A charging base monomer and an assembled charging base

Abstract

The utility model discloses a kind of charging base monomer, including base and power structure, base includes bottom disc and bottom disc shell installed on bottom disc, bottom disc shell is equipped with charging groove;Power structure includes battery charging contact piece and circuit board and two power supply sockets installed on bottom disc, integrated with charge-discharge circuit on circuit board, the contact end of battery charging contact piece is stretched to charging groove, two power supply sockets are set as power supply input socket and power supply connection socket, two power supply sockets are exposed respectively in the bottom disc outside;The power output end of power supply input socket is electrically connected with the power input end of charge-discharge circuit, the power output end of charge-discharge circuit is respectively electrically connected with the connection end of battery charging contact piece and the power input end of power supply connection socket.The utility model can be flexibly expanded and assembled, when one or more charging base monomer fails, only need to remove the charging base monomer with fault, without shutdown maintenance, maintenance cost is lower.The utility model also provides a kind of assembled charging base.

Description

Technical Field

[0001] This utility model relates to a charging stand, and more specifically to a single charging stand and an assembled charging stand. Background Technology

[0002] A charging dock is an accessory used to provide power or charge electronic devices. It is typically designed to hold the device in place and transmit electrical energy through contact.

[0003] Currently, commonly used charging docks are generally independent charging docks, which can only charge one electronic device at a time. However, in specific application scenarios that require multiple electronic devices, such as property security guards who need to have a walkie-talkie each, multiple charging docks need to be connected to the power source at the same time when charging multiple electronic devices simultaneously. This can easily lead to insufficient power plugs and / or a large number of charging cables, making the charging locations look rather cluttered.

[0004] Based on this, some people have designed charging docks with at least two charging slots to facilitate the simultaneous charging of multiple electronic devices. However, these charging docks cannot be disassembled, and the number of charging slots is fixed, resulting in poor flexibility and expandability. Furthermore, they require complete shutdown for repairs in case of malfunction, leading to high maintenance costs.

[0005] In view of this, this application has conducted in-depth research on this basis, resulting in this case. Utility Model Content

[0006] The purpose of this invention is to provide a single charging dock and a modular charging dock that can be flexibly expanded and is easy to maintain.

[0007] To achieve the above objectives, the solution of this utility model is:

[0008] A modular charging dock includes a single charging dock unit, which comprises a base and a power structure. The base includes a chassis and a chassis shell mounted on the chassis. The chassis shell has a charging slot that matches an electronic device. The power structure includes a battery charging contact, a circuit board mounted on the chassis, and two power sockets. The circuit board integrates a charging and discharging circuit. The contact ends of the battery charging contact extend into the charging slot. The two power sockets are respectively designated as a power input socket and a power connection socket, with the insertion portions of both the power input socket and the power connection socket protruding outside the chassis. The power output terminal of the power input socket is electrically connected to the power input terminal of the charging and discharging circuit, and the power output terminal of the charging and discharging circuit is electrically connected to the connection terminal of the battery charging contact and the power input terminal of the power connection socket.

[0009] The two power sockets are arranged side by side and are close to each other on the circuit board. Two openings are provided on the lower side of the chassis. The plugs of the power input socket and the power connection socket are respectively assembled one-to-one with the two openings.

[0010] The power input socket and the power connection socket are each connected to a positive terminal, a negative terminal, and a ground terminal, respectively, and the two positive terminals, the two negative terminals, and the two ground terminals all pass through the circuit board.

[0011] The positive terminal of the power input socket is electrically connected to the positive input terminal of the charging and discharging circuit, the negative terminal of the power input socket is electrically connected to the negative input terminal of the charging and discharging circuit, and the ground terminal of the power input socket is electrically connected to the ground terminal of the charging and discharging circuit. The positive terminal, negative terminal, and ground terminal of the power input socket together form the power output terminal of the power input socket, and the positive input terminal, negative input terminal, and ground terminal of the charging and discharging circuit together form the power input terminal of the charging and discharging circuit.

[0012] The positive terminal of the power supply connector is electrically connected to the positive output terminal of the charging and discharging circuit, the negative terminal of the power supply connector is electrically connected to the negative output terminal of the charging and discharging circuit, and the ground terminal of the power supply connector is electrically connected to the ground terminal of the charging and discharging circuit. The positive terminal, negative terminal, and ground terminal of the power supply connector together form the power input terminal of the power supply connector, and the positive output terminal, negative output terminal, and ground terminal of the charging and discharging circuit together form the power output terminal of the charging and discharging circuit.

[0013] The battery charging contact includes two battery charging pads arranged side by side. Each battery charging pad is provided with a connection end and a contact end for connecting to a battery in an electronic device. The connection ends of the two battery charging pads are respectively connected to the circuit board, and the contact ends of the two battery charging pads extend into the charging slot. The connection ends of the two battery charging pads are electrically connected to the positive output terminal and the negative output terminal of the charging and discharging circuit, respectively. The positive output terminal and the negative output terminal of the charging and discharging circuit together form the power output terminal of the charging and discharging circuit.

[0014] The chassis has a through-groove groove on its lower side, and both openings are located on the sidewall of the through-groove.

[0015] A modular charging dock includes at least two charging dock units and several dual-ended power cords. The charging dock units are assembled sequentially, with the power input socket and power connection socket of each pair of adjacent charging dock units being close to each other. The two plugs of each dual-ended power cord are respectively inserted into the plug portion of the power input socket of one charging dock unit and the power connection socket of the adjacent charging dock unit. One plug of one dual-ended power cord is inserted into the power input socket of the charging dock unit located at the front or back, and the other plug is connected to a power supply via an adapter.

[0016] Each charging dock unit has a set of snap-fit ​​holes on two opposite sides of its lower side, and the two sets of snap-fit ​​holes on each charging dock unit are arranged sequentially along the arrangement direction of the dual-head power cord. A fixing member is provided between every two adjacent charging dock units, and each fixing member has an elastic locking part corresponding to the position of each set of snap-fit ​​holes. The fixing member is engaged into the corresponding set of snap-fit ​​holes by each elastic locking part to fix two adjacent charging dock units together.

[0017] Each of the snap-fit ​​hole groups includes two snap-fit ​​holes arranged sequentially along the width direction of the chassis. Two opposing mating protrusions are provided on the same side of the lower surface of each charging dock unit. Each mating protrusion is L-shaped. The two mating protrusions of each charging dock unit form snap-fit ​​channels with the adjacent sidewalls of the lower surface of the chassis. Each snap-fit ​​channel has a snap-fit ​​hole. Each fixing member is integrally connected with an elastic insertion part corresponding to the position of each snap-fit ​​hole. Each elastic insertion part on each fixing member has a deformation notch, and each elastic insertion part on each fixing member has an elastic locking part that engages with the snap-fit ​​hole. When assembling two adjacent charging dock units, the mating protrusions are spliced ​​in pairs and symmetrically arranged along the splicing line of the two charging dock units.

[0018] In each of the charging dock units, one of the mating protrusions on the same side extends an elastic member, and each elastic member is provided with a positioning protrusion for positioning the dual-headed power cord.

[0019] With the above structure, this utility model has the following beneficial effects: 1. When used alone, the power connection socket is idle, and a conventional double-ended power cord is inserted into the power input socket. That is, one end of the double-ended power cord is inserted into the power input socket, and the other end is connected to the power supply equipment or mains power in a conventional manner, thereby realizing the individual charging of the charging base unit; when multiple electronic devices need to be charged, multiple charging base units are spliced ​​together in sequence. Since each charging base unit is equipped with a power input socket and a power connection socket, the power input socket is connected to the power supply equipment or adjacent charging base units. The socket connection allows the power supply socket to be connected to the power input socket of another adjacent charging dock unit, thereby enabling the same power supply to charge multiple charging dock units. Compared with the prior art, this utility model can be flexibly expanded and assembled according to the number of electronic devices to be charged. At the same time, since the charging dock units can be set independently or assembled, when one or more charging dock units fail, only the faulty charging dock unit needs to be removed for repair, which is convenient. The remaining charging dock units can still be used without downtime for maintenance, resulting in lower maintenance costs.

[0020] 2. This utility model uses a double-ended power cord to achieve power connection between two adjacent charging dock units. The double-ended power cord is designed as a detachable plug-in structure. When the charging dock units are set according to the number of charging devices, it is convenient to assemble the individual charging dock units and to connect them sequentially. The installation is simple and convenient.

[0021] 3. This utility model adopts a fixing component to facilitate the fixation of two adjacent charging base units, preventing them from moving during the charging process and causing the dual-head power cord to shake, thus interrupting the charging and ensuring continuous charging of each charging base unit. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1.

[0023] Figure 2 This is a structural schematic diagram from another angle of Embodiment 1.

[0024] Figure 3 This is a schematic diagram of the internal structure of Example 1.

[0025] Figure 4 This is an exploded view of Example 1.

[0026] Figure 5 This is a circuit block diagram of Example 1.

[0027] Figure 6 This is a schematic diagram of the structure of Example 2.

[0028] Figure 7 This is a structural schematic diagram from another angle of Embodiment 2.

[0029] Figure 8 This is a bottom view of Example 2.

[0030] Figure 9 This is a schematic diagram of the fastener in Example 2.

[0031] Figure 10 This is a circuit connection block diagram for Embodiment 2.

[0032] Figure 11 This is the charging circuit in Example 1.

[0033] In the picture:

[0034] 100 - Charging stand unit; 11 - Chassis; 111 - Opening; 112 - Receiving groove; 12 - Chassis shell; 121 - Charging slot; 122 - Mounting port;

[0035] 21-Battery charging pad;

[0036] 3-Circuit board; 41-Power input socket; 411-Plug; 42-Power output socket;

[0037] 5-Double-ended cable;

[0038] 60 - Snap-fit ​​component; 61 - Fixing component; 611 - Flexible snap-fit ​​part; 62 - Flexible insertion part; 621 - Deformation notch part; 63 - Fixing plate;

[0039] 70 - Mating protrusion; 71 - Snap-fit ​​recess; 72 - Snap-fit ​​hole;

[0040] 81 - Plug-in channel; 82 - Snap-in channel;

[0041] 9-Elastic element. Detailed Implementation

[0042] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0043] Example 1

[0044] A charging dock unit, such as Figure 1-5As shown, for ease of description, the charging dock unit 100 in its normal use state is taken as the reference direction of this utility model. The charging dock unit 100 includes a base, which includes a chassis 11 and a chassis shell 12. The chassis shell 12 is fixedly mounted on the chassis 11, and the mounting structure between the chassis shell 12 and the chassis 11 adopts a conventional mounting structure, such as the mounting structure used in conventional charging docks. That is, the lower side of the chassis shell 12 is provided with multiple mounting posts, each mounting post having a threaded hole. The chassis 11 has mounting holes corresponding to the positions of the mounting holes, and bolts are screwed into each corresponding mounting hole and threaded hole. A receiving space is formed between the chassis 11 and the chassis shell 12 for placing the power supply structure described below, and a charging slot 121 is provided on the upper part of the chassis shell 12. The charging slot 121 is used to place electronic devices inside for charging. The structure of the charging slot 12 is the same as that of conventional charging slots 121, so it will not be described in detail. In this embodiment, the above-mentioned electronic device can be a conventional handheld device such as a walkie-talkie.

[0045] For ease of description, the width direction of the base is used as the left-right direction, and the length direction is used as the front-back direction.

[0046] The improvement of this utility model lies in that the modular charging dock also includes a power supply structure, which includes a battery charging contact, a circuit board 3, and two power sockets. The circuit board 3 and the two power sockets are respectively mounted on the upper side of the chassis 11. Preferably, the circuit board 3 is located in the middle of the chassis 11, and a charging and discharging circuit is integrated on the circuit board 3. The battery charging contact has a connecting end and a contact end. The connecting end of the battery charging contact is located on the circuit board, and the contact end of the battery charging contact extends into the charging slot 12 for contact connection with the battery of the electronic device. The two power sockets are respectively designated as a power input socket 41 and a power connection socket 42, and the insertion portions 411 of both the power input socket 41 and the power connection socket 42 are exposed outside the chassis 11. In this embodiment, the circuit board 3 is a commercially available PCB board, and the charging and discharging circuit integrated on it can be a conventional charging and discharging circuit, such as the conventional charging and discharging circuit used in charging docks. For example, in this embodiment, a charging and discharging circuit is used... Figure 11 The charging circuit shown.

[0047] The circuit connection of the power supply structure is as follows: the power output terminal of the power input socket 41 is electrically connected to the power input terminal of the charging and discharging circuit, and the power output terminal of the charging and discharging circuit is electrically connected to the connection terminal of the battery charging contact and the power input terminal of the power connection socket 42, respectively. The power input socket 41 is used to supply power. In this way, the power input from the power input socket 41 provides working power to the charging and discharging circuit, which charges the load (such as electronic equipment) through the battery charging contact, and at the same time, the charging and discharging circuit outputs power from the power connection socket 42.

[0048] Furthermore, the two power sockets are arranged side by side and close to each other. They are located at the front and right sides of the center of the chassis 11. In this embodiment, the power input socket 41 is located behind the power connection socket 42. Both power sockets are commercially available DC power sockets. The chassis 11 has two openings 111 on its lower side. Each power socket and opening 111 is paired one-to-one, meaning the plug portion of each power socket is fitted into the corresponding opening 111. Preferably, the chassis 11 has a receiving groove 112 on its lower side, which extends along the front-to-back direction. The two openings 111 are located on the right side wall of the receiving groove 111, and both openings 111 are through-holes. This allows the plug portion of the power socket to be fixedly installed in the corresponding opening 111 when the power socket is conventionally mounted on the upper side of the chassis 11, facilitating the assembly of the dual-ended power cord. The receiving groove 112 can also store the dual-ended power cord.

[0049] Furthermore, in this embodiment, the battery charging contact includes two battery charging pads 21 arranged side by side, and arranged sequentially from front to back. The connecting ends of the two battery charging pads 21 are respectively soldered to the circuit board 3. In this embodiment, the connecting ends of the two battery charging pads 21 are respectively soldered to the left side of the circuit board 3. The bottom or left side wall of the charging slot 121 of the chassis shell 12 is provided with a mounting opening 122. The connecting ends of the two battery charging pads 21 are respectively limited in the corresponding mounting opening 122. At this time, the connecting ends of the two battery charging pads 21 extend into the charging slot 121. It should be noted that the two mounting openings 122 can be adjusted according to the position of the battery of the electronic device, so that the connecting ends of the battery charging pads 21 in the two mounting openings 122 can be electrically connected to the battery contacts of the electronic device. The charging structure of this part is the structure used in conventional charging sockets, so it will not be described in detail. In this embodiment, the battery charging pad 21, which is generally referred to as a battery contact or charging contact, is a metal contact component used in electronic devices to connect the battery to the charging and discharging circuit, and is a component that is already available on the market.

[0050] Furthermore, the specific connection circuit of the power supply structure is as follows: the positive terminal of the power supply input socket 41 is electrically connected to the positive input terminal of the charging and discharging circuit, the negative terminal of the power supply input socket 41 is electrically connected to the negative input terminal of the charging and discharging circuit, and the ground terminal of the power supply input socket is electrically connected to the ground terminal of the charging and discharging circuit. The positive terminal, negative terminal, and ground terminal of the power supply input socket 41 together form the power output terminal of the power supply input socket 41, and the positive input terminal, negative input terminal, and ground terminal of the charging and discharging circuit together form the power input terminal of the charging and discharging circuit. In this embodiment, the power supply input socket 41 itself is provided with a positive electrode, a negative electrode, and a ground electrode. The positive electrode, negative electrode, and ground electrode are respectively inserted into the circuit board, that is, the circuit board has mounting holes, and the positive electrode, negative electrode, and ground electrode pass through the corresponding mounting holes. The positive electrode, negative electrode, and ground electrode of the power supply input socket 41 correspond to the positive terminal, negative terminal, and ground terminal, respectively.

[0051] The positive terminal of the aforementioned power supply connector 42 is electrically connected to the positive output terminal of the charging and discharging circuit, the negative terminal of the power supply connector 42 is electrically connected to the negative output terminal of the charging and discharging circuit, and the ground terminal of the power supply connector 42 is electrically connected to the ground terminal of the charging and discharging circuit. The positive terminal, negative terminal, and ground terminal of the power supply connector 42 together form the power input terminal of the power supply connector 42, and the positive output terminal, negative output terminal, and ground terminal of the charging and discharging circuit together form the power output terminal of the charging and discharging circuit. In this embodiment, the power supply connector 42 itself is provided with a positive electrode, a negative electrode, and a ground electrode. The positive electrode, negative electrode, and ground electrode are respectively inserted into the circuit board, that is, the circuit board has mounting holes, and the positive electrode, negative electrode, and ground electrode pass through the corresponding mounting holes. The positive electrode, negative electrode, and ground electrode of the power supply connector 42 correspond to the positive terminal, negative terminal, and ground terminal, respectively.

[0052] The connection terminals of the two battery charging pads 21 are electrically connected to the positive and negative output terminals of the charging and discharging circuit, respectively. The positive and negative output terminals of the charging and discharging circuit together form the power output terminal of the charging and discharging circuit. That is, the charging and discharging circuit has two power output terminals, one for connecting to a load (such as an electronic device), and the other for connecting to the next charging dock 100 through a power supply connection socket.

[0053] It should be noted that the positive, negative and grounding plates on the power input socket 41 and power connection socket 42 are all standard configurations of power sockets, so they will not be described in detail in this embodiment; furthermore, the wiring connections in this embodiment are all integrated into the circuit board 3, and the method of integrating wiring into the circuit board 3 is also a standard operation in the circuit board field, so they will not be described in detail.

[0054] This embodiment provides a charging dock unit 100. When used alone, the charging dock unit 100 is equipped with a double-ended power cord. The double-ended power cord is a commercially available cable. The plug of the double-ended power cord is compatible with the plug of the power socket. Thus, one end of the double-ended power cord is inserted into the power input socket 41, and the other end can be inserted into the power supply through an adapter. The power supply can be a power supply device or AC power. The adapter is a commercially available power adapter or charger. The adapter is used to convert AC power to DC power.

[0055] Furthermore, when multiple electronic devices need to be charged, the individual charging dock units 100 are assembled sequentially, and then the power circuits of the individual charging dock units 100 are connected together through the power input socket and power connection socket on them, so as to enable the same power supply to charge the individual charging dock units 100.

[0056] Example 2

[0057] like Figure 6 As shown - Figure 10 As shown, the difference between this embodiment and embodiment two is that the modular charging dock also includes at least two or more charging dock units 10 and several double-headed power cords 5.

[0058] Specifically, the structure of the charging dock unit 100 is the same as that described in Embodiment 1. Each charging dock unit 100 is assembled sequentially. The power input socket 41 and power connection socket 42 in two adjacent charging dock units 100 are close to each other. That is, when each charging dock unit 100 is assembled, the receiving grooves on the two bases 11 are interconnected. The power input socket 41 in the same charging dock unit 100 is located behind the power connection socket 41. In this embodiment, the power input socket 41 is located behind the power connection socket 41 as an example, but it is not limited to this relationship. The specific arrangement is based on the actual situation. The two plugs of each double-ended power cord 5 are respectively inserted into the power input socket 41 of one charging dock unit 100 and the plug of the power connection socket 42 of the adjacent charging dock unit 100 at the rear. In addition, one plug of one double-ended power cord 5 is inserted into the power input socket 41 of the charging dock unit 100 at the front or the back (in this embodiment, the front) and the other plug is connected to the power supply through an adapter.

[0059] Furthermore, to ensure the stability of each charging dock unit 100 after assembly, each pair of adjacent charging dock units 100 is fixed together by the following fixing structure.

[0060] Since all the fixing structures are the same, the fixing structure of a pair of adjacent charging dock units 100 will be used as an example for explanation. Furthermore, the arrangement structure of the front and rear sides of each charging dock unit 100 is the same, and the specific structure is as follows.

[0061] One charging dock unit 100 has a set of snap-fit ​​holes on its rear side and the other charging dock unit 100 has a set of snap-fit ​​holes on its front side. The two sets of snap-fit ​​holes are arranged symmetrically along the splicing line of the two charging dock units 100. A fixing member 61 is provided between the two charging dock units 100. The fixing member 61 can be a fixing block. The fixing member 61 has elastic snap-fit ​​parts 612 at the positions of each set of snap-fit ​​holes. The two charging dock units 100 are detachably installed together by snapping into the corresponding sets of snap-fit ​​holes through the elastic snap-fit ​​parts 612 on the fixing member 61.

[0062] In detail, each snap-fit ​​hole group includes two snap-fit ​​holes 72. The two snap-fit ​​holes 72 on the same charging dock unit 100 are arranged sequentially from left to right and side by side. Among them, the rear side of the lower side of one charging dock unit 100 is integrally connected with two mating protrusions 70, which are arranged back to back. The front side of the lower side of the other charging dock unit 100 is also provided with two mating protrusions 70 in the same manner. Furthermore, the two mating protrusions 70 on the front side of the charging dock unit 100 form snap-fit ​​channels with the rear sidewall of the lower side of the chassis 11, and the two mating protrusions 70 on the rear side of the charging dock unit 100 form another snap-fit ​​channel with the front sidewall of the lower side of the chassis 11. The two snap-fit ​​holes 72 and the two snap-fit ​​channels in the same charging dock unit 100 are matched one-to-one, that is, the two snap-fit ​​holes 72 in the same charging dock unit 100 are respectively opened at the bottom of the corresponding snap-fit ​​channels.

[0063] Furthermore, in the two charging dock units 100, the two mating protrusions 70 on the left side each form an insertion channel 81 that communicates with the corresponding snap-fit ​​channel between the left side wall of their respective chassis 11 and the right side mating protrusions 70. Similarly, the right side mating protrusions 70 form an insertion channel 81 that communicates with the corresponding snap-fit ​​channel 82 between the right side wall of their respective chassis 11. After the two charging dock units 100 are assembled, the two mating protrusions 70 on the front side and their corresponding mating protrusions 70 on the rear side are joined together to form a T-shape. Preferably, the right side snap-fit ​​channel 82 and the two insertion channels 81 together form a snap-fit ​​recess 71, and the left side snap-fit ​​channel 82 and the two insertion channels 81 together form another snap-fit ​​recess 71.

[0064] Furthermore, the aforementioned fastener 61 has elastic insertion portions 62 integrally connected to the four snap-fit ​​holes 72, each elastic insertion portion 62 having a deformation notch 621, and each elastic insertion portion 62 on the fastener 61 having the aforementioned elastic snap-fit ​​portion 612; moreover, the fastener 61 includes a fixing plate 63 and four elastic insertion portions 62, the fixing plate 63 is a square plate, and snap-fit ​​members 60 are integrally connected to the left and right sides of the fixing plate 63, the two snap-fit ​​members 60 are arranged facing each other, and each snap-fit ​​member 60 has a deformation notch 621. Two deformable notches 621 are provided, each extending towards the surface of the fixing plate 63. Each snap-fit ​​member 60 forms the aforementioned elastic insertion portion through the two deformable notches 621. An elastic snap-fit ​​portion 612 is integrally connected to the upper end of the elastic insertion portion, and the four elastic snap-fit ​​portions 612 are arranged face-to-face in pairs. In this embodiment, after the two charging base units 100 are assembled together, the two snap-fit ​​members 621 are respectively inserted into the corresponding snap-fit ​​recesses 71, and each elastic snap-fit ​​portion 612 is respectively snapped into the corresponding snap-fit ​​holes 72. Preferably, after the charging base units 100 are assembled, the mating protrusions 70 are spliced ​​in pairs and symmetrically arranged along the splicing line of the two charging base units 100.

[0065] In a preferred embodiment, an elastic member 9 extends from the left side of the mating protrusion 70 on the right side of the charging base unit 100. This elastic member 9 is located within a receiving groove of the charging base unit 100, and a positioning protrusion (not shown in the figure) is integrally connected to the left end of the upper side of the elastic member 9. This positioning protrusion cooperates with the fixing member 61 to position the dual-ended power cord 5. Preferably, the lower side of the elastic member 9 is flush with the lower side of the mating protrusion 70.

[0066] This embodiment describes a modular charging dock. The assembly of each pair of adjacent charging dock units 100 is identical. Therefore, two charging dock units 100 are used as an example for explanation. The specific assembly process is as follows: the front side of one charging dock unit 100 and the rear side of the other charging dock unit 100 are joined together. At this time, the two mating protrusions on the left side of the two charging dock units 100 together form an inverted T-shape, and the two mating protrusions 70 on the right side together form a T-shape. Then, the two snap-fit ​​pieces in the fixing member 61 are respectively inserted into the corresponding snap-fit ​​channels 82, and each elastic insertion part 62 is respectively inserted into the corresponding insertion channel 81, so that each elastic insertion part 6211 is respectively aligned with... When the fastener 62 applies force to the upper side of the chassis 11, each elastic plug part deforms due to the deformation notch 621, and each elastic snap-fit ​​part 612 enters the corresponding snap-fit ​​hole 72. When the external force is withdrawn, each deformation notch 621 returns to its original position, so that each elastic snap-fit ​​part 612 returns to its original position and abuts against the hole wall of the corresponding snap-fit ​​hole 72, thereby fixing the two charging base units 100 together. At the same time, during the above installation process, the lower side of the fastener 62 presses against the two positioning protrusions, so that the two positioning protrusions together position the dual-head power cord in the receiving groove to prevent the dual-head power cord from shifting.

[0067] The specific wiring installation process of a modular charging dock in this embodiment is as follows: When multiple electronic devices need to be charged, the individual charging dock units 100 are assembled sequentially. That is, the rear sidewall of the front charging dock unit 100 is spliced ​​with the front sidewall of the adjacent charging dock unit 100, and so on, thereby realizing the assembly of each charging dock unit 100. Taking the assembly of three charging dock units 100 as an example, among the three adjacent charging dock units 100, the middle charging dock unit 100 is equipped with two double-ended power cords, one of which... The two ends of one double-ended power cord are inserted into its own power input socket 41 and the power output socket 42 of the rear charging unit 100, respectively. The two ends of another double-ended power cord are inserted into the power connection socket 42 of the middle charging unit 100 and the power input socket 41 of the front charging unit 100, and so on. The power connection socket 41 of the front charging unit 100 is not used, and the adapter is connected to the power input socket 41 of the rear charging unit 100 via the double power cord.

[0068] Furthermore, when a single charging dock unit 100 malfunctions, the dual-headed power cable 5 on that charging dock unit 100 can be removed. Then, the two adjacent charging dock units 100 can be connected using their respective original dual-headed power cables as described above, and they can continue to be used without shutting down the entire unit. At the same time, the malfunctioning charging dock unit 100 can be repaired individually.

[0069] The above description is only a preferred embodiment of this invention. All equivalent changes and modifications made within the scope of the claims of this utility model shall fall within the scope of the claims of this utility model.

Claims

1. A charging base unit, comprising a base and a power supply structure, the base comprising a base plate and a base plate shell mounted on the base plate, a charging slot matching an electronic device being formed on the base plate shell; characterized in that: The power supply structure includes a battery charging contact, a circuit board mounted on the chassis, and two power sockets. The circuit board integrates a charging and discharging circuit. The contact end of the battery charging contact extends into the charging slot. The two power sockets are respectively designated as a power input socket and a power connection socket, with the insertion parts of both the power input socket and the power connection socket protruding outside the chassis. The power output end of the power input socket is electrically connected to the power input end of the charging and discharging circuit, and the power output end of the charging and discharging circuit is electrically connected to the connection end of the battery charging contact and the power input end of the power connection socket.

2. A charging station unit according to claim 1, wherein: The two power sockets are arranged side by side and are close to each other on the circuit board. Two openings are provided on the lower side of the chassis. The plugs of the power input socket and the power connection socket are respectively assembled one-to-one with the two openings.

3. A charging station unit according to claim 2, wherein: The power input socket and the power connection socket are each connected to a positive terminal, a negative terminal, and a ground terminal, respectively, and the two positive terminals, the two negative terminals, and the two ground terminals all pass through the circuit board.

4. A charging station unit according to claim 3, wherein: The positive terminal of the power input socket is electrically connected to the positive input terminal of the charging and discharging circuit, the negative terminal of the power input socket is electrically connected to the negative input terminal of the charging and discharging circuit, and the ground terminal of the power input socket is electrically connected to the ground terminal of the charging and discharging circuit. The positive terminal, negative terminal, and ground terminal of the power input socket together form the power output terminal of the power input socket, and the positive input terminal, negative input terminal, and ground terminal of the charging and discharging circuit together form the power input terminal of the charging and discharging circuit. The positive terminal of the power supply connector is electrically connected to the positive output terminal of the charging and discharging circuit, the negative terminal of the power supply connector is electrically connected to the negative output terminal of the charging and discharging circuit, and the ground terminal of the power supply connector is electrically connected to the ground terminal of the charging and discharging circuit. The positive terminal, negative terminal, and ground terminal of the power supply connector together form the power input terminal of the power supply connector, and the positive output terminal, negative output terminal, and ground terminal of the charging and discharging circuit together form the power output terminal of the charging and discharging circuit.

5. The charging station unit of claim 2, wherein: The battery charging contact includes two battery charging pads arranged side by side. Each battery charging pad is provided with a connection end and a contact end for connecting to a battery in an electronic device. The connection ends of the two battery charging pads are respectively connected to the circuit board, and the contact ends of the two battery charging pads extend into the charging slot. The connection ends of the two battery charging pads are electrically connected to the positive output terminal and the negative output terminal of the charging and discharging circuit, respectively. The positive output terminal and the negative output terminal of the charging and discharging circuit together form the power output terminal of the charging and discharging circuit.

6. A charging station unit according to claim 5, wherein: The chassis has a through-groove groove on its lower side, and both openings are located on the side wall of the through-groove groove.

7. A modular charging station, characterized by: The device comprises at least two charging dock units as described in any one of claims 1-6 and a plurality of dual-ended power cords. The charging dock units are assembled sequentially, with the power input socket and the power connection socket in every two adjacent charging dock units being adjacent to each other. The two plugs of each dual-ended power cord are respectively inserted into the plug portion of the power input socket of one of the charging dock units and the power connection socket of the adjacent charging dock unit. One plug of one dual-ended power cord is inserted into the power input socket of the charging dock unit located at the front or back, and the other plug is connected to the power supply via an adapter.

8. The modular charging station of claim 7, wherein: Each charging dock unit has a set of snap-fit ​​holes on two opposite sides of its lower side, and the two sets of snap-fit ​​holes on each charging dock unit are arranged sequentially along the arrangement direction of the dual-head power cord. A fixing member is provided between every two adjacent charging dock units, and each fixing member has an elastic locking part corresponding to the position of each set of snap-fit ​​holes. The fixing member is engaged into the corresponding set of snap-fit ​​holes by each elastic locking part to fix two adjacent charging dock units together.

9. The modular charging station of claim 8, wherein: Each of the snap-fit ​​hole groups includes two snap-fit ​​holes arranged sequentially along the width direction of the chassis. Two opposing mating protrusions are provided on the same side of the lower surface of each charging dock unit. Each mating protrusion is L-shaped. The two mating protrusions of each charging dock unit form snap-fit ​​channels with the adjacent sidewalls of the lower surface of the chassis. Each snap-fit ​​channel has a snap-fit ​​hole. Each fixing member is integrally connected with an elastic insertion portion corresponding to the position of each snap-fit ​​hole. Each elastic insertion portion on each fixing member has a deformation notch, and each elastic insertion portion on each fixing member has an elastic locking portion that engages with the snap-fit ​​hole. When assembling two adjacent charging dock units, the mating protrusions are spliced ​​in pairs and symmetrically arranged along the splicing line of the two charging dock units.

10. The modular charging station of claim 9, wherein: In each of the charging dock units, one of the mating protrusions on the same side extends an elastic member, and each elastic member is provided with a positioning protrusion for positioning the dual-headed power cord.

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