Vertically arranged wireless charging battery box

Abstract

The application belongs to the technical field of battery boxes, and provides a vertically arranged wireless charging battery box, which comprises a tray part, a frame part, a bottom guard plate, a wireless receiver rectifier and a wireless receiver coil module, the frame part is connected around the tray part, the bottom guard plate is installed at the lower part of the tray part, the wireless receiver coil module is arranged in the bottom guard plate, the wireless receiver rectifier is arranged on the tray part, the wireless receiver rectifier is electrically connected with the wireless receiver coil module through a wire harness, and the wireless receiver coil module and the wireless receiver rectifier are arranged in a vertical direction in the battery box. The application has the advantages that the wireless charging receiver is integrated into the battery box, the cost is greatly reduced, the integration of the wireless receiver and the battery box reduces the cost of the wireless charging module, provides a wider installation space, and improves the added value of the battery box.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery boxes, and relates to a vertically arranged wireless charging battery box. BACKGROUND

[0002] In order to save energy and reduce environmental pollution, electric vehicles have been vigorously promoted in countries all over the world. Due to the limitations of battery capacity and charging infrastructure, the charging problem has become the main bottleneck problem in the development process of electric vehicles. Wireless charging technology can solve the interface limitations and safety problems of traditional conductive charging and gradually develop into the main way of charging electric vehicles. However, static wireless charging and wired charging also have problems such as frequent charging, short driving range, large battery consumption and high cost. Especially for public transportation vehicles such as electric buses, continuous driving ability is particularly important. In this background, dynamic wireless charging technology for electric vehicles emerges as the times require, which provides real-time energy supply for electric vehicles in motion through a non-contact mode.

[0003] The wireless charging technology for electric vehicles transmits electric energy to the vehicle receiving end electric energy pickup mechanism running within a certain range on the ground in the form of high-frequency alternating magnetic field through the power supply rail buried in the ground, and then supplies power to the vehicle-mounted energy storage device, so that the electric vehicle can carry a small number of battery packs, prolong the driving range, and the electric energy supply is more safe and convenient. The main parameters of dynamic wireless power supply technology include electric energy transmission distance, power, efficiency, coupling mechanism side shift adaptability, electromagnetic compatibility, etc. Therefore, developing a dynamic wireless power supply system with high power, high efficiency, strong side shift adaptability, low electromagnetic radiation and moderate cost has become the main research focus of research institutions at home and abroad.

[0004] The development of new energy industry, especially the rapid growth of pure electric vehicles, will inevitably put forward higher requirements for the diversification and convenience of electric vehicle charging. Wireless charging technology, as a new technology, is mainly used in the charging of small power devices such as mobile phones, computers and MP3 players, and is a completely new concept in the field of electric vehicles. With the maturity of wireless charging technology, electric vehicles will be the most potential market for wireless charging equipment. Existing wireless receivers for vehicles are mostly installed in the front subframe, which has great limitations in design space, especially for the laying area of the coil. For future wireless charging applications with larger power and larger coils, the design space is more limited, and the shell of the vehicle wireless receiver, especially the coil tray, is mostly made of plastic, which has poor impact resistance. SUMMARY

[0005] The present application aims at the current situation of the prior art, and provides a vertically arranged wireless charging battery box, which integrates a wireless charging receiver into the battery box, fully utilizes a wider design space of the battery box in the XY direction, and greatly improves the added value of the new energy battery box.

[0006] The technical scheme adopted by the present application to solve the above technical problem is a vertically arranged wireless charging battery box, characterized by comprising a tray part, a frame part, a bottom guard plate, a wireless receiver rectifier and a wireless receiver coil module, the frame part is connected around the tray part, the bottom guard plate is installed at the lower part of the tray part, the wireless receiver coil module is arranged in the bottom guard plate, the wireless receiver rectifier is arranged on the tray part, the wireless receiver rectifier is electrically connected with the wireless receiver coil module through a wire harness, and the wireless receiver coil module and the wireless receiver rectifier are arranged in a vertical direction in the battery box.

[0007] In the above-mentioned vertically arranged wireless charging battery box, the wireless receiver coil module comprises a coil tray, a coil, a ferrite and a wireless charging water cooling plate, the coil is located in the coil tray, the ferrite is located at the upper part of the coil, the wireless charging water cooling plate is located at the upper part of the coil tray and filled with heat-conducting glue therebetween, and the whole module composed of the coil tray, the coil, the ferrite and the wireless charging water cooling plate is installed between the bottom guard plate and the tray part.

[0008] In the above-mentioned vertically arranged wireless charging battery box, the bottom guard plate has a containing groove for placing the wireless receiver coil module.

[0009] As a second way, in the above-mentioned vertically arranged wireless charging battery box, a tray water cooling plate is connected to the lower surface of the tray part, and the wireless receiver coil module is installed between the lower part of the tray water cooling plate and the bottom guard plate.

[0010] In the above-mentioned vertically arranged wireless charging battery box, the wireless receiver coil module comprises a coil tray, a coil and a ferrite, the coil is located in the coil tray, the ferrite is located at the upper part of the coil, and a tray water cooling plate is located above the wireless receiver coil module, and the wireless receiver coil module, the tray part and the tray water cooling plate are filled with heat-conducting glue therebetween.

[0011] In the above-mentioned vertically arranged wireless charging battery box, EPDM sealing pads are arranged on the two sides of the coil tray and the tray part.

[0012] As a third way, in the above-mentioned vertically arranged wireless charging battery box, a tray water cooling plate is connected to the lower surface of the tray part, and the wireless receiver coil module is installed between the lower part of the tray water cooling plate and the bottom guard plate.

[0013] In the vertical arrangement wireless charging battery box, the wireless receiver coil module comprises a coil and a ferrite, the coil is embedded in the bottom guard plate, the ferrite is located on the upper part of the coil, the tray water cooling plate is located above the wireless receiver coil module, and the wireless receiver coil module, the bottom guard plate and the tray water cooling plate are filled with heat-conducting glue.

[0014] In the vertical arrangement wireless charging battery box, the wireless receiver coil module comprises a coil and a ferrite, the coil is embedded in the bottom guard plate, the ferrite is located on the upper part of the coil, the tray water cooling plate is located above the wireless receiver coil module, and the wireless receiver coil module, the bottom guard plate and the tray water cooling plate are filled with heat-conducting glue.

[0015] Compared with the prior art, the advantages of the present application are that the wireless charging receiver is integrated into the battery box, the battery box XY is fully utilized to a wider design space, and the added value of the new energy battery box is greatly improved. The cooling aspect of the present application cooperates with the brazed water cooling plate of the battery box, and the heat of the battery cell module and the wireless receiver coil module is cooled simultaneously by using the water cooling plate. The composite material bottom guard plate of the battery box is used in the structure aspect, the strength performance of the bottom guard plate is utilized, and the bottom guard plate can also be used as the installation carrier of the wireless receiver coil module. Therefore, for most brazed water cooling plate battery boxes, only the composite material bottom guard plate needs to be replaced, and the overall structural compatibility is high. In terms of cost, the shell and water cooling of the wireless charging module are omitted, which greatly reduces the cost. The integration of the wireless receiver and the battery box reduces the cost of the wireless charging module, provides a wider installation space, and improves the added value of the battery box. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a modular integrated exploded structure diagram of the vertical arrangement wireless charging battery box;

[0017] Figure 2 is Figure 1 a cross-sectional structure diagram after assembly;

[0018] Figure 3 is Figure 1 a structure diagram of the wireless receiver coil module in

[0019] Figure 4 is a coil non-embedded integrated exploded structure diagram of the vertical arrangement wireless charging battery box;

[0020] Figure 5 is Figure 4 a cross-sectional structure diagram after assembly;

[0021] Figure 6 is Figure 4 a structure diagram of the wireless receiver coil module in

[0022] Figure 7is the coil embedded integrated exploded structure schematic diagram of the vertical arrangement wireless charging battery box;

[0023] Figure 8 is Figure 7 the assembled cross-section structure schematic diagram;

[0024] Figure 9 is Figure 7 the structure schematic diagram of the wireless receiver coil module in DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0026] In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application.

[0027] In the drawings, tray part 100; frame part 200; bottom guard plate 300; containing groove 301; wireless receiver rectifier 400; wireless receiver coil module 500; coil tray 501; coil 502; ferrite 503; wireless charging water cooling plate 504; heat-conducting glue 600; EPDM sealing gasket 700; tray water cooling plate 800.

[0028] Embodiment 1

[0029] As Figure 1As shown, the vertically arranged wireless charging battery box includes a tray piece 100, a frame piece 200, a bottom guard plate 300, a wireless receiver rectifier 400, and a wireless receiver coil module 500. The frame piece 200 is connected around the tray piece 100, the bottom guard plate 300 is installed at the lower part of the tray piece 100, the bottom guard plate 300 can be made of composite material, the wireless receiver coil module 500 is arranged in the bottom guard plate 300, the wireless receiver rectifier 400 is arranged on the tray piece 100, the wireless receiver rectifier 400 is electrically connected with the wireless receiver coil module 500 through a wire harness, and the wireless receiver coil module 500 and the wireless receiver rectifier 400 are arranged in a vertical direction in the battery box. The wireless charging of the present patent is mainly composed of the wireless receiver rectifier 400 and the wireless receiver coil module 500. The wireless receiver coil module 500 receives the magnetic field lines of the ground transmitting end to generate electric energy, which is transmitted to the BMS electric control system of the battery box in the form of direct current after voltage adjustment by the rectifier. The overall arrangement is vertically arranged in the battery box, that is, the wireless receiver coil module 500 is arranged in the bottom guard plate 300, and the wireless receiver rectifier 400 is separately arranged above it. According to the different integration degrees from low to high, the vertical direction of the present patent can be further divided into the following three types: modular integration, coil non-buried integration, and coil buried integration. Whether the tray piece 100 of the battery box module integrates water cooling determines whether the module and the wireless receiver coil module 500 can share the water cooling system.

[0030] For the modular integration mode, as shown in Figure 2 and Figure 3 The wireless receiver coil module 500 includes a coil tray 501, a coil 502, a ferrite 503, and a wireless charging water cooling plate 504. The coil 502 is located in the coil tray 501, the ferrite 503 is located on the upper part of the coil 502, and the wireless charging water cooling plate 504 covers the upper part of the coil tray 501 and is filled with heat-conducting glue 600 between them. The heat-conducting glue 600 mainly plays a dual role of connection and heat conduction. The overall module composed of the coil tray 501, the coil 502, the ferrite 503, and the wireless charging water cooling plate 504 is installed between the bottom guard plate 300 and the tray piece 100. The bottom guard plate 300 has a containing groove 301 for placing the wireless receiver coil module 500. Here, the present patent reserves the installation space of the wireless receiver coil module 500 on the bottom guard plate 300. After the wireless receiver coil module 500 is taken as a small assembly, the coil tray 501 is separately glued on the bottom guard plate 300. The wireless receiver rectifier 400 is separately arranged above the coil 502. Since the tray piece 100 of the battery box itself does not integrate water cooling, the wireless receiver coil module 500 still has the wireless charging water cooling plate 504, and the cooling water source of the wireless charging water cooling plate 504 is provided by the battery box end.

[0031] Embodiment 2

[0032] For the coil non-buried integration mode, as shown in Figure 4 , Figure 5 and Figure 6 , the lower surface of the tray part 100 is connected with a tray water cooling plate 800, the wireless receiver coil module 500 is installed between the lower part of the tray water cooling plate 800 and the bottom guard plate 300, the wireless receiver coil module 500 includes a coil tray 501, a coil 502 and a ferrite 503, the coil 502 is located in the coil tray 501, the ferrite 503 is located on the upper part of the coil 502, the tray water cooling plate 800 is located above the wireless receiver coil module 500, the wireless receiver coil module 500, the tray part 100 and the tray water cooling plate 800 are filled with heat-conducting glue 600, the coil tray 501 and the two sides of the tray part 100 are provided with EPDM sealing pads 700, here the EPDM sealing pads 700 can ensure the sealing performance of the two sides, here the non-buried mode in the embodiment refers to that the coil is not buried in the bottom guard plate 300, this integration scheme still retains the coil tray 501 of the wireless receiver coil module 500, the coil tray 501 is glued to the bottom guard plate 300, but the whole cancels the upper part of the wireless charging water cooling plate 504, and instead uses the tray water cooling plate 800 of the battery box, here the tray water cooling plate 800 can use a brazed water cooling plate, that is, the module of the battery box and the wireless receiver coil module 500 share a tray water cooling plate 800 for cooling, the wire harness connection is adopted between the wireless receiver rectifier 400 and the wireless receiver coil module 500, and they both use the tray water cooling plate 800 of the battery box for cooling.

[0033] Embodiment 3

[0034] For the coil buried integration mode, as shown in Figure 7 , Figure 8 and Figure 9As shown, the tray piece 100 is connected with a tray water cooling plate 800 on the lower surface, the wireless receiver coil module 500 is installed between the lower part of the tray water cooling plate 800 and the bottom guard plate 300, the wireless receiver coil module 500 includes a coil 502 and a ferrite 503, the coil 502 is embedded in the bottom guard plate 300, the ferrite 503 is located on the upper part of the coil 502, the tray water cooling plate 800 is located above the wireless receiver coil module 500, the conductive glue 600 is filled between the wireless receiver coil module 500, the bottom guard plate 300 and the tray water cooling plate 800, the coil tray 501 is provided with an EPDM sealing gasket 700 on both sides of the tray piece 100, the embedded type means that the coil 502 is embedded in the bottom guard plate 300, in the process of forming the bottom guard plate 300, the coil 502 is also embedded in the bottom guard plate 300 to form an integrated body, this integrated scheme not only cancels the coil tray 501 of the wireless receiver coil module 500, but also cancels the upper part of the wireless charging water cooling plate 504, and instead uses the tray water cooling plate 800 of the battery box for cooling, that is, the module of the battery box and the wireless receiver coil module 500 share a tray water cooling plate 800 for cooling, the wire harness is connected between the wireless receiver rectifier 400 and the wireless receiver coil module 500, and they are cooled by borrowing the tray water cooling plate 800 of the battery box, the strength performance of the bottom guard plate 300 is played, and the bottom guard plate 300 can also be used as the installation carrier of the wireless receiver coil module 500. Therefore, for most brazing water cooling plate battery boxes, only the composite bottom guard plate 300 needs to be replaced, the overall structure has high compatibility, in terms of cost, the shell and the water cooling of the wireless charging module are omitted, and the cost is greatly reduced.

[0035] In summary, the advantages of the high strength, complex molding and no magnetic field interference of the battery box bottom guard plate 300 are played, the receiving end module of the wireless charging is integrated, through the integration of the wireless charging module and the battery box, the cost of the wireless charging module is reduced, a wider installation space is provided, and the added value of the battery box is improved.

[0036] The specific embodiments described herein merely illustrate the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the scope defined by the spirit of the present application.

Claims

1. A vertically arranged wireless charging battery box, characterized by, The application relates to a wireless receiver module, which comprises a tray part, a frame part, a bottom guard plate, a wireless receiver rectifier and a wireless receiver coil module, the frame part is connected to the four sides of the tray part, the bottom guard plate is installed at the lower part of the tray part, the wireless receiver coil module is arranged in the bottom guard plate, the wireless receiver rectifier is arranged on the tray part, the wireless receiver rectifier is electrically connected with the wireless receiver coil module through a wire harness, and the wireless receiver coil module and the wireless receiver rectifier are arranged in a vertical direction in the battery box; the wireless receiver coil module comprises a coil tray, a coil, a ferrite and a wireless charging water cooling plate, the coil is arranged in the coil tray, the ferrite is arranged at the upper part of the coil, the wireless charging water cooling plate is arranged at the upper part of the coil tray and filled with heat-conducting glue, and the whole module composed of the coil tray, the coil, the ferrite and the wireless charging water cooling plate is installed between the bottom guard plate and the tray part; the bottom guard plate is provided with a containing groove for placing the wireless receiver coil module; and the lower surface of the tray part is connected with a tray water cooling plate, and the wireless receiver coil module is installed between the lower part of the tray water cooling plate and the bottom guard plate.

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