Wireless charging device

Abstract

The utility model discloses a wireless charging device which comprises a charging seat, a power supply seat, a first butt joint structure arranged on the charging seat and a second butt joint structure arranged on the power supply seat, and the charging seat and the power supply seat are detachably connected through the first structure and the second structure. And when the first butt joint structure and the second butt joint structure are in a connection state, the first metal contact and the second metal contact are in contact, so that the power supply seat supplies power to the charging seat. According to the utility model, through the detachable connection design of the first butt joint structure and the second butt joint structure, the charging seat can be fixed on the power supply seat for use and can also be detached for independent use, so that the portability and flexibility of use are improved; in addition, the charging device is provided with the power supply seat, so that a user can install the charging seat on a center console of an automobile and the like through the power supply seat, and the requirements of various charging scenes are met.

Description

Technical Field

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

[0002] Wireless chargers are devices that use the principle of electromagnetic induction for charging. Its principle is similar to that of a transformer. A coil is placed at the transmitting end and the receiving end. The transmitting end coil sends an electromagnetic signal to the outside world under the action of electricity. The receiving end coil receives the electromagnetic signal and converts it into current, thereby achieving the purpose of wireless charging. Wireless charging technology is a special power supply method that does not require a power cord, relies on electromagnetic wave propagation, and then converts electromagnetic wave energy into electrical energy, ultimately achieving wireless charging.

[0003] With the rapid development of wireless charging technology, wireless chargers have been widely used in various scenarios, such as office desktops, home living rooms, and car environments. However, traditional wireless chargers generally lack fixing devices, which means that they can only be placed on a stable desktop for charging, or traditional wireless chargers can only adapt to one usage scenario and cannot adapt to different usage scenarios and needs (for example, they need to be considered as ordinary flat wireless chargers in daily indoor use, and can also be used as car magnetic brackets placed at the car air outlet or dashboard).

[0004] Although there are some multifunctional wireless chargers on the market (i.e., they can charge two or more devices at the same time), they are usually wireless chargers with fixing devices. Most of these fixing devices use traditional connection methods such as screw fixing, snap connection or one-piece molding. When one of the wireless devices is damaged, users often cannot accept a device with partial function loss and buy a new charging device, which will cause unnecessary waste; at the same time, it is also impossible to disassemble a single charger for use (such as traveling), which also reduces the convenience of use.

[0005] Therefore, the existing technology needs to be improved and developed. Utility Model Content

[0006] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide a wireless charging device to solve the technical problems that the existing wireless chargers cannot be used in a variety of usage scenarios and have poor portability.

[0007] The technical solutions adopted by the utility model to solve the above problems are as follows:

[0008] A wireless charging device, comprising:

[0009] A charging base, the charging base comprising a first shell and a wireless charging coil, a control module, a first metal contact assembly and a magnet assembly arranged in the first shell, the magnet assembly comprising at least one magnet, the control module and the wireless charging coil are electrically connected, one end of the first metal contact assembly is electrically connected to the wireless charging assembly, and the other end is provided with at least two first metal contacts, and the at least two first metal contacts are arranged on the surface of the first shell;

[0010] A first docking structure, provided on the first shell;

[0011] A power supply base, the power supply base comprising a second shell and a power supply component and a second metal contact component arranged in the second shell, one end of the second metal contact component is electrically connected to the power supply component, and the other end is provided with at least two second metal contacts, and the at least two second metal contacts are arranged on the surface of the second shell;

[0012] A second docking structure, provided on the second shell, the second docking structure being detachably connected to the first docking structure;

[0013] When the first docking structure and the second docking structure are in a connected state, the first metal contact and the second metal contact are in contact, so as to enable the power supply seat to supply power to the charging seat.

[0014] Optionally, the first docking structure includes a first magnetic attraction component, and the first magnetic attraction component and the at least two first metal contacts are both arranged on the bottom surface of the first shell;

[0015] The second docking structure includes a second magnetic attraction component, and the second magnetic attraction component and the at least two second metal contacts are both arranged on the top surface of the second shell;

[0016] When the first magnetic attraction component and the second magnetic attraction component are magnetically connected, the at least two first metal contacts are in contact with the at least two second metal contacts.

[0017] Optionally, the first magnetic attraction component includes a permanent magnet, and the second magnetic attraction component includes a ferromagnetic metal block or a permanent magnet; or, the second magnetic attraction component includes a permanent magnet, and the first magnetic attraction component includes a ferromagnetic metal block or a permanent magnet.

[0018] Optionally, the first docking structure includes a rotation groove, the rotation groove and the at least two first metal contacts are both arranged on the bottom surface of the first shell, the rotation groove is arranged around the at least two first metal contacts, a limiting clamping protrusion is arranged in the rotation groove, and a clamping channel is formed between the limiting clamping protrusion and the groove bottom of the rotation groove;

[0019] The second docking structure includes a rotating block, which protrudes from the top surface of the second shell. The rotating block can rotate in the rotating groove and can be transferred into the engaging channel to achieve the connection between the first docking structure and the second docking structure.

[0020] Optionally, the at least two first metal contacts are linearly arranged on the side of the first shell; the first docking structure includes a card slot, and the second docking structure includes a card strip, and the card strip is slidably connected to the card slot, and when the card strip is inserted into the card slot, the at least two first metal contacts are in contact with the at least two second metal contacts; or, the first docking structure includes a guide rail, and the second docking structure includes a slide groove, and the slide groove is slidably connected to the guide rail, and when the slide groove is connected to the slide rail, the at least two first metal contacts are in contact with the at least two second metal contacts.

[0021] Optionally, the card slot extends from the edge of the first shell toward the middle of the first shell; the direction on the first shell that is the same as the extension direction of the card slot is the first direction, and the length of the card slot exceeds 1 / 2 of the length of the first shell in the first direction; or, the guide rail extends from the edge of the first shell toward the middle of the first shell; the direction on the first shell that is the same as the extension direction of the guide rail is the first direction, and the length of the guide rail exceeds 1 / 2 of the length of the first shell in the first direction.

[0022] Optionally, two card slots are provided, and the two card slots are respectively provided on both sides of the first metal contact assembly, and two card strips are provided, and the two card strips are respectively provided on both sides of the second metal contact assembly; or, two guide rails are provided, and the two guide rails are respectively provided on both sides of the first metal contact assembly, and two slide rails are provided, and the two slide rails are respectively provided on both sides of the second metal contact assembly.

[0023] Optionally, the wireless charging device also includes a locking structure for fixing the first docking structure and the second docking structure; the locking structure includes one of a wave dot structure, a spring structure, a magnetic structure or a snap structure; the locking structure is arranged on the first docking structure; and / or the locking structure is arranged on the second docking structure.

[0024] Optionally, a connecting groove is provided on the bottom surface of the first shell, and the connecting groove extends from the edge of the first shell toward the middle of the first shell, and the first metal contact assembly is provided on a groove wall of the connecting groove away from the edge of the first shell.

[0025] Optionally, the wireless charging device further includes a bracket, the bracket is rotatably connected to the first shell, and the first shell is provided with a bracket receiving groove for receiving the bracket.

[0026] Optionally, a magnetic attraction component is further provided inside the charging base, and the magnetic attraction component includes at least one magnet.

[0027] Optionally, the first shell includes a face cover and a bottom cover, the face cover and the bottom cover are spliced ​​to form a cavity, the wireless charging coil, the control module, the magnet assembly and the first metal contact assembly are all arranged in the cavity, the wireless charging coil is arranged close to the face cover, the transmitting direction of the wireless charging coil is toward the face cover, and the first docking structure and the at least two first metal contacts are arranged on the bottom cover.

[0028] In summary, the beneficial effects of the utility model are:

[0029] The wireless charging device of the utility model can stably mount the charging base on the power supply base by providing a power supply base, ensuring that the charging base is not easy to slide during use; moreover, the user can install the charging base through the power supply base in a location such as the center console of the car for use, so as to meet the needs of various charging scenarios; secondly, through the detachable connection design of the first docking structure and the second docking structure, the charging base can be fixed on the power supply base for use, and can also be removed and used separately, thereby improving the portability of use; in addition, when any component of the charging base or the power supply base is damaged, the user can replace the damaged component separately without replacing the entire component, which saves costs and conforms to the concept of environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of the wireless charging device of the utility model;

[0032] Figure 2 This is a schematic diagram of the structure of a charging base and a power supply base in one embodiment of the utility model;

[0033] Figure 3 This is an exploded view of the charging stand in the utility model;

[0034] Figure 4 This is one of the structural schematic diagrams of the charging base in the utility model;

[0035] Figure 5 This is a schematic structural diagram of a charging base and a power supply base in another embodiment of the utility model;

[0036] Among them: 100, charging seat; 110, wireless charging component; 111, wireless charging coil; 112, control module; 120, first metal contact component; 121, first metal contact; 130, magnet assembly; 140, bottom cover; 141, rotating groove; 142, limiting convex; 143, connecting channel; 150, surface cover; 200, first docking structure; 300, power supply seat; 310, second metal contact; 400, second docking structure; 410, rotating block. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the solution of the utility model, the following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, other embodiments obtained by ordinary technicians in the field without creative work are all within the scope of protection of the utility model.

[0038] See also Figure 1 , Figure 2 and Figure 3In one embodiment of the utility model, a wireless charging device is disclosed, including a charging seat 100, wherein the charging seat 100 includes a first shell and a wireless charging coil 111 disposed in the first shell, a control module, a first metal contact assembly 120 and a magnet assembly 130, wherein the magnet assembly 130 includes at least one magnet, the control module 112 is electrically connected to the wireless charging coil 111, one end of the first metal contact assembly 120 is electrically connected to the wireless charging assembly 110, and the other end is provided with at least two first metal contacts 121, wherein the at least two first metal contacts 121 are disposed on the surface of the first shell; a first docking structure 200 is disposed on the first shell; a power supply seat 300, wherein the The power supply base 300 includes a second shell, a power supply component and a second metal contact 310 component arranged in the second shell, one end of the second metal contact 310 component is electrically connected to the power supply component, and the other end is provided with at least two second metal contacts 310, and the at least two second metal contacts 310 are arranged on the surface of the second shell; a second docking structure 400 is arranged on the second shell, and the second docking structure 400 is detachably connected to the first docking structure 200; wherein, when the first docking structure 200 and the second docking structure 400 are in a connected state, the first metal contact 121 and the second metal contact 310 are in contact, so as to enable the power supply base 300 to supply power to the charging base 100.

[0039] See also Figure 3 The wireless charging component 110 of the wireless charging device includes a wireless charging coil 111 and a control module 112, and the control module 112 is electrically connected to the wireless charging coil 111 and the first metal contact component 120. The power supply component in this embodiment includes a power supply and a power supply control board, and the power supply control board is used to control the power supply to supply power to the charging seat 100, and the power supply includes a power supply inside the power supply seat 300 or a device for connecting an external power supply.

[0040] The control module 112 in this embodiment is used to control the wireless charging coil 111 to charge the device to be charged. The control module 112 includes a PCB board, the first metal contact assembly 120 includes at least two first metal probes, one end of the first metal probe is connected to the PCB board, and the other end is arranged on the surface of the charging seat 100, and the second metal contact 310 assembly includes at least two second metal probes, the second metal probe is connected to the power control board, and the other end is arranged on the surface of the power supply seat 300. When the metal probe on the power supply seat 300 contacts the metal probe on the charging seat 100, the circuit on the PCB board will establish a connection with the power supply seat 300, thereby allowing the power supply seat 300 to supply power to the charging seat 100.

[0041] The magnet assembly 130 in this embodiment is used to achieve more accurate position alignment of the wireless charging coupling coil for a device to be charged with a corresponding magnetic attraction function (e.g., iPhone 15), thereby improving the efficiency of wireless charging. Moreover, when used in a car, it effectively prevents the electronic device from falling or moving due to bumps or sudden braking during the driving of the car.

[0042] In one embodiment, the charging stand 100 also includes a first covering member, which is detachably connected to the first shell and is used to cover the first metal contact 121. When the first metal contact 121 does not need to be connected to the second metal contact 310, the first covering member covers the first metal contact 121 to protect it; when the first metal contact 121 needs to be connected to the second metal contact 310, the first covering member can be removed.

[0043] In one embodiment, the power supply socket 300 also includes a second covering member, which is detachably connected to the second shell and is used to cover the second metal contact 310. When the second metal contact 310 does not need to be connected to the first metal contact 121, the second covering member covers the second metal contact 310 to protect it; when the second metal contact 310 needs to be connected to the first metal contact 121, the second covering member can be removed.

[0044] In one embodiment, a rechargeable battery and a charging interface may be provided in the charging base 100, and the rechargeable battery and the charging interface are electrically connected to the control module 112, so that when an external data cable is inserted into the charging interface, the charging base 100 can perform wired charging for an external electronic device, or an external power source can power the rechargeable battery.

[0045] In the specific implementation process, the charging stand 100 can be placed on a desktop for use alone, or installed on the power supply stand 300 for use. When it needs to be installed on the power supply stand 300 for use, the first docking structure 200 of the charging stand 100 is plugged into the second docking structure 400 on the power supply stand 300 for fixed connection. When the first docking structure 200 and the second docking structure 400 are docked and maintained in a docking state, the first metal contact 121 on the surface of the charging stand 100 contacts the second metal contact 310 on the surface of the power supply stand 300, so that the power supply stand 300 supplies power to the charging stand 100. After the charging stand 100 is installed and fixed, the device to be charged is placed on the charging stand 100 for charging.

[0046] In one embodiment, the power supply seat 300 includes a base and a support assembly, the bottom end of the support assembly is rotatably connected to the base, the top end of the support assembly is provided with the second docking structure 400, the power supply assembly and the second metal contact 310 assembly, and the base is provided with a base charging coil, and the base charging coil is used to wirelessly charge the device to be charged.

[0047] In another embodiment, the power supply seat 300 further includes a connecting piece, and the connecting piece includes one of a clamping structure, a locking structure, a snap structure or a suction cup structure.

[0048] In the specific implementation process, when the charging base 100 needs to be installed on the air outlet of the car for use, first fix the connecting parts on the power supply base 300 to the fence of the car's air outlet and turn on the power supply to achieve the fixed connection of the power supply base 300, and then fix the charging base 100 to the power supply base 300. After fixing the charging base 100, the device to be charged can be placed on the charging base 100 for charging.

[0049] The charging stand 100 of this embodiment may be of a regular shape, for example, the charging stand 100 may be of a cylindrical structure, a rectangular parallelepiped structure, or a truncated cone structure, etc. Of course, the charging stand 100 may also be of an irregular shape. The embodiment of the present application does not limit the specific shape of the charging stand 100.

[0050] See also Figure 3 In one embodiment, the first shell includes a surface cover 150 and a bottom cover 140, the surface cover 150 and the bottom cover 140 are spliced ​​to form a cavity, the wireless charging coil 111, the control module 112, the magnet assembly 130 and the first metal contact assembly 120 are all arranged in the cavity, the wireless charging coil 111 is arranged close to the surface cover 150, the emission direction of the wireless charging coil 111 is toward the surface cover 150, and the first docking structure 200 and the at least two first metal contacts 121 are arranged on the bottom cover 140.

[0051] In another embodiment, the charging stand 100 includes a face cover 150, a middle frame and a bottom cover 140 connected in sequence from top to bottom, the face cover 150, the middle frame and the bottom cover 140 are spliced ​​to form a cavity, the wireless charging coil 111, the control module 112, the magnet assembly 130 and the first metal contact assembly 120 are all arranged in the cavity, the wireless charging coil 111 is arranged close to the face cover 150, the transmitting direction of the wireless charging coil 111 is toward the face cover 150, the first docking structure 200 is arranged on the bottom cover 140 or on the middle frame, and the first metal contact 121 is arranged on the bottom cover 140 or on the middle frame.

[0052] In this embodiment, the first docking structure 200 includes a first magnetic attraction component, and the first magnetic attraction component and the at least two first metal contacts 121 are both arranged on the bottom surface of the first shell; the second docking structure 400 includes a second magnetic attraction component, and the second magnetic attraction component and the at least two second metal contacts 310 are both arranged on the top surface of the second shell; when the first magnetic attraction component and the second magnetic attraction component are magnetically connected, the at least two first metal contacts 121 are in contact with the at least two second metal contacts 310.

[0053] The first magnetic attraction component includes a permanent magnet, and the second magnetic attraction component includes a ferromagnetic metal block or a permanent magnet; or, the second magnetic attraction component includes a permanent magnet, and the first magnetic attraction component includes a ferromagnetic metal block or a permanent magnet.

[0054] Ferromagnetism refers to a specific magnetic state, which is the property that some materials can be magnetized under the action of an external magnetic field, and can still retain their magnetized state after the external magnetic field disappears, that is, it has a spontaneous magnetization phenomenon. Iron is the most well-known material with ferromagnetism, but in addition to iron, there are other metals and alloys that also exhibit ferromagnetism, such as nickel, cobalt and their alloys. These metals with ferromagnetism are collectively called ferromagnetic metal blocks. They can still maintain their magnetized state in the absence of an external magnetic field, showing strong magnetism.

[0055] In this embodiment, a permanent magnet can be set in a specific area of ​​the first shell, and a permanent magnet or a ferromagnetic metal block can be set in a specific area of ​​the second shell, or a permanent magnet can be set in a specific area of ​​the second shell, and a permanent magnet or a ferromagnetic metal block can be set in a specific area of ​​the first shell, and the permanent magnet or ferromagnetic metal block can be embedded.

[0056] In a specific embodiment, the first magnetic attraction component includes two first magnets, the two first magnets are relatively arranged on the bottom surface of the first shell, and at least two first metal contacts 121 are linearly arrayed along the connection line between the two first magnets. The second magnetic attraction component is provided with two second magnets, the two second magnets are relatively arranged on the top surface of the second shell, and at least two second metal contacts 310 are linearly arrayed along the connection line between the two second magnets. At the same time, the first shell and the second shell are provided with foolproof components, such as a groove is provided on the bottom surface of the first shell, and a protrusion is provided on the top surface of the second shell. When the first protrusion is aligned with the first groove, the first docking structure 200 and the second docking structure 400 are docked. Therefore, when the two first magnets are magnetically attracted to the two second magnets, the two first metal contacts 121 and the two second metal contacts 310 can always be accurately contacted.

[0057] By arranging the two first magnets and the two first metal contacts 121 on a straight line, and correspondingly arranging the two second magnets and the two second metal contacts 310 on a straight line, when the first magnets and the second magnets are magnetically attracted, the two straight lines overlap, so that the first metal contacts 121 and the second metal contacts 310 can be quickly and accurately docked.

[0058] See also Figure 4 In this embodiment, the first docking structure 200 includes a rotation groove 141, the rotation groove 141 and the at least two first metal contacts 121 are both arranged on the bottom surface of the first shell, the rotation groove 141 is arranged around the at least two first metal contacts 121, a limiting clamping protrusion 142 is arranged in the rotation groove 141, and a clamping channel 143 is formed between the limiting clamping protrusion 142 and the groove bottom of the rotation groove 141; please refer to Figure 2 The second docking structure 400 includes a rotating block 410, which protrudes from the top surface of the second shell. The rotating block 410 can rotate in the rotating groove 141, and the rotating block 410 can be transferred into the engaging channel 143 to realize the connection between the first docking structure 200 and the second docking structure 400.

[0059] In the specific implementation process, please refer to Figure 4 The first metal contact 121 is a point-shaped contact, the second metal contact 310 is also a point-shaped contact, the limiting protrusions 142 are arranged in two opposite directions, and the three first metal contacts 121 are arranged in a linear array along a direction perpendicular to the connection line of the two limiting protrusions 142, see Figure 2 , two rotating blocks 410 are arranged opposite to each other, and the three second metal contacts 310 are arranged in a linear array along the direction perpendicular to the connection line of the two rotating blocks 410. When the charging seat 100 needs to be fixed on the power supply seat 300, the rotating groove 141 on the charging seat 100 is aligned with the rotating block 410 on the power supply seat 300, so that the rotating block 410 is inserted into the rotating groove 141. At this time, the arrangement direction of the three second metal contacts 310 is perpendicular to the arrangement direction of the first metal contacts 121; then the charging seat 100 is rotated, and during the rotation process, the rotating block 410 on the power supply seat 300 is rotated into the card channel 143 in the rotating groove 141. When the charging seat 100 is rotated 90 degrees, the rotating block 410 rotates into place. At this time, the three first metal contacts 121 are in contact with the three second metal contacts 310 one by one, realizing the electrical connection between the first charging contact and the second charging contact.

[0060] In this embodiment, in order to avoid the conflict between the positive and negative poles of the metal contacts, the clamping channel 143 and the rotating clamp block 410 are provided with a foolproof structure. For example, the channel sizes of the two clamping channels 143 are different, and the sizes of the two rotating clamp blocks 410 are also different. The sizes of the two rotating clamp blocks 410 correspond to the sizes of the two clamping channels, that is, each rotating clamp block 410 can only be rotated into the clamping channel 143 that matches its size, and the rotating clamp block 410 can only be rotated into the clamping channel 143 in a fixed rotation direction (for example, counterclockwise). Therefore, when the two rotating clamp blocks 410 are rotated into the two clamping channels 143, the three first metal contacts 121 and the three second metal contacts 310 can always be accurately contacted.

[0061] The connection between the rotating groove 141 and the rotating block 410 is simple to operate. When the rotating block 410 is fully inserted into the rotating groove 141 and rotated into place, the connection between the charging seat 100 and the power supply seat 300 becomes firm and reliable, and no other locking structure is required to ensure the stability and safety of the charging process.

[0062] Of course, in another embodiment, the first metal contact 121 is a ring-shaped contact, and the second metal contact 310 is a point-shaped contact; or, the first metal contact 121 is a point-shaped contact, and the first metal contact 121 is a ring-shaped contact. When the charging seat 100 needs to be fixed on the power supply seat 300, the rotating groove 141 on the charging seat 100 is aligned with the rotating block 410 on the power supply seat 300, so that the rotating block 410 is inserted into the rotating groove 141. At this time, the point-shaped metal contact is in contact with the ring-shaped metal contact; then the charging seat 100 is rotated, and during the rotation process, the point-shaped metal contact and the ring-shaped metal contact always maintain a contact state. When the charging seat 100 rotates a preset angle (for example, 90 degrees), the adapter block rotates into place, the first docking structure 200 and the second docking structure 400 are stably connected, and the first metal contact 121 and the second metal contact 310 achieve a stable electrical connection.

[0063] See also Figure 5 In this embodiment, the at least two first metal contacts 121 are linearly arranged on the side of the first shell; the first docking structure 200 includes a card slot, and the second docking structure 400 includes a card strip, and the card strip is slidably connected to the card slot. When the card strip is inserted into the card slot, the at least two first metal contacts 121 are in contact with the at least two second metal contacts 310; or, the first docking structure 200 includes a guide rail, and the second docking structure 400 includes a slide groove, and the slide groove is slidably connected to the guide rail. When the slide groove is connected to the slide rail, the at least two first metal contacts 121 are in contact with the at least two second metal contacts 310.

[0064] In one embodiment, the first docking structure 200 is a card slot, and the second docking structure 400 is a card strip. When the charging seat 100 needs to be fixed on the power supply seat 300 for use, the card slot of the charging seat 100 is aligned with the card strip on the power supply seat 300, so that the card strip is inserted into the card slot from the notch of the card slot. By engaging the card strip with the card slot, a detachable connection between the charging seat 100 and the power supply seat 300 is achieved. The docking operation of the card strip and the card slot is simple and convenient for disassembly.

[0065] In another embodiment, the first docking structure 200 may be a guide rail, and the second docking structure 400 may be a slide groove. When the charging seat 100 needs to be fixed on the power supply seat 300 for use, the guide rail of the charging seat 100 is aligned with the slide groove on the power supply seat 300, so that the guide rail is inserted into the slide groove from the notch of the slide groove and is fixed in a preset position through a wave dot structure or a snap structure. The detachable connection between the charging seat 100 and the power supply seat 300 is achieved through the engagement of the guide rail and the slide groove. The docking operation of the guide rail and the slide groove is simple and convenient for disassembly.

[0066] The above-mentioned embodiments are only two specific embodiments of the detachable connection between the first docking structure 200 and the second docking structure 400 in the present invention. The first docking structure 200 is not limited to a slot or a guide rail, and the second docking structure 400 is not limited to a strip or a slide groove. The first docking structure 200 and the second docking structure 400 may also be other structures that can slide and engage with each other, and no specific limitation is made here.

[0067] In this embodiment, the card slot extends from the edge of the first shell toward the middle of the first shell; the direction on the first shell that is the same as the extension direction of the card slot is the first direction, and the length of the card slot exceeds 1 / 2 of the length of the first shell in the first direction; or, the guide rail extends from the edge of the first shell toward the middle of the first shell; the direction on the first shell that is the same as the extension direction of the guide rail is the first direction, and the length of the guide rail exceeds 1 / 2 of the length of the first shell in the first direction.

[0068] In a specific implementation process, when the charging stand 100 is placed on the power supply stand 300 for use, in order to ensure the connection stability, the center of gravity of the charging stand 100 should fall within the support range of the power supply stand 300. In other words, the length of the slot should exceed half of the length of the charging stand 100 in the first direction, or the length of the guide rail should exceed half of the length of the charging stand 100 in the first direction.

[0069] When the length of the card bar inserted into the card slot is greater than half the length of the charging stand 100, the card bar provides a wider support area, making it easier for the center of gravity of the charging stand 100 to fall within the support surface, thereby achieving a stable connection.

[0070] In this embodiment, two card slots are provided, and the two card slots are respectively provided on both sides of the first metal contact assembly 120, and two card strips are provided, and the two card strips are respectively provided on both sides of the second metal contact 310 assembly; or, two guide rails are provided, and the two guide rails are respectively provided on both sides of the first metal contact assembly 120, and two slide rails are provided, and the two slide rails are respectively provided on both sides of the second metal contact 310 assembly.

[0071] The two card slots or two guide rails are respectively located on both sides of the first metal contact assembly 120, which can not only enhance the connection stability between the charging stand 100 and the power supply stand 300 and prevent the charging stand 100 from shaking or tilting, but also enable the first metal contact assembly 120 and the second metal contact 310 to be more balanced in force on both sides when docking, making the docking operation easier and faster, thereby improving the user experience.

[0072] In this embodiment, the wireless charging device also includes a locking structure for fixing the first docking structure 200 and the second docking structure 400; the locking structure includes one of a wave dot structure, a spring structure, a magnetic structure or a snap structure; the locking structure is arranged on the first docking structure 200; and / or, the locking structure is arranged on the second docking structure 400.

[0073] In a specific embodiment, the locking structure includes a buckle structure, and the buckle structure includes an elastic protrusion, and the elastic protrusion is arranged in the card slot. When the card strip is pushed into the card slot, the elastic protrusion is squeezed by the card strip, so that it is in a compressed state. At this time, the elastic protrusion in the compressed state has a reverse force on the card strip, and the reverse force causes the elastic protrusion to press the card strip, so that the card strip is fixed in the card slot. When the charging seat 100 needs to be moved out of the power supply seat 300, the charging seat 100 can be pulled or pushed in the opposite direction. When the first docking structure 200 is a guide rail, the elastic protrusion is arranged on the guide rail. The specific working process is consistent with the above-mentioned fastening process of the elastic protrusion and the card strip, which will not be repeated here.

[0074] See also Figure 2 and Figure 5 The first docking structure 200 of the present invention can be integrally formed with the bottom cover 140 of the charging stand 100. For example, the first docking structure 200 and the bottom cover 140 are both plastic parts, and the first docking structure 200 and the bottom cover 140 are integrally formed by injection molding.

[0075] By integrally injection molding the first docking structure 200 and the bottom cover 140 , no additional connection process or connection structure is required, thus reducing processing costs and assembly costs. Furthermore, since there is no connection gap between the two, the surface of the charging stand 100 is smoother.

[0076] See also Figure 5 In this embodiment, a connecting groove is provided on the bottom surface of the first shell, and the connecting groove extends from the edge of the first shell toward the middle of the first shell. The first metal contact assembly 120 is provided on the groove wall of the connecting groove away from the edge of the first shell.

[0077] There is a certain distance between the first metal contact assembly 120 and the edge of the charging stand 100. When the first metal contact assembly 120 is connected to the second metal contact assembly 310, the connection between the first metal contact assembly 120 and the second metal contact assembly 310 can be hidden in the connection groove, ensuring the safety of the connection.

[0078] In this embodiment, the wireless charging device further includes a bracket, and the bracket is rotatably connected to the charging base 100 . The charging base 100 is provided with a bracket storage groove for storing the bracket.

[0079] Specifically, the bracket is rotatably connected to the charging base 100. When the charging base 100 is used alone, the charging base 100 can be used standing on a desktop at a certain angle through the bracket. The charging base 100 is provided with a bracket storage slot. When the bracket is not needed, the bracket can be stored in the bracket storage slot.

[0080] In summary, the wireless charging device of this embodiment includes a charging base 100, a power supply base 300, a first docking structure 200 provided on the charging base 100, and a second docking structure 400 provided on the power supply base 300. The charging base 100 and the power supply base 300 are detachably connected through the first structure and the second structure. When the first docking structure 200 and the second docking structure 400 are in a connected state, the first metal contact 121 and the second metal contact 310 are in contact to achieve electrical connection, thereby enabling the power supply base 300 to supply power to the charging base 100. The utility model adopts a detachable connection design of the first docking structure 200 and the second docking structure 400, so that the charging base 100 can be fixed on the power supply base 300 for use, and can also be removed and used separately, thereby improving the portability and flexibility of use; in addition, by providing the power supply base 300, the charging device allows the user to install the charging base 100 through the power supply base 300 on the center console or air outlet position of the car or use it as a desktop stand, etc., and by changing the power supply base 300 for different application scenarios, the needs of various charging scenarios can be met.

[0081] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0082] It should be noted that the present invention takes a wireless charging device as an example to introduce the specific structure and working principle of the present invention, but the application of this embodiment is not limited to the wireless charging device, and can also be applied to the production and use of other similar workpieces.

[0083] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wireless charging device, characterized in that: include: A charging base, the charging base comprising a first shell and a wireless charging coil, a control module, a first metal contact assembly and a magnet assembly arranged in the first shell, the magnet assembly comprising at least one magnet, the control module and the wireless charging coil are electrically connected, one end of the first metal contact assembly is electrically connected to the wireless charging assembly, and the other end is provided with at least two first metal contacts, and the at least two first metal contacts are arranged on the surface of the first shell; A first docking structure, provided on the first shell; A power supply base, the power supply base comprising a second shell and a power supply component and a second metal contact component arranged in the second shell, one end of the second metal contact component is electrically connected to the power supply component, and the other end is provided with at least two second metal contacts, and the at least two second metal contacts are arranged on the surface of the second shell; A second docking structure, provided on the second shell, the second docking structure being detachably connected to the first docking structure; When the first docking structure and the second docking structure are in a connected state, the first metal contact and the second metal contact are in contact, so as to enable the power supply seat to supply power to the charging seat.

2. The wireless charging device according to claim 1, characterized in that: The first docking structure includes a first magnetic attraction component, and the first magnetic attraction component and the at least two first metal contacts are both arranged on the bottom surface of the first shell; The second docking structure includes a second magnetic attraction component, and the second magnetic attraction component and the at least two second metal contacts are both arranged on the top surface of the second shell; When the first magnetic attraction component and the second magnetic attraction component are magnetically connected, the at least two first metal contacts are in contact with the at least two second metal contacts.

3. The wireless charging device according to claim 2, characterized in that: The first magnetic attraction component includes a permanent magnet, and the second magnetic attraction component includes a ferromagnetic metal block or a permanent magnet; or, the second magnetic attraction component includes a permanent magnet, and the first magnetic attraction component includes a ferromagnetic metal block or a permanent magnet.

4. The wireless charging device according to claim 1, characterized in that: The first docking structure comprises a rotation groove, the rotation groove and the at least two first metal contacts are both arranged on the bottom surface of the first shell, the rotation groove is arranged around the at least two first metal contacts, a limiting clamping protrusion is arranged in the rotation groove, and a clamping channel is formed between the limiting clamping protrusion and the groove bottom of the rotation groove; The second docking structure includes a rotating block, which protrudes from the top surface of the second shell. The rotating block can rotate in the rotating groove and can be transferred into the engaging channel to achieve the connection between the first docking structure and the second docking structure.

5. The wireless charging device according to claim 1, characterized in that: The at least two first metal contacts are linearly arranged on the side of the first shell; the first docking structure includes a card slot, and the second docking structure includes a card strip, and the card strip is slidably connected to the card slot. When the card strip is inserted into the card slot, the at least two first metal contacts are in contact with the at least two second metal contacts; or, the first docking structure includes a guide rail, and the second docking structure includes a slide groove, and the slide groove is slidably connected to the guide rail. When the slide groove is connected to the slide rail, the at least two first metal contacts are in contact with the at least two second metal contacts.

6. The wireless charging device according to claim 5, characterized in that: The card slot extends from the edge of the first shell toward the middle of the first shell; the direction on the first shell that is the same as the extension direction of the card slot is the first direction, and the length of the card slot exceeds 1 / 2 of the length of the first shell in the first direction; or, the guide rail extends from the edge of the first shell toward the middle of the first shell; the direction on the first shell that is the same as the extension direction of the guide rail is the first direction, and the length of the guide rail exceeds 1 / 2 of the length of the first shell in the first direction.

7. The wireless charging device according to claim 5, characterized in that: There are two card slots, which are respectively arranged on both sides of the first metal contact assembly, and there are two card strips, which are respectively arranged on both sides of the second metal contact assembly; or, there are two guide rails, which are respectively arranged on both sides of the first metal contact assembly, and there are two slide rails, which are respectively arranged on both sides of the second metal contact assembly.

8. The wireless charging device according to claim 1, characterized in that: The wireless charging device also includes a locking structure for fixing the first docking structure and the second docking structure; the locking structure includes one of a wave dot structure, a spring structure, a magnetic structure or a snap structure; the locking structure is arranged on the first docking structure; and / or the locking structure is arranged on the second docking structure.

9. The wireless charging device according to claim 1, characterized in that: The bottom surface of the first shell is provided with a connecting groove, and the connecting groove extends from the edge of the first shell toward the middle of the first shell. The first metal contact assembly is arranged on a groove wall of the connecting groove away from the edge of the first shell.

10. The wireless charging device according to claim 1, characterized in that: The wireless charging device further comprises a bracket, which is rotatably connected to the first shell, and the first shell is provided with a bracket receiving groove for receiving the bracket.

11. The wireless charging device according to claim 1, characterized in that: The first shell includes a front cover and a bottom cover, the front cover and the bottom cover are spliced ​​to form a cavity, the wireless charging coil, the control module, the magnet assembly and the first metal contact assembly are all arranged in the cavity, the wireless charging coil is arranged close to the front cover, the transmitting direction of the wireless charging coil is toward the front cover, and the first docking structure and the at least two first metal contacts are arranged on the bottom cover.

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