of the area of the coils of any layer may include a plurality of coils arranged in one or more rows. In this way, when the coils are arranged in a plurality of rows on a stacked basis, the strength of the magnetic field generated by the coils can be advantageously increased. Optionally, the area of the plurality of coils arranged in one or more rows in any layer of coils is partially or completely the same.

In practical application, the parallel ends of the plurality of coils which are arranged in a stacked mode are connected with an electric control element in series, the parallel ends are connected with the output end of the power supply module, and the power supply operations of the plurality of coils are consistent.

Optionally, as shown in connection with fig. 2, the coils of the multi-layer arrangement include a first layer of coils 303 and a second layer of coils 304; wherein the coils in the first layer of coils 303 are arranged in a staggered manner with the coils in the second layer of coils 304. Therefore, the first layer of coils and the second layer of coils are arranged in a staggered mode, the arrangement area of the coils arranged in a multi-layer mode is enlarged, and the coverage range of a magnetic field is enlarged. Here, "offset arrangement" is to be understood as: the first layer coil and the second layer coil are arranged up and down and are arranged asymmetrically.

Optionally, the area of the coils in the first layer of coils and the area of the coils in the second layer of coils are partially or completely the same. In the case where the area of the coil in the first layer coil is larger than the area of the coil in the second layer coil, the first layer coil is disposed below the second layer coil. In this way, it is advantageous to enhance the stability of the first layer coil and the second layer coil.

Optionally, the first layer of coils and the second layer of coils are adhesively or removably attached. Therefore, the stability of the magnetic field generated by the coil in the charging process is improved, and the second layer coil and the first layer coil are prevented from sliding relatively.

The number of layers of the coils arranged in multiple layers is not limited in the embodiments of the present disclosure. For example, the coil comprises Q layers, wherein Q is more than or equal to 2.

Optionally, the coil is detachably connected to the inner side wall of the base. Like this, be favorable to the dismouting of coil on the one hand, on the other hand is favorable to improving the stability of coil in charging process. Optionally, the inner side wall of the base is provided with a groove, and the edge of the coil is embedded in the groove. Optionally, the edge of the coil is clamped to the inner side wall of the base. Optionally, the coil is threadably connected to the inner sidewall of the base by a fastener. Wherein the coil is disposed proximate to the top of the base. Thus, the stability of the charging current of the equipment to be charged in the charging process is improved.

Optionally, the power supply operation includes part or all of power-on, power-off, overvoltage protection, overcurrent protection, overheat protection and standby protection. Thus, the control circuit controls the power supply current of the power supply module to the coil through different power supply operations and protects the coil.

In the embodiment of the disclosure, the control circuit is a part of the equipment mainboard, and different power supply modes are realized through different power supply operations. For example, under the condition that the power supply module is not powered off, the control circuit controls the power supply module to continuously supply power to the coil, and the device to be charged is placed on the base and is immediately charged through the coil. In addition, the control circuit can control the power supply module to supply power to the coil only when the equipment is in a starting state. I.e. the device is switched on, the coil starts the charging mode. The control circuit can control the power supply module to stop supplying power to the coil. Under the condition that the equipment to be charged does not exist, the control circuit controls the power supply module to supply power to the coil by power supply operation of overcurrent protection, overvoltage protection or standby protection. Therefore, the energy consumption is reduced, and the aim of continuous standby is fulfilled. And under the condition that the equipment to be charged is charged, the control circuit controls the power supply module to supply large current to the coil. In this way, it is helpful to shorten the charging time period during which the device to be charged is full. In addition, when the coil charges the equipment to be charged and the electric quantity reaches the preset value of the equipment to be charged, the control circuit controls the power supply module to supply power to the coil with low current.

Optionally, the wireless charging device further includes a detection module (not shown in the figure), which is connected to the control circuit and configured to detect the presence of the device to be charged. In this way, the magnitude of the supply current of the power supply module to the coil is controlled by the presence or absence of the device to be charged. When the detection module detects that the equipment to be charged is placed on the base, the detection module sends a signal to the control circuit, and the control circuit controls the power supply module to supply large current to the coil. In this way, the charging time period of the device to be charged is facilitated to be shortened. And under the condition that the detection module does not detect the equipment to be charged, the control circuit controls the power supply module to supply power to the coil at a low current. Thus, energy consumption is saved. In practical application, the detection module can achieve the detection purpose through periodic detection. The detection purpose can be realized by triggering the switch.

Optionally, the detection module is a pressure sensor. The detection module is arranged on the upper surface of the base. Under the condition that the equipment to be charged is placed on the upper surface of the base, the pressure sensor transmits signals to the control circuit, and the control circuit sends an instruction to control the power supply module to supply large current to the coil. And under the condition that the device to be charged leaves the upper surface of the base midway in the charging process, the pressure sensor transmits a signal to the control circuit, and the control circuit sends an instruction to control the power supply module to continuously supply the coil with large current for a preset time T, wherein T is more than or equal to 30 ". After the preset time T, if the signal of the pressure sensor is not received, the control circuit controls the power supply module to supply power to the coil in a low current mode. If the signal of the pressure sensor is received within the preset time T, the control circuit controls the power supply module to continuously supply the coil with large current, and the limit of the preset time is eliminated. Thus, energy consumption is saved. In addition, the time of the power supply module for supplying power to the coil low current is delayed, so that the conversion times of the output current of the power supply module are reduced, the service lives of the power supply module and the coil are prolonged, and the charging stability is improved. The type of the pressure sensor is not particularly limited in the embodiments of the present disclosure, and the pressure sensor may employ a YZC131 sensor module HX711 module.

Optionally, the detection module is a trigger switch. The trigger switch may be disposed on a housing, a support, or a base of the wireless charging device. The control circuit controls the power supply current of the power supply module through the trigger switch, different power supply modes are realized, and energy consumption is saved. Under the condition that the detection module adopts the trigger switch, the control circuit can control the power supply current mode of the power supply module when the detection module is a pressure sensor.

Optionally, the base is provided with an external interface (not shown in the figure), and the external interface is configured to be connected with an external power supply to supply power to the coil. Thus, the disadvantage of a single power supply mode is overcome. The coil is connected with an external power supply through an external interface, and the external power supply supplies power to the coil. Wherein, the external power supply can be a commercial power supply or a mobile power supply.

In practical application, when the wireless charging device is damaged and cannot normally supply power to the coil, the coil can be connected with a mains supply or a mobile power supply through an external interface to charge the device to be charged. In addition, under the condition that the mains supply has a power failure, the coil can be connected with the mobile power supply through the external interface to charge the equipment to be charged. Like this, wireless charging equipment's practicality has been improved, wireless charging equipment's convenience has been improved.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A wireless charging device, comprising a power supply module, is characterized in that, also comprises: The base is provided with an accommodating cavity; a coil, disposed in the accommodating cavity, connected to the power supply module, and configured to receive power supply from the power supply module and generate a magnetic field under the condition of passing current; A control circuit, connected to the power supply module, is configured to control the power supply operation of the coil. 2 . The wireless charging device according to claim 1 , wherein there are multiple coils, and the multiple coils are arranged in parallel; wherein the output end of the power supply module is connected to the parallel ends of the multiple coils. 3 . connected. 3. The wireless charging device according to claim 2, wherein a plurality of the coils are arranged in one or more rows. 4 . The wireless charging device according to claim 3 , wherein the coils arranged in multiple rows include a first row of coils and a second row of coils; wherein the coils in the first row of coils are the same as the second row of coils. 5 . The coils in the coil are staggered. 5 . The wireless charging device according to claim 2 , wherein a plurality of the coils are stacked and arranged in multiple layers. 6 . 6 . The wireless charging device according to claim 5 , wherein the coils arranged in multiple layers include a first layer of coils and a second layer of coils; wherein the coils in the first layer of coils are connected to the second layer of coils. 7 . The coils in the coil are misaligned. 7 . The wireless charging device according to claim 1 , wherein the coil is detachably connected to the inner side wall of the base. 8 . 8. The wireless charging device according to claim 1, wherein the power supply operation comprises: Part or all of power-on, power-off, over-voltage protection, over-current protection, over-temperature protection, and standby protection. 9. The wireless charging device according to claim 1, further comprising: A detection module, connected to the control circuit, is configured to detect the presence of the device to be charged. 10 . The wireless charging device according to claim 1 , wherein the base is provided with an external interface, and the external interface is configured to be connected to an external power source to supply power to the coil. 11 .

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