System for wireless power transmission and electrical system

Abstract

The utility model relates to a system for wireless power transmission and an electric appliance system. The system has a transmitter unit on one side of the panel and is provided with a primary coil for receiving an alternating current such that the primary coil emits a magnetic field, and the system has a receiver unit on an opposite side of the panel and is provided with a secondary coil generating an alternating current when the secondary coil is subjected to the magnetic field. The system has a positioning system provided with guiding means on either the transmitter unit or the receiver unit and with a positioner on the other corresponding unit, whereby when a user installs the system, the user can use the positioner to check the position of the guiding means on the other side of the panel, and aligning the transmitter unit and the receiver unit.

Description

TECHNICAL FIELD

[0001] The present utility relates to a system for wireless transmission of power and an appliance system. For example, certain aspects of the present utility are particularly directed to a system for wireless transmission of power on a glass window panel or a dividing screen or panel of a residence and / or a system that facilitates installation thereof. BACKGROUND

[0002] Different specialized appliances are used in conjunction with a house. For example, in a typical residence, many users will install various appliances on the exterior of the house, such as a doorbell, a surveillance camera, a floodlight, an insect repeller, a lighting system, a security alarm, etc., which often require power to operate. To address the need for power, some of these appliances are designed to be powered by a direct current battery. However, battery power is not a reliable source of power as battery power typically does not last for a long time. When the battery power is depleted, the appliance will stop functioning. In an outdoor environment, the battery is also prone to degrade relatively quickly, which is inconvenient and, in the case of a surveillance alarm, for example, an inoperable security system poses a safety risk to the tenants of the residence.

[0003] To address the need for providing a constant source of power without relying on a direct current battery, it is proposed to utilize a solar power system to generate and supply power to such appliances. While the use of a solar power system can provide power at a lower cost, the solar power system is often limited in many situations. For example, a solar power system cannot operate in a shaded area or where sunlight is insufficient. In addition, a reliable solar power system requires a solar panel of a sufficiently large size, but the environment of the location of the residence can not allow for the installation of such a sufficiently large solar panel.

[0004] Another approach to address the need for providing a constant source of power without relying on a direct current battery or a solar power system is to install a power outlet at the exterior location of the residence where the appliance is installed. However, this is often complex or impractical as the cost and complexity of hiring an electrician to perform the related electrical work is prohibitive if / when multiple appliances along the perimeter are installed at the perimeter or various exterior locations of the residence.

[0005] It is conceivable that another approach to address the need for providing a constant source of power without relying on a direct current battery or a solar power system or hiring an electrician to install a large number of outdoor AC power outlets is for a non-expert tenant of the residence to drill holes or mechanically open up passages at different locations of the walls of the residence and install electrical extension cords from a nearby indoor power outlet to the outdoor location through the drilled holes. However, this approach can be far from a practical or reasonable solution. Partly because drilling holes or opening up passages at the walls of the residence can lead to unexpected complications, such as interference with utilities at the walls, which can be beyond the capability of a non-expert user. In addition, such a modification work can not be in compliance with building codes / regulations if implemented haphazardly.

[0006] The utility model aims at solving the above problems, or at least provides an alternative for the public. Utility model content

[0007] According to the first aspect of the utility model, a system for wireless power transmission from one side of a transparent or translucent panel to the opposite side of the panel is provided, comprising i) a transmitter unit mountable on one side of the panel, wherein the transmitter unit comprises a primary coil for receiving alternating current such that the primary coil emits a magnetic field; and ii) a receiver unit mountable on the opposite side of the panel, wherein the receiver unit comprises a secondary coil that generates alternating current when subjected to a magnetic field from the primary coil, wherein the transmitter unit is provided with a first cable, one end of which is connectable to a power outlet to receive alternating current from the power outlet, the receiver unit comprises a second converter for converting the alternating current generated by the secondary coil into direct current to be supplied to an electrical appliance mountable or installed in the vicinity of the receiver unit, and wherein the system comprises a positioning system provided with a guide on the transmitter unit or the receiver unit and a positioner on the other respective unit, whereby when a user installs the system, the user is able to use the positioner to check the position of the guide on the panel and align the transmitter unit and the receiver unit such that the secondary coil is maximally exposed to the magnetic field.

[0008] Preferably, the panel can be planar and non-metallic, and / or the thickness of the panel can be up to 40 mm, preferably up to 30 mm, more preferably up to 20 mm.

[0009] Suitably, the system can comprise a transformer for reducing the voltage of the alternating current input from the power outlet from 110V to 240V to 5V to 24V to generate voltage-reduced alternating current to be supplied to the primary coil, wherein the transformer can be located at one end of the cable. The system can comprise a first converter for raising the frequency of the alternating current input from the power outlet from 50Hz to 60Hz to 50kHz to 300kHz to generate frequency-raised current to be supplied to the primary coil. In one embodiment, the raised frequency can be 105kHz to 210kHz. The exact raised frequency depends on the requirements of the electrical appliance receiving the alternating current.

[0010] Advantageously, the system can comprise a controller limiting the output voltage and output current of the transmitter unit to the primary coil to 24V and 1000mA respectively. The controller can be configured to allow bidirectional communication between the transmitter unit and the receiver unit for controlling the predetermined maximum magnetic field output by the primary coil.

[0011] In one embodiment, the guide can be a marking on the receiver unit fixed on one side of the panel, and the locator is an opening provided on the transmitter unit, whereby matching the opening with the marking allows the transmitter unit and the receiver unit to be aligned. The opening can be provided at the center of the transmitter unit surrounded by the primary coil. In a specific embodiment, the marking can be provided at the center of the receiver unit surrounded by the secondary coil.

[0012] In one embodiment, the guide can be a first protrusion extending from the receiver unit, the locator can be a second protrusion extending from the transmitter unit, and wherein the first protrusion and the second protrusion have the same profile.

[0013] In another embodiment, the guide can be a marking defining a shape provided on the transmitter unit, and the locator can be a boundary of the receiver unit defining the same shape.

[0014] In another alternative embodiment, the guide can be a boundary of the transmitter unit defining a profile, and the locator can be a boundary of the receiver defining the same profile.

[0015] In another alternative embodiment, the guide can be a boundary of the receiver unit defining a first geometric shape, and the locator can be a boundary of the transmitter unit defining a second geometric shape smaller than the first geometric shape.

[0016] According to a second aspect of the present application, there is provided an electrical appliance system comprising the above power transmission system and an electrical appliance, wherein the electrical appliance is selected from a group comprising an outdoor camera, a security light or a lighting light.

[0017] According to a third aspect of the present utility model, a system for wireless power transmission from one side of a non-metal panel to an opposite side of the panel is provided, comprising or wherein: i) a transformer for reducing the voltage of 110V to 240V AC power input from a power outlet of a house to 5V to 24V, thereby generating voltage-reduced AC power; ii) a transmitter unit, which is mountable on one side of the panel, wherein the transmitter unit is provided with a first converter for increasing the frequency of the voltage from 50Hz to 60Hz to 50kHz to 300kHz, thereby generating frequency-increased current; iii) the transmitter unit is provided with a primary coil for receiving the voltage of 5V to 24V reduced and the frequency of 50kHz to 300kHz increased of the AC power, thereby generating a magnetic field; iv) a receiver unit, which is mountable on the opposite side of the panel, wherein the receiver unit comprises a secondary coil, which generates AC power when subjected to the magnetic field, v) a second converter for converting the AC power generated in the secondary coil into DC power to supply to an electrical appliance mountable or installed near the receiver unit, and vi) in use, the transmitter unit and the receiver unit are separated by the panel, the thickness or gap of the panel is up to 40mm, preferably up to 30mm, more preferably up to 20mm.

[0018] Preferably, the system can comprise a controller for limiting the output voltage and the output current of the transmitter unit to 24V and 1000mA respectively, wherein the controller is configured to allow bidirectional communication between the transmitter unit and the receiver unit for controlling the predetermined maximum magnetic field output by the primary coil, and wherein the receiver unit is configured to output a voltage of up to 24V.

[0019] Suitably, the system can comprise a positioning system, which is provided with a guide on the transmitter unit or the receiver unit and a positioner on the other corresponding unit, whereby when a user installs the system, the user can use the positioner to check the position of the guide on the panel and position and align the transmitter unit and the receiver unit so that the receiver unit is maximally exposed to the magnetic field, the guide is a mark fixed on the receiver unit on one side of the panel, the positioner is an opening provided on the transmitter unit, whereby matching the opening with the mark allows the transmitter unit and the receiver unit to be aligned, and the opening is provided at the center of the transmitter unit surrounded by the primary coil, and the mark is provided at the center of the receiver unit surrounded by the secondary coil.

[0020] Advantageously, the guide can be a first protrusion extending from the receiver unit, the positioner can be a second protrusion extending from the transmitter unit, and wherein the first protrusion and the second protrusion can share the same profile.

[0021] In one embodiment, the guiding means can be a marking defining a shape provided on the transmitter unit and the positioner is a border of a receiver unit defining the same shape.

[0022] In one embodiment, the guiding means can be a border of the transmitter unit defining a contour and the positioner can be a border of the receiver defining the same contour.

[0023] In one alternative embodiment, the guiding means can be a border of the receiver unit defining a first geometric shape and the positioner is a border of the transmitter unit defining a second geometric shape smaller than the first geometric shape. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic view showing a house having an outside provided with a wall and a window on which a first embodiment of the power transmission system according to the present utility model can be installed;

[0025] Figure 2a and Figure 2b are respectively Figure 1 views of the indoor and outdoor environment of the house of

[0026] Figure 3 is Figure 2a a close-up view of the indoor environment of

[0027] Figure 4a is Figure 2b a close-up view of the outdoor environment of

[0028] Figure 4b is Figure 2a a close-up view of the indoor environment of Figure 4a an embodiment of

[0029] Figure 5a and Figure 5b are respectively schematic views showing parts of the transmitter unit and of the receiver unit of Figure 4a and Figure 4b the power transmission system of

[0030] Figure 6 is a schematic view showing the power transmission system installed in the house of Figure 1

[0031] Figure 7 is an alternative schematic view showing a first embodiment of the power transmission system of Figure 4a and Figure 4b

[0032] Figure 8 is a schematic view showing Figure 7 ​​Another schematic view of the installation of the first embodiment of the power transmission system of

[0033] Figure 9a , Figure 9b and Figure 9c are additional schematic views of the installation of the first embodiment of the power transmission system of Figure 4a and Figure 4b are additional schematic views of the installation of the first embodiment of the power transmission system of

[0034] Figure 10 is a schematic view illustrating a second embodiment of the power transmission system according to the present utility model;

[0035] Figure 11 is a schematic view illustrating a third embodiment of the power transmission system according to the present utility model;

[0036] Figure 12 is a schematic view illustrating a fourth embodiment of the power transmission system according to the present utility model; and

[0037] Figure 13 is a schematic view illustrating a fifth embodiment of the power transmission system according to the present utility model. DETAILED DESCRIPTION

[0038] The present utility model is mainly related to a system for wireless transmission of power through an obstacle (e.g. a flat panel such as a glass panel) or a gap. For example, power can be wirelessly transmitted through the glass panel of a window from one side of a residential window to the other side of the window. In another case, the barrier (typically flat) can be made of a non-metallic material, for example, a ceramic panel, a drywall panel, a wooden panel, a paper panel or a double-paned glass panel with a vacuum or air gap in between.

[0039] By way of example, Figure 1 a residential house is shown. The house has the form of a typical residential house, Figure 1 is a view showing the front face of the house 2. The front face of the house 2 is provided with a plurality of windows 4, 6, 8, including a main window 4 of the living room and a front door 10. In this example, the windows are provided with transparent glass panels 4a.

[0040] Figure 2a and Figure 2b show the interior and exterior, respectively, of the living room of the house. In particular, Figure 2a is a view of the living room showing the main window 4 looking out on the front face area of the house 2 and the other house across the street. Figure 2a The living room is shown provided with an electrical power outlet 12 (~110V or ~240V) in the lower left corner of the wall where the main window 4 is located. Figure 2b corresponding to Figure 1 , although Figure 2b is a close-up view of the main window 4. From Figure 1 andFigure 2b It can be seen that the external front of the house 2 is not provided with power sockets.

[0041] Figure 3 corresponding to Figure 2a but, for a zoomed view, more clearly showing the environment of the living room.

[0042] Figure 4a and Figure 4b corresponding to Figure 2b and Figure 2a , although the residence 2 is installed with a first embodiment of the power transmission system according to the present utility model. The power transmission system has two main parts, namely the transmitter unit 14 and the receiver unit 16.

[0043] Figure 4a The receiver unit 16 is shown, which comprises a receiver 17 in the form of a disc structure and an electrical cable 17a for supplying power to an electrical appliance, in this figure a security camera.

[0044] Figure 4b The living room is shown installed with the transmitter unit 14. In this embodiment, the transmitter unit 14 comprises a transmitter 18 in the form of a disc structure and an electrical cable 20 extending from the disc structure for establishing an electrical connection with the power socket 12 via a power plug 22. In this embodiment, the transmitter unit 14 is provided with a primary coil 25 made of copper wire coiled into a disc structure. In this embodiment, the transmitter unit 14 is provided with a transformer for reducing the alternating voltage from 110V (or 240V) from the power socket 12 to 5V to 24V. The transmitter unit 14 is also provided with a first converter for increasing the frequency of the alternating current from the power socket 12 from 50Hz-60Hz to 50kHz to 300kHz. The transformer can be located in the power plug 22 or can exist as a unit external to the power plug 22. The first converter can be located in the disc structure of the transmitter 18.

[0045] Figure 5a and Figure 6 The internal structure of the transmitter 18 is shown. Figure 5a is a schematic view showing the primary coil 25 and a portion of the electrical cable 20 extending downwardly from the transmitter 18. For illustration, the housing 30 of the transmitter 18, which houses these components, is removed, the primary coil 25 is essentially a long copper wire formed into a loop 25, defining an opening 26 in the center of the loop 25. Figure 6When the cable 20 is connected to the power socket 16, the alternating current passing through the primary coil 24 will generate a magnetic field or flux, as shown by the loop 28. The centre of the housing 30 of the transmitter 18 also has cut-out areas 26a, 26b. Due to the presence of the opening 26 defined by the loop of the primary coil and the cut-out areas 26a, 26b of the housing 30, a see-through hole is also provided in the centre of the transmitter unit. See line A-A’. Also see Figure 7 .

[0046] Figure 5b The internal structure of the receiver 17 of the receiver unit 16 is shown. The receiver unit 16 also comprises a receiver 17 having a housing that houses a secondary coil 34. Similar to the primary coil 24 of the transmitter 18, the secondary coil 34 of the receiver 17 of the receiver unit 16 also defines an opening 36. However, unlike the housing 30 of the transmitter 18, the housing 32 of the receiver 17 is not provided with any cut-out areas in its centre. Instead, the housing 32 facing the side towards the glass panel is provided with a protruding guide 38 in the form of a marking in its centre. As the housing 32 does not have cut-out areas, the receiver 17 does not have a see-through hole in the centre but only a visible marking in the centre. Also see Figure 7 .

[0047] The receiver unit 16 has a second converter for converting the alternating current generated in the secondary coil 34 into direct current for supply to the electrical appliance. The second converter also acts as a voltage regulator to stabilise the converted direct current to a predetermined fixed voltage, for example, 5V or 9V. This is to protect the connected electrical appliance from over-power or fire.

[0048] The system also comprises a controller as a safety feature. Specifically, the controller limits the voltage and current output from the transmitter unit to 24V 1000mA respectively, such that the receiver coil does not receive excess power and does not generate excess voltage or current therefrom.

[0049] Figure 6 When the primary coil 24 generates a magnetic field, the magnetic field will cause an alternating current to be generated in the secondary coil 34, as shown schematically. The conversion circuit from the second converter converts the alternating voltage into direct voltage. The receiver unit 16 is also provided with a cable 40 for supplying direct current from the conversion circuit for use by the electrical appliance. In Figure 6 the case, the cable 40 extends upwards from the housing 32 of the receiver 17 and is connected to the electrical appliance, which in this embodiment is a surveillance camera 42.

[0050] According to the above design, it will be appreciated that when a current pulse (alternating current) passes through the wire of the primary coil, a magnetic field is generated. The presence of the adjacent secondary coil in the moving magnetic field affects the generation of alternating current in the secondary coil. Thus, power is transmitted from the transmitter unit 14 on one side of the window 4 through the glass panel 4a to the receiver unit 16 on the other side of the window 4. It should be noted that when the transmitter unit 14 is installed on the indoor (or interior) side of the window 4 and the receiver unit 16 is installed on the outdoor (or exterior) side of the window 4, no drilling is required. Effectively, reliable power is transmitted from the power outlet 12 in the living room to the electrical appliance 42 via the transmitter unit 14 and the receiver unit 16.

[0051] Figure 7 One aspect of the embodiment is shown in more detail. The housing 30 of the transmitter unit 14 has two halves, namely a rear housing member 30a for attachment to the indoor side of the glass panel and a front housing member 30b facing away from the glass panel 4a. The front housing member 30a and the rear housing member 30b are fixed together by screws and together define a cavity for accommodating the primary coil 24 and other electronics, wherein the electrical cable 20 extends out of the housing 30 from the transmitter 18 for connection to the power outlet 16.

[0052] Still referring to Figure 7 Likewise, the housing 32 of the receiver unit 16 has two halves, namely a rear housing member 32b for attachment to the outdoor side of the glass panel and a front housing member 32a facing away from the glass panel. The front housing member 32a and the rear housing member 32b are fixed together by screws and also together define a cavity for accommodating the secondary coil 34 and other electronics, wherein the electrical cable 40 extends out of the housing 32 from the receiver 17 for connection to the electrical appliance. As mentioned above, the protruding marker 38 is provided in the center of the side of the housing 32 of the receiver 17 facing the glass panel.

[0053] Positioning the transmitter 18 of the transmitter unit 14 and the receiver 17 of the receiver unit 16 on opposite sides of the glass panel 4a in alignment is a feature of at least some embodiments of the present application. The positioning can be considered an alignment system. It will be appreciated that if the transmitter 18 and the receiver 17 are not aligned or not sufficiently aligned, the magnetic field generated by the primary coil 24 can not be transmitted or can not be sufficiently transmitted to the secondary coil 34 so that the receiver unit does not generate or does not sufficiently generate direct current. One challenge is that it can be tricky to position the transmitter 18 and the receiver 17 on opposite sides of the glass panel in an aligned manner due to the presence of the glass panel.

[0054] Figure 8 And Figures 9a to 9c is a schematic view of another aspect of the first embodiment of the power transmission system of the present application. In particular, Figure 8 And Figures 9a to 9cThe configuration and installation of the power transfer system of this embodiment is shown. The transmitter unit and receiver unit share the same circular profile, except that the housing 30 of the transmitter unit 14 has a see-through hole 26, 26a, 26b in its center and there is a protruding marker 38 in the center of the receiver unit. Furthermore, in this embodiment, the transmitter unit and receiver unit share the same circular dimensions. During installation, the user can first secure the receiver 17 on the outdoor side of the glass panel, for example, in the upper left corner of the main window, so that the protruding marker 38 is visible on the other side via the glass panel. The securing can be achieved by using double-sided tape or Velcro® tape. After securing the receiver 17 in the upper left corner of the glass panel 4a, the user can enter the living room and install the transmitter 18 on the other side of the glass panel. To ensure that the transmitter 18 is aligned with the receiver 16, the user positions the transmitter 18 on the indoor side of the glass panel so that the see-through hole 26, 26a, 26b coincides with the protruding marker 38. Specifically, the user will slide the transmitter 18 on the indoor side of the glass panel until the marker 38 of the receiver 17 is visible from the see-through hole 26, 26a, 26b of the transmitter 18. Once the marker 38 is seen in the center of the see-through hole 26, 26a, 26b, the transmitter 18 and receiver 16 are aligned. As mentioned above, the transmitter 18 and receiver 17 share the same circular profile. Thus, it can be appreciated that the transmitter 18 and receiver 17 are aligned when the edge of the housing 30 of the transmitter 18 matches the edge of the housing 32 of the receiver 17. In other words, this embodiment of the power transfer system has two positioning and alignment features. First, the matching of the see-through hole 26, 26a, 26b of the transmitter 18 with the protruding marker 38 of the receiver 17 is a first indication of alignment, and the matching of the circular edge of the transmitter 18 with the circular edge of the receiver 17 is a second indication of alignment. See, in particular Figures 9a to 9c In any case, it is contemplated that in other embodiments, the housing of the receiver unit can alternatively be configured to have a see-through hole in its center, while the housing of the transmitter unit is provided with a protruding marker.

[0055] Experiments leading to the present application have shown that the present application is viable as long as the thickness of the barrier or gap between the transmitter and receiver is not too large. However, there are preferred parameters in the context of the present application. Table 1 below summarizes the results regarding thickness / gap and current received or generated from the receiver unit.

[0056] Table 1

[0057]

[0058] Table 1 shows that at a distance or spacing of 40 mm, the current generated at the receiver unit at 5V ranges from 0.25A to 0.36A depending on the material of the barrier panel. This range of current is sufficient to reliably operate a range of electrical appliances. When the material of the barrier is a single pane of glass, the current generated at the receiver unit at 5V ranges from 1.36A to 0.29A depending on the thickness of the barrier panel. This range of current is also sufficient to reliably operate a range of electrical appliances.

[0059] Other embodiments of the positioning system used to assist in the alignment of the transmitter unit and receiver unit are explained as follows. In addition, experiments were also conducted for the use of panels made of different non-metallic materials.

[0060] Figure 10 is a schematic diagram of an alternative embodiment of the positioning system of the power transmission system according to the present application. In this embodiment, the receiver unit 116 again has a receiver 117 having a housing 132 made of a larger square portion (lower portion) 133 and a smaller square portion (upper portion) 135 protruding upwardly from the larger square portion 133. The smaller square portion 135 defines a square edge that acts as a guide or marker. The transmitter unit 114 again has a transmitter 118 having a housing 130, but is made of a circular portion 131a and a square portion 131b protruding upwardly from the circular portion 131a, the upper square portion 131b being significantly smaller in size than the lower circular portion 131a. It should be noted, however, that the upper square portion 135 of the receiver 117 and the upper square portion 131b of the transmitter 118 share the same square profile. During installation, the receiver 117 can be fixed to the outdoor side of the glass panel. The user can then access the other side of the glass panel and position the transmitter 118 by moving the transmitter 118 so that the edge of the upper square 131b of the transmitter 118 matches the edge of the upper square 135 of the receiver 117. In any case, it is envisaged that in other embodiments, the upper portion of the housing of the receiver unit and the upper portion of the housing of the transmitter unit can take shapes other than square or rectangular. As long as the upper portions (or protrusions) share the same profile, the protrusions can be used as markers to form the positioning system.

[0061] Figure 11is a schematic diagram showing an alternative embodiment of a positioning system for a power transmission system according to the present utility model. In this embodiment, the receiver unit 216 again has a transmitter 218, which has a housing 232, but generally has a square profile without any protrusions. The transmitter unit 214 again has a transmitter 217, which has a housing 230, which has a circular profile. However, the side of the housing 230 of the transmitter 218 facing the glass panel is provided with a marking 231 (indicated by the dashed lines defining a square), which shares the same square dimensions as the housing 232 of the receiver 217. During installation, the user can first secure the transmitter 218 to the top left corner of the glass panel, such that the square marking 231 is visible from the opposite side of the glass panel from the front of the house. The user then walks to the front of the house and positions the receiver 217 on the other side of the glass panel, such that the edges of the housing 232 of the receiver 217 match the marking 232 on the side of the housing 230 of the transmitter 218 facing the glass panel. In any case, it is envisaged that the transmitter 218 can be configured in a square (or rectangular) shape, while the housing of the receiver 217 provides a matching square or rectangular marking. As long as the shape of one of the housings matches the marking on the other housing, a viable positioning system for alignment purposes can still be constituted.

[0062] In an alternative embodiment, the circular housing 230 of the transmitter 218 is just smaller in size than the housing 232 of the receiver unit 217, such that the transmitter 218 and the receiver unit 217 are aligned when the edges of the transmitter 218 just touch the edges of the square housing, or, the housing 232 of the receiver unit 217 can be circular, the housing of the transmitter 218 can be square, and just smaller than the receiver unit 217, such that the two units are aligned when the four corners of the square transmitter 218 touch the circular edges of the receiver unit 217.

[0063] Figure 12 is a schematic diagram showing an alternative embodiment of a positioning system for a power transmission system according to the present utility model. In this embodiment, the receiver unit 316 again has a receiver 317, which has a housing 332, which has a circular profile, without any protrusions or see-through holes. The transmitter unit 314 again has a transmitter 318, which has a housing 330, which has a circular profile including the same circular dimensions. During installation, the user can first secure the receiver 317 to the top left corner of the outwardly facing side of the glass panel. The user then proceeds to the indoor side of the glass panel and positions the transmitter 318, such that the edges of the housing 330 of the transmitter 318 match the edges of the housing 332 of the receiver 317. Alternatively, the user can first secure the transmitter 318 to the glass panel, and then proceed to secure the receiver 317 to the other side of the glass panel.

[0064] Figure 13 is a schematic diagram showing an alternative embodiment of the positioning system of the power transmission system according to the present utility model. In this embodiment, the receiver unit 416 again has a receiver 417, which has a housing 432 with a circular profile 435 without any protrusions. The transmitter unit 414 again has a transmitter 418, which has a housing 430, which also has a circular profile 431, but is slightly smaller in size. In the installation process, the user can first fix the receiver 417 to the upper left corner of the glass pane. The user then proceeds to the other side of the glass pane and positions the transmitter 418 such that the edge of the housing 430 of the transmitter 418 rests within the edge of the housing 432 of the receiver 417. The positioning system according to this embodiment of the present utility model is configured such that as long as the transmitter 418 rests within the edge of the receiver 417, a viable positioning system for alignment purposes can still be constituted.

[0065] It will be appreciated that, for clarity, certain features of the present utility model have been described in the context of separate embodiments. Conversely, various features of the present utility model, which are, for brevity, described in the context of a single embodiment, can also be provided separately or in any appropriate sub-combination. It will be appreciated that certain features of the embodiments are shown by way of non-limiting examples. Furthermore, those skilled in the art will recognize that the present utility model has other features and advantages that are beyond those specifically mentioned above.

Claims

1. A system for wireless power transmission, the system being used to transmit wireless power from one side of a transparent or translucent panel to the opposite side of the panel, characterized in that: include: A transmitter unit, which can be mounted on one side of the panel, wherein the transmitter unit includes a primary coil for receiving alternating current, causing the primary coil to emit a magnetic field; and A receiver unit, which can be mounted on the opposite side of the panel, includes a secondary coil that generates alternating current when subjected to the magnetic field from the primary coil. in: The transmitter unit is equipped with a first cable, one end of which can be connected to a power socket to receive alternating current from the power socket. The receiver unit includes a second converter for converting the alternating current generated by the secondary coil into direct current to supply electrical appliances that can be installed or are installed near the receiver unit. in: The system includes a positioning system with a guide device on the transmitter unit or the receiver unit and a locator on another corresponding unit, so that when the user installs the system, the user can use the locator to check the position of the guide device on the other side of the panel and align the transmitter unit and the receiver unit to maximize the exposure of the secondary coil to the magnetic field.

2. The system for wireless power transmission according to claim 1, characterized in that: in, The panel is flat and non-metallic, and / or the panel has a thickness of up to 40mm, 30mm, or 20mm.

3. The system for wireless power transmission according to claim 1, characterized in that: Includes a transformer for reducing the voltage of the AC power input from the power socket (110V to 240V) to 5V to 24V, thereby generating reduced AC power to supply the primary coil, wherein the transformer can be located at one end of the cable.

4. The system for wireless power transmission according to claim 3, characterized in that: It includes a first converter for increasing the frequency of the alternating current input from the power socket from 50Hz to 60Hz to 50kHz to 300kHz, thereby generating a current with increased frequency.

5. The system for wireless power transmission according to claim 1, characterized in that: The system includes a controller that limits the output voltage and output current from the transmitter unit to the primary coil to 24V and 1000mA, respectively.

6. The system for wireless power transmission according to claim 5, characterized in that: in, The controller is configured to allow bidirectional communication between the transmitter unit and the receiver unit for controlling a predetermined maximum magnetic field output by the primary coil.

7. The system for wireless power transmission according to claim 1, characterized in that: in, The guide device is a mark fixed to one side of the receiver unit on the panel, and the locator is an opening provided on the transmitter unit, thereby matching the opening with the mark and allowing the transmitter unit and the receiver unit to be aligned.

8. The system for wireless power transmission according to claim 7, characterized in that: in, The opening is located at the center of the transmitter unit surrounded by the primary coil, and the mark is located at the center of the receiver unit surrounded by the secondary coil.

9. The system for wireless power transmission according to claim 1, characterized in that: in, The guide device is a first protrusion extending from the receiver unit, and the locator is a second protrusion extending from the transmitter unit, wherein the first protrusion and the second protrusion have the same profile, thereby matching the first protrusion with the second protrusion and allowing the transmitter unit and the receiver unit to be aligned.

10. The system for wireless power transmission according to claim 1, characterized in that: in, The guide device is a marker that defines the shape disposed on the transmitter unit, and the locator is a boundary that defines the receiver unit of the same shape.

11. The system for wireless power transmission according to claim 1, characterized in that: in, The guiding device defines the boundary of the transmitter unit with a defined profile, and the locator defines the boundary of the receiver with the same defined profile.

12. The system for wireless power transmission according to claim 1, characterized in that: in, The guiding device defines the boundary of the receiver unit with a first geometry, and the locator defines the boundary of the transmitter unit with a second geometry smaller than the first geometry.

13. An electrical system, characterized in that: Includes the system and electrical appliances for wireless power transmission according to claim 1, wherein the electrical appliances are selected from the group including outdoor cameras, safety lights, or lighting lamps.

14. A system for wireless power transmission, the system being used for wireless power transmission from one side of a non-metallic panel to the opposite side of the panel, characterized in that: Includes or comprises: A transformer is used to reduce the voltage of alternating current (AC) from 110V to 240V, which is input from a house's power outlet, to 5V to 24V, thereby producing AC with reduced voltage. A transmitter unit, which can be mounted on one side of the panel, wherein the transmitter unit is provided with a first converter for increasing the frequency of the voltage from 50Hz to 60Hz to 50kHz to 300kHz, thereby generating a current with increased frequency. The transmitter unit is equipped with a primary coil for receiving alternating current voltages ranging from 5V to 24V and frequencies ranging from 50kHz to 300kHz, thereby generating a magnetic field. A receiver unit, which can be mounted on the opposite side of the panel, includes a secondary coil that generates alternating current when subjected to the magnetic field. A second converter is used to convert the alternating current generated in the secondary coil into direct current for supplying electrical appliances that can be installed or installed near the receiver unit. In use, the transmitter unit and the receiver unit are separated by the panel, and the thickness or gap of the panel is 40mm, 30mm or 20mm.

15. The system for wireless power transmission according to claim 14, characterized in that: The device includes a controller that limits the output voltage and output current of the transmitter unit to 24V and 1000mA, respectively. The controller is configured to allow bidirectional communication between the transmitter unit and the receiver unit for controlling a predetermined maximum magnetic field output by the primary coil. The receiver unit is configured to output a voltage up to 24V.

16. The system for wireless power transmission according to claim 14, characterized in that: in: The system includes a positioning system with a guide device on the transmitter unit or the receiver unit, and a locator on another corresponding unit. Thus, when a user installs the system, the user can use the locator to check the position of the guide device on the panel and to position and align the transmitter unit and the receiver unit, maximizing the exposure of the receiver unit to the magnetic field. The guide device is a mark fixed to one side of the receiver unit on the panel, and the locator is an opening provided on the transmitter unit, thereby aligning the opening with the mark to allow the transmitter unit and the receiver unit to be aligned. The opening is located at the center of the transmitter unit surrounded by the primary coil, and the mark is located at the center of the receiver unit surrounded by the secondary coil.

17. The system for wireless power transmission according to claim 16, characterized in that: in, The guide device is a first protrusion extending from the receiver unit, the locator is a second protrusion extending from the transmitter unit, and wherein the first protrusion and the second protrusion have the same profile.

18. The system for wireless power transmission according to claim 16, characterized in that: in, The guide device is a marker that defines the shape disposed on the transmitter unit, and the locator is a boundary that defines the receiver unit of the same shape.

19. The system for wireless power transmission according to claim 16, characterized in that: in, The guiding device defines the boundary of the transmitter unit with a defined profile, and the locator defines the boundary of the receiver with the same defined profile.

20. The system for wireless power transmission according to claim 16, characterized in that: in, The guiding device defines the boundary of the receiver unit with a first geometry, and the locator defines the boundary of the transmitter unit with a second geometry smaller than the first geometry.

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