Magnetic attraction charging interface and charging robot system

Abstract

The utility model relates to the technology of power supply devices, and discloses a magnetic attraction charging interface and a charging robot system, the magnetic attraction charging interface comprises a contact device and a bouncing needle device, the contact device comprises a contact cover, a first magnet, a contact seat and a contact circuit board, and the bouncing needle device comprises a bouncing needle cover, a second magnet, a bouncing needle seat and a bouncing needle circuit board; the contact seat is provided with a plurality of contacts, and the vibrating needle seat is provided with vibrating needles with the number corresponding to that of the contacts; the first magnet and the contact seat are respectively arranged in the contact cover, the contact circuit board is arranged on the back surface of the contact cover and seals the contact cover, and an output interface on the contact circuit board is used for accessing a power connection end of machine equipment provided with the contact device; the second magnet and the elastic needle seat are respectively installed in the elastic needle cover, the elastic needle circuit board is arranged on the back face of the elastic needle cover and seals the elastic needle cover, and an input interface on the elastic needle circuit board is used for being connected with a power transmission end of a charging device provided with an elastic needle device. The utility model aims to provide a magnetic attraction charging interface which can conveniently realize butt joint of charging interfaces of machinery equipment.

Description

Technical Field

[0001] This utility model relates to the field of power supply device technology, and in particular to a magnetic charging interface and a charging robot system. Background Technology

[0002] In modern industrial and daily life scenarios, machinery and equipment are widely used, such as robots and robotic arms. These machines and equipment have greatly improved production efficiency and people's quality of life. Most of these machines and equipment rely on electricity for operation, making the charging process a key factor in ensuring their normal operation.

[0003] Currently, traditional machine charging interfaces mainly use a plug-in connection method. When the equipment's power is low, operators or users need to manually insert the charging plug into the equipment's charging interface, which is extremely inconvenient. In particular, many machines have charging interfaces located in rather hidden places for protection purposes (such as dustproof and waterproof), which further increases the difficulty of plugging and unplugging. Moreover, the plug-in connection method is also prone to causing interface wear.

[0004] The above content is only used to help understand the technical solution of this utility model and does not represent an admission that the above content is prior art. Utility Model Content

[0005] This invention proposes a magnetic charging interface and a charging robot system, aiming to provide a magnetic charging interface that can conveniently connect the charging interfaces of machines and reduce the risk of interface wear and tear during plugging and unplugging.

[0006] To achieve the above objectives, this utility model proposes a magnetic charging interface, comprising: a contact device and a spring pin device. The contact device includes a contact cover, a first magnet, a contact base, and a contact circuit board. The spring pin device includes a spring pin cover, a second magnet, a spring pin base, and a spring pin circuit board. The contact base is provided with multiple contacts, and the spring pin base is provided with a number of spring pins corresponding to the number of contacts.

[0007] The first magnet and the contact base are respectively installed in the corresponding first slots inside the contact cover, with the bottom of the first slot facing the front of the contact cover. The bottom of the first slot corresponding to the contact base has holes that expose the top of each contact. The contact circuit board is set on the back of the contact cover and seals the contact cover. The contact circuit board is also provided with electrical contacts that contact the ends of each contact and electrically connect to the output interface. The output interface is used to connect to the power terminal of the machine equipment with the contact device installed.

[0008] The second magnet and the spring pin holder are respectively installed in the corresponding second slot inside the spring pin cover, with the bottom of the second slot facing the front of the spring pin cover. The bottom of the second slot corresponding to the spring pin holder is provided with a hole for the tip of each spring pin to protrude. The spring pin circuit board is set on the back of the spring pin cover and seals the spring pin cover. The spring pin circuit board is also provided with an electrical connection point for contacting the end of each spring pin and for connecting the input interface. The input interface is used to connect to the power supply terminal of the charging device on which the spring pin device is installed.

[0009] This utility model further proposes a charging robot system, including a robot and a charging device adapted to the robot; the contact device installed on the robot and the spring pin device installed on the charging device are combined to form a magnetic charging interface as described above.

[0010] The beneficial effects of this utility model are as follows: The magnetic charging interface utilizes the magnetic attraction of a first and second magnet. When the equipment approaches the charging device, the spring-loaded device and the contact device automatically align and attract each other. This greatly simplifies the charging interface alignment process, whether the operator manually charges the equipment or the equipment automatically aligns with the charging device, improving the convenience of charging. Especially for automatic charging, it simplifies the complexity of the interface positioning and alignment algorithm. Furthermore, the magnetic charging interface achieves connection through magnetic attraction, avoiding mechanical friction during insertion and removal, reducing the risk of wear and tear on the interface, and extending the service life of both the charging interface and the equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the magnetic charging interface of this utility model;

[0012] Figure 2 This is an exploded view of the structure of an embodiment of the contact device of this utility model;

[0013] Figure 3 This is an exploded view of the structure of an embodiment of the spring needle device of this utility model;

[0014] Figure 4 This is a three-dimensional structural view of an embodiment of the contact cover of this utility model;

[0015] Figure 5 This is a three-dimensional structural view of an embodiment of the spring pin cover of this utility model;

[0016] Figure 6 This is a front view of the structure of an embodiment of the contact device of this utility model;

[0017] Figure 7 This is a structural side view of an embodiment of the contact device of this utility model;

[0018] Figure 8This is a front view of an embodiment of the spring needle device of this utility model;

[0019] Figure 9 This is a side view of the structure of an embodiment of the spring needle device of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 10. Contact device; 11. Contact cover; 12. Contact circuit board; 13. Output interface; 14. First magnet; 15. Contact base; 20. Spring pin device; 21. Spring pin cover; 22. Spring pin circuit board; 23. Input interface; 24. Second magnet; 25. Spring pin base;

[0022] 111, First locking component; 112, First slot; 211, Second locking component; 212, Positioning component; 213, Spring pin. The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0026] Furthermore, descriptions involving terms such as "first" and "second" in this utility model are for descriptive purposes only (e.g., to distinguish identical or similar elements) and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of those features. Additionally, technical solutions from different embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this utility model.

[0027] This utility model proposes a magnetic charging interface, referring to... Figures 1 to 5 The magnetic charging interface includes a contact device 10 and a spring-loaded device 20. The contact device 10 includes a contact cover 11, a first magnet 14, a contact base 15, and a contact circuit board 12. The spring-loaded device 20 includes a spring-loaded cover 21, a second magnet 24, a spring-loaded base 25, and a spring-loaded circuit board 22. The contact base 15 has multiple contacts, and the spring-loaded base 25 has a number of spring-loaded pins 213 corresponding to the number of contacts.

[0028] The first magnet 14 and the contact seat 15 are respectively installed in the corresponding first slots 112 inside the contact cover 11, and the bottom of the first slots 112 faces the front of the contact cover 11. The bottom of the first slots 112 corresponding to the contact seat 15 is provided with holes that expose the top of each contact. The contact circuit board 12 is set on the back of the contact cover 11 and seals the contact cover 11. The contact circuit board 12 is also provided with electrical contacts that contact the ends of each contact and are electrically connected to the output interface 13. The output interface 13 is used to connect to the power terminal of the machine equipment on which the contact device 10 is installed.

[0029] The second magnet 24 and the spring pin holder 25 are respectively installed in the corresponding second slots inside the spring pin cover 21, with the bottom of the second slot facing the front of the spring pin cover 21. The bottom of the second slot corresponding to the spring pin holder 25 is provided with a hole for the top of each spring pin 213 to protrude. The spring pin circuit board 22 is set on the back of the spring pin cover 21 and seals the spring pin cover 21. The spring pin circuit board 22 is also provided with an electrical connection position that contacts the end of each spring pin 213 and is electrically connected to the input interface 23. The input interface 23 is used to connect to the power supply terminal of the charging device on which the spring pin device 20 is installed.

[0030] In this embodiment, the magnetic charging interface consists of two main parts: a contact device 10 and a spring-loaded device 20. During use, the contact device 10 is installed on the machine or equipment requiring charging, while the spring-loaded device 20 is installed on the charging device responsible for power output. When the magnetic charging interface is in use, the magnetic attraction of the magnet causes the contacts and spring-loaded devices 213 to precisely align, enabling the charging device to transmit power to the machine or equipment. This effectively improves upon the inconvenience and wear-prone nature of traditional plug-in charging interfaces.

[0031] The components of the contact device 10 include a contact cover 11, a first magnet 14, a contact base 15, and a contact circuit board 12.

[0032] The contact cover 11 is the outer shell of the contact device 10, which protects the internal components and has a built-in first slot 112 for installing the protected components. The first magnet 14 provides magnetic attraction and can attract the second magnet 24 in the spring needle device 20, so that the contact device 10 and the spring needle device 20 can be accurately connected. The contact base 15 is the base for installing multiple contacts, which ensures that the position of the contacts is fixed and the arrangement is orderly. The contact circuit board 12 is a key component for circuit connection, realizing the electrical connection between the contacts and the power connection terminal of the machine equipment.

[0033] The contact cover 11 has corresponding first slots 112 inside, in which the first magnet 14 and the contact base 15 are respectively installed. The bottom of the first slot 112 faces the front of the contact cover 11, which is beneficial for the contacts and magnets to perform their functions.

[0034] Holes are provided at the bottom of the first slot 112 corresponding to the contact base 15. The purpose of these holes is to expose the tips of each contact. When the contact device 10 is connected to the spring needle device 20, the exposed contact tips can accurately contact the spring needle 213, thereby realizing power transmission.

[0035] The contact circuit board 12 is located on the back of the contact cover 11. Its function is to seal the contact cover 11 and protect the internal first magnet 14 and contact seat 15. Electrical contacts are provided on the contact circuit board 12, which contact the ends of each contact and are also connected to the output interface 13 via circuitry. The output interface 13 is used to connect to the power supply terminal of the machine equipment on which the contact device 10 is installed, thereby transmitting the power from the spring device 20 to the machine equipment.

[0036] The spring needle device 20 includes a spring needle cover 21, a second magnet 24, a spring needle seat 25, and a spring needle circuit board 22.

[0037] The spring pin cover 21 serves as the outer shell of the spring pin device 20, protecting the internal second magnet 24 and spring pin seat 25, and also has a built-in second slot for mounting these components. The second magnet 24 is used to cooperate with the first magnet 14 in the contact device 10 to generate a magnetic attraction, ensuring that the spring pin device 20 and the contact device 10 are accurately attracted together. The spring pin seat 25 is used to mount multiple spring pins 213, ensuring that the position and arrangement of the spring pins 213 correspond to the contacts on the contact seat 15. The spring pin circuit board 22 realizes the electrical connection between the spring pins 213 and the power transmission end of the charging device, which is an important link in power transmission.

[0038] The inner cavity of the spring pin cover 21 has corresponding second slots, in which the second magnet 24 and the spring pin seat 25 are respectively installed. The bottom of the second slot also faces the front of the spring pin cover 21, facilitating the docking of the spring pin 213 with the contact. Holes are formed at the bottom of the corresponding second slots in the spring pin seat 25, through which the tips of each spring pin 213 protrude. When the spring pin device 20 and the contact device 10 are attracted together, the protruding tips of the spring pins 213 can make tight contact with the contacts on the contact seat 15, completing the power transmission.

[0039] The spring pin circuit board 22 is located on the back of the spring pin cover 21, serving to seal the spring pin cover 21. Electrical contacts are provided on the spring pin circuit board 22, which contact the ends of each spring pin 213, and are also connected to the input interface 23 via circuitry. The input interface 23 is used to connect to the power supply terminal of the charging device on which the spring pin device 20 is installed, transmitting power from the charging device to the spring pins 213.

[0040] The working principle and usage of the magnetic charging interface are as follows:

[0041] When a machine equipped with contact device 10 approaches a charging device equipped with spring-loaded device 20, the first magnet 14 in contact device 10 and the second magnet 24 in spring-loaded device 20 will attract each other due to their magnetism. The magnetic force generated by these two magnets provides a guiding and positioning function, enabling the spring-loaded device 20 and contact device 10 to automatically and accurately align. Regardless of their initial relative position deviation, under the action of the magnetic force, the spring-loaded device 20 will gradually move closer to the contact device 10 and eventually accurately attract together.

[0042] After the machine and charging device are connected via a magnetic charging interface, the power output from the charging device first reaches the input interface 23 of the spring-loaded device 20 on the charging device. The input interface 23 is connected to the electrical contacts on the spring-loaded circuit board 22, and the electrical contacts are in contact with the ends of each spring-loaded pin 213 on the spring-loaded base 25. In this way, the power is conducted from the input interface 23 to the spring-loaded pins 213 through the electrical contacts. The bottom of the corresponding second slot of the spring-loaded base 25 has holes, and the tips of the spring-loaded pins 213 protrude from the front of the spring-loaded cover 21 through these holes. When the spring-loaded device 20 and the contact device 10 are attracted together, the protruding tips of the spring-loaded pins 213 make tight contact with the tips of the contacts on the contact base 15 in the contact device 10.

[0043] The contacts on the contact base 15 have their tips exposed on the front of the contact cover 11 through holes opened at the bottom of the corresponding first slot 112. When the spring pin 213 contacts the contact, electricity is conducted from the spring pin 213 to the contact. The end of the contact contacts the electrical contacts on the contact circuit board 12, which are connected to the output interface 13 via circuitry. The output interface 13 is connected to the power terminal of the machine, thereby transferring power from the charging device to the machine to charge it.

[0044] During the charging process, the attraction force continuously generated by the first magnet 14 and the second magnet 24 ensures close contact between the spring pin 213 and the contact point, avoiding connection interruption due to slight vibration or movement of the machine equipment, and ensuring the stability and continuity of power transmission.

[0045] When the machine finishes charging or needs to disconnect from the charging connection, the operator only needs to apply an external force greater than the magnetic attraction force (or the machine can automatically generate a driving force to separate) to overcome the magnetic force between the first magnet 14 and the second magnet 24, thus separating the spring-loaded device 20 and the contact device 10. After separation, the spring-loaded device 213 loses contact with the contact, power transmission is interrupted, and the charging process ends. At the same time, since there is no mechanical action of plugging and unplugging, the wear and tear problems caused by repeated plugging and unplugging of traditional plug-and-play interfaces are avoided.

[0046] In one embodiment, the magnetic charging interface utilizes the magnetic attraction of the first magnet 14 and the second magnet 24. When the machine or equipment approaches the charging device, the spring-loaded device 20 and the contact device 10 automatically align and attract each other. This greatly simplifies the charging interface alignment operation and improves the convenience of charging the machine or equipment, whether the operator manually charges the machine or equipment automatically aligns with the charging device. Especially for automatic charging of the machine or equipment, it simplifies the complexity of the interface positioning and alignment algorithm. Furthermore, the magnetic charging interface achieves connection through magnetic attraction, avoiding mechanical friction during the insertion and removal process, reducing the risk of wear and tear on the interface, and extending the service life of the charging interface and the equipment.

[0047] In one embodiment, based on the above embodiments, referring to Figure 4 , Figure 6 and Figure 7 The bottom of the first slot 112 corresponding to the first magnet 14 is unobstructed, so that part of the first magnet 14 protrudes from the front of the contact cover 11; the first slot 112 corresponding to the contact seat 15 protrudes from the front of the contact cover 11.

[0048] In this embodiment, the bottom of the first slot 112 corresponding to the first magnet 14 adopts an unobstructed design. The main purpose of this design is to allow the first magnet 14 to partially protrude from the front of the contact cover 11. When the contact device 10 and the spring device 20 approach each other, the protruding first magnet 14 can more effectively exert its magnetic attraction. Because the strength of the magnetic field is closely related to the distance during the magnetic attraction process, the first magnet 14 being closer to the second magnet 24 in the spring device 20 means that the magnetic field interaction between the two is stronger, which can generate a greater attraction force. In this way, even if there is a certain angular deviation or positional offset between the contact device 10 and the spring device 20 when they approach each other, the strong magnetic attraction can quickly guide them to the accurate docking position, greatly improving the efficiency and accuracy of automatic alignment of the charging interface.

[0049] The first slot 112 of the contact base 15 protrudes from the front of the contact cover 11. This design is to better protect the contacts and ensure a reliable connection with the spring pin 213. The bottom of the protruding first slot 112 can form a structure similar to a "protective shield," surrounding the contacts. In this way, during daily use, external dust and debris are less likely to directly contact the contacts, reducing problems such as poor contact caused by dust accumulation or debris entering.

[0050] In one embodiment, based on the above embodiments, referring to Figure 7 The height of the first slot 112 portion corresponding to the contact seat 15 protruding from the front of the contact cover 11 is greater than the height of the first magnet 14 protruding from the front of the contact cover 11; at the mounting position of the contact device 10 inside the housing of the machine equipment, there is a slot hole for the first slot 112 portion corresponding to the contact seat 15 to protrude from the housing and be covered by the housing; the portion of the first magnet 14 protruding from the front of the contact cover 11 is protected by the housing.

[0051] In this embodiment, by providing a slot hole at the mounting position of the contact device 10 inside the outer casing of the machine equipment, the first slot 112 corresponding to the contact seat 15 is partially protruding from the outer casing. In this way, when the contact device 10 is installed in the machine equipment, the first slot 112 corresponding to the contact seat 15 can partially protrude from the outer casing and is not blocked by the outer casing, so that it can easily contact the spring needle device 20 provided on the charging device.

[0052] By setting the height of the first slot 112 portion of the contact seat 15 protruding from the front of the contact cover 11 to be greater than the height of the first magnet 14 protruding from the front of the contact cover 11, the portion of the contact device 10, except for the portion of the first slot 112 portion of the contact seat 15 protruding from the outer shell, including the portion of the first magnet 14, can continue to be protected by the outer shell of the machine equipment.

[0053] The first magnet 14 plays a crucial magnetic attraction role in the charging interface, but it is relatively fragile and easily affected by impacts. By setting a height difference, when the contact device 10 is built into the housing of the machine, the first magnet 14 continues to be protected by the housing. When the machine docks with the charging device, even in the event of a slight collision or shaking, the bottom of the protruding first slot 112, rather than the first magnet 14, will bear the impact force first. This effectively prevents the first magnet 14 from being damaged by impact, ensuring the stability and durability of its magnetism, thereby extending the service life of the charging interface.

[0054] The outer casing also provides a relatively enclosed environment for the first magnet 14, reducing interference from external factors. For example, dust, moisture, and other impurities may adhere to the surface of the first magnet 14, affecting its magnetic attraction performance. The outer casing can prevent these impurities from entering, keeping the first magnet 14 clean and dry. At the same time, the outer casing can also shield against external electromagnetic interference to a certain extent, ensuring the stability of the magnetic field of the first magnet 14 and improving the efficiency and reliability of magnetic charging.

[0055] In one embodiment, based on the above embodiment, the first magnet 14 includes a pair of magnetic strips, and the first slot 112 corresponding to the first magnet 14 is disposed on both sides of the first slot 112 corresponding to the contact seat 15.

[0056] The second magnet 24 includes a pair of magnetic strips, and the second slots corresponding to the second magnet 24 are respectively disposed on both sides of the second slots corresponding to the spring pin seat 25.

[0057] In this embodiment, the first magnet 14 consists of a pair of magnetic strips. As a magnetic material, the magnetic strips possess stable magnetic field characteristics. These two magnetic strips work together to generate a uniform and strong magnetic field, providing reliable magnetic support for the magnetic connection between the machine and the charging device.

[0058] The first slot 112 corresponding to the first magnet 14 is located on both sides of the first slot 112 corresponding to the contact seat 15. This distribution has several advantages. From a mechanical point of view, the first slots 112 on both sides can evenly distribute the magnetic attraction force around the contact seat 15. When the machine or equipment docks with the charging device, the magnetic force generated by the magnetic strip is applied from both sides, allowing the contact seat 15 to dock smoothly with the spring needle device 20, avoiding displacement or shaking caused by uneven magnetic force. From an electrical connection point of view, this layout can ensure that during the magnetic attraction process, the first slot 112 corresponding to the contact seat 15 can be accurately aligned with the second slot corresponding to the spring needle seat 25, thereby achieving stable power transmission. Just as the two ends of a bridge need stable supports, the first slots 112 on both sides provide reliable positioning and support for the docking of the contact seat 15.

[0059] The second magnet 24 also includes a pair of magnetic strips. Similar to the magnetic strips of the first magnet 14, these strips also possess good magnetic properties. They work in conjunction with the first magnet 14 in the charging device to achieve a magnetic connection between the device and the charging unit. When designing and selecting the magnetic strips of the second magnet 24, they are matched to the characteristics of the first magnet 14 to ensure that the magnetic force between them is moderate and stable. For example, if the magnetism of the first magnet 14 is strong, the magnetic parameters of the magnetic strips of the second magnet 24 also need to be adjusted accordingly to achieve the best magnetic attraction effect.

[0060] The second slots corresponding to the second magnet 24 are located on both sides of the second slot corresponding to the spring pin seat 25. This distribution corresponds to the layout of the first magnet 14 and its corresponding slots. When the machine or equipment docks with the charging device, the second slots on both sides attract each other with the first slots 112 on both sides, forming a stable magnetic attraction system. This not only helps improve the accuracy and stability of docking but also enhances the anti-interference capability of the entire charging interface. For example, when used in environments that may be subject to vibration or external interference, this symmetrically distributed slot design can make the magnetic connection more secure, reducing the occurrence of poor docking or charging interruptions caused by external factors.

[0061] The arrangement of the first magnet 14 and the second magnet 24, along with their corresponding slots, forms a collaborative system. When the machine approaches the charging device, the magnetic strips on both sides attract each other, guiding the contact seat 15 and the spring pin seat 25 to quickly and accurately engage.

[0062] In one embodiment, based on the above embodiments, referring to Figure 8 and Figure 9 The bottom of each second slot corresponding to the second magnet 24 is located on one side of the front of the spring pin cover 21, and two positioning members 212 are provided; a total of four positioning members 212 are configured to lock the bottom of the first slot 112 corresponding to the contact seat 15 when the contact device 10 contacts the spring pin device 20.

[0063] On the outer side of the housing of the machine, around the periphery of the slot protruding from the first slot 112 corresponding to the contact seat 15, there is a hole that is adapted to the positioning member 212.

[0064] In this embodiment, two positioning elements 212 are protruding from one side of the front of the spring pin cover 21 at the bottom of each second slot corresponding to the second magnet 24. This means that the four positioning elements 212 are arranged in pairs, each located at a specific position in the spring pin device 20 corresponding to the second slot. The positioning elements 212 typically have a certain shape and size, and can be relatively regular structures such as columnar or block-shaped. Their surfaces are smooth and their texture is sturdy to ensure that they will not be easily damaged when engaging with the bottom of the first slot 112 corresponding to the contact seat 15. This protruding arrangement allows the positioning elements 212 to form effective interference and engagement with the contact device 10 in space, laying the foundation for subsequent locking operations.

[0065] The configuration of four positioning elements 212 has the core function of locking the bottom of the first slot 112 corresponding to the contact seat 15 when the contact device 10 contacts the spring needle device 20. This ensures accurate alignment between the contact seat 15 and the spring needle seat 25, allowing for perfect contact between the two contacts and guaranteeing the stability and efficiency of power transmission. Furthermore, the locking function of the positioning elements 212 also enhances the robustness of the connection between the contact device 10 and the spring needle device 20. Even when the device is subjected to slight vibration or external interference, the positioning elements 212 prevent relative displacement between the contact seat 15 and the spring needle seat 25, avoiding any impact on the charging process.

[0066] On the outer side of the machine housing, around the periphery of the slot protruding from the first slot 112 corresponding to the contact seat 15, there are holes adapted to fit the positioning member 212. The positions of these holes are carefully designed to correspond one-to-one with the positions of the positioning member 212 on the spring pin device 20. Their size, shape, and depth are precisely matched to the positioning member 212 to ensure that the positioning member 212 can be smoothly inserted into the holes. The inner walls of the holes are generally relatively smooth to reduce friction when the positioning member 212 is inserted, making the docking process smoother.

[0067] The positioning element 212 and the hole on the housing form a tightly fitting system. When the contact device 10 mates with the spring pin device 20, the positioning element 212 not only locks into place at the bottom of the first slot 112 corresponding to the contact seat 15, but also inserts into the hole on the housing. This dual function further enhances the stability and reliability of the connection between the electrical device and the charging device. Furthermore, this fitting design can guide the user's operation to some extent. When the user brings the electrical device close to the charging device, the correspondence between the positioning element 212 and the hole indicates the correct docking direction and position, improving the convenience and accuracy of charging docking.

[0068] In one embodiment, based on the above embodiment, the contact base 15 is configured with 2×4 pin contacts; the spring pin base 25 is configured with 2×4 pin spring pins 213.

[0069] In this embodiment, 2×4 pin indicates that the contact base 15 and the spring pin base 25 each adopt a two-row, four-column layout. This matrix arrangement has many advantages: from a space utilization perspective, it can reasonably distribute multiple connection points within a relatively small area, making the charging interface design more compact. This is especially important for some small machines with high space requirements, such as companion robots and robotic vacuum cleaners, as it can achieve multi-channel power and signal transmission without increasing the device size. From an electrical performance perspective, this layout can make the transmission of current and signals more uniform and stable. Maintaining an appropriate spacing between the pins in each row and column reduces mutual electromagnetic interference and improves the reliability of transmission.

[0070] In one embodiment, based on the above embodiment, the contact cover 11 and the contact circuit board 12 are detachably connected;

[0071] And / or, the spring pin cover 21 and the spring pin circuit board 22 are detachably connected.

[0072] In this embodiment, the detachable connection can be achieved in a variety of ways, such as screw connection or snap-fit ​​connection.

[0073] Optionally, the detachable connection is preferably achieved by screw connection. Corresponding screw holes are reserved on the contact cover 11 and the contact circuit board 12 (and / or, on the spring pin cover 21 and the spring pin circuit board 22). The screws are fastened by passing through the screw holes. The screws can be unscrewed when disassembling.

[0074] In one embodiment, based on the above embodiment, the contact cover 11 is provided with first locking members 111 on both sides, and a locking groove is provided at the mounting position of the contact device 10 inside the housing of the machine equipment to cooperate with the first locking members 111.

[0075] And / or, the two sides of the spring pin cover 21 are provided with second locking members 211, and the spring pin device 20 mounting position inside the housing of the charging device is provided with a locking groove that cooperates with the second locking member 211.

[0076] In this embodiment, the locking groove provided at the mounting position of the contact device 10 inside the machine housing has a size and shape that precisely matches the first locking member 111. This fit ensures that the contact cover 11 is accurately installed at the mounting position of the contact device 10 inside the machine housing. During installation, the guiding effect of the first locking member 111 and the locking groove allows the contact cover 11 to be positioned quickly and accurately, avoiding problems such as poor contact that may be caused by installation deviations. Moreover, once installed in place, the clamping force between the first locking member 111 and the locking groove can prevent the contact cover 11 from loosening or falling off due to vibration, shaking, or other reasons during equipment use, ensuring the stability and reliability of the contact device 10.

[0077] Similar to the contact cover 11, the engagement of the second locking member 211 with the locking groove ensures that the spring pin cover 21 can be accurately installed in the spring pin device 20 mounting position within the charging device housing. During charging, the spring pin device 20 needs to maintain stable contact with the contact device 10 of the electrical device; the secure installation of the spring pin cover 21 is crucial to ensuring this contact stability. The locking action of the second locking member 211 with the locking groove prevents the spring pin cover 21 from shifting or loosening during the insertion / removal of the electrical device or the movement of the charging device, thereby avoiding poor contact between the spring pin 213 and the contacts and improving charging efficiency and reliability.

[0078] This utility model further proposes a charging robot system, which includes a robot and a charging device adapted to the robot; the contact device installed on the robot and the spring-loaded device installed on the charging device are combined to form a magnetic charging interface as described in the above embodiments. That is, the robot serves as the machine equipment with the contact device installed as described in the above embodiments.

[0079] The specific structure of the magnetic charging interface is as described in the above embodiments. Since this charging robot system adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0080] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A magnetic charging interface, characterized in that, include: The contact device includes a contact cover, a first magnet, a contact base, and a contact circuit board. The spring-loaded device includes a spring-loaded cover, a second magnet, a spring-loaded base, and a spring-loaded circuit board. The contact base has multiple contacts, and the spring-loaded base has a number of spring-loaded pins corresponding to the number of contacts. The first magnet and the contact base are respectively installed in the corresponding first slots inside the contact cover, with the bottom of the first slot facing the front of the contact cover. The bottom of the first slot corresponding to the contact base has holes that expose the top of each contact. The contact circuit board is set on the back of the contact cover and seals the contact cover. The contact circuit board is also provided with electrical contacts that contact the ends of each contact and electrically connect to the output interface. The output interface is used to connect to the power terminal of the machine equipment with the contact device installed. The second magnet and the spring pin holder are respectively installed in the corresponding second slot inside the spring pin cover, with the bottom of the second slot facing the front of the spring pin cover. The bottom of the second slot corresponding to the spring pin holder is provided with a hole for the tip of each spring pin to protrude. The spring pin circuit board is set on the back of the spring pin cover and seals the spring pin cover. The spring pin circuit board is also provided with an electrical connection point for contacting the end of each spring pin and for connecting the input interface. The input interface is used to connect to the power supply terminal of the charging device on which the spring pin device is installed.

2. The magnetic charging interface as described in claim 1, characterized in that, The bottom of the first slot corresponding to the first magnet is unobstructed, allowing the first magnet portion to protrude from the front of the contact cover; the first slot corresponding to the contact seat also protrudes from the front of the contact cover.

3. The magnetic charging interface as described in claim 2, characterized in that, The height of the first slot portion corresponding to the contact seat protruding from the front of the contact cover is greater than the height of the first magnet protruding from the front of the contact cover; at the contact device mounting position inside the housing of the machine equipment, there is a slot hole for the first slot portion corresponding to the contact seat to protrude from the housing and be covered by the housing; the first magnet protruding from the front of the contact cover is protected by the housing.

4. The magnetic charging interface as described in claim 3, characterized in that, The first magnet includes a pair of magnetic strips, and the first slot corresponding to the first magnet is disposed on both sides of the first slot corresponding to the contact seat; The second magnet includes a pair of magnetic strips, and the second slot corresponding to the second magnet is located on both sides of the second slot corresponding to the spring pin seat.

5. The magnetic charging interface as described in claim 4, characterized in that, The bottom of each second slot corresponding to the second magnet is located on one side of the front of the spring pin cover, and two positioning elements are provided; a total of four positioning elements are configured to lock the bottom of the first slot corresponding to the contact seat when the contact device contacts the spring pin device. On the outer side of the housing of the machine, around the periphery of the slot protruding from the first slot corresponding to the contact seat, there is a hole adapted to the positioning member.

6. The magnetic charging interface as described in claim 1, characterized in that, The contact base has a 2×4 pin contact configuration; the spring pin base has a 2×4 pin spring pin configuration.

7. The magnetic charging interface as described in claim 1, characterized in that, The contact cover and the contact circuit board are detachably connected; And / or, the spring pin cover and the spring pin circuit board are detachably connected.

8. The magnetic charging interface as described in claim 7, characterized in that, The contact cover is provided with first locking members on both sides, and a locking groove is provided at the contact device mounting position inside the outer shell of the machine equipment to cooperate with the first locking members. And / or, the two sides of the spring pin cover are provided with second locking members, and the spring pin device mounting position inside the housing of the charging device is provided with a locking groove that cooperates with the second locking member.

9. A charging robot system, characterized in that, The device includes a robot and a charging device adapted to the robot; the contact device installed on the robot and the spring-loaded device installed on the charging device are combined to form a magnetic charging interface as described in any one of claims 1-8.

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