Conductive plugging connection assembly
By designing conductive plug-in connection components and using structures such as conductive spring pieces and guide grooves, the problem of existing electrical connectors being difficult to balance small size and large overcurrent capacity is solved, achieving miniaturization design and high-power current load performance.
Patent Information
- Application Number
- CN202420939745.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing small-size electrical connectors are mainly based on data transmission functions, and it is difficult to take into account the small-size and large overcurrent capabilities, and cannot meet the high power and current requirements of RC model lithium-ion batteries.
A conductive interpolation connection component is designed, including the first electrical connector and the second electrical connector. By setting the conductive terminal in the insulated case, the conductive shoton and guide slots are used to achieve high -efficiency connections of conductive interpolations.
While achieving a miniaturized design, it also improves the overcurrent capacity and service life of the lithium-ion battery, allowing it to withstand greater power and current demands.
Smart Images
Figure CN222395076U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of circuit connection devices, in particular to a conductive plug connection component. Background Art
[0002] In the field of RC models, lithium-ion batteries are an important part of their power system, providing continuous and stable power output for the model. In order to facilitate use and charging, lithium-ion batteries are usually equipped with connecting wires. When charging, the battery is removed from the RC model and conductively connected to the electrical connector on the charger through the electrical connector on the connecting wire.
[0003] Electrical connectors are a type of electronic components. They come in a variety of types and play an indispensable role in various electrical and electronic systems. However, in a specific application, a specific design is required. In the field of RC models, the models themselves, batteries, and chargers all have a trend towards miniaturization and portability. The size of the charger needs to be made smaller. In addition to the smaller circuit boards, housings, and operating panels, the transmission electrical connectors also need to be designed smaller. At the same time, it is understandable that the lithium-ion batteries of RC models often need to have larger power and current to meet the needs of use.
[0004] It can be seen that small-sized electrical connectors on the market are mainly used for data transmission functions, while electrical connectors with large current capacity are usually larger in size. It is difficult for electrical connectors to have both small size and large current capacity. Utility Model Content
[0005] In order to solve the problems existing in the prior art, the main purpose of the utility model is to provide a conductive plug connection component that can achieve both small size and large current capacity, improve the current capacity and service life of lithium-ion battery plugs, and make batteries, charging equipment, and battery equipment more miniaturized.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A conductive plug connection assembly comprises a first electrical connector and a second electrical connector which can be plugged and conductively connected to each other.
[0008] The first electrical connector includes a female insulating housing and a male conductive terminal disposed in the female insulating housing; the second electrical connector includes a male insulating housing and a female conductive terminal disposed in the male insulating housing;
[0009] The front end of the female insulating shell is provided with a first socket extending inwardly, the first socket is plugged and matched with the male insulating shell, and the male insulating shell can be integrally inserted into the first socket.
[0010] The front end of the female conductive terminal is provided with a second connecting hole extending inwardly, and the second connecting hole is plugged into and matched with the male conductive terminal. At least two circumferentially distributed conductive spring sheets are provided in the second connecting hole, and each of the conductive spring sheets elastically protrudes toward the central axis.
[0011] Optionally, a guide groove extending along the plugging direction is provided on the positive insulating shell, and a guide ridge extending along the plugging direction is provided in the first plugging hole of the negative insulating shell, and the guide groove and the guide ridge cooperate with each other for plugging.
[0012] Furthermore, the cross-sectional shape of the guide groove is a trapezoid, and the cross-sectional shape of the guide ridge is also a trapezoid.
[0013] Furthermore, the cross-sectional shape of the negative insulating shell and the positive insulating shell is a rectangular shape with two chamfers on one long side.
[0014] Furthermore, guide grooves are provided on both sides of the long sides of the male insulating shell, and guide convex strips are provided on both sides of the inner long sides of the first connecting hole of the female insulating shell.
[0015] Optionally, the male conductive terminal extends a first welding wire end toward the rear end of the female insulating housing, and the first welding wire end is provided with a first welding wire groove; or, the male conductive terminal extends a right-angle pin end toward the rear end of the female insulating housing;
[0016] The female conductive terminal extends a second welding wire end toward the rear end of the male insulating housing, and the second welding wire end is provided with a second welding wire groove.
[0017] Furthermore, the first electrical connector is configured with two male conductive terminals, and the second electrical connector is configured with two female conductive terminals; the first welding wire grooves of the two male conductive terminals are opposite to each other, and the second welding wire grooves of the two female conductive terminals are opposite to each other.
[0018] Optionally, the male conductive terminal is integrally connected to the female insulating housing by injection molding, and the female conductive terminal is integrally connected to the male insulating housing by injection molding.
[0019] Further, the male conductive terminal is provided with a first injection molding ring groove, the first injection molding ring groove is eccentrically provided with a first positioning groove surface, and the male conductive terminal is integrally injection-molded and connected with the female insulating housing through the first injection molding ring groove; and / or,
[0020] The female conductive terminal is provided with a second injection molding ring groove, and the second injection molding ring groove is eccentrically provided with a second positioning groove surface. The female conductive terminal is integrally injection-molded and connected with the male insulating housing through the second injection molding ring groove.
[0021] Optionally, an annular convex strip is provided on the outer side wall of the negative insulating shell.
[0022] Compared with the prior art, the utility model has the following beneficial effects:
[0023] In the conductive plug connection assembly of the utility model, the first electrical connector is configured as a negative insulating shell with a built-in positive conductive terminal, and the second electrical connector is configured as a positive insulating shell with a built-in negative conductive terminal. After the positive insulating shell is plugged into the negative insulating shell, the positive conductive terminal is also correspondingly plugged into the negative conductive terminal, and the positive insulating shell can be inserted into the negative insulating shell as a whole, thereby reducing the volume of the positive insulating shell. At the same time, the negative conductive terminal is built-in with a conductive spring to ensure the conductive contact area and increase the current load performance, so that the battery assembly, charging equipment and battery equipment using the above-mentioned conductive plug connection assembly can be miniaturized and can bear greater power.
[0024] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 A schematic diagram of the three-dimensional structure of a conductive plug connection assembly according to an embodiment of the utility model;
[0026] Figure 2 A schematic diagram of a three-dimensional cross-sectional structure of a first electrical connector according to an embodiment of the utility model;
[0027] Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of a second electrical connector according to an embodiment of the utility model;
[0028] Figure 4 A schematic cross-sectional view of the conductive plug connection assembly according to an embodiment of the utility model when not plugged in;
[0029] Figure 5 A schematic cross-sectional view of the conductive plug connection assembly according to an embodiment of the utility model during plugging;
[0030] Figure 6 A schematic diagram of the three-dimensional structure of the conductive plug connection assembly after plugging according to an embodiment of the utility model.
[0031] Figure 7 A schematic three-dimensional structural diagram of a conductive plug connection assembly according to a second embodiment of the present invention.
[0032] Figure numerals: 10, first electrical connector; 11, female insulating shell; 111, annular convex strip; 12, first socket; 13, male conductive terminal; 14, guide convex strip; 15, first welding wire end; 16, first welding wire groove; 17, first injection molding ring groove; 18, first positioning groove surface; 19, right-angle pin end; 20, second electrical connector; 21, male insulating shell; 22, female conductive terminal; 23, second socket; 24, conductive spring sheet; 25, guide groove; 26, second welding wire end; 27, second welding wire groove; 28, second injection molding ring groove; 29, second positioning groove surface; 30, chamfer. DETAILED DESCRIPTION
[0033] In order to better illustrate the purpose, technical solution and advantages of the utility model, the specific implementation of the utility model is further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but are not intended to limit the scope of the utility model.
[0034] like Figures 1 to 6 As shown in FIG. 1 , a conductive plug connection assembly according to an embodiment of the utility model is shown. The conductive plug connection assembly comprises a first electrical connector 10 and a second electrical connector 20 which can be plugged and conductively connected to each other.
[0035] Regarding the first electrical connector 10, specifically, the first electrical connector 10 includes a female insulating housing 11 and a male conductive terminal 13. A first plug hole 12 extending inward is provided at the front end of the female insulating housing 11. Two male conductive terminals 13 are provided, one for corresponding to the positive and negative poles. The two male conductive terminals 13 are fixedly provided in parallel with each other in the first plug hole 12 of the female insulating housing 11.
[0036] Regarding the second electrical connector 20, specifically, the second electrical connector 20 includes a male insulating housing 21 and a female conductive terminal 22. The outer wall shape of the male insulating housing 21 is matched with the first plug hole 12 of the female insulating housing 11. The female conductive terminal 22 is also provided with two corresponding positive and negative poles. The two female conductive terminals 22 are fixedly arranged in parallel with each other in the male insulating housing 21. The front end of each female conductive terminal 22 is provided with a second plug hole 23 extending inwardly. The second plug hole 23 of the female conductive terminal 22 can cooperate to accommodate the male conductive terminal 13.
[0037] Specifically, at least two conductive springs 24 distributed along the circumferential direction are arranged in each female conductive terminal 22, and each conductive spring 24 elastically protrudes toward the central axis, so that the male conductive terminal 13 is inserted into the female conductive terminal 22, and each conductive spring 24 is tightly against the male conductive terminal 13. At the same time, it can be understood that the relative positions of the two male conductive terminals 13 and the two female conductive terminals 22 are also matched. The depth of the first plug hole 12 of the female insulating housing 11 is slightly greater than the length of the male insulating housing 21, so that the male insulating housing 21 can be inserted into the first plug hole 12 as a whole.
[0038] The working principle of the conductive plug connection assembly of this embodiment is that when the first electrical connector 10 is plugged into the second electrical connector 20, the male insulating housing 21 is plugged into the first plug hole 12 of the female insulating housing 11. At the same time, the male insulating housing 21 is placed in the first plug hole 12, and the two male conductive terminals 13 are plugged into the second plug holes 23 of the two female conductive terminals 22. The male conductive terminals 13 are wrapped by the conductive springs 24 in the second plug holes 23, thereby increasing the overcurrent performance.
[0039] It can be seen that the utility model can realize a battery assembly, a charging device, a battery device, etc. that adopts the above-mentioned conductive plug-in connection assembly, can be miniaturized in design, and can bear greater power.
[0040] In order to realize the design of multiple terminals, generally speaking, the cross-sectional shape of the first connector 12 of the female insulating housing 11 is a rectangle. Similarly, for the purpose of plug matching, the cross-sectional shape of the outer wall of the male insulating housing 21 is also a rectangle. In order to prevent the positive and negative poles from being reversed, the cross-sectional shape of the first connector 12 of the female insulating housing 11 is a rectangle with two chamfers 30 on one long side, while the chamfer 30 of the structure and size is not provided on the other long side. Similarly, the cross-sectional shape of the outer wall of the male insulating housing 21 is also the same. Therefore, when the first electrical connector 10 and the second electrical connector 20 are reversely connected, the long side with the chamfer 30 will abut against the long side without the chamfer 30, making it impossible to insert.
[0041] In order to improve the plugging effect of the female insulating housing 11 and the male insulating housing 21, in this embodiment, specifically, a guide groove 25 extending along the plugging direction is provided on the male insulating housing 21, and two guide grooves 25 are provided, respectively located in the middle of the long side. A guide ridge 14 extending along the plugging direction is provided in the first plug hole 12 of the female insulating housing 11, and two guide ridges 14 are also provided, respectively located in the middle of the long side. For the female insulating housing 11, the guide ridge 14 is a trapezoidal shape with a narrow bottom and a wide top. For the male insulating housing 21, the guide groove 25 is a trapezoidal shape with a narrow bottom and a wide top.
[0042] When the female insulating housing 11 and the male insulating housing 21 are plugged into each other, the two guide ridges 14 will be inserted into the two guide grooves 25 one by one. Since the cross-sectional shapes of the guide grooves 25 and the guide ridges 14 are trapezoidal, the contact friction will be increased, making the plugging of the conductive plug connection assembly more secure and not easy to loosen.
[0043] In order to optimize the plugging operation, an annular convex strip 111 (111) is provided on the outer side wall of the female insulating housing 11, thereby achieving an anti-slip effect.
[0044] In order to realize the arrangement of the male conductive terminal 13 in the female insulating housing 11 and the arrangement of the female conductive terminal 22 in the male insulating housing 21, in this embodiment, specifically, the male conductive terminal 13 is provided with a first injection molding annular groove 17, the first injection molding annular groove 17 is eccentrically provided with a first positioning groove surface 18, and the male conductive terminal 13 is integrally injection-molded and connected with the female insulating housing 11 through the first injection molding annular groove 17. The female conductive terminal 22 is provided with a second injection molding annular groove 28, the second injection molding annular groove 28 is eccentrically provided with a second positioning groove surface 29, and the female conductive terminal 22 is integrally injection-molded and connected with the male insulating housing 21 through the second injection molding annular groove 28. The arrangement of the first injection molding annular groove 17 and the second injection molding annular groove 28 can make the insulating housing embedded in the conductive terminal, so that the conductive terminal is more firmly fixed, and the size of the insulating housing required for fixing the conductive terminal is smaller. The arrangement of the first positioning groove surface 18 and the second positioning groove surface 29 can make the conductive terminal not easy to rotate relative to the position of the integral injection molding, avoid the falling off of the conductive terminal, and improve the service life.
[0045] In order to realize the connection between the first electrical connector 10 and the second electrical connector 20 and the electric wires respectively, in this embodiment, specifically, the male conductive terminal 13 extends a first welding wire end 15 to the rear end of the female insulating housing 11, and the first welding wire end 15 is provided with a first welding wire groove 16. The female conductive terminal 22 extends a second welding wire end 26 to the rear end of the male insulating housing 21, and the second welding wire end 26 is provided with a second welding wire groove 27. When in use, the electric wires will be welded in the first welding wire groove 16 and the second welding wire groove 27 respectively, so that the welding of the electric wires is more firm, which is convenient for plugging and unplugging the conductive plug connection assembly. Furthermore, the first welding wire grooves 16 of the two male conductive terminals 13 are opposite to each other, and the second welding wire grooves 27 of the two female conductive terminals 22 are opposite to each other, thereby increasing the space for welding the electric wires.
[0046] Embodiment 2
[0047] like Figure 7As shown, it is a conductive plug connection assembly according to the second embodiment of the utility model. The structure of the first electrical connector 10 and the second electrical connector 20 of this embodiment is basically the same as that of the above embodiment, except that the second electrical connector 20 is provided with a male insulating shell 21 and a female conductive terminal 22, and the female conductive terminal 22 is provided with a second welding wire end 26 extending therefrom, and the second welding wire end 26 is provided with a second welding wire groove 27. When in use, the second welding wire end 26 of the second electrical connector 20 is used to be electrically connected to the lithium-ion battery through a wire. The first electrical connector 10 is provided with a female insulating shell 11 and a male conductive terminal 13, and the male conductive terminal 13 is provided with a right-angle pin end 19 extending therefrom. When in use, the right-angle pin end 19 of the first electrical connector 10 is used to be provided on the circuit board of the charging device.
[0048] As can be seen from the second embodiment, the conductive plug connection assembly of the utility model can make the size of the electrical connector of the lithium-ion battery smaller, and the charging device can also be miniaturized and have a stronger current-carrying capacity.
[0049] The above embodiments mainly describe the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A conductive plug connection assembly, comprising a first electrical connector (10) and a second electrical connector (20) which can be plugged and conductively connected to each other, characterized in that: The first electrical connector (10) comprises a female insulating housing (11) and a male conductive terminal (13) disposed inside the female insulating housing (11); the second electrical connector (20) comprises a male insulating housing (21) and a female conductive terminal (22) disposed inside the male insulating housing (21); The front end of the female insulating shell (11) is provided with a first plug hole (12) extending inwardly, the first plug hole (12) is plug-matched with the male insulating shell (21), and the male insulating shell (21) can be integrally inserted into the first plug hole (12). The front end of the female conductive terminal (22) is provided with a second connecting hole (23) extending inwardly, the second connecting hole (23) is plugged into and matched with the male conductive terminal (13), and at least two conductive spring sheets (24) distributed along the circumferential direction are provided in the second connecting hole (23), and each of the conductive spring sheets (24) elastically protrudes toward the central axis.
2. A conductive plug connection assembly according to claim 1, characterized in that: The male insulating shell (21) is provided with a guide groove (25) extending along the plugging direction, and the first plugging hole (12) of the female insulating shell (11) is provided with a guide ridge (14) extending along the plugging direction, and the guide groove (25) and the guide ridge (14) are matched with each other for plugging.
3. A conductive plug connection assembly according to claim 2, characterized in that: The cross-sectional shape of the guide groove (25) is a trapezoid, and the cross-sectional shape of the guide ridge (14) is also a trapezoid.
4. A conductive plug connection assembly according to claim 3, characterized in that: The cross-sectional shape of the negative insulating housing (11) and the positive insulating housing (21) is a rectangular shape with two chamfers (30) provided on one long side.
5. A conductive plug connection assembly according to claim 4, characterized in that: The male insulating shell (21) is provided with guide grooves (25) on both sides of the long side, and the female insulating shell (11) is provided with guide convex strips (14) on both sides of the long side of the first connecting hole (12).
6. A conductive plug connection assembly according to claim 1, characterized in that: The male conductive terminal (13) extends a first welding wire end (15) toward the rear end of the female insulating housing (11), and the first welding wire end (15) is provided with a first welding wire groove (16); or, the male conductive terminal (13) extends a right-angle pin end (19) toward the rear end of the female insulating housing (11); The female conductive terminal (22) extends a second welding wire end (26) toward the rear end of the male insulating housing (21), and the second welding wire end (26) is provided with a second welding wire groove (27).
7. A conductive plug connection assembly according to claim 5, characterized in that: The first electrical connector (10) is configured with two positive conductive terminals (13), and the second electrical connector (20) is configured with two negative conductive terminals (22); the first welding wire grooves (16) of the two positive conductive terminals (13) are opposite to each other, and the second welding wire grooves (27) of the two negative conductive terminals (22) are opposite to each other.
8. The conductive plug connection assembly according to claim 1, characterized in that: The male conductive terminal (13) is integrally connected to the female insulating housing (11) by injection molding, and the female conductive terminal (22) is integrally connected to the male insulating housing (21) by injection molding.
9. A conductive plug connection assembly according to claim 7, characterized in that: The male conductive terminal (13) is provided with a first injection molding annular groove (17), the first injection molding annular groove (17) is eccentrically provided with a first positioning groove surface (18), and the male conductive terminal (13) is integrally injection-molded and connected with the female insulating housing (11) via the first injection molding annular groove (17); and / or, The female conductive terminal (22) is provided with a second injection molding annular groove (28), the second injection molding annular groove (28) is eccentrically provided with a second positioning groove surface (29), and the female conductive terminal (22) is integrally injection-molded and connected to the male insulating housing (21) via the second injection molding annular groove (28).
10. The conductive plug connection assembly according to claim 1, characterized in that: An annular convex strip (111) is provided on the outer side wall of the negative insulating shell (11).