A novel battery connector assembly

Abstract

A novel battery connector assembly includes a male connector and a female connector. The male connector includes a male housing with a conductor inside. A bolt passes through the conductor, and the nut end of the bolt is restricted from axial movement. The bolt end extends to the plug end, where a current bridge is fixedly fitted around the bolt and electrically connected to the conductor. The female connector includes a female housing with a conductor inside. A nut is welded to the conductor, with one end extending to the plug end. A current bridge is fixedly fitted around the nut and electrically connected to the conductor. The male plug end has a positioning protrusion and a locking groove on its base peripheral wall. The female plug end has a positioning groove at its end and a locking groove on its outer periphery. The positioning protrusion matches the groove, and locking grooves one and two form an annular groove that can be engaged with the annular groove. This novel battery connector assembly provides precise positioning, reliable connection, stable conductivity, and safe insulation.

Description

Technical Field

[0001] This utility model relates to the field of battery connector technology, and in particular to a novel battery connector assembly. Background Technology

[0002] With the rapid development of new energy technologies, battery systems, as the core energy carriers, face critical technological bottlenecks in terms of safety, reliability, and connection efficiency. Battery connectors, as the core components enabling electrical connections within battery systems, must meet high-current transmission requirements while also ensuring mechanical connection stability, vibration resistance, and insulation protection. Traditional battery connectors have revealed numerous problems that urgently need to be addressed in practical applications.

[0003] From a mechanical connection perspective, traditional connectors mostly employ single snap-fit ​​or threaded connections. Single snap-fit ​​connections are prone to loosening under vibration, leading to poor contact or even detachment, affecting the stability of the battery system. While simple threaded connections provide strong connection force, the installation and disassembly process is cumbersome, time-consuming, and labor-intensive, making it difficult to meet the needs of rapid assembly and maintenance of battery systems. Furthermore, the positioning structure design of traditional connectors is not precise enough; circumferential misalignment can easily occur when the male and female ends are connected, affecting conductivity and potentially causing wear and tear on components due to uneven stress, thus shortening the connector's lifespan.

[0004] In terms of conductivity, traditional connectors have significant design flaws in their conductive structure. Most employ direct contact conductivity, resulting in a small contact area and high contact resistance. This easily generates substantial heat when transmitting high currents, leading to energy loss and even overheating risks, threatening the safety of the battery system. Furthermore, after prolonged use, conductive components are prone to oxidation and corrosion, causing a decline in contact performance and further impacting the connector's reliability.

[0005] In terms of insulation protection, the insulation design of traditional connectors is inadequate. Insulating components often employ simple covering methods, and over long-term use, the insulating material may lose its insulating properties due to aging and wear, leading to leakage accidents. Especially in critical areas such as bolts and nuts, the lack of effective insulation protection measures makes them susceptible to short-circuit faults due to accidental contact, seriously threatening battery systems and personnel safety.

[0006] With the increasing demands on battery performance from new energy vehicles, energy storage systems, and other fields, traditional battery connectors are struggling to meet the growing technological requirements. The market urgently needs a new type of battery connector assembly capable of precise positioning, reliable connection, stable conductivity, and efficient insulation protection. Based on this background, this invention addresses the problems of unstable mechanical connections, poor conductivity, and insufficient insulation protection inherent in traditional connectors, proposing a novel battery connector assembly design to improve the overall performance and safety of battery systems. Utility Model Content

[0007] To overcome the shortcomings of the prior art, the present invention aims to provide a novel battery connector assembly.

[0008] To achieve the above and other related objectives, the technical solution provided by this utility model is: a novel battery connector assembly, comprising: A male connector includes a male housing, a conductor in the male housing, a through hole in the conductor, a bolt passing through the through hole, the nut end of the bolt being restricted from axial movement by the male housing, the screw end of the bolt extending into the insertion end of the male housing, and a current bridge fixed in the insertion end of the male housing, the current bridge being fitted around the outer periphery of the bolt and electrically connected to the conductor. A female connector includes a female housing, a second conductor is provided in the female housing, a nut is welded on the second conductor, one end of the nut extends into the insertion end of the female housing, a second current bridge is fixed in the insertion end of the female housing, the second current bridge is sleeved on the outer periphery of the nut and electrically connected to the second conductor; The male connector has multiple sets of equidistantly arranged positioning protrusions on the peripheral wall of the base of the insertion end, and a first locking groove on the outer periphery of the positioning protrusions. The female connector has multiple sets of equidistantly arranged positioning grooves on the end of the insertion end, and a second locking groove on the outer periphery of the insertion end. The positioning protrusions and the positioning grooves are correspondingly matched and matched. The first locking groove and the second locking groove are correspondingly matched to form an annular groove. It also includes a ring buckle, which is configured to be able to be fastened in the annular groove.

[0009] The preferred technical solution is as follows: the male end housing is composed of a main housing and a secondary housing, the secondary housing is configured as a cylindrical structure and fastened to the main housing, the conductor is inserted into the main housing, and the nut end of the bolt is located in the secondary housing.

[0010] The preferred technical solution is that the nut end of the bolt is injection molded and covered with an insulating cap, and the outer diameter of the insulating cap is larger than the inner diameter of the flange at the top of the sub-shell.

[0011] A preferred technical solution is that the bolt's screw end is injection molded with an insulating rod, and the outer diameter of the insulating rod is smaller than the inner diameter of the nut.

[0012] A preferred technical solution is that the top of the nut is injection molded with an insulating ring, and the inner diameter of the insulating ring is the same as the inner diameter of the nut.

[0013] The preferred technical solution is as follows: the current bridge is configured as a contact sleeve and sleeved on the outside of the screw end of the bolt, the top of the current bridge extends into the sleeve to form a contact ring, and the top side of the contact ring is attached to the conductor and electrically connected to the conductor.

[0014] The preferred technical solution is as follows: the second current bridge is configured as a contact sleeve and sleeved on the outside of the nut, the bottom of the second current bridge extends outward to form a second contact ring, and the bottom side of the second contact ring is attached to the second conductor and electrically connected to the second conductor.

[0015] A preferred technical solution is that, when the male connector and the female connector are connected, the bottom end of the first current bridge and the top end of the second current bridge are electrically connected in contact with each other.

[0016] Due to the application of the above technical solution, the beneficial effects of this utility model are as follows: This utility model provides a novel battery connector assembly that effectively solves the problems of unstable mechanical connection, poor conductivity, and insufficient insulation protection of traditional battery connectors through precise positioning structure, reliable mechanical connection method, efficient conductive design, and comprehensive insulation protection measures. It significantly improves the overall performance and safety of battery connectors and is suitable for fields with high requirements for battery connection, such as new energy vehicles and energy storage systems. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connector assembly structure involved in this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of the connector assembly involved in this utility model.

[0019] Figure 3 This is a schematic diagram of the male end shell structure involved in this utility model.

[0020] Figure 4 This is a schematic diagram of the female end shell structure involved in this utility model. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0022] Please see Figures 1-4It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component 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. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0024] Example: like Figures 1 to 4 As shown, according to an overall technical concept of this utility model, a male connector is provided, including a male housing 1, a conductor 2 in the male housing 1, a through hole in the conductor 2, a bolt 3 passing through the through hole, the nut end of the bolt 3 being restricted to move axially by the male housing 2, the screw end of the bolt 3 extending into the insertion end of the male housing 1, and a current bridge 4 fixed in the insertion end of the male housing 1, the current bridge 4 being sleeved on the outer periphery of the bolt 3 and electrically connected to the conductor 2.

[0025] The male end housing 1 consists of a main housing 11 and a secondary housing 12. The secondary housing 12 is a cylindrical structure and is fastened to the main housing 11. The conductor 2 is inserted into the main housing 11, and the nut end of the bolt 3 is located in the secondary housing 12. This structure is easy to assemble and maintain through a split design. At the same time, the limiting of the nut end of the bolt 3 by the secondary housing 12 can ensure the stability of the axial movement of the bolt 3 and avoid the connection reliability being affected by loosening. like Figures 1 to 4As shown, in an exemplary embodiment of this utility model, the nut end of the bolt 3 is injection molded and covered with an insulating cap 31, and the outer diameter of the insulating cap 31 is larger than the inner diameter of the flange at the top of the sub-shell 12. The insulating cap 31 can effectively prevent accidental leakage at the nut end. The design of the outer diameter being larger than the inner diameter of the flange is used to limit the bolt 3 by the sub-shell 12. The screw end of the bolt 3 is injection molded and covered with an insulating rod 32, and the outer diameter of the insulating rod 32 is smaller than the inner diameter of the nut 7. The insulating rod 32 can prevent accidental contact with the current bridge 4. The design of the outer diameter being smaller than the inner diameter of the nut is to reserve space for the threaded connection between the bolt 3 and the nut 7, ensuring the dual realization of mechanical connection and conductive function.

[0026] The female connector includes a female housing 5, a conductor 6 in the female housing 5, a nut 7 welded on the conductor 6, one end of the nut 7 extending into the insertion end of the female housing 5, and a current bridge 8 fixed in the insertion end of the female housing 5, the current bridge 8 being sleeved on the outer periphery of the nut 7 and electrically connected to the conductor 6.

[0027] Among them, the top of the nut 7 is injection molded with an insulating ring 71. The inner diameter of the insulating ring 71 is the same as the inner diameter of the nut 7. The insulating ring 71 can prevent the nut 7 from being accidentally touched. The design that the inner diameter is the same as the nut 7 does not affect the threaded connection between the nut 7 and the bolt 3, ensuring the smoothness of the conductive path. like Figures 1 to 4 As shown, in an exemplary embodiment of this utility model, the current bridge 4 is configured as a contact sleeve fitted on the outside of the bolt 3 screw end, with the top extending into the sleeve to form a contact ring 41. The top side of the contact ring 41 is attached to the conductor 2 and electrically connected to the conductor 2. The current bridge 8 is configured as a contact sleeve fitted on the outside of the nut 7, with the bottom extending outward to form a contact ring 81. The bottom side of the contact ring 81 is attached to the conductor 6 and electrically connected to the conductor 6. This design of the contact sleeve and contact ring can increase the conductive contact area, reduce the contact resistance, improve the stability and efficiency of current transmission, and reduce energy loss and heat generation problems.

[0028] like Figures 1 to 4As shown in an exemplary embodiment of this utility model, the male connector has multiple sets of equidistantly arranged positioning protrusions 111 on the peripheral wall of the base of the insertion end, and a first locking groove 112 on the outer periphery of the positioning protrusions 111. The female connector has multiple sets of equidistantly arranged positioning grooves 51 on the end of the insertion end, and a second locking groove 52 on the outer periphery of the insertion end. The positioning protrusions 111 and the positioning grooves 51 are correspondingly matched, and the first locking groove 112 and the second locking groove 52 are correspondingly matched to form an annular groove, and the ring buckle 9 can be fastened in the annular groove. The equidistant matching design of the positioning protrusions 111 and the positioning grooves 51 can achieve precise circumferential positioning of the male and female ends, avoid misalignment problems during connection, and improve the accuracy and reliability of the connection. The annular groove formed by the first locking groove 112 and the second locking groove 52, together with the fastening structure of the ring buckle 9, can provide a strong radial locking force, enhance the stability of the mechanical connection, effectively resist the influence of external environment such as vibration, and prevent the connector from loosening and falling off.

[0029] like Figures 1 to 4 As shown, in an exemplary embodiment of this utility model, when the male connector and the female connector are in a connected state, the bottom end of current bridge 4 and the top end of current bridge 8 are electrically connected to each other, forming a continuous conductive path, ensuring the continuity and stability of current transmission. At the same time, the rigid contact design of the current bridge can further improve the reliability of conductive contact and reduce the risk of failure due to poor contact.

[0030] In addition, it should be noted that the battery connector assembly involved in this application meets the IPXXB protection level, which can prevent accidental situations caused by fingers accidentally entering the electrical gap.

[0031] In summary, this utility model effectively solves the problems of unstable mechanical connection, poor conductivity, and insufficient insulation protection of traditional battery connectors through precise positioning structure, reliable mechanical connection method, efficient conductive design, and comprehensive insulation protection measures. It significantly improves the overall performance and safety of battery connectors and is suitable for fields with high requirements for battery connection, such as new energy vehicles and energy storage systems.

[0032] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A novel battery connector assembly, comprising: A male connector includes a male housing, a conductor in the male housing, a through hole in the conductor, a bolt passing through the through hole, the nut end of the bolt being restricted from axial movement by the male housing, the screw end of the bolt extending into the insertion end of the male housing, and a current bridge fixed in the insertion end of the male housing, the current bridge being fitted around the outer periphery of the bolt and electrically connected to the conductor. A female connector includes a female housing, a second conductor is provided in the female housing, a nut is welded on the second conductor, one end of the nut extends into the insertion end of the female housing, a second current bridge is fixed in the insertion end of the female housing, the second current bridge is sleeved on the outer periphery of the nut and electrically connected to the second conductor; The male connector is characterized by having multiple sets of equidistantly arranged positioning protrusions on the peripheral wall of its insertion end base, with a first retaining groove on the outer periphery of each positioning protrusion; the female connector has multiple sets of equidistantly arranged positioning grooves on the end of its insertion end, with a second retaining groove on the outer periphery of each insertion end; the positioning protrusions and the positioning grooves are correspondingly matched; the first retaining groove and the second retaining groove are correspondingly matched to form an annular groove; and the connector also includes a retaining ring configured to engage with the annular groove.

2. The battery connector assembly according to claim 1, characterized in that: The male end housing consists of a main housing and a secondary housing. The secondary housing is a cylindrical structure and is fastened to the main housing. The conductor is inserted into the main housing, and the nut end of the bolt is located in the secondary housing.

3. A battery connector assembly according to claim 2, characterized in that: The nut end of the bolt is injection molded and covered with an insulating cap, the outer diameter of which is larger than the inner diameter of the flange at the top of the sub-shell.

4. A battery connector assembly according to claim 1, characterized in that: The bolt's screw end is injection-molded with an insulating rod, the outer diameter of which is smaller than the inner diameter of the nut.

5. A battery connector assembly according to claim 1, characterized in that: The top of the nut is injection molded with an insulating ring, the inner diameter of which is the same as the inner diameter of the nut.

6. A battery connector assembly according to claim 1, characterized in that: The current bridge is configured as a contact sleeve and sleeved on the outside of the screw end of the bolt. The top of the current bridge extends into the sleeve to form a contact ring. The top side of the contact ring is attached to the conductor and electrically connected to the conductor.

7. A battery connector assembly according to claim 1, characterized in that: The second current bridge is configured as a contact sleeve and sleeved on the outside of the nut. The bottom of the second current bridge extends outward to form a second contact ring. The bottom side of the second contact ring is attached to the second conductor and electrically connected to the second conductor.

8. A battery connector assembly according to claim 1, characterized in that: When the male connector and the female connector are connected, the bottom end of the first current bridge and the top end of the second current bridge are electrically connected and come into contact with each other.

Images