WO2019218941A1

WO2019218941A1 - Wireless charging and heating base and charging and heating device comprising same

Info

Publication number: WO2019218941A1
Application number: PCT/CN2019/086403
Authority: WO
Inventors: 陈胜强; 黄家厚; 唐宇前
Original assignee: 佛山市顺德区米创智能科技有限公司
Priority date: 2018-05-17
Filing date: 2019-05-10
Publication date: 2019-11-21
Also published as: CN208784494U

Abstract

A wireless charging and heating base and a charging and heating device comprising same. The wireless charging and heating base comprises a base body, and a control module (1), a coil module (2), and a function changeover switch module (3) are accommodated in an internal space of the base body; the control module (1) has a foreign object detection function; after the function changeover switch module (3) is triggered, regardless of a detection result of the foreign object detection function, the control module (1) enables the coil module (2) to work normally; the function changeover switch module (3) is triggered in a process of placing an object to be heated on the base. The device is additionally provided with a heating function on a wireless charging base; during use, a function changeover switch can be triggered by the object to be heated, so that the function changeover switch avoids the risk of being randomly touched by a wireless charging terminal, thereby improving the safety and convenience. The structure is simple and easy to implement, and brings great convenience to a user.

Description

Wireless charging heating base and charging heating device including the same

Technical field

The present invention relates to the field of wireless charging and heating, and more particularly to a wireless charging and heating base and a charging and heating device including the same.

Background technique

With the application of mobile wireless charging technology gradually matured and popularized, the current qualified wireless charger control module is equipped with a foreign object detection function, so the detection function limits the function expansion of the wireless charger. There are products in the industry that use a wireless charger to heat the cup, but there is no function switch, which poses an uncontrollable risk to the wireless charging terminal. Adding a manual switch can cause a risk of erroneous operation and increase the trouble of frequent operation when the cup moves.

China's utility model patent CN201620195455.8 provides a wireless power supply device, comprising: a DC power supply module, a power conversion IC module connected to the DC power supply module, and a control module connected in parallel to the power conversion IC module And a temperature control module, a transmitting coil module connected to the control module, a switch module disposed between the DC power module and the transmitting coil module, and a parallel connection between the switch module and the transmitting coil module The harmonic adjustment module is a resonance module connected in series between the switch module and the control module. The utility model relates to a wireless energy supply device which outputs higher power, which can not only realize the power supply to the electric appliance. At the same time, metal objects can be heated to supply heat. In the practical application process mentioned in the above patent, if the mobile phone with metal is charged, the mobile phone is heated at the same time, which may cause damage to the mobile phone.

The Chinese invention patent CN201610102641.7 discloses a wireless charging foreign object detecting device and method, which can detect whether the gravity value at noon is abnormal compared with the reference value before the communication between the wireless power receiving device and the wireless power transmitting device is established, if , wireless charging is not activated; if not, wireless charging is initiated. This solution has limitations on the weight of the object being charged and is not convenient to use.

Summary of the invention

In order to solve the above problems, one of the objects of the present invention is to provide a wireless charging and heating base. The function switching switch module is electrically connected to the control module by setting a function switching switch module, and the control module has a foreign object detecting function when detecting When there is a foreign object on the base, the control module will stop the coil module; otherwise, the coil module works normally; when the function switch module is triggered, regardless of the detection of the foreign object detection function As a result, the control module will cause the coil module to operate normally; the function switch module is triggered during the placement of the object to be heated into the base. The specific invention is as follows:

A base having a wireless charging or heating function, comprising a base body, a control module and a coil module being accommodated in an inner space of the base body, the control module being electrically connected to the coil module, and further comprising a function switching switch module The function switching switch module is electrically connected to the control module; the control module has a foreign object detecting function, and when detecting the presence of foreign matter on the base, the control module will stop the coil module from operating; The coil module works normally; when the function switching switch module is triggered, regardless of the detection result of the foreign object detecting function, the control module will make the coil module work normally; the function switching switch module is waiting Triggering is performed while the heated object is placed in the base.

Preferably, the wireless charging and heating base comprises an upper wall, a bottom wall opposite to the upper wall, and a side wall connecting the upper wall and the bottom wall, and the function switch module comprises a space contained in the inner space of the base body. An inner portion and an outer portion exposed outside the base, the outer portion of the function changeover switch module including a top surface, the top surface being capable of making contact with the object to be heated, thereby triggering the function switch module The upper wall of the base is higher than the top surface.

Preferably, a groove is disposed on an upper wall of the wireless charging and heating base, and the groove is spaced apart from the side wall; the coil module is disposed in an inner space of the body surrounded by the groove The outer portion of the function changeover switch module is housed in the recess.

Preferably, a boss is disposed on an upper wall of the wireless charging and heating base, and the coil module is disposed in an inner space of the body below the boss; and the function switching switch module is disposed around the boss.

Preferably, the wireless charging and heating base comprises an upper wall, a bottom wall opposite to the upper wall, and a side wall connecting the upper wall and the bottom wall, and an upper wall of the wireless charging and heating base is disposed on the upper wall A vertically movable platform of the wall, the coil module being disposed below the platform, at least a portion of the function switch module being disposed below the platform.

Preferably, the control module comprises an infrared sensor, and the function switch module is triggered when at least a part of the object to be heated cuts off a transmission path of infrared rays between the infrared sensors.

Preferably, the wireless charging and heating base comprises an upper wall, a bottom wall opposite to the upper wall, and a side wall connecting the upper wall and the bottom wall, and a groove is arranged on an upper wall of the wireless charging and heating base. The groove is spaced apart from a sidewall of the wireless charging and heating base; the groove includes a first sidewall and a second sidewall opposite to each other, and the first sidewall is provided with a first hole a second hole is defined in the second side wall, the first hole is opposite to the second hole; the infrared sensor comprises an infrared emitter and an infrared receiver, and the infrared emitter is disposed in the One of the one or the second hole, the infrared receiver being disposed in the other of the first or second holes.

Another object of the present invention is to provide a device having a wireless charging or heating function, comprising the above-mentioned base having a wireless charging or heating function and an object to be heated, the object to be heated comprising a magnetic induction body, the object to be heated The bottom portion is provided with a convex member that can trigger the function switch module during the process in which the object to be heated is placed on the base.

Preferably, the object to be heated is a water cup or a kettle, and the convex part is an annular protrusion extending downward from the bottom of the water cup or the kettle.

A method of wireless charging or heating using a base of the above wireless charging or heating function, comprising the following steps:

(1) placing the object to be heated including the magnetic induction body or the wireless receiving end conforming to the wireless charging standard on the base, and if the function switching switch module can be triggered, performing step (2); otherwise, performing the step ( 3);

(2) the control module causes the coil module to work normally;

(3) When the foreign matter detecting function detects the presence of foreign matter on the base, the control module will cause the coil module to stop working; otherwise, the coil module operates normally.

The invention provides a safe and convenient combination of wireless charging and heating functions. On the one hand, the heating function is added on the basis that the wireless charging stand can perform wireless charging; on the other hand, the function switching switch module is added. After the function switching switch module is triggered, regardless of the detection result of the foreign matter detecting function, the control module will cause the coil module to work normally, and the function switching switch is triggered during the process of placing the object to be heated into the base, so that The function switch module avoids the risk of being randomly touched by the wireless charging terminal, further improving safety and convenience. The structure is simple and easy to implement, and brings great convenience to the user.

DRAWINGS

1 is a structural diagram of a wireless charging and heating base according to Embodiment 1 of the present invention;

2 is a structural diagram of a wireless charging and heating base in Embodiment 2 of the present invention;

3 is a structural diagram of a wireless charging and heating base in Embodiment 3 of the present invention;

4 is a structural diagram of a wireless charging and heating base in Embodiment 4 of the present invention.

Detailed ways

Embodiment 1:

The invention provides a wireless charging and heating base, comprising a base body, and a control module 1, a coil module 2 and a function switching switch module 3 are accommodated in an inner space of the base body; the control module 1 is used for heating the entire wireless charging The base module performs control, and the control module 1 has a foreign matter detecting function, which is implemented by a program of the control module, and the function switching switch module 3 is electrically connected to the control module 1, the control module 1 Electrically connected to the coil module 2; the coil module 2 is a transmitting coil module capable of generating a magnetic field, and the magnetic sensing body can be heated when a magnetic sensing body exists in a magnetic field range of the transmitting coil module; The wireless receiving end can be charged when a wireless receiving end exists in the magnetic field of the transmitting coil module. The transmitting coil module is composed of a coil wrapped around the wire and a sheet magnetic shield. The shape of the coil disk is circular, elliptical or rounded rectangular, and the most preferred solution is circular. The number of layers is one or two, the diameter of the wire is from 0.08 mm to 0.3 mm, the single strand is 80 to 120, and the number of windings is 10 to 20, and the sheet-like shield is a ferrite material. Among them, the transmission coil parameters with very good functional effect are: the coil coil shape is circular, the number of layers is 2 layers, the diameter of the wire envelope is 0.08 mm, the single strand is 120, and the number of windings is 12.

The foreign matter detecting function is mainly used for detecting whether a magnetic inductor exists in a magnetic field range of the transmitting coil module, and detecting whether a magnetic inductor exists by detecting a current or a voltage, and when detecting the presence of the magnetic inductor, the control module The control coil module 2 stops working; otherwise, the coil module 2 operates normally; when the heated object triggers the function switching switch module 3, the control module 1 makes the coil module irrespective of the detection result of the foreign matter detecting function. 2 normal work; the heated object can be a water cup or a kettle, such as a metal water cup, etc. When the water cup 11 is a non-metallic material such as glass or ceramic, after the heating film is disposed inside the water cup 11, the wireless charging heating base can also be used. heating.

The wireless charging and heating base includes an upper wall 4, a bottom wall 5 opposite to the upper wall, and a side wall 6 connecting the upper wall and the bottom wall. The wireless charging and heating base is composed of an upper wall 4, a bottom wall 5 and a side wall 6. Surrounded by. A groove 7 is disposed on the upper wall 4 of the wireless charging and heating base, and the groove 7 is spaced apart from the side wall 6 of the wireless charging and heating base; the top view of the groove 7 may have various shapes. Preferably, it should be the same shape as the bottom of the object to be heated (such as a water cup), and the cross section of the groove 7 can be any shape. In the present embodiment, the groove 7 has a rectangular cross section. The recess 7 divides the upper wall of the wireless charging and heating base into two parts: a circular portion surrounded by the recess 7 and an annular portion adjacent to the side wall 6 of the wireless charging and heating base. The coil module is disposed in the middle of a circular structure surrounded by the groove 7; the function switching switch module 3 is disposed in the groove 7, and the function switching switch module 3 is included in the An inner portion 8 in the inner space of the base body and an outer portion 9 exposed in the recess, the outer portion 9 of the function changeover switch module 3 includes a top surface 10, the upper wall 4 of the wireless charging and heating base being higher The function switches the top surface 10 of the outer portion 9 of the switch module.

A raised structure 12 is disposed at the bottom of the water cup 11, and the raised structure 12 includes a horizontal bottom wall. When the water cup 11 is placed on the wireless charging and heating base, the raised structure 12 is accommodated in the The recess 7 is described and the bottom wall of the raised structure 12 abuts the top surface 10 of the outer portion 9 of the function changeover switch module, thereby triggering the function changeover switch module 3. The working process of the wireless charging heating base is as follows:

1. Heating function: when the water cup 11 is placed on the wireless charging heating base, the convex structure 12 of the water cup 11 is accommodated in the recess 7 of the wireless charging heating base, and the convex structure The bottom wall of 12 is in contact with the top surface of the function changeover switch module 3, triggering the function changeover switch module 3, which is capable of heating the magnetic induction body.

2. Charging function: when the wireless receiving end is placed on the wireless charging heating base, since the function switching switch module 3 is not triggered, the foreign object detecting function of the wireless charging heating base is always turned on, when the transmitting coil When a magnetic induction body exists in the magnetic field, the control module cuts off the charging function of the wireless charging heating base after receiving the feedback signal, so that the wireless receiving end is not damaged by being heated.

Embodiment 2:

This embodiment only describes differences from the other embodiments. The wireless charging and heating base includes an upper wall 4, a bottom wall 5 opposite to the upper wall, and a side wall 6 connecting the upper wall and the bottom wall, and a boss 13 is disposed on the upper wall 4 of the wireless charging and heating base. The coil module 2 is housed in an accommodation space formed by the boss 13; the function changeover switch module 3 is disposed around the boss 13, and the function changeover switch module 3 is housed inside the base body An inner portion 8 in the space and an outer portion 9 exposed outside the base body, the outer portion 9 of the function changeover switch module 3 includes a top surface 10, the upper wall of the boss 13 being higher than the function switch The top surface 10 of the outer portion 9 of the module.

Upon heating, the bottom wall of the raised structure 12 of the water cup 11 is in contact with the top surface 10 of the outer portion 9 of the function changeover switch module, triggering the function changeover switch module 3 to enable normal heating.

When charging, the wireless receiving end, such as a mobile phone, has a certain range of the magnetic field of the transmitting coil, so that charging can be performed only when the wireless receiving end is placed on the boss 13; if the wireless receiving end is wrong The operation causes the wireless receiving end to trigger the function switching switch module, and since the wireless receiving end is not within the magnetic field of the transmitting coil, it is not charged.

Embodiment 3:

The wireless charging and heating base includes an upper wall 4, a bottom wall 5 opposite to the upper wall, and a side wall 6 connecting the upper wall and the bottom wall, and a movable platform 14 is disposed on an upper wall of the wireless charging and heating base. The movable platform is movable in a vertical direction of the upper wall 4, the coil module 2 is disposed directly below the movable platform 14, and the movable platform 14 is connected to a bottom of the wireless charging and heating base by a spring; The function switching switch module 2 is disposed directly below the movable platform 14. When gravity acts on the movable platform 14, the movable platform 14 is displaced downward to trigger the function switching switch module 3. The wireless receiving end can be charged only when the entire wireless receiving end with the receiving coil is accommodated in the area where the area of the movable platform 14 is located, so that a certain part of the wireless receiving end is misplaced. When the switching platform 3 is triggered on the movable platform 14, the wireless receiving end is also not charged.

Embodiment 4:

The wireless charging and heating base includes an upper wall 4, a bottom wall 5 opposite to the upper wall, and a side wall 6 connecting the upper wall and the bottom wall, and a groove 7 is disposed on an upper wall of the wireless charging and heating base. The groove 7 is spaced apart from the side wall 6 of the wireless charging and heating base; the groove 7 includes a first side wall 15 and a second side wall 16 opposite to each other, the first side wall 15 a first hole 17 is defined, and the second side wall 16 is provided with a second hole 18, the first hole 17 is opposite to the second hole 18, and the first hole 17 and the second hole The center line of the hole 18 is coincident; the inner space of the base body further houses an infrared sensor, and the function switch is performed when at least a part of the object to be heated cuts a transmission path of infrared rays between the infrared sensors. The switch module will be triggered.

In this embodiment, the infrared sensor includes an infrared emitter and an infrared receiver; infrared rays are present between the infrared emitter and the infrared receiver, and the infrared emitter is disposed in the first hole 17 or One of the second holes 18, the infrared receiver being disposed in the other of the first hole 17 or the second hole 18, when the heated object (the water cup 11) is placed in the wireless charging heating On the base, the raised structure at the bottom of the water cup 11 is received in the recess 7, thereby blocking the infrared rays present between the infrared emitter and the infrared receiver, and the function switching switch module is triggered.

The embodiment of the wireless charging and heating base provided by the present invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples. The description of the above embodiments is only for the purpose of understanding the core concepts of the present invention. It should be noted that those skilled in the art can make several improvements and modifications of the present invention without departing from the principles of the present invention. These modifications and modifications are also within the scope of the claims of the present invention. .

Claims

A base having a wireless charging or heating function includes a base body, and a control module and a coil module are accommodated in an inner space of the base body, and the control module is electrically connected to the coil module, and is characterized in that: a function switching switch module, the function switching switch module is electrically connected to the control module; the control module has a foreign object detecting function, and when detecting the presence of foreign matter on the base, the control module will cause the coil module to stop Working; otherwise, the coil module works normally; when the function switching switch module is triggered, the control module will make the coil module work normally regardless of the detection result of the foreign object detecting function; The switch module is triggered during the placement of the object to be heated into the base.
The base according to claim 1, wherein said wireless charging and heating base comprises an upper wall, a bottom wall opposite to said upper wall, and a side wall connecting said upper and lower walls, said function changeover switch module comprising An inner portion housed in the inner space of the base body and an outer portion exposed outside the base, the outer portion of the function changeover switch module including a top surface, the top surface being capable of coming into contact with the object to be heated, Thereby the function switching switch module is triggered, the upper wall of the base being higher than the top surface.
The base according to claim 2, wherein a groove is disposed on an upper wall of said wireless charging and heating base, said groove being spaced apart from said side wall; said coil module being disposed at said The inner space of the body surrounded by the groove; the outer portion of the function switch module is housed in the groove.
The base according to claim 2, wherein a boss is disposed on an upper wall of said wireless charging and heating base, said coil module being disposed in an inner space of said body below said boss; said function A diverter switch module is disposed around the boss.
The base according to claim 1, wherein said wireless charging and heating base comprises an upper wall, a bottom wall opposite said upper wall, and a side wall connecting said upper and lower walls, said wireless charging and heating base The upper wall is provided with a platform movable in a vertical direction of the upper wall, the coil module is disposed below the platform, and at least a portion of the function switch module is disposed below the platform.
The base according to claim 1, wherein said control module comprises an infrared sensor, said function switching when at least a portion of said object to be heated cuts a transmission path of infrared rays between said infrared sensors The switch module will be triggered.
The base according to claim 6, wherein said wireless charging and heating base comprises an upper wall, a bottom wall opposite said upper wall, and a side wall connecting said upper and lower walls, said wireless charging and heating base a groove is disposed on the upper wall, the groove is spaced apart from a sidewall of the wireless charging and heating base; the groove includes a first sidewall and a second sidewall opposite to each other, the first a first hole is defined in the sidewall, a second hole is defined in the second sidewall, and the first hole is opposite to the second hole; the infrared sensor comprises an infrared emitter and an infrared receiver. The infrared emitter is disposed in one of the first hole or the second hole, and the infrared receiver is disposed in the other of the first hole or the second hole.
A device having a wireless charging or heating function, comprising: the base according to any one of claims 1 to 7 and the object to be heated, the object to be heated comprising a magnetic induction body, the object to be heated The bottom portion is provided with a convex member that can trigger the function switch module during the process of placing the object to be heated into the base.
The device with wireless charging or heating function according to claim 8, wherein the object to be heated is a water cup or a kettle, and the convex member is an annular convex portion extending downward from the bottom of the water cup or the kettle. Start.