A high-power charging aluminum conductor connection device

Abstract

The present invention belongs to the technical field of automobile accessories, and discloses a high-power charging aluminum conductor connection device, including a plug housing, a socket assembly, a base and an aluminum conductor assembly, wherein the aluminum conductor assembly includes an aluminum bar, an aluminum conductor end cover and an aluminum bar sealing end cover, and the socket assembly includes a socket terminal, and a connection hole is provided at one end of the aluminum bar; a gasket is fixedly connected to the connection hole, a fixed cylinder is provided in the plug housing, a supporting spring is provided on the outer wall of the fixed cylinder, a rotating cylinder is rotatably connected in the fixed cylinder, a reset torsion spring is fixedly connected between the fixed cylinder and the rotating cylinder, a spring is fixedly connected to the outer wall of the rotating cylinder, a slider is fixedly connected to the inner wall of the rotating cylinder, an annular groove is provided at the front of the side wall of the socket terminal, and a slide groove for the slider to slide is provided at the socket terminal located in front of the annular groove, and the slider can rotate the rotating cylinder when sliding in the slide groove. The present invention has the effect of simple and stable connection between the socket terminal and the aluminum conductor.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to a high-power charging aluminum conductor connection device. Background Art

[0002] New energy vehicles represented by pure electric vehicles and plug-in hybrid vehicles are replacing traditional fuel vehicles. As market demand changes, the current-carrying requirements for connecting devices are getting higher and higher. In order to reduce costs and meet high current-carrying requirements, some solutions use flexible cable segments of cables to connect to rigid conductor segments (such as aluminum rods or aluminum bars, etc.). In the process of connecting the charging station and the connector with the cable, the rigid conductor segment can be pre-formed into an adaptive shape according to the installation space, which helps the rigid conductor segment to be bent and arranged in a space-constrained vehicle environment.

[0003] Referring to the Chinese patent application document with publication number CN116404463A, a new type of high-current metal busbar connector is disclosed, which includes a plug housing, an aluminum conductor assembly, a socket assembly and a plug assembly. The aluminum conductor assembly is inserted from the upper end of the plug housing and connected to the plug assembly embedded in the plug housing. The aluminum conductor assembly is connected to the upper end of the plug housing, and the plug assembly is connected to the socket assembly located on the side of the plug housing. This technical solution uses lightweight aluminum as the main conductor and has a flat conductor structure, which can facilitate assembly and disassembly.

[0004] With regard to the above-mentioned related technologies, the existing metal busbar connector generally fixes the aluminum busbar and the socket terminal by bolts, and the installation process is relatively complicated. In addition, during subsequent use, the bolts are prone to loosening due to vibration due to long-term use, which can easily cause the connection between the aluminum busbar and the socket terminal to loosen, reducing electrical stability. Summary of the invention

[0005] In view of this, the present invention provides a high-power charging aluminum conductor connection device, which aims to solve the problems of complicated installation process of the aluminum conductor and the socket terminal and loose connection between the aluminum conductor and the socket terminal.

[0006] In order to solve the above technical problems, the present invention provides a high-power charging aluminum conductor connection device, comprising a plug housing, a socket assembly connected to the plug housing, a base connected to the socket assembly, and an aluminum conductor assembly, wherein the aluminum conductor assembly comprises two aluminum bars, an aluminum conductor end cover, and an aluminum bar sealing end cover, and the socket assembly comprises a socket terminal, a connection hole is formed at one end of the aluminum bar, and the socket terminal is arranged through the connection hole;

[0007] A gasket is fixedly connected to the connecting hole, a fixed cylinder is provided in the plug housing, an outer wall of the fixed cylinder is provided with a supporting spring, a rotating cylinder is rotatably connected in the fixed cylinder, a reset torsion spring is fixedly connected between the fixed cylinder and the rotating cylinder, a spring sheet is fixedly connected to the outer wall of the rotating cylinder, a slider is fixedly connected to the inner wall of the rotating cylinder, an annular groove is provided on the front part of the side wall of the socket terminal, and a sliding groove for sliding the slider is provided on the socket terminal located in front of the annular groove, and the rotating cylinder can be rotated when the slider slides in the sliding groove.

[0008] By adopting the above technical solution, when it is necessary to connect the aluminum busbar with the socket terminal, first fix the gasket to the connecting hole on the aluminum busbar, then pass the aluminum busbar through the aluminum conductor end cover and insert it into the plug housing, at this time the socket busbar will push the spring sheet to move upward and make the spring sheet and the gasket cooperate with each other, so as to preliminarily locate the position of the aluminum busbar, then connect the plug housing with the plug assembly, make the socket terminal pass through the connecting hole and enter the rotating cylinder, then the slider enters the slide groove and makes the rotating cylinder rotate, when the slider leaves the slide groove and enters the annular groove, the rotating cylinder is rotated and reset under the action of the reset torsion spring, so that the slider is stuck in the annular groove, so that the connection between the socket terminal and the aluminum busbar is stable, and the aluminum busbar and the socket terminal are pressed tightly by the spring sheet to improve stability.

[0009] Optionally, an end cover is hingedly connected to the front side of the plug housing, a plug insulator is fixedly connected inside the plug housing, and an accommodating cavity for accommodating the fixing cylinder is provided on the plug insulator.

[0010] By adopting the above technical solution, when the end cover is closed, the end cover abuts against the fixing tube and pushes the fixing tube to move downward. When the fixing tube moves downward, the spring sheet can abut against the gasket, thereby improving the stability of the connection between the aluminum conductor and the socket terminal.

[0011] Optionally, the aluminum conductor end cover is provided with a through hole for the aluminum bar to pass through, and the front side wall and the rear side wall of the through hole are provided with an arc groove, and the aluminum bar sealing end cover is fixedly connected with a connecting block 1 for sealing the gap between the arc groove and the aluminum bar.

[0012] By adopting the above technical solution, the setting of the arc groove can allow the aluminum rod to pass through without affecting the passage of the aluminum bar, thereby improving the adaptability of the aluminum conductor end cover. At the same time, the connecting block can seal the cavity formed by the arc groove, thereby ensuring the sealing of the device.

[0013] Optionally, the aluminum conductor assembly further includes two aluminum rods and aluminum rod sealing end covers, and the aluminum rod sealing end covers are fixedly connected to a second connecting block, which can seal the gap between the aluminum rod and the through hole.

[0014] By adopting the above technical solution, when the aluminum rod is used to connect with the socket terminal, after the aluminum rod passes through the aluminum conductor end cover, the gap through the hole can be blocked by the second connecting block, thereby improving the applicability of the device while ensuring the sealing of the device.

[0015] Optionally, the diameter of the accommodating cavity is smaller than the diameter of the fixing cylinder.

[0016] By adopting the above technical solution, since the diameter of the accommodating cavity is smaller than the diameter of the fixing cylinder, the plug insulator can apply pressure to the spring sheet, so that the spring sheet and the gasket are pressed tightly to improve stability.

[0017] Optionally, the socket assembly further includes a socket shell and a socket insulator, the socket shell is bolted to the upper surface of the base, the socket insulator is fixedly disposed inside the socket shell, and the socket terminal is fixedly connected inside the socket insulator.

[0018] By adopting the above technical solution, the setting of the socket insulator can prevent current from passing through, thereby improving safety.

[0019] Optionally, sealing rings are provided between the end cover and the plug housing, between the socket insulator and the socket housing, and between the socket housing and the base.

[0020] By adopting the above technical solution, the provision of the sealing ring can improve the sealing performance of the connection device, thereby facilitating the improvement of safety and stability.

[0021] Optionally, a silver-plated layer and knurling are provided at a connection between the socket terminal and the aluminum conductor.

[0022] By adopting the above technical solution, the surface of the connection between the socket terminal and the aluminum conductor is silver-plated, which can reduce the contact resistance and improve the conductivity of the electrical connection. In addition, the knurling can reduce the contact resistance and improve the wear resistance.

[0023] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects:

[0024] 1. The position of the aluminum bar is initially positioned by the cooperation between the spring and the gasket. In the process of assembling the plug housing and the socket housing, the aluminum conductor and the socket terminal can be connected by the cooperation between the slider and the slide groove, which saves time and is simple to operate. Then, the cooperation between the slider and the annular groove and the cooperation between the gasket and the spring can make the connection between the aluminum conductor and the socket terminal more stable.

[0025] 2. By setting the aluminum conductor end cap, the aluminum bar sealing end cap and the aluminum rod sealing end cap, the switching between the aluminum rod and the aluminum bar can be achieved by simply replacing the corresponding sealing end cap, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0027] Figure 2 It is an exploded schematic diagram of the aluminum conductor end cover and the aluminum bar sealing end cover according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the aluminum bar and the socket terminal assembled according to an embodiment of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the assembly of the socket insulator and the socket terminal according to an embodiment of the present invention;

[0030] Figure 5 for Figure 4 A partial enlarged view of the middle area A;

[0031] Figure 6 This is a schematic structural diagram of the assembly of the rotating cylinder and the slider according to an embodiment of the present invention;

[0032] Figure 7 It is a schematic structural diagram of the assembly of an aluminum rod and an aluminum rod sealing end cover according to an embodiment of the present invention.

[0033] Explanation of the reference numerals: 1. plug housing; 11. plug insulator; 2. socket assembly; 21. socket terminal; 22. socket housing; 23. socket insulator; 3. base; 4. aluminum conductor assembly; 41. aluminum bar; 42. aluminum conductor end cover; 43. aluminum bar sealing end cover; 44. aluminum rod; 45. aluminum rod sealing end cover; 46. connecting block 2; 5. connecting hole; 51. gasket; 52. fixing cylinder; 53. supporting spring; 54. rotating cylinder; 55. reset torsion spring; 56. spring piece; 57. slider; 58. annular groove; 59. slide groove; 6. end cover; 61. accommodating chamber; 7. through hole; 71. arc groove; 72. connecting block 1; 8. sealing ring. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 7 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0035] Reference Figure 1 , Figure 2 and Figure 3A high-power charging aluminum conductor connection device includes a base 3, a plug housing 1, a socket assembly 2 that cooperates with the plug housing 1 and is connected to the base 3, and an aluminum conductor assembly 4 that cooperates with the socket assembly 2. The base 3 is in the shape of a rectangular parallelepiped. In this embodiment, for the convenience of description, the length direction of the base 3 is defined as the left-right direction, the width direction is the front-to-back direction, and the height direction is the up-down direction. The front side of the plug housing 1 is hinged with an end cover 6, and the end cover 6 is connected to the plug housing 1 by bolts to prevent the end cover 6 from opening. A plug insulator 11 is fixedly connected to the plug housing 1, and a receiving cavity 61 is provided in the plug insulator 11. The receiving cavity 61 is cylindrical; the socket assembly 2 includes a socket housing 22, a socket insulator 23 and a socket terminal 21. The socket housing 22 is connected to the base 3 by bolts. The insulator 23 is fixedly connected to the socket housing 22, and the socket terminal 21 is fixedly connected to the socket insulator 23. The surface of the connection between the socket terminal 21 and the aluminum conductor is silver-plated and knurled. The aluminum conductor assembly 4 includes two aluminum bars 41, an aluminum conductor end cover 42 and an aluminum bar sealing end cover 43 arranged at a front-to-back interval. The aluminum bar 41 passes through the aluminum bar sealing end cover 43, the aluminum conductor end cover 42, the plug housing 1 and the socket insulator 23 in sequence. A connecting hole 5 is opened on the rear side of the aluminum bar 41. When the plug housing 1 and the socket housing 22 are assembled, the socket terminal 21 can pass through the connecting hole 5 of the aluminum bar 41.

[0036] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 A gasket 51 is fixedly connected to the front side of the connecting hole 5, a fixed cylinder 52 is arranged in the accommodating cavity 61, the fixed cylinder 52 is cylindrical and the diameter of the accommodating cavity 61 is smaller than the diameter of the fixed cylinder 52, a supporting spring 53 is connected between the fixed cylinder 52 and the socket insulator 23, a rotating cylinder 54 is rotatably connected in the fixed cylinder 52, a reset torsion spring 55 is fixedly connected between the rotating cylinder 54 and the fixed cylinder 52, a spring piece 56 is fixedly connected to the rear outer wall of the rotating cylinder 54, a plurality of sliders 57 are fixedly connected to the inner wall of the rotating cylinder 54, an annular groove 58 is provided at the front end of the side wall of the socket terminal 21, a plurality of slide grooves 59 are provided at the front side of the annular groove 58 for the slider 57 to slide, the slider 57 and the slide groove 59 are both inclined so that the rotating cylinder 54 can rotate when the slider 57 slides in the slide groove 59.

[0037] Reference Figure 2 , Figure 4 and Figure 7In order to make the device also applicable to the aluminum rod 44, the aluminum conductor assembly 4 also includes two aluminum rods 44 and aluminum rod sealing end covers 45 arranged at intervals in front and back. The ends of the aluminum rods 44 are flattened and then a hole is opened to achieve connection with the socket terminal 21. The aluminum conductor end cover 42 is provided with a through hole 7 for the aluminum bar 41 to pass through. The front side wall and the rear side wall of the through hole 7 are both provided with an arc groove 71 for the aluminum rod 44 to pass through. The aluminum bar sealing end cover 43 is fixedly connected with a connecting block 72 capable of sealing the gap between the through hole 7 and the aluminum bar 41. A connecting block 46 for sealing the gap between the aluminum rod 44 and the through hole 7 is fixedly connected to the aluminum rod sealing end cover 45, so as to achieve the sealing of the device. A sealing ring 8 is provided between the end cover 6 and the plug housing 1, between the socket insulator 23 and the socket housing 22, and between the socket housing 22 and the base 3. In order to achieve the sealing of the device, in other embodiments, the device can also be applied to the connection of aluminum wires. After the terminal is welded on the end of the aluminum wire, the aluminum wire and the socket terminal 21 are connected in the same way as the aluminum rod 44.

[0038] The implementation principle of a high-power charging aluminum conductor connection device of the embodiment of the present invention is as follows: when it is necessary to connect the aluminum conductor to the socket terminal 21, first fix the gasket 51 to the connection hole 5 on the aluminum conductor, then pass the aluminum conductor end cover 42 and insert it into the plug housing 1, and make the accommodating cavity 61 coaxial with the connection hole 5, and the gasket 51 passes through the spring sheet 56 and is located below the spring sheet 56, so as to preliminarily locate the position of the aluminum conductor, and then assemble the plug housing 1 to the socket housing 22, so that the socket terminal 21 passes through the connection hole 5 enters the rotating cylinder 54, at which time the slider 57 enters the slide groove 59 to slide and drive the rotating cylinder 54 to rotate, and the slider 57 is separated from the slide groove 59 and enters the annular groove 58. Under the action of the reset torsion spring 55, the rotating cylinder 54 is reset, so that the slider 57 is stuck in the annular groove 58, and then the socket terminal 21 and the aluminum conductor are tightly connected. When the aluminum conductor is an aluminum bar 41, the device is sealed by the aluminum bar sealing end cover 43, and when the aluminum conductor is an aluminum rod 44, the device is sealed by the aluminum rod sealing end cover 45.

[0039] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-power charging aluminum conductor connection device, comprising a plug housing (1), a socket assembly (2) connected to the plug housing (1), a base (3) connected to the socket assembly (2), and an aluminum conductor assembly (4), characterized in that: The aluminum conductor assembly (4) comprises two aluminum bars (41), an aluminum conductor end cover (42) and an aluminum bar sealing end cover (43); the socket assembly (2) comprises a socket terminal (21); a connection hole (5) is formed at one end of the aluminum bar (41), and the socket terminal (21) is arranged through the connection hole (5); A gasket (51) is fixedly connected to the connecting hole (5), a fixed cylinder (52) is provided in the plug housing (1), an outer wall of the fixed cylinder (52) is provided with a supporting spring (53), a rotating cylinder (54) is rotatably connected in the fixed cylinder (52), a return torsion spring (55) is fixedly connected between the fixed cylinder (52) and the rotating cylinder (54), a spring sheet (56) is fixedly connected to the outer wall of the rotating cylinder (54), a sliding block (57) is fixedly connected to the inner wall of the rotating cylinder (54), an annular groove (58) is provided at the front of the side wall of the socket terminal (21), and a sliding groove (59) for the sliding block (57) to slide is provided on the socket terminal (21) located in front of the annular groove (58), and when the sliding block (57) slides in the sliding groove (59), the rotating cylinder (54) can be rotated; The gasket (51) passes through the spring sheet (56) and is located below the spring sheet (56), thereby preliminarily positioning the position of the aluminum conductor.

2. A high-power charging aluminum conductor connection device according to claim 1, characterized in that: An end cover (6) is hingedly connected to the front side of the plug housing (1), a plug insulator (11) is fixedly connected inside the plug housing (1), and an accommodating cavity (61) for accommodating a fixing cylinder (52) is provided on the plug insulator (11).

3. A high-power charging aluminum conductor connection device according to claim 1, characterized in that: The aluminum conductor end cover (42) is provided with a through hole (7) for the aluminum bar (41) to pass through, and the front side wall and the rear side wall of the through hole (7) are both provided with an arc-shaped groove (71), and the aluminum bar sealing end cover (43) is fixedly connected with a connecting block 1 (72) capable of sealing the gap between the arc-shaped groove (71) and the aluminum bar (41).

4. A high-power charging aluminum conductor connection device according to claim 1, characterized in that: The aluminum conductor assembly (4) further comprises two aluminum rods (44) and an aluminum rod sealing end cover (45). A second connecting block (46) is fixedly connected to the aluminum rod sealing end cover (45). The second connecting block (46) is capable of sealing the gap between the aluminum rod (44) and the through hole (7).

5. A high-power charging aluminum conductor connection device according to claim 2, characterized in that: The diameter of the accommodating cavity (61) is smaller than the diameter of the fixing cylinder (52).

6. A high-power charging aluminum conductor connection device according to claim 2, characterized in that: The socket assembly (2) further comprises a socket housing (22) and a socket insulator (23); the socket housing (22) is bolted to the upper surface of the base (3); the socket insulator (23) is fixedly arranged inside the socket housing (22); and the socket terminal (21) is fixedly connected inside the socket insulator (23).

7. A high-power charging aluminum conductor connection device according to claim 6, characterized in that: Sealing rings (8) are provided between the end cover (6) and the plug housing (1), between the socket insulator (23) and the socket housing (22), and between the socket housing (22) and the base (3).

8. A high-power charging aluminum conductor connection device according to claim 1, characterized in that: The connection between the socket terminal (21) and the aluminum conductor is provided with a silver-plated layer and knurled.

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