Aluminum busbar connection assembly

Abstract

The present invention discloses an aluminum busbar connection assembly, which relates to the technical field of new energy vehicles. The aluminum busbar connection assembly includes an aluminum busbar, a charging seat, a flexible conductor and two connection structures. The two ends of the aluminum busbar are connected to the charging seat and the flexible conductor through the two connection structures. The connection structure includes a clamping shell, a connecting shell and a limiting structure. The limiting structure includes a fixed part and a matching part that are snap-fitted. One of the matching part and the fixed part is provided in the clamping shell, and the other is provided in the connecting shell. The connecting shell and the clamping shell can be fixed by the cooperation of the fixing part and the matching part, so as to provide an accommodating space for the connection between the plug of the charging seat and the connector of the aluminum busbar, or the connection between the connector of the flexible conductor and the connector of the aluminum busbar, thereby protecting the connection parts and realizing the assembly of the aluminum busbar and the flexible conductor or the aluminum busbar and the charging seat.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to an aluminum busbar connection assembly. Background Art

[0002] New energy vehicles represented by pure electric vehicles and plug-in hybrid vehicles are replacing traditional fuel vehicles. As the charging power of new energy vehicles continues to increase, the outer diameter of existing ordinary twisted high-voltage cables continues to increase. It is difficult to arrange cables in the limited space of the whole vehicle. Therefore, some solutions use the flexible cable segment of the cable to be electrically connected to the rigid conductor segment. In this way, in the process of connecting the cable to the charging seat and the connector, the rigid conductor segment can be pre-formed into an adaptive shape according to the installation space, which helps the rigid conductor segment to bend and arrange in the space-constrained vehicle environment. The flexible cable segment can absorb the manufacturing tolerance of the vehicle body and the manufacturing tolerance of the rigid conductor segment. However, there are problems such as how to assemble different cables and between the cable and the charging seat, and how to improve the sealing of the assembly. Summary of the invention

[0003] The main purpose of the present invention is to provide an aluminum bar connection assembly, which aims to solve the assembly problems between different cables and between cables and charging bases.

[0004] To achieve the above object, the aluminum bar connection assembly proposed in the present invention includes an aluminum bar, a charging seat, a flexible conductor and two connection structures, and the two ends of the aluminum bar are connected to the charging seat and the flexible conductor through the two connection structures, and the connection structures include:

[0005] The locking housing has a mounting cavity with one side open, and the mounting cavity has a first opening on a side surface corresponding to the open side;

[0006] A connecting shell has an inner cavity, and a second opening communicating with the inner cavity is formed at an end of the connecting shell toward the locking shell, and the connecting shell can be inserted into the mounting cavity from an open side of the mounting cavity; and

[0007] The limiting structure comprises a fixing portion and a matching portion which are snap-fitted, wherein one of the matching portion and the fixing portion is arranged on the locking housing, and the other is arranged on the connecting housing;

[0008] The connector of the aluminum bar can extend from the first opening, pass through the installation cavity, and then be inserted and fixed on the connection shell through the second opening.

[0009] In one embodiment, a first protrusion is protruding from the inner side surface of the installation cavity to form a fixing portion;

[0010] A second protrusion is protruding from the outer side surface of the portion of the connecting shell extending into the installation cavity to form a matching portion;

[0011] The first protrusion and the second protrusion are tightly arranged in a transverse direction.

[0012] In one embodiment, two blocking portions spaced laterally are provided in the inner cavity of the connecting housing;

[0013] The connection structure further includes a stopper mounted between the two blocking portions, the stopper including:

[0014] A body is provided in a ring shape, the body is fixedly sleeved on the outer surface of the joint of the aluminum bar, and the end of the body facing the connecting shell is used to abut against one of the blocking parts; and

[0015] The elastic arm has one end fixed to the body and the other end used to abut against another blocking portion.

[0016] In one embodiment, the two connection structures include a first connection structure, the first connection structure is connected to the charging base, and the outer surface of the connection shell of the first connection structure is further provided with a mounting hole connected to the mounting cavity, and the mounting hole is staggered with the second opening;

[0017] The plug of the charging base is inserted into the inner cavity through the mounting hole to be connected with the joint of the aluminum bar.

[0018] In one embodiment, in the first connection structure, a through hole is provided on the connection housing, and the through hole is arranged opposite to the mounting hole;

[0019] The first connection structure also includes a screw connection member, which passes through the through hole and the joint of the aluminum bar to be locked on the charging base.

[0020] In one embodiment, two aluminum bars are provided, and in each of the connection structures, two connection shells, two locking shells, and two limiting structures are provided accordingly.

[0021] In one embodiment, the two connection structures further include a second connection structure, the second connection structure is connected to the flexible conductor, and the two connection shells in the second connection structure are fixedly connected.

[0022] In one embodiment, the outer surface of the connection housing of the second connection structure is further provided with a third opening, and the third opening is arranged opposite to the second opening in the transverse direction;

[0023] The second connection structure further includes a fixed shell, the fixed shell having a matching cavity opened on one side, and the matching cavity and the side opposite to the open side thereof are provided with a fourth opening;

[0024] The connecting shell in the second connecting structure can be inserted into the matching cavity from the open side of the fixed shell;

[0025] The connector of the flexible conductor can extend from the fourth opening, pass through the matching cavity and the third opening, and then be connected with the connector of the aluminum bar in the inner cavity.

[0026] In one embodiment, the connection structure further includes a sealing ring, which is disposed in the installation cavity and is arranged around the aluminum bar and / or the flexible conductor.

[0027] In one embodiment, the flexible conductor comprises a soft copper busbar or cable.

[0028] In the technical solution provided by the present invention, the connecting shell can be inserted into the installing cavity from the open side of the installing cavity, the connector of the aluminum busbar extends from the first opening, passes through the installing cavity, and is inserted and fixed on the connecting shell at the second opening, and the connector of the aluminum busbar can be connected with the plug of the charging seat or the connector of the flexible conductor in the inner cavity of the connecting shell; the limiting structure includes a fixing part and a matching part that are snap-fitted, one of the matching part and the fixing part is arranged on the snap-fit ​​shell, and the other is arranged on the connecting shell, and the connecting shell and the snap-fit ​​shell can be fixed through the cooperation of the fixing part and the matching part, providing an accommodating space for the connection between the plug of the charging seat and the connector of the aluminum busbar, or providing an accommodating space for the connection between the connector of the flexible conductor and the connector of the aluminum busbar, thereby protecting the connecting part and realizing the assembly of the aluminum busbar and the flexible conductor or the aluminum busbar and the charging seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of an aluminum bar connection assembly provided by the present invention;

[0031] Figure 2 for Figure 1 An exploded view of the first connection structure;

[0032] Figure 3 for Figure 1 An assembly diagram of the first connecting structure;

[0033] Figure 4 for Figure 1 A three-dimensional schematic diagram of the first connecting structure connecting the aluminum bar and the charging base;

[0034] Figure 5 for Figure 1 An exploded view of the second connection structure;

[0035] Figure 6 for Figure 1 Schematic diagram of the assembly of the second connecting structure;

[0036] Figure 7 A schematic diagram of the three-dimensional structure of another embodiment of the aluminum bar connection assembly provided by the present invention;

[0037] Figure 8 for Figure 7 An exploded view of the second connection structure;

[0038] Fig. 9 for Figure 7 Schematic diagram of the assembly of the second connecting structure.

[0039] Description of Figure Numbers:

[0040] 1000. Aluminum busbar connection assembly; 1. Aluminum busbar; 2. Charging seat; 3. Flexible conductor; 4. Connection structure; 41. Positioning shell; 411. First opening; 42. Connection shell; 421. Second opening; 422. Blocking part; 43. Limiting structure; 431. Fixing part; 432. Matching part; 44. Retaining piece; 441. Main body; 442. Elastic arm; 45. First connection structure; 451. Mounting hole; 452. Through hole; 453. Screw-on part; 46. Second connection structure; 461. Third opening; 47. Fixing shell; 471. Fourth opening; 5. Flexible conductor connector; 6. Sealing ring.

[0041] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] New energy vehicles represented by pure electric vehicles and plug-in hybrid vehicles are replacing traditional fuel vehicles. As the charging power of new energy vehicles continues to increase, the outer diameter of existing ordinary twisted high-voltage cables continues to increase. It is difficult to arrange cables in the limited space of the whole vehicle. Therefore, some solutions use the flexible cable segment of the cable to be electrically connected to the rigid conductor segment. In this way, in the process of connecting the cable to the charging seat and the connector, the rigid conductor segment can be pre-formed into an adaptive shape according to the installation space, which helps the rigid conductor segment to bend and arrange in the space-constrained vehicle environment. The flexible cable segment can absorb the manufacturing tolerance of the vehicle body and the manufacturing tolerance of the rigid conductor segment. However, there are problems such as how to assemble different cables and between the cable and the charging seat, and how to improve the sealing of the assembly.

[0046] In order to solve this technical problem, the present invention provides an aluminum bar connection assembly to solve the assembly problem between existing cables and between cables and charging sockets.

[0047] See also Figure 1 The aluminum bar connection assembly 1000 includes an aluminum bar 1, a charging base 2, a flexible conductor 3 and two connection structures 4. The two ends of the aluminum bar 1 are connected to the charging base 2 and the flexible conductor 3 through the two connection structures 4. Please refer to Figure 2 and Figure 3The connection structure 4 includes a locking shell 41, a connecting shell 42 and a limiting structure 43. The locking shell 41 has a mounting cavity that is open on one side, and a first opening 411 is provided on the side of the mounting cavity corresponding to the open side; the connecting shell 42 has an inner cavity, and a second opening 421 communicating with the inner cavity is provided on the end of the connecting shell 42 facing the locking shell 41, and the connecting shell 42 can be inserted into the mounting cavity from the open side of the mounting cavity; the limiting structure 43 includes a fixing portion 431 and a matching portion 432 that are snap-fitted, one of the matching portion 432 and the fixing portion 431 is provided on the locking shell 41, and the other is provided on the connecting shell 42; wherein, the connector of the aluminum bar 1 can extend from the first opening 411, and after passing through the mounting cavity, it is inserted and fixed on the connecting shell 42 at the second opening 421.

[0048] In the technical solution provided by the present invention, the two ends of the aluminum bar 1 are connected to the charging seat 2 and the flexible conductor 3 through two connecting structures 4. The connecting structure 4 includes a locking shell 41, a connecting shell 42 and a limiting structure 43. The locking shell 41 has an installation cavity with one side open, and the installation cavity is provided with a first opening 411 on the side corresponding to the open side. The connecting shell 42 has an inner cavity, and the connecting shell 42 is provided with a second opening 421 connected to the inner cavity toward the end of the locking shell 41. The connecting shell 42 can be inserted into the installation cavity from the open side of the installation cavity. The connector of the aluminum bar 1 extends from the first opening 411, passes through the installation cavity, and is inserted and fixed at the second opening 421. On the connecting shell 42, the connector of the aluminum bus 1 can be connected to the plug of the charging seat 2 or the connector of the flexible conductor 3 in the inner cavity of the connecting shell 42; the limiting structure 43 includes a fixing portion 431 and a matching portion 432 that are snap-fitted, one of the matching portion 432 and the fixing portion 431 is provided on the snap-fitting shell 41, and the other is provided on the connecting shell 42, and the connecting shell 42 and the snap-fitting shell 41 can be fixed by the matching of the fixing portion 431 and the matching portion 432, so as to provide an accommodating space for the connection between the plug of the charging seat 2 and the connector of the aluminum bus 1, or to provide an accommodating space for the connection between the connector of the flexible conductor 3 and the connector of the aluminum bus 1, thereby protecting the connecting parts and realizing the assembly of the aluminum bus 1 and the flexible conductor 3 or the aluminum bus 1 and the charging seat 2.

[0049] It should be noted that, when it is necessary to separate the aluminum bus 1 from the charging base 2 or the aluminum bus 1 from the flexible conductor 3, taking the assembly of the aluminum bus 1 and the charging base 2 as an example, the fixing portion 431 and the matching portion 432 can be released to separate the locking shell 41 from the connecting shell 42, and the connection between the connector of the aluminum bus 1 and the connecting shell 42 can be released, thereby releasing the disassembly and assembly of the aluminum bus 1 and the charging base 2.

[0050] exist Figure 1In the embodiment of Figure 3 The inner side surface of the installation cavity is provided with a first protrusion to form a fixing portion 431, and the outer side surface of the portion of the connection shell 42 extending into the installation cavity is provided with a second protrusion to form a matching portion 432, and the first protrusion and the second protrusion are arranged to be tightly pressed in the transverse direction. During assembly, the joint of the aluminum bar 1 passes through the first opening 411 and the second opening 421 in sequence, and at the same time, the open side of the locking shell 41 accommodates one end of the connection shell 42 with the second opening 421, that is, the end portion of the connection shell 42 with the second opening 421 extends into the installation cavity from the open side of the locking shell 41. After the joint of the aluminum bar 1 extends into the inner cavity of the connection shell 42, the locking shell 41 is pushed to move toward the direction of the connection shell 42 until the first protrusion passes over the second protrusion and abuts against the second protrusion. In some other embodiments, the fixing portion 431 and the matching portion 432 can also be configured as protrusions and grooves of matching shapes, or threaded columns and threaded holes, etc. The present invention does not make any limitation thereto. However, when the first protrusion and the second protrusion are matched, the structure is simple and easy to install.

[0051] Furthermore, in this embodiment, two blocking portions 422 spaced laterally are provided in the inner cavity of the connection shell 42, and the connection structure 4 further includes a stopper 44 clamped between the two blocking portions 422, the stopper 44 includes a body 441 and an elastic arm 442, the body 441 is provided in an annular shape, the body 441 is fixedly sleeved on the outer surface of the joint of the aluminum bar 1, the end of the body 441 facing the connection shell 42 is used to abut against one of the blocking portions 422, one end of the elastic arm 442 is fixed to the body 441, and the other end is used to abut against the other blocking portion 422. In this way, the stopper 44 is limited to between the two blocking portions 422 in the inner cavity of the connection shell 42, so that the joint of the aluminum bar 1 is fixed in the inner cavity, and the length of the aluminum bar 1 extending into the connection shell 42 can be adjusted by adjusting the specific position where the body 441 is fixed on the aluminum bar 1. It should be noted that the main body 441 is annularly arranged and fixedly sleeved on the outer surface of the joint of the aluminum bar 1. After determining the length of the aluminum bar 1 extending into the connecting shell 42, the main body 441 is fixedly connected to the outer surface of the joint of the aluminum bar 1. In some other embodiments, the stopper 44 may not be annularly arranged on the aluminum bar 1, as long as it is partially fixed on the aluminum bar 1 and can be limited between the two blocking parts 422 of the connecting shell 42.

[0052] Specifically, during assembly, determine the length of the aluminum bar 1 extending into the connecting shell 42, and fix the retaining member 44 at the corresponding position on the outer surface of the aluminum bar 1; then, pass the aluminum bar 1 through the installation cavity of the positioning shell 41 and extend into the connecting shell 42, and the retaining member 44 enters the inner cavity with the aluminum bar 1; after the retaining member 44 reaches the preset position, one end of the elastic arm 442 and one end of the main body 441 respectively abut against the two blocking parts 422 in the inner cavity, fix the joint of the aluminum bar 1 in the connecting shell 42, and prevent the aluminum bar 1 from moving laterally.

[0053] When the connecting structure 4 connects the charging seat 2 and the aluminum bar 1, the space in the inner cavity may include a first part and a second part, the spatial cross-section of the first part along the direction perpendicular to the entry and exit of the aluminum bar 1 is set to be adapted to the cross-section of the aluminum bar 1, and the spatial cross-section of the second part along the direction perpendicular to the entry and exit of the aluminum bar 1 is set to be larger than the cross-section of the aluminum bar 1, so that the inner cavity walls of the first part space and the second part space are stepped, which can serve as one of the blocking parts 422, and the inner cavity wall corresponding to the second part space protrudes a protrusion into the inner cavity to form another blocking part 422, when the stop member 44 passes through the protrusion, the elastic arm 442 is deformed, so that the stop member 44 can pass through the protrusion, and then when the elastic arm 442 returns to its position, the free end of the elastic arm 442 abuts against the protrusion, and the body 441 of the stop member 44 abuts against the stepped inner cavity wall, thereby limiting the stop member 44 between the two blocking parts 422.

[0054] Furthermore, the connection structure 4 further includes a sealing ring 6, which is disposed in the installation cavity and is arranged around the aluminum bar 1. The inner ring of the sealing ring 6 is connected to the outer wall of the aluminum bar 1, and the outer ring of the sealing ring 6 is connected to the inner side wall of the positioning housing 41 and / or the inner side wall of the connection housing 42, so as to seal the connection structure 4 and the aluminum bar 1.

[0055] In the embodiments of the present invention, please refer to Figure 2 and Figure 3 The two connection structures 4 include a first connection structure 45, the first connection structure 45 is connected to the charging seat 2, and the outer surface of the connection shell 42 of the first connection structure 45 is also provided with a mounting hole 451 connected to the mounting cavity, and the mounting hole 451 is staggered with the second opening 421; the plug of the charging seat 2 is inserted into the inner cavity through the mounting hole 451 to connect with the joint of the aluminum bar 1. Figure 2 and Figure 4, the second opening 421 is arranged in the transverse direction of the connection housing 42, the mounting hole 451 is arranged in the longitudinal direction of the connection housing 42, the connection housing 42 has an annular fixing structure extending outward from the mounting hole 451, and the plug of the charging stand 2 is correspondingly provided with an annular groove, when the plug of the charging stand 2 extends into the connection housing 42 from the mounting hole 451, the annular fixing structure outside the connection housing 42 is inserted into the annular groove. In addition, a sealing ring 6 can be arranged on the outer side of the annular fixing structure to seal the mounting hole 451 of the connection housing 42 and the fixed plug of the charging stand 2.

[0056] In the embodiments of the present invention, please refer to Figure 4 In the first connection structure 45, a through hole 452 is provided on the connection shell 42, and the through hole 452 is arranged opposite to the mounting hole 451; the first connection structure 45 also includes a screw 453, and the screw 453 passes through the through hole 452 and the joint of the aluminum bar 1 to be locked on the charging seat 2. The aluminum bar 1 is fixed to the mounting shell, and a through hole is provided at the joint of the aluminum bar 1, and a threaded hole is provided on the plug of the charging seat 2. The screw 453 passes through the through hole and is fixed in the threaded hole. The aluminum bar 1 joint, the charging seat 2 plug and the first connection structure 45 are fixed by the screw 453, so that the high-power electrical connection function of the aluminum bar 1 connection structure 4 can be realized. It should be noted that the connection structure 4 can also include a cover body, which is provided on the through hole 452 to shield the screw 453 in the connection structure 4.

[0057] Furthermore, two of the aluminum bars 1 are provided, and in each of the connection structures 4, two of the connection shell 42, the positioning shell 41, and the limiting structure 43 are provided. The connectors of the two aluminum bars 1 correspond to the two connectors of the charging base 2, namely the positive connector and the negative connector. Based on different specific demand scenarios, the two connection shells 42 can be fixedly connected or separately provided. One aluminum bar 1 corresponds to one connection shell 42 and one positioning shell 41 to realize the assembly of multiple aluminum bars 1. Figure 4 In the illustrated embodiment, in the first connection structure 45 , the two connection shells 42 and the two locking shells 41 in the connection structure 4 are separately arranged, so the two aluminum bars 1 can be assembled with the charging seat 2 respectively.

[0058] In the embodiments of the present invention, please refer to Figure 5 and Figure 6The two connection structures 4 further include a second connection structure 46, the second connection structure 46 connects the flexible conductor 3, and the two connection shells 42 in the second connection structure 46 are fixedly connected. In this way, the two aluminum bars 1 and the two flexible conductors 3 respectively connected to the two aluminum bars 1 can be connected through the second connection structure 46, which can not only achieve physical isolation of the positive and negative electrodes and ensure the insulation performance between the two aluminum bars 1, but also make the structure more unified, reduce the risk of looseness or deformation caused by the combination of multiple components, and thus improve the overall stability of the device.

[0059] Furthermore, the outer surface of the connection shell 42 of the second connection structure 46 is also provided with a third opening 461, and the third opening 461 is arranged opposite to the second opening 421 in the transverse direction; the second connection structure 46 also includes a fixed shell 47, and the fixed shell 47 has a matching cavity opened on one side, and the matching cavity and its open side are provided with a fourth opening 471 along the side opposite to the open side in the transverse direction; the connection shell 42 in the second connection structure 46 can be inserted into the matching cavity from the open side of the fixed shell 47; wherein, the connector of the flexible conductor 3 can extend from the fourth opening 471, and after passing through the matching cavity and the third opening 461, it is connected to the connector of the aluminum bar 1 in the inner cavity. It should be noted that the connection shell 42, the positioning shell 41 and the fixed shell 47 can also be arranged in two parts for assembly, so as to Figure 6 For example, the second connection structure 46 is divided into an upper part and a lower part by the aluminum bar 1 and the flexible conductor 3 in the longitudinal direction, and the lower part of the first second connection structure 46 is connected to the upper part of the first second connection structure 46, wherein the connection part of the connection shell 42 can be integrally formed, and the connection part of the clamping shell 41 and the fixed shell 47 can be integrally formed or separately formed. During assembly, the joint of the aluminum bar 1 and the joint of the flexible conductor 3 are fixedly connected, which can be welded, and then the upper part and the lower part of each connection shell 42 are buckled, which can be buckled at the side or screwed, and then the clamping shell 41 and the fixed shell 47 are assembled separately to realize the assembly of the aluminum bar 1 and the flexible conductor 3.

[0060] It should be noted that the sealing ring 6 can also be arranged in the matching cavity and is arranged around the flexible conductor 3. The inner ring of the sealing ring 6 is connected to the outer wall of the flexible conductor 3, and the outer ring of the sealing ring 6 is connected to the inner side wall of the fixed shell 47 and / or the inner side wall of the connecting shell 42 to seal the connecting structure 4 and the aluminum bar 1. In other embodiments, the sealing ring 6 can fill other spaces in the matching cavity of the fixed shell 47 to obtain a better sealing effect. At the same time, the fixed shell 47 can also limit the sealing ring 6 to the matching cavity of the fixed shell 47 to prevent the sealing ring 6 from moving or shaking.

[0061] It should be noted that the flexible conductor 3 also includes a flexible conductor connector 5, and the flexible conductor connector 5 is used to connect the flexible conductor 3 to a device that receives current.

[0062] In one embodiment of the present invention, please refer to Figure 1 and Figure 5 , the flexible conductor 3 includes a soft copper busbar, the aluminum busbar connection assembly 1000 includes an aluminum busbar 1, a charging seat 2, a soft copper busbar, a first connection structure 45 and a second connection structure 46, the first connection structure 45 connects the aluminum busbar 1 and the charging seat 2, and the second connection structure 46 connects the aluminum busbar 1 and the soft copper busbar; two aluminum busbars 1 are provided, and in each of the connection structures 4, two connection shells 42 and two clamping shells 41 are provided accordingly. In the first connection structure 45, the two connection shells 42 are separately provided, and the two clamping shells 41 are separately provided to connect the connectors of the two aluminum busbars 1 to the two plugs of the charging seat 2 respectively. In the second connection structure 46, the two connection shells 42 are fixedly connected and provided so that the two aluminum busbars 1 are stacked; the connection shell 42, the clamping shell 41, the fixed shell 47 and the stopper 44 are all made of insulating materials, and the connection points where the two aluminum busbars 1 are connected to the two soft copper busbars are physically isolated to ensure insulation performance. A sealing ring 6 is provided in the installation cavity of the locking shell 41 to seal the aluminum busbar 1 and the inner wall of the installation cavity, and a sealing ring 6 is provided in the matching cavity of the fixed shell 47 to seal the soft copper busbar and the inner wall of the matching cavity, thereby improving the sealing performance of the second connecting structure 46, and the protection level of the joint of the soft copper busbar can reach IPX8.

[0063] In another embodiment of the present invention, see Figure 7 The flexible conductor 3 includes a cable, and the aluminum bar connection assembly 1000 includes an aluminum bar 1, a charging seat 2, a cable, a first connection structure 45 and a second connection structure 46. Figure 8 and Fig. 9, the first connection structure 45 connects the aluminum bar 1 and the charging seat 2, and the second connection structure 46 connects the aluminum bar 1 and the cable; two aluminum bars 1 are provided, and in each of the connection structures 4, two connection shells 42 and two locking shells 41 are provided accordingly. In the first connection structure 45, the two connection shells 42 are separately provided, and the two locking shells 41 are separately provided, so as to connect the connectors of the two aluminum bars 1 to the two plugs of the charging seat 2 respectively. In the second connection structure 46, the two connection shells 42 are fixedly connected and provided, and the two aluminum bars 1 are provided in parallel. The connection shell 42, the locking shell 41, the fixed shell 47 and the stopper 44 are all made of insulating materials, and the connection points where the two aluminum bars 1 are respectively connected to the two cables are physically isolated to ensure the insulation performance. The installation cavity of the locking shell 41 is provided with a sealing ring 6 that seals the aluminum bar 1 and the inner wall of the installation cavity, and the matching cavity of the fixed shell 47 is provided with a sealing ring 6 that seals the cable and the inner wall of the matching cavity, thereby improving the sealing performance of the second connection structure 46.

[0064] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An aluminum bar connection assembly, characterized in that: The aluminum bar connection assembly includes an aluminum bar, a charging seat, a flexible conductor and two connection structures. The two ends of the aluminum bar are connected to the charging seat and the flexible conductor through the two connection structures. The connection structures include: The locking housing has a mounting cavity with one side open, and the mounting cavity has a first opening on a side surface corresponding to the open side; A connecting shell has an inner cavity, and a second opening communicating with the inner cavity is formed at an end of the connecting shell toward the locking shell, and the connecting shell can be inserted into the mounting cavity from an open side of the mounting cavity; and The limiting structure comprises a fixing portion and a matching portion which are snap-fitted, wherein one of the matching portion and the fixing portion is arranged on the locking housing, and the other is arranged on the connecting housing; The connector of the aluminum bar can extend from the first opening, pass through the installation cavity, and then be inserted and fixed on the connection shell through the second opening.

2. The aluminum bar connection assembly according to claim 1, characterized in that: A first protrusion is protruding from the inner side surface of the installation cavity to form a fixing portion; A second protrusion is protruding from the outer side surface of the portion of the connecting shell extending into the installation cavity to form a matching portion; The first protrusion and the second protrusion are tightly arranged in a transverse direction.

3. The aluminum bar connection assembly according to claim 1, characterized in that: Two blocking portions spaced laterally are provided in the inner cavity of the connecting shell; The connection structure further includes a stopper mounted between the two blocking portions, the stopper including: A body is provided in a ring shape, the body is fixedly sleeved on the outer surface of the joint of the aluminum bar, and the end of the body facing the connecting shell is used to abut against one of the blocking parts; and The elastic arm has one end fixed to the body and the other end used to abut against another blocking portion.

4. The aluminum bar connection assembly according to claim 1, characterized in that: The two connection structures include a first connection structure, the first connection structure is connected to the charging seat, the outer surface of the connection shell of the first connection structure is also provided with a mounting hole connected to the mounting cavity, and the mounting hole is staggered with the second opening; The plug of the charging base is inserted into the inner cavity through the mounting hole to be connected with the joint of the aluminum bar.

5. The aluminum bar connection assembly according to claim 4, characterized in that: In the first connection structure, a through hole is provided on the connection shell, and the through hole is arranged opposite to the mounting hole; The first connection structure also includes a screw connection member, which passes through the through hole and the joint of the aluminum bar to be locked on the charging base.

6. The aluminum bar connection assembly according to claim 1, characterized in that: Two aluminum bars are provided, and in each of the connection structures, two connection shells, two locking shells and two limiting structures are provided accordingly.

7. The aluminum bar connection assembly according to claim 6, characterized in that: The two connection structures further include a second connection structure, the second connection structure is connected to the flexible conductor, and the two connection shells in the second connection structure are fixedly connected.

8. The aluminum bar connection assembly according to claim 7, characterized in that: The outer surface of the connection shell of the second connection structure is further provided with a third opening, and the third opening is arranged opposite to the second opening in the transverse direction; The second connection structure further includes a fixed shell, the fixed shell having a matching cavity opened on one side, and the matching cavity and the side opposite to the open side thereof are provided with a fourth opening; The connecting shell in the second connecting structure can be inserted into the matching cavity from the open side of the fixed shell; The connector of the flexible conductor can extend from the fourth opening, pass through the matching cavity and the third opening, and then be connected with the connector of the aluminum bar in the inner cavity.

9. The aluminum bar connection assembly according to claim 1, characterized in that: The connection structure further comprises a sealing ring, which is arranged in the installation cavity and is arranged around the circumference of the aluminum row and / or the circumference of the flexible conductor.

10. The aluminum bar connection assembly according to claim 1, characterized in that: The flexible conductor includes a soft copper busbar or a cable.

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