Electric connection assembly and charging seat assembly

Abstract

The utility model discloses an electric connection assembly and a charging seat. The electric connection assembly comprises a housing which is provided with a matching end which is suitable for being inserted into a matching port on a charging seat housing; the conductive terminal is arranged in the matching end of the shell and is used for being electrically contacted with a charging terminal in the charging seat shell; one end of the power transmission piece extends into the shell; and a fastener disposed in the housing and passing through one end of the power transmission member and the conductive terminal. And the fastener is suitable for being in threaded connection with a nut in the charging seat shell after the matching end of the shell is inserted into the matching port of the charging seat shell, so that the power transmission piece, the conductive terminal and the charging terminal are fastened together. According to the utility model, the connection operation between the electric connection assembly and the charging seat is very simple.

Description

Technical Field

[0001] The utility model relates to an electric connection component and a charging seat component comprising the electric connection component. Background Art

[0002] In the prior art, with the development of new energy vehicles, the competition in the new energy vehicle industry is becoming increasingly fierce. The aluminum busbar connection solution is a low-cost, high-current-carrying solution. However, the connection between the aluminum busbar and the charging terminal of the charging station is difficult. Because the charging station is usually pre-fixed to the body sheet metal, when connecting, the operator cannot see the connection end of the charging terminal and the nut fixed on the connection end, which makes it difficult for the operator to move the connection hole on the aluminum busbar to the connection position where the nut in the charging station shell is aligned. In addition, when connecting, the operator needs to hold the aluminum busbar with one hand and connect the fastening bolt with the other hand, which is very inconvenient.

[0003] Furthermore, in the prior art, the fastener used for threaded connection with the nut in the charging station is usually an independent separate component, which not only makes it easy to lose the fastener, but also brings many inconveniences to the connection operation of the fastener. Utility Model Content

[0004] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0005] According to one aspect of the utility model, an electrical connection assembly is provided. The electrical connection assembly comprises: a housing having a mating end suitable for being inserted into a mating port on a charging seat housing; a conductive terminal disposed in the mating end of the housing for electrically contacting a charging terminal in the charging seat housing; a power transmission member, one end of which extends into the housing; and a fastener disposed in the housing and passing through one end of the power transmission member and the conductive terminal. The fastener is suitable for being threadedly connected to a nut in the charging seat housing after the mating end of the housing is inserted into the mating port of the charging seat housing, so as to fasten the power transmission member, the conductive terminal and the charging terminal together.

[0006] According to one aspect of the utility model, an electrical connection assembly is provided. The electrical connection assembly comprises: a housing having a mating end adapted to be inserted into a mating port on a housing of a charging station; a conductive terminal disposed in the mating end of the housing for electrically contacting a charging terminal in the housing of the charging station;

[0007] a power transmission member, one end of which extends into the housing; and a fastener, which is disposed in the housing and passes through one end of the power transmission member and the conductive terminal. The fastener is adapted to be threadedly connected with a nut in the housing of the charging station after the mating end of the housing is inserted into the mating port of the housing of the charging station, so as to fasten the power transmission member, the conductive terminal and the charging terminal together.

[0008] According to an exemplary embodiment of the present utility model, the housing has a top wall and a bottom wall which are opposite to each other in the axial direction of the mating end, and the mating end is columnar and protrudes from the top wall of the housing.

[0009] According to another exemplary embodiment of the utility model, the electrical connection assembly further includes: a sealing ring, which is sleeved on the mating end and is suitable for being radially squeezed between the outer circumference of the mating end and the inner circumference of the mating port to achieve sealing therebetween.

[0010] According to another exemplary embodiment of the utility model, an annular sealing ring installation groove is formed on the outer circumferential surface of the mating end, and the sealing ring is installed in the sealing ring installation groove.

[0011] According to another exemplary embodiment of the utility model, the housing further has a mounting end axially opposite to the mating end, the mounting end is columnar and protrudes from the bottom wall of the housing, and the mounting end has a mounting port allowing the fastener to enter the housing.

[0012] According to another exemplary embodiment of the utility model, the fastener is pre-installed in the housing via the installation port, and a locking structure for locking the fastener in a pre-installed position is formed on the installation end and the fastener to prevent the fastener from detaching from the housing.

[0013] According to another exemplary embodiment of the utility model, the locking structure includes: an elastic buckle formed in the mounting port of the mounting end; and an annular groove formed on the outer peripheral surface of one end of the fastener. The elastic buckle includes an elastic arm connected to the peripheral wall of the mounting end and a protrusion formed on the end of the elastic arm, and the protrusion is suitable for engaging with the annular groove to lock the fastener in the pre-installed position.

[0014] According to another exemplary embodiment of the utility model, the fastener includes: a bolt for threaded connection with a nut in the charging base housing; and an insulator engaged to the end of the bolt for electrically isolating the bolt from a bolt operating tool for operating the bolt, and the annular groove is formed on the outer peripheral surface of the insulator of the fastener.

[0015] According to another exemplary embodiment of the present invention, the bolt has a stud portion at one end thereof and a flange portion and a head portion at the other end, and the insulator is joined to the flange portion and the head portion of the bolt; the stud portion of the bolt is used for threaded connection with the nut, and the flange portion of the bolt is used to abut against one end of the power transmission member.

[0016] According to another exemplary embodiment of the present invention, the insulator has an engagement portion for engaging with a bolt operating tool, the engagement portion is engaged with a head of the bolt, and cross-sections of the engagement portion and the head of the bolt are non-circular.

[0017] According to another exemplary embodiment of the utility model, the insulator also has a cylindrical portion and a bottom wall portion connected between the cylindrical portion and the bottom of the joint portion, the bottom wall portion is joined to the flange portion of the bolt, and the annular groove is formed on the outer peripheral surface of the cylindrical portion of the insulator.

[0018] According to another exemplary embodiment of the utility model, the electrical connection assembly further includes: a sealing ring, which is sleeved on the cylindrical portion of the insulator and radially squeezed between the outer circumference of the cylindrical portion and the inner circumference of the mounting end to achieve sealing therebetween.

[0019] According to another exemplary embodiment of the present invention, a sealing ring installation groove is formed on the outer circumferential surface of the cylindrical portion of the insulator, and the sealing ring is installed in the sealing ring installation groove.

[0020] According to another exemplary embodiment of the present utility model, the insulator is an injection-molded part formed on the bolt by insert injection molding, so that the bolt and the insulator become an integral part.

[0021] According to another exemplary embodiment of the utility model, one end of the conductive terminal protrudes from the opening of the mating end, and a flat contact end surface is formed on the one end of the conductive terminal, wherein the contact end surface is perpendicular to the axial direction of the conductive terminal and is used for making electrical contact with the charging terminal.

[0022] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes: a connecting terminal, which is electrically connected to one end of the power transmission component and is suitable for electrically contacting an end surface of the other end of the conductive terminal, for electrically connecting one end of the power transmission component to the conductive terminal.

[0023] According to another exemplary embodiment of the utility model, a positioning flange is formed at the other end of the conductive terminal, a positioning step is formed in the shell, and the positioning flange is clamped between the connecting terminal and the positioning step of the shell to position the conductive terminal at a predetermined installation position.

[0024] According to another exemplary embodiment of the present invention, the power transmission component includes a flat aluminum bar and an outer insulating layer covering the aluminum bar, one end of the aluminum bar is exposed from the outer insulating layer, the connecting terminal is riveted or welded to one end of the aluminum bar, and the connecting terminal and the conductive terminal are both copper parts.

[0025] According to another exemplary embodiment of the utility model, through holes allowing the fastener to pass through are respectively formed on one end of the aluminum bar, the connecting terminal and the conductive terminal, and the fastener is used to fasten the connecting terminal, the conductive terminal and the charging terminal together to ensure reliable electrical contact between the three.

[0026] According to another exemplary embodiment of the utility model, the housing has a front end and a rear port opposite to each other in its longitudinal direction, and one end of the power transmission component is inserted into the housing via the rear port; the longitudinal direction of the housing is perpendicular to the axial direction of the mating end, and the mating end is located at a corner of the front end of the housing.

[0027] According to another exemplary embodiment of the utility model, the electrical connection assembly further includes: a sealing sleeve, which is sleeved on the outer insulating layer of one end of the power transmission component and inserted into the rear port of the housing, and the sealing sleeve is squeezed between the outer insulating layer of the power transmission component and the inner wall surface of the rear port of the housing to seal the rear port.

[0028] According to another exemplary embodiment of the utility model, the electrical connection assembly further includes: a rear end cover, which is sleeved onto the outer insulation layer of one end of the power transmission component and snapped onto the rear end of the housing, so as to fix the power transmission component to the rear end of the housing.

[0029] According to another exemplary embodiment of the utility model, the rear end cover includes: a front barrel portion, suitable for being mounted on the rear end of the shell; a rear barrel portion, suitable for being mounted on the outer insulating layer of one end of the power transmission component; and a connecting wall, connected between the rear end of the front barrel portion and the front end of the rear barrel portion, a buckle is formed on the front barrel portion, and a protrusion is formed on the outer wall surface of the rear end of the shell, and the protrusion engages in a slot of the buckle.

[0030] According to another exemplary embodiment of the utility model, a step portion is formed in the rear port of the housing, and the step portion and the connecting wall respectively abut against the front end and the rear end of the sealing sleeve to position the sealing sleeve in the rear port of the housing.

[0031] According to another aspect of the utility model, a charging seat assembly is provided. The charging seat assembly includes: a charging seat and an electrical connection assembly. The charging seat includes: a charging seat housing, formed with a mating port; a charging terminal, disposed in the charging seat housing; and a nut, disposed in the charging seat housing. The mating end of the housing of the electrical connection assembly is mated to the mating port of the charging seat housing, and the fastener of the electrical connection assembly is threadedly connected to the nut in the charging seat housing to fasten the power transmission member, the conductive terminal and the charging terminal together.

[0032] According to another exemplary embodiment of the utility model, the charging base includes two charging terminals, the charging base shell has two matching ports, and the charging base assembly includes two electrical connection assemblies; the matching ends of the shells of the two electrical connection assemblies are respectively inserted into the two matching ports of the charging base shell, and the power transmission components of the two electrical connection assemblies are respectively electrically connected to the two charging terminals.

[0033] According to another exemplary embodiment of the utility model, the charging base assembly also includes: a mounting bracket, suitable for being fixed to the body sheet metal, and the charging base shell is mounted on the mounting bracket, so that the charging base can be fixed to the body sheet metal through the mounting bracket.

[0034] According to another exemplary embodiment of the utility model, the charging base assembly further includes: a mounting bracket, adapted to be fixed to a body sheet metal. The charging base housing is mounted to the mounting bracket, so that the charging base can be fixed to the body sheet metal through the mounting bracket.

[0035] In the aforementioned exemplary embodiments of the present invention, it is only necessary to insert the mating end of the shell of the electrical connection component into the mating port of the charging base shell, and then tighten the fasteners of the electrical connection component to achieve the electrical connection between the power transmission component and the charging terminal, making the connection operation between the electrical connection component and the charging base very simple.

[0036] In addition, in some of the aforementioned exemplary embodiments of the utility model, the mating port on the charging base shell has a trumpet-shaped entrance that opens outward, which can absorb the error caused by the deformation of the power transmission component of the electrical connection component, thereby guiding the mating end of the shell of the electrical connection component to be smoothly inserted into the mating port of the charging base shell, making the connection operation between the electrical connection component and the charging base very simple.

[0037] In addition, in some of the aforementioned exemplary embodiments of the present invention, the fastener can be pre-installed in the housing of the electrical connection assembly and can be locked in the pre-installed position, thereby preventing the fastener from being separated from the housing. When the fastener needs to be threadedly connected to the nut, the fastener can be unlocked by simply pushing the fastener toward the inside of the housing. Therefore, the present invention can prevent the fastener from being lost, and the connection operation of the fastener is very convenient.

[0038] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A three-dimensional schematic diagram showing an electrical connection assembly according to an exemplary embodiment of the utility model;

[0040] Figure 2 A cross-sectional view showing an electrical connection assembly according to an exemplary embodiment of the present invention when viewed from above;

[0041] Figure 3 A cross-sectional view showing an electrical connection assembly according to an exemplary embodiment of the present invention when viewed from below;

[0042] Figure 4 An exploded schematic diagram showing an electrical connection assembly according to an exemplary embodiment of the utility model;

[0043] Figure 5 A three-dimensional schematic diagram showing a power transmission member of an electrical connection assembly according to an exemplary embodiment of the utility model;

[0044] Figure 6 An exploded schematic diagram showing an electrical connection assembly and a charging base according to an exemplary embodiment of the utility model;

[0045] Figure 7 A schematic diagram showing an electrical connection assembly and a charging station according to an exemplary embodiment of the present invention, wherein the mating end of the electrical connection assembly is inserted into the mating port of the charging station housing but the fastener has not yet been connected to the nut in the charging station housing;

[0046] Figure 8 A schematic diagram showing an electrical connection assembly and a charging station according to an exemplary embodiment of the present invention, wherein a fastener of the electrical connection assembly has been connected to a nut in a housing of the charging station;

[0047] Fig. 9 A schematic diagram showing electrical connection between a power transmission member of an electrical connection assembly and a charging terminal of a charging base according to an exemplary embodiment of the present utility model;

[0048] Fig.10 A three-dimensional schematic diagram showing an electrical connection assembly and a charging stand according to an exemplary embodiment of the utility model when viewed from below;

[0049] Fig.11 A partially enlarged schematic diagram showing a charging base according to an exemplary embodiment of the utility model;

[0050] Fig.12 A cross-sectional view showing an electrical connection assembly according to an exemplary embodiment of the present invention, wherein the fastener is pre-installed in the housing and locked in a pre-installed position;

[0051] Fig.13 A three-dimensional schematic diagram showing a fastener of an electrical connection assembly according to an exemplary embodiment of the utility model;

[0052] Fig.14 A three-dimensional schematic diagram showing a housing of an electrical connection assembly according to an exemplary embodiment of the utility model;

[0053] Fig.15 A cross-sectional view showing an electrical connection assembly according to another exemplary embodiment of the present invention, wherein the fastener is pre-installed in the housing and locked in a pre-installed position;

[0054] Fig.16 A cross-sectional view of an electrical connection assembly according to another exemplary embodiment of the present invention is shown, wherein a disassembly tool is engaged to a fastener. DETAILED DESCRIPTION

[0055] The technical solution of the utility model is further specifically described below through examples and in combination with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the implementation mode of the utility model with reference to the accompanying drawings is intended to explain the overall utility model concept of the utility model, and should not be understood as a limitation of the utility model.

[0056] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0057] According to an overall technical concept of the utility model, an electrical connection assembly is provided. The electrical connection assembly includes: a housing having a mating end suitable for being inserted into a mating port on a charging seat housing; a conductive terminal, arranged in the mating end of the housing, for electrically contacting a charging terminal in the charging seat housing; a power transmission member, one end of which extends into the housing; and a fastener, arranged in the housing and passing through one end of the power transmission member and the conductive terminal. The fastener is suitable for being threadedly connected with a nut in the charging seat housing after the mating end of the housing is inserted into the mating port of the charging seat housing, so as to fasten the power transmission member, the conductive terminal and the charging terminal together.

[0058] According to another general technical concept of the utility model, a charging seat assembly is provided. The charging seat assembly includes: a charging seat and the aforementioned electrical connection assembly. The charging seat includes: a charging seat housing, formed with a mating port; a charging terminal, disposed in the charging seat housing; and a nut, disposed in the charging seat housing. The mating end of the housing of the electrical connection assembly is mated to the mating port of the charging seat housing, and the fastener of the electrical connection assembly is threadedly connected to the nut in the charging seat housing to fasten the power transmission member, the conductive terminal and the charging terminal together.

[0059] According to an overall technical concept of the utility model, a charging seat shell is provided. The charging seat shell includes: a mating port, which is used to mate with the mating end of the shell of the electrical connection component. The mating port has a trumpet-shaped inlet opening outward and a cylindrical inner cavity, and the trumpet-shaped inlet is used to guide the mating end of the shell of the electrical connection component to be inserted into the cylindrical inner cavity of the mating port.

[0060] According to another general technical concept of the utility model, a charging stand is provided. The charging stand comprises: the aforementioned charging stand housing; a charging terminal, which is arranged in the charging stand housing and is used to electrically contact with a conductive terminal of an electrical connection assembly; and a nut, which is arranged in the charging stand housing and is fixed to one end of the charging terminal. The nut is used to be threadedly connected with a fastener of the electrical connection assembly to fasten the charging terminal and the conductive terminal together.

[0061] According to another general technical concept of the utility model, a charging seat assembly is provided. The charging seat assembly includes: the aforementioned charging seat and an electrical connection assembly. The electrical connection assembly includes: a housing having a mating end suitable for being inserted into a mating port of a charging seat housing; a conductive terminal, disposed in the mating end of the housing, for electrically contacting a charging terminal in the housing of the charging seat; a power transmission member, one end of which extends into the housing; and a fastener, disposed in the housing and passing through the power transmission member and the conductive terminal, the fastener being threadedly connected to a nut in the housing of the charging seat after the mating end of the housing is inserted into the mating port of the housing of the charging seat, so as to fasten the conductive terminal and the charging terminal together.

[0062] According to another general technical concept of the utility model, a fastener is provided, which is used to fasten a power transmission member of an electrical connection assembly to a charging terminal of a charging station. A locking feature suitable for engaging with a housing of the electrical connection assembly is formed on the fastener. When the fastener is pre-installed in the housing, the locking feature engages with the housing so that the fastener is locked in a pre-installed position to prevent the fastener from being separated from the housing.

[0063] According to another general technical concept of the utility model, an electrical connection assembly is provided. The electrical connection assembly includes: a housing having a mating end suitable for being inserted into a mating port on a charging seat housing; a conductive terminal arranged in the mating end of the housing for electrically contacting a charging terminal in the charging seat housing; a power transmission member, one end of which extends into the housing; and the aforementioned fastener, which is arranged in the housing and passes through one end of the power transmission member and the conductive terminal. The fastener is suitable for being threadedly connected with a nut in the charging seat housing to fasten the power transmission member, the conductive terminal and the charging terminal together.

[0064] According to another general technical concept of the utility model, a charging seat assembly is provided. The charging seat assembly includes: a charging seat and the aforementioned electrical connection assembly. The charging seat includes: a charging seat housing, formed with a mating port; a charging terminal, disposed in the charging seat housing; and a nut, disposed in the charging seat housing. The mating end of the housing of the electrical connection assembly is mated to the mating port of the charging seat housing, and the fastener of the electrical connection assembly is threadedly connected to the nut in the charging seat housing to fasten the power transmission member, the conductive terminal and the charging terminal together.

[0065] Figure 1 A three-dimensional schematic diagram showing an electrical connection assembly 1 according to an exemplary embodiment of the utility model; Figure 2 A cross-sectional view showing an electrical connection assembly 1 according to an exemplary embodiment of the present utility model when viewed from above; Figure 3 A cross-sectional view showing an electrical connection assembly 1 according to an exemplary embodiment of the present utility model when viewed from below; Figure 4 An exploded schematic diagram showing an electrical connection assembly 1 according to an exemplary embodiment of the present utility model; Figure 5 A three-dimensional schematic diagram showing a power transmission member 15 of an electrical connection assembly 1 according to an exemplary embodiment of the present utility model; Figure 6 An exploded schematic diagram showing an electrical connection assembly 1 and a charging stand 2 according to an exemplary embodiment of the present utility model; Figure 7 A schematic diagram showing an electrical connection assembly 1 and a charging station 2 according to an exemplary embodiment of the present invention, wherein the mating end 11 of the electrical connection assembly 1 is inserted into the mating port 21 of the charging station housing 20 but the fastener 14 has not yet been connected to the nut 23 in the charging station housing 20; Figure 8 A schematic diagram showing an electrical connection assembly 1 and a charging station 2 according to an exemplary embodiment of the present invention, wherein the fastener 14 of the electrical connection assembly 1 has been connected to a nut 23 in a housing 20 of the charging station; Fig. 9 A schematic diagram showing electrical connection between the power transmission member 15 of the electrical connection assembly 1 and the charging terminal 22 of the charging stand 2 according to an exemplary embodiment of the present utility model; Fig.10 A three-dimensional schematic diagram showing an electrical connection assembly 1 and a charging stand 2 according to an exemplary embodiment of the utility model when viewed from below; Fig.11 A partially enlarged schematic diagram showing a charging stand 2 according to an exemplary embodiment of the utility model; Fig.12 A cross-sectional view showing an electrical connection assembly 1 according to an exemplary embodiment of the present invention, wherein the fastener 14 is pre-installed in the housing 10 and locked in a pre-installed position; Fig.13 A three-dimensional schematic diagram showing a fastener 14 of an electrical connection assembly 1 according to an exemplary embodiment of the utility model; Fig.14 A three-dimensional schematic diagram showing a housing 10 of an electrical connection assembly 1 according to an exemplary embodiment of the present utility model; Fig.15 A cross-sectional view showing an electrical connection assembly 1 according to another exemplary embodiment of the present invention, wherein a fastener 14 is pre-installed in the housing 10 and locked in a pre-installed position; Fig.16 A cross-sectional view of an electrical connection assembly 1 according to another exemplary embodiment of the present invention is shown, wherein a disassembly tool 140 is engaged with a fastener 14 .

[0066] like Figures 1 to 16As shown, in an exemplary embodiment of the utility model, an electrical connection assembly 1 is disclosed. The electrical connection assembly 1 includes: a housing 10, a conductive terminal 13, a power transmission member 15 and a fastener 14. The housing 10 has a mating end 11 suitable for being inserted into a mating port 21 on a charging seat housing 20. The conductive terminal 13 is arranged in the mating end 11 of the housing 10 for electrically contacting a charging terminal 22 in the charging seat housing 20. One end of the power transmission member 15 extends into the housing 10. The fastener 14 is arranged in the housing 10 and passes through one end of the power transmission member 15 and the conductive terminal 13. The fastener 14 is suitable for being threadedly connected with a nut 23 in the charging seat housing 20 after the mating end 11 of the housing 10 is inserted into the mating port 21 of the charging seat housing 20, so as to fasten the power transmission member 15, the conductive terminal 13 and the charging terminal 22 together.

[0067] like Figures 1 to 16 As shown, in the illustrated embodiment, the housing 10 has a top wall and a bottom wall that are opposite to each other in the axial direction of the mating end 11 , and the mating end 11 is columnar and protrudes from the top wall of the housing 10 .

[0068] like Figures 1 to 16 As shown, in the illustrated embodiment, the electrical connection assembly further includes a sealing ring 11a, which is sleeved on the mating end 11 and is suitable for being radially squeezed between the outer circumference of the mating end 11 and the inner circumference of the mating port 21 to achieve sealing therebetween.

[0069] like Figures 1 to 16 As shown, in the illustrated embodiment, an annular sealing ring installation groove is formed on the outer circumferential surface of the mating end 11, and the sealing ring 11a is installed in the sealing ring installation groove.

[0070] like Figures 1 to 16 As shown, in the illustrated embodiment, the housing 10 also has a mounting end 12 axially opposite to the mating end 11 , the mounting end 12 is columnar and protrudes from the bottom wall of the housing 10 , and the mounting end 12 has a mounting port 102 that allows the fastener 14 to enter the housing 10 .

[0071] like Figures 1 to 16 As shown, in the illustrated embodiment, the fastener 14 is pre-installed in the housing 10 via the installation port 102 , and a locking structure for locking the fastener 14 in a pre-installed position is formed on the installation end 12 and the fastener 14 to prevent the fastener 14 from being separated from the housing 10 .

[0072] like Figures 1 to 16As shown, in the illustrated embodiment, the locking structure includes an elastic buckle 120 and an annular groove 14b. The elastic buckle 120 is formed in the mounting port 102 of the mounting end 12. The annular groove 14b is formed on the outer peripheral surface of one end of the fastener 14. The elastic buckle 120 includes an elastic arm 120a connected to the peripheral wall of the mounting end 12 and a protrusion 120b formed on the end of the elastic arm 120a, and the protrusion 120b is suitable for engaging with the annular groove 14b to lock the fastener 14 in the pre-installed position.

[0073] like Figures 1 to 16 As shown, in the illustrated embodiment, the fastener 14 includes: a bolt 141 and an insulator 142. The bolt 141 is used to be threadedly connected with the nut 23 in the charging seat housing 20. The insulator 142 is engaged to the end of the bolt 141 and is used to electrically isolate the bolt 141 from a bolt operating tool for operating the bolt 141. An annular groove 14b is formed on the outer peripheral surface of the insulator 142 of the fastener 14.

[0074] like Figures 1 to 16 As shown, in the illustrated embodiment, the bolt 141 has a stud portion 141a at one end thereof and a flange portion 141b and a head portion 141c at the other end, and the insulator 142 is coupled to the flange portion 141b and the head portion 141c of the bolt 141. The stud portion 141a of the bolt 141 is used for threaded connection with the nut 23, and the flange portion 141b of the bolt 141 is used to abut against one end of the power transmission member 15.

[0075] like Figures 1 to 16 As shown, in the illustrated embodiment, the insulator 142 has an engagement portion 142c for engaging with a bolt operating tool, the engagement portion 142c engages with the head 141c of the bolt 141, and the cross-sections of the engagement portion 142c and the head 141c of the bolt 141 are non-circular.

[0076] like Figures 1 to 16 As shown, in the illustrated embodiment, the insulator 142 further includes a cylindrical portion 142a and a bottom wall portion 142b connected between the cylindrical portion 142a and the bottom of the engaging portion 142c, and the bottom wall portion 142b is engaged with the flange portion 141b of the bolt 141. An annular groove 14b is formed on the outer peripheral surface of the cylindrical portion 142a of the insulator 142.

[0077] like Figures 1 to 16 As shown, in the illustrated embodiment, the electrical connection assembly 1 further includes a sealing ring 14a, which is sleeved on the cylindrical portion 142a of the insulator 142 and radially squeezed between the outer circumference of the cylindrical portion 142a and the inner circumference of the mounting end 12 to achieve sealing therebetween.

[0078] like Figures 1 to 16As shown, in the illustrated embodiment, a seal ring mounting groove (14c) is formed on the outer peripheral surface of the cylindrical portion 142a of the insulator 142, and the seal ring 14a is installed in the seal ring mounting groove (14c).

[0079] like Figures 1 to 16 As shown, in the illustrated embodiment, the insulator 142 is an injection-molded part formed on the bolt 141 by insert injection molding, so that the bolt 141 and the insulator 142 become an integral part.

[0080] like Figures 1 to 16 As shown, in the illustrated embodiment, one end of the conductive terminal 13 protrudes from the opening of the mating end 11, and a flat contact end surface 13a is formed on one end of the conductive terminal 13, and the contact end surface 13a is perpendicular to the axial direction of the conductive terminal 13 and is used for electrical contact with the charging terminal 22.

[0081] like Figures 1 to 16 As shown, in the illustrated embodiment, the electrical connection assembly 1 also includes a connection terminal 16, which is electrically connected to one end of the power transmission member 15 and is suitable for electrically contacting the end surface of the other end of the conductive terminal 13, for electrically connecting one end of the power transmission member 15 to the conductive terminal 13.

[0082] like Figures 1 to 16 As shown, in the illustrated embodiment, a positioning flange 13b is formed at the other end of the conductive terminal 13, and a positioning step 10d is formed in the housing 10. The positioning flange 13b is clamped between the connecting terminal 16 and the positioning step 10d of the housing 10 to position the conductive terminal 13 at a predetermined installation position.

[0083] like Figures 1 to 16 As shown, in the illustrated embodiment, the power transmission member 15 includes a flat aluminum bar 15a and an outer insulating layer 15b covering the aluminum bar 15a, one end of the aluminum bar 15a is exposed from the outer insulating layer 15b, and the connecting terminal 16 is riveted or welded to one end of the aluminum bar 15a, and the connecting terminal 16 and the conductive terminal 13 are both copper parts.

[0084] like Figures 1 to 16 As shown, in the illustrated embodiment, through holes allowing fasteners 14 to pass through are respectively formed on one end of the aluminum bar 15a, the connecting terminal 16 and the conductive terminal 13. The fasteners 14 are used to fasten the connecting terminal 16, the conductive terminal 13 and the charging terminal 22 together so that reliable electrical contact is achieved among the three.

[0085] like Figures 1 to 16As shown, in the illustrated embodiment, the housing 10 has a front end and a rear port 101 opposite to each other in the longitudinal direction thereof, and one end of the power transmission member 15 is inserted into the housing 10 via the rear port 101. The longitudinal direction of the housing 10 is perpendicular to the axial direction of the mating end 11, and the mating end 11 is located at a corner of the front end of the housing 10.

[0086] like Figures 1 to 16 As shown, in the illustrated embodiment, the electrical connection assembly 1 further comprises a sealing sleeve 18, which is sleeved on the outer insulating layer 15b at one end of the power transmission member 15 and inserted into the rear port 101 of the housing 10. The sealing sleeve 18 is squeezed between the outer insulating layer 15b of the power transmission member 15 and the inner wall surface of the rear port 101 of the housing 10 to seal the rear port 101.

[0087] like Figures 1 to 16 As shown, in the illustrated embodiment, the electrical connection assembly 1 also includes a rear end cover 17, which is mounted on the outer insulating layer 15b at one end of the power transmission component 15 and is snapped 17c to the rear end of the housing 10, for fixing the power transmission component 15 to the rear end of the housing 10.

[0088] like Figures 1 to 16 As shown, in the illustrated embodiment, the rear end cover 17 includes: a front barrel portion 171, a rear barrel portion 172 and a connecting wall 173. The front barrel portion 171 is suitable for being mounted on the rear end of the housing 10. The rear barrel portion 172 is suitable for being mounted on the outer insulating layer 15b at one end of the power transmission member 15. The connecting wall 173 is connected between the rear end of the front barrel portion 171 and the front end of the rear barrel portion 172. A buckle 17c is formed on the front barrel portion 171, and a protrusion 10c is formed on the outer wall surface of the rear end of the housing 10, and the protrusion 10c is engaged in the clamping groove of the buckle 17c.

[0089] like Figures 1 to 16 As shown, in the illustrated embodiment, a step portion 10b is formed in the rear port 101 of the housing 10, and the step portion 10b and the connecting wall 173 respectively abut against the front and rear ends of the sealing sleeve 18 to position the sealing sleeve 18 in the rear port 101 of the housing 10.

[0090] like Figures 1 to 16As shown, in another exemplary embodiment of the utility model, a charging seat assembly is also disclosed. The charging seat assembly includes: a charging seat 2 and an electrical connection assembly 1. The charging seat 2 includes: a charging seat housing 20, a charging terminal 22 and a nut 23. The charging seat housing 20 is formed with a mating port 21. The charging terminal 22 is arranged in the charging seat housing 20. The nut 23 is arranged in the charging seat housing 20. The mating end 11 of the housing 10 of the electrical connection assembly 1 is mated to the mating port 21 of the charging seat housing 20, and the fastener 14 of the electrical connection assembly 1 is threadedly connected with the nut 23 in the charging seat housing 20 to fasten the power transmission member 15, the conductive terminal 13 and the charging terminal 22 together.

[0091] like Figures 1 to 16 As shown, in the illustrated embodiment, the charging base 2 includes two charging terminals 22, the charging base housing 20 has two mating ports 21, and the charging base assembly includes two electrical connection assemblies 1. The mating ends 11 of the housings 10 of the two electrical connection assemblies are respectively inserted into the two mating ports 21 of the charging base housing 20, and the power transmission members 15 of the two electrical connection assemblies are respectively electrically connected to the two charging terminals 22.

[0092] like Figures 1 to 16 As shown, in the illustrated embodiment, the charging base assembly further includes a mounting bracket 30, which is suitable for being fixed to the body sheet metal. The charging base housing 20 is mounted on the mounting bracket 30, so that the charging base 2 can be fixed to the body sheet metal through the mounting bracket 30.

[0093] like Figures 1 to 16 As shown, in another exemplary embodiment of the utility model, a charging base housing 20 is also disclosed. The charging base housing 20 includes a mating port 21, and the mating port 21 is used to mate with the mating end 11 of the housing 10 of the electrical connection assembly. The mating port 21 has a trumpet-shaped inlet 211 opened outward and a cylindrical inner cavity 212, and the trumpet-shaped inlet 211 is used to guide the mating end 11 of the housing 10 of the electrical connection assembly 1 to be inserted into the cylindrical inner cavity 212 of the mating port 21.

[0094] like Figures 1 to 16 As shown, in the illustrated embodiment, guiding slopes 21a, 21b are formed on the inner side of the trumpet-shaped inlet 211, and the guiding slopes 21a, 21b are inclined at a predetermined angle relative to the axial direction of the mating port 21 to guide the mating end 11 of the housing 10 of the electrical connection assembly 1 to be inserted into the cylindrical inner cavity 212 of the mating port 21.

[0095] like Figures 1 to 16As shown, in the illustrated embodiment, a first guiding slope 21a and a second guiding slope 21b are formed on the inner side of the trumpet-shaped inlet 211, the first guiding slope 21a extends inward from the outer end surface 21d of the mating port 21, and the second guiding slope 21b is located between the first guiding slope 21a and the inner circumferential surface 21c of the cylindrical inner cavity 212. The first guiding slope 21a is inclined at a first angle relative to the axial direction of the mating port 21, and the second guiding slope 21b is inclined at a second angle relative to the axial direction of the mating port 21, and the first angle is smaller than the second angle.

[0096] like Figures 1 to 16 As shown, in the illustrated embodiment, first transition surfaces 21f and 21e connecting the first guiding inclined surface 21a and the second guiding inclined surface 21b are further formed on the inner side of the trumpet-shaped inlet 211 .

[0097] like Figures 1 to 16 As shown, in the illustrated embodiment, the first transition surfaces 21f, 21e include: a cylindrical transition surface 21f and an arcuate transition surface 21e. The cylindrical transition surface 21f extends inwardly from the first guide inclined surface 21a along the axial direction of the mating port 21. The arcuate transition surface 21e is connected between the cylindrical transition surface 21f and the second guide inclined surface 21b.

[0098] like Figures 1 to 16 As shown, in the illustrated embodiment, a second transition surface 21g connecting the second guide slope 21b and the inner circumferential surface 21c of the cylindrical inner cavity 212 is further formed on the inner side of the trumpet-shaped inlet 211, and the second transition surface 21g is an arcuate transition surface.

[0099] like Figures 1 to 16 As shown, in the illustrated embodiment, the inner diameter of the cylindrical inner cavity 212 of the mating port 21 is equal to the outer diameter of the mating end 11 of the housing 10 and is smaller than the outer diameter of the sealing ring 11a mounted on the mating end 11, so that the sealing ring 11a is radially squeezed between the inner circumferential surface 21c of the cylindrical inner cavity 212 of the mating port 21 and the outer circumferential surface of the mating end 11.

[0100] like Figures 1 to 16 As shown, in the illustrated embodiment, an annular step 213 is formed in the mating port 21 , and the annular step 213 is used to axially abut against the end surface of the mating end 11 of the housing 10 to axially position the mating end 11 of the housing 10 .

[0101] like Figures 1 to 16As shown, in another exemplary embodiment of the utility model, a charging stand 2 is also disclosed. The charging stand 2 includes: a charging stand housing 20, a charging terminal 22 and a nut 23. The charging terminal 22 is arranged in the charging stand housing 20, and is used to make electrical contact with the conductive terminal 13 of the electrical connection assembly 1. The nut 23 is arranged in the charging stand housing 20 and is fixed to one end of the charging terminal 22. The nut 23 is used to be threadedly connected with the fastener 14 of the electrical connection assembly 1 to fasten the charging terminal 22 and the conductive terminal 13 together.

[0102] like Figures 1 to 16 As shown, in the illustrated embodiment, the charging stand 2 further includes a terminal retaining body 24, which is installed in the charging stand housing 20 and is used to retain the charging terminal 22. One end of the nut 23 is riveted or welded to one end of the charging terminal 22, and the other end of the nut 23 is pressed against the terminal retaining body 24.

[0103] like Figures 1 to 16 As shown, in the illustrated embodiment, a through hole communicating with the threaded hole of the nut 23 is formed on one end of the charging terminal 22 to allow the fastener 14 to pass through one end of the charging terminal 22 and be threadedly connected to the nut 23.

[0104] like Figures 1 to 16 As shown, in the illustrated embodiment, one end 221 of the charging terminal 22 is flat, suitable for electrically contacting the end surface of one end of the conductive terminal 13. The other end 222 of the charging terminal 22 is hollow cylindrical, suitable for mating with the mating charging terminal of the charging gun.

[0105] like Figures 1 to 16 As shown, in another exemplary embodiment of the utility model, a charging seat assembly is also disclosed. The charging seat assembly includes: a charging seat 2 and an electrical connection assembly 1. The electrical connection assembly 1 includes: a housing 10, a conductive terminal 13, a power transmission member 15 and a fastener 14. The housing 10 has a mating end 11 suitable for being inserted into a mating port 21 of a charging seat housing 20. The conductive terminal 13 is arranged in the mating end 11 of the housing 10 for electrically contacting a charging terminal 22 in the charging seat housing 20. One end of the power transmission member 15 extends into the housing 10. The fastener 14 is arranged in the housing 10 and passes through the power transmission member 15 and the conductive terminal 13. After the mating end 11 of the housing 10 is inserted into the mating port 21 of the charging seat housing 20, the fastener 14 is threadedly connected with a nut 23 in the charging seat housing 20 to fasten the conductive terminal 13 and the charging terminal 22 together.

[0106] like Figures 1 to 16As shown, in the illustrated embodiment, the charging base 2 includes two charging terminals 22, the charging base housing 20 has two mating ports 21, and the charging base assembly includes two electrical connection assemblies 1. The mating ends 11 of the housings 10 of the two electrical connection assemblies 1 are respectively inserted into the two mating ports 21 of the charging base housing 20, and the power transmission members 15 of the two electrical connection assemblies 1 are respectively electrically connected to the two charging terminals 22.

[0107] like Figures 1 to 16 As shown, in the illustrated embodiment, the electrical connection assembly 1 also includes a sealing ring 11a, which is sleeved on the mating end 11 and is suitable for being radially squeezed between the outer circumferential surface of the mating end 11 and the inner circumferential surface 21c of the cylindrical inner cavity 212 of the mating port 21 to achieve sealing therebetween.

[0108] like Figures 1 to 16 As shown, in the illustrated embodiment, an annular sealing ring installation groove is formed on the outer circumferential surface of the mating end 11, and the sealing ring 11a is installed in the sealing ring installation groove.

[0109] like Figures 1 to 16 As shown, in the illustrated embodiment, the charging base assembly further includes a mounting bracket 30, which is suitable for being fixed to the body sheet metal. The charging base housing 20 is mounted on the mounting bracket 30, so that the charging base 2 can be fixed to the body sheet metal through the mounting bracket 30.

[0110] like Figures 1 to 16 As shown, in another exemplary embodiment of the present invention, a fastener 14 is also disclosed. The fastener 14 is used to fasten the power transmission member 15 of the electrical connection assembly 1 to the charging terminal 22 of the charging base 2. A locking feature suitable for engaging with the housing 10 of the electrical connection assembly 1 is formed on the fastener 14. When the fastener 14 is pre-installed in the housing 10, the locking feature engages with the housing 10, so that the fastener 14 is locked in the pre-installed position to prevent the fastener 14 from being separated from the housing 10.

[0111] like Figures 1 to 16 As shown, in the illustrated embodiment, an engagement feature suitable for engaging with a removal tool 140 is formed on one end of the fastener 14 so that the fastener 14 pre-installed in the housing 10 can be pulled out from the housing 10 by the removal tool 140 engaged with the fastener 14 .

[0112] like Figures 1 to 16 As shown, in the illustrated embodiment, the locking feature includes an annular groove 14 b formed on one end of the fastener 14 , the annular groove 14 b being adapted to engage with a resilient buckle 120 within the housing 10 .

[0113] like Figures 1 to 16As shown, in the illustrated embodiment, the engagement feature includes a slot 104 formed on one end of the fastener 14 , the slot 104 being adapted to engage with a prong 140 b on a removal tool 140 .

[0114] like Figures 1 to 16 As shown, in the illustrated embodiment, the fastener 14 includes: a bolt 141 and an insulator 142. The bolt 141 is used to be threadedly connected to the nut 23 in the charging base 2. The insulator 142 is engaged to the end of the bolt 141, and is used to electrically isolate the bolt 141 from a bolt operating tool for operating the bolt 141. An annular groove 14b is formed on the outer peripheral surface of the insulator 142 of the fastener 14, and a slot 104 is formed on the insulator 142 of the fastener 14.

[0115] like Figures 1 to 16 As shown, in the illustrated embodiment, the bolt 141 has a stud portion 141a at one end thereof and a flange portion 141b and a head portion 141c at the other end, and the insulator 142 is coupled to the flange portion 141b and the head portion 141c of the bolt 141. The stud portion 141a of the bolt 141 is used for threaded connection with the nut 23, and the flange portion 141b of the bolt 141 is used to abut against one end of the power transmission member 15.

[0116] like Figures 1 to 16 As shown, in the illustrated embodiment, the insulator 142 has an engagement portion 142c for engaging with a bolt operating tool, the engagement portion 142c engages with the head 141c of the bolt 141, and the cross-sections of the engagement portion 142c and the head 141c of the bolt 141 are non-circular.

[0117] like Figures 1 to 16 As shown, in the illustrated embodiment, the insulator 142 further includes a cylindrical portion 142a and a bottom wall portion 142b connected between the cylindrical portion 142a and the bottom of the engaging portion 142c, and the bottom wall portion 142b is engaged with the flange portion 141b of the bolt 141. An annular groove 14b is formed on the outer peripheral surface of the cylindrical portion 142a of the insulator 142, and a slot 104 is formed on the cylindrical portion 142a of the insulator 142.

[0118] like Figures 1 to 16 As shown, in the illustrated embodiment, a pair of slots 104 are formed on the cylindrical portion 142 a of the insulator 142 , and the pair of slots 104 are opposite in the radial direction of the cylindrical portion 142 a for engaging with a pair of pins 140 b on the disassembly tool 140 .

[0119] like Figures 1 to 16As shown, in the illustrated embodiment, a sealing ring mounting groove 14c for mounting a sealing ring 14a is also formed on the outer peripheral surface of the cylindrical portion 142a of the insulator 142, so that sealing between the fastener 14 and the housing 10 can be achieved by the sealing ring 14a installed in the sealing ring mounting groove 14c.

[0120] like Figures 1 to 16 As shown, in the illustrated embodiment, the fastener 14 also includes a sealing ring 14a, which is installed in a sealing ring installation groove 14c of the cylindrical portion 142a and is suitable for being radially squeezed between the outer circumferential surface of the cylindrical portion 142a and the inner circumferential surface of the mounting end 12 of the housing 20 to achieve a seal therebetween.

[0121] like Figures 1 to 16 As shown, in the illustrated embodiment, the insulator 142 is an injection-molded part formed on the bolt 141 by insert injection molding, so that the bolt 141 and the insulator 142 become an integral part.

[0122] like Figures 1 to 16 As shown, in another exemplary embodiment of the utility model, an electrical connection assembly 1 is also disclosed. The electrical connection assembly 1 includes: a housing 10, a conductive terminal 13, a power transmission member 15 and the aforementioned fastener 14. The housing 10 has a mating end 11 suitable for being inserted into a mating port 21 on a charging seat housing 20. The conductive terminal 13 is arranged in the mating end 11 of the housing 10 for electrically contacting a charging terminal 22 in the charging seat housing 20. One end of the power transmission member 15 extends into the housing 10. The fastener 14 is arranged in the housing 10 and passes through one end of the power transmission member 15 and the conductive terminal 13. The fastener 14 is suitable for being threadedly connected to a nut 23 in the charging seat housing 20 to fasten the power transmission member 15, the conductive terminal 13 and the charging terminal 22 together.

[0123] like Figures 1 to 16 As shown, in the illustrated embodiment, the electrical connection assembly 1 further comprises a sealing ring 11a, which is sleeved on the mating end 11 and is adapted to be radially squeezed between the outer circumference of the mating end 11 and the inner circumference of the mating port 21 to achieve sealing therebetween.

[0124] like Figures 1 to 16 As shown, in the illustrated embodiment, the housing 10 also has a mounting end 12 axially opposite to the mating end 11, and the mounting end 12 has a mounting port 102 that allows the fastener 14 to enter the housing 10. The fastener 14 is pre-installed in the housing 10 via the mounting port 102 and is locked in a pre-installed position to prevent the fastener 14 from being separated from the housing 10.

[0125] like Figures 1 to 16As shown, in the illustrated embodiment, an elastic buckle 120 is formed in the mounting port 102 of the mounting end 12, and the elastic buckle 120 includes an elastic arm 120a connected to the peripheral wall of the mounting end 12 and a protrusion 120b formed on the end of the elastic arm 120a. The protrusion 120b of the elastic buckle 120 is suitable for engaging with the annular groove 14b on the fastener 14 to lock the fastener 14 in the pre-installed position.

[0126] like Figures 1 to 16 As shown, in the illustrated embodiment, a pair of elastic buckles 120 are formed in the mounting port 102 of the mounting end 12 , and the pair of elastic buckles 120 are opposite to each other in the radial direction of the mounting port 102 .

[0127] like Figures 1 to 16 As shown, in another exemplary embodiment of the utility model, a charging seat assembly is also disclosed. The charging seat assembly includes: a charging seat 2 and the aforementioned electrical connection assembly 1. The charging seat 2 includes: a charging seat housing 20, a charging terminal 22 and a nut 23. The charging seat housing 20 is formed with a mating port 21. The charging terminal 22 is arranged in the charging seat housing 20. The nut 23 is arranged in the charging seat housing 20. The mating end 11 of the housing 10 of the electrical connection assembly 1 is mated to the mating port 21 of the charging seat housing 20, and the fastener 14 of the electrical connection assembly 1 is threadedly connected with the nut 23 in the charging seat housing 20 to fasten the power transmission member 15, the conductive terminal 13 and the charging terminal 22 together.

[0128] like Figures 1 to 16 As shown, in the illustrated embodiment, the charging base 2 includes two charging terminals 22, the charging base housing 20 has two mating ports 21, and the charging base assembly includes two electrical connection assemblies 1. The mating ends 11 of the housings 10 of the two electrical connection assemblies are respectively inserted into the two mating ports 21 of the charging base housing 20, and the power transmission members 15 of the two electrical connection assemblies are respectively electrically connected to the two charging terminals 22.

[0129] like Figures 1 to 16 As shown, in the illustrated embodiment, the charging base assembly further includes a mounting bracket 30, which is suitable for being fixed to a body sheet metal (not shown). The charging base housing 20 is mounted on the mounting bracket 30, so that the charging base 2 can be fixed to the body sheet metal through the mounting bracket 30.

[0130] Those skilled in the art will appreciate that the embodiments described above are exemplary and can be improved upon by those skilled in the art. The structures described in the various embodiments can be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present utility model.

[0131] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementation modes of the present invention and should not be construed as limiting the present invention.

[0132] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined by the claims and their equivalents.

[0133] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element number of the claims should not be construed as limiting the scope of the present invention.

Claims

1. An electrical connection assembly, characterized in that: include: A housing (10) having a mating end (11) adapted to be inserted into a mating port (21) on a charging base housing (20); A conductive terminal (13) is disposed in the mating end (11) of the housing (10) and is used for electrically contacting a charging terminal (22) in the charging seat housing (20); A power transmission member (15), one end of which extends into the housing (10); and a fastener (14) disposed in the housing (10) and passing through one end of the power transmission member (15) and the conductive terminal (13), The fastener (14) is suitable for being threadedly connected with a nut (23) in the charging base shell (20) after the mating end (11) of the housing (10) is inserted into the mating port (21) of the charging base shell (20), so as to fasten the power transmission component (15), the conductive terminal (13) and the charging terminal (22) together.

2. The electrical connection assembly according to claim 1, characterized in that: The housing (10) has a top wall and a bottom wall which are opposite to each other in the axial direction of the mating end (11); the mating end (11) is columnar and protrudes from the top wall of the housing (10).

3. The electrical connection assembly according to claim 2, characterized in that: Also includes: The sealing ring (11a) is sleeved on the mating end (11) and is suitable for being radially pressed between the outer peripheral surface of the mating end (11) and the inner peripheral surface of the mating port (21) to achieve sealing between the two.

4. The electrical connection assembly according to claim 3, characterized in that: An annular sealing ring installation groove is formed on the outer peripheral surface of the mating end (11), and the sealing ring (11a) is installed in the sealing ring installation groove.

5. The electrical connection assembly according to claim 2, characterized in that: The housing (10) further comprises a mounting end (12) axially opposite to the mating end (11); the mounting end (12) is columnar and protrudes from the bottom wall of the housing (10); the mounting end (12) comprises a mounting port (102) for allowing the fastener (14) to enter the housing (10).

6. The electrical connection assembly according to claim 5, characterized in that: The fastener (14) is pre-installed in the housing (10) via the installation port (102), and a locking structure for locking the fastener (14) in a pre-installed position is formed on the installation end (12) and the fastener (14) to prevent the fastener (14) from being separated from the housing (10).

7. The electrical connection assembly according to claim 6, characterized in that: The locking structure comprises: a resilient buckle (120) formed in the mounting port (102) of the mounting end (12); and An annular groove (14b) is formed on the outer peripheral surface of one end of the fastener (14), and the elastic buckle (120) includes an elastic arm (120a) connected to the peripheral wall of the mounting end (12) and a protrusion (120b) formed on the end of the elastic arm (120a), and the protrusion (120b) is suitable for engaging with the annular groove (14b) to lock the fastener (14) in the pre-installed position.

8. The electrical connection assembly according to claim 7, characterized in that: The fastener (14) comprises: A bolt (141) for threaded connection with a nut (23) in the charging base housing (20); and An insulator (142) is joined to the end of the bolt (141) for electrically isolating the bolt (141) from a bolt operating tool for operating the bolt (141), and the annular groove (14b) is formed on the outer peripheral surface of the insulator (142) of the fastener (14).

9. The electrical connection assembly according to claim 8, characterized in that: The bolt (141) has a stud portion (141a) at one end thereof and a flange portion (141b) and a head portion (141c) at the other end thereof, and the insulator (142) is joined to the flange portion (141b) and the head portion (141c) of the bolt (141); The stud portion (141a) of the bolt (141) is used for threaded connection with the nut (23), and the flange portion (141b) of the bolt (141) is used for abutting against one end of the power transmission member (15).

10. The electrical connection assembly according to claim 9, characterized in that: The insulator (142) has an engaging portion (142c) for engaging with a bolt operating tool, the engaging portion (142c) engaging with a head (141c) of the bolt (141), and the cross-sections of the engaging portion (142c) and the head (141c) of the bolt (141) are non-circular.

11. The electrical connection assembly according to claim 10, characterized in that: The insulator (142) also has a cylindrical portion (142a) and a bottom wall portion (142b) connected between the cylindrical portion (142a) and the bottom of the joint portion (142c), the bottom wall portion (142b) being joined to the flange portion (141b) of the bolt (141), and the annular groove (14b) being formed on the outer peripheral surface of the cylindrical portion (142a) of the insulator (142).

12. The electrical connection assembly according to claim 11, characterized in that: Also includes: The sealing ring (14a) is sleeved on the cylindrical portion (142a) of the insulator (142) and is radially pressed between the outer circumference of the cylindrical portion (142a) and the inner circumference of the mounting end (12) to achieve sealing between the two.

13. The electrical connection assembly according to claim 12, characterized in that: A sealing ring installation groove (14c) is formed on the outer peripheral surface of the cylindrical portion (142a) of the insulator (142), and the sealing ring (14a) is installed in the sealing ring installation groove (14c).

14. The electrical connection assembly according to claim 8, characterized in that: The insulator (142) is an injection-molded part formed on the bolt (141) by insert injection molding, so that the bolt (141) and the insulator (142) become an integral part.

15. The electrical connection assembly according to claim 1, characterized in that: One end of the conductive terminal (13) protrudes from the opening of the mating end (11), and a flat contact end surface (13a) is formed on one end of the conductive terminal (13). The contact end surface (13a) is perpendicular to the axial direction of the conductive terminal (13) and is used for electrically contacting the charging terminal (22).

16. The electrical connection assembly according to claim 15, characterized in that: Also includes: A connecting terminal (16) is electrically connected to one end of the power transmission member (15) and is adapted to electrically contact an end surface of the other end of the conductive terminal (13), for electrically connecting one end of the power transmission member (15) to the conductive terminal (13).

17. The electrical connection assembly according to claim 16, characterized in that: A positioning flange (13b) is formed at the other end of the conductive terminal (13), and a positioning step (10d) is formed in the housing (10). The positioning flange (13b) is clamped between the connecting terminal (16) and the positioning step (10d) of the housing (10) to position the conductive terminal (13) at a predetermined installation position.

18. The electrical connection assembly according to claim 16, characterized in that: The power transmission member (15) comprises a flat aluminum bar (15a) and an outer insulating layer (15b) covering the aluminum bar (15a), one end of the aluminum bar (15a) is exposed from the outer insulating layer (15b), the connecting terminal (16) is riveted or welded to one end of the aluminum bar (15a), and the connecting terminal (16) and the conductive terminal (13) are both copper parts.

19. The electrical connection assembly according to claim 18, characterized in that: Through holes allowing the fastener (14) to pass through are respectively formed on one end of the aluminum bar (15a), the connecting terminal (16) and the conductive terminal (13); the fastener (14) is used to fasten the connecting terminal (16), the conductive terminal (13) and the charging terminal (22) together so that reliable electrical contact is achieved among the three.

20. The electrical connection assembly according to claim 2, characterized in that: The housing (10) has a front end and a rear port (101) opposite to each other in the longitudinal direction thereof, and one end of the power transmission member (15) is inserted into the housing (10) via the rear port (101); The longitudinal direction of the housing (10) is perpendicular to the axial direction of the mating end (11), and the mating end (11) is located at a corner of the front end of the housing (10).

21. The electrical connection assembly according to claim 20, characterized in that: Also includes: A sealing sleeve (18) is sleeved on the outer insulating layer (15b) of one end of the power transmission member (15) and inserted into the rear port (101) of the housing (10). The sealing sleeve (18) is pressed between the outer insulating layer (15b) of the power transmission member (15) and the inner wall surface of the rear port (101) of the housing (10) to seal the rear port (101).

22. The electrical connection assembly according to claim 21, characterized in that: Also includes: The rear end cover (17) is fitted onto the outer insulating layer (15b) at one end of the power transmission member (15) and is snapped (17c) onto the rear end of the housing (10) to fix the power transmission member (15) to the rear end of the housing (10).

23. The electrical connection assembly according to claim 22, characterized in that: The rear end cover (17) comprises: A front cylinder portion (171) adapted to be mounted on the rear end of the housing (10); A rear barrel (172) adapted to be mounted on the outer insulating layer (15b) at one end of the power transmission member (15); and A connecting wall (173) is connected between the rear end of the front tube part (171) and the front end of the rear tube part (172). A buckle (17c) is formed on the front tube portion (171), and a protrusion (10c) is formed on the outer wall surface of the rear end of the shell (10), and the protrusion (10c) is engaged in the slot of the buckle (17c).

24. The electrical connection assembly according to claim 23, characterized in that: A step portion (10b) is formed in the rear port (101) of the housing (10), and the step portion (10b) and the connecting wall (173) respectively abut against the front and rear ends of the sealing sleeve (18) to position the sealing sleeve (18) in the rear port (101) of the housing (10).

25. A charging base assembly, characterized in that: include: Charging station (2), including: A charging base housing (20) is formed with a mating port (21); A charging terminal (22) is disposed in the charging seat housing (20); and A nut (23) disposed in the charging base housing (20); and The electrical connection assembly (1) according to any one of claims 1 to 24, The mating end (11) of the housing (10) of the electrical connection component (1) is mated into the mating port (21) of the charging seat shell (20), and the fastener (14) of the electrical connection component (1) is threadedly connected to the nut (23) in the charging seat shell (20) to fasten the power transmission component (15), the conductive terminal (13) and the charging terminal (22) together.

26. The charging base assembly according to claim 25, characterized in that: The charging base (2) comprises two charging terminals (22), the charging base housing (20) has two mating ports (21), and the charging base assembly comprises two electrical connection assemblies (1); The mating ends (11) of the housings (10) of the two electrical connection components are respectively inserted into the two mating ports (21) of the charging seat housing (20), and the power transmission components (15) of the two electrical connection components are respectively electrically connected to the two charging terminals (22).

27. The charging base assembly according to claim 25, characterized in that: Also includes: A mounting bracket (30) adapted to be fixed to a vehicle body sheet metal, The charging seat shell (20) is mounted on the mounting bracket (30), so that the charging seat (2) can be fixed to the vehicle body sheet metal through the mounting bracket (30).

Images