Wireless charging device

Abstract

The utility model relates to the technical field of chargers, in particular to a wireless charging device. The wireless charging device comprises a shell, a second charging part and a third charging part, the shell comprises a first buckling part and a second buckling part, the first buckling part and the second buckling part form a containing cavity, a first charging part is arranged in the containing cavity, and a first containing groove is formed between the first charging part and the first buckling part; a second accommodating groove is formed between the first charging part and the second buckling part, the second charging part is arranged in the first accommodating groove and is configured to extend out of or retract into the first accommodating groove, and the third charging part is arranged in the second accommodating groove and is configured to extend out of or retract into the second accommodating groove. When the second charging part stretches out and draws back from the first containing groove, the third charging part stretches out and draws back from the second containing groove synchronously. The wireless charging device can charge various electronic devices at the same time, and is small in size and convenient to store.

Description

Technical Field

[0001] This utility model relates to the field of charger technology, and in particular to a wireless charging device. Background Technology

[0002] With the widespread use of smart devices, people often own multiple wirelessly charging devices such as mobile phones, earphones, and watches. Traditional wireless charging devices are often single-function, requiring multiple devices to charge multiple devices simultaneously, resulting in a large number of devices, large space occupation, and inconvenience for carrying. Some existing multi-functional wireless charging devices have shortcomings in terms of storage, and it is difficult to effectively reduce their size, making them unsuitable for carrying around. Therefore, there is a need for a wireless charging device that is easy to store and can charge multiple devices simultaneously. Utility Model Content

[0003] The main purpose of this utility model is to propose a wireless charging device, which aims to solve the technical problems of existing multi-functional wireless charging devices having shortcomings in storage, difficulty in effectively reducing size, and inconvenience for carrying and using when going out.

[0004] To achieve the above objectives, this utility model proposes a wireless charging device, comprising:

[0005] The housing includes a first fastening part and a second fastening part, the first fastening part and the second fastening part forming a cavity, a first charging part being disposed in the cavity, a first receiving groove being formed between the first charging part and the first fastening part, and a second receiving groove being formed between the first charging part and the second fastening part.

[0006] The second charging unit is disposed in the first receiving slot and is configured to extend or retract from the first receiving slot.

[0007] A third charging unit is disposed within the second receiving slot, and the third charging unit is configured to extend or retract from the second receiving slot.

[0008] When the second charging part extends out of the first receiving slot, the third charging part extends out of the second receiving slot simultaneously; when the second charging part retracts into the first receiving slot, the third charging part retracts into the second receiving slot simultaneously.

[0009] In some embodiments, the first charging part is provided with a rotating part, the rotating part is provided with a first linkage wheel and a second linkage wheel, the second charging part is provided with a first linkage groove, the first linkage groove and the first linkage wheel are connected in cooperation, and the third charging part is provided with a second linkage groove, the second linkage groove and the second linkage wheel are connected in cooperation.

[0010] The first linkage wheel is configured to slide within the first linkage groove, and the second linkage wheel is configured to slide within the second linkage groove.

[0011] In some embodiments, the first charging part is provided with a connecting groove, the rotating part is disposed in the connecting groove, a roller is disposed in the connecting groove along the circumference of the connecting groove, and the rotating part and the roller are in contact.

[0012] In some embodiments, the first fastening part is provided with a first sliding part, the second charging part is provided with a second sliding part, the second sliding part and the first sliding part are connected in a cooperative manner, and when the second charging part extends or retracts from the first receiving groove, the second sliding part is configured to slide along the first sliding part;

[0013] The second fastening part is provided with a third sliding part, and the third charging part is provided with a fourth sliding part. The fourth sliding part and the third sliding part are connected in cooperation. When the third charging part extends or retracts from the second receiving groove, the fourth sliding part is configured to slide along the third sliding part.

[0014] In some embodiments, the first fastening part is provided with a first clearance hole, and the second charging part extends or retracts from the first receiving groove through the first clearance hole; the second fastening part is provided with a second clearance hole, and the third charging part extends or retracts from the second receiving groove through the second clearance hole.

[0015] In some embodiments, the second charging unit or the third charging unit is provided with a pull-out portion.

[0016] In some embodiments, the first fastening portion is provided with a first snap-fit ​​member, and the second fastening portion is provided with a second snap-fit ​​member. The second snap-fit ​​member and the first snap-fit ​​member are connected to each other to achieve snap-fit ​​between the first fastening portion and the second fastening portion.

[0017] In some embodiments, the first charging unit is provided with a clearance position, which is used for the first card connector or the second card connector to pass through, so as to realize the mating connection between the first card connector and the second card connector.

[0018] In some embodiments, the first fastening portion is provided with a first magnetic attractor, and the second fastening portion is provided with a second magnetic attractor. The second magnetic attractor and the first magnetic attractor are magnetically connected to achieve a magnetic connection between the first fastening portion and the second fastening portion.

[0019] In some embodiments, the housing is provided with a mounting portion for attaching the wireless charging device.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] In the technical solution of this utility model, the wireless charging device provided by this utility model has a simple structure and is easy to operate. Simply pulling out the second or third charging unit allows both units to extend synchronously from the housing, enabling the first, second, and third charging units to simultaneously provide wireless charging for different electronic devices. Similarly, simply pushing the second or third charging unit allows them to retract synchronously into the housing, reducing the overall size of the wireless charging device, improving its portability, and making it convenient for users in travel, business trips, and other similar scenarios. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a wireless charging device provided in an embodiment of the present invention;

[0024] Figure 2 A cross-sectional view of the overall structure of a wireless charging device provided in an embodiment of this utility model;

[0025] Figure 3 An exploded view of the overall structure of a wireless charging device provided in an embodiment of the present invention from a first-view perspective.

[0026] Figure 4 An exploded view of the overall structure of a wireless charging device provided in an embodiment of the present invention from a second perspective.

[0027] Figure 5 This is a schematic diagram of the structure of the first fastening part in a wireless charging device provided in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the second fastening part in a wireless charging device provided in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the first charging unit in a wireless charging device provided in an embodiment of the present invention;

[0030] Figure 8This is a schematic diagram of the structure of the second charging unit in a wireless charging device provided in an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the third charging unit in a wireless charging device provided in an embodiment of the present invention.

[0032] Explanation of icon numbers:

[0033] 10. Wireless charging device;

[0034] 100. Shell;

[0035] 110. First fastening part; 120. Second fastening part; 130. Cavity; 140. First receiving groove; 150. Second receiving groove;

[0036] 111. First sliding part; 112. First clearance hole; 113. First snap-fit ​​part;

[0037] 121. Third sliding part; 122. Second clearance hole; 123. Second snap-fit ​​part;

[0038] 200. First charging unit;

[0039] 210. Rotating part; 220. Connecting groove; 230. Clearance area;

[0040] 211. First linkage wheel; 212. Second linkage wheel;

[0041] 221. Roller;

[0042] 300. Second charging unit;

[0043] 310. First linkage groove; 320. Second sliding part;

[0044] 400, Third Charging Unit;

[0045] 410. Second linkage groove; 420. Fourth sliding part;

[0046] 500. Pull-out section.

[0047] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0050] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where A and B are simultaneously satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0051] With the widespread use of smart devices, people often own multiple wirelessly charging devices such as mobile phones, earphones, and watches. Traditional wireless charging devices are often single-function, requiring multiple devices to charge multiple devices simultaneously, resulting in a large number of devices, large space occupation, and inconvenience for carrying. Some existing multi-functional wireless charging devices have shortcomings in terms of storage, and it is difficult to effectively reduce their size, making them unsuitable for carrying around. Therefore, there is a need for a wireless charging device that is easy to store and can charge multiple devices simultaneously.

[0052] Based on this, in order to solve the technical problems of existing multi-functional wireless charging devices 10 having shortcomings in storage, difficulty in effectively reducing size, and inconvenience for carrying and using when going out, referring to Figures 1 to 9This utility model provides a wireless charging device 10, which includes a housing 100, a second charging part 300, and a third charging part 400. The housing 100 includes a first fastening part 110 and a second fastening part 120. When fastened, the first fastening part 110 and the second fastening part 120 form a cavity 130. The first charging part 200 is disposed within the cavity 130. A first receiving groove 140 is formed between the first charging part 200 and the first fastening part 110, and a second receiving groove 150 is formed between the first charging part 200 and the second fastening part 120. The first receiving groove 140 and the second receiving groove 150 can be disposed opposite to each other. The second charging part 300 is disposed within the first receiving groove 140 and is configured to extend or retract from within the first receiving groove 140. The third charging part 400 is disposed within the second receiving groove 150 and is configured to extend or retract from within the second receiving groove 150. When the second charging unit 300 extends from the first receiving slot 140, the third charging unit 400 simultaneously extends from the second receiving slot 150; when the second charging unit 300 retracts into the first receiving slot 140, the third charging unit 400 simultaneously retracts into the second receiving slot 150. The first charging unit 200, the second charging unit 300, and the third charging unit 400 can charge different electronic devices respectively. For example, the first charging unit 200 can charge a mobile phone, the second charging unit 300 can charge a watch, and the third charging unit 400 can charge headphones.

[0053] Specifically, in this embodiment, when the wireless charging device 10 is not in use, the second charging part 300 retracts into the first receiving slot 140, and the third charging part 400 retracts into the second receiving slot 150. This facilitates hiding the second charging part 300 and the third charging part 400 within the housing 100, thereby reducing the overall size of the wireless charging device 10. When using this wireless charging device 10 to charge different electronic devices, the second charging part 300 or the third charging part 400 is pulled out, causing them to extend from the housing 100, allowing the electronic device to contact and charge with the second charging part 300 and the third charging part 400. Taking the pulling out of the second charging part 300 as an example, when the second charging part 300 is pulled out, it extends from the first receiving slot 140, and simultaneously, the third charging part 400 extends from the second receiving slot 150. When the second charging unit 300 extends into position from the first receiving slot 140, the third charging unit 400 also extends into position from the second receiving slot 150. At this time, multiple electronic devices can be placed in the first charging unit 200, the second charging unit 300, and the third charging unit 400 respectively, enabling simultaneous charging of multiple electronic devices and improving charging efficiency. When the electronic devices are fully charged, pushing the second charging unit 300 will cause it to retract into the first receiving slot 140, and simultaneously, the third charging unit 400 will retract into the second receiving slot 150. The second charging unit 300 will eventually retract completely into the first receiving slot 140, and the third charging unit 400 will eventually retract completely into the second receiving slot 150, thus facilitating the storage of the second charging unit 300 and the third charging unit 400 and reducing the overall size of the wireless charging device 10.

[0054] The wireless charging device 10 provided in this embodiment has a simple structure and is easy to operate. Simply pulling out the second charging unit 300 or the third charging unit 400 allows them to extend simultaneously from the housing 100, enabling the first charging unit 200, second charging unit 300, and third charging unit 400 to simultaneously provide wireless charging for different electronic devices. Similarly, simply pushing the second charging unit 300 or the third charging unit 400 allows them to retract simultaneously into the housing 100, reducing the overall size of the wireless charging device 10, improving its portability, and making it convenient for users to use in travel, business trips, and other similar scenarios.

[0055] In some embodiments, refer to Figure 3 and Figure 4The first charging unit 200 is provided with a rotating part 210 (for example, the rotating part 210 can be a turntable), and the rotating part 210 is provided with a first linkage wheel 211 and a second linkage wheel 212. The second charging unit 300 is provided with a first linkage groove 310, and the first linkage groove 310 and the first linkage wheel 211 are connected to each other. The third charging unit 400 is provided with a second linkage groove 410, and the second linkage groove 410 and the second linkage wheel 212 are connected to each other. The first linkage wheel 211 is configured to slide within the first linkage groove 310, and the second linkage wheel 212 is configured to slide within the second linkage groove 410. For example, the second charging unit 300 and the third charging unit 400 may be located on opposite sides of the rotating unit 210, with the first linkage groove 310 of the second charging unit 300 facing the side closer to the rotating unit 210 and the second linkage groove 410 of the third charging unit 400 facing the side closer to the rotating unit 210. In this case, the first linkage wheel 211 and the second linkage wheel 212 may be respectively provided on opposite sides of the rotating unit 210, so that the first linkage wheel 211 corresponds to the first linkage groove 310 and the second linkage wheel 212 corresponds to the second linkage groove 410.

[0056] Specifically, in this embodiment, when the second charging unit 300 and the third charging unit 400 need to be extended from the housing 100 for charging the electronic device, taking the pulling of the second charging unit 300 as an example, when the second charging unit 300 is pulled out, the first linkage wheel 211 slides in the first linkage groove 310, thereby driving the rotating part 210 to rotate. When the rotating part 210 rotates, the second linkage wheel 212 slides in the second linkage groove 410, thereby driving the third charging unit 400 to extend out of the housing 100 simultaneously in the opposite direction. In other words, when the second charging unit 300 extends out of the first receiving groove 140, the third charging unit 400 will simultaneously extend out of the second receiving groove 150 in the opposite direction. Similarly, when the electronic device is fully charged and the second charging unit 300 and the third charging unit 400 need to be retracted into the housing 100, taking the second charging unit 300 as an example, when the second charging unit 300 is pushed, the first linkage wheel 211 slides in the opposite direction within the first linkage groove 310, thereby causing the rotating part 210 to rotate in the opposite direction. When the rotating part 210 rotates in the opposite direction, the second linkage wheel 212 slides in the opposite direction within the second linkage groove 410, thereby driving the third charging unit 400 to retract into the housing 100 simultaneously in the opposite direction. In other words, when the second charging unit 300 retracts into the first receiving groove 140, the third charging unit 400 will simultaneously retract into the second receiving groove 150 in the opposite direction.

[0057] The cooperation between the first linkage wheel 211 and the first linkage groove 310 reduces the friction of the first linkage wheel 211 within the first linkage groove 310, thereby improving the telescopic flexibility of the second charging unit 300. Similarly, the cooperation between the second linkage wheel 212 and the second linkage groove 410 reduces the friction of the second linkage wheel 212 within the second linkage groove 410, thereby improving the telescopic flexibility of the third charging unit 400.

[0058] In some embodiments, refer to Figure 7 The first charging unit 200 is provided with a connecting groove 220, and the rotating part 210 is disposed within the connecting groove 220. For example, the rotating part 210 can be snapped into the connecting groove 220. This connection method helps to improve the connection stability between the rotating part 210 and the first charging unit 200, preventing the rotating part 210 from detaching from the first charging unit 200 during rotation. Along the circumference of the connecting groove 220, a roller 221 is provided within the connecting groove 220, and the rotating part 210 contacts the roller 221. For example, along the circumference of the connecting groove 220, multiple rollers 221 can be spaced apart within the connecting groove 220, and all multiple rollers 221 contact the rotating part 210. The roller 221 here acts as a bearing. During the rotation of the rotating part 210, the roller 221 can reduce the friction between the rotating part 210 and the groove wall of the connecting groove 220, thereby improving the rotational flexibility of the rotating part 210 and preventing jamming or other phenomena during rotation. This is beneficial to improving the extension and retraction flexibility of the second charging part 300 and the third charging part 400.

[0059] In some embodiments, refer to Figures 3 to 9 The first engaging portion 110 is provided with a first sliding portion 111, and the second charging portion 300 is provided with a second sliding portion 320. The second sliding portion 320 and the first sliding portion 111 are connected and engaged. When the second charging portion 300 extends or retracts from the first receiving groove 140, the second sliding portion 320 is configured to slide along the first sliding portion 111. For example, the first sliding portion 111 can be a slide rail, and the second sliding portion 320 can be a slide groove. Alternatively, the first sliding portion 111 can be a slide groove, and the second sliding portion 320 can be a slide rail.

[0060] Specifically, in this embodiment, when the second charging part 300 extends or retracts from the first receiving groove 140, the cooperation between the second sliding part 320 and the first sliding part 111 can provide a guiding effect for the second charging part 300, preventing the second charging part 300 from deviating from the sliding trajectory, thereby improving the sliding accuracy of the second charging part 300.

[0061] Similarly, refer to Figures 3 to 9The second engaging portion 120 is provided with a third sliding portion 121, and the third charging portion 400 is provided with a fourth sliding portion 420. The fourth sliding portion 420 and the third sliding portion 121 are connected and engaged. When the third charging portion 400 extends or retracts from the second receiving groove 150, the fourth sliding portion 420 is configured to slide along the third sliding portion 121. For example, the third sliding portion 121 can be a slide rail, and the fourth sliding portion 420 can be a slide groove. Alternatively, the third sliding portion 121 can be a slide groove, and the fourth sliding portion 420 can be a slide rail.

[0062] Specifically, in this embodiment, when the third charging part 400 extends or retracts from the second receiving groove 150, the cooperation between the fourth sliding part 420 and the third sliding part 121 can provide guidance for the third charging part 400, preventing the third charging part 400 from deviating from the sliding trajectory, thereby improving the sliding accuracy of the third charging part 400.

[0063] In some embodiments, refer to Figures 3 to 6 The first fastening part 110 is provided with a first clearance hole 112, through which the second charging part 300 extends or retracts from the first receiving groove 140; the second fastening part 120 is provided with a second clearance hole 122, through which the third charging part 400 extends or retracts from the second receiving groove 150. For example, the first clearance hole 112 and the second clearance hole 122 can both be elongated holes to facilitate the extension and retraction of the second charging part 300 from the first receiving groove 140 via the first clearance hole 112, and to facilitate the extension and retraction of the third charging part 400 from the second receiving groove 150 via the second clearance hole 122.

[0064] Specifically, in this embodiment, during the process of the second charging unit 300 extending and retracting from the first clearance hole 112, and during the process of the third charging unit 400 extending and retracting from the second clearance hole 122, the housing 100 always maintains an integral structure, that is, the housing 100 does not move with the second charging unit 300 or the third charging unit 400, thereby helping to ensure the overall structural stability of the wireless charging device 10. Along the direction from the first fastening part 110 to the first charging unit 200, the distance between the opposite sides of the first clearance hole 112 can be consistent with the depth of the first receiving groove 140, so that the second charging unit 300 can be precisely accommodated within the first receiving groove 140 and can extend and retract precisely from the first clearance hole 112. Similarly, along the direction from the second fastening part 120 to the first charging unit 200, the distance between the opposite sides of the second clearance hole 122 can be consistent with the depth of the second receiving groove 150, so that the third charging unit 400 can be precisely accommodated within the second receiving groove 150 and can extend and retract precisely from the second clearance hole 122. By adopting the above structure, the overall structural compactness of the wireless charging device 10 can be improved, thereby reducing the overall size of the wireless charging device 10 and improving its portability.

[0065] In some embodiments, refer to Figures 1 to 4 ,as well as Figure 9 The second charging unit 300 or the third charging unit 400 is provided with a pull-out portion 500. For example, the pull-out portion 500 may be provided with a pull-out groove. Specifically, in this embodiment, when the user needs to extend or retract the second charging unit 300 and the third charging unit 400, he / she can place his / her hand on the pull-out portion 500. At this time, the pull-out portion 500 can provide a point of leverage for the user's hand, thereby facilitating the user to pull (or push) the second charging unit 300 or the third charging unit 400 and improving the operability of the second charging unit 300 or the third charging unit 400.

[0066] In some embodiments, refer to Figures 3 to 6 The first engaging portion 110 is provided with a first snap-fit ​​member 113, and the second engaging portion 120 is provided with a second snap-fit ​​member 123. The second snap-fit ​​member 123 and the first snap-fit ​​member 113 are connected to each other to achieve snap-fit ​​between the first engaging portion 110 and the second engaging portion 120. For example, the first snap-fit ​​member 113 can be a snap-fit ​​post, and the second snap-fit ​​member 123 can be a snap-fit ​​groove. Alternatively, if the first snap-fit ​​member 113 can be a snap-fit ​​groove, the second snap-fit ​​member 123 can be a snap-fit ​​post.

[0067] Specifically, in this embodiment, when assembling the first fastening part 110 and the second fastening part 120, the first snap-fit ​​member 113 and the second snap-fit ​​member 123 are first aligned, and then force is applied to snap the first snap-fit ​​member 113 and the second snap-fit ​​member 123 together. At this time, the first fastening part 110 and the second fastening part 120 can be fastened to form the housing 100. When disassembling the first fastening part 110 and the second fastening part 120, the surfaces of the first fastening part 110 and the second fastening part 120 are held by hand, and then force is applied to separate the first snap-fit ​​member 113 and the second snap-fit ​​member 123.

[0068] The first engaging part 110 and the second engaging part 120 adopt a snap-fit ​​connection method. On the one hand, it can simplify the installation steps of the first engaging part 110 and the second engaging part 120, reduce the installation difficulty of the first engaging part 110 and the second engaging part 120, and improve the installation efficiency of the first engaging part 110 and the second engaging part 120. On the other hand, it can effectively resist vibration and other conditions, ensuring that the first engaging part 110 and the second engaging part 120 will not easily separate, thereby improving the connection stability of the first engaging part 110 and the second engaging part 120.

[0069] In some embodiments, refer to Figure 3 , Figure 4 as well as Figure 7 The first charging unit 200 is provided with a clearance position 230, which is used for the first latching member 113 or the second latching member 123 to pass through, so as to realize the mating connection between the first latching member 113 and the second latching member 123. For example, the clearance position 230 can be in the form of a clearance groove or a clearance opening. Specifically, in this embodiment, by providing the clearance position 230, it can be ensured that the first latching member 113 can pass smoothly through the first charging unit 200 and latch with the second latching member 123 (or it can be ensured that the second latching member 123 can pass smoothly through the first charging unit 200 and latch with the first latching member 113), ensuring that the first fastening part 110 and the second fastening part 120 can be smoothly and stably connected together.

[0070] In some embodiments, the first fastening part 110 is provided with a first magnetic member, and the second fastening part 120 is provided with a second magnetic member. The second magnetic member and the first magnetic member are magnetically connected to achieve a magnetic connection between the first fastening part 110 and the second fastening part 120.

[0071] Specifically, in this embodiment, when assembling the first fastening part 110 and the second fastening part 120, the first magnetic attractor and the second magnetic attractor are first aligned, and then the first magnetic attractor and the second magnetic attractor will automatically attract together. At this time, the first fastening part 110 and the second fastening part 120 can be fastened together to form the housing 100. When disassembling the first fastening part 110 and the second fastening part 120, the first magnetic attractor and the second magnetic attractor can be separated by holding the surfaces of the first fastening part 110 and the second fastening part 120 and applying gentle force.

[0072] The first fastening part 110 and the second fastening part 120 adopt a magnetic connection method. On the one hand, it saves time and effort, as the first magnetic component and the second magnetic component can be brought close to each other to achieve automatic engagement of the first fastening part 110 and the second fastening part 120. On the other hand, it can ensure that the first fastening part 110 and the second fastening part 120 achieve a non-destructive connection, so that the first fastening part 110 and the second fastening part 120 will not cause physical damage during the connection, thereby improving the structural stability of the first fastening part 110 and the second fastening part 120.

[0073] In some embodiments, the housing 100 is provided with a hook-on portion for attaching the wireless charging device 10. For example, the hook-on portion can be a lanyard or a loop. Specifically, in this embodiment, the wireless charging device 10 can be attached to a backpack via the hook-on portion, so that the user can carry the wireless charging device 10 when going out.

[0074] It should be noted that other aspects of the wireless charging device 10 disclosed in this utility model can be found in the prior art, and will not be repeated here.

[0075] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A wireless charging device, characterized in that, include: The housing includes a first fastening part and a second fastening part, the first fastening part and the second fastening part forming a cavity, a first charging part being disposed in the cavity, a first receiving groove being formed between the first charging part and the first fastening part, and a second receiving groove being formed between the first charging part and the second fastening part. The second charging unit is disposed in the first receiving slot and is configured to extend or retract from the first receiving slot. A third charging unit is disposed within the second receiving slot, and the third charging unit is configured to extend or retract from the second receiving slot. When the second charging part extends out of the first receiving slot, the third charging part extends out of the second receiving slot simultaneously; when the second charging part retracts into the first receiving slot, the third charging part retracts into the second receiving slot simultaneously.

2. The wireless charging device according to claim 1, characterized in that, The first charging unit is provided with a rotating part, the rotating part is provided with a first linkage wheel and a second linkage wheel, the second charging unit is provided with a first linkage groove, the first linkage groove and the first linkage wheel are connected in cooperation, and the third charging unit is provided with a second linkage groove, the second linkage groove and the second linkage wheel are connected in cooperation. The first linkage wheel is configured to slide within the first linkage groove, and the second linkage wheel is configured to slide within the second linkage groove.

3. The wireless charging device according to claim 2, characterized in that, The first charging part is provided with a connecting groove, the rotating part is disposed in the connecting groove, and a roller is disposed in the connecting groove along the circumference of the connecting groove, and the rotating part and the roller are in contact.

4. The wireless charging device according to claim 1, characterized in that, The first fastening part is provided with a first sliding part, and the second charging part is provided with a second sliding part. The second sliding part and the first sliding part are connected in a cooperative manner. When the second charging part extends out or retracts from the first receiving groove, the second sliding part is configured to slide along the first sliding part. The second fastening part is provided with a third sliding part, and the third charging part is provided with a fourth sliding part. The fourth sliding part and the third sliding part are connected in cooperation. When the third charging part extends or retracts from the second receiving groove, the fourth sliding part is configured to slide along the third sliding part.

5. The wireless charging device according to claim 1, characterized in that, The first fastening part is provided with a first clearance hole, through which the second charging part extends or retracts from the first receiving groove; the second fastening part is provided with a second clearance hole, through which the third charging part extends or retracts from the second receiving groove.

6. The wireless charging device according to claim 1, characterized in that, The second charging unit or the third charging unit is provided with a pull-out part.

7. The wireless charging device according to claim 1, characterized in that, The first fastening part is provided with a first snap-fit ​​member, and the second fastening part is provided with a second snap-fit ​​member. The second snap-fit ​​member and the first snap-fit ​​member are connected to each other to realize the snap-fit ​​between the first fastening part and the second fastening part.

8. The wireless charging device according to claim 7, characterized in that, The first charging unit is provided with a clearance position, which is used for the first card connector or the second card connector to pass through, so as to realize the mating connection between the first card connector and the second card connector.

9. The wireless charging device according to claim 1, characterized in that, The first fastening part is provided with a first magnetic suction member, and the second fastening part is provided with a second magnetic suction member. The second magnetic suction member and the first magnetic suction member are magnetically connected to achieve a magnetic connection between the first fastening part and the second fastening part.

10. The wireless charging device according to any one of claims 1 to 9, characterized in that, The housing is provided with a mounting part for attaching the wireless charging device.

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