Lithium battery socket and plugging device

Abstract

The utility model relates to the field of connectors, and discloses a lithium battery socket and a plugging device. The lithium battery socket comprises a socket shell, an electric power plugging assembly and a distraction piece. A first jack is formed in the jack shell, a plug power pin is inserted into the first jack, the power plugging assembly is plugged in the socket shell, and the power plugging assembly comprises a power positive pole pin and a power negative pole plug connector. The power negative electrode plug connector comprises a clamping part, the clamping part faces the opening of the first jack, and an opening piece is arranged on at least one side of the clamping part in the opening direction of the clamping part, so that the opening of the clamping part can be expanded by the opening piece, and the plug can be inserted and pulled out more smoothly without damaging the plug and the lithium battery socket. When the plug and the lithium battery socket are plugged in each other, the situation that the socket shell is damaged due to deflection of the power contact pin of the plug caused by too small opening of the clamping part is avoided.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and more particularly to a lithium battery socket and a plug-in device. Background Technology

[0002] The 2+4 new national standard plug consists of two power pins and four communication pins. This design ensures the safety and compatibility of electric bicycle chargers. Specifically, the lithium-ion battery plug uses a 2+4 configuration (two power pins and four communication pins). This design prevents misuse and ensures correct communication between the charger and the battery pack, thus avoiding safety hazards caused by incompatibility.

[0003] Currently, some lithium battery sockets have guide edges at the contact point between the socket and the plug. However, when the plug is inserted into the socket, the opening of the negative terminal connector clip inside the socket body is too small, causing the plug pins to collide with the sharp corner of the spring contact, which can easily damage the negative terminal connector and the pins.

[0004] Therefore, there is an urgent need for a lithium battery socket that can solve the problem of easy damage to the plug or the lithium battery socket when the plug is inserted, and achieve better matching and engagement between the negative terminal connector and the pin. Utility Model Content

[0005] The purpose of this utility model is to provide a lithium battery socket that can solve the problem of easy damage to the plug or lithium battery socket when the plug is inserted into the socket, and achieve better matching and engagement between the negative terminal connector and the pin.

[0006] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0007] A lithium battery socket for connecting to a plug, the plug including plug power pins, the lithium battery socket comprising:

[0008] A socket housing with a first socket opening for inserting the plug's power pins;

[0009] A power connector assembly is inserted into the socket housing, the power connector assembly including a positive power pin and a negative power connector;

[0010] The power negative plug includes a clamping part that opens toward the first plug, and the clamping part has the supporting member on at least one side along the opening direction.

[0011] As an alternative to the lithium battery socket, the clamping part is provided with the supporting member on both sides of its opening direction.

[0012] As an alternative to the lithium battery socket, the thickness of the support member is less than the thickness of the plug pin that mates with the negative terminal connector.

[0013] As an optional feature of this lithium battery socket, the support is made of plastic.

[0014] As an optional feature of the lithium battery socket, the lithium battery socket also includes a protective component disposed on the opposite side of the side where the first socket is located and sealed to the socket housing.

[0015] As an optional solution for the lithium battery socket, the protective component has a protrusion along the direction of the first socket, the protrusion being inserted into the socket housing and abutting against the negative power connector.

[0016] As an optional solution for the lithium battery socket, one of the protrusion and the negative terminal plug are recessed to form a recess, and the other is provided with a protrusion that engages with the recess, and the recess and the protrusion are engaged and connected.

[0017] As an optional solution for the lithium battery socket, the socket housing and the plug contact portion are provided with an inwardly inclined guide ramp.

[0018] As an optional feature of the lithium battery socket, the lithium battery socket also includes a communication jack assembly, which is inserted into the socket housing and is used to match the corresponding structure of the plug.

[0019] A plug-in device includes a plug and a lithium battery socket, the lithium battery socket being adapted to the plug, and the lithium battery socket and the plug being electrically connected.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model discloses a lithium battery socket. A first socket is provided on the socket housing for the insertion of a plug's power pins. A power connector assembly is inserted into the socket housing. The power connector assembly includes a positive power pin, a negative power connector, and a supporting member. The negative power connector includes a clamping portion facing the opening of the first socket. At least one side of the clamping portion along its opening direction has a supporting member, which expands the opening of the clamping portion, making the insertion and removal of the plug smoother and preventing damage to the plug and the lithium battery socket. When the plug and lithium battery socket are inserted, the plug's power pins will not be misaligned due to an insufficiently small opening in the clamping portion, thus preventing damage to the socket housing. Attached Figure Description

[0022] Figure 1 This is a first structural schematic diagram of the lithium battery socket provided in this embodiment of the utility model;

[0023] Figure 2This is a schematic diagram of the second structure of the lithium battery socket provided in this embodiment of the utility model;

[0024] Figure 3 This is a third structural schematic diagram of the lithium battery socket provided in this embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the fourth structure of the lithium battery socket provided in this embodiment of the utility model;

[0026] Figure 5 This is a fifth structural schematic diagram of the lithium battery socket provided in this embodiment of the utility model.

[0027] In the picture:

[0028] 1. Socket housing; 11. First socket; 12. Guide ramp;

[0029] 2. Power connector assembly; 21. Positive power pin; 22. Negative power connector; 221. Clamping part; 222. Recess;

[0030] 3. Spreading components;

[0031] 4. Protective components; 41. Protrusions; 42. Raised parts;

[0032] 5. Communication jack assembly; 51. Communication jack. Detailed Implementation

[0033] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] This embodiment provides a plug-in device that can be applied in transportation, industry, and energy sectors to assist in charging devices. In this embodiment, the plug-in device includes a lithium battery socket and a plug. The lithium battery socket and plug are compatible and electrically connected. After the power connection is established, current flows from the socket through power pins to the plug, and then to the device to be charged.

[0039] Preferably, in this embodiment, the lithium battery socket and the plug are connected by communication, and the battery management system of the device to be charged can interact with the power supply device. The power supply device can adjust the charging parameters according to the data obtained after the communication connection between the lithium battery socket and the plug, so as to achieve safe and intelligent charging.

[0040] Optionally, in this embodiment, the plug includes a plug housing, one power pin, one power socket, and four communication pins. The power pin, power socket, and four communication pins are all inserted into the plug housing. The power pin and power socket transmit the electricity required for charging and are generally made of copper with a special surface treatment to enhance conductivity and corrosion resistance. The four communication pins are used to transmit data signals such as battery status and charging parameters. The communication pins are typically thin and made of a material with good electrical properties to ensure stable signal transmission. The plug housing is made of high-strength, flame-retardant engineering plastic, which protects the internal pins and provides good insulation for safe use. In other embodiments, the plug's composition and the materials of its various structures can be any other form and material, as long as it can cooperate with the socket to charge the device.

[0041] Optionally, such as Figure 2 As shown, in this embodiment, the lithium battery socket includes a socket housing 1, a power connector assembly 2, and a communication jack assembly 5. The socket housing 1 has a first socket 11 for inserting the plug's power pins. The power connector assembly 2 and the communication jack assembly 5 are both inserted into the socket housing 1. The power connector assembly 2 includes a positive power pin 21 and a negative power connector 22. The positive power pin 21 is correspondingly disposed with the plug's power socket, and the negative power connector 22 is correspondingly disposed with the plug's power pin. The negative power connector 22 includes a clamping part 221, which can make tight contact with the plug's power pins to ensure stable current transmission.

[0042] Optionally, such as Figure 2 As shown, in this embodiment, the communication socket assembly 5 includes four communication sockets 51, which are adapted to four plug communication pins. A well-fitting pin and socket ensure tight contact, providing a stable and reliable channel for data transmission between the battery management system and the power supply component. A stable communication connection is crucial for intelligent charging; the charger can precisely adjust charging parameters based on the battery's real-time status, improving charging efficiency and extending battery life. The easy-to-insert design allows users to quickly and accurately connect the plug and socket without spending excessive effort aligning the pins and sockets, even in low light or rushed conditions.

[0043] Preferably, such as Figure 2As shown, in this embodiment, the communication jack assembly 5 is located at the lower part of the power connector assembly 2, with four communication jacks 51 arranged horizontally. The negative power connector 22 is located to the left of the positive power pin 21. The first socket 11 and the corresponding socket of the communication jack assembly 5 form an L-shaped foolproof structure. The structure on the plug corresponds to the corresponding structure on the lithium battery socket. The L-shaped structure serves as a unique visual identifier, allowing users to clearly identify the correct connection method of the plug and socket from a distance. Compared to traditional plugs and sockets without obvious markings, the L-shaped foolproof structure provides a more intuitive visual cue, reducing the time and effort users spend searching for the correct insertion direction. This aligns with the principles of visual perception and information acquisition in ergonomics, helping to improve operational efficiency and accuracy. Furthermore, its unique shape design ensures that the plug can only be inserted into the socket in a specific direction, preventing short circuits and equipment damage caused by incorrect insertion.

[0044] To reduce damage to the plug and lithium battery socket, such as Figures 1-2 As shown, in this embodiment, the lithium battery socket further includes a support member 3, which is connected to the inner wall of the socket housing 1. A clamping part 221 is located near the plug insertion port on the socket housing 1, facing the plug insertion port opening. The clamping part 221 has a support member 3 on at least one side along its opening direction. The support member 3 guides the plug insertion, keeping the opening of the clamping part 221 slightly open, making it easier to align and insert the plug into the socket. This reduces the difficulty of finding the correct position and angle during insertion. When the plug and lithium battery socket are inserted, the plug's power pins will not be misaligned due to the small opening of the clamping part 221, thus preventing damage to the socket housing 1 and improving insertion and removal efficiency. The support member 3 on at least one side of the clamping part 221 along its opening direction makes the plug insertion and removal process smoother, reducing friction and collision between the plug and the clamping part 221, thereby reducing wear on the plug and socket and extending their service life. Especially for plugs and sockets that are frequently plugged and unplugged, the protective function of the support member 3 can effectively reduce problems such as poor contact caused by wear. Without the support member 3, frequent plugging and unplugging or improper force may cause deformation of the clamping part 221, affecting the normal use of the socket. The support member 3 can distribute the force during plugging and unplugging to a certain extent, reducing the impact of external forces on the clamping part 221, thereby protecting the shape and structure of the clamping part 221, maintaining its good elasticity and conductivity, and ensuring the stable performance of the socket.

[0045] Optionally, in this embodiment, the support member 3 and the socket housing 1 are integrally formed, so that there are no obvious seams or connection points between the support member 3 and the socket housing 1, forming a continuous integral structure. This results in higher strength at the connection points, enabling it to withstand greater external forces and loads, and reducing the risk of the support member 3 detaching from the clamping part 221 due to loosening or breakage at the connection points. In other embodiments, the support member 3 and the socket housing 1 can be connected by a snap-on mechanism, as long as it ensures that the support member 3 can be stably inserted into the clamping part 221. In other embodiments, the expanding member 3 may not be connected to the inner wall of the socket housing 1, as long as the opening of the clamping part 221 remains open to facilitate easier insertion of the plug into the socket.

[0046] Preferably, such as Figures 1-2 As shown, in this embodiment, the clamping part 221 is provided with supporting members 3 on opposite sides along its opening direction. These supporting members 3 act as two support points, enhancing the overall structural strength and stability of the clamping part 221. When the plug is inserted or removed, they can better withstand and distribute the force, preventing deformation or damage to the clamping part 221 due to uneven force, and extending the service life of the socket connector. The supporting members 3 on both sides make the contact between the plug and the socket more uniform, and the current distribution more even, avoiding localized overheating caused by current concentration at a certain point or on one side. This not only protects the plug and socket from damage due to overheating but also reduces the risk of safety accidents such as fires caused by overheating. In other embodiments, the supporting member 3 can also be provided on one side, as long as it can open the clamping part 221 to ensure that the plug is more easily aligned and inserted into the socket.

[0047] Specifically, in this embodiment, the thickness of the expanding member 3 is less than the thickness of the plug's power pin that mates with the negative terminal connector 22. The thickness of the expanding member 3 allows the clamping part 221 to open appropriately, ensuring smooth insertion of the plug's power pin while maintaining close contact between the clamping part 221 and the plug's power pin. This increases the contact area, reduces contact resistance, lowers heat generation, improves power transmission efficiency, extends the lifespan of the lithium battery socket and plug, and prevents safety hazards caused by overheating. The appropriately thick expanding member 3 allows the clamping part 221 to maintain a reasonable degree of deformation during plug insertion and removal, preventing excessive expansion or compression that could cause elastic fatigue, deformation, or even damage to the clamping part 221, thus extending the socket's lifespan.

[0048] Optionally, in this embodiment, the support member 3 is made of plastic material. Plastic material typically has good insulation properties, effectively preventing current from being conducted from the clamping part 221 to the support member 3, avoiding leakage, and ensuring the user's personal safety and the normal operation of the charging process. Even in harsh environments such as humid conditions, as long as the plastic material remains intact, it can maintain a reliable insulation effect. Plastic material has good flexibility and elasticity. When the plug is inserted, the support member 3 can deform appropriately according to the shape and size of the plug, thereby better adapting to the plug insertion. Furthermore, it can quickly return to its original shape after the plug is removed, ensuring the reusability of the support member 3 and extending its service life. In other embodiments, the support member 3 can be made of rubber or silicone material, as long as it can adapt to plug insertion and removal.

[0049] Specifically, such as Figures 3-5 As shown, in this embodiment, the lithium battery socket also includes a protective component 4. The protective component 4 is disposed on the opposite side of the side where the first socket 11 is located and is sealed to the socket housing 1. When water splashes onto the socket, the protective component 4 will be the first to come into contact with the water. Due to its special position, after the water comes into contact with the protective component 4, it will change its original path of flowing directly to the first socket 11 and be forced to flow along the surface of the protective component 4, thus preventing it from directly entering the interior of the lithium battery socket. The protective component 4 is sealed to the socket housing 1, which forms a relatively closed spatial structure, making it difficult for water to enter the interior of the socket through the socket housing 1, thereby protecting the internal electronic components.

[0050] Optionally, in this embodiment, the protective component 4 is made of plastic material, which typically has good insulation properties and can effectively prevent electric shock accidents. In the lithium battery socket, the protective component 4 can isolate the live parts from the outside environment, preventing users from accidentally contacting live parts and ensuring personal safety. The plastic can achieve a good sealing connection with the socket housing 1, effectively preventing dust, moisture, etc. from entering the lithium battery socket, avoiding problems such as short circuits and poor contact caused by dust accumulation or moisture intrusion, and ensuring the stable and reliable performance of the socket. In other embodiments, the protective component 4 can be made of rubber or silicone material, as long as it can achieve a sealing connection with the socket housing 1.

[0051] Specifically, such as Figures 3-5As shown, in this embodiment, the protective member 4 has a protrusion 41 in the direction of the first socket 11. The protrusion 41 is inserted into the socket housing 1 and matches the negative power connector 22. Since the protrusion 41 is inserted into the socket housing 1 and matches the negative power connector 22, it may enhance the connection stability between the protective member 4 and the socket housing 1 to a certain extent, so that the protective member 4, on the basis of a sealed connection, further forms a tighter overall structure with the socket housing 1. Because the protrusion 41 can cooperate with the negative power connector 22, when the negative power connector 22 is subjected to a large external force and attempts to move backward, the protrusion 41, which matches it and is behind it, will block the backward movement of the negative power connector 22, thereby achieving the function of limiting the negative power connector 22.

[0052] Specifically, in this embodiment, of the cooperating protrusion 41 and the negative power connector 22, one is recessed to form a recess 222, and the other is provided with a protrusion 42 that engages with the recess 222. The recess 222 and the protrusion 42 are engaged, and the cooperation between the protrusion 42 and the recess 222 enables precise positioning of the protective component 4 and the negative power connector 22, ensuring accurate alignment during installation. This allows the protective component 4 to accurately limit the negative power connector 22, preventing it from shifting within the socket housing 1 and ensuring the stability and reliability of the entire socket structure. The engagement of the protrusion 42 into the recess 222 effectively increases the connection strength between the two, making the connection between the protective component 4 and the negative power connector 22 tighter and less prone to loosening. Thus, even if the socket is subjected to external impact or vibration during use, the negative power connector 22 can remain in a fixed position, reducing the possibility of electrical faults caused by loose connections.

[0053] Optionally, such as Figures 3-5 As shown, in this embodiment, a protrusion 42 is connected to the protrusion 41, and a recess 222 is provided on the negative power connector 22. The negative power connector 22 plays a crucial role in the circuit and typically requires higher stability and safety. By placing the recess 222 on the negative power connector 22, it can be better enclosed and positioned after engaging with the protrusion 42, reducing interference and damage from external factors and lowering the risk of circuit failure due to loosening or displacement of the negative power connector 22. In other embodiments, the recess 222 and the protrusion 42 can also be arranged in opposite directions, as long as they can resist external impacts on the negative power connector 22.

[0054] Preferably, such as Figures 1-5As shown, in this embodiment, the socket housing 1 has an inwardly inclined guide ramp 12 at the contact portion with the plug. The guide ramp 12 guides the plug to be accurately inserted into the lithium battery socket. The inclined design of the guide ramp 12 provides a guiding path for the plug, making it easier for the user to align the plug with the lithium battery socket when inserting it. Even in low light or when the user is not paying attention, the ramp can guide the plug to be inserted into the lithium battery socket more accurately, reducing multiple attempts and possible misinsertion due to alignment difficulties. Because the guide ramp 12 guides the plug to be accurately inserted, it avoids hard collisions between the plug and the lithium battery socket and incorrect insertion methods, thereby reducing wear between the plug and the lithium battery socket. This helps to extend the service life of the lithium battery socket and plug, reduces the probability of problems such as poor contact or damage caused by frequent plugging and unplugging, and improves the stability and reliability of the entire electrical connection system.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lithium electrical socket for plugging with a plug, the plug comprising plug power pins, characterized in that, The lithium battery socket comprises: a socket shell (1) having a first socket opening (11) for inserting a power pin of a plug; a power plug assembly (2) disposed in the socket shell (1), the power plug assembly (2) comprising a positive power pin (21) and a negative power plug (22); a spacer (3) disposed on at least one side of the negative power plug (22) along the opening direction of the negative power plug (22).

2. The lithium electrical outlet of claim 1, wherein, The spacer (3) is disposed on both sides of the negative power plug (22) along the opening direction of the negative power plug (22).

3. The lithium electrical outlet of claim 1, wherein, The thickness of the spacer (3) is less than the thickness of the power pin of the plug.

4. The lithium electrical outlet of claim 1, wherein, The spacer (3) is made of plastic material.

5. The lithium electrical outlet of any one of claims 1-4, wherein, The lithium battery socket further comprises a protective member (4) disposed on the opposite side of the side where the first socket opening (11) is disposed and sealingly connected with the socket shell (1).

6. The lithium electrical outlet of claim 5, wherein, The protective member (4) is provided with a protrusion (41) along the direction of the first socket opening (11), the protrusion (41) is disposed in the socket shell (1) and abuts against the negative power plug (22).

7. The lithium electrical outlet of claim 6, wherein, Among the protrusion (41) and the negative power plug (22), one is provided with a recess (222) and the other is provided with a protrusion (42) engaged with the recess (222), the recess (222) and the protrusion (42) are engagedly connected.

8. The lithium electrical outlet of any one of claims 1-4, wherein, The socket shell (1) and the plug contact part are provided with an inwardly inclined guide slope (12).

9. The lithium electrical outlet of any one of claims 1-4, wherein, The lithium battery socket further comprises a communication jack assembly (5) disposed in the socket shell (1) for matching with the corresponding structure of the plug.

10. A plug-in device, characterized in that The lithium battery socket and the plug are adapted to each other and electrically connected.

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