TW202212172A - Wireless charging system for electric vehicle - Google Patents

Abstract

A wireless charging system for electric vehicle includes a sense coil, a charge assembly, and a power source. The sense coil is disposed on a bottom portion of the electric vehicle. The charge assembly is disposed on a base layer of the road, and includes a magnetic permeameter and a charge coil. The magnetic permeameter is formed in a column shape. The charge coil is disposed on the outer periphery of the magnetic permeameter. The power source outputs a power to the charge coil, so that the charge coil generates a magnetic field. The magnetic permeameter increases the strength of the magnetic field, and the sense coil produces a sense current for charging the electric vehicle. The wireless charging operation facilitates the convenience of charging the electric vehicle.

Description

Wireless charging system for electric vehicle charging

The present invention relates to a wireless charging related field, in particular to a wireless charging system applied to electric vehicle charging.

With the continuous development of electric vehicles, the charging method of electric vehicles will affect its universality, and the charging method of general electric vehicles usually needs to be parked in a fixed position and charged with a wired connector.

However, the charging of the wired connector is limited by the charging location and charging time, and it is impossible to find a gas station for refueling immediately like a gasoline vehicle, resulting in the inconvenience of kinetic energy replenishment.

Moreover, the wired charger is easily damaged due to long-term use. In addition to the limited service life, it also needs to spend money to replace the wired charger and spend time waiting for the manufacturer to replace the wired charger, which causes inconvenience in use.

In order to solve the above problem, the present invention provides a wireless charging system for electric vehicle charging, which can overcome the disadvantages of wired charging and provide the electric vehicle with the convenience of supplementing electric energy and sustainable operation.

An embodiment of the present invention provides a wireless charging system for electric vehicle charging, which includes: an induction coil disposed on the bottom of the electric vehicle; a charging assembly disposed on the base of the road, the charging assembly having A magnetic conductive member and a charging coil, the magnetic conductive member is generally cylindrical, and the charging coil is arranged on the outer periphery of the magnetic conductive member; and a power source, which is electrically connected to the charging coil of the charging component, and the power source outputs an electric power to the charging Coil, electricity makes the charging coil generate a magnetic field, and the magnetic conductive element enhances the magnetic field strength. When the induction coil senses the change of the magnetic field transmitted by the magnetic conductive element, the induction coil generates an induced current that can be used to charge the electric vehicle.

Through the above, the present invention outputs electric power to the charging coil through the power source, so that the charging coil generates a magnetic field, and the magnetic conductive member can enhance the magnetic field strength, so that the induction coil arranged on the electric vehicle can effectively induce the magnetic field, so as to effectively generate the magnetic field. Induced current for charging electric vehicles; thereby overcoming the shortcomings of wired charging, providing the convenience of electric vehicles to supplement electric energy and continuous work.

In order to facilitate the description of the central idea of the present invention expressed in the column of the above-mentioned summary of the invention, specific embodiments are hereby expressed. Various objects in the embodiments are drawn according to proportions, sizes, deformations or displacements suitable for description, rather than the proportions of actual elements, which will be described first.

Please refer to FIG. 1 to FIG. 4 , the present invention provides a wireless charging system for electric vehicle charging, wherein the electric vehicle 1 can be a mobile vehicle, such as an electric vehicle, an electric scooter, and an electric robot, which uses electric energy as a power source. In the embodiment of the present invention, the electric vehicle 1 is an electric vehicle.

The wireless charging system of the present invention includes:

An induction coil 10 is disposed on the bottom of the electric vehicle 1 , wherein the size and the number of turns of the induction coil 10 can be adjusted according to actual needs, and the present invention does not limit the size and the number of turns of the induction coil 10 .

A charging assembly 20 is disposed on the base layer 3 of the road 2 . The charging assembly 20 has a magnetic conductive member 21 and a charging coil 22 . The magnetic conductive member 21 is approximately cylindrical, and the charging coil 22 is disposed on the outer periphery of the magnetic conductive member 21 . , wherein, the charging coil 22 can be sleeved on the magnetic conductive member 21 or disposed on the outside of the magnetic conductive member 21 , that is, the magnetic conductive member 21 can be set between the induction coil 10 and the charging coil 22 , and can also be set on the outer side of the magnetic conductive member 21 . In addition to the induction coil 10 and the charging coil 22 ; in the embodiment of the present invention, the charging coil 22 is sleeved on the magnetic conductive member 21 .

The size and number of turns of the charging coil 22 and the induction coil 10 can be the same or different. The size and number of turns of the charging coil 22 can be adjusted according to actual needs. The present invention does not limit the size and number of turns of the charging coil 22 .

Furthermore, the magnetic conductive member 21 has a first end 211 and a second end 212 disposed oppositely, and the first end 211 of the magnetic conductive member 21 can be aligned with the surface layer 4 of the road 2 or the first end of the magnetic conductive member 21 . The end 211 is spaced apart from the surface layer 4 of the road 2 ; the charging coil 22 is sleeved on the second end 212 of the magnetic conducting member 21 .

Referring to FIG. 2 , in the embodiment of the present invention, the first end 211 of the magnetic conductive member 21 is spaced from the surface layer 4 of the road 2 by a distance L, the distance L is smaller than the height of the magnetic conductive member 21 , and the distance L is the magnetic conductive member One-twentieth to one-tenth of the height of 21 , wherein the height of the magnetic conductive member 21 is adjusted according to actual needs, and the present invention does not limit the height of the magnetic conductive member 21 .

The magnetic conductive member 21 has a cement mixture and a magnetic conductive mixture, the cement mixture has a water and a cement, and the weight ratio of the cement mixture to the magnetic conductive mixture is between 3:4 and 3:8; the weight ratio of water and cement is between Between 4:10 and 6:10.

The element composition of the magnetic mixture is iron (Fe), carbon (C), silicon (Si), sulfur (S), phosphorus (P) and manganese (Mn). The percentage of the element composition of the magnetic mixture is iron (Fe) 92%, carbon (C) 3.8%, silicon (Si) 0.2%, sulfur (S) 0.05%, phosphorus (P) 0.05% and manganese (Mn) 0.3%.

The magnetically conductive mixture has a sand and a magnetically conductive powder, and the magnetically conductive powder can be iron powder, gold powder, silver powder, copper powder, etc. with magnetically conductive materials; in the embodiment of the present invention, the magnetically conductive powder is iron powder, and the magnetically conductive powder is recycled scrap iron Containers and other scrap iron are formed, and the magnetic conductive powder is formed after crushing, depainting and other procedures.

The volume of the magnetically permeable powder in the magnetically permeable mixture is between 5% and 65%, and the volume of the magnetically permeable powder in the magnetically permeable mixture is preferably 8% to 35%. The volume of the magnetically conductive mixture is 10% or the volume of the magnetically conductive powder accounts for 20% of the magnetically conductive mixture, which can provide effective magnetic conductivity.

Furthermore, the number of the charging components 20 can be one group or a plurality of groups, wherein, please refer to FIG. 3 , when the charging components 20 are used in the parking lot, they can be in the base layer 3 of the road 2 corresponding to each parking grid 5 . A set of charging components 20 is provided; please refer to FIG. 4 , when the charging components 20 are applied to the road 2 (eg highway, general road), multiple sets of charging components 20 are arranged on the road 2 at intervals along the driving direction of the road 2 The base layer 3.

A power source 30 is electrically connected to the charging coil 22 of the charging assembly 20. In the embodiment of the present invention, the power source 30 is a power system.

The power source 30 can output an electric power to the charging coil 22, and the electric power causes the charging coil 22 to generate a magnetic field, and the composition of the magnetic conductive member 21 can enhance the magnetic field strength and transmit the magnetic field. When the induction coil 10 senses the change of the magnetic field transmitted by the magnetic conductive member 21, The induction coil 10 generates an induction current for charging the electric vehicle 1 .

In the embodiment of the present invention, the power source 30 provides alternating current to the charging coil 22 , and the alternating current can cause the charging coil 22 to generate magnetic field changes.

Therefore, the present invention outputs electric power to the charging coil 22 through the power source 30, so that the charging coil 22 generates a magnetic field, and the components of the magnetic conductive member 21 can enhance the magnetic field strength, so that the induction coil 10 disposed on the electric vehicle 1 can effectively induce induction to the magnetic field, so as to effectively generate an induced current for charging the electric vehicle 1 , so as to provide the electric vehicle 1 with the convenience of supplementing electric energy and continuous operation.

The above-mentioned embodiments are only used to illustrate the present invention, but not to limit the scope of the present invention. All the modifications or changes that do not violate the spirit of the present invention belong to the intended protection category of the present invention.

1: Electric vehicle 2: Road 3: base layer 4: Surface layer 5: Parking grid 10: Induction coil 20: Charging components 21: Magnetic parts 211: First End 212: Second End 22: Charging coil 30: Power source L: distance

Figure 1 is a schematic view of the appearance of the present invention. FIG. 2 is a schematic diagram of an erection embodiment of the present invention, showing that the induction coil is arranged on the electric vehicle, and the charging group is arranged on the road. FIG. 3 is a schematic diagram of an embodiment of the present invention applied to a parking lot. FIG. 4 is a schematic diagram of an embodiment of the present invention applied to a road.

10: Induction coil

20: Charging components

21: Magnetic parts

211: First End

212: Second End

22: Charging coil

30: Power source

Claims (10)

A wireless charging system applied to electric vehicle charging, comprising: an induction coil, which is arranged on the bottom of the electric vehicle; a charging assembly, which is disposed on the base of the road, the charging assembly has a magnetic conductive member and a charging coil, the magnetic conductive member is approximately cylindrical, and the charging coil is disposed on the outer periphery of the magnetic conductive member; and A power source is electrically connected to the charging coil of the charging assembly, the power source outputs an electric power to the charging coil, the electric power causes the charging coil to generate a magnetic field, and the magnetic conductive member enhances the magnetic field strength, when the induction coil induces the When the magnetic field transmitted by the magnetic conducting element changes, the induction coil generates an induction current that can be used to charge the electric vehicle. The wireless charging system according to claim 1, wherein the magnetic conductive member has a first end and a second end oppositely disposed, the first end is in contact with the surface of the road; the charging coil is sleeved on the magnetic conductive element the second end of the piece. The wireless charging system as claimed in claim 1, wherein the magnetic conductive member has a first end and a second end oppositely disposed, and the first end is spaced apart from the surface of the road by a distance smaller than the magnetic conductive member height; the charging coil is sleeved on the second end of the magnetic conducting element. The wireless charging system according to claim 3, wherein the distance is one twentieth to one tenth of the height of the magnetic conductive member. The wireless charging system according to any one of claims 1 to 3, wherein the magnetic conductive member has a cement mixture and a magnetic conductive mixture, and the weight ratio of the cement mixture to the magnetic conductive mixture is 3:4 to 3: between 8. The wireless charging system of claim 5, wherein the magnetically conductive mixture has a sand and a magnetically conductive powder, and the magnetically conductive powder accounts for between 5% and 65% of the volume of the magnetically conductive mixture. The wireless charging system of claim 6, wherein the magnetically conductive powder accounts for 8% to 35% of the volume of the magnetically conductive mixture. The wireless charging system according to claim 7, wherein the magnetically conductive powder accounts for 20% or 10% of the volume of the magnetically conductive mixture. The wireless charging system of claim 5, wherein the cement mixture has a water and a cement, and the weight ratio of the water to the cement is between 4:10 and 6:10. The wireless charging system according to claim 1, wherein the number of the charging components is plural; and the charging components are arranged at intervals along the driving direction of the road.

Images