CN113452149A - Wireless charging box - Google Patents

Wireless charging box Download PDF

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Publication number
CN113452149A
CN113452149A CN202110671947.5A CN202110671947A CN113452149A CN 113452149 A CN113452149 A CN 113452149A CN 202110671947 A CN202110671947 A CN 202110671947A CN 113452149 A CN113452149 A CN 113452149A
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China
Prior art keywords
coil
charging
side wall
box
space
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CN202110671947.5A
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Chinese (zh)
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CN113452149B (en
Inventor
常雨芳
尹帅帅
阎晟
唐杨
李飞
黄文聪
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Hubei University of Technology
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Hubei University of Technology
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0044Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本发明涉及一种无线充电箱,包括:箱体、箱盖、充电线圈组及充电电路,所述箱盖盖设在所述箱体上,所述箱体内形成有一充电空间,所述箱盖上端面及所述箱体外周面形成充电接触面,所述箱体侧壁及底板内形成有夹层空间,所述充电线圈组、所述充电电路设置在所述夹层空间内,所述充电电路与所述充电线圈组电连接,所述充电线圈在多个互相不平行的平面内形成能量密度均一的充电磁场,所述充电磁场能够覆盖所述充电空间及所述充电接触面,本发明所提供的无线充电箱,可根据需求选择充电位置;可以在充电箱内部为蓝牙耳机、智能手环等小型设备充电,避免丢失;可以在充电箱外围一圈为一些较大型设备充电,满足多种充电需求。

Figure 202110671947

The invention relates to a wireless charging box, comprising: a box body, a box cover, a charging coil group and a charging circuit, the box cover is arranged on the box body, a charging space is formed in the box body, and the box cover The upper end surface and the outer peripheral surface of the box form a charging contact surface, and an interlayer space is formed in the side wall and bottom plate of the box body, and the charging coil group and the charging circuit are arranged in the interlayer space, and the charging circuit It is electrically connected to the charging coil group, and the charging coil forms a charging magnetic field with uniform energy density in a plurality of planes that are not parallel to each other, and the charging magnetic field can cover the charging space and the charging contact surface. The provided wireless charging box can choose the charging location according to your needs; you can charge small devices such as Bluetooth headsets and smart bracelets inside the charging box to avoid loss; you can charge some larger devices around the outside of the charging box to meet a variety of requirements. charging needs.

Figure 202110671947

Description

Wireless charging box
Technical Field
The invention relates to the technical field of wireless charging, in particular to a wireless charging box.
Background
The wireless charging technology is a technology for charging by utilizing an electromagnetic induction principle, a transmitting end and a receiving end are respectively provided with a coil, the transmitting coil is connected with a power supply in a wired mode to generate an electromagnetic signal, and the receiving coil receives the electromagnetic signal transmitted by the transmitting coil, so that the wireless charging equipment is charged.
At present, wireless charging is mostly realized by adopting a wireless charging panel, and a smart phone waits for a charging device to be placed on the wireless charging panel and fixed until the whole wireless charging process is completed. Therefore, the existing scheme has more limitations on wireless charging, does not support wireless charging for a plurality of devices to be charged simultaneously, and is poor in user experience.
Disclosure of Invention
In view of the above, the present invention provides a wireless charging box capable of simultaneously charging a plurality of products.
In order to achieve the above object, an aspect of the present invention to solve the above problems is to provide a wireless charging box, including:
the charging circuit comprises a box body, a box cover, a charging coil group and a charging circuit, wherein the box cover is covered on the box body, a charging space is formed in the box body, the upper end face of the box cover reaches the outer peripheral face of the box body to form a charging contact face, an interlayer space is formed in the side wall of the box body and the bottom plate of the box body, the charging coil group is arranged in the interlayer space, the charging circuit is electrically connected with the charging coil group, the charging coils form charging magnetic fields with uniform energy density in a plurality of non-parallel planes, and the charging space reaches the charging contact face.
Further, the box includes outer wall and inner wall, the outer wall with the inner wall is fixed, form between the outer wall with the inner wall the intermediate layer space, charging coil and charging circuit sets up in the intermediate layer space.
Furthermore, the interlayer space is provided with a bottom space and a side wall space surrounding the bottom space, the charging coils are arranged in the bottom space and the side wall space, and the charging coil group can at least form a charging magnetic field with uniform energy density in a plane parallel to the bottom of the box body and a plane parallel to the side wall of the box body.
Further, the charging coil group comprises a side wall coil and a horizontal coil, the side wall coil is parallel to the side wall of the box body, the horizontal coil is parallel to the bottom of the box body, and the side wall coil is electrically connected with the horizontal coil and the charging circuit.
Furthermore, the side wall coil and the horizontal coil adopt an integrated structure, a litz wire sequentially penetrates through the side wall space, and the horizontal coil parallel to the bottom of the box body and the side wall coil parallel to the side wall of the box body are formed in the side wall space.
Further, four side wall coils and one horizontal coil are provided, the four side wall coils are respectively parallel to the side walls of the box body in different directions, the four side wall coils 31 are respectively a first side wall coil M1, a second side wall coil M2, a third side wall coil M3 and a fourth side wall coil M4, the charging circuit comprises an inverter circuit, a first capacitor C1 and a double-pole double-throw switch S1, the output end of the inverter circuit is electrically connected with one end of the first capacitor C1, the other end of the first capacitor C1 is connected with one end of the horizontal coil 32, the other end of the horizontal coil 32 is electrically connected with one end of the first side wall coil M1, the other end of the first side wall coil M1 is electrically connected with one end of the second side wall coil M2, the other end of the second side wall coil M2 is electrically connected with the second movable contact and the third movable contact of the double-pole double-throw switch S1, a first movable contact and a fourth movable contact of the double-pole double-throw switch S1 are electrically connected with a first input end and a second input end of the inverter circuit, one end of the third side wall coil M3 is electrically connected with a first fixed contact of the double-pole double-throw switch S1, the other end of the third side wall coil M3 is electrically connected with one end of the fourth side wall coil M4, and the other end of the fourth side wall coil M4 is electrically connected with a second fixed contact of the double-pole double-throw switch S1.
Further, still include adjustment mechanism, adjustment mechanism includes the mount and rotates the knob, the mount sets up in the lateral wall space, the mount with lateral wall space inner wall is articulated, it wears to locate to rotate the knob the lateral wall of box and in the mount is fixed, the lateral wall coil is fixed on the mount, rotate the knob, make the mount rotates along the axis of setting for, makes the lateral wall coil deflects along setting for the axis to the angle of charging of adaptation equipment.
Furthermore, the fixing frame comprises an x-axis framework and a y-axis framework, the x-axis framework is vertically fixed with the y-axis framework, the rotating knob comprises an x-axis knob and a y-axis knob, the x-axis knob penetrates through the side wall of the box body and is fixed on the x-axis framework, the y-axis knob penetrates through the side wall of the box body and is fixed on the y-axis framework, and the side wall coil can rotate along the x axis by rotating the x-axis knob; rotating the y-axis knob causes the sidewall coil to rotate along the y-axis.
Further, be provided with the butt bulb on the inner wall, the mount with butt bulb corresponds position department be equipped with butt bulb assorted spherical recess, the butt bulb with the concave surface butt of spherical recess.
Compared with the prior art, the wireless charging box provided by the invention has the following beneficial effects:
the wireless charging box provided by the invention can select the charging position according to the requirement; small-sized equipment such as a Bluetooth headset and an intelligent bracelet can be charged in the charging box, so that the loss is avoided; can be at the peripheral round of charging case for some great equipment charge, satisfy multiple demand of charging.
Drawings
Fig. 1 is a schematic structural diagram of a wireless charging box according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an internal structure of a wireless charging box according to an embodiment of the present invention;
FIG. 3 is a schematic view of the adjustment mechanism;
fig. 4 is a schematic diagram of the adjustment mechanism in cooperation with a charging coil assembly;
FIG. 5 is a simplified circuit diagram of the charging circuit and the charging coil assembly;
FIG. 6 is a schematic current diagram of a first mode of charging coil assembly;
FIG. 7 is a schematic current diagram of a second mode of charging coil assembly;
fig. 8 is a schematic view of an integrated coil.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 5, a wireless charging box according to a first embodiment of the present invention includes:
the charging device comprises a box body 1, a box cover 2, a charging coil group 3 and a charging circuit, wherein the box cover 2 covers the box body 1, a charging space 11 is formed in the box body 1, the upper end face of the box cover 2 and the outer peripheral face of the box body 1 form a charging contact face, an interlayer space 12 is formed in the side wall of the box body 1 and the bottom plate, the charging coil group 3 is arranged in the interlayer space 12, the charging circuit is electrically connected with the charging coil group 3, and the charging coil 3 forms a charging magnetic field with uniform energy density in a plurality of planes which are not parallel to each other.
Specifically, the box body 1 comprises an outer wall 13 and an inner wall 14, the outer wall 13 is fixed to the inner wall 14, the interlayer space 12 is formed between the outer wall 13 and the inner wall 14, and the charging coil 3 and the charging circuit are arranged in the interlayer space 12.
Specifically, the interlayer space 12 has a bottom space 121 and a sidewall space 122 surrounding the bottom space 121, the charging coils 3 are disposed in the bottom space 121 and the sidewall space 122, and the charging coil group 3 can at least form a charging magnetic field with uniform energy density in a plane parallel to the bottom of the case 1 and a plane parallel to the sidewall of the case 1.
Form the top open-ended in the inner wall 14 charge space 11, when less object (like bracelet, wrist-watch) need charge, can put into the object that waits to charge space 11, charging coil group 3 forms the magnetic field that charges of energy density homogeneous in a plurality of planes, right the product in the charge space 11 charges.
Specifically, case lid 2 can be established by the lid on box 1, case lid 2 has a terminal surface 21 that charges, and is preferred, the terminal surface 21 that charges is located the upper end of case lid 2, and when great object (for example cell-phone, flat board) need charge, can establish case lid 2 lid on box 1, will wait to charge the object place charge on the terminal surface 21.
Specifically, the charging coil assembly 3 includes a sidewall coil 31 and a horizontal coil 32, the sidewall coil 31 is parallel to the sidewall of the box body 1, the horizontal coil 32 is parallel to the bottom of the box body 1, and the sidewall coil 31 and the horizontal coil 32 are electrically connected to the charging circuit.
In another embodiment, the sidewall coil 31 and the horizontal coil 32 are integrated, and a litz wire sequentially passes through the sidewall space 122, so that the horizontal coil 32 parallel to the bottom of the case 1 and the sidewall coil 31 parallel to the sidewall of the case 1 are formed in the sidewall space 122.
As shown in fig. 8, a litz wire is used to form magnetic induction coils on both side walls of the case 1, respectively.
In the present embodiment, there are four side wall coils 31 and one horizontal coil 32, and the four side wall coils 31 are respectively parallel to the side walls of the box body 1 in different directions.
The four sidewall coils 31 are respectively a first sidewall coil M1, a second sidewall coil M2, a third sidewall coil M3 and a fourth sidewall coil M4, the charging circuit includes an inverter circuit 41, a first capacitor C1 and a double-pole double-throw switch S1, an output end of the inverter circuit 41 is electrically connected with one end of the first capacitor C1, the other end of the first capacitor C1 is connected with one end of a horizontal coil 32, the other end of the horizontal coil 32 is electrically connected with one end of the first sidewall coil M1, the other end of the first sidewall coil M1 is electrically connected with one end of the second sidewall coil M2, the other end of the second sidewall coil M2 is electrically connected with a second movable contact and a third movable contact of the double-pole double-throw switch S1, the first movable contact and the fourth movable contact of the double-pole double-throw switch S1 are electrically connected with a first input end and a second input end of the inverter circuit 41, one end of the third sidewall coil M3 is electrically connected with a first fixed contact of the double-pole double-throw switch S1, the other end of the third side wall coil M3 is electrically connected to one end of the fourth side wall coil M4, and the other end of the fourth side wall coil M4 is electrically connected to the second stationary contact of the double-pole double-throw switch S1.
The first sidewall coil M1, the second sidewall coil M2, the third sidewall coil M3, the fourth sidewall coil M4 have two connection modes:
in the first mode: when the double-pole double-throw switch S1 is switched to the first moving contact and the third moving contact, the first sidewall coil M1, the second sidewall coil M2, the third sidewall coil M3 and the fourth sidewall coil M4 are connected in series, and the current flow direction is as shown in fig. 6;
in the second mode: when the double pole double throw switch S1 is switched to the second moving contact and the fourth moving contact, the first sidewall coil M1, the second sidewall coil M2, the third sidewall coil M3 and the fourth sidewall coil M4 are connected in series, but the current flow directions of the third sidewall coil M3 and the fourth sidewall coil M4 are opposite to the current flow direction in the first mode, and the current flow directions are as shown in fig. 6.
In order to guarantee the charging effect, generally let the coil parallel with by the inside coil of battery charging outfit, consequently, still include adjustment mechanism 5, adjustment mechanism 5 includes mount 51 and rotation knob 52, mount 51 sets up in lateral wall space 122, mount 51 with lateral wall space 122 inner wall is articulated, rotation knob 52 wear to locate the lateral wall of box 1 and in mount 51 is fixed, lateral wall coil 31 is fixed on mount 51, rotates rotation knob 52 makes mount 51 rotates along the axis of settlement, makes lateral wall coil 31 deflects along the axis of settlement to the angle of charging of adaptation equipment.
Further, the fixing frame 51 includes an x-axis frame and a y-axis frame, the x-axis frame and the y-axis frame are vertically fixed, the rotation knob 52 includes an x-axis knob and a y-axis knob, the x-axis knob is disposed through the sidewall of the box body 1 and fixed to the x-axis frame, the y-axis knob is disposed through the sidewall of the box body 1 and fixed to the y-axis frame, and the sidewall coil 31 can rotate along the x-axis by rotating the x-axis knob; turning the y-axis knob causes the sidewall coil 31 to rotate along the y-axis.
Further, in order to avoid unnecessary shaking of the fixing frame 51 during use, the inner wall 14 is provided with the abutting ball head 141, a spherical groove 511 matched with the abutting ball head 141 is arranged at a position corresponding to the abutting ball head 141 of the fixing frame 51, the abutting ball head 141 abuts against a groove surface of the spherical groove 511, the rotation of the fixing frame 51 cannot be influenced, and the fixing frame 51 can also be provided with a certain supporting function.
During the use, will wait that the little object of charging is placed inside box 1, place great object of waiting to charge on case lid 2 or the laminating box 1 outside is placed, can be through switching first switch S1 and the series-parallel connection between the coil is adjusted to single-pole double-throw S2, changes the effect of charging, through rotating mount 51, thereby realizes lateral wall coil 31' S angular adjustment to the realization with wait the better laminating of object of charging.
Compared with the prior art, the wireless charging box provided by the invention has the following advantages and innovativeness:
compared with a wireless electric energy transmission coil with three power supplies, the wireless electric energy transmission coil only needs one transmitting circuit, and the number of the transmitting circuits is reduced;
compared with an xyz orthogonal circular coil structure, the invention is provided with a horizontal coil, so that the magnetic field inside the geometry in the box body is reasonably used;
compared with a square coil structure, the invention reduces the wire section for steering, enhances the magnetic field in the z-axis direction, adds a coil connection mode capable of enhancing the internal magnetic field and can switch between the two connection modes;
the invention designs a wireless charging box based on the coil structure, and the charging position can be selected according to requirements. Small-sized equipment such as a Bluetooth headset and an intelligent bracelet can be charged in the charging box, so that the loss is avoided; a circle of charging box can be used for charging some larger devices;
the coil rotating bracket is designed, and can be used for a wireless charging box to realize fine adjustment of the coil in the opposite direction. In actual use, the charging efficiency is improved by rotating the coil direction.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the present invention.

Claims (9)

1.一种无线充电箱,其特征在于,包括:1. A wireless charging box, characterized in that, comprising: 箱体、箱盖、充电线圈组及充电电路,所述箱盖盖设在所述箱体上,所述箱体内形成有一充电空间,所述箱盖上端面及所述箱体外周面形成充电接触面,所述箱体侧壁及底板内形成有夹层空间,所述充电线圈组、所述充电电路设置在所述夹层空间内,所述充电电路与所述充电线圈组电连接,所述充电线圈在多个互相不平行的平面内形成能量密度均一的充电磁场,所述充电磁场能够覆盖所述充电空间及所述充电接触面。A box body, a box cover, a charging coil group and a charging circuit, the box cover is arranged on the box body, a charging space is formed in the box body, and the upper end surface of the box cover and the outer peripheral surface of the box form a charging space Contact surface, an interlayer space is formed in the side wall and bottom plate of the box body, the charging coil group and the charging circuit are arranged in the interlayer space, the charging circuit is electrically connected with the charging coil group, and the charging coil group is electrically connected to the charging coil group. The charging coil forms a charging magnetic field with uniform energy density in a plurality of non-parallel planes, and the charging magnetic field can cover the charging space and the charging contact surface. 2.如权利要求1所述的一种无线充电箱,其特征在于:2. A wireless charging case as claimed in claim 1, characterized in that: 所述箱体包括外壁及内壁,所述外壁与所述内壁固定,所述外壁与所述内壁之间形成所述夹层空间,所述充电线圈及所述充电电路设置在所述夹层空间内。The box body includes an outer wall and an inner wall, the outer wall and the inner wall are fixed, the interlayer space is formed between the outer wall and the inner wall, and the charging coil and the charging circuit are arranged in the interlayer space. 3.如权利要求2所述的一种无线充电箱,其特征在于:3. A wireless charging case as claimed in claim 2, characterized in that: 所述夹层空间具有一底部空间及环绕所述底部空间的侧壁空间,所述充电线圈设置在所述底部空间及所述侧壁空间内,所述充电线圈组至少能在平行于所述箱体底部的平面以及平行于所述箱体侧壁的平面内形成能量密度均一的充电磁场。The interlayer space has a bottom space and a side wall space surrounding the bottom space, the charging coil is arranged in the bottom space and the side wall space, and the charging coil group can be at least parallel to the box. A charging magnetic field with uniform energy density is formed in the plane of the bottom of the body and the plane parallel to the side wall of the box. 4.如权利要求3所述的一种无线充电箱,其特征在于:4. A wireless charging case as claimed in claim 3, characterized in that: 所述充电线圈组包括侧壁线圈及水平线圈,所述侧壁线圈平行于所述箱体侧壁设置,所述水平线圈平行于所述箱体底部设置,所述侧壁线圈与所述水平线圈与所述充电电路电连接。The charging coil set includes a side wall coil and a horizontal coil, the side wall coil is arranged parallel to the side wall of the box body, the horizontal coil is arranged parallel to the bottom of the box body, and the side wall coil is parallel to the horizontal coil. The coil is electrically connected to the charging circuit. 5.如权利要求4所述的一种无线充电箱,其特征在于:5. A wireless charging case as claimed in claim 4, characterized in that: 所述侧壁线圈及所述水平线圈采用一体化结构,一根利兹线依次穿过所述侧壁空间,在所述侧壁空间内形成平行于所述箱体底部的所述水平线圈以及平行于所述箱体侧壁的所述侧壁线圈。The sidewall coil and the horizontal coil adopt an integrated structure, a Litz wire passes through the sidewall space in turn, and the horizontal coil and parallel coils parallel to the bottom of the box are formed in the sidewall space. the side wall coil on the side wall of the box body. 6.如权利要求5所述的一种无线充电箱,其特征在于:6. A wireless charging case as claimed in claim 5, characterized in that: 具有四个所述侧壁线圈以及一个所述水平线圈,四个所述侧壁线圈分别与所述箱体的不同方向的侧壁平行,四个所述侧壁线圈31分别为第一侧壁线圈M1、第二侧壁线圈M2、第三侧壁线圈M3、第四侧壁线圈M4,所述充电电路包括逆变电路、第一电容C1以及双刀双掷开关S1,所述逆变电路的输出端与上述第一电容C1一端电连接,所述第一电容C1另一端与水平线圈32一端连接,所述水平线圈32另一端与所述第一侧壁线圈M1一端电连接,所述第一侧壁线圈M1另一端与所述第二侧壁线圈M2一端电连接,所述第二侧壁线圈M2另一端与所述双刀双掷开关S1第二动触点、第三动触点电连接,所述双刀双掷开关S1的第一动触点、第四动触点与所述逆变电路的第一输入端、第二输入端电连接,所述第三侧壁线圈M3一端与所述双刀双掷开关S1的第一静触点电连接,所述第三侧壁线圈M3另一端与所述第四侧壁线圈M4一端电连接,所述第四侧壁线圈M4另一端与所述双刀双掷开关S1第二静触点电连接。There are four of the side wall coils and one of the horizontal coils, the four side wall coils are respectively parallel to the side walls of the box in different directions, and the four side wall coils 31 are respectively the first side wall Coil M1, second side wall coil M2, third side wall coil M3, fourth side wall coil M4, the charging circuit includes an inverter circuit, a first capacitor C1 and a double pole double throw switch S1, the inverter circuit The output end of the first capacitor C1 is electrically connected to one end of the first capacitor C1, the other end of the first capacitor C1 is connected to one end of the horizontal coil 32, and the other end of the horizontal coil 32 is electrically connected to one end of the first sidewall coil M1. The other end of the first sidewall coil M1 is electrically connected to one end of the second sidewall coil M2, and the other end of the second sidewall coil M2 is connected to the second movable contact and the third movable contact of the double pole double throw switch S1. The first and fourth movable contacts of the double-pole double-throw switch S1 are electrically connected to the first and second input ends of the inverter circuit, and the third side wall coil One end of M3 is electrically connected to the first static contact of the double pole double throw switch S1, the other end of the third side wall coil M3 is electrically connected to one end of the fourth side wall coil M4, and the fourth side wall coil M4 is electrically connected to one end. The other end of M4 is electrically connected to the second static contact of the double-pole double-throw switch S1. 7.如权利要求6所述的一种无线充电箱,其特征在于:7. A wireless charging case as claimed in claim 6, characterized in that: 还包括调节机构,所述调节机构包括固定架以及转动旋钮,所述固定架设置在所述侧壁空间内,所述固定架与所述侧壁空间内壁铰接,所述转动旋钮穿设于所述箱体的侧壁并于所述固定架固定,所述侧壁线圈固定在所述固定架上,转动所述转动旋钮,使所述固定架沿设定的轴线转动,使所述侧壁线圈沿设定轴线偏转,以适应设备的充电角度。It also includes an adjustment mechanism, the adjustment mechanism includes a fixing frame and a rotating knob, the fixing frame is arranged in the side wall space, the fixing frame is hinged with the inner wall of the side wall space, and the rotating knob is passed through the The side wall of the box body is fixed on the fixing frame, the side wall coil is fixed on the fixing frame, and the rotating knob is rotated to make the fixing frame rotate along the set axis, so that the side wall is rotated. The coil is deflected along a set axis to suit the charging angle of the device. 8.如权利要求7所述的一种无线充电箱,其特征在于:8. A wireless charging case as claimed in claim 7, characterized in that: 所述固定架包括x轴骨架以及y轴骨架,所述x轴骨架与所述y轴骨架垂直固定,所述转动旋钮包括x轴旋钮以及y轴旋钮,所述x轴旋钮穿设于所述箱体的侧壁并于所述x轴骨架固定,所述y轴旋钮穿设于所述箱体的侧壁并于所述y轴骨架固定,转动所述x轴旋钮能使所述侧壁线圈沿x轴转动;转动所述y轴旋钮能使所述侧壁线圈沿y轴转动。The fixing frame includes an x-axis skeleton and a y-axis skeleton, the x-axis skeleton and the y-axis skeleton are vertically fixed, and the rotating knob includes an x-axis knob and a y-axis knob, and the x-axis knob passes through the The side wall of the box body is fixed to the x-axis frame, the y-axis knob is penetrated through the side wall of the box body and is fixed to the y-axis frame, and rotating the x-axis knob can make the side wall The coil rotates along the x-axis; turning the y-axis knob enables the sidewall coil to rotate along the y-axis. 9.如权利要求8所述的一种无线充电箱,其特征在于:9. A wireless charging case as claimed in claim 8, characterized in that: 所述内壁上设置有抵接球头,所述固定架与所述抵接球头对应位置处设有与所述抵接球头相匹配的球形凹槽,所述抵接球头与所述球形凹槽的凹槽面抵接。The inner wall is provided with an abutment ball head, and a spherical groove matching the abutment ball head is provided at the corresponding position of the fixing frame and the abutment ball head, and the abutment ball head is connected to the abutment ball head. The groove surface of the spherical groove abuts.
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