阅读说明：本技术 无线充电设备的异物清理装置 (foreign matter cleaning device of wireless charging equipment ) 是由 王哲 贺凡波 陆钧 葛俊杰 马俊超 于 2019-08-26 设计创作，主要内容包括：本申请公开了一种无线充电设备的异物清理装置,包括：覆盖单元和驱动单元；送电单元设置在固定面；覆盖单元具有外框,以及多个相邻设置的转动面,转动面一侧为自由端,另一侧为连接端,连接端与外框转动连接；相邻的两个转动面中,其中一个转动面的自由端朝向另一个转动面的连接端；驱动单元位于覆盖单元底侧,依次驱动转动面转动。本发明的无线充电设备的异物清理装置,可以通过转动面依次转动,实现对异物的清理。该转动面具有多组,工作时依次转动,不需要过大的空间,就能实现对杂异物的清理。在一些实施例中,还可以直接通过送电单元获取电力,驱动工作,节约了额外的布线、电源成本,也避免了额外的设备对电磁场的影响。(The application discloses wireless battery charging outfit's foreign matter cleaning device includes: a covering unit and a driving unit; the power transmission unit is arranged on the fixed surface; the covering unit is provided with an outer frame and a plurality of rotating surfaces which are adjacently arranged, one side of each rotating surface is a free end, the other side of each rotating surface is a connecting end, and the connecting ends are rotatably connected with the outer frame; the free end of one of the two adjacent rotating surfaces faces the connecting end of the other rotating surface; the driving unit is positioned at the bottom side of the covering unit and sequentially drives the rotating surface to rotate. The foreign matter cleaning device of the wireless charging equipment can realize the cleaning of the foreign matters through the sequential rotation of the rotating surfaces. The rotating surfaces are provided with a plurality of groups, rotate in sequence during working, and can clean foreign matters without needing overlarge space. In some embodiments, the power can be directly obtained through the power transmission unit to drive the power transmission unit to work, so that extra wiring and power supply cost are saved, and the influence of extra equipment on an electromagnetic field is avoided.)

1. The utility model provides a wireless battery charging outfit's foreign matter cleaning device which characterized in that includes:

a covering unit (2) and a driving unit; the covering unit (2) is used for covering the power transmission unit (1) of the wireless charging equipment; wherein the content of the first and second substances,

The covering unit (2) is provided with an outer frame and a plurality of rotating surfaces (3) which are adjacently arranged, one side of each rotating surface (3) is a free end (31), the other side of each rotating surface is a connecting end (32), and the connecting ends (32) are rotatably connected with the outer frame; the free end (31) of one of the two adjacent rotating surfaces (3) faces the connecting end (32) of the other rotating surface;

The driving unit is positioned at the bottom side of the covering unit (2) and sequentially drives the rotating surface (3) to rotate.

2. the foreign matter cleaning apparatus of a wireless charging device according to claim 1,

the drive unit has a power receiving unit (4), and the power receiving unit (4) is supplied with power from the power transmission unit (1).

3. The foreign matter cleaning apparatus of a wireless charging device according to claim 1,

The driving unit is provided with a curve slide rail (5) and a top block (6); wherein the content of the first and second substances,

The curved slide rail (5) is arranged at the bottom side of the covering unit (2), and the curved slide rail (5) is provided with a plurality of wave crests and wave troughs;

The ejecting block (6) is sleeved outside the curve sliding rail (5) in a sliding mode, and when the ejecting block (6) slides to one wave crest, the ejecting block abuts against one corresponding rotating surface (3) to rotate.

4. The foreign matter cleaning apparatus of a wireless charging device according to claim 3,

One of said wave crests being located between said free end (31) and said connecting end (32) of one of said rotation surfaces (3).

5. The foreign matter cleaning apparatus of a wireless charging device according to claim 3,

The driving unit is also provided with a guide rail (7), a lead block (8), a traction cable (9) and an electromagnet (10); wherein the content of the first and second substances,

The extending direction of the guide rail (7) is the same as that of the curved slide rail (5);

The lead block (8) is arranged on the guide rail (7) in a sliding manner;

The traction cable (9) is connected with the lead block (8) and the jacking block (6);

the electromagnet (10) is arranged at one end or two ends of the guide rail (7) to drive the lead block (8) to slide on the guide rail (7).

6. the foreign matter cleaning apparatus of a wireless charging device according to claim 5,

the electromagnet (10) is arranged at two ends of the guide rail (7), the jacking block (6) is a magnet, and the electromagnet (10) drives the lead block (8) to slide on the guide rail (7) through magnetic pole change.

7. the foreign matter cleaning apparatus of a wireless charging device according to claim 1,

The driving unit is provided with a plurality of cams (11), each cam is positioned below one rotating surface (3), in two adjacent cams (11), the angle of the latter cam (11) lags the angle of the former cam (11), and the rotating speed of each cam (11) is the same.

8. The foreign matter cleaning apparatus of a wireless charging device according to claim 7,

each cam (11) is provided with a driving tooth;

The drive unit also has a chain that meshes with the drive teeth.

Technical Field

the invention relates to a charging technology, in particular to a foreign matter cleaning device of wireless charging equipment.

background

With the enhancement of environmental awareness and the promotion of related policies, the acceptance and popularity of electric vehicles are getting better and better, the number of electric vehicles is rapidly increasing, and the problems accompanying the increase are also increasing, and one of the problems occurring when charging vehicles is one of the problems.

At present, the charging mode of the electric vehicle is generally divided into wired charging and wireless charging. Wired charging requires a charging plug to be inserted into the charging cavity of the vehicle. In this way, the charging plug is heavy and inconvenient to operate and use. The cables for power transmission are more susceptible to flexibility, and there is a possibility that the cables may have safety problems such as leakage.

The wireless charging technology can solve the problem well, but the current wireless charging still has the problem that needs to be solved urgently. One of the most important is that foreign matter interference may exist between the power transmitting unit and the power receiving unit of the wireless charging apparatus.

As is well known, in wireless charging, a power transmission unit and a power reception unit are provided so as to face each other, and for example, the power transmission unit is installed on the ground of a parking lot, a vehicle is moved above the power transmission unit, and the power reception unit is aligned with the power transmission unit to perform charging.

However, if foreign matter exists between the two units, the charging efficiency is lowered, and if the foreign matter is metal, the foreign matter is affected by a magnetic field to generate heat, thereby causing a safety hazard. Particularly, in the charging process of the vehicle, metal foreign matters enter, and huge hidden troubles are brought to charging safety.

Disclosure of Invention

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a foreign matter cleaning device of a wireless charging device, which can clean foreign matters, avoid safety accidents, and especially can uninterruptedly charge a vehicle.

in order to solve the above problems, the present invention provides a foreign matter cleaning device for a wireless charging apparatus, including: a covering unit and a driving unit; the covering unit covers the power transmission unit of the wireless charging equipment; the covering unit is provided with an outer frame and a plurality of rotating surfaces which are adjacently arranged, one side of each rotating surface is a free end, the other side of each rotating surface is a connecting end, and the connecting ends are rotatably connected with the outer frame; the free end of one of the two adjacent rotating surfaces faces the connecting end of the other rotating surface; the driving unit is positioned at the bottom side of the covering unit and sequentially drives the rotating surface to rotate.

Preferably, the drive unit has a power receiving unit to which power is supplied by the power transmitting unit.

preferably, the driving unit has a curved slide rail and a top block; the curved slide rail is arranged at the bottom side of the covering unit and is provided with a plurality of wave crests and wave troughs; the ejecting block is sleeved outside the curve sliding rail in a sliding mode, and when the ejecting block slides to one wave crest, the ejecting block abuts against one corresponding rotating surface to rotate.

Preferably, one of said wave crests is located between said free end and said attachment end of one of said rotational surfaces.

Preferably, the driving unit is also provided with a guide rail, a lead block, a traction cable and an electromagnet; the extending direction of the guide rail is the same as that of the curved slide rail; the lead block is arranged on the guide rail in a sliding manner; the traction cable is connected with the lead block and the jacking block; the electromagnets are arranged at one end or two ends of the guide rail so as to drive the lead blocks to slide on the guide rail.

preferably, the electromagnets are arranged at two ends of the guide rail, the top block is a magnet, and the electromagnets drive the lead block to slide on the guide rail through magnetic pole change.

preferably, the driving unit has a plurality of cams, each cam is located below one of the rotating surfaces, and in two adjacent cams, the angle of the latter cam lags the angle of the former cam, and the rotating speed of each cam is the same.

Preferably, each cam is formed with a driving tooth; the drive unit also has a chain that meshes with the drive teeth.

According to the foreign matter cleaning device of the wireless charging equipment, the foreign matters can be cleaned through the sequential rotation of the rotating surfaces. The rotating surfaces are provided with a plurality of groups, rotate in sequence during working, and can realize the cleaning of foreign matters without needing overlarge space. The foreign matter is cleared up, so that potential safety hazards are avoided on one hand, the charging stop cannot be caused on the other hand, and the charging efficiency and the normal charging use of the vehicle are guaranteed. In some embodiments, the power can be directly obtained through the power transmission unit to drive the power transmission unit, so that extra wiring and power supply costs are saved, and influence of an electromagnetic field on extra equipment or influence on charging work is avoided.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

Fig. 1 is a reference diagram illustrating a usage status of a foreign object cleaning apparatus of a wireless charging device according to the present invention;

Fig. 2 is a schematic diagram of a driving unit and a rotating surface in the foreign matter removing device of the wireless charging device according to the present invention;

Fig. 3 is a schematic view of a rotating surface of the foreign matter cleaning device of the wireless charging device according to the present invention;

Fig. 4A is a schematic view illustrating a driving unit of the foreign object removing device of the wireless charging device according to the present invention using a top block;

Fig. 4B is another schematic diagram of the driving unit of the foreign object removing device of the wireless charging apparatus according to the present invention, which employs a top block;

Fig. 5 is a schematic view illustrating a cam adopted as a driving unit in the foreign matter removing device of the wireless charging apparatus according to the present invention;

fig. 6 is a schematic view of a cover film and a collection box in the foreign matter cleaning device of the wireless charging device of the present invention.

Description of reference numerals:

The power transmission device comprises a power transmission unit 1, a covering unit 2, a rotating surface 3, a power receiving unit 4, a curved slide rail 5, a top block 6, a guide rail 7, a lead block 8, a traction cable 9, an electromagnet 10, a cam 11, a collection box 12, a free end 31 and a connecting end 32.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

the invention discloses a foreign matter cleaning device of wireless charging equipment, and the equipment comprises a covering unit 2 and a driving unit, which are shown in figure 1.

The covering unit 2 covers the power transmission unit 1 to clean foreign matters, and the covering unit 2 is powered by the driving unit to realize the cleaning function.

The power transmission unit 1 is a device used in wireless charging of an automobile, and is generally installed on a fixed surface. For example in a parking space of a parking lot (parking garage). The operation and installation of the power transmission unit 1 will be known to those skilled in the art. For convenience of description, the ground is used as an alternative to the fixed surface.

The power transmission unit 1 is installed on the ground, and generally, in order not to affect the traveling of the vehicle, a pit for installing the power transmission unit 1 may be formed on the ground so that the working surface of the power transmission unit 1 is substantially flush with the ground. Other related structures of the power transmission unit 1, such as a circuit and a fixing structure, may be disposed in the recess, and how to dispose the structure is not described in detail in this application.

When the vehicle-mounted power receiving unit is used, the vehicle-mounted power receiving unit is mounted on a chassis or other positions of the vehicle, the vehicle runs to the corresponding position, and the vehicle-mounted power receiving unit obtains electric power from the power transmission unit 1 to charge the vehicle. Generally, a certain clearance is provided between the vehicle chassis and the power transmission unit 1.

The covering unit 2 of the present invention covers the power transmission unit 1, and the thickness of the covering unit 2 is relatively thin, and is preferably 10cm or less, more preferably 1cm or less, and the specific thickness can be selected according to the actual situation, such as strength requirement, weight requirement, or cost requirement. The covering unit 2 plays a role in protecting the power transmission unit 1, such as water resistance, impact resistance and the like, and meanwhile, the covering unit 2 can also realize a function of cleaning foreign matters on the surface under the cooperation of the driving unit. Specific implementations are described below. The cover unit 2 can be directly mounted on the existing power transmission unit 1.

The above-mentioned covering unit 2 has an outer frame, and a plurality of rotating planes 3, and referring to fig. 1 and 2, the rotating planes 3 have a plurality, each rotatably connected to the outer frame of the covering unit 2. The outer frame may be fixedly connected to the power transmission unit 1 or may be directly fixed to the ground. The outer frame may be a complete frame structure, or may be a plurality of independent units provided for each rotating surface 3. Whether a complete structure or a separate unit, may be suitable for use in the present invention as long as the connection to the rotating surface 3 is achieved.

Generally, the whole covering unit 2, that is, the covering unit includes the outer frame and the rotating surface 3, does not adopt metal materials, so as to avoid influencing the efficiency of wireless charging. In addition, as may be mentioned later, the parts disposed above the covering unit 2, or disposed above the power transmission unit 1, other than the necessary work (such as the power receiving unit 4) are also substantially non-metallic materials. As the non-metallic material, plastics such as phenolics, that is, bakelite, can be used. Of course, other non-metal materials can be selected according to the requirement, and the influence on the charging process is avoided.

The structure and connection of the rotary surface 3 will be described in detail below.

The two sides of the rotating surface 3 are respectively a free end 31 and a connecting end 32. The plane of rotation is generally of rectangular configuration in projection, with the free end 31 and the attached end 32 being located on opposite longer sides of the rectangular configuration as shown in fig. 3.

The connection end 32 is rotatably connected to the outer frame, and the connection can be achieved using a rotating shaft, for example. The free end 31 of one of the adjacent rotary surfaces 3 faces the connecting end 32 of the other rotary surface. That is, the rotation surfaces 3 are arranged in parallel with the longer side as the adjacent side. Referring to fig. 3, for convenience of illustration, particulate noise is filled at the free end 31 and not filled at the attached end 32 to more clearly show the two locations.

The arrangement mode can ensure that the foreign matters can be moved step by step and finally removed when the rotating surface 3 rotates in sequence. That is, after the first rotating surface 3 rotates, the upper foreign matter is dumped onto the second rotating surface 3, and the foreign matter is removed from the working area of the power transmission unit 1 sequentially to the last rotating surface 3. Naturally, in order to achieve the removal of foreign bodies from the working area, the area of the cover unit 2, or the area covered by the rotating surface 3 provided thereon, exceeds the working area.

the rotation of the rotating surface 3 is powered by a driving unit. And the power required for the drive unit may be taken from an external power source. In a more preferred embodiment, the power can be taken directly from the power transmission unit 1, i.e. the driving unit has a power receiving unit 4, the power receiving unit 4 being powered directly by the power transmission unit 1. Therefore, the use of an additional power supply can be reduced or avoided, the cost can be saved, and the interference of an external power supply to the wireless charging equipment can be avoided. Fig. 4A and 4B illustrate a power receiving unit 4 that supplies power in cooperation with other structures.

it should be understood that the power receiving unit 4 is a power source of the driving unit and does not affect the use of the vehicle-mounted power receiving unit. That is, the power transmission unit 1 can charge the vehicle and supply power to the drive unit while the two are in conflict with each other and do not affect (or have a small effect on) each other.

In a specific implementation, the power transmission unit 1 may be a single unit and supplies power to both the power receiving unit 4 and the vehicle-mounted power receiving unit, or may be an additional independent area and supplies power to the power receiving unit 4 separately.

An alternative embodiment of the drive unit is described below.

the drive unit has a curved slide rail 5 and a top block 6, see fig. 1 and 2. The ejector block 6 is slidably sleeved on the curved slide rail 5, realizes curved motion along the curved slide rail 5 and abuts against the rotating surface to rotate through the curved motion.

The curved slide rail 5 is arranged at the bottom side of the covering unit 2, and the curved slide rail 5 is provided with a plurality of wave crests and a plurality of wave troughs; and when the top block 6 slides to a wave crest, the top block abuts against a corresponding rotating surface 3 to rotate.

Typically a wave crest is located between the free end 31 and the connecting end 32 of one of the rotation surfaces 3. That is to say that each rotation surface 3 has a peak which corresponds uniquely to it. In the process that the top block 6 slides from the wave trough to the wave crest, the rotating surface 3 is gradually pushed to move, and the top block is separated from pushing the rotating surface 3 when sliding from the wave crest to the wave trough. Due to the influence of the position of the curved slide rail 5 and the shape of the top block 6, the rotating surface 3 can be pushed to rotate in the process that the wave crest slides to the wave trough, but at least when the top block 6 reaches the wave trough, the rotating surface is separated from the contact with the rotating surface 3.

by the mechanism, no matter which direction the top block 6 slides along the curve slide rail 5, the fixed rotation sequence of the rotating surface 3 can be realized.

How the driving of the top block 6 is realized will be explained below.

In the first method, as shown in fig. 4A, electromagnets 10 are respectively disposed on both sides of the curved slide rail 5, and a magnet is disposed on the top block 6, or the top block 6 itself is a magnet. The position of the top block 6 is driven by the change of the magnetic field of the electromagnet 10.

In the second method, an electromagnet 10 is arranged on one side of the curved sliding rail 5, a magnet is arranged on the top block 6, or the top block 6 is made of a material capable of being attracted by the magnet, and the top block 6 is connected to the other side of the curved sliding rail 5 through an elastic structure. The top block 6 is driven by the magnetic field change of the electromagnet 10 and the elastic restoring force of the elastic structure.

in a third method, see fig. 4B, the driving of the top block 6 is achieved by forming a guide mechanism. A guide structure is formed by a guide rail 7, a lead block 8, a traction cable 9 and an electromagnet 10, and specifically, the extension direction of the guide rail 7 is the same as that of the curved slide rail 5; the lead block 8 is arranged on the guide rail 7 in a sliding way; the traction cable 9 is connected with the lead block 8 and the jacking block 6; electromagnets 10 are arranged at one or both ends of the guide rail 7. Similar to the arrangement of the first and second methods, for example, the electromagnets 10 are disposed at both ends of the guide rail 7, the top block 6 is a magnet, and the electromagnets 10 drive the lead block 8 to slide on the guide rail 7 by magnetic pole change. Of course, the electromagnet 10 may be disposed at one end of the guide rail 7, and the principle is similar to that described above, and detailed description thereof is omitted.

When the device works, the electromagnet 10 drives the lead block 8 through electromagnetic force, and the lead block 8 drives the jacking block 6 to move through the traction cable 9.

The guiding structure may be a set or a plurality of sets, and the structure shown in fig. 4B uses two sets of guiding mechanisms to complete the driving of the top block 6.

The guide rail 7, the lead block 8 and the traction cable 9 are generally made of non-metallic materials, and the guide rail 7 and the lead block 8 may be made of plastic or the like so that the surface influences the charging process. The traction rope 9 can be made of nylon or the like.

In the above three modes, the electromagnets 10 used are all communicated with the power receiving unit 4, and power supply is realized through the power receiving unit 4. Of course, a processing module, such as a current regulator, a processor, etc., may also be provided, which may be set as needed by those skilled in the art, and details are not described in this application. In general, a wireless charging apparatus has a foreign object detection function, and cleaning of foreign objects is started when the presence of foreign objects is detected.

During the cleaning process, the working performance of the electromagnet 10 can be adjusted according to the actual cleaning condition. For example, the weight is estimated according to the different sizes of the foreign matters, or the weight of the foreign matters is directly measured, and the working strength is adjusted according to the weight, so that the foreign matters can be removed, the energy consumption can be reduced, and unnecessary energy loss is reduced particularly when electricity is taken from the power transmission unit 1. The above use of weight as a basis is illustrative and not intended to limit the possibilities of other embodiments.

The above three methods are all implemented by the top block 6, i.e. an alternative embodiment of the drive unit, and in the following, another embodiment of the drive unit is described.

In this embodiment, referring to fig. 5, the driving unit has a plurality of cams 11, each of which is located below one of the rotating planes 3, and of two adjacent cams 11, the latter cam 11 is angularly retarded with respect to the former cam 11, and the rotational speed of each cam 11 is the same. There may be angular identity among the plurality of cams 11, but the two angularly identity cams are not adjacent. This is also to avoid that two adjacent rotating surfaces 3 rotate simultaneously, and foreign matter may fall below the rotating surfaces 3 and be unable to be cleaned.

The specific setting of angle can be adjusted according to demands such as actual dimensions, and it needs to satisfy, in two adjacent rotating faces 3, after first rotating face 3 reaches maximum stroke at least, second rotating face 3 just can begin to rotate, and this is also to avoid the foreign matter to fall below rotating face 3.

Further, each cam 11 is formed with a driving tooth; the drive unit also has a chain, which is in mesh with the drive teeth. The chain ensures synchronous rotation of each cam 11.

Here too, it is preferred to use cams 11 and chains of plastic material.

It is noted that in many of the above, plastics are mentioned to be used instead of metallic materials in order to avoid that metals influence the electromagnetic field during charging. Plastic is only one preferred material and is not intended to limit the present application.

In both the above embodiments using the top block 6 and the above embodiments using the cam 11, it is necessary to ensure that two adjacent rotating surfaces 3 do not open simultaneously, or that at least one rotating surface 3 reaches the maximum stroke before the next rotating surface starts to move. The reason is to avoid foreign matter from falling under the rotating surface 3, as described above.

In order to better solve the problem of falling of foreign bodies and at the same time reduce the precision requirement for the opening time of the rotary surfaces 3, both embodiments can be provided with a cover film which is arranged above the cover unit 2 or is connected to the connecting end 32 of the previous rotary surface 3 at the free end 31 of one rotary surface 3.

Referring to fig. 6, a collecting box 12 is arranged on top of the free end 31, preferably on the bottom side, and the collecting box 12 has a winding shaft therein, and the cover film is fixed at one end thereof to the winding shaft and connected at the other end thereof to the adjacent (free end 31-adjacent) rotating surface 3, and is located in the middle of the adjacent rotating surface 3, i.e. between the free end 31 and the connecting end 32.

The winding shaft has an elastic structure, so that the covering film can be collected in the collecting box 12, and the covering film can be released from the collecting box 12 when the rotating surface 3 rotates.

Thus, even if the rotation times of the adjacent rotating surfaces 3 overlap, the foreign matter is blocked by the coating film. On the other hand, it is also avoided that foreign bodies fall from other positions under the rotating surface 3 after the rotating surface 3 has rotated (e.g. rolling stones, rolling under the rotating surface 3 just after it has rotated).

In summary, the foreign matter cleaning device of the wireless charging device can realize the function of cleaning foreign matters. After the foreign bodies are cleaned, the safety problem is avoided, and the normal charging work can not be influenced. In the cleaning process, the space required by the rotating surfaces 3 which rotate in sequence is smaller, and the requirement of a gap between a vehicle chassis and the ground can be met when the vehicle is charged.

the above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.