Battery module of door lock and door lock

Abstract

The utility model relates to a battery module of a door lock and the door lock. The battery module comprises: a battery cell; the plug structure and the battery core are arranged at an interval, and the plug structure comprises a plug pin; wherein the plug pin is electrically connected with the battery cell and is used for being connected with a charging socket when the battery module is detached from the door lock and charging the battery cell. According to the embodiment of the invention, the plug structure with the plug pin is arranged on the battery module of the door lock, so that the charging modes of the battery module can be increased, the charging compatibility can be improved, and the charging rate and the charging stability of the battery module of the door lock can also be improved.

Description

Technical Field

[0001] This disclosure relates to the field of charging smart door locks, and more particularly to a battery module and door lock for a door lock. Background Technology

[0002] Currently, smart door locks have been widely adopted in various security scenarios, including homes, offices, and industrial sites; among these, the battery life of smart door locks has become an important focus.

[0003] In related technologies, the battery charging method for smart door locks has evolved from using 9V dry batteries for emergency power to adopting a Universal Serial Bus (USB) interface for wired transmission with external devices. The USB interface itself has changed from Micro USB to USB Type-C. However, USB interfaces require cable connections for transmission, leading to unstable charging connections. Furthermore, Micro USB interfaces have relatively slow charging speeds, with maximum power typically limited to 5V / 1A or 5V / 2A, making fast charging impossible. While USB Type-C interfaces support higher charging power and fast charging, they have significant compatibility issues, requiring adapters or cables when connecting older devices or accessories. Utility Model Content

[0004] To overcome the problems existing in related technologies, this disclosure provides a battery module for a door lock and a door lock. The embodiments of this disclosure, by providing a plug structure with plug pins on the battery module of the door lock, can increase the charging methods of the battery module, improve charging compatibility, and also improve the charging rate and charging stability of the door lock's battery module.

[0005] According to a first aspect of the present disclosure, a battery module for a door lock is provided; the battery module includes:

[0006] Battery cell;

[0007] A plug structure, spaced apart from the battery cell, includes plug pins;

[0008] The plug pins are electrically connected to the battery cell, and are used to connect to the charging socket and charge the battery cell when the battery module is removed from the door lock.

[0009] In some embodiments, the plug structure further includes a plug body; the plug pins are fixedly connected to the plug body;

[0010] The plug body is movably disposed on the battery module and is used to drive the plug pins to move.

[0011] In some embodiments, the battery module further includes:

[0012] The slide rail is spaced apart from the battery cell;

[0013] The plug body is movably mounted on the slide rail.

[0014] In some embodiments, the battery module further includes:

[0015] The battery casing, the plug structure, and the battery cell are located inside the battery casing;

[0016] At least one limiting structure is provided in the battery casing;

[0017] When the plug body is respectively limited and engaged with different limiting parts of the same limiting structure, the plug pins are respectively limited to the outside of the battery housing and limited to the inside of the battery housing;

[0018] Alternatively, when the plug body is respectively limited and engaged with the limiting structure at different positions, the plug pins are respectively limited to the outside of the battery housing and limited to the inside of the battery housing;

[0019] The plug pins are used to mate with the charging socket when the plug is located outside the battery housing.

[0020] In some embodiments, the plug body has a first end that connects to the plug pins and a second end that is away from the first end;

[0021] The limiting structure includes a movable limiting structure, which has a first limiting part and a second limiting part.

[0022] When the movable limiting structure moves to a preset limiting position, the first limiting part and the first end limiting cooperation are used to limit the plug pins to be located inside the battery casing; or, the second limiting part and the second end limiting cooperation are used to limit the plug pins to be located outside the battery casing.

[0023] When the movable limiting structure moves to a position other than the preset limiting position, the plug body can move within the battery casing.

[0024] In some embodiments, the battery module further includes:

[0025] A fixing member is fixedly disposed inside the battery housing and located on the side of the plug body away from the plug pins;

[0026] A first elastic element is located between the fixing element and the plug body, with one end connected to the fixing element and the other end connected to the plug body;

[0027] The first elastic element is in a deformed state when the first limiting part is engaged with the first end limiting part; and when the movable limiting structure moves to a non-preset limiting position, it recovers its elastic deformation to push the plug body to move.

[0028] In some embodiments, the battery module further includes:

[0029] An actuating part is disposed in the battery housing and is capable of moving into the battery housing; the actuating part is fixedly connected to the movable limiting structure;

[0030] When the actuating part moves into the battery casing, it causes the movable limiting structure to move away from the preset limiting position; and when it moves out of the battery casing, it causes the movable limiting structure to move closer to the preset limiting position.

[0031] In some embodiments, the battery module further includes:

[0032] The second elastic element is located inside the battery housing, with one end connected to the actuating part and the other end connected to the fixing part of the battery module;

[0033] The second elastic element is configured to deform when the actuating part is subjected to an external force and moves into the battery casing; and to recover its deformation when the external force on the actuating part is removed, so as to drive the actuating part to move out of the battery casing.

[0034] In some embodiments, the first limiting part is a limiting groove, and the second limiting part is a limiting slope.

[0035] In some embodiments, the active limiting structure includes two;

[0036] The two movable limiting structures are symmetrically distributed along the moving direction of the plug body.

[0037] In some embodiments, the plug pins include at least two;

[0038] At least two of the plug pins are spaced apart at different positions on the plug body.

[0039] In some embodiments, the plug has two pins.

[0040] According to a second aspect of the present disclosure, a door lock is provided; the door lock includes:

[0041] Door lock casing;

[0042] A door lock panel is disposed on the door lock housing;

[0043] The battery module mentioned in the first aspect above is detachably mounted on the door lock housing;

[0044] When the battery module is assembled in the door lock housing and located between the door lock panel and the door lock housing, it is electrically connected to the door lock panel and supplies power to the door lock panel.

[0045] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0046] For the battery module of the door lock, this disclosure provides a plug structure with plug pins on the battery module. These plug pins can connect to a charging socket to charge the battery module. In this way, by setting a plug structure, not only are the charging methods of the battery module increased, improving the diversity of charging methods, but also, because the plug pins can be matched with more sockets, the charging compatibility is higher than that of charging with a USB Type-C interface, and it supports higher charging speeds. Furthermore, charging with plug pins does not require external cables, effectively improving charging stability.

[0047] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0048] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0049] Figure 1 This is a schematic diagram of the structure of a battery module according to an exemplary embodiment. Figure 1 .

[0050] Figure 2 This is a schematic diagram of the structure of a battery module according to an exemplary embodiment. Figure 2 .

[0051] Figure 3 This is a schematic diagram illustrating the distribution of a charging interface according to an exemplary embodiment.

[0052] Figure 4 This is a schematic diagram of a plug structure according to an exemplary embodiment.

[0053] Figure 5 This is a schematic diagram showing the position of plug pins according to an exemplary embodiment.

[0054] Figure 6 This is a schematic diagram of the internal structure of a battery module according to an exemplary embodiment;

[0055] Figure 7 This is a schematic diagram illustrating the charging of a battery module inside a door lock according to an exemplary embodiment.

[0056] Figure 8 This is a schematic diagram illustrating the power supply of a battery module inside a door lock according to an exemplary embodiment.

[0057] in, Figures 1 to 6 The reference numerals in the accompanying drawings are as follows:

[0058] 1. Plug structure; 11. Plug pins; 12. Plug body; 121. First end; 122. Second end; 2. Battery casing; 3. Charging interface; 4. Movable limiting structure; 41. First limiting part; 42. Second limiting part; 5. Fixing member; 6. First elastic member; 7. Actuating part; 8. Connecting section; 9. Second elastic member. Detailed Implementation

[0059] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0060] Figure 1 This is a schematic diagram of the structure of a battery module that can be detachably disposed in a door lock according to an exemplary embodiment. Figure 1 ;like Figure 1 As shown, the battery module used in the door lock includes:

[0061] Battery cell (not shown);

[0062] The plug structure 1 is spaced apart from the battery cell and includes plug pins 11.

[0063] The plug pin 11 is electrically connected to the battery cell and is used to connect to the charging socket and charge the battery cell when the battery module is removed from the door lock.

[0064] Here, the battery module proposed in this embodiment is detachably installed in the door lock. When installed in the door lock, it can supply power to the door lock panel through a connecting wire to support the normal use of the door lock panel. When removed from the door lock, the battery module can be charged through the electrical connection between the plug pins and the charging socket.

[0065] It should be noted that the battery module proposed in this disclosure is also applicable in other scenarios, such as being detachably connected to televisions, remote controls, and computer equipment, and being charged through the electrical connection between the plug pins and the charging socket when removed.

[0066] See Figure 1 The battery module also includes a battery housing 2, which serves as a protective shell to protect the internal structural components of the battery module and improve battery charging safety.

[0067] The battery casing can be made of stainless steel, aluminum, or plastic, etc. For example, the battery casing proposed in this embodiment is an aluminum casing. Aluminum has advantages such as fast heat dissipation, light weight, low cost, corrosion resistance and high temperature resistance, so it can better protect the internal structure of the battery module and ensure the charging and discharging performance of the battery module.

[0068] In this embodiment, the battery module includes a battery cell located within a battery casing. The battery cell stores electrical energy and releases it when the battery module supplies power to the door lock panel in a door lock. The battery cell comprises a positive electrode, a negative electrode, a separator, an electrolyte, and a battery cell casing. Electrolyte particles within the battery cell can flow between the positive and negative electrodes via the electrolyte, thereby enabling the charging and discharging functions of the battery module. The battery cell casing encapsulates and protects the internal structure of the battery cell. The material of the battery cell in this disclosure is not limited, meaning the type of battery module described above is not limited.

[0069] In some embodiments, the battery cell material includes lithium-ion batteries.

[0070] Here, the battery cell material includes lithium ions, that is, the above battery module is a lithium ion battery; the positive electrode is usually made of lithium compounds (such as lithium cobalt oxide, lithium manganese oxide, ternary materials, etc.), the negative electrode is made of graphite or other materials that can reversibly insert and extract lithium ions, the separator is used to isolate the positive and negative electrodes to prevent short circuits, and the electrolyte allows lithium ions to move between the positive and negative electrodes.

[0071] The working principle of a lithium-ion battery cell is based on the aforementioned migration of lithium ions. During charging, an external power source provides electrical energy to the battery, causing lithium ions on the positive electrode to migrate through the electrolyte to the negative electrode and embed themselves in the negative electrode material. Simultaneously, electrons flow from the positive electrode to the negative electrode through an external circuit, forming a charging current. During discharging, lithium ions are deintercalated from the negative electrode material, migrate through the electrolyte to the positive electrode, and embed themselves in the positive electrode material. Simultaneously, electrons flow from the negative electrode to the positive electrode through an external circuit, providing electrical energy. Specifically, when the battery module is assembled in a door lock, it provides electrical energy to the door lock panel.

[0072] Understandably, lithium-ion batteries have many advantages, such as high energy density, long cycle life, no memory effect, light weight, small size, environmental friendliness and safety, and strong adaptability to high and low temperatures, which can improve the practicality of battery modules in real-world applications.

[0073] In other embodiments, the battery module may also be a sodium-ion battery, with the cell material being sodium ions. During charging, sodium ions are extracted from the positive electrode material and embedded into the negative electrode material through the electrolyte, and the reverse occurs during discharging.

[0074] In some other embodiments, the battery module may also be a lead-acid battery, a nickel-cadmium battery, etc., with the battery cell material configured accordingly to receive charging from an external power source and to supply power to the electrical equipment (door lock panel) connected to the battery module.

[0075] Here, the battery module is also equipped with a plug structure, which includes plug pins that are connected to the battery cells. These pins are used to match and connect with the socket of the charging outlet and obtain power from the charging outlet to charge the battery cells inside the battery module.

[0076] It should be noted that, since the charging socket provides higher power, higher voltage, and faster charging speed, such as when using household charging, the battery module can improve the charging speed and stability by cooperating with the charging socket through the plug structure.

[0077] In one example of this disclosure, the plug structure may be exposed on the battery housing, in which case the door lock has a receiving groove for accommodating the plug structure when the battery module is assembled with the door lock; in another example of this disclosure, the plug structure may also be a structure movably disposed on the battery module. In order to protect the plug pins, this disclosure may hide the plug pins when not charging and extend the plug pins when needed so that the plug pins can mate with the socket.

[0078] It should be noted that the plug pins proposed in this embodiment can be one or more. One plug pin can form a charging line with the battery cell on its own, and multiple plug pins can form one or more charging lines with the battery cell. The charging socket that matches the plug pins can support the insertion of one pin or multiple pins, and this embodiment does not limit this.

[0079] For example, the plug structure may have 3 plug pins, and correspondingly, the matching socket has three sockets.

[0080] In some embodiments, the material of the plug pins is copper.

[0081] Here, the plug pins can be made of 100% pure copper. Copper has good conductivity, is easy to process, has low cost, and has good corrosion resistance, which improves the charging effect of using a plug structure for battery charging.

[0082] Of course, in other embodiments, the material of the plug pins can also be aluminum, or copper-aluminum alloy, etc., and this disclosure does not limit this.

[0083] In this embodiment of the disclosure, the battery module also has a charging interface for connecting to the battery cell, such as a Micro USB interface or a USB Type-C interface. The charging interface also supports external power supply to charge the battery module through an external USB plug.

[0084] For example, see Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of a battery module according to an exemplary embodiment. Figure 2 ; Figure 3 This is a schematic diagram illustrating the distribution of a charging interface according to an exemplary embodiment; combined with Figure 2 and Figure 3 The charging interface 3 and the plug pins 11 of the plug structure are distributed at different positions on the battery casing 2.

[0085] In this embodiment, the battery module is provided with a plug structure having plug pins. These plug pins can connect to an external socket to charge the battery module. This plug structure not only increases the number of charging methods for the battery module, improving charging diversity, but also, because the plug pins can be matched with more sockets, offers higher charging compatibility and supports higher charging speeds compared to using a USB Type-C interface. Furthermore, charging using the plug pins eliminates the need for external cables, effectively improving charging stability. In addition, in this embodiment, the plug pins can extend out of the battery housing through a first opening when charging is needed and retract into the battery housing when charging is not needed. This reduces the risk of moisture short circuits and accidental wear caused by excessive exposure of the plug pins when charging is not required, increasing the safety and lifespan of the battery module.

[0086] In this embodiment of the disclosure, for the battery module of the door lock, a plug structure with plug pins is provided on the battery module. The plug pins can be connected to a charging socket to charge the battery module. In this way, by setting the plug structure, not only are the charging methods of the battery module increased, improving the diversity of charging methods, but also because the plug pins can be matched with more sockets, the charging compatibility is higher than that of charging with a USB Type-C interface, and it supports higher charging speed. Furthermore, charging with plug pins does not require external cables, effectively improving charging stability.

[0087] In some embodiments, see Figure 4 , Figure 4 This is a schematic diagram of a plug structure according to an exemplary embodiment; combined with Figure 4 As shown,

[0088] The plug structure 1 also includes a plug body 12; the plug pins 11 are fixedly connected to the plug body 12;

[0089] The plug body 12 is movably mounted on the battery module to drive the plug pins 11 to move.

[0090] Here, the plug pins can be connected to the plug body via adhesive, or they can be fixed to the plug body by drilling or other means.

[0091] In this embodiment of the disclosure, the plug body is made of an insulating material, such as a rubber part, a plastic part, etc.; wherein, the plug body may have an internal space, and an electrical connector, such as a connecting lead / pin / spring, is provided in the internal space; thus, the plug pins can be electrically connected to the internal connecting lead, and the internal connecting lead can be electrically connected to the aforementioned battery cell.

[0092] Here, the plug body of the plug structure is movably mounted on the battery module. When the battery module has a battery casing, the plug structure can be movably mounted inside the battery casing or outside the battery casing.

[0093] In the example where the plug body is located outside the battery casing and moves outside the battery casing, a recessed area is provided outside the battery casing. The recessed area can accommodate the entire plug structure (plug body and plug). When the battery module does not need to be charged, the plug structure is located in the recessed area, thus reducing the probability of wear on the plug pins. When the battery module needs to be charged, the plug body can be moved so that the plug body drives the plug pins to protrude outward from the recessed area, and at least the length matching the socket of the charging socket is exposed. At this time, the plug pins can achieve a stable plug-in connection with the external charging socket and can also carry a suitable charging current to achieve effective charging of the battery module.

[0094] It should be noted that in this example, the movement of the plug body can be either translational or rotational, and this disclosure does not limit this. During translational movement, a blocking member can be provided on / inside the battery housing. This blocking member can limit the plug pins to a specified position so that when the plug pins are in that position, they can be effectively embedded in the socket to achieve electrical connection with the charging socket.

[0095] In an example where the plug body is disposed within and moves within the battery housing, the battery housing also has a first opening, the plug body is located within the battery housing and faces the first opening, wherein the plug pins are fixedly connected to the plug body and extend toward the first opening.

[0096] In this example, the plug body can move inside the battery casing, such as between a first active position and a second active position. The first active position is near the first opening, and the second active position is away from the first opening. Thus, since the plug body acts as a carrier for the plug pins, when the plug body moves to the first active position, all or part of the plug pins extend through the first opening and are exposed outside the battery casing. The portion exposed outside the battery casing can be inserted into the charging socket, thereby enabling charging of the battery module through the plug pins and the charging socket. When the plug body moves to the second active position, the plug pins move along the first opening into the battery casing until they are hidden inside the battery casing. When the plug pins are hidden inside the battery casing, there is a specified safe distance between the plug pins and the inner wall of the battery casing, or the plug pins are partially located in the first opening and flush with the outer wall of the battery casing.

[0097] Here, in this embodiment of the present disclosure, a movable key can also be provided on the battery casing, and the movable key is fixedly connected to the plug body; in this way, the user can push the movable key to move towards the first opening, thereby guiding the plug body to move from the second movable position to the first movable position; or, the user can push the movable key to move away from the first opening, thereby guiding the plug body to move from the second movable position to the first movable position.

[0098] It should be noted that, in this example, at least one engaging structure is also provided inside the battery casing, which can relatively fix the position of the plug structure when the plug body is in the first active position / second active position.

[0099] This embodiment of the invention provides a movable plug body, which allows for flexible control of the plug structure's position. This enables the plug structure to stably engage with the charging socket when charging is required, or to move to a designated position when charging is not needed, thus hiding the plug pins, protecting them from wear, and improving safety.

[0100] In some embodiments, the plug pins include at least two;

[0101] At least two plug pins are spaced apart at different positions on the plug body.

[0102] Here, at least two plug pins can be set on a plug body. The at least two plug pins are set at different positions on the plug body and are connected to the inside of the battery cell through the charging cable set in the plug body. In this way, the plug structure increases the contact points between the plug and the external charging socket, improves the charging connection stability, and thus improves the charging continuity of the battery module.

[0103] In some embodiments, the plug has two pins.

[0104] in, Figure 2 The diagram shows a 2-pin plug structure that can connect to a charging socket with two prongs. One pin connects to the positive terminal of the external power supply, and the other pin connects to the negative terminal. This 2-pin plug structure is simple, inexpensive, and therefore practical.

[0105] In some other embodiments of this disclosure, the plug pins can also be set to three, forming a 3-pin plug structure. This 3-pin plug structure can be connected to a charging socket with three sockets. The charging socket can be a single-phase three-hole socket that can be connected to a household power supply. In this case, the three pins can be connected to the live wire, neutral wire, and ground wire, respectively. This configuration enables the battery module to be charged based on a household power supply, thereby improving the charging rate.

[0106] In some embodiments of this disclosure, the plug pins can be set to four or more. Taking a 4-pin plug structure as an example, the four pins can be connected to the positive power supply, the negative power supply (ground wire), and additional signal or auxiliary power lines, etc.

[0107] In some embodiments, the battery module further includes:

[0108] The slide rail is spaced apart from the battery cell;

[0109] The plug body is movably mounted on the slide rail.

[0110] Here, the slide rail and the battery cells inside the battery casing are spaced apart; at both ends of the slide rail, there are blocking components such as blocks, which are used to prevent moving objects on the slide rail from falling off the slide rail.

[0111] In this embodiment of the disclosure, the movable object provided on the slide rail is the aforementioned plug body, so that the plug body can move along the slide rail between the two ends of the slide rail (at this time, the two ends of the slide rail are respectively the first movable position and the second movable position).

[0112] In some examples of this disclosure, the slide rail can be a single strip or arc-shaped track. In this case, the plug body has a recessed area, and the slide rail can be movably embedded in the recessed area to guide the plug body to slide on the slide rail. In other examples of this disclosure, the slide rail can be a double strip or arc-shaped track, and the double track can form a recessed area. In this case, the plug body can be embedded in the recessed area, thereby sliding in the recessed area.

[0113] The embodiments disclosed herein, by providing a slide rail structure, can effectively guide and restrict the movement of the plug body between the first active position and the second active position, thereby improving the problem of misalignment of the plug pins caused by misalignment of the plug body.

[0114] In some embodiments, the battery module further includes:

[0115] The battery casing, plug structure, and battery cell are located inside the battery casing;

[0116] At least one limiting structure is provided in the battery casing;

[0117] When the plug body is respectively limited and engaged with different limiting parts of the same limiting structure, the plug pins are respectively limited to the outside of the battery housing and limited to the inside of the battery housing.

[0118] Alternatively, when the plug body is engaged with limiting structures at different positions, the plug pins are respectively limited to the outside of the battery housing and limited to the inside of the battery housing;

[0119] The plug pins are used to mate with the charging socket when the plug is located outside the battery housing.

[0120] Here, continuing from the example above, the plug structure and the battery cell are spaced apart inside the battery casing. The battery cell is connected to the plug pins through electrical connectors inside the plug structure. The plug structure can move inside the battery casing. The battery casing has a first opening. The plug pins can extend from the first opening to the outside of the battery casing based on the movement of the plug structure, and match and connect with the charging socket. The plug pins can also retract into the battery casing through the first opening, thereby forming a compact whole with the battery module.

[0121] See Figure 5 , Figure 5 This is a schematic diagram showing the position of plug pins according to an exemplary embodiment. Figure 5 In the middle, the two plug pins 11 are hidden inside the battery casing 2.

[0122] In this embodiment of the disclosure, considering the stability of plug insertion and removal between the plug pins and the socket when the plug pins extend outside the battery housing, and the problem that the plug pins will not freely come out due to the shaking of the battery module itself when they retract into the battery housing, this embodiment of the disclosure also provides at least one limiting structure to limit the plug structure and fix the position of the plug pins by limiting the plug structure.

[0123] In some examples, when the plug body is respectively limited and engaged with different limiting parts of the same limiting structure, the plug pins are respectively limited to the outside of the battery housing and limited to the inside of the battery housing.

[0124] Here, a limiting structure can be a rigid spring structure with two extensions, which serve as two limiting parts respectively. One limiting part is close to the first opening, and the other limiting part is away from the first opening. Both limiting parts are located between the first active position and the second active position. In this case, the plug body can pass over the limiting part near the first opening to reach the first active position with the help of the force of other working parts. However, since the limiting part cannot retract freely, a stable matching connection between the plug pins and the socket interface is ensured. If charging is not performed, the plug body can be pushed through the two limiting parts to reach the second active position with the help of the opposite external force. However, due to the resistance of the other limiting part, it cannot move freely towards the first opening. This ensures that the plug pins can be effectively hidden inside the battery casing.

[0125] It should be noted that the limiting structure in this example can also be set to two symmetrical structures, clamping the position of the plug body from two directions and further limiting the position of the plug pins.

[0126] In other examples, when the plug body is engaged with limiting structures at different positions, the plug pins are respectively limited to the outside of the battery housing and limited to the inside of the battery housing.

[0127] Here, taking two limiting structures as an example, one limiting structure is close to the first opening, and the other limiting structure is far from the first opening. The two limiting structures are located between the first active position and the second active position.

[0128] The two limiting structures can be spring blocks with a certain hardness or hard spring sheets. The two limiting structures can be the same or different. The limiting principle of the two limiting structures on the plug body can be referred to the limiting principle of the two limiting parts on the plug body mentioned above. This disclosure will not elaborate on it here.

[0129] In this embodiment, the plug pins can retract into the battery casing when charging is not required. This reduces the risk of moisture-induced short circuits and accidental wear caused by excessive exposure of the plug pins when charging is not needed, thus increasing the safety and lifespan of the battery module. When charging is required, the plug pins can extend out of the battery casing through the first opening to engage with the charging socket. Here, due to the at least one limiting structure proposed in this disclosure, the plug pins can be limited when engaging with the charging socket outside the battery casing, ensuring the stability of the insertion; it can also be limited when the plug pins are inside the battery casing, preventing them from dislodging due to shaking or other reasons.

[0130] In some embodiments, see Figure 6 , Figure 6 This is a schematic diagram of the internal structure of a battery module according to an exemplary embodiment; wherein, the plug body 12 has a first end 121 connected to the plug pin 11 and a second end 122 away from the first end;

[0131] The limiting structure includes a movable limiting structure 4, which has a first limiting part 41 and a second limiting part 42.

[0132] When the movable limiting structure 4 moves to the preset limiting position, it engages with the first limiting part 41 and the first end 121 to limit the plug pin 11 to be located inside the battery housing 2; or, it engages with the second limiting part 42 and the second end 122 to limit the plug pin 11 to be located outside the battery housing 2.

[0133] When the movable limiting structure 4 moves to a position other than the preset limiting position, the plug body 12 can move within the battery housing 2.

[0134] Here, when the movable limiting structure is located at the preset limiting position and the plug body is located at the second movable position, the first limiting part is used to cooperate with the first end limiting to prevent the plug body from moving to the first movable position; when the movable limiting structure is located at the preset limiting position and the plug body is located at the first movable position, the second limiting part is used to cooperate with the second end limiting to prevent the plug body from moving to the second movable position; when the movable limiting structure is away from the preset limiting position, the plug body moves between the first movable position and the second movable position.

[0135] Here, when the plug body is a prism structure, the first end and the second end can be two opposite apexes; wherein, the plug body has a first connecting surface and a second connecting surface opposite to the first connecting surface; the first connecting surface is opposite to the first opening and is used to fix the plug pins; the second connecting surface is used to connect the elastic element. At this time, the first end is located at the edge of the first fixing surface, the second end is located at the edge of the second fixing surface, and the first end and the second end are connected to the same side surface of the plug body, which is located at the aforementioned preset limiting position.

[0136] In this embodiment, the movable limiting structure can be positioned at a preset limiting position or away from the preset limiting position under the control of an external force. When positioned at the preset limiting position, the movable limiting structure restricts the position of the plug body, preventing it from moving from a first movable position to a second movable position, or vice versa. When the movable limiting structure is controlled to move away from the preset limiting position, the plug body can move flexibly between the first and second movable positions under the action of an external force or internal elastic elements.

[0137] It should be noted that when the first end is engaged with the first limiting part, if the movable limiting structure is triggered to leave the preset limiting position in response to charging demand, the plug body can be pushed along the slide rail to the first movable position by other internal structures (such as an elastic element). When the plug body moves to the first movable position, the movable limiting structure can be triggered to reset, and the second limiting part of the movable limiting structure engages with the second end. At this time, the plug body will not be subjected to a reverse force and retract into the battery casing when inserted into the socket, ensuring the effectiveness of insertion and removal.

[0138] After charging is completed, the active limiting structure needs to be triggered to leave the preset limiting position, and the plug pin is returned to the first active position by external force; then the active limiting structure is triggered to reset, and the first limiting part of the active limiting structure cooperates with the first end limiting part, so that the plug body moves in the direction of the first opening and is dislodged from the battery casing.

[0139] In this embodiment, the limiting fit between the first limiting part and the first end can be a limiting fit between a groove and a protrusion, or a limiting fit between a protrusion and a groove. It can also be an abutment fit formed by friction between limiting inclined surfaces; this embodiment does not limit this. Correspondingly, the limiting fit between the second limiting part and the second end can also be any of the above-mentioned limiting fits; this embodiment does not limit this.

[0140] Thus, by setting the above-mentioned movable limiting structure, the first limiting part can control the plug structure to be located inside the battery housing when the battery module is not being charged, thereby making the battery module structure more compact and fully protecting the plug pins from external dust and moisture. The second limiting part of the movable limiting structure can block the plug pins of the plug structure when the battery module needs to be charged, preventing them from retracting into the battery housing, ensuring the stability of plug pin insertion and removal between the plug pins and the external socket, and further improving the stability of the charging connection.

[0141] In some embodiments, combined with Figure 6 As shown, the battery module also includes:

[0142] The fixing member 5 is fixedly installed inside the battery housing 2 and is located on the side of the plug body 12 away from the plug pin 11;

[0143] The first elastic member 6 is located between the fixing member 5 and the plug body 12, with one end connected to the fixing member 5 and the other end connected to the plug body 12.

[0144] The first elastic member 6 is in a deformed state when the first limiting part 41 is limited and engaged with the first end 121; and when the movable limiting structure 4 moves to a non-preset limiting position, it restores its elastic deformation to push the plug body 12 to move.

[0145] Here, the fastener can be fixed inside the battery casing by one or more methods such as snap-fit, drilling, welding, or gluing, and is spaced apart from the battery cell; the fastener is positioned opposite to the first opening, and the aforementioned slide rail is provided between the fastener and the first opening, so that the plug body can move in a straight line along the slide rail between the fastener and the first opening, thereby improving the flexibility of the plug structure.

[0146] In this embodiment, one end of the first elastic member is fixedly connected to the fixing member, and the other end is fixedly connected to the plug body. When there is no charging demand, the plug body is in the first movable position, and the plug pins are inside the battery casing. The movable limiting structure is in a preset limiting position, the first limiting part engages with the first end, and compresses the first elastic member to undergo elastic deformation. At this time, the first elastic member has a predetermined elastic force. When the battery module has a charging demand, the movable limiting structure can be moved away from the preset limiting position. At this time, the first elastic member recovers its elastic deformation, pushing the plug body along the slide rail from the second movable position to the first movable position, and pushing the plug pins out from the first opening to achieve electrical connection with an external power source. After extension, the movable limiting structure can be reset to the preset limiting position so that the second limiting part engages with the second end.

[0147] The first elastic element mentioned above can be elastic foam, a spring, or an elastic plastic part, etc., and this embodiment does not limit this. For example, Figure 6 The first elastic element 6 in the middle is a spring structure.

[0148] It should be noted that the fixing member and the plug body are arranged opposite to each other. In order to improve the stability of the first elastic member pulling the plug body from the first active position to the second active position, this embodiment of the present disclosure can provide multiple first elastic members, and the multiple first elastic members are connected at intervals between the fixing member and the plug body; for example, Figure 5 There are two spring structures between the fixing member 5 and the plug body 12.

[0149] Thus, by providing a fixing member and a first elastic member that connects the fixing member and the plug body respectively, the plug structure can be moved conveniently and flexibly from the first active position to the second active position without the aid of external force.

[0150] Of course, in some other embodiments of this disclosure, the first elastic element can also be configured as a third elastic element connected to the fixing element, wherein one end of the third elastic element is connected to the fixing element and the other end is connected to the plug body, and the third elastic element is used to undergo elastic deformation (tensile deformation) when the plug body moves from the second active position to the first active position, and when the third elastic element recovers its elastic deformation, it drives the plug body to move back from the first active position to the second active position. That is, during the process of controlling the plug body to move to the first active position, the third elastic element is stretched, so that the third elastic element has elastic tension, and due to the limitation of the active limiting structure, the plug body is located at the first active position; when charging is not required, the limitation of the active limiting structure can be removed, at which time the third elastic element recovers its deformation under the action of elastic tension and pulls the plug body back to the second active position, at which time the plug pins are retracted into the battery casing.

[0151] In some embodiments, combined with Figure 6 The first limiting part 41 is a limiting groove, and the second limiting part 42 is a limiting slope.

[0152] Here, when the first limiting part is a limiting groove, the first end is protruding. Thus, when the movable limiting structure is in the preset limiting position and the plug body is in the second movable position, the first end can be securely engaged in the limiting groove. Because the limiting fit between the groove and the protrusion is more secure and the limiting stability is higher, the plug structure will not move and accidentally pop out of the first opening when charging is not required.

[0153] Furthermore, when the second limiting part is set as a limiting slope, the second end also exhibits a sloped state, and the inclination angle of the limiting slope is complementary to the inclination angle of the second end; that is, when the plug body is in the first movable position, the second end and the second limiting part can fit tightly together. At this time, since the movable limiting structure is fixed at the preset limiting position, the plug body cannot continue to move to the second movable position under the support force and friction force provided by the second limiting part.

[0154] Thus, by setting the first limiting part and the second limiting part to different forms, the diversity of the limiting methods of the movable limiting structure is improved in this embodiment of the present disclosure.

[0155] In some embodiments, combined with Figure 6 The battery module also includes:

[0156] The actuating part 7 is disposed in the battery housing 2 and is capable of moving into the battery housing 2; the actuating part 7 is fixedly connected to the movable limiting structure 4;

[0157] When the actuating part 7 moves into the battery housing 2, it causes the movable limiting structure 4 to move away from the preset limiting position; and when it moves out of the battery housing 2, it causes the movable limiting structure 4 to move closer to the preset limiting position.

[0158] Here, the battery casing has a second opening for the actuating part to pass through. The second opening and the first opening can be located on different surfaces of the battery casing. The actuating part is formed in the form of a button and is made of insulating material. When pressed by a user's finger, the actuating part can move into the battery casing along the second opening; and when pushed by other structures inside the battery casing or dragged outward by the user, it can move outward along the second opening.

[0159] like Figure 6As shown, the movable limiting structure 4 is a strip-shaped component. The top of the movable limiting structure 4 is provided with the aforementioned first limiting part 41 and second limiting part 42. The tail of the movable limiting structure 4 is connected to a rotating shaft. The actuating part 7 is connected to the movable limiting structure 4 through a connecting section 8, and the connecting section 8 and the movable limiting structure 4 are connected on the same rotating shaft. Thus, when the actuating part 7 is not subjected to external force and does not move along the second opening, the connecting section 8 will not move. At this time, the movable limiting structure 4 is fixed at the preset limiting position and will not move, which can be used to limit the position of the plug body 12. When the actuating part 7 is subjected to external force and moves inward along the second opening, the connecting section 8 moves towards the fixing part 5 under the drive of the actuating part 7, thereby driving the rotating shaft to rotate, further driving the movable limiting structure 4 to rotate away from the preset limiting position. At this time, the plug body 12 can move freely between the first movable position and the second movable position. In addition, when the external force acting on the action part 7 is removed, or when the action part 7 is pushed outward along the second opening by other structures inside the battery housing 2, the connecting section 8 moves away from the fixing member 5 under the drive of the action part 7, thereby driving the rotating shaft to rotate and reset, and further driving the movable limiting structure 4 to move and reset to the preset limiting position.

[0160] Thus, by providing an active part, the position of the movable limiting structure can be flexibly controlled in this embodiment, further enabling the plug structure to move between the inside and outside of the battery casing.

[0161] In some embodiments, combined with Figure 6 The battery module also includes:

[0162] The second elastic member 9 is located inside the battery housing 2, with one end connected to the actuating part 7 and the other end connected to the fixing member 5 of the battery module.

[0163] The second elastic member 9 is used to deform when the actuating part 7 is subjected to an external force and moves into the battery housing 2; and to restore its deformation when the external force on the actuating part 7 is removed, so as to drive the actuating part 7 to move out of the battery housing 2.

[0164] Here, the fastener has a third connecting surface fixedly connected to the first elastic member, and a side surface adjacent to the third connecting surface. The second opening and the aforementioned side surface of the fastener are disposed opposite to each other. One end of the second elastic member is connected to the actuating part, and the other end is connected to the fastener. Thus, the extension and retraction direction of the first elastic member is perpendicular to the extension and retraction direction of the first elastic member. The form of the second elastic member can be the same as or different from that of the first elastic member; for example, both can be... Figure 6 The spring structure is shown.

[0165] In this embodiment of the present disclosure, when the battery module needs to be charged, the pressing part can be pressed. At this time, the pressing part moves into the battery housing, and the movable limiting structure leaves the preset limiting position under the action of the pressing part, the connecting section, and the rotating shaft. When the first elastic member is pressed and moves into the battery housing along the second opening, it undergoes compression deformation. At this time, the first elastic member will push the plug body from the first movable position to the second movable position during the process of restoring elastic deformation, and the plug pins will be exposed from the first opening. At this time, the pressing action on the pressing part ends, the second elastic member restores its deformation, and pushes the pressing part to reset during the process of restoring deformation. Thus, the movable limiting structure returns to the preset limiting position under the action of the pressing part, the connecting section, and the rotating shaft, thereby realizing the position restriction of the plug structure. When the charging of the battery module ends, the present embodiment can also press the action part. At this time, the first elastic member is compressed and deformed when it moves into the battery housing along the second opening under the pressing action. The movable limiting structure leaves the preset limiting position under the action of the action part, the connecting section and the rotating shaft. The user pushes the plug pin in the direction of the first opening so that the plug body returns to the first movable position. Then the pressing action on the action part ends, the second elastic member recovers its deformation, and pushes the action part to reset during the recovery process. Thus, the movable limiting structure returns to the preset limiting position under the action of the action part, the connecting section and the rotating shaft, thereby realizing the position restriction of the plug structure.

[0166] Thus, by providing a second elastic element, the automatic reset of the active part and the movable limiting structure can be flexibly achieved without the aid of external force in this embodiment of the present disclosure.

[0167] In some embodiments, combined with Figure 6 The activity limiting structure 4 includes two;

[0168] Two movable limiting structures 4 are symmetrically distributed along the movable direction of the plug body 12.

[0169] It is understandable that when a slide rail is provided inside the battery casing, two movable limiting structures are symmetrically distributed on both sides of the slide rail and are movably set at two relative preset limiting positions.

[0170] Accordingly, in this embodiment, there are two of each of the second opening, the aforementioned functional part, the connecting end, the rotating shaft, and the second elastic element provided on the battery casing, and they are all symmetrically distributed along the direction of movement of the plug body.

[0171] In this way, while holding the battery module with one hand, the user can use two fingers to simultaneously apply force to the two active parts, causing the two symmetrically distributed movable limiting structures to move away from their respective preset limiting positions. The other hand can then adjust the position of the plug pins, thus improving the operability of returning the plug structure into the battery casing.

[0172] It should be noted that the plug pins proposed in the embodiments of this disclosure have good conductivity, and the material of the plug pins can be a metal material.

[0173] This disclosure also provides a door lock; the door lock includes:

[0174] Door lock casing;

[0175] The door lock panel is mounted on the door lock housing.

[0176] The battery module proposed in the above embodiments of this disclosure is detachably mounted on the door lock housing;

[0177] When the battery module is assembled in the door lock housing and located between the door lock panel and the door lock housing, it is electrically connected to the door lock panel and supplies power to the door lock panel.

[0178] In this embodiment, the door lock is a smart door lock, which includes a door lock housing, a door lock panel, a lock body, and a battery module. The lock body is disposed between the door lock housing and the door lock panel. The battery module is detachably disposed between the door lock housing and the door lock panel, and can supply power to the door lock panel when installed inside the door lock, enabling the door lock panel to realize multiple functions such as fingerprint recognition, password verification, and facial recognition. The door lock panel is also connected to the lock body, and can control the lock body to unlock when the password / fingerprint is successfully matched.

[0179] In this embodiment, when the battery module's charge level is below a first charge threshold, a low charge warning message can be output from the door lock panel. At this time, the user can choose to remove the battery module from the door lock housing and, by actuating the battery module's actuating part, cause the plug body to move under the action of a first elastic member, further exposing the plug pins from the housing. In this case, the battery module can be inserted into a charging socket that matches the plug pins for fast charging. After charging is complete, the plug pins can be retracted into the battery module, and the battery module can be placed back into the door lock housing.

[0180] In this embodiment of the disclosure, see Figure 7 , Figure 7 This is a schematic diagram of charging a battery module inside a door lock according to an exemplary embodiment. Here, the door lock housing has an opening that is aligned with the charging interface (such as a USB interface) of the battery module described above. If the battery module is in a low power state and there is a USB plug and charging cable that match the USB interface in the environment, the battery module can be charged by using a USB charging connection.

[0181] See Figure 8 , Figure 8This is a power supply schematic diagram of a door lock internal battery module according to an exemplary embodiment; here, the battery module proposed in this embodiment also has a reverse power supply function. When the terminal device's power is too low and the door lock internal battery module has sufficient power, the battery module also supports reverse power supply to the terminal device; wherein, the reverse power supply method can be through... Figure 7 The USB interface and USB plug shown provide reverse power.

[0182] The following example uses the aforementioned battery module as a lithium battery module to illustrate the charging example when the lithium battery module is applied to a door lock.

[0183] Since traditional door locks typically have lithium battery modules with Micro USB or Type-C interfaces, a charging cable with a USB plug can be plugged into the interface, and the terminal or power bank connected to the charging cable can power the door lock's lithium battery module. However, traditional charging solutions have the following problems: First, Type-C ports all support the same charging standard and power, and some lithium battery modules may only support lower power charging. This may result in slow charging speeds or insufficient power to the lithium battery module, indicating significant compatibility issues. Second, some lithium battery modules support lower power charging, and the Micro USB or Type-C interface may not be able to provide sufficient current and voltage for fast charging, resulting in slower-than-expected charging speeds.

[0184] Based on this, this disclosure proposes a lithium battery module with a plug structure, wherein the plug structure has two plug pins; wherein, the two pins of the 2-pin plug structure are made of pure copper to ensure good conductivity. In addition, the diameter and length of the pins ensure both a stable plug-in connection and the ability to carry a suitable current.

[0185] The lithium battery module can be detachably installed inside the door lock. When it is removed from the door lock, it is connected to the socket through a 2-pin plug structure to charge the lithium battery module.

[0186] Here, the 2-pin plug structure can move within the battery module, with the plug body moving between a first movable position and a second movable position, allowing both pins to be completely retracted into the lithium battery casing when not in use (e.g., Figure 5 As shown), it forms a compact unit with the battery. When charging is required, the user can control two pins exposed outside the battery casing via the actuating part (as shown). Figure 2(As shown). Thus, compared to traditional charging methods, when charging with the battery module's built-in 2-pin plug, users don't need to spend time searching for charging points or aligning complex charging connectors. Whether day or night, users can quickly establish an electrical connection between the pin and the designated socket, saving charging preparation time and making smart lock charging more universal; as long as the charging device is equipped with a matching socket, it can charge the smart lock, and users don't need to worry about being unable to charge due to a lost or damaged charger.

[0187] The aforementioned lithium battery module also includes a slide rail, a first elastic element, a second elastic element, a limiting structure, and a fixing element. The plug body serves as the carrier for the two pins. The slide rail is installed inside the battery casing, providing a movement path for the plug body and guiding it to move between a first and a second movable position. The first elastic element connects the fixing element and the plug body, providing elastic force. The second elastic element connects the fixing element and the actuating part, also providing elastic force. The limiting structure limits the plug body, thereby limiting the plug pins.

[0188] Thus, this embodiment of the disclosure provides a 2-pin plug structure that can move within the battery casing, enabling a thinner battery module and facilitating a compact door lock design. Furthermore, the reversible insertion capability of the 2-pin plug structure significantly improves the user experience, allowing users to easily charge without worrying about the plug orientation and mitigating the problem of damaging the battery charging port when plugged in incorrectly. In addition, the 2-pin plug structure supports high-power charging and fast data transmission, providing not only more efficient charging speeds for the battery module but also excellent compatibility. Users do not need to prepare additional charging cables with different plug types, alleviating the need for multiple charging cables for different products. Moreover, in terms of safety, the reversible design of the 2-pin plug structure reduces accidental operation during charging, enhancing safety. Simultaneously, the multi-point contact design of the 2-pin plug structure improves charging stability, effectively reducing charging interruptions and achieving a more reliable charging experience.

[0189] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0190] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A battery module of a door lock, characterized by, The battery module comprises: an electric core; a plug structure spaced apart from the electric core and comprising a plug pin; wherein the plug pin is electrically connected to the electric core, used for connecting a charging socket when the battery module is detached from the door lock, and charging the electric core.

2. The battery module of claim 1, wherein, The plug structure further comprises a plug body; the plug pin is fixedly connected to the plug body; wherein the plug body is movably arranged in the battery module, used for moving the plug pin.

3. The battery module of claim 2, wherein, The battery module further comprises: a slide rail spaced apart from the electric core; wherein the plug body is movably arranged on the slide rail.

4. The battery module of claim 2, wherein, The battery module further comprises: a battery shell, the plug structure and the electric core being located in the battery shell; at least one limiting structure arranged in the battery shell; wherein when the plug body is limitedly matched with different limiting parts of the same limiting structure, the plug pin is respectively limited outside and inside the battery shell; or when the plug body is respectively limitedly matched with different limiting structures, the plug pin is respectively limited outside and inside the battery shell; the plug pin is used for matching and connecting with the socket of the charging socket when being limited outside the battery shell.

5. The battery module of claim 4, wherein, The plug body has a first end part connected to the plug pin and a second end part away from the first end part; the limiting structure comprises a movable limiting structure, the movable limiting structure having a first limiting part and a second limiting part; wherein when the movable limiting structure is moved to a preset limiting position, the plug pin is limited inside the battery shell by the first limiting part and the first end part, or the plug pin is limited outside the battery shell by the second limiting part and the second end part; when the movable limiting structure is moved to a non-pre-set limiting position, the plug body can be moved in the battery shell.

6. The battery module of claim 5, wherein, The battery module further comprises: a fixing member fixedly arranged in the battery shell and located on a side of the plug body away from the plug pin; a first elastic member located between the fixing member and the plug body, one end of which is connected to the fixing member and the other end of which is connected to the plug body; wherein the first elastic member is in a deformed state when the first limiting part is limitedly matched with the first end part; and the first elastic member restores the elastic deformation when the movable limiting structure is moved to the non-pre-set limiting position, so as to move the plug body.

7. The battery module of claim 5, wherein, The battery module further comprises: an acting part arranged in the battery shell and capable of moving into the battery shell; the acting part is fixedly connected to the movable limiting structure; wherein when the acting part moves into the battery shell, the movable limiting structure is moved away from the preset limiting position; and when the acting part moves out of the battery shell, the movable limiting structure is moved close to the preset limiting position.

8. The battery module of claim 7, wherein, The battery module further comprises: a second elastic member located in the battery shell, one end of which is connected to the acting part and the other end of which is connected to the fixing member of the battery module. The second elastic member is used for deforming when the action part moves into the battery shell under external force, and restoring the deformation to drive the action part to move out of the battery shell when the external force is removed.

9. The battery module of any one of claims 5 to 8, wherein, The first limiting part is a limiting groove, and the second limiting part is a limiting inclined surface.

10. The battery module of any one of claims 5 to 8, wherein, The movable limiting structure includes two; The two movable limiting structures are symmetrically distributed along the movable direction of the plug body.

11. The battery module of any one of claims 2 to 8, wherein, The plug pin includes at least two; The at least two plug pins are arranged at different positions of the plug body.

12. The battery module of claim 11, wherein, The plug pin includes two.

13. A door lock characterized by It comprises: A door lock shell; A door lock panel arranged on the door lock shell; The battery module as claimed in any one of claims 1 to 12 is detachably arranged on the door lock shell; When the battery module is assembled on the door lock shell and located between the door lock panel and the door lock shell, the battery module is electrically connected with the door lock panel and supplies power to the door lock panel.

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