Single-motor coordinated multi-drive charging equipment

Abstract

This invention discloses a single-motor coordinated multi-drive charging device (100), wherein the single-motor coordinated multi-drive charging device (100) includes a housing (10), a first charging unit (20), a second charging unit (30), a transmission assembly, and a drive motor (40). The housing (10) has a receiving cavity, and the first charging unit (20) and the second charging unit (30) are disposed in the receiving cavity. The transmission assembly is connected to the first charging unit (20) and the second charging unit (30). The drive motor (40) drives the transmission assembly to move, and after the transmission assembly moves, it drives the first charging unit (20) and the second charging unit (30) to extend or retract synchronously into the housing (10). The technical solution of this invention aims to achieve convenient and synchronous charging of multiple devices and reduce manual control.

Description

Technical Field

[0001] This invention relates to the field of charging equipment, and in particular to a charging device that uses a single motor in coordination with multiple drives. Background Technology

[0002] With the increasing number of electronic devices people own, wired charging has become inconvenient, and wireless charging devices are becoming more and more popular. To meet the charging needs of these devices, wireless charging devices have been developed. However, current wireless charging devices have the following problems: (1) They can only charge a single device, and cannot meet the needs of charging multiple wireless devices; (2) They occupy a lot of space, and the space of the charging device is not fully utilized; (3) The charging part is not automated enough and cannot be stored away.

[0003] In the prior art, patent CN219458707U discloses a three-in-one wireless charger with an automatic lifting structure. The automatic lifting structure controls the rotation of the bracket to achieve folding and unfolding. When charging multiple devices, after the bracket is raised, it is necessary to further unfold the earphone charging position. It cannot charge directly and is not intelligent enough, as it does not fully store the charging position. Summary of the Invention

[0004] The main objective of this invention is to propose a single-motor coordinated multi-drive charging device, which aims to solve the problems mentioned above, such as low charging utilization, insufficient space utilization of the charging device, lack of automation in the charging part, and inability to be stored.

[0005] To achieve the above objectives, the present invention proposes a single-motor coordinated multi-drive charging device, the single-motor coordinated multi-drive charging device comprising:

[0006] A housing having a receiving cavity;

[0007] A first charging unit is disposed within the receiving cavity;

[0008] A second charging unit is disposed within the receiving cavity;

[0009] A transmission assembly is connected to the first charging unit and the second charging unit;

[0010] A drive motor is used to drive the transmission assembly to move, and after the transmission assembly moves, it drives the first charging part and the second charging part to extend or retract into the housing.

[0011] Optionally, the transmission assembly includes:

[0012] A first transmission component is connected to the drive motor. The side wall of the first transmission component is provided with an inclined groove. The first charging part is provided with a sliding part. The sliding part moves relative to the inclined groove, so that the first charging part extends out or retracts into the receiving cavity.

[0013] The second transmission component engages with the first transmission component, and the second transmission component synchronously pushes the second charging part to extend or retract into the receiving cavity via a slide rod.

[0014] Optionally, the drive motor drives the first transmission member to rotate, causing the sliding part to move relative to the inclined groove, and the first charging part moves synchronously with the sliding part, rising or falling in the direction perpendicular to the front of the housing; one end of the second transmission member is connected to the slide rod, and the other end is engaged with the first transmission member; the second charging part is provided with a strip-shaped groove, and the slide rod is adapted to the strip-shaped groove; when the first transmission member drives the second transmission member to rotate, the slide rod rotates with the second transmission member and drives the second charging part to extend or retract in the direction perpendicular to the side of the housing.

[0015] Optionally, the first transmission member is annular, and the inclined groove is disposed on the side wall of the first transmission member; and the inclined groove is inclined along the height direction of the side wall of the first transmission member.

[0016] Optionally, the inclined groove is arc-shaped in the horizontal direction, and the distance between the inclined groove and the bottom of the first transmission member gradually increases.

[0017] Optionally, there are multiple inclined grooves, with at least three inclined grooves evenly spaced on the first transmission member, and multiple sliding parts, with at least three sliding parts respectively disposed in three inclined grooves.

[0018] Optionally, the single-motor coordinated multi-drive charging device further includes a first gear and a worm gear. The worm gear is connected to the motor shaft of the drive motor. The first gear is located between the worm gear and the first transmission member and meshes with the worm gear and the first transmission member. The drive motor drives the worm gear to rotate, thereby driving the first transmission member to rotate through the first gear.

[0019] Optionally, the first transmission member is annular, and has a first meshing portion and a second meshing portion. The first meshing portion is disposed on the outer wall of the first transmission member, and the second meshing portion is disposed on the inner wall of the first transmission member. The first meshing portion meshes with the first gear, and the second meshing portion meshes with the second transmission member.

[0020] Optionally, the second transmission component is configured as an eccentric wheel structure, such that the center of the second transmission component is different from the center of the first transmission component;

[0021] The third meshing part and the second meshing part satisfy the formula: WA:WB=RC:RA, so as to set the maximum distance of simultaneous displacement of the first charging part and the second charging part;

[0022] Wherein, WA is the angular velocity of the first transmission member, WB is the angular velocity of the circle of motion trajectory of the slide rod, RA is the radius of the first transmission member, and RC is the distance from the second transmission member to the third meshing part.

[0023] Optionally, the second transmission component is a second gear, one end of the slide rod is provided with meshing teeth, and the other end is rotatably connected to the second charging unit; the second gear meshes with the outer side of the first transmission component and the slide rod at the same time, the second transmission component rotates with the first transmission component and drives the slide rod (61) to rotate; the rotation of the slide rod drives the second charging unit to move.

[0024] Optionally, the surface of the housing has a circular opening through which the first charging unit enters and exits the receiving cavity, and one side of the housing has a rectangular opening through which the second charging unit enters and exits the receiving cavity.

[0025] Optionally, the single-motor coordinated multi-drive charging device further includes a third charging unit, which is rotatably connected to the first charging unit. The third charging unit has a stowed state and an unfolded state. When the third charging unit is rotated to the unfolded state, it supports the first charging unit and the second charging unit for placement.

[0026] The present invention provides a single drive motor that can drive the first charging unit, enabling it to have both a charging and a storage state. The first charging unit is connected to the second charging unit, and the movement of the first charging unit in and out can drive the second charging unit to move in and out of the storage cavity simultaneously. Therefore, the second charging unit also has both a storage and a charging state. In this way, the first and second charging units can be stored and unfolded simultaneously. The first charging unit can fit more closely to the charging device during charging, and the stored wireless charging device is flatter and easier to store, reducing the size of the wireless charging device. Moreover, it can meet the charging needs of multiple wireless devices during charging, making the charging process more automated and user-friendly. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 The explosion of the single-motor coordinated multi-drive charging device 100 of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the first charging unit 20 of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the first transmission component 50 of the present invention;

[0031] Figure 4 This is a partial structural diagram of the charging device 100 with single motor coordinating multiple drives according to the present invention;

[0032] Figure 5 This is a partial structural diagram of the single-motor coordinated multi-drive charging device 100 of the present invention from another perspective;

[0033] Figure 6 This is a schematic diagram of the internal structure of the single-motor coordinated multi-drive charging device 100 of the present invention in its unfolded state.

[0034] Figure 7 This is a schematic diagram of the structure of the second transmission component 60 of the present invention;

[0035] Figure 8 This is a schematic diagram of another embodiment of the second transmission component 60 of the present invention;

[0036] Figure 9 This is a schematic diagram of another embodiment of the charging device 100 with single motor and multiple drives according to the present invention.

[0037] Figure 10 A schematic diagram of the structure of the single-motor coordinated multi-drive charging device 100 in its stored state;

[0038] Figure 11 This is a schematic diagram of the structure of the invention of a single-motor coordinated multi-drive charging device 100 in its unfolded state.

[0039] Explanation of icon numbers:

[0040]

[0041] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0043] It should be noted that if the embodiments of the present invention 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 certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0044] Furthermore, if the embodiments of this invention 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 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. If 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 invention.

[0045] This invention proposes a charging device 100 with a single motor coordinating multiple drives.

[0046] In embodiments of the present invention, such as Figure 1 As shown, the single-motor coordinated multi-drive charging device 100 includes a housing 10, a first charging unit 20, a second charging unit 30, and a drive motor 40. The housing 10 has a receiving cavity, in which the first charging unit 20 and the second charging unit 30 are disposed. The first charging unit 20 can be used to charge devices with wireless charging functions such as mobile phones and tablets, and the second charging unit 30 is used to charge watches. The first charging unit 20 is connected to the drive motor 40, and the drive motor 40 drives the first charging unit 20 and the second charging unit 30 to extend out of the receiving cavity simultaneously to realize the charging of electronic devices.

[0047] When not in use, both the first charging unit 20 and the second charging unit 30 are housed within the casing 10; the entire product is small and portable. When charging is needed, the drive motor 40 drives the first charging unit 20 and the second charging unit 30 to extend synchronously from the receiving cavity; at this time, the first charging unit 20 protrudes from the front of the casing 10, allowing mobile phones, tablets, and other electronic devices to be magnetically attached to the first charging unit 20 for wireless or wired charging. The reason for designing the first charging unit 20 to protrude from the front of the casing 10 during charging is to avoid the camera modules on the back of mobile phones and tablets, which are typically located on the back of the device. The camera module protrudes from the back of the phone. If the first charging unit 20 is flush with the front of the casing, the phone cannot fully fit with the first charging unit 20 when they are magnetically attracted, due to the height of the camera module. In this invention, the first charging unit 20 protrudes from the front of the casing 10 during charging, which provides enough space for the phone's camera module, allowing the phone to fit fully with the first charging unit 20. At the same time, based on the concept of ultimate storage, the first charging unit 20 of this invention is designed as a retractable structure, which descends to be flush with the front of the casing 10 when not in use.

[0048] The second charging unit 30 can extend or retract from the side of the housing 10; after the second charging unit 30 extends out of the housing, the watch can be hung on it; the back of the watch is in contact with the second charging unit 30 to charge or place the watch.

[0049] The front of the housing 10 refers to the side of the first charging unit 20 facing the user. The sides of the housing 10 are perpendicular to the front, that is, the left and right sides of the front. When the first charging unit 20 is charging the mobile phone, the mobile phone faces the user, which makes it convenient for the user to view the mobile phone. The second charging unit 30 extends from the side and is perpendicular to the direction of movement of the first charging unit 20.

[0050] The drive motor 40 can drive the first charging unit 20, enabling it to have both a charging state and a storage state. The movement of the first charging unit 20 can drive the second charging unit 30 to move in and out of the storage cavity simultaneously, so the second charging unit 30 also has both a storage state and a charging state. In this way, the first charging unit 20 and the second charging unit 30 can be stored and unfolded simultaneously. When charging, the first charging unit 20 can fit more closely to the charging device, and the stored device is flatter and easier to store, reducing the size of the device. Moreover, it can meet the needs of charging multiple devices during charging, making the charging process more automated and user-friendly.

[0051] According to the foregoing embodiments, refer to Figure 2 and Figure 3The transmission assembly includes a first transmission member 50, which is connected to a drive motor 40. The side wall of the first transmission member 50 is provided with an inclined groove 51, which is arc-shaped in the horizontal direction. The distance between the inclined groove 51 and the bottom of the first transmission member 50 gradually increases. The first charging part 20 is provided with a sliding part 21, which slides along the inclined groove 51, so that the first charging part 20 extends or retracts into the receiving cavity as the height of the inclined groove 51 increases, thereby raising the front of the housing 10 to charge the mobile phone. Optionally, there are multiple inclined grooves 51, with at least three inclined grooves 51 evenly spaced on the first transmission member 50. There are multiple sliding parts 21, with at least three sliding parts 21 respectively provided on three inclined grooves 51 to ensure the stability of the first charging part 20 during movement. The second transmission member 60 engages with the first transmission member 50, and the second transmission member 60 pushes the second charging part 30 to extend or retract into the receiving cavity synchronously through the slide rod 61.

[0052] There are two ways in which the second transmission member 60 engages with the first transmission member 50. The first way is that the second transmission member 60 is located inside the first transmission member 50 and engages with it. The slide rod 61 is located and drives the second charging unit 30. For example, see reference... Figure 4 and Figure 5 The second transmission member 60 is connected to the housing 10. One end of the second transmission member 60 is engaged with the first transmission member 50. The second charging part 30 is provided with a strip groove 31. The other end of the second transmission member 60 is provided with a slide rod 61. The slide rod 61 is provided in the strip groove 31 to drive the second charging part 30 to extend or retract into the housing 10. The second charging part 30 can move horizontally in and out of the housing 10 within the strip groove 31, or the second charging part 30 can also be provided in the strip groove 31 and extend or retract relative to the housing 10 by rotation.

[0053] In the second method, the second transmission member 60 can be set as a second gear. The second gear is located outside the first transmission member 50 and meshes with the first transmission member 50. One end of the slide rod 61 is provided with meshing teeth that mesh with the second transmission member 60, and the other end is rotatably connected to the second charging part 20. The second transmission member 60 rotates with the first transmission member 50 and drives the slide rod 61 to rotate. After the slide rod 61 rotates, the second charging part 20 rotates relative to the slide rod 61. Due to the action of the thread, the second charging part 20 undergoes linear motion, extending out or retracting into the housing 10.

[0054] For example, refer to Figure 8 The second transmission member 60 is a second gear. One side of the gear of the second transmission member 60 meshes with the outside of the first transmission member 50, and the other side of the gear of the second transmission member 60 meshes with the slide rod 61. The other end of the slide rod 61 extends into the second charging part 30. The second transmission member 60 rotates with the first transmission member 50 and drives the second charging part 30 to move through the slide rod 61.

[0055] In this embodiment, when the drive motor 40 drives the first transmission member 50 to rotate, the sliding part 21 moves along the inclined groove 51 to make the first charging part 20 move in the vertical direction. At the same time, the slide rod 61 moves the second charging part 30 in the horizontal direction through the strip groove 31. Furthermore, the front of the housing 10 has a circular opening, through which the first charging part 20 enters and exits the receiving cavity in the vertical direction. One side of the housing 10 has a rectangular opening, through which the second charging part 30 enters and exits the receiving cavity in the horizontal direction.

[0056] In this embodiment, reference Figure 6 and Figure 7 The second transmission member 60 is provided with a third meshing part 62, which meshes with the second meshing part 53.

[0057] Optionally, the structure of the second transmission member 60 is not limited, and it can be configured as follows: Figure 6 Fan shape, or set to Figure 7 In this embodiment of the medium circular gear and straight shank structure, the second transmission member 60 is an eccentric wheel, that is, the second transmission member 60 is set to mesh with the first transmission member 50, but the centers of the two are not in the same position. In this embodiment, one end of the second transmission member 60 with the third meshing part 62 is semi-circular, and the other end of the second transmission member 60 extends away from the third meshing part 62 and the width gradually decreases, so as to achieve overall structural balance and stability.

[0058] Based on the aforementioned embodiments, the single-motor coordinated multi-drive charging device 100 further includes a first gear 70 and a worm 80. The worm 80 is connected to the motor shaft of the drive motor 40. The first gear 70 is disposed between and meshes with the worm 80 and the first transmission member 50. The first transmission member 50 has a first meshing tooth portion 52 and a second meshing tooth portion 53. The first meshing tooth portion 52 is disposed on the outer wall of the first transmission member 50, and the second meshing tooth portion 53 is disposed on the inner wall of the first transmission member 50. The first meshing tooth portion 52 meshes with the first gear 70, and the second meshing tooth portion 53 meshes with the second transmission member 60. The drive motor 40 drives the worm 80 to rotate, and the worm 80 drives the first transmission member 50 through the first gear 70, so as to drive the first transmission member 50 to rotate and the second transmission member 60 to rotate synchronously. The first gear 70 and the worm 80 cooperate with each other and have efficient transmission performance. By setting multiple transmission gears, the mutual cooperation between the gears can make the transmission structure more compact and improve the space utilization rate.

[0059] Based on the foregoing embodiments, the single-motor coordinated multi-drive charging device 100 further includes a third charging unit 90, which is rotatably connected to the first charging unit 20. The third charging unit 90 has a retracted state and an unfolded state. The retracted state is as follows: Figure 9 As shown, the unfolded state is as follows Figure 10 As shown, when the third charging unit 90 is in the storage state, it is on the same side as the second charging unit 30. When the third charging unit 90 is rotated to the unfolded state, it forms a certain angle with the second charging unit 30 to support the placement of the first charging unit 20 and the second charging unit 30. The third charging unit 90 can charge electronic devices, such as headphones and watches, when it is in the unfolded state.

[0060] In its fully unfolded state, refer to Figure 10 The third charging unit 90 has a platform structure and can be placed on a flat surface. The first charging unit 20 charges electronic devices from the front, the second charging unit 30 extends from the side of the housing 10 and is mainly used to charge watches and wristbands, and the third charging unit 90 is on the back of the housing 10 and is mainly used to charge earphones or earphone cases. Compared with other charging stands, the multiple charging units provided by this invention can charge multiple devices simultaneously, saving charging time.

[0061] In terms of overall structure, the drive motor 40 is driven by the cooperation of the first transmission component 50 and the second transmission component 60, so as to realize the synchronous movement of the first charging unit 20 and the second charging unit 30. Unlike the previous method of moving the bracket of the charging equipment, the traditional driving charging equipment uses a separate motor for each moving device, which has a large layout space, high power consumption, and a large number of motors, resulting in high noise and low stacking space utilization. The single motor coordinating multiple drive charging equipment 100 of the present invention only sets a single motor (drive motor 40) and a gear set (first transmission component 50 and second transmission component 60). It utilizes the characteristics of the transmission ratio of plastic gears and simple mechanical transmission to coordinate the movement of multiple devices. This method has low noise, high degree of freedom in transmission design, can reduce the space used, and facilitates appearance and structural stacking.

[0062] Further, refer to Figure 11 The transmission ratio in this embodiment can be calculated using the following formula:

[0063] WA:WB=RC:RA

[0064] Wherein, RA is the radius of the first transmission member 50, RB is the distance from the center of the second transmission member 60 to the slide rod 61, which is the radius of the circle of the slide rod 61's movement trajectory, and RC is the distance from the second transmission member 60 to the third meshing part 62.

[0065] A circle with radius RA can be denoted as circle A, a circle with radius RB as circle B, and a circle with radius RC as circle C.

[0066] W is the angular velocity, WA is the angular velocity of circle A, that is, the angular velocity of the first transmission component 50, WB is the angular velocity of circle B, that is, the angular velocity of the trajectory circle of the slide rod 61; WC is the angular velocity of circle C, that is, the angular velocity of the third meshing part.

[0067] Since the second meshing tooth 53 of the first transmission member 50 meshes with the third meshing tooth 62 of the second transmission member 60, their linear velocities are equal. According to V (velocity) = R (radius) W (angular velocity), the following relationship can be derived:

[0068] VA = VC;

[0069] WA:WC=RC:RA;

[0070] The transmission ratio iBc = WA:WC = RC:RA;

[0071] Since circle B and circle C share the same center, therefore:

[0072] WB = WC;

[0073] Therefore: WA:WB=RC:RA

[0074] Therefore, given that the values ​​of RA and RC are known, the ratio of the rotation angles of the first transmission member 50 and the second transmission member 60 can be obtained. In other words, the rotation angle of the second transmission member 60 can be obtained from the rotation angle of the first transmission member 50. Furthermore, according to the sector formula, the straight-line distance of the slide rod 61 of the second transmission member 60 can be obtained, which is the straight-line distance of the second charging unit 30.

[0075] This means that, according to the above design, the first charging unit 20 and the second charging unit 30 can be simultaneously displaced to their maximum values ​​under the drive of a single motor; this is also a problem that single-motor drive needs to overcome compared to multi-motor drive.

[0076] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A single motor cooperates with multiple drive charging device (100), characterized in that, The single motor cooperates with the multi-drive charging device (100) comprises: The shell (10) has a receiving cavity; The first charging part (20) is arranged in the receiving cavity; The second charging part (30) is arranged in the receiving cavity, and the second charging part (30) is provided with a strip-shaped groove (31); The transmission assembly is connected with the first charging part (20) and the second charging part (30); The driving motor (40) is used for driving the transmission assembly to act, and the transmission assembly drives the first charging part (20) and the second charging part (30) to extend or retract into the shell (10) after acting; The first transmission member (50) is connected to the driving motor (40), and the side wall of the first transmission member (50) is provided with an inclined groove (51); the first charging part (20) is provided with a sliding part (21); the sliding part (21) moves along the inclined groove (51) to make the first charging part (20) extend or retract into the receiving cavity; The second transmission member (60) is engaged with the first transmission member (50), and the second transmission member (60) synchronously drives the second charging part (30) to extend or retract into the receiving cavity through the slide rod (61); When the driving motor (40) drives the first transmission member (50) to rotate, the sliding part (21) moves along the inclined groove (51) to make the first charging part (20) move towards the vertical direction, and the slide rod (61) makes the second charging part (30) synchronously move towards the horizontal direction through the strip-shaped groove (31).

2. The single motor coordinated multi-drive charging apparatus (100) according to claim 1, characterized in that, The first transmission member (50) is annular, the inclined groove (51) is arranged on the side wall of the first transmission member (50), and the inclined groove (51) is inclined along the height direction of the side wall of the first transmission member (50).

3. The single motor coordinated multi-drive charging apparatus (100) according to claim 1, characterized in that, The driving motor (40) drives the first transmission member (50) to rotate, so that the sliding part (21) moves relatively along the inclined groove (51), and the first charging part (20) moves synchronously with the sliding part (21) to rise or lower in the direction perpendicular to the front of the shell (10); The second transmission member (60) is provided with a third meshing part (62) at one end and is connected with the slide rod (61) at the other end, the third meshing part (62) is engaged with the first transmission member (50), the slide rod (61) is matched with the strip-shaped groove (31), and when the first transmission member (50) drives the second transmission member (60) to rotate, the slide rod (61) rotates with the second transmission member (60) and drives the second charging part (30) to extend or retract in the direction perpendicular to the side of the shell (10).

4. The single motor coordinated multi-drive charging apparatus (100) according to claim 3, characterized in that, The single motor cooperates with the multi-drive charging device (100) further comprises a first gear (70) and a worm (80), the worm (80) is connected to the motor shaft of the driving motor (40), the first gear (70) is arranged between the worm (80) and the first transmission part (50) and is engaged with the worm (80) and the first transmission part (50), the driving motor (40) drives the worm (80) to rotate, so as to drive the first transmission part (50) to rotate through the first gear (70).

5. The single motor coordinated multi-drive charging apparatus (100) according to claim 4, characterized in that, The first transmission part (50) has a first meshing tooth part (52) and a second meshing tooth part (53), the first meshing tooth part (52) is arranged on the outer wall of the first transmission part (50), and the second meshing tooth part (53) is arranged on the inner wall of the first transmission part (50); the first meshing tooth part (52) is engaged with the first gear (70), the second meshing tooth part (53) is engaged with the third meshing tooth part (62) of the second transmission part (60); and the second transmission part (60) is arranged on the inner side of the first transmission part (50).

6. The single motor coordinated multi-drive charging apparatus (100) according to claim 5, characterized in that, The second transmission part (60) is arranged as an eccentric wheel structure, so that the center of the second transmission part (60) is different from the center of the first transmission part (50); The third meshing tooth part (62) and the second meshing tooth part (53) satisfy the formula: WA: WB=RC: RA, so as to set the maximum distance of the simultaneous displacement of the first charging part (20) and the second charging part (30); Wherein, WA is the angular velocity of the first transmission part (50), WB is the angular velocity of the circular track of the slide rod (61), RA is the radius of the first transmission part (50), and RC is the distance from the second transmission part (60) to the third meshing tooth part (62). The second transmission part (60) is a second gear, one end of the slide rod (61) is provided with a meshing tooth, and the other end is rotatably connected with the second charging part (30); the second gear is engaged with the outer side of the first transmission part (50) and the slide rod (61) at the same time, the second transmission part (60) rotates with the first transmission part (50) and drives the slide rod (61) to rotate; the slide rod drives the second charging part (30) to move.

7. The single motor coordinated multi-drive charging apparatus (100) according to claim 1, characterized by, The surface of the shell (10) has a circular opening, the first charging part (20) enters and exits the accommodating cavity through the circular opening, one side of the shell (10) has a rectangular opening, and the second charging part (30) enters and exits the accommodating cavity through the rectangular opening.

8. The single motor coordinated multi-drive charging apparatus (100) according to any one of claims 1 to 7, characterized in that, The single motor cooperates with the multi-drive charging device (100) further comprises a third charging part (90), the third charging part (90) is rotatably connected with the first charging part (20), the third charging part (90) has a storage state and an unfolded state, and the third charging part (90) supports the first charging part (20) and the second charging part (30) when rotating to the unfolded state.

9. The single motor coordinated multi-drive charging apparatus (100) according to any one of claims 1 to 7, characterized in that, ​

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