CN111614168B - Wireless power supply device and electrical equipment - Google Patents
Wireless power supply device and electrical equipment Download PDFInfo
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- CN111614168B CN111614168B CN201910143808.8A CN201910143808A CN111614168B CN 111614168 B CN111614168 B CN 111614168B CN 201910143808 A CN201910143808 A CN 201910143808A CN 111614168 B CN111614168 B CN 111614168B
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- 238000004804 winding Methods 0.000 claims description 99
- 230000007246 mechanism Effects 0.000 claims description 24
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 230000004323 axial length Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
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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
Disclosed are a wireless power supply device and an electrical device, wherein the wireless power supply device (100) of the electrical device comprises: -a first module (10), the first module (10) comprising: a first housing (13), and a first coil assembly, the first coil assembly being enclosed in the first housing (13); and a second module (20), the second module (20) comprising: a second housing (23), and a second coil assembly, the second coil assembly being enclosed in the second housing (23); wherein the first module (10) is formed with a receiving portion (30, 30 '), and the second module (20) is rotatably mounted within the receiving portion (30, 30') such that the second coil assembly is electromagnetically coupled with the first coil assembly. The wireless power supply device reduces the complexity of assembly and disassembly.
Description
Technical Field
Embodiments of the present disclosure relate to a wireless power supply device, and more particularly, to a wireless power supply device and an electrical apparatus having the same.
Background
In the household appliance, the body and the cover are usually two separate components, and since the cover is mostly integrated with functions such as display and control, it is necessary to transmit electric current from the body to the cover. The existing wireless power supply device generally adopts a mode that one cylindrical hollow coil is embedded with the other cylindrical solid coil, and has simple structure and higher coupling degree between the two coils. However, this structure is difficult to mount and dismount, and it is necessary to reserve a sufficient space in the axial direction of the coil for mounting and dismounting.
Disclosure of Invention
The present disclosure is directed to solving at least one of the above-mentioned problems and disadvantages of the prior art.
According to an embodiment of one aspect of the present disclosure, there is provided a wireless power supply apparatus including:
a first module, the first module comprising:
a first housing, and
a first coil assembly enclosed in the first housing; and
a second module, the second module comprising:
a second housing, and
a second coil assembly encapsulated in the second housing;
wherein the first module is formed with a receiving portion, and the second module is rotatably installed in the receiving portion such that the second coil assembly is electromagnetically coupled with the first coil assembly.
According to one embodiment of the present disclosure, one of the first module and the second module functions as a transmitting module, and the other of the first module and the second module functions as a receiving module.
According to a wireless power supply of an embodiment of the present disclosure, the first coil assembly includes:
a first magnetic core formed as a support structure having an arc-shaped radial cross section, the interior of the support structure forming the accommodation portion; and
and a first coil winding provided on an inner surface of the first magnetic core, the first coil winding having a winding shape of a rectangle in an expanded state.
According to the wireless power supply device of the embodiment of the disclosure, the central angle corresponding to the arc is alpha, wherein 180 degrees is less than alpha less than 360 degrees.
According to a wireless power supply of an embodiment of the present disclosure, the second coil assembly includes:
the second magnetic core is in a cylindrical structure and is rotatably arranged inside the supporting structure, and the cylindrical structure and the supporting structure are coaxially arranged; and
and a second coil winding provided on an outer side surface of the second magnetic core, the second coil winding having a winding shape of a rectangle in an expanded state.
According to the wireless power supply device of one embodiment of the present disclosure, when the second module is used as a receiving module, the second coil winding includes a plurality of sub-coil windings, the plurality of sub-coil windings are distributed at intervals along the circumferential direction of the second magnetic core, and the plurality of sub-coil windings are distributed at intervals along the axial direction of the second magnetic core.
According to one embodiment of the present disclosure, the plurality of sub-coil windings are electrically connected to each other.
According to the wireless power supply device of one embodiment of the present disclosure, the plurality of sub-coil windings are respectively connected with the output circuit through the change-over switch, so as to connect the sub-coil winding having the largest current among the plurality of sub-coil windings with the output circuit.
According to one embodiment of the disclosure, the first module further includes a first mounting mechanism, and the first mounting mechanism is fixed on the first housing.
According to one embodiment of the present disclosure, the first mounting mechanism includes a connection plate that extends in a plane parallel to an axis of the first magnetic core.
According to a wireless power supply of an embodiment of the present disclosure, the first coil assembly includes:
a first magnetic core including a first winding portion and a second winding portion arranged at intervals, a gap between the first winding portion and the second winding portion forming the accommodating portion;
a first coil sub-winding wound on the first winding portion; and
and a second coil sub-winding wound on the second winding part, and the first and second coil sub-windings are electrically connected to each other.
According to the wireless power supply device of the embodiment of the disclosure, the first winding part and the second winding part are cylindrical, and the first winding part and the second winding part are coaxially arranged.
According to a wireless power supply of an embodiment of the present disclosure, the second coil assembly includes:
the second magnetic core is cylindrical and is coaxially arranged with the first magnetic core;
and a second coil winding wound on the second magnetic core.
According to a wireless power supply of an embodiment of the present disclosure, the first housing includes:
a first housing portion configured to encapsulate the first winding and the first coil sub-winding: and
A second housing portion configured to encase the second winding and the second coil sub-winding.
According to a wireless power supply of an embodiment of the present disclosure, the first module further includes a first mounting mechanism including:
a first connection portion protruding outwardly from a surface of the first housing portion;
a second connecting portion protruding outwardly from a surface of the second housing portion; and
and first fixing parts respectively fixed to one end of the first connecting part away from the first housing part and one end of the second connecting part away from the second housing part.
According to an embodiment of the present disclosure, the second module further includes:
a second mounting mechanism secured to the second housing.
According to a wireless power supply device of an embodiment of the present disclosure, the second mounting mechanism includes:
a third connecting portion protruding outward from a surface of the second housing; and
and a second fixing portion fixed to an end of the third connecting portion remote from the second housing.
According to an embodiment of another aspect of the present disclosure, there is also provided an electrical apparatus including:
a body;
the cover body is pivotally mounted on the machine body; and
according to the wireless power supply device described above, the first module is mounted on one of the body and the cover, and the second module is mounted on the other of the body and the cover.
According to an embodiment of the present disclosure, the first module is mounted on the body, the second module is mounted on the cover, and the cover is pivotably connected with the body by the second module of the wireless power supply being rotatably mounted in the first module.
According to an embodiment of the present disclosure, the pivot axis of the cover is located at an edge of the electrical device.
According to an embodiment of the present disclosure, when the wireless power supply device is the wireless power supply device described above, the pivot axis of the cover is located in the middle of the electrical device.
According to the wireless power supply apparatus of the various embodiments of the present disclosure, the wireless power supply apparatus of an electrical device, which is capable of easily mounting the second module in the housing of the first module by forming the first module with the housing, and rotating with respect to the first module, so that the second coil assembly of the second module is electromagnetically coupled with the first coil assembly of the first module, thereby realizing power supply in a wireless manner, thus reducing the complexity of assembling and disassembling the wireless power supply apparatus.
Drawings
Other objects and advantages of the present disclosure will become apparent and a thorough understanding of the present disclosure will be facilitated by reference to the following description of the present disclosure, wherein:
fig. 1 is a schematic perspective view of a wireless power supply according to an exemplary embodiment of the present disclosure;
FIG. 2 is an exploded schematic view of the wireless power supply device shown in FIG. 1;
fig. 3 is a schematic perspective view of a wireless power supply according to another exemplary embodiment of the present disclosure;
FIG. 4 is a schematic perspective view of a tub dishwasher according to an exemplary embodiment of the present disclosure;
FIG. 5 is an enlarged view of a portion of the tub dishwasher of FIG. 4;
FIG. 6 is a schematic view of the mounting of the body and first module of the tub dishwasher of FIG. 4;
FIG. 7 is an enlarged view of a portion of the body and first module of the tub dishwasher of FIG. 6;
FIG. 8 is a schematic view of the installation of the cover and the second module of the tub dishwasher of FIG. 6;
FIG. 9 is an enlarged view of a portion of the cover and second module of the tub dishwasher of FIG. 8;
fig. 10 is a perspective view of a wireless power supply according to yet another exemplary embodiment of the present disclosure;
FIG. 11 is a schematic perspective view of a tub dishwasher according to another exemplary embodiment of the present disclosure;
FIG. 12 is an enlarged view of a portion of the tub dishwasher of FIG. 11;
FIG. 13 is a schematic view of the mounting of the body and first module of the tub dishwasher of FIG. 11;
FIG. 14 is an enlarged view of a portion of the body and first module of the tub dishwasher of FIG. 13;
FIG. 15 is a schematic view of the installation of the cover and the second module of the tub dishwasher of FIG. 11;
FIG. 16 is an enlarged view of a portion of the cover and second module of the tub dishwasher of FIG. 15; and
fig. 17 is another installation schematic of a wireless power supply according to an exemplary embodiment of the present disclosure.
Detailed Description
While the present disclosure will be fully described with reference to the accompanying drawings, which contain preferred embodiments of the present disclosure, it is to be understood before this description that one of ordinary skill in the art can modify the invention described herein while achieving the technical effects of the present disclosure. Accordingly, it is to be understood that the foregoing description is a broad disclosure by those having ordinary skill in the art, and is not intended to limit the exemplary embodiments described in the present disclosure.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in the drawings in order to simplify the drawings.
According to one general technical concept of the present disclosure, there is provided a wireless power supply apparatus including: a first module, the first module comprising: a first housing, and a first coil assembly, the first coil assembly being enclosed in the first housing; and a second module, the second module comprising: a second housing, and a second coil assembly, the second coil assembly being enclosed in the second housing; wherein the first module is formed with a receiving portion, and the second module is rotatably installed in the receiving portion such that the second coil assembly is electromagnetically coupled with the first coil assembly.
According to another general technical concept of the present disclosure, there is provided an electrical apparatus including: a body; the cover body is pivotally mounted on the machine body; and the wireless power supply device is characterized in that the first module is arranged on one of the machine body and the cover body, and the second module is arranged on the other of the machine body and the cover body.
Electrical appliances, such as sink-type dishwashers, typically comprise a housing, a cover and a wireless power supply. The cover is pivotally mounted on the body. The wireless power supply device comprises a transmitting module and a receiving module which are respectively arranged on the machine body and the cover body, wherein a cable of a coil assembly of the transmitting module is connected with a main control system in the machine body of the electric equipment, and a cable of a coil assembly of the receiving module is connected to a display screen, an operation switch or a button and other power utilization devices on the cover body of the electric equipment. When the cover body is opened or closed, current is generated through electromagnetic coupling of the coil assembly of the transmitting module and the coil assembly of the receiving module, so that the current is transmitted to the cover body in a wireless mode, and the current is provided for an electric device on the cover body.
Fig. 1 is a perspective schematic view of a wireless power supply 100 according to an exemplary embodiment of the present disclosure; and fig. 2 is an exploded schematic view of the wireless power supply device 100 shown in fig. 1.
As shown in fig. 1 and 2, in the illustrated embodiment, the wireless power supply 100 includes a first module 10 and a second module 20. The first module 10 comprises a first housing 13 and a first coil assembly, which is enclosed in the first housing 13. The second module 20 includes a second housing 23 and a second coil assembly, which is enclosed in the second housing 23. Wherein the first module 10 is formed with a receiving portion 30, and the second module 20 is rotatably installed in the receiving portion 30, so that the second coil assembly of the second module 20 is electromagnetically coupled with the first coil assembly of the first module 10 to supply power to the electric device in a wireless manner.
However, it should be noted that those skilled in the art will understand that both the first module 10 and the second module 20 may be used as a transmitting module or a receiving module. For example, when the first module 10 is used as a transmitting module, the second module 20 is used as a receiving module; when the first module 10 is used as a receiving module, the second module 20 is used as a transmitting module.
As shown in fig. 1 and 2, in the illustrated embodiment, the first coil assembly comprises a first magnetic core 11, for example made of ferrite magnetic sheet, and a first coil winding 12. The first magnetic core 11 is formed as a support structure having an arc-shaped radial cross section, and the interior of the support structure forms the receiving portion 30. The first coil winding 12 is provided on the inner surface of the first magnetic core 11, and the wound shape of the first coil winding 12 is rectangular in an expanded state. Furthermore, the central angle corresponding to the first coil winding 12 does not exceed the central angle corresponding to the first magnetic core 11.
As shown in fig. 1 and 2, in the illustrated embodiment, the arc has a central angle d, where 180 ° < α < 360 °, in which case, when the first module 10 and the second module 20 of the wireless power supply apparatus 100 are mounted on the body 41 and the cover 42 of the electric device, respectively, the wireless power supply apparatus 100 may serve as a hinge shaft of the cover 42, where the second module 20 serves as a shaft core of the hinge shaft, and the first module 10 serves as a shaft sleeve of the hinge shaft. However, it should be noted that, in other embodiments of the present disclosure, α may be other values, such as 150 °, 120 °, and so on, as will be understood by those skilled in the art.
As shown in fig. 1 and 2, in the illustrated embodiment, the second coil assembly includes a second magnetic core 21 made of ferrite magnetic sheets, for example, and a second coil assembly 22, the second magnetic core 21 having a cylindrical structure and rotatably mounted inside a support structure, the cylindrical structure being disposed coaxially with the support structure; the second coil winding 22 is provided on the outer side surface of the second magnetic core 21, and the winding shape of the second coil winding 22 is rectangular in the expanded state. The central angle corresponding to the second coil winding 22 is typically less than 180 °.
Fig. 3 is a perspective view of a wireless power supply apparatus 100 according to another exemplary embodiment of the present disclosure.
As shown in fig. 3, in the illustrated embodiment, when the second module 20 is used as a receiving module, the second coil winding 22 includes a plurality of sub-coil windings 22A, 22B, 22C, the plurality of sub-coil windings 22A, 22B, 22C are spaced apart along the circumferential direction of the second magnetic core 21, and the plurality of sub-coil windings 22A, 22B, 22C are spaced apart along the axial direction of the second magnetic core 21.
As shown in fig. 3, in the illustrated embodiment, the plurality of sub-coil windings 22A, 22B, 22C are respectively connected to the output circuit by a change-over switch to connect the sub-coil winding having the largest current among the plurality of sub-coil windings 22A, 22B, 22C to the output circuit to supply power to the load, and intermittent power supply at 360 ° rotation of the receiving coil with respect to the transmitting coil can be achieved.
However, it should be understood by those skilled in the art that in other embodiments of the present disclosure, the plurality of sub-coil windings 22A, 22B, 22C may also be electrically connected to one another.
FIG. 4 is a schematic perspective view of a tub dishwasher according to an exemplary embodiment of the present disclosure; FIG. 5 is an enlarged view of a portion of the tub dishwasher of FIG. 4; FIG. 6 is a schematic view of the mounting of the body 41 and the first module 10 of the tub dishwasher of FIG. 4; FIG. 7 is an enlarged view of a portion of the body 41 and the first module 10 of the tub dishwasher of FIG. 6; FIG. 8 is a schematic view of the installation of the cover 42 and the second module 20 of the tub dishwasher of FIG. 6; and FIG. 9 is an enlarged view of a portion of the cover 42 and the second module 20 of the sink dishwasher of FIG. 8.
As shown in fig. 4-7, in the illustrated embodiment, the first module 10 further includes a first mounting mechanism 14, the first mounting mechanism 14 being secured to the first housing 13. The first module 10 can thus be mounted on the tub dishwasher body 41 by means of the first mounting mechanism 14.
As shown in fig. 4 to 7, in the illustrated embodiment, the first mounting mechanism 14 includes a connection plate that extends in a plane parallel to the axis of the first magnetic core 11. The connection plate may be fixed to the body 41 by a screw 50 passing through a through hole thereof.
It should be noted that, in other embodiments of the present disclosure, the first module 10 may be fastened to the body 41 or the cover 42 of the tub dishwasher by other means, such as a snap fit, adhesive, etc.
As shown in fig. 4, 5, 8 and 9, in the illustrated embodiment, the second module 20 further includes a second mounting mechanism 24, the second mounting mechanism 24 being secured to the second housing 23.
As shown in fig. 4, 5, 8 and 9, in the illustrated embodiment, the second mounting mechanism 24 includes a plate-shaped third connecting portion 241 and a plate-shaped second fixing portion 242, the third connecting portion 241 protruding outward from the surface of the second housing 23; the second fixing portion 242 is fixed to an end of the third connecting portion 241 remote from the second housing 23. The second fixing portion 242 may be fixed to the cover 42 by a through hole through which the screw 50 passes.
It should be noted that, in other embodiments of the present disclosure, the second module 20 may be fastened to the body 41 or the cover 42 of the tub dishwasher by other means, such as a snap fit, adhesive, etc.
In addition, the wireless power supply device 100 in the embodiment shown in fig. 10 and 11 may also be used as the hinge shaft of the cover 42, in which case, for example, both ends of the second module 20 may be formed with a cylindrical coupling groove, respectively, and one end of the first module 10 near the second module 20 is provided with a coupling portion inserted into the coupling groove and rotatable with respect to the coupling groove. That is, the second module 20 serves as a shaft core of the hinge shaft, and the first module 10 serves as a shaft sleeve of the hinge shaft.
Fig. 10 is a perspective view of a wireless power supply apparatus 100 according to still another exemplary embodiment of the present disclosure.
As shown in fig. 10, in the illustrated embodiment, the first coil assembly includes a first magnetic core 11, a first coil sub-winding 12A, and a second coil sub-winding 12B, which are made of ferrite magnetic sheets, for example, the first magnetic core 11 includes a first winding portion 11A and a second winding portion 11B that are disposed at intervals, and a receiving portion 30 'is formed between the first winding portion 11A and the second winding portion 11B, that is, a gap between the first winding portion 11A and the second winding portion 11B forms the receiving portion 30'; the first coil sub-winding 12A is wound on the first winding portion 11A; the second coil sub-winding 12B is wound on the second winding portion 11B, and the winding directions of the first coil sub-winding 12A and the second coil sub-winding 12B are the same and electrically connected to each other so that the flowing directions of the currents in the first coil sub-winding 12A and the second coil sub-winding 12B are uniform. Thus, when the second module 20 rotates relative to the first module 10, the second coil assembly of the second module 20 electromagnetically couples with the first coil assembly of the first module 10 to enable power to be wirelessly supplied to the powered device.
In one embodiment, the first coil sub-winding 12A and the second coil sub-winding 12B may be wound from a single wire (e.g., an enamel wire). The first coil sub-winding 12A and the second coil sub-winding 12B may be formed by winding two independent wires, and then connecting the first coil sub-winding 12A and the second coil sub-winding 12B in series with one wire.
As shown in fig. 10, in the illustrated embodiment, the first winding portion 11A and the second winding portion 11B each have a cylindrical shape, and the first winding portion 11A and the second winding portion 11B are coaxially disposed. The first winding portion 11A and the second winding portion 11B are equal in both diameter and axial length. The outer diameters and axial lengths of the first coil sub-winding 12A and the second coil sub-winding 12B are equal.
As shown in fig. 10, in the illustrated embodiment, the second coil assembly includes a second magnetic core 21 and a second coil winding 22, which are made of ferrite magnetic sheets, for example. The second magnetic core 21 has a columnar shape, and the second magnetic core 21 is disposed coaxially with the first magnetic core 11. The second coil winding 22 is wound on the second magnetic core 21.
FIG. 11 is a schematic perspective view of a tub dishwasher according to another exemplary embodiment of the present disclosure; FIG. 12 is an enlarged view of a portion of the tub dishwasher of FIG. 11; FIG. 13 is a schematic view of the mounting of the body 41 and the first module 10 of the tub dishwasher of FIG. 11; FIG. 14 is an enlarged view of a portion of the body 41 and the first module 10 of the tub dishwasher shown in FIG. 13; FIG. 15 is a schematic view of the installation of the cover 42 and the second module 20 of the sink dishwasher of FIG. 11; FIG. 16 is an enlarged view of a portion of the cover 42 and the second module 20 of the tub dishwasher of FIG. 15; and fig. 17 is another installation schematic of the wireless power supply apparatus 100 according to an exemplary embodiment of the present disclosure.
As shown in fig. 14, in the illustrated embodiment, the first housing 13 includes a first housing portion 13A and a second housing portion 13B, the first housing portion 13A being configured to encapsulate the first wound portion 11A and the first coil sub-winding 12A; the second housing portion 13B is configured to encapsulate the second winding portion 11B and the second coil sub-winding 12B.
As shown in fig. 11 to 14, in the illustrated embodiment, the first module 10 further includes a first mounting mechanism 14, the first mounting mechanism 14 including a first connecting portion 141A, a second connecting portion 141B, and a first fixing portion 142, the first connecting portion 141A protruding outward from a surface of the first housing portion 13A; the second connecting portion 141B protrudes outward from the surface of the second housing portion 13B; the first fixing portions 142 are fixed to an end of the first connecting portion 141A remote from the first housing portion 13A and an end of the second connecting portion 141B remote from the second housing portion 13B, respectively. The first fixing portion 142 may be fixed to the body 41 by a screw passing through a through hole thereof.
It should be noted that, in other embodiments of the present disclosure, the first module 10 may be fastened to the body 41 or the cover 42 of the tub dishwasher by other means, such as a snap fit, adhesive, etc.
As shown in fig. 11, 12, 15 and 16, in the illustrated embodiment, the second module 20 further includes a second mounting mechanism 24, the second mounting mechanism 24 being secured to the second housing 23.
As shown in fig. 16, in the illustrated embodiment, the second mounting mechanism 24 includes a plate-shaped third connecting portion 241 protruding outward from the surface of the second housing 23, and a plate-shaped second fixing portion 242, the second fixing portion 242 being fixed to an end of the third connecting portion 241 remote from the second housing 23. The second fixing portion 242 may be fixed to the cover 42 by a screw passing through a through hole thereof.
It should be noted that, in other embodiments of the present disclosure, the second module 20 may be fastened to the body 41 or the cover 42 of the tub dishwasher by other means, such as a snap fit, adhesive, etc.
As shown in fig. 4 and 11, in the illustrated embodiment, the wireless power supply 100 is mounted at the edge of the tub dishwasher. However, it should be appreciated by those skilled in the art that in other embodiments of the present disclosure, as shown in FIG. 17, the wireless power unit 100 may also be mounted in the middle of a tub dishwasher, which may be particularly useful where some of the power devices are located in the middle of the tub dishwasher, thereby shortening the length of the cable used to connect the power devices to the wireless power unit.
According to another aspect of the present disclosure, there is also provided an electrical apparatus including a body 41 and a cover 42, as shown in fig. 4 and 11, the cover 42 being pivotably mounted on the body 41. The electrical apparatus further comprises a wireless power supply device 100, the wireless power supply device 100 comprising a first module 10 mounted on the body 41 and a second module 20 mounted on the cover 42. The first module 10 comprises a first housing 13 and a first coil assembly, which is enclosed in the first housing 13. The second module 20 includes a second housing 23 and a second coil assembly, which is enclosed in the second housing 23. Wherein the first module 10 is formed with a receiving part 30, 30', the second module 20 is rotatably installed in the receiving part 30, 30', the first module 10 is maintained during the opening or closing of the cover 42, the second module 20 rotates relative to the first module 10, the second coil assembly of the second module 20 is electromagnetically coupled with the first coil assembly of the first module 10, and an internal current is transmitted from the first coil assembly of the first module 10 to the second coil assembly of the second module 20 in a wireless manner, thereby providing a current to the power consuming device on the cover 42 of the tub dishwasher.
As shown in fig. 4 and 11, the electrical appliance is a tub dishwasher, however, it should be understood by those skilled in the art that in other embodiments of the present disclosure, the electrical appliance may be a counter dishwasher, a single-piece kitchen dishwasher, a microwave oven, or the like. Furthermore, in other embodiments of the present disclosure, the first module 10 may also be mounted on the cover 42, while the second module 20 is mounted on the body 41.
As shown in fig. 4 and 5, in the illustrated embodiment, the first module 10 is mounted on the body 41, the second module 20 is mounted on the cover 42, and the cover 42 is pivotably connected to the body 41 by the second module 20 of the wireless power supply device 100 being rotatably mounted in the first module 10. That is, the wireless power supply device 100 may be used as a hinge shaft of the cover 42, wherein the second module 20 serves as a shaft core of the hinge shaft and the first module 10 serves as a shaft sleeve of the hinge shaft.
In an embodiment not shown in the present disclosure,
as shown in fig. 4 and 11, in the illustrated embodiment, the pivot axis of the cover 42 is located at the edge of the tub dishwasher.
As shown in fig. 17, in the illustrated embodiment, the pivot axis of the cover 42 is located in the middle of the tub dishwasher. This is particularly useful in the case where some of the electrical devices are located in the middle of the sink dishwasher, thereby shortening the length of the cable used to connect between the electrical devices and the wireless power supply.
According to the wireless power supply apparatus of the various embodiments of the present disclosure, the wireless power supply apparatus of an electrical device, which is capable of easily mounting the second module in the housing of the first module by forming the first module with the housing, and rotating with respect to the first module, so that the second coil assembly of the second module is electromagnetically coupled with the first coil assembly of the first module, thereby realizing power supply in a wireless manner, thus reducing the complexity of assembling and disassembling the wireless power supply apparatus.
Those skilled in the art will appreciate that the embodiments described above are exemplary and that modifications may be made by those skilled in the art, and that the structures described in the various embodiments may be freely combined without conflict in terms of structure or principle.
Having described the preferred embodiments of the present disclosure in detail, those skilled in the art will readily appreciate that various changes and modifications may be made without departing from the scope and spirit of the following claims, and that the present disclosure is not limited to the implementations of the exemplary embodiments set forth in the specification.
Claims (16)
1. A wireless power supply apparatus (100), comprising:
-a first module (10), the first module (10) comprising:
a first housing (13), and
-a first coil assembly, which is enclosed in the first housing (13); and
-a second module (20), the second module (20) comprising:
a second housing (23), and
-a second coil assembly, which is enclosed in the second housing (23);
wherein the first module (10) is formed with a receiving portion (30), the second module (20) is rotatably mounted within the receiving portion (30) such that the second coil assembly is electromagnetically coupled with the first coil assembly,
the first coil assembly includes:
a first magnetic core (11), wherein the first magnetic core (11) is formed into a cylindrical supporting structure with an arc-shaped radial cross section and an open side surface, and the accommodating part (30) is formed inside the supporting structure; and
a first coil winding (12), the first coil winding (12) being arranged on the inner surface of the first magnetic core (11), and
the second coil assembly includes:
a second magnetic core (21), the second magnetic core (21) having a cylindrical structure and being rotatably mounted inside the receiving portion (30) of the supporting structure, the cylindrical structure being disposed coaxially with the supporting structure; and
-a second coil winding (22), the second coil winding (22) being arranged on an outer side surface of the second magnetic core (21) facing an inner surface of the first magnetic core (11).
2. The wireless power supply device according to claim 1, wherein one of the first module (10) and the second module (20) functions as a transmitting module and the other of the first module (10) and the second module (20) functions as a receiving module.
3. The wireless power supply device according to claim 1 or 2, wherein the wound shape of the first coil winding (12) is rectangular in an expanded state.
4. A wireless power supply according to claim 3 wherein the arc corresponds to a central angle α, wherein 180 ° < α < 360 °.
5. A wireless power supply device according to claim 3, wherein the wound shape of the second coil winding (22) is rectangular in an expanded state.
6. The wireless power supply device according to claim 5, wherein when the second module is used as a receiving module, the second coil winding (22) includes a plurality of sub-coil windings (22A, 22B, 22C), the plurality of sub-coil windings (22A, 22B, 22C) are distributed at intervals along a circumferential direction of the second magnetic core (21), and the plurality of sub-coil windings (22A, 22B, 22C) are distributed at intervals along an axial direction of the second magnetic core (21).
7. The wireless power supply device of claim 6 wherein said plurality of sub-coil windings (22A, 22B, 22C) are electrically connected to each other.
8. The wireless power supply device according to claim 6, wherein the plurality of sub-coil windings (22A, 22B, 22C) are connected to the output circuit by a change-over switch, respectively, to connect a sub-coil winding having the largest current among the plurality of sub-coil windings (22A, 22B, 22C) to the output circuit.
9. The wireless power supply device according to any of claims 4-8, wherein the first module further comprises a first mounting mechanism (14), the first mounting mechanism (14) being fixed on the first housing (13).
10. The wireless power supply device according to claim 9, wherein the first mounting mechanism (14) comprises a connection plate extending in a plane parallel to the axis of the first magnetic core (11).
11. The wireless power supply of any of claims 1-2, 4-8, and 10 wherein the second module (20) further comprises:
-a second mounting mechanism (24), said second mounting mechanism (24) being fixed to said second housing (23).
12. The wireless power supply device of claim 11 wherein the second mounting mechanism (24) comprises:
a third connecting portion (241), the third connecting portion (241) protruding outward from a surface of the second housing (23); and
a second fixing portion (242), the second fixing portion (242) being fixed to an end of the third connecting portion (241) remote from the second housing (23).
13. An electrical device, comprising:
a body (41);
a cover (42), the cover (42) being pivotally mounted on the body (41); and
the wireless power supply device (100) according to any one of claims 1-12, the first module (10) being mounted on one of the body (41) and the cover (42), the second module (20) being mounted on the other of the body (41) and the cover (42) such that the wireless power supply device acts as a hinge shaft of the cover, the second module acting as a shaft core of the hinge shaft, the first module acting as a sleeve of the hinge shaft.
14. The electrical device according to claim 13, wherein the first module (10) is mounted on the body (41), the second module (20) is mounted on the cover (42), the cover (42) being pivotably connected with the body (41) by the second module (20) of the wireless power supply means (100) being rotatably mounted in the first module (10).
15. The electrical device of claim 13, wherein the pivot axis of the cover (42) is located at an edge of the electrical device.
16. The electrical device according to claim 13, wherein when the wireless power supply (100) is a wireless power supply (100) according to any one of claims 11-12, the pivot axis of the cover (42) is located in the middle of the electrical device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910143808.8A CN111614168B (en) | 2019-02-26 | 2019-02-26 | Wireless power supply device and electrical equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910143808.8A CN111614168B (en) | 2019-02-26 | 2019-02-26 | Wireless power supply device and electrical equipment |
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| CN111614168B true CN111614168B (en) | 2024-03-15 |
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| US6945614B2 (en) * | 2002-06-12 | 2005-09-20 | Maytag Corporation | Dishwasher door hinge positioning means and method |
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