Wireless charging device and autonomous mobile device

Abstract

The utility model provides a wireless charging device and an autonomous mobile device, the wireless charging device is used for charging the autonomous mobile device, the autonomous mobile device comprises a power receiving coil and a second photoelectric unit, and the wireless charging device comprises a first photoelectric unit, a second photoelectric unit and a control unit, the first photoelectric unit can communicate with the second photoelectric unit under the condition that the autonomous mobile device enters a charging area of the wireless charging device; and the power transmission coil is wound on the first photoelectric unit and is used for transmitting power to the power receiving coil under the condition that the first photoelectric unit communicates with the second photoelectric unit. According to the wireless charging device provided by the utility model, alignment can be carried out through the first photoelectric unit and the second photoelectric unit, and after alignment is completed, a device to be charged can be charged through the power transmission coil and the power receiving coil, so that the accuracy of alignment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless charging, in particular to a wireless charging device and an autonomous mobile device. Background Art

[0002] In recent years, autonomous mobile devices such as autonomous mobile robots (AMR) or automated guided vehicles (AGV) have been widely used in various scenarios, such as smart logistics and warehousing scenarios, due to their autonomy and high efficiency. Existing autonomous mobile devices use wireless charging technology, which requires the wireless charging device's transmitting coil and receiving coil to be aligned together to achieve charging. The existing alignment methods are generally aligned through cameras or QR codes. The alignment method through cameras is costly, and the alignment method through QR codes is unstable. QR codes are easily damaged, resulting in the inability to achieve alignment.

[0003] Therefore, how to design a wireless charging device that can ensure the accuracy of positioning during wireless charging and reduce costs has become a problem that needs to be solved urgently. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0005] To this end, a first aspect of the present utility model provides a wireless charging device.

[0006] A second aspect of the present invention provides an autonomous mobile device.

[0007] In view of this, the first aspect of the utility model proposes a wireless charging device, which is used to charge an autonomous mobile device. The autonomous mobile device includes a power receiving coil and a second photoelectric unit. The wireless charging device includes: a first photoelectric unit, which can communicate with the second photoelectric unit when the autonomous mobile device enters the charging area of ​​the wireless charging device; a power transmission coil, which is arranged around the first photoelectric unit and is used to transmit power to the power receiving coil when the first photoelectric unit communicates with the second photoelectric unit.

[0008] The wireless charging device provided by the utility model can charge an autonomous mobile device. The autonomous mobile device includes a power receiving coil and a second photoelectric unit, and the wireless charging device includes a first photoelectric unit and a power transmission coil, so that the first photoelectric unit and the second photoelectric unit can be aligned, and when the alignment is completed, the device to be charged can be charged through the power transmission coil and the power receiving coil. Specifically, the first photoelectric unit can communicate with the second photoelectric unit for alignment when the autonomous mobile device enters the charging area of ​​the wireless charging device. The power transmission coil is arranged around the first photoelectric unit, that is, the first photoelectric unit can be arranged in the middle of the power transmission coil, so that when charging is performed using the wireless charging device, the photoelectric signal emitted by the photoelectric unit can be used for alignment, thereby ensuring the accuracy of the alignment. Since the first photoelectric unit is arranged in the middle of the power transmission coil, it can ensure that the power receiving coil and the power transmission coil are accurately aligned, thereby improving the charging efficiency. Moreover, compared with the method of alignment through a camera, the cost of the scheme of alignment through a photoelectric unit in this application is lower. Compared with the scheme of alignment through a QR code, the scheme of alignment through a photoelectric unit in this application is more stable.

[0009] The wireless charging device provided by the utility model may also have the following additional technical features:

[0010] In some technical solutions, optionally, the wireless charging device also includes: a first shell, in which the power transmission coil and the first photoelectric unit are arranged; a first insulating shell, which is arranged in the first shell, in which the power transmission coil is arranged around the first insulating shell, and the first photoelectric unit is arranged in the first insulating shell.

[0011] In this technical solution, the wireless charging device also includes a first shell and a first insulating shell. The first photoelectric unit and the power transmission coil are arranged in the first shell, so that the first photoelectric unit and the power transmission coil can be protected by the first shell to improve the stability of charging and alignment. More specifically, a first insulating shell is also provided in the first shell, and the first insulating shell is provided in the middle of the power transmission coil, so that the first photoelectric unit can be arranged in the first insulating shell to be insulated by the first insulating shell, so as to prevent the power transmission coil from interfering with the first photoelectric unit and improve the stability of the first photoelectric unit.

[0012] In some technical solutions, optionally, the first shell includes a light-transmitting shell.

[0013] In this technical solution, the first housing includes a light-transmitting housing, so that the first photoelectric unit and the second photoelectric unit can communicate without opening a channel on the first housing, thereby achieving effective alignment through the first photoelectric unit. In addition, since there is no need to open a channel on the first housing, the safety of the power transmission coil and the first photoelectric unit in the first housing can be effectively guaranteed, and damage to the power transmission coil and the first photoelectric unit can be avoided.

[0014] In some technical solutions, optionally, an opening for light to pass through is provided on the first shell.

[0015] In this technical solution, an opening for light to pass through can also be provided on the first housing, so that the photoelectric signal of the first photoelectric unit is received or sent through the opening. Since the opening is provided on the first housing, the first housing does not need to be provided as a transparent housing, which can prevent other light from interfering with the first photoelectric unit, thereby improving the accuracy of alignment.

[0016] In some technical solutions, optionally, the wireless charging device also includes: a first ferrite backplate, which is arranged in the first shell, and the power transmission coil and the first insulating shell are arranged on the first ferrite backplate.

[0017] In this technical solution, the wireless charging device also includes a first ferrite backplane. The first ferrite backplane is arranged in the first shell, and the power transmission coil and the first insulating shell are arranged on the first ferrite backplane, so that the charging efficiency can be increased through the first ferrite backplane, and installation space can be provided for the setting of the first insulating shell, without the need to set up additional installation space, making the overall structure more compact.

[0018] In some technical solutions, optionally, the first optoelectronic unit includes a transmitting unit and / or a receiving unit.

[0019] In this technical solution, the first photoelectric unit includes a transmitting unit and / or a receiving unit. It is understandable that the first photoelectric unit can include a transmitting unit and a receiving unit alone or at the same time. When the transmitting unit and the receiving unit are set alone, one-way communication can be achieved, and when the transmitting unit and the receiving unit are set at the same time, two-way communication can be achieved. In this way, when there is a problem with communication in one direction, communication can still be carried out in another direction, thereby improving communication efficiency and communication stability.

[0020] In some technical solutions, optionally, the wireless charging device also includes: a first distance sensor, which is arranged on the first shell.

[0021] In this technical solution, the wireless charging device also includes a first distance sensor. The first distance sensor is arranged on the first housing, and the first distance sensor can be arranged to adjust the distance between the wireless charging device and the autonomous mobile device after the alignment is completed, so as to ensure that the distance between the two is moderate, thereby achieving high-efficiency charging.

[0022] In some technical solutions, optionally, the wireless charging device further includes: a first insulating member, wrapped around the power transmission coil.

[0023] In this technical solution, the wireless charging device also includes a first insulating member. The first insulating member is coated on the power transmission coil, so that the power transmission coil can be insulated from the outside world by the first insulating member, thereby ensuring that the power transmission coil and the first photoelectric unit do not affect each other. Moreover, in the case where the first insulating member is set in the present application, the first photoelectric unit, the power transmission coil and other circuit components can be arranged more compactly, so that they can be arranged at a closer distance, thereby reducing the overall volume, thereby meeting the use requirements of different scenarios.

[0024] In some technical solutions, optionally, the first photoelectric unit includes one of the following or a combination thereof: a through-beam photoelectric sensor, a diffuse photoelectric sensor, a mirror reflection photoelectric sensor, a slot photoelectric sensor, and a fiber optic photoelectric sensor.

[0025] In this technical solution, the first photoelectric unit includes one or a combination of a through-beam photoelectric sensor, a diffuse photoelectric sensor, a mirror reflection photoelectric sensor, a slot photoelectric sensor and a fiber optic photoelectric sensor. The through-beam photoelectric sensor can distinguish opaque reflective objects, has a large effective distance, is not easily disturbed, and can make the alignment more accurate. The effective action distance of the diffuse photoelectric sensor is determined by the reflective ability of the target, the surface properties and the color of the target. When the switch is composed of a single component, it can usually achieve rough positioning, and the background suppression function is used to adjust the measurement distance. It is sensitive to dust on the target and to the changed reflective performance of the target. The mirror reflection photoelectric sensor can distinguish opaque objects, and with the help of the reflector component, a high effective distance range is formed, which is not easily disturbed and can be reliably and appropriately used in the wild or in dusty environments. The slot photoelectric sensor can be relatively safe and reliable for detecting high-speed changes and distinguishing transparent and translucent objects.

[0026] The second aspect of the utility model proposes an autonomous mobile device, which is charged by the wireless charging device in any technical solution of the first aspect. The autonomous mobile device includes: a second photoelectric unit, which can communicate with the first photoelectric unit when the autonomous mobile device enters the charging area of ​​the wireless charging device; a power receiving coil, which is arranged around the second photoelectric unit and is used to receive the photoelectric signal emitted by the power transmitting coil when the first photoelectric unit communicates with the second photoelectric unit.

[0027] According to the autonomous mobile device provided by the utility model, the wireless charging device in any technical solution of the first aspect is used for charging. The autonomous mobile device includes a power receiving coil and a second photoelectric unit, and the second photoelectric unit can communicate with the first photoelectric unit when the autonomous mobile device enters the charging area of ​​the wireless charging device. The power receiving coil is wound around the second photoelectric unit and can receive the photoelectric signal emitted by the power transmitting coil when the first photoelectric unit communicates with the second photoelectric unit. Specifically, the second photoelectric unit can communicate with the first photoelectric unit for alignment when the autonomous mobile device enters the charging area of ​​the wireless charging device. The power receiving coil is wound around the second photoelectric unit, that is, the second photoelectric unit can be set in the middle of the power receiving coil, so that when the autonomous mobile device is charged, the photoelectric signal emitted by the photoelectric unit can be used for alignment, thereby ensuring the accuracy of the alignment. Since the second photoelectric unit is set in the middle of the power receiving coil, it can ensure that the power receiving coil and the power receiving coil are accurately aligned, thereby improving the charging efficiency. In addition, compared with the method of alignment through a camera, the scheme of alignment through a photoelectric unit in this application is relatively low in cost. Compared with the solution of aligning by using a two-dimensional code, the solution of aligning by using a photoelectric unit in the present application is more stable.

[0028] In some technical solutions, optionally, the autonomous mobile device also includes: a second shell, in which the power receiving coil and the second photoelectric unit are arranged; a second insulating shell, which is arranged in the second shell, in which the power receiving coil is arranged around the second insulating shell, and the second photoelectric unit is arranged in the second insulating shell.

[0029] In this technical solution, the autonomous mobile device also includes a second shell and a second insulating shell. The second photoelectric unit and the power receiving coil are arranged in the second shell, so that the second photoelectric unit and the power receiving coil can be protected by the second shell to improve the stability of charging and alignment. More specifically, a second insulating shell is also arranged in the second shell, and the second insulating shell is arranged in the middle of the power receiving coil, so that the second photoelectric unit can be arranged in the second insulating shell to be insulated by the second insulating shell, so as to prevent the power receiving coil from interfering with the second photoelectric unit and improve the stability of the second photoelectric unit.

[0030] In some technical solutions, optionally, the second shell includes a light-transmitting shell.

[0031] In this technical solution, the second shell includes a light-transmitting shell, so that the second photoelectric unit can communicate with the first photoelectric unit without opening a channel on the second shell, thereby achieving effective alignment through the second photoelectric unit. In addition, since there is no need to open a channel on the second shell, the safety of the power receiving coil and the second photoelectric unit in the second shell can be effectively guaranteed, avoiding damage to the power receiving coil and the second photoelectric unit.

[0032] In some technical solutions, optionally, an opening for light to pass through is provided on the second shell.

[0033] In this technical solution, an opening for light to pass through can also be provided on the second housing, so that the photoelectric signal of the second photoelectric unit is received or sent through the opening. Since the opening is provided on the second housing, the second housing does not need to be provided as a transparent housing, which can prevent other light from interfering with the second photoelectric unit, thereby improving the accuracy of alignment.

[0034] In some technical solutions, optionally, the autonomous mobile device further includes: a second ferrite backplate, disposed in the second shell, and the power receiving coil and the second insulating shell are disposed on the second ferrite backplate.

[0035] In this technical solution, the autonomous mobile device further includes a second ferrite back plate. The second ferrite back plate is arranged in the second shell, and the power receiving coil and the second insulating shell are arranged on the second ferrite back plate, so that the charging efficiency can be increased by the second ferrite back plate, and an installation space can be provided for the setting of the second insulating shell without setting an additional installation space, making the overall structure more compact.

[0036] In some technical solutions, optionally, the first photoelectric unit includes one of the transmitting unit and the receiving unit, and the second photoelectric unit includes the other of the transmitting unit and the receiving unit; or the first photoelectric unit includes the transmitting unit and the receiving unit, and the second photoelectric unit includes the transmitting unit and the receiving unit.

[0037] In this technical solution, the first photoelectric unit and the second photoelectric unit may include a transmitting unit and a receiving unit separately, or may include a transmitting unit and a receiving unit at the same time. When the transmitting unit and the receiving unit are set separately, one-way communication can be realized, and when the transmitting unit and the receiving unit are set at the same time, two-way communication can be realized. In this way, when there is a problem with communication in one direction, communication can still be carried out in another direction, thereby improving communication efficiency and communication stability.

[0038] In some technical solutions, optionally, the autonomous mobile device further includes: a second distance sensor, which is arranged on the second shell.

[0039] In this technical solution, the autonomous mobile device further includes a second distance sensor. The second distance sensor is disposed on the second housing, and the second distance sensor can be disposed to adjust the distance between the wireless charging device and the autonomous mobile device after the alignment is completed, so as to ensure that the distance between the two is moderate, thereby achieving high-efficiency charging.

[0040] In some technical solutions, optionally, the autonomous mobile device further includes: a second insulating member, wrapped around the power receiving coil.

[0041] In this technical solution, the autonomous mobile device also includes a second insulating member. The second insulating member is coated on the power receiving coil, so that the power receiving coil can be insulated from the outside world by the second insulating member, thereby ensuring that the power receiving coil and the second photoelectric unit do not affect each other. In addition, in the case where the second insulating member is set in the present application, the second photoelectric unit, the power receiving coil and other circuit components can be arranged more compactly, so that they can be arranged at a closer distance, thereby reducing the overall volume, thereby meeting the use requirements of different scenarios.

[0042] In some technical solutions, optionally, the second photoelectric unit includes one of the following or a combination thereof: a through-beam photoelectric sensor, a diffuse photoelectric sensor, a mirror reflection photoelectric sensor, a slot photoelectric sensor, and a fiber optic photoelectric sensor.

[0043] In this technical solution, the second photoelectric unit includes one or a combination of a through-beam photoelectric sensor, a diffuse photoelectric sensor, a mirror reflection photoelectric sensor, a slot photoelectric sensor and a fiber optic photoelectric sensor. The through-beam photoelectric sensor can distinguish opaque reflective objects, has a large effective distance, is not easily disturbed, and can make the alignment more accurate. The effective action distance of the diffuse photoelectric sensor is determined by the reflective ability of the target, the surface properties and color of the target. When the switch is composed of a single component, it can usually achieve rough positioning, and the background suppression function is used to adjust the measurement distance. It is sensitive to dust on the target and to the changed reflective performance of the target. The mirror reflection photoelectric sensor can distinguish opaque objects, and with the help of the reflector component, a high effective distance range is formed, which is not easily disturbed and can be reliably and appropriately used in the wild or in dusty environments. The slot photoelectric sensor can be relatively safe and reliable for detecting high-speed changes and distinguishing transparent and translucent objects.

[0044] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0046] Figure 1 A schematic diagram showing the structure of a wireless charging device according to an embodiment of the utility model is shown;

[0047] Figure 2 A schematic diagram showing the photoelectric switch alignment application principle of a wireless charging device according to an embodiment of the utility model is shown;

[0048] Figure 3 A block diagram of a wireless charging device according to an embodiment of the present invention is shown;

[0049] Figure 4 A block diagram of an autonomous mobile device according to an embodiment of the present invention is shown.

[0050] in, Figures 1 to 4 The corresponding relationship between the reference numerals and the component names is as follows:

[0051] 1 power transmission coil, 2 first photoelectric unit, 3 first insulating shell, 4 photoelectric transmitting end, 5 photoelectric receiving end, 6 wireless charging device, 7 autonomous mobile device, 8 power receiving coil, 9 second photoelectric unit, 10 second insulating shell. DETAILED DESCRIPTION

[0052] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0053] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0054] Refer to the following Figures 1 to 4 The wireless charging device 6 and the autonomous mobile device 7 according to some embodiments of the present invention are described.

[0055] According to an embodiment of the first aspect of the present utility model, Figure 1 , Figure 2 and Figure 3 As shown, the first aspect of the utility model proposes a wireless charging device 6, which is used to charge an autonomous mobile device 7. The autonomous mobile device 7 includes a power receiving coil 8 and a second photoelectric unit 9. The wireless charging device 6 includes a first photoelectric unit 2 and a power transmission coil 1. The first photoelectric unit 2 can communicate with the second photoelectric unit 9 when the autonomous mobile device 7 enters the charging area of ​​the wireless charging device 6. The power transmission coil 1 is arranged around the first photoelectric unit 2, and can transmit power to the power receiving coil 8 when the first photoelectric unit 2 communicates with the second photoelectric unit 9.

[0056] The wireless charging device 6 provided by the utility model can charge the autonomous mobile device 7. The autonomous mobile device 7 includes a power receiving coil 8 and a second photoelectric unit 9, and the wireless charging device 6 includes a first photoelectric unit 2 and a power transmission coil 1, so that the first photoelectric unit 2 and the second photoelectric unit 9 can be aligned, and when the alignment is completed, the device to be charged can be charged through the power transmission coil 1 and the power receiving coil 8. Specifically, the first photoelectric unit 2 can communicate with the second photoelectric unit 9 for alignment when the autonomous mobile device 7 enters the charging area of ​​the wireless charging device 6. The power transmission coil 1 is arranged around the first photoelectric unit 2, that is, the first photoelectric unit 2 can be arranged in the middle of the power transmission coil 1, so that when charging is performed using the wireless charging device 6, the photoelectric signal emitted by the photoelectric unit can be used for alignment, thereby ensuring the accuracy of the alignment. Since the first photoelectric unit 2 is arranged in the middle of the power transmission coil 1, it can ensure that the power receiving coil 8 and the power transmission coil 1 are accurately aligned, thereby improving the charging efficiency. In addition, compared with the method of alignment through a camera, the cost of the scheme of alignment through a photoelectric unit in this application is lower. Compared with the solution of aligning by using a two-dimensional code, the solution of aligning by using a photoelectric unit in the present application is more stable.

[0057] Among them, through the solution of the present application, the alignment deviation between the power transmission coil 1 of the charging device and the power receiving coil 8 of the autonomous mobile device 7 can be made less than 15°.

[0058] In some embodiments, optionally, the wireless charging device 6 also includes: a first shell, in which the power transmission coil 1 and the first photoelectric unit 2 are arranged; a first insulating shell 3, which is arranged in the first shell, in which the power transmission coil 1 is arranged around the first insulating shell 3, and in which the first photoelectric unit 2 is arranged.

[0059] In this embodiment, the wireless charging device 6 also includes a first shell and a first insulating shell 3. The first photoelectric unit 2 and the power transmission coil 1 are arranged in the first shell, so that the first photoelectric unit 2 and the power transmission coil 1 can be protected by the first shell to improve the stability of charging and alignment. More specifically, a first insulating shell 3 is also provided in the first shell, and the first insulating shell 3 is arranged in the middle of the power transmission coil 1, so that the first photoelectric unit 2 can be arranged in the first insulating shell 3 to be insulated by the first insulating shell 3 to prevent the power transmission coil 1 from interfering with the first photoelectric unit 2, thereby improving the stability of the first photoelectric unit 2.

[0060] In some embodiments, optionally, the first housing includes a light-transmitting housing.

[0061] In this embodiment, the first housing includes a light-transmitting housing, so that the first photoelectric unit 2 can communicate with the second photoelectric unit 9 without opening a channel on the first housing, thereby achieving effective alignment through the first photoelectric unit 2. In addition, since there is no need to open a channel on the first housing, the safety of the power transmission coil 1 and the first photoelectric unit 2 in the first housing can be effectively guaranteed, and damage to the power transmission coil 1 and the first photoelectric unit 2 can be avoided.

[0062] In some embodiments, optionally, an opening for light to pass through is provided on the first shell.

[0063] In this embodiment, an opening for light to pass through may also be provided on the first housing, so that the photoelectric signal of the first photoelectric unit 2 is received or sent through the opening. Since the opening is provided on the first housing, the first housing may not be provided as a transparent housing, which can prevent other light from interfering with the first photoelectric unit 2, thereby improving the accuracy of alignment.

[0064] In some embodiments, optionally, the wireless charging device 6 further includes: a first ferrite back plate, which is disposed in the first shell, and the power transmission coil 1 and the first insulating shell 3 are disposed on the first ferrite back plate.

[0065] In this embodiment, the wireless charging device 6 further includes a first ferrite backplane. The first ferrite backplane is disposed in the first housing, and the power transmission coil 1 and the first insulating shell 3 are disposed on the first ferrite backplane, so that the charging efficiency can be increased by the first ferrite backplane, and an installation space can be provided for the first insulating shell 3, without the need for additional installation space, making the overall structure more compact.

[0066] In some embodiments, optionally, the first optoelectronic unit 2 includes a transmitting unit and / or a receiving unit.

[0067] In this embodiment, the first photoelectric unit 2 includes a transmitting unit and / or a receiving unit. It can be understood that the first photoelectric unit 2 can include a transmitting unit and a receiving unit alone, or can include a transmitting unit and a receiving unit at the same time. When the transmitting unit and the receiving unit are set alone, one-way communication can be achieved, and when the transmitting unit and the receiving unit are set at the same time, two-way communication can be achieved. In this way, when there is a problem with communication in one direction, communication can still be carried out in another direction, thereby improving communication efficiency and communication stability.

[0068] In some embodiments, optionally, the wireless charging device 6 further includes: a first distance sensor, which is disposed on the first shell.

[0069] In this embodiment, the wireless charging device 6 further includes a first distance sensor. The first distance sensor is disposed on the first housing, and the first distance sensor can be disposed to adjust the distance between the wireless charging device 6 and the autonomous mobile device 7 after the alignment is completed, so as to ensure that the distance between the two is moderate, thereby achieving high-efficiency charging.

[0070] In some embodiments, optionally, the wireless charging device 6 further includes: a first insulating member, wrapped around the power transmission coil 1 .

[0071] In this embodiment, the wireless charging device 6 also includes a first insulating member. The first insulating member is coated on the power transmission coil 1, so that the power transmission coil 1 can be insulated from the outside world by the first insulating member, thereby ensuring that the power transmission coil 1 and the first photoelectric unit 2 do not affect each other. In addition, in the case where the first insulating member is set in the present application, the first photoelectric unit 2, the power transmission coil 1 and other circuit components can be arranged more compactly, so that they can be arranged at a closer distance, thereby reducing the overall volume, thereby meeting the use requirements of different scenarios.

[0072] In some embodiments, optionally, the first photoelectric unit 2 includes one of the following or a combination thereof: a through-beam photoelectric sensor, a diffuse photoelectric sensor, a mirror reflection photoelectric sensor, a slot photoelectric sensor, and a fiber optic photoelectric sensor.

[0073] In this embodiment, the first photoelectric unit 2 includes one or a combination of a through-beam photoelectric sensor, a diffuse photoelectric sensor, a mirror reflection photoelectric sensor, a slot photoelectric sensor and a fiber optic photoelectric sensor. The through-beam photoelectric sensor can distinguish opaque reflective objects, has a large effective distance, is not easily disturbed, and can make the alignment more accurate. The effective action distance of the diffuse photoelectric sensor is determined by the reflective ability of the target, the surface properties and the color of the target. When the switch is composed of a single component, it can usually achieve rough positioning, and the background suppression function is used to adjust the measurement distance. It is sensitive to dust on the target and to the changed reflective performance of the target. The mirror reflection photoelectric sensor can distinguish opaque objects, and with the help of the reflector component, a high effective distance range is formed, which is not easily disturbed and can be reliably and appropriately used in the wild or in dusty environments. The slot photoelectric sensor can be relatively safe and reliable for detecting high-speed changes and distinguishing transparent and translucent objects.

[0074] like Figure 4As shown, the second aspect of the utility model proposes an autonomous mobile device 7, which is charged by the wireless charging device 6 in any one of the embodiments of the first aspect, and the autonomous mobile device 7 includes a second photoelectric unit 9 and a power receiving coil 8. The second photoelectric unit 9 can communicate with the first photoelectric unit 2 when the autonomous mobile device 7 enters the charging area of ​​the wireless charging device 6. The power receiving coil 8 is arranged around the second photoelectric unit 9, and can receive the photoelectric signal emitted by the power transmission coil 1 when the first photoelectric unit 2 communicates with the second photoelectric unit 9.

[0075] According to the autonomous mobile device 7 provided by the utility model, the wireless charging device 6 in any one of the embodiments of the first aspect is used for charging. The autonomous mobile device 7 includes a power receiving coil 8 and a second photoelectric unit 9, and the second photoelectric unit 9 can communicate with the first photoelectric unit 2 when the autonomous mobile device 7 enters the charging area of ​​the wireless charging device 6. The power receiving coil 8 is wound around the second photoelectric unit 9, and can receive the photoelectric signal emitted by the power transmitting coil 1 when the first photoelectric unit 2 communicates with the second photoelectric unit 9. Specifically, the second photoelectric unit 9 can communicate with the first photoelectric unit 2 for alignment when the autonomous mobile device 7 enters the charging area of ​​the wireless charging device 6. The power receiving coil 8 is wound around the second photoelectric unit 9, that is, the second photoelectric unit 9 can be set in the middle position of the power receiving coil 8, so that when the autonomous mobile device 7 is charged, it can be aligned by the photoelectric signal emitted by the photoelectric unit, thereby ensuring the accuracy of the alignment. Since the second photoelectric unit 9 is set in the middle of the power receiving coil 8, it can ensure that the power receiving coil 8 and the power receiving coil 8 are accurately aligned, thereby improving the charging efficiency. Moreover, compared with the method of alignment through a camera, the method of alignment through a photoelectric unit in the present application is less expensive. Compared with the method of alignment through a QR code, the method of alignment through a photoelectric unit in the present application is more stable.

[0076] In some embodiments, optionally, the autonomous mobile device 7 also includes: a second shell, in which the power receiving coil 8 and the second photoelectric unit 9 are arranged; a second insulating shell 10, which is arranged in the second shell, in which the power receiving coil 8 is arranged around the second insulating shell 10, and the second photoelectric unit 9 is arranged in the second insulating shell 10.

[0077] In this embodiment, the autonomous mobile device 7 further includes a second shell and a second insulating shell 10. The second photoelectric unit 9 and the power receiving coil 8 are arranged in the second shell, so that the second photoelectric unit 9 and the power receiving coil 8 can be protected by the second shell to improve the stability of charging and alignment. More specifically, a second insulating shell 10 is also provided in the second shell, and the second insulating shell 10 is provided in the middle of the power receiving coil 8, so that the second photoelectric unit 9 can be arranged in the second insulating shell 10, so as to be insulated by the second insulating shell 10, prevent the power receiving coil 8 from interfering with the second photoelectric unit 9, and improve the stability of the second photoelectric unit 9.

[0078] In some embodiments, optionally, the second housing comprises a light-transmitting housing.

[0079] In this embodiment, the second housing includes a light-transmitting housing, so that the second photoelectric unit 9 can communicate with the first photoelectric unit 2 without opening a channel on the second housing, thereby achieving effective alignment through the second photoelectric unit 9. In addition, since there is no need to open a channel on the second housing, the safety of the power receiving coil 8 and the second photoelectric unit 9 in the second housing can be effectively guaranteed, and damage to the power receiving coil 8 and the second photoelectric unit 9 can be avoided.

[0080] In some embodiments, optionally, an opening for light to pass through is provided on the second shell.

[0081] In this embodiment, an opening for light to pass through may also be provided on the second housing, so that the photoelectric signal of the second photoelectric unit 9 is received or sent through the opening. Since the opening is provided on the second housing, the second housing may not be provided as a transparent housing, which can prevent other light from interfering with the second photoelectric unit 9, thereby improving the accuracy of alignment.

[0082] In some embodiments, optionally, the autonomous mobile device 7 further includes: a second ferrite back plate, which is disposed in the second shell, and the power receiving coil 8 and the second insulating shell 10 are disposed on the second ferrite back plate.

[0083] In this embodiment, the autonomous mobile device 7 further includes a second ferrite back plate. The second ferrite back plate is disposed in the second housing, and the power receiving coil 8 and the second insulating shell 10 are disposed on the second ferrite back plate, so that the charging efficiency can be increased by the second ferrite back plate, and an installation space can be provided for the second insulating shell 10, without the need for additional installation space, making the overall structure more compact.

[0084] In some embodiments, optionally, the first photoelectric unit 2 includes a transmitting unit and the second photoelectric unit 9 includes a receiving unit; or the first photoelectric unit 2 includes a receiving unit and the second photoelectric unit 9 includes a transmitting unit; or the first photoelectric unit 2 includes a transmitting unit and a receiving unit and the second photoelectric unit 9 includes a transmitting unit and a receiving unit.

[0085] In this embodiment, the first photoelectric unit 2 and the second photoelectric unit 9 may include a transmitting unit and a receiving unit separately, or may include a transmitting unit and a receiving unit at the same time. When the transmitting unit and the receiving unit are set separately, one-way communication can be achieved, and when the transmitting unit and the receiving unit are set at the same time, two-way communication can be achieved. In this way, when there is a problem with communication in one direction, communication can still be carried out in another direction, thereby improving communication efficiency and communication stability.

[0086] In some embodiments, optionally, the autonomous mobile device 7 further includes: a second distance sensor, which is disposed on the second shell.

[0087] In this embodiment, the autonomous mobile device 7 further includes a second distance sensor. The second distance sensor is disposed on the second housing, and the second distance sensor can be disposed to adjust the distance between the wireless charging device 6 and the autonomous mobile device 7 after the alignment is completed, so as to ensure that the distance between the two is moderate, thereby achieving high-efficiency charging.

[0088] In some embodiments, optionally, the autonomous mobile device 7 further includes: a second insulating member, wrapped around the power receiving coil 8 .

[0089] In this embodiment, the autonomous mobile device 7 also includes a second insulating member. The second insulating member is coated on the power receiving coil 8, so that the power receiving coil 8 can be insulated from the outside world by the second insulating member, thereby ensuring that the power receiving coil 8 and the second photoelectric unit 9 do not affect each other. In addition, in the case where the second insulating member is set in the present application, the second photoelectric unit 9, the power receiving coil 8 and other circuit components can be arranged more compactly, so that they can be arranged at a closer distance, thereby reducing the overall volume, thereby meeting the use requirements of different scenarios.

[0090] In some embodiments, optionally, the second photoelectric unit 9 includes one of the following or a combination thereof: a through-beam photoelectric sensor, a diffuse photoelectric sensor, a mirror reflection photoelectric sensor, a slot photoelectric sensor, and a fiber optic photoelectric sensor.

[0091] In this embodiment, the second photoelectric unit 9 includes one or a combination of a through-beam photoelectric sensor, a diffuse photoelectric sensor, a mirror reflection photoelectric sensor, a slot photoelectric sensor and a fiber optic photoelectric sensor. The through-beam photoelectric sensor can distinguish opaque reflective objects, has a large effective distance, is not easily disturbed, and can make the alignment more accurate. The effective action distance of the diffuse photoelectric sensor is determined by the reflective ability of the target, the surface properties and the color of the target. When the switch is composed of a single component, it can usually achieve rough positioning, and the background suppression function is used to adjust the measurement distance. It is sensitive to dust on the target and to the changed reflective performance of the target. The mirror reflection photoelectric sensor can distinguish opaque objects, and with the help of the reflector component, a large effective distance range is formed, which is not easily disturbed and can be reliably and appropriately used in the wild or in a dusty environment. The slot photoelectric sensor can be relatively safe and reliable for detecting high-speed changes and distinguishing transparent and translucent objects.

[0092] In one embodiment of the present application, a schematic diagram of the application of a first photoelectric unit 2 and a second photoelectric unit 9 is provided, such as Figure 2 As shown, the photoelectric transmitting end 4 (second photoelectric unit 9) is arranged on the receiving device (autonomous mobile device 7), and the photoelectric receiving end 5 (first photoelectric unit 2) is arranged on the transmitting device (wireless charging device 6), so that the photoelectric transmitting control foot A of the photoelectric transmitting end 4 (second photoelectric unit 9) can control the switch Q1 to close, thereby realizing the transmission of the photoelectric signal, and then the photoelectric receiving end 5 (first photoelectric unit 2) receives the photoelectric signal. Among them, Figure 2 B in the figure refers to the photoelectric signal receiving pin, and the arrow indicates the transmission direction of the photoelectric signal.

[0093] The specific charging principle is as follows: by setting a second photoelectric unit 9 at the center position of the power receiving coil 8, when the power receiving coil 8 installed at the receiving end (autonomous mobile device 7) of the car is accurately aligned, the photoelectric signal emitted by the receiving end (autonomous mobile device 7) will be received by the transmitting end (wireless charging device 6), so that the transmitting end (wireless charging device 6) determines that the charging coil and the power receiving coil 8 are aligned, and the transmitting end (wireless charging device 6) starts to transmit energy.

[0094] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0096] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A wireless charging device, characterized in that: The wireless charging device is used to charge an autonomous mobile device, the autonomous mobile device comprises a power receiving coil and a second photoelectric unit, and the wireless charging device comprises: a first optoelectronic unit capable of communicating with the second optoelectronic unit when the autonomous mobile device enters a charging area of ​​the wireless charging device; The power transmission coil is wound around the first photoelectric unit and is used to transmit power to the power receiving coil when the first photoelectric unit communicates with the second photoelectric unit.

2. The wireless charging device according to claim 1, characterized in that: The wireless charging device also includes: A first shell, wherein the power transmission coil and the first photoelectric unit are arranged in the first shell; The first insulating shell is arranged in the first shell body, the power transmission coil is arranged around the first insulating shell, and the first photoelectric unit is arranged in the first insulating shell.

3. The wireless charging device according to claim 2, characterized in that: The first housing comprises a light-transmitting housing; and / or The first shell is provided with an opening for light to pass through.

4. The wireless charging device according to claim 2, characterized in that: Also includes: A first ferrite back plate is disposed in the first shell, and the power transmission coil and the first insulating shell are disposed on the first ferrite back plate.

5. The wireless charging device according to any one of claims 1 to 4, characterized in that: The first optoelectronic unit includes a transmitting unit and / or a receiving unit.

6. The wireless charging device according to any one of claims 2 to 4, characterized in that: Also includes: The first distance sensor is arranged on the first shell.

7. The wireless charging device according to any one of claims 1 to 4, characterized in that: Also includes: The first insulating member is wrapped on the power transmission coil.

8. The wireless charging device according to any one of claims 1 to 4, characterized in that: The first photovoltaic unit includes one or a combination of the following: Through-beam photoelectric sensors, diffuse photoelectric sensors, mirror reflection photoelectric sensors, slot photoelectric sensors and fiber optic photoelectric sensors.

9. An autonomous mobile device, characterized in that: The autonomous mobile device is charged by a wireless charging device as claimed in any one of claims 1 to 8, and the autonomous mobile device comprises: a second optoelectronic unit capable of communicating with the first optoelectronic unit when the autonomous mobile device enters a charging area of ​​the wireless charging device; The power receiving coil is arranged around the second photoelectric unit and is used to receive the photoelectric signal emitted by the power transmitting coil when the first photoelectric unit communicates with the second photoelectric unit.

10. The autonomous mobile device according to claim 9, characterized in that: The autonomous mobile device further comprises: a second housing, wherein the power receiving coil and the second photoelectric unit are arranged in the second housing; The second insulating shell is arranged in the second shell body, the power receiving coil is arranged around the second insulating shell, and the second photoelectric unit is arranged in the second insulating shell.

11. The autonomous mobile device according to claim 10, characterized in that: The second housing comprises a light-transmitting housing; and / or The second shell is provided with an opening for light to pass through.

12. The autonomous mobile device according to claim 10, characterized in that: Also includes: A second ferrite back plate is arranged in the second shell, and the power receiving coil and the second insulating shell are arranged on the second ferrite back plate.

13. The autonomous mobile device according to any one of claims 9 to 12, characterized in that: The first optoelectronic unit includes one of a transmitting unit and a receiving unit, and the second optoelectronic unit includes the other of the transmitting unit and the receiving unit; or The first optoelectronic unit includes the transmitting unit and the receiving unit, and the second optoelectronic unit includes the transmitting unit and the receiving unit.

14. The autonomous mobile device according to any one of claims 10 to 12, characterized in that: Also includes: The second distance sensor is arranged on the second shell.

15. The autonomous mobile device according to any one of claims 9 to 12, characterized in that: Also includes: The second insulating member is wrapped on the power receiving coil.

16. The autonomous mobile device according to any one of claims 9 to 12, characterized in that: The second photovoltaic unit includes one or a combination of the following: Through-beam photoelectric sensors, diffuse photoelectric sensors, mirror reflection photoelectric sensors, slot photoelectric sensors and fiber optic photoelectric sensors.

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