Charging connector, wearable device and charging assembly

Abstract

The utility model discloses a charging connector, wearable equipment and a charging assembly, and belongs to the technical field of electronic equipment. The charging connector comprises a connector shell, a first circuit board and a terminal assembly, the terminal assembly comprises at least two positive terminals and / or at least two negative terminals. The wearable device comprises a device host, and the device host comprises a host shell, a second circuit board, a first charging terminal and a second charging terminal. The charging assembly comprises a charging connector and an equipment host. When the charging connector charges the equipment host of the intelligent wearable equipment, two or more positive terminals in the charging connector are connected in parallel, and a first charging terminal of the same equipment host is conducted; and / or, two or more than two negative terminals in the charging connector are connected in parallel to conduct a second charging terminal of the same equipment host; charging current can be increased, charging time can be shortened, and miniaturization design is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment technology, and in particular to a charging connector, wearable device, and charging component. Background Technology

[0002] Wearable devices, such as smartwatches, smart bracelets, and TWS Bluetooth earphones, have achieved multiple functions such as display, audio playback, and health monitoring thanks to the diverse electronic components integrated inside, greatly enriching the user experience and being widely used in people's daily lives.

[0003] As user demands increase, there is a need to optimize charging solutions to shorten charging times for wearable devices and avoid excessively long charging times that could negatively impact user experience. However, current fast charging solutions often require replacing the internal charging structure of wearable devices with a larger one. Given the limited internal space of wearable devices, this increase in size often encroaches on the layout space of other electronic components. To address this issue, either other components need to be miniaturized, or the overall size of the wearable device needs to be increased. However, miniaturizing other components often brings new technical challenges, while increasing the device's size may affect portability and user experience. Therefore, improving the charging efficiency of wearable devices has become a pressing technical challenge that needs to be solved. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a charging connector, wearable device, and charging component that can improve the charging efficiency of wearable device while taking into account the miniaturization design of the charging connector and wearable device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A charging connector, comprising:

[0007] Connector housing;

[0008] The first circuit board is disposed inside the connector housing;

[0009] The terminal assembly includes a positive terminal group and a negative terminal group; the positive terminal group includes at least two positive terminals, and / or the negative terminal group includes at least two negative terminals; both the positive terminals and the negative terminals are electrically connected to the first circuit board.

[0010] The positive terminals in the positive terminal group are all used to make electrical contact with the first charging terminal of the smart wearable device, and the negative terminals in the negative terminal group are all used to make electrical contact with the second charging terminal of the smart wearable device.

[0011] Optionally, the positive terminal group includes at least two positive terminals, and the negative terminal group includes at least two negative terminals;

[0012] The number of positive terminals in the positive terminal group is the same as the number of negative terminals in the negative terminal group.

[0013] Optionally, the first circuit board is provided with a first pad and a second pad, the positive terminals in the positive terminal group are all electrically connected to the first pad, and the negative terminals in the negative terminal group are all electrically connected to the second pad.

[0014] Optionally, the connector housing has a first inner cavity, and the first circuit board and the terminal assembly are disposed in the first inner cavity;

[0015] The charging connector includes a fixing base disposed in the first inner cavity. The fixing base is provided with a first through hole and a second through hole. The positive terminals in the positive terminal group are all inserted through the first through hole, and the negative terminals in the negative terminal group are all inserted through the second through hole.

[0016] Optionally, the positive terminal group includes two positive terminals, the inner wall of the first through hole is provided with a first spacer protrusion, there is a gap between the two positive terminals, and the first spacer protrusion extends into the gap between the two positive terminals;

[0017] The negative terminal assembly includes two negative terminals, and the inner wall of the second through hole is provided with a second spacer protrusion. There is a gap between the two negative terminals, and the second spacer protrusion extends into the gap between the two negative terminals.

[0018] A wearable device includes a device host, the device host comprising:

[0019] Main unit casing;

[0020] The second circuit board is located inside the main unit casing;

[0021] The first charging terminal includes a first main body and a first charging head; the first charging head is connected to one end of the first main body and protrudes radially relative to the first main body; the side of the first charging head away from the first main body is a first charging contact surface.

[0022] The second charging terminal includes a second main body and a second charging head. The second charging head is connected to one end of the second main body and protrudes radially relative to the second main body. The side of the second charging head away from the second main body is the second charging contact surface.

[0023] Both the first charging terminal and the second charging terminal are electrically connected to the second circuit board.

[0024] The first charging contact surface is rectangular or oblong, and is used to contact at least two positive terminals of the charging connector; and / or, the second charging contact surface is rectangular or oblong, and is used to contact at least two negative terminals of the charging connector.

[0025] A charging component, comprising:

[0026] The charging connector as described in the above solution;

[0027] A wearable device includes a device host, the device host including a host housing, a second circuit board disposed within the host housing, a first charging terminal and a second charging terminal electrically connected to the second circuit board; the first charging terminal has a first charging contact surface at the end opposite to the second circuit board, and the second charging terminal has a second charging contact surface at the end opposite to the second circuit board;

[0028] The device host has a charging connection state that is docked with the charging connector;

[0029] When the device host is in the charging connection state, the positive terminals in the positive terminal group are all in electrical contact with the first charging contact surface, and the negative terminals in the negative terminal group are in electrical contact with the second charging contact surface.

[0030] Optionally, the first charging terminal includes a first body portion and a first charging head, the first charging head being connected to one end of the first body portion and protruding radially relative to the first body portion; the second charging terminal includes a second body portion and a second charging head, the second charging head being connected to one end of the second body portion and protruding radially relative to the second body portion.

[0031] The main body housing is provided with a first shell through hole and a second shell through hole; the first main body portion passes through the first shell through hole so that the first charging head extends to the outside of the main body housing; the second main body portion passes through the second shell through hole so that the second charging head extends to the outside of the main body housing;

[0032] When the device host is in the charging connection state, the positive terminals in the positive terminal group are all in contact with the surface of the first charging head, and the negative terminals in the negative terminal group are all in contact with the surface of the first charging head.

[0033] Optionally, the outer side of the main housing is provided with a first annular protrusion and a second annular protrusion;

[0034] The first annular protrusion surrounds the first shell through hole to define a first groove between the outer surface of the main housing and the inner surface of the first annular protrusion, and the first charging head is located in the first groove; the second annular protrusion surrounds the second shell through hole to define a second groove between the outer surface of the main housing and the inner surface of the second annular protrusion, and the second charging head is located in the second groove.

[0035] Optionally, the end of the first charging head away from the first main body is the first charging contact surface, and the end of the second charging head away from the second main body is the second charging contact surface. Both the first charging contact surface and the second charging contact surface are planar.

[0036] Optionally, the end of the positive terminal facing away from the first circuit board is an arc-shaped surface, and the end of the negative terminal facing away from the first circuit board is an arc-shaped surface;

[0037] Optionally, the positive terminal, the negative terminal, the first charging terminal, and the second charging terminal are all charging pins;

[0038] Optionally, the charging connector includes a first magnet connected to the connector housing, and the device host includes a second magnet connected to the host housing. When the device host is in the charging connection state, the first magnet and the second magnet attract each other based on magnetic attraction, so that the charging connector is attracted to the device host, thereby enabling the positive terminal to remain in contact with the first charging terminal and the negative terminal to remain in contact with the second charging terminal.

[0039] The beneficial effects of this utility model are as follows: When the charging connector charges the host device of the smart wearable device, two or more positive terminals in the charging connector are connected in parallel to conduct the first charging terminal of the same host device; and / or, two or more negative terminals in the charging connector are connected in parallel to conduct the second charging terminal of the same host device. In this way, the charging contact area between the charging connector and the host device can be increased, and the parallel terminals of the charging connector can increase the current delivered to the host device, thereby shortening the charging time of the wearable device and improving the user experience.

[0040] Charging efficiency can be improved even when only a charging terminal is provided on the device host. The solution for accelerating charging efficiency in this application can also meet the requirements for miniaturization of the device host and charging connector. Attached Figure Description

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0042] Figure 1 This is a cross-sectional view of the charging component described in an embodiment of the present invention (the device host is in a charging connection state in the figure);

[0043] Figure 2 This is a schematic diagram showing the connection between the charging connector and the device host in the charging assembly described in this embodiment of the utility model;

[0044] Figure 3 This is a schematic diagram showing the connection state between the terminals in the charging connector and the terminals in the device host when the charging connector in the charging assembly described in this embodiment of the utility model is connected to the device host to charge the device host.

[0045] Figure 4 This is a schematic diagram of the structure of the charging connector in the charging assembly described in this embodiment of the utility model;

[0046] Figure 5 for Figure 4 Enlarged view of part A in the image;

[0047] Figure 6 This is a cross-sectional view of the charging connector of the charging assembly described in an embodiment of the present utility model;

[0048] Figure 7 for Figure 6 Enlarged view of part B in the image;

[0049] Figure 8 This is a schematic diagram of the internal structure of the fixing seat of the charging connector of the charging component described in this embodiment of the utility model;

[0050] Figure 9 This is a schematic diagram of the device host of the charging component described in an embodiment of the present invention;

[0051] Figure 10 for Figure 9 Enlarged view of section C in the image;

[0052] Figure 11 This is a schematic diagram of the internal structure of the device host of the charging component described in an embodiment of this utility model;

[0053] Figure 12 This is a partial exploded schematic diagram of the main body housing of the device host of the charging component described in this embodiment of the utility model;

[0054] Figure 13 This is a schematic diagram of the structure of the first charging terminal of the device host of the charging component described in this embodiment of the present invention.

[0055] In the figure: 10, charging connector; 11, connector housing; 12, first circuit board; 13, positive terminal; 14, negative terminal; 15, mounting base; 151, first mounting through hole; 152, second mounting through hole; 153, first spacer protrusion; 154, second spacer protrusion; 16, first magnet; 20, device host; 21, host housing; 211, first housing through hole; 212, second housing through hole; 22, second circuit board; 23, first charging terminal; 2301, first charging contact surface; 231, first main body; 232, first charging head; 24, second charging terminal; 2401, second charging contact surface; 241, second main body; 242, second charging head; 251, first annular protrusion; 252, second annular protrusion; 26, second magnet. Detailed Implementation

[0056] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0057] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] Wearable devices, also known as smart wearable devices, include smartwatches, smart bracelets, TWS Bluetooth earphones, smart glasses, smart rings, smart necklaces, etc. These wearable devices can not only be worn by users, but also integrate various electronic components to provide a wide variety of interactive functions.

[0060] However, many smart wearable devices have long charging times, which can negatively impact the user experience. For example, smartwatches with built-in temperature sensors can monitor the user's body temperature when worn on the wrist, enabling health monitoring functions. For children, this function can promptly detect abnormal temperatures, alerting parents to their children's health. However, long charging times can affect the temperature monitoring function: prolonged charging may cause the internal temperature of the watch to rise, potentially affecting the accuracy of the temperature sensor and leading to higher readings, thus interfering with temperature monitoring. Furthermore, excessively long charging times may result in the wearable device not being fully charged when the user leaves home, impacting the user experience.

[0061] Therefore, there is a need to shorten the charging time of wearable devices in order to improve user experience. However, current fast charging solutions have relatively large charging structures. Current fast charging solutions often require replacing the internal charging structure of wearable devices with a larger structure, which may reduce the space for other electronic components or increase the overall size of the device.

[0062] In order to solve the technical problems existing in the related technologies, this application provides a charging connector, a wearable device, and a charging component, which can improve the charging efficiency of the wearable device while taking into account the miniaturization design of the charging connector and the wearable device.

[0063] Connecting two or more positive terminals in a charging connector in parallel to connect the first charging terminal of the same device host; and / or connecting two or more negative terminals in a charging connector in parallel to connect the second charging terminal of the same device host, can increase the charging current, thereby shortening the charging time of wearable devices and improving the user experience. Furthermore, this faster charging solution facilitates the miniaturization of both the device host and the charging connector.

[0064] The main unit of the wearable device can be, but is not limited to, a smartwatch, smart bracelet, TWS Bluetooth earphone, smart glasses, or smart ring. When a temperature sensor is integrated into the wearable device, the improved charging solution in this application helps to enhance the accuracy and reliability of the temperature sensor's measurement.

[0065] Please refer to Figures 1 to 13The following describes the charging connector 10, the wearable device, and the charging components in this application.

[0066] like Figure 1 , Figure 2 The charging assembly includes a charging connector 10 and a wearable device. The wearable device includes a main unit 20. The charging connector 10 is used to establish a connection between the charging power source and the main unit 20, enabling charging of the main unit 20. The main unit 20 has a charging connection state that mates with the charging connector 10 (e.g., ...). Figure 2 , Figure 1 (Illustrative image), and also has a normal usage state where it is detached from the charging connector 10 (e.g. Figure 9 (Illustration)

[0067] Reference Figures 4 to 7 The charging connector 10 includes a connector housing 11, a first circuit board 12, and a terminal assembly. The terminal assembly includes a positive terminal group and a negative terminal group. The connector housing 11 has a first inner cavity, within which the first circuit board 12, the positive terminal group, and the negative terminal group are all located. The positive terminal group includes a positive terminal 13, and the negative terminal group includes a negative terminal 14. Both the positive terminal 13 and the negative terminal 14 are electrically connected to the first circuit board 12. The charging connector 10 also includes a charging data cable. One end of the charging data cable is connected to the first circuit board 12, and the other end is used to connect to a power source. When the charging data cable is connected to a power source, the positive terminal 13 is connected to the positive terminal of the power source, and the negative terminal 14 is connected to the negative terminal. A first shell hole communicating with the first inner cavity is provided on one side of the connector housing 11. The sides of the positive terminal 13 and the negative terminal 14 facing away from the first circuit board 12 are exposed through the first shell hole to facilitate connection to the device host 20.

[0068] The positive terminal group includes at least two positive terminals 13, and / or the negative terminal group includes at least two negative terminals 14. The positive terminals 13 in the positive terminal group are all used to make electrical contact with the first charging terminal 23 of the smart wearable device to conduct electricity, and the negative terminals 14 in the negative terminal group are all used to make electrical contact with the second charging terminal 24 of the smart wearable device to conduct electricity.

[0069] Reference Figures 9 to 11 The wearable device includes a main housing 21, a second circuit board 22, a first charging terminal 23, a second charging terminal 24, and a battery. The main housing 21 has a second inner cavity, within which the second circuit board 22, the first charging terminal 23, the second charging terminal 24, and the battery are all housed. The first charging terminal 23 and the second charging terminal 24 are electrically connected to the second circuit board 22, and the second circuit board 22 is electrically connected to the battery.

[0070] The first charging terminal 23 is used to make electrical contact with the positive terminal 13 in the positive terminal group of the charging connector 10, and the second charging terminal 24 is used to make electrical contact with the negative terminal 14 in the negative terminal group of the charging connector 10.

[0071] like Figure 1 , Figure 3 As shown, when the device host 20 is in a charging connection state with the charging connector 10, the positive terminals 13 in the positive terminal group are all electrically connected to the first charging terminal 23 to achieve conduction, and the negative terminals 14 in the negative terminal group are all electrically connected to the second charging terminal 24 to achieve conduction, thereby forming a charging circuit, so that the power of the power supply can be transmitted to the battery in the device host 20 through the charging connector 10.

[0072] Based on the above structural design, the charging connector 10 and the device body can be connected to achieve charging in at least the following ways.

[0073] One of the charging conduction methods: such as Figure 6 The design includes two positive terminals 13 and two negative terminals 14. When the device host 20 is connected to the charging connector 10, the two positive terminals 13 are connected in parallel and simultaneously make electrical contact with the first charging terminal 23, and the two negative terminals 14 are connected in parallel and simultaneously make electrical contact with the second charging terminal 24.

[0074] Second charging conduction method: The positive terminal group includes two positive terminals 13, and the negative terminal group includes one negative terminal 14. When the device host 20 is connected to the charging connector 10, the two positive terminals 13 are connected in parallel and simultaneously make electrical contact with the first charging terminal 23, and the one negative terminal 14 makes electrical contact with the second charging terminal 24.

[0075] For one of the aforementioned charging conduction methods, the design of the two positive and two negative terminals of the charging connector 10 is equivalent to a set of identical circuit designs connected in parallel, achieving dual-path charging. Compared to the scheme where one positive terminal 13 of the charging connector 10 is connected to the first charging terminal 23 and one negative terminal 14 is connected to the second charging terminal 24, the design of the two positive and two negative terminals of the charging connector 10 can achieve twice the charging current, increasing the current delivered to the battery of the device host 20, thereby achieving a fast charging effect, shortening charging time, and improving user experience. It can be understood that when the two positive terminals 13 are connected in parallel, since they are both connected to the same power source, the voltage at the two positive terminals 13 is the same. When the resistance of the two positive terminals 13 is the same, the current at the two positive terminals 13 is the same. Since both positive terminals 13 are connected to the battery of the device host 20 through the first charging terminal 23, the current delivered to the battery is increased after the two positive terminals 13 are connected in parallel between the power source and the battery, thereby improving charging efficiency. The number of negative terminals 14 is the same as that of positive terminals 13, which ensures impedance balance and uniform current distribution throughout the circuit, guaranteeing circuit performance and efficiency.

[0076] For the second charging conduction method mentioned above, connecting the positive terminal 13 or the negative terminal 14 in parallel can also increase the current delivered to the battery, thereby improving charging efficiency. However, the charging effect of the second charging conduction method is not as good as that of the first charging conduction method.

[0077] When improving the charging scheme of the wearable device's main unit 20, the inventors considered that many wearable devices and the terminals in the charging connector 10 are Pogo pins. Generally, the connection between the terminals of the charging connector 10 and the terminals of the main unit 20 is through point contact, with a small contact area between the ends of the charging pins. The inventors found that directly increasing the size of the first charging terminal 23 and the second charging terminal 24 in the main unit 20 would not only require more internal space in the main unit 20, but also would not change the contact surface between the first charging terminal 23 and the positive terminal 13, or the contact surface between the second charging terminal 24 and the negative terminal 14, resulting in no significant improvement in current.

[0078] Compared to solutions that increase the main body volume of the first charging terminal 23 and the second charging terminal 24, this application improves charging efficiency by connecting at least two positive terminals 13 in parallel and / or at least two negative terminals 14 in parallel through the charging connector 10. This can increase the current delivered to the device host 20 without increasing the main body volume of the first charging terminal 23 and the second charging terminal 24.

[0079] This application improves charging efficiency while eliminating the need to change the size and shape of the terminal bodies of the first charging terminal 23 and the second charging terminal 24 located inside the device host 20. This facilitates the miniaturization of the device host 20, allowing for a smaller overall size. For example, when magnets are arranged around the periphery of the first charging terminal 23 and the second charging terminal 24 for magnetic engagement with the charging connector 10, the internal magnet structure of the device host 20 remains unaffected. Furthermore, since the portions of the first charging terminal 23 and the second charging terminal 24 located inside the device host 20 can remain unchanged, the original waterproofing and assembly processes are not affected, allowing for continued production line operation and low-cost charging solution optimization.

[0080] While improving charging efficiency, this application requires adding either a positive terminal 13 or a negative terminal 14 to the charging connector 10. However, when multiple positive terminals 13 are connected in parallel, they can be designed close together, sharing a common opening to extend from the connector housing 11. Similarly, when multiple negative terminals 14 are connected in parallel, they can be designed close together, sharing a common opening to extend from the connector housing 11. Thus, although the number of terminals in the charging connector 10 increases, it can still be configured with a relatively compact structure. The charging connector 10 does not need to be worn by the user, still meeting the miniaturization requirements of the charging connector 10.

[0081] Optionally, the device host 20 may have one first charging terminal 23 and one second charging terminal 24. It is understood that while providing a parallel first charging terminal 23 and a parallel second charging terminal 24 on the device host 20 side could increase the current input to the battery of the device host 20, it would also increase the number of terminals on the device host 20 side, occupying internal space and affecting the original internal layout of the device host 20. In this application, by using the charging connector 10, the positive terminal 13 is connected in parallel and the negative terminal 14 is connected in parallel, thus balancing improved charging efficiency with the miniaturization and portability of the device host 20.

[0082] In one embodiment, such as Figure 3 As shown, the positive terminal 13, negative terminal 14, first charging terminal 23, and second charging terminal 24 are all charging pins. The charging pins are used for current and signal transmission, serving the functions of charging and conducting electricity. The pin-type terminals can be inserted into the connector housing 11 and the host housing 21, which facilitates connection with the circuit board and also facilitates electrical connection between the charging connector 10 and the host device 20 through terminal mating.

[0083] The charging pins of the positive terminal 13, negative terminal 14, first charging terminal 23, and second charging terminal 24 can be Pogo pins. Pogo pins, also known as spring pins, are spring-loaded probes formed by pre-pressing three basic components—a needle shaft, a spring, and a needle tube—using precision instruments. Alternatively, the positive terminal 13, negative terminal 14, first charging terminal 23, and second charging terminal 24 can be ordinary charging pins without springs.

[0084] like Figure 1 As shown, when the device host 20 is in the charging connection state, the end of the positive terminal 13 away from the first circuit board 12 contacts the end of the first charging terminal 23 away from the second circuit board 22, thus achieving conductivity. The end of the negative terminal 14 away from the first circuit board 12 contacts the end of the second charging terminal 24 away from the second circuit board 22, thus achieving conductivity.

[0085] In one embodiment, the number of positive terminals 13 in the positive terminal group is the same as the number of negative terminals 14 in the negative terminal group. For example... Figure 3 It can be illustrated that the positive terminal subgroup includes two parallel positive terminals 13, and the negative terminal subgroup includes two parallel negative terminals 14; or the positive terminal subgroup may include three parallel positive terminals 13, and the negative terminal subgroup may include two parallel negative terminals 14.

[0086] During charging, the current and impedance bottlenecks are at the contact points between the positive terminal 13 and the first charging terminal 23, and between the negative terminal 14 and the second charging terminal 24. By ensuring that the contact points of the positive and negative terminals are consistent, the bottlenecks in the entire circuit can be reduced. When the number of positive terminals 13 and negative terminals 14 is equal, excessive current obstruction at one end can be avoided, ensuring a stable current flow in the charging circuit and preventing charge accumulation or depletion at one end. This results in a more balanced impedance throughout the charging circuit, allowing for a larger current to flow and maximizing power.

[0087] It should be noted that, taking the positive terminal group with two parallel positive terminals 13 and the negative terminal group with one negative terminal 14 as an example, although the impedance of this scheme is not as balanced as the scheme with two parallel positive terminals 13 and two parallel negative terminals 14, it still has a certain effect on improving charging efficiency and can still solve the technical problems in related technologies.

[0088] In one embodiment, the first circuit board 12 is provided with a first pad and a second pad (not shown in the figure). The positive terminals 13 in the positive terminal group are all electrically connected to the first pad, and the negative terminals 14 in the negative terminal group are all electrically connected to the second pad. By soldering multiple positive terminals 13 to the first pad in the same area of ​​the first circuit board 12, parallel connection of multiple positive terminals 13 located between the power source and the battery can be achieved, saving space. Similarly, soldering multiple negative terminals 14 to the same second pad also helps save space. This arrangement facilitates the miniaturization design of the charging connector 10.

[0089] Of course, multiple positive terminals 13 can also be soldered to different pads on the first circuit board 12, and the different pads can be connected by circuit wiring to achieve parallel connection of the positive terminals 13. Multiple negative terminals 14 can also be soldered to different pads on the first circuit board 12, and the different pads can be connected by circuit wiring to achieve parallel connection of the negative terminals 14.

[0090] In one embodiment, the charging connector 10 includes a fixing base 15 disposed within a first inner cavity. The fixing base 15 is connected to the connector housing 11 and provides support and restraint for the first circuit board 12, the positive terminal 13, and the negative terminal 14, preventing displacement during impacts and ensuring electrical performance stability. The fixing base 15 is fixedly connected to the first electrical connector by means of adhesive bonding, screw fastening, or other methods to support the first circuit board 12.

[0091] Reference Figure 8 The fixing base 15 is provided with a first through hole 151 and a second through hole 152, as shown in the figure. Figure 6 , Figure 7 In this design, the positive terminals 13 in the positive terminal group are all inserted through the first through hole 151, and the negative terminals 14 in the negative terminal group are all inserted through the second through hole 152. Firstly, the through holes provide stable support and limit the movement of the positive and negative terminals 13 and 14. Secondly, inserting the positive and negative terminals 13 and 14 through different through holes makes the internal structure of the charging connector 10 clearer, facilitating management and operation during production and assembly. This design also facilitates the positioning and fixing of the positive and negative terminals 14 during assembly, ensuring accurate connection to the first circuit board 12 and good electrical contact with the charging terminals of the device host 20 during charging. Furthermore, by placing the positive and negative terminals 13 and 14 in different through holes, short circuits between them can be effectively avoided. This design also helps reduce electromagnetic interference between the positive and negative terminals 14, improving the electrical performance stability of the charging connector 10.

[0092] Optionally, refer to Figures 6 to 8The positive terminal group includes two positive terminals 13, both of which are installed within a first through hole 151. A first spacing protrusion 153 is provided on the inner wall of the first through hole 151, and a gap exists between the two positive terminals 13. The first spacing protrusion 153 extends into the gap between the two positive terminals 13. The two parallel positive terminals 13 maintain a certain clearance fit through the first spacing protrusion 153. This improves circuit reliability and reduces the risk of the entire circuit failing due to a single terminal failure. If one positive terminal 13 malfunctions (such as an open circuit or short circuit), the other terminal can still continue to operate, thus maintaining circuit continuity. It also provides benefits such as current shunting, reduced heat effects, and easier maintenance and replacement.

[0093] Similarly, the negative terminal assembly includes two negative terminals 14. The inner wall of the second through hole 152 is provided with a second spacer protrusion 154, and there is a gap between the two negative terminals 14. The second spacer protrusion 154 extends into the gap between the two negative terminals 14. The advantage of maintaining the gap between the negative terminals 14 through the second spacer protrusion 154 is similar to that of the positive terminal 13 spacing scheme, and will not be elaborated here.

[0094] In other embodiments, the mounting base 15 is provided with four independent mounting through holes, and the two positive terminals 13 and the two negative terminals 14 are respectively installed in the four independent mounting through holes.

[0095] In one embodiment, reference is made to Figure 1 , Figure 3 , Figure 10 , Figure 11 The first charging terminal 23 has a first charging contact surface 2301 at the end opposite to the second circuit board 22, and the second charging terminal 24 has a second charging contact surface 2401 at the end opposite to the second circuit board 22. When the device host 20 is in the charging connection state, all positive terminals 13 in the positive terminal group are in electrical contact with the first charging contact surface 2301, and all negative terminals 14 in the negative terminal group are in electrical contact with the second charging contact surface 2401. The positive terminal 13 is electrically connected to the first charging terminal 23 through conductive contact with the first charging contact surface 2301, and the negative terminal 14 is electrically connected to the second charging terminal 24 through conductive contact with the second charging contact surface 2401.

[0096] Alternatively, compared to the circular design of the first charging terminal 23, such as Figure 3 , Figure 11 As shown, the first charging contact surface 2301 is rectangular or oblong, so that the first charging contact surface 2301 can be used to make conductive contact with at least two positive terminals 13 of the charging connector 10, so that the two parallel positive terminals 13 are electrically connected to the same first charging terminal 23 of the device host 20.

[0097] Similarly, compared to the circular design of the second charging terminal 24, such as Figure 3 , Figure 11 As shown, the second charging contact surface 2401 is rectangular or oblong, so that the second charging contact surface 2401 can be used to make conductive contact with at least two positive terminals 13 of the charging connector 10, so that the two parallel positive terminals 13 are electrically connected to the same second charging terminal 24 of the device host 20.

[0098] It should be noted that an oblong shape refers to a structure with a rectangle in the middle and semicircles at both ends. An oblong shape can also be called a racetrack shape.

[0099] Understandably, for the device host 20, by modifying the shape of the first charging contact surface 2301 and the second charging contact surface 2401, it is possible to support two or more positive terminals 13 connected in parallel in the charging connector 10 to make contact and conduct with the same first charging terminal 23, and two or more negative terminals 14 to make contact and conduct with the same second charging terminal 24. This does not require changing the main structure of the first charging terminal 23 and the second charging terminal 24, does not affect the internal space of the device host 20, requires minimal modification to the device host 20, has low cost, and is beneficial for miniaturization design.

[0100] Optionally, the first charging contact surface 2301 and the second charging contact surface 2401 are planar, which provides a larger contact area, helps reduce contact resistance, improves current transmission efficiency, reduces energy loss, and facilitates cleaning and maintenance. Planar charging contact surfaces can more easily adapt to positive and negative terminals 14 of the charging connector 10 of different shapes and sizes, improving the compatibility of the host device 20. The design and manufacture of planar charging contact surfaces are relatively simple and cost-effective, which helps reduce the overall cost of the host device 20.

[0101] Optionally, the positive terminal 13 has an arc-shaped surface on the side facing away from the first circuit board 12, such as a sphere with a slight curvature. The negative terminal 14 also has an arc-shaped surface on the side facing away from the first circuit board 12, such as a sphere with a slight curvature.

[0102] In one embodiment, reference is made to Figure 3The first charging terminal 23 includes a first body portion 231 and a first charging head 232. The first charging head 232 is connected to one end of the first body portion 231 and protrudes radially relative to the first body portion 231. The second charging terminal 24 includes a second body portion 241 and a second charging head 242. The second charging head 242 is connected to one end of the second body portion 241 and protrudes radially relative to the second body portion 241. The first charging head 232 and the second charging head 242 protruding radially relative to their respective bodies increases the contact area between the charging terminals and the positive terminal 13 and the negative terminal 14 in the charging connector 10.

[0103] The side of the first charging head 232 that is away from the first main body 231 is the first charging contact surface 2301, and the side of the second charging head 242 that is away from the second main body 241 is the second charging contact surface 2401.

[0104] Optionally, refer to Figure 13 The main body housing 21 is provided with a first housing through hole 211 and a second housing through hole 212. The first main body 231 passes through the first housing through hole 211, and the first charging head 232 extends to the outside of the main body housing 21 so that the first charging head 232 is exposed in the main body housing 21, which facilitates the first charging head 232 to connect with the positive terminal 13 of the charging connector 10. The second main body 241 passes through the second housing through hole 212, and the second charging head 242 extends to the outside of the main body housing 21 so that the second charging head 242 is exposed in the main body housing 21, which facilitates the second charging head 242 to connect with the negative terminal 14 of the charging connector 10.

[0105] When the device host 20 is in the charging connection state, the positive terminals 13 in the positive terminal group all abut against the surface of the first charging head 232 (i.e., the first charging contact surface 2301), and the negative terminals 14 in the negative terminal group all abut against the surface of the first charging head 232 (i.e., the second charging contact surface 2401). It is understood that the charging head extends through the first housing through-hole 211 or the second housing through-hole 212 to the outside of the host housing 21, and the charging head can be snapped into the host housing 21. Thus, the host housing 21 does not require an additional mounting bracket for fixing the charging terminals. Of course, if further fixing is needed, an additional mounting bracket for fixing the charging terminals can be provided inside the host housing 21. Simultaneously, the charging head is directly exposed to the outside of the host housing 21. The design of the charging head can be designed and adjusted according to the number and arrangement of the positive terminals 13 and negative terminals 14 of the charging connector 10, and the charging head does not occupy internal space of the host housing 21, nor does it affect the internal layout of the host housing 21.

[0106] In other embodiments, the first charging head 232 and the second charging head 242 may also be embedded inside the first shell through hole 211 and the second shell through hole 212 of the main housing 21, respectively.

[0107] Optionally, when the first charging head 232 and the second charging head 242 are located outside the main housing 21, a first annular protrusion 251 and a second annular protrusion 252 are also provided on the outer side of the main housing 21. (Refer to...) Figure 12 The first annular protrusion 251 surrounds the first housing through hole 211 to define a first groove between the outer surface of the main housing 21 and the inner surface of the first annular protrusion 251, as shown in the figure. Figure 11 The first charging head 232 is located within the first groove. (See reference...) Figure 12 The second annular protrusion 252 surrounds the second shell through hole 212 to define a second groove between the outer surface of the main housing 21 and the inner surface of the second annular protrusion 252, as shown in the figure. Figure 11 The second charging head 242 is located within the second groove. The first annular protrusion 251 and the second annular protrusion 252 surround the first housing through-hole 211 and the second housing through-hole 212, respectively, forming physical protection for the first charging head 232 and the second charging head 242. This prevents damage to the charging heads from external impacts or friction, improving the durability and reliability of the charging terminals. The annular protrusions increase the sealing path, preventing moisture, dust, and other impurities from entering the main housing 21 through the first housing through-hole 211 and the second housing through-hole 212, thus improving the sealing effect. Simultaneously, the annular protrusions provide support and fixation for the charging heads.

[0108] Optionally, a sealing material can be provided on the side of the first charging head 232 and the second charging head 242 near the main housing 21, and the first annular protrusion 251 and the second annular protrusion 252 can serve to cover and hide the sealing material. Of course, sealing material can also be provided between the outer peripheral surface of the first charging head 232 and the inner wall of the first annular protrusion 251, and between the outer peripheral surface of the second charging head 242 and the inner wall of the second annular protrusion 252, thereby improving the sealing performance.

[0109] In other embodiments, the annular protrusion may not be provided, or intermittent, spaced block protrusions may be provided to limit the two charging heads.

[0110] Optionally, the first groove and the second groove can also be rectangular or oblong.

[0111] Optionally, refer to Figure 13The first charging terminal 23 and the second charging terminal 24 have the same structure. Taking the structure of the first charging terminal 23 as an example, the first charging terminal 23 includes a first charging head 232 and a first main body 231. The first contact surface of the first charging head 232 is oblong. During manufacturing, when processing the charging terminal, this shape can be machined on a metal conductive post by turning, which is a simple and easy process to implement.

[0112] Optionally, the first charging head 232 and the second charging head 242 are spaced apart along the x-direction. The positive terminal group includes two positive terminals 13 arranged along the x-direction; the negative terminal group includes two negative terminals 14 arranged along the x-direction. This layout, while ensuring charging connection between the charging connector 10 and the device host 20, also facilitates a more compact design.

[0113] In one embodiment, reference is made to Figure 1 , Figure 4 , Figure 6 , Figure 11 The charging connector 10 includes a first magnet 16 connected to the connector housing 11, and the device host 20 includes a second magnet 26 connected to the host housing 21. When the device host 20 is in a charging connection state, the first magnet 16 and the second magnet 26 attract each other based on magnetic attraction, causing the charging connector 10 to be attracted to the device host 20. This allows the positive terminal 13 to remain in contact with the first charging terminal 23 and the negative terminal 14 to remain in contact with the second charging terminal 24. By incorporating magnets into the charging connector 10 and the device host 20, the convenience of charging connection is improved. Simply bringing the charging connector 10 close to the device host 20 will automatically align and tightly connect the two. This significantly reduces the difficulty of charging operations and improves the user experience.

[0114] Optionally, refer to Figure 6 , Figure 7 The connector housing 11 has a first inner cavity inside. The charging connector 10 includes a fixing base 15 and a first magnet 16. The fixing base 15, the first circuit board 12, the positive terminal 13, the negative terminal 14 and the first magnet 16 are all disposed in the first inner cavity. The fixing base 15 is provided with a mounting through hole, through which the positive terminal 13 and the negative terminal 14 pass. The first magnet 16 is a ring magnet and is sleeved on the outside of the fixing base 15.

[0115] Optionally, the second magnet 26 is a ring magnet, and the second magnet 26 surrounds the first charging terminal 23 and the second charging terminal 24.

[0116] This application can improve charging efficiency through a simple structure, and the benefits of structural improvement are high.

[0117] In the description herein, it should be understood that the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationships shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0118] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0119] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0120] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A charging connector, characterized in that, include: Connector housing (11); The first circuit board (12) is disposed inside the connector housing (11); The terminal assembly includes a positive terminal group and a negative terminal group; the positive terminal group includes a positive terminal (13), the negative terminal group includes a negative terminal (14), and both the positive terminal (13) and the negative terminal (14) are electrically connected to the first circuit board (12); there are at least two positive terminals (13) and / or at least two negative terminals (14); In this configuration, the positive terminals (13) in the positive terminal group are all used to make electrical contact with the first charging terminal (23) of the smart wearable device, and the negative terminals (14) in the negative terminal group are all used to make electrical contact with the second charging terminal (24) of the smart wearable device.

2. The charging connector according to claim 1, characterized in that, The positive terminal group includes at least two positive terminals (13), and the negative terminal group includes at least two negative terminals (14); The number of positive terminals (13) in the positive terminal group is the same as the number of negative terminals (14) in the negative terminal group.

3. The charging connector according to claim 1, characterized in that, The first circuit board (12) is provided with a first pad and a second pad. The positive terminals (13) in the positive terminal group are all electrically connected to the first pad, and the negative terminals (14) in the negative terminal group are all electrically connected to the second pad.

4. The charging connector according to claim 1, characterized in that, The connector housing (11) has a first inner cavity inside, and the first circuit board (12) and the terminal assembly are disposed in the first inner cavity; The charging connector (10) includes a fixing seat (15), which is disposed in the first inner cavity. The fixing seat (15) is provided with a first through hole (151) and a second through hole (152). The positive terminals (13) in the positive terminal group are all disposed through the first through hole (151), and the negative terminals (14) in the negative terminal group are all disposed through the second through hole (152).

5. The charging connector according to claim 4, characterized in that, The positive terminal group includes two positive terminals (13), the inner wall of the first through hole (151) is provided with a first spacer protrusion (153), there is a gap between the two positive terminals (13), and the first spacer protrusion (153) extends into the gap between the two positive terminals (13); The negative terminal assembly includes two negative terminals (14), and the inner wall of the second through hole (152) is provided with a second spacer protrusion (154). There is a gap between the two negative terminals (14), and the second spacer protrusion (154) extends into the gap between the two negative terminals (14).

6. A wearable device, characterized in that, Includes a device host (20), the device host (20) comprising: Main unit casing (21); The second circuit board (22) is disposed inside the main unit housing (21); The first charging terminal (23) includes a first main body (231) and a first charging head (232); the first charging head (232) is connected to one end of the first main body (231), and the first charging head (232) protrudes radially relative to the first main body (231); the side of the first charging head (232) away from the first main body (231) is a first charging contact surface (2301); The second charging terminal (24) includes a second main body (241) and a second charging head (242). The second charging head (242) is connected to one end of the second main body (241) and protrudes radially relative to the second main body (241). The side of the second charging head (242) away from the second main body (241) is a second charging contact surface (2401). The first charging terminal (23) and the second charging terminal (24) are both electrically connected to the second circuit board (22); The first charging contact surface (2301) is rectangular or oblong and is used to contact at least two positive terminals (13) of the charging connector (10); and / or, the second charging contact surface (2401) is rectangular or oblong and is used to contact at least two negative terminals (14) of the charging connector (10).

7. A charging component, characterized in that, include: The charging connector (10) as described in any one of claims 1 to 5; The wearable device includes a device host (20), the device host (20) includes a host housing (21), a second circuit board (22) disposed in the host housing (21), a first charging terminal (23) electrically connected to the second circuit board (22), and a second charging terminal (24); the first charging terminal (23) has a first charging contact surface (2301) at one end away from the second circuit board (22), and the second charging terminal (24) has a second charging contact surface (2401) at one end away from the second circuit board (22); The device host (20) is in a charging connection state that is connected to the charging connector (10); When the device host (20) is in the charging connection state, the positive terminals (13) in the positive terminal group are all in electrical contact with the first charging contact surface (2301), and the negative terminals (14) in the negative terminal group are in electrical contact with the second charging contact surface (2401).

8. The charging component according to claim 7, characterized in that, The first charging terminal (23) includes a first main body (231) and a first charging head (232), the first charging head (232) is connected to one end of the first main body (231), and the first charging head (232) protrudes radially relative to the first main body (231); the second charging terminal (24) includes a second main body (241) and a second charging head (242), the second charging head (242) is connected to one end of the second main body (241), and the second charging head (242) protrudes radially relative to the second main body (241); The main housing (21) is provided with a first housing through hole (211) and a second housing through hole (212); the first main body (231) passes through the first housing through hole (211) so that the first charging head (232) extends to the outside of the main housing (21); the second main body (241) passes through the second housing through hole (212) so that the second charging head (242) extends to the outside of the main housing (21); When the device host (20) is in the charging connection state, the positive terminals (13) in the positive terminal group are all abutted against the first charging head (232), and the negative terminals (14) in the negative terminal group are all abutted against the first charging head (232).

9. The charging component according to claim 8, characterized in that, The outer side of the main housing (21) is provided with a first annular protrusion (251) and a second annular protrusion (252); The first annular protrusion (251) surrounds the first shell through hole (211) to define a first groove between the outer surface of the main housing (21) and the inner surface of the first annular protrusion (251), and the first charging head (232) is located in the first groove; the second annular protrusion (252) surrounds the second shell through hole (212) to define a second groove between the outer surface of the main housing (21) and the inner surface of the second annular protrusion (252), and the second charging head (242) is located in the second groove.

10. The charging assembly according to claim 8, characterized in that, Both the first charging contact surface (2301) and the second charging contact surface (2401) are planar. And / or, the positive terminal (13) has an arc-shaped surface at the end opposite to the first circuit board (12), and the negative terminal (14) has an arc-shaped surface at the end opposite to the first circuit board (12); And / or, the positive terminal (13), the negative terminal (14), the first charging terminal (23), and the second charging terminal (24) are all charging pins; And / or, the charging connector (10) includes a first magnet (16) connected to the connector housing (11), and the device host (20) includes a second magnet (26) connected to the host housing (21). When the device host (20) is in the charging connection state, the first magnet (16) and the second magnet (26) attract each other based on magnetic attraction, so that the charging connector (10) is attracted to the device host (20), thereby enabling the positive terminal (13) to remain in contact with the first charging terminal (23) and the negative terminal (14) to remain in contact with the second charging terminal (24).

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