Background technology
Along with the prosperity of wireless communication technology, to the information of own desired interchange, the pervasive information environment that anyone can obtain as required and transmit in any place, among building.But reality is, up to the present most of communication information equipment is also relying on battery, and the use of communication information equipment is subject to obtaining by wire cable the restriction that power supply is supplied with.
Therefore,, before terminating machine power issue is resolved, not talkative wireless messages network environment has really realized freedom.
In order to address these problems, among developing with the various technology of wireless way for transmitting electric power.Utilize electric wave electric wave reception mode, utilize the magnetic induction way of electromagnetic field, and utilize the magnetic resonance mode of magnetic field and electric field energy conversion, be exactly representative typical method.
At this, electric wave reception mode is to utilize antenna to make electric wave radiation propagation in air, although have advantages of electric power transfer distance, because its aerial radiation loss is very large, power transmission efficiency is very limited.
In addition, magnetic induction way is that primary winding is installed on transmitter, secondary coil is installed on receiver, utilize the magnetic energy combination technology of primary winding and secondary coil, a kind of mode that realizes electric power transfer, has improved power transmission efficiency although it has advantages of, in order to realize electric power transfer, primary winding and secondary coil only must remain on several millimeters closely in, the location levels of collimation of primary winding and secondary coil can directly have influence on the great variety of power transmission efficiency.This is a shortcoming of magnetic induction way.
Therefore, although it is similar with magnetic induction way to develop recently one, rely on coil form inductor and electric capacity, make concentration of energy to a specific resonant frequency, in the magnetic resonance mode of magnetic energy form transferring electric power.This magnetic resonance mode has advantages of extremely number meter Yuan of larger Energy Transfer, but its exigent resonance characteristics (High Quality Factor).That is to say, whether magnetic resonance mode can mate because of impedance, and whether resonance frequency unanimously and directly has influence on the great variety of efficiency.This is a shortcoming of magnetic resonance mode.
As mentioned above, in automobile under steam, also can realize wireless charging system, does is especially, while intending building wireless charging system in automobile, maximum problem to overcome to greatest extent the vibration that the middle automobile that travels transmits? adopt any mode more effective? how to gear to actual circumstances and efficiently utilize the problem in car room space.The present invention is exactly the invention about wireless charging transmitter module volume.
In above-mentioned various wireless charging modes, especially above-mentioned magnetic induction way, in the time that the wireless charging transmitter module for wireless charging is installed to automotive interior under steam, must there is in addition the fixture of position play between a portable terminal computer that prevents from being provided with primary winding and secondary coil.Set up above-mentioned other fixture and will make volume increase, the problem that certainly will cause the space of car room storage belongings to be tied up.
In addition, final result of design can cause because of the profile of wireless charging transmitter module the difference in chargeable region.Therefore, the most applicable configuration design has been the factor of extremely important effect.
Summary of the invention
In view of the defect of above-mentioned prior art existence, the object of the invention is to propose a kind of automobile wireless charging transmitter module, in the wireless charging area of guaranteeing portable terminal computer the best, also make the fixture position of wireless charging area reasonable, the volume that takies car room space reaches perfect condition, improves the easy-to-use experience of driver.
Above-mentioned purpose of the present invention, its technical solution being achieved is: automobile wireless charging transmitter module, it is characterized in that: described transmitter module has body and interior integrated and the transmitting coil portion and the PCB that establish, the inner chamber of wherein said body is made as installing space, the top side face of described body is made as and is isolated from the outside, to the placed side of portable terminal computer in requisition for carrying out wireless charging, described transmitting coil portion is located in installing space and is attached at placed side inner side, described PCB is located in installing space and with the magnetic field of transmitting coil portion and exports Isolated Shield.
Further, described transmitting coil portion and PCB are the certain thickness strip plate body of tool and are arranged in parallel and are located at the both sides of installing space along same length direction.
Further, described transmitting coil portion and the horizontal setting of PCB, and upper surface is separately attached at placed side inner side, lower surface is separately relative with installing space bottom surface and establish.
Further, the upper surface of described transmitting coil portion and lower surface are established with placed side inner side and installing space bottom surface subtend respectively, and it is longitudinal and establish and PCB is positioned at transmitting coil radical side that described PCB is that relative placed side inner side and installing space bottom surface intersect vertically.
Again further, described transmitting coil portion is positioned at the upper end side of longitudinal PCB.
Further, described transmitting coil portion and the horizontal setting of PCB, and transmitting coil portion establishes lower parallel being stacked at upper PCB.
Again further, described transmitting coil portion and PCB paper part are provided with sheet shield.
Apply technical scheme of the present invention, the advantage applies of its relative prior art for: by the transmitting coil portion that configures in the installing space of body and the position rational Design on Plane of PCB, the volume of wireless charging transmitter module is simplified, there is the effect that improves inner space of vehicle utilance.
Embodiment
Below just accompanying drawing in conjunction with the preferred embodiments, is described in further detail the specific embodiment of the present invention, so that technical solution of the present invention is easier to understand, grasp.
Automobile wireless charging transmitter module of the present invention, is in order to make carborne occupant, can, to the battery of entrained portable terminal computer, charge and form according to wireless charging mode, and this is prerequisite of the present invention.
For the convenience on understanding, with regard to automobile wireless charging transmitter module of the present invention, in multiple wireless charging mode, select to have adopted to be suitable for WPC(Wireless Power Consortium) magnetic induction way of the standard mode situation of carrying out wireless charging is illustrated.Under magnetic induction way, be configured in secondary coil and wireless charging module constituent components as receiving coil portion on above-mentioned portable terminal computer, as producing play between the primary winding of transmitting coil portion, thereby there is to depart from the situation of chargeable scope, at this moment need to take other fixture to prevent its play, the present invention is especially to provide the installation site information of fixture as basic framework.
But automobile wireless charging transmitter module embodiment of the present invention, is not limited to the WPC standard mode in above-mentioned wireless charging mode.In body optimal volume design described later, assert in its conspicuousness aspect the effect of reduced volume, and be equally applicable to the magnetic resonance mode of A4WP standard mode.
Automobile wireless charging transmitter module of the present invention, it has body and interior integrated and the transmitting coil portion and the PCB that establish, wherein the inner chamber of body is made as installing space, the top side face of body is made as and is isolated from the outside, to the placed side of portable terminal computer in requisition for carrying out wireless charging, transmitting coil portion is located in installing space and is attached at placed side inner side, and PCB is located in installing space and with the magnetic field output Isolated Shield of transmitting coil portion.And can set in the specific implementation: transmitting coil portion and PCB are the certain thickness strip plate body of tool and are arranged in parallel and are located at the both sides of installing space along same length direction.Above-mentioned placed side inner side also can be understood as the ceiling face of transmitting coil portion, and this ceiling face is necessary with the body conduct all the time with installing space, general key element, implements many execution modes of automobile wireless charging transmitter module of the present invention, explanation hereby
Fig. 1 is the oblique view that shows automobile wireless charging transmitter module of the present invention the first embodiment, plane graph, front elevation and side view that Fig. 2 is Fig. 1.
Automobile wireless charging transmitter module of the present invention the first embodiment 1A as depicted in figs. 1 and 2, has formed the installing space that various electric components are installed on body 10; At installing space, primary winding being at least installed is the 30A of transmitting coil portion; The 30A of transmitting coil portion is connected on the PCB40A that is together arranged on installing space, realizes and starts and control.
The 30A of transmitting coil portion, can be that coil is wound around with multiturn, and three states that single coil is connected, make it form appropriate electromagnetic field; There is set width and thickness, extend along its length the board-like shape forming.
For fear of obscuring on understanding, below said thickness refer to the distance of upper and lower Z direction; The distance of directions X before and after width refers to; Length refers to the distance of left and right Y-direction.This definition can be equally applicable to PCB40A described later.
The 30A of transmitting coil portion is the requisite Constitution Elements that generates electric power.In the time powering up, by means of the effect along the mobile electric current of coil, induction generates after electromagnetic field, relies on the interaction of the portable terminal computer of electromagnetic field and employing wireless charging mode, produces electric power.
In addition, PCB40A is the same with emission part coil, has set width and thickness, and can extend along its length in the nature of things the board-like shape of formation.As is well known to the skilled person, PCB40A can be formed by various electric component solder bond, the selection of its electric component, combines the emphasis that non-present patent application is paid close attention to, therefore omit.
That is to say, automobile wireless charging transmitter module of the present invention, with in the installing space of limited body 10, installs indispensable Constitution Elements transmitting coil portion 30 and PCB40; And body top side face is made as the placed side to portable terminal facility position fixation, selecting and design best position is object.
In addition, automobile wireless charging transmitter module of the present invention, when with the secondary coil of transmitting coil portion 30 interactional portable terminal computers, its installation is put in the time having the middle part of both rectangle portable terminal computers of measured length, will guarantee as far as possible that in design the transmitting coil portion 30 that takes formula terminating machine has maximum chargeable region.This is wireless charging efficiency is guaranteed for realizing compact conformation of the present invention when object.Therefore,, in whole embodiment 1A that will mention in the back, 1B, 1C, on the installing space internal emission line circle portion of body 10, can be configured to the state being adjacent to the ceiling face of installing space.
As mentioned above, in the automobile wireless charging transmitter module of first embodiment of the invention 1A, body 10 can comprise the placed side 20 of laying the portable terminal computer that need to carry out wireless charging.In the part of placed side 20 on form body 10, the installing space top of body 10 is isolated from the outside, thus a part for formation installing space ceiling face.
Although being close to placed side 20, places portable terminal computer, but according to the difference of wireless charging mode, also can adopt the structure that other fixture is installed, the portable terminal computer being placed in placed side 20 is fixed up, to prevent the being placed in portable terminal computer generation play in placed side in running car.
At this, it would be desirable that PCB40A is arranged on to the 30A of transmitting coil portion in installing space, not to be subject to the position of magnetic field (the comprising electromagnetic field) impact of exporting from the 30A of transmitting coil portion around.
The automobile wireless charging transmitter module of first embodiment of the invention 1A, as depicted in figs. 1 and 2, suppose that the 30A of transmitting coil portion and PCB40A are described above separately, there is set thickness and width, the strip of growing up along its length, the 30A of transmitting coil portion and PCB40A can each comfortable side by the configuration that is arranged in parallel of same length direction.
That is to say, in Fig. 1 and Fig. 2, when illustrated left and right directions is defined as to directions X, illustrated fore-and-aft direction is defined as to Y-direction, when illustrated above-below direction is defined as to Z direction, make the 30A of transmitting coil portion take directions X as width, take Y-direction as length, be configured in installing space take Z direction as thickness; And to make to be as mentioned above adjacent to configuration with the ceiling face of installing space above it.
In addition as the definition of above-mentioned direction, PCB40A as depicted in figs. 1 and 2, make it take directions X as width, take Y-direction as length, is configured in installing space take Z direction as thickness, and will make the configuration that is arranged in parallel of its side at the 30A of transmitting coil portion.
That is to say, the 30A of transmitting coil portion and PCB40A separately above, can make it be adjacent to the configuration of above-mentioned ceiling face; And separately, can make its bottom surface with respect to installing space configure.
Automobile wireless charging transmitter module in above-mentioned the first embodiment 1A, because of the thickness of Z direction very little, can make wireless charging transmitter module realize slimming, also portable terminal computer can be pressed to directions X configured length, thereby can expand its chargeable region, thereby there is in the time carrying out the design of other fixture advantage more freely.
Fig. 3 is the oblique view that shows automobile wireless charging transmitter module of the present invention the second embodiment, plane graph, front elevation and side view that Fig. 4 is Fig. 3.
Automobile wireless charging transmitter module in second embodiment of the invention 1B, as shown in Figure 3 and Figure 4, the 30B of transmitting coil portion is configured on the position identical with the first embodiment 1A; PCB40B is configured at installing space: form thickness along directions X, form length along Y-direction, form width along Z direction, and become in a side of the 30B of transmitting coil portion the configuration that is arranged in parallel.
In other words, the 30B of transmitting coil portion above and below, respectively with the ceiling face of installing space and bottom surface in pairs to configuration; PCB40B is vertically intersected on respectively ceiling face and the bottom surface of installing space and configures with left surface and the right flank subtend of installing space.At this, at a side configuration 30B of transmitting coil portion of PCB40B upper end.
Therefore, PCB40B forms width and extends along the below of the 30B of transmitting coil portion, so compared with the first embodiment 1A, exist the shortcoming of the increase of thickness up and down of body 10.Although the shortcoming that exists the thickness up and down of body 10 to increase, PCB40B forms width this point in Z direction, can significantly dwindle the width of the directions X of body 10.
As mentioned above, the automobile wireless charging transmitter module in the second embodiment 1B, in body 10Z direction, the increase of thickness is replaced by dwindling of width on directions X, although be not therefore slim, have advantages of and can global design become compact type.But the size of portable terminal computer is set, because of reduced width on directions X, the length of portable terminal computer can only be settled by Y-direction, thereby can be subject in design certain limitation.
The oblique view of automobile wireless charging transmitter module of the present invention the 3rd embodiment as shown in Figure 5, plane graph, front elevation and side view that Fig. 6 is Fig. 5.
As shown in Figure 5 and Figure 6, the 30C of transmitting coil portion is configured on the position identical with the second embodiment 1B with the first embodiment 1A automobile wireless charging transmitter module in third embodiment of the invention 1C; PCB40C can become in emission part coil bottom parallel shape configuration.
More detailed situation is, PCB40C forms width, forms length, forms thickness be configured in installing space by Z direction by Y-direction with the directions X identical with emission part coil, and with the configuration that becomes to be arranged in parallel of the bottom of the 30C of transmitting coil portion.
As mentioned above, automobile wireless charging transmitter module in the 3rd embodiment 1C, bottom at the 30C of transmitting coil portion has configured PCB40C, dwindle the width of body 10X direction, the 30C of transmitting coil portion and the PCB40C that replace thinner thickness can realize accurate slim design by being stacked up and down configuration, therefore having advantages of.But the same with the second embodiment 1B, the size of portable terminal computer is set, because of reduced width on directions X, the length of portable terminal computer can only be settled by Y-direction, could realize normal wireless charging.Therefore the shortcoming that, exists chargeable region to dwindle.
In addition, whole embodiment 1A, 1B, the 1C of automobile wireless charging transmitter module of the present invention are also included in the shielding sheet 50 configuring between transmitting coil portion 30 and PCB40.The magnetic field (comprising electromagnetic field) that shielding sheet 50 produces transmitting coil portion 30 plays shielding action, to prevent that influence of magnetic field from arriving the electric component of welding.Generally, the electromagnetic field (magnetic field) that transmitting coil portion 30 produces, is to generate by Z-direction (being the upper and lower of transmitting coil portion 30).Although the effect degree on the automobile wireless charging transmitter module of shielding sheet 50 in the first embodiment 1A and the second embodiment 1B is low, in the 3rd embodiment 1C, effect is very powerful.
Owing to having configured shielding sheet 50, make each embodiment 1A, 1B, the 1C of automobile wireless charging transmitter module of the present invention possess the advantage of building more stable wireless charging environment.By the transmitting coil portion that configures in the installing space of body and the position rational Design on Plane of PCB, the volume of wireless charging transmitter module is simplified, there is the effect that improves inner space of vehicle utilance.
Except above preferred embodiment, the present invention can also have other execution mode, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, within all dropping on the present invention's scope required for protection.