Wireless charging device for electric vehicle

Abstract

The utility model relates to a wireless charging device for an electric automobile, and the device comprises a charging pedestal which is disposed at a parking space and is connected with a power supply; the bracket is arranged on a front auxiliary frame of the electric automobile; the wireless receiving assembly is arranged on the support and connected with a power battery of the electric automobile. Compared with the prior art, the charging gun does not need to be plugged, locked or unlocked, and abrasion of the charging device is avoided. When the electric automobile needs to be charged, the electric automobile only needs to be driven into the fixed parking space with the charging base, and the wireless receiver arranged on the front auxiliary frame of the electric automobile is aligned with the charging base located on the parking space, so that the wireless charging operation of the electric automobile can be completed. Dangerous in traditional manual charging operation is avoided, and charging convenience is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless charging of electric vehicles, and in particular to a wireless charging device for electric vehicles. Background Art

[0002] With the surge in new energy vehicles, there is also a demand for charging new energy vehicles. At present, the more common charging method for electric vehicles is contact charging, which transmits electrical energy through wires, but this charging method has many shortcomings. For example, during the use of electric vehicles, the charging plug needs to be frequently plugged in and out, which causes the contact parts such as the charging plug to age easily, sparks or wear, and to a certain extent, it is easy to be dangerous when charging electric vehicles. In addition, the entire plug-in charging process requires manual operation, but the degree of automation is low. Utility Model Content

[0003] The utility model provides a wireless charging device for an electric vehicle, which solves the technical problem that when the existing charging plug is plugged in and out for charging, the contact parts such as the charging plug are prone to aging, sparks or wear.

[0004] The utility model discloses a wireless charging device for an electric vehicle, which comprises a charging base, a bracket and a wireless receiving component. The charging base is arranged at a parking space and connected to a power source; the bracket is arranged on a front sub-frame of the electric vehicle; and the wireless receiving component is arranged on the bracket and connected to a power battery of the electric vehicle.

[0005] Furthermore, the charging base includes a charging shell and an integrated transmitting coil. The charging shell is arranged at the parking space; the integrated transmitting coil is arranged in the installation cavity of the charging shell and is connected to the power supply.

[0006] Furthermore, the charging housing is flush with the surface of the parking space.

[0007] Furthermore, the bracket is detachably arranged on the front subframe of the electric vehicle.

[0008] Furthermore, the wireless receiving component includes a wireless receiver, which is arranged on a bracket and connected to the power battery via a cable.

[0009] Furthermore, the wireless receiver includes a protective shell and an integrated receiving coil, wherein the protective shell is arranged on a bracket; the integrated receiving coil is arranged in an assembly cavity of the protective shell and is connected to the power battery through a cable.

[0010] Furthermore, a water cooling channel is provided in the protective shell, one end of the water cooling channel is connected to the water inlet pipe, and the other end of the water cooling channel is connected to the water outlet pipe.

[0011] Furthermore, the electric vehicle wireless charging device also includes a charging device communication controller, which is arranged on the bracket and electrically connected to the wireless receiver.

[0012] Furthermore, the wireless charging device for an electric vehicle also includes a distribution box, which is connected to the cable and is located at an end of the cable away from the wireless receiver.

[0013] The electric vehicle wireless charging device provided by the utility model can achieve the following technical effects:

[0014] 1. Compared with the existing technology, there is no need to plug, unplug, lock or unlock the charging gun, which avoids the wear of the charging device. When the electric vehicle needs to be charged, it only needs to drive the electric vehicle into a fixed parking space with a charging base, and align the wireless receiver set on the front subframe of the electric vehicle with the charging base on the parking space to complete the wireless charging operation of the electric vehicle. It avoids the danger of traditional manual charging operations and provides charging convenience.

[0015] 2. A water cooling channel is also provided on the protective shell of the wireless receiver, so that the wireless receiver can have a water cooling function, which can not only ensure the charging efficiency, but also reduce the risk of excessive temperature during charging.

[0016] The above general description and the following description are merely exemplary and explanatory and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements, and wherein:

[0018] Figure 1 It is a schematic diagram of an embodiment of a wireless charging device for an electric vehicle of the utility model;

[0019] Figure 2 This is a schematic diagram of an embodiment of a charging base of a wireless charging device for an electric vehicle of the utility model;

[0020] Figure 3 The utility model is a bottom view schematic diagram of an embodiment of a charging base of a wireless charging device for an electric vehicle.

[0021] Reference numerals:

[0022] 1. Charging base; 11. Charging shell; 12. Bottom plate; 2. Bracket; 3. Wireless receiver; 31. Protective shell; 41. Cable; 42. Water inlet pipe; 43. Water outlet pipe; 5. Charging device communication controller. DETAILED DESCRIPTION

[0023] In order to be able to understand the features and technical contents of the embodiments of the utility model in more detail, the implementation of the embodiments of the utility model is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the utility model. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0024] The terms "first", "second", etc. in the specification and claims of the embodiments of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the utility model described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0025] In the embodiments of the present utility model, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present utility model and its embodiments, and are not intended to limit the indicated devices, elements or components to have specific directions, or to be constructed and operated in specific directions. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0026] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the utility model can be understood according to specific circumstances.

[0027] Unless otherwise specified, the term "plurality" means two or more and "plurality" means two or more.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0029] like Figures 1 to 3 As shown, the utility model discloses a wireless charging device for electric vehicles, which includes a charging base 1, a bracket 2, and a wireless receiving component. The wireless charging device for electric vehicles disclosed in the utility model is applicable to underground parking lots or ground parking lots with fixed parking spaces, and the charging base 1 is installed on the parking space. The charging base 1 includes a charging shell 11, an integrated transmitting coil (not shown in the figure) and a bottom plate 12. The charging shell 11 has an installation cavity, the integrated transmitting coil is arranged in the installation cavity of the charging shell 11, the bottom plate 12 is arranged on the charging shell 11, and the bottom plate 12 is covered at the cavity opening of the installation cavity and the installation cavity is sealed. The integrated transmitting coil is connected to the power supply through a wire. A groove is arranged on the parking space, and the groove is adapted to the shape of the charging base 1. The charging base 1 is arranged in the groove of the parking space, and such a hidden arrangement can make the parking space more concise.

[0030] Preferably, the charging shell 11 of the charging base 1 is entirely located in the groove of the parking space, and the upper surface of the charging shell 11 is flush with the surface of the parking space, so as to avoid dust accumulation in the groove.

[0031] Preferably, the charging base 1 can also be electrically connected to the sending controller.

[0032] like Figure 1 As shown, the bracket 2 is made of aluminum alloy plate by bending and welding, and the bracket 2 is installed under the front subframe by bolts, so that the bracket 2 can be detachably arranged on the front subframe of the electric vehicle. The wireless receiving component is arranged on the bracket 2 and connected to the power battery of the electric vehicle.

[0033] Specifically, Figure 1 As shown, the wireless receiving component includes a wireless receiver 3, which is arranged on the bracket 2 and connected to the power battery through a cable 41. The wireless receiver 3 includes a protective shell 31 and an integrated receiving coil. The protective shell 31 has an assembly cavity. The integrated receiving coil is arranged in the assembly cavity of the protective shell 31, and the cavity opening of the assembly cavity is sealed. The integrated receiving coil is connected to the power battery through a cable 41. There is a water cooling channel in the protective shell 31, one end of the water cooling channel is connected to the water inlet pipe 42, and the other end of the water cooling channel is connected to the water outlet pipe 43.

[0034] Alternatively, if Figure 1As shown, the electric vehicle wireless charging device also includes a charging equipment communication controller 5, the English name of the charging equipment communication controller 5 is Supply Equipment Communication Controller, referred to as SECC. The charging equipment communication controller 5 is mounted on the bracket 2 with screws to achieve a detachable connection between the charging equipment communication controller 5 and the bracket 2. The charging equipment communication controller 5 is connected to the wireless receiver 3 through a wiring harness. By arranging the charging equipment communication controller 5 on the bracket 2, wireless communication between the electric vehicle and the transmitting controller is achieved.

[0035] When the electric vehicle enters a fixed parking space and is within the receivable range of the integrated transmitting coil and the integrated receiving coil, the transmitting controller is started, and communication between the charging device communication controller 5 and the electric vehicle begins. The electric vehicle sends the handshake signal, battery parameters, requested charging current, and voltage to the charging device communication controller 5 via a CAN signal. The charging device communication controller 5 translates the CAN signal into a PLC signal and transmits it to the transmitting controller via radio waves, thereby realizing communication between the electric vehicle and the transmitting controller.

[0036] Optionally, the electric vehicle wireless charging device further includes a distribution box, which can be a high-voltage distribution box, the English name of which is Power Distribution Unit, or PDU for short. The distribution box is connected to the cable 41 , and is disposed at one end of the cable 41 away from the wireless receiver 3 .

[0037] The distribution box is located between the cable 41 and the power battery. The distribution box electrically connects the fuses, contactors and other automotive components through the busbar and wiring harness, providing charge and discharge control and power-on protection for the high-voltage system. The current in the cable 41 first passes through the matching box before entering the power battery.

[0038] Application scenario of an exemplary embodiment:

[0039] like Figures 1 to 3 As shown, when an electric car needs to be charged, the electric car only needs to drive into a fixed parking space provided with a charging base 1, so that the wireless receiver 3 on the electric car is aligned with the charging base 1 located at the parking space. The integrated transmitting coil of the charging base 1 converts electrical energy into electromagnetic waves, and transmits the electromagnetic waves to the wireless receiver 3. The wireless receiver 3 receives the electromagnetic waves, and converts the electromagnetic waves back into electrical energy through the integrated receiving coil, and transmits the electrical energy to the power battery for storage through the cable 41. At the same time, the coolant flows from the water inlet pipe 42 into the water cooling channel of the protective housing 31, and flows out from the water outlet pipe 43, so that the wireless receiver 3 can be cooled, which can not only ensure the charging efficiency, but also reduce the risk of excessive temperature during charging.

[0040] The above description and the accompanying drawings fully illustrate the embodiments of the utility model so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the utility model are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. A wireless charging device for an electric vehicle, characterized in that: include: A charging base (1) is arranged at the parking space and connected to a power source; A bracket (2) is arranged on the front subframe of the electric vehicle; The wireless receiving component is arranged on the bracket (2) and is connected to the power battery of the electric vehicle.

2. The wireless charging device for electric vehicles according to claim 1, characterized in that: The charging base (1) comprises: A charging housing (11) is arranged at the parking space; An integrated transmitting coil is arranged in the installation cavity of the charging housing (11) and is connected to a power source.

3. The wireless charging device for electric vehicles according to claim 2, characterized in that: The charging housing (11) is flush with the surface of the parking space.

4. The wireless charging device for electric vehicles according to claim 3, characterized in that: The bracket (2) is detachably arranged on the front sub-frame of the electric vehicle.

5. The wireless charging device for electric vehicles according to claim 4, characterized in that: The wireless receiving component comprises: The wireless receiver (3) is arranged on the bracket (2) and is connected to the power battery via a cable (41).

6. The wireless charging device for electric vehicles according to claim 5, characterized in that: The wireless receiver (3) comprises: A protective shell (31) is arranged on the bracket (2); The integrated receiving coil is arranged in the assembly cavity of the protective housing (31) and is connected to the power battery via a cable (41).

7. The wireless charging device for electric vehicles according to claim 6, characterized in that: A water cooling channel is provided in the protective shell (31), one end of the water cooling channel is connected to the water inlet pipe (42), and the other end of the water cooling channel is connected to the water outlet pipe (43).

8. The wireless charging device for electric vehicles according to claim 7, characterized in that: Also includes: A charging device communication controller (5) is arranged on the bracket (2) and is electrically connected to the wireless receiver (3).

9. The wireless charging device for electric vehicles according to claim 8, characterized in that: Also includes: A distribution box is connected to the cable (41) and is located at an end of the cable (41) away from the wireless receiver (3).

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