Terminal body, terminal assembly and charging device

Abstract

The invention discloses a terminal body, a terminal assembly and a charging device. The terminal body includes: a cylindrical portion having a front end and a rear end opposite to each other in an axial direction thereof; and the welding part is connected with the rear end of the cylindrical part. The cylindrical part is provided with an inner cavity allowing a matching terminal to be inserted, the welding part is used for being welded to a cable, and the terminal body is an integrated punch forming piece manufactured by punching a single metal plate. Therefore, the manufacturing cost can be greatly reduced, the production cycle can be shortened, the production efficiency can be improved, and the competitiveness of products in the market can be greatly improved.

Description

Technical Field

[0001] The present invention relates to a terminal body, a terminal assembly including the terminal body, and a charging device including the terminal assembly. Background Art

[0002] In order to charge the battery on a new energy vehicle, a charging seat adapted to be mated with a charging gun is usually installed on the new energy vehicle. In the prior art, a female charging terminal is usually provided in the charging seat, and a male charging terminal adapted to be mated with the female charging terminal in the charging seat is provided in the charging gun. The female charging terminal generally includes a cylindrical terminal body, a cage-shaped elastic contact member inserted into the inner cavity of the terminal body, and a welding tail connected to the rear end of the terminal body. In the prior art, the terminal body of the female charging terminal is made by machining or stamping a copper tube, with a long processing cycle, low efficiency, and high cost, and has no excessive advantages under the increasingly fierce market competition. Summary of the Invention

[0003] The object of the present invention aims to solve at least one of the above problems and defects existing in the prior art.

[0004] According to one aspect of the present invention, there is provided a terminal body. The terminal body includes: a cylindrical portion having a front end and a rear end opposite to each other in its axial direction; and a welding portion connected to the rear end of the cylindrical portion. The cylindrical portion has an inner cavity allowing a mating terminal to be inserted, the welding portion is used for welding to a cable, and the terminal body is an integrally stamped forming part made by stamping a single sheet of metal plate.

[0005] According to an exemplary embodiment of the present invention, the terminal body further includes: a connecting portion connected between the cylindrical portion and the welding portion, the connecting portion being bent into a predetermined shape, and the welding portion being flat.

[0006] According to another exemplary embodiment of the present invention, an opening allowing an injection molding material to enter the inner cavity of the cylindrical portion is formed on the cylindrical portion, so that the inner cavity of the cylindrical portion can be divided into a front cavity and a rear cavity by a seal formed by the injection molding material.

[0007] According to another exemplary embodiment of the present invention, the opening is arc-shaped and extends along the circumferential direction of the cylindrical portion, and a pair of the openings are formed on the cylindrical portion, and the pair of openings are spaced apart in the axial direction of the cylindrical portion.

[0008] According to another exemplary embodiment of the present invention, the cylindrical portion has an arc-shaped bridge portion located between the pair of openings, and the arc-shaped bridge portion is used for being embedded into the seal to engage with the seal.

[0009] According to another exemplary embodiment of the present invention, an engaging area for engaging with the seal is provided on the inner circumferential surface of the cylindrical portion, and rolling patterns are formed on the engaging area of the inner circumferential surface of the cylindrical portion to increase the engaging strength between the inner circumferential surface of the cylindrical portion and the seal.

[0010] According to another exemplary embodiment of the present invention, a plurality of first positioning protrusions and a plurality of second positioning protrusions are formed on the inner circumferential surface of the front cavity of the cylindrical portion. The plurality of first positioning protrusions are spaced apart in the circumferential direction of the cylindrical portion, and the plurality of second positioning protrusions are spaced apart in the circumferential direction of the cylindrical portion; the first positioning protrusion and the second positioning protrusion are axially spaced apart and opposite to each other and are adapted to respectively abut against the front end and the rear end of the elastic contact member inserted into the front cavity of the cylindrical portion to axially position the elastic contact member.

[0011] According to another exemplary embodiment of the present invention, a drain hole is formed on the peripheral wall of the front cavity of the cylindrical portion, so that the water entering the front cavity of the cylindrical portion can be discharged through the drain hole.

[0012] According to another exemplary embodiment of the present invention, the cylindrical portion has a pair of side portions spliced together. A plurality of engaging grooves are formed on one of the pair of side portions, and a plurality of engaging protrusions are formed on the other; the plurality of engaging grooves are spaced apart in the axial direction of the cylindrical portion, and the plurality of engaging protrusions are spaced apart in the axial direction of the cylindrical portion and are respectively engaged with the plurality of engaging grooves to splice the pair of side portions of the cylindrical portion together.

[0013] According to another exemplary embodiment of the present invention, the engaging groove and the engaging protrusion are in an Ω shape or a dovetail shape.

[0014] According to another aspect of the present invention, a terminal assembly is provided. The terminal assembly includes: the aforementioned terminal body; and a seal directly injection-molded onto the cylindrical portion of the terminal body such that the two become an integral part. The seal enters the inner cavity of the cylindrical portion through an opening on the cylindrical portion and engages with the peripheral wall of the cylindrical portion to divide the inner cavity of the cylindrical portion into a front cavity and a rear cavity, so that the water vapor and dust entering the front cavity cannot enter the rear cavity.

[0015] According to an exemplary embodiment of the present invention, the seal includes: a main body portion, which is disk-shaped and engages with the outer peripheral surface and the inner peripheral surface of the peripheral wall of the cylindrical portion; and a sealing flange formed on the outer peripheral surface of the main body portion. The sealing flange is adapted to be squeezed between the cylindrical portion and the inner wall surface of the terminal jack of the housing of the charging device to achieve sealing therebetween.

[0016] According to another exemplary embodiment of the present invention, the seal further includes: a pair of arc-shaped reinforcing ribs respectively formed on the front and rear sides of the main body portion, and the pair of arc-shaped reinforcing ribs are respectively radially opposite to a pair of openings on the cylindrical portion and are joined to the peripheral wall of the cylindrical portion to enhance the joining strength between the seal and the cylindrical portion.

[0017] According to another exemplary embodiment of the present invention, the terminal assembly further includes: an elastic contact member inserted into the front cavity of the cylindrical portion and in electrical contact with the inner wall surface of the cylindrical portion. The elastic contact member is an integrally stamped part and is used for electrical contact with a mating terminal inserted into the front cavity of the cylindrical portion.

[0018] According to another exemplary embodiment of the present invention, the elastic contact member includes: a pair of annular ends; and a plurality of elastic arm portions connected between the pair of annular ends. The plurality of elastic arm portions are spaced apart in the circumferential direction of the annular ends and are used for electrical contact with the outer peripheral surface of the inserted mating terminal.

[0019] According to another exemplary embodiment of the present invention, the annular end is C-shaped, so that the annular end can be elastically deformed in the radial direction.

[0020] According to another exemplary embodiment of the present invention, a plurality of contact protrusions are formed on the outer peripheral surface of the annular end, and the plurality of contact protrusions are spaced apart and distributed on the entire outer peripheral surface of the annular end for electrical contact with the inner wall surface of the cylindrical portion.

[0021] According to another exemplary embodiment of the present invention, the pair of annular ends includes: a first annular end close to the front port of the cylindrical portion; and a second annular end axially opposite to the first annular end. The first positioning protrusion and the second positioning protrusion of the cylindrical portion are adapted to respectively abut against the end faces of the first annular end and the second annular end of the elastic contact member to axially position the elastic contact member.

[0022] According to another exemplary embodiment of the present invention, the terminal assembly further includes: a cable having a conductor end, and the welding portion of the terminal body and the conductor end of the cable are both flat and welded together.

[0023] According to another aspect of the present invention, a charging device is provided. The charging device includes: a housing formed with a terminal jack; and the aforementioned terminal assembly inserted into the terminal jack. The terminal assembly is used for electrical contact with a mating terminal of a mating charging device inserted into the terminal jack to electrically connect the charging device and the mating charging device.

[0024] According to an exemplary embodiment of the present invention, the charging device is a charging stand or a charging gun that mates with the charging stand.

[0025] In each of the foregoing exemplary embodiments of the present invention, the terminal body is an integrally stamping formed part made by stamping a single metal sheet. Therefore, the present invention can greatly reduce the manufacturing cost, shorten the production cycle, improve the production efficiency, and greatly enhance the competitiveness of the product in the market.

[0026] Other objects and advantages of the present invention will become apparent and help to provide a comprehensive understanding of the present invention through the description of the present invention with reference to the accompanying drawings below. Description of the Drawings

[0027] Figure 1 A perspective schematic view showing the terminal assembly according to an exemplary embodiment of the present invention when viewed from the rear side;

[0028] Figure 2 A perspective schematic view showing the terminal assembly according to an exemplary embodiment of the present invention when viewed from the front side;

[0029] Figure 3 An axial sectional view showing the terminal assembly according to an exemplary embodiment of the present invention;

[0030] Figure 4 An exploded schematic view showing the terminal assembly according to an exemplary embodiment of the present invention;

[0031] Figure 5 A perspective schematic view showing the terminal body of the terminal assembly according to an exemplary embodiment of the present invention;

[0032] Figure 6 An axial sectional view showing the terminal body of the terminal assembly according to an exemplary embodiment of the present invention;

[0033] Figure 7 A schematic view showing the terminal assembly according to an exemplary embodiment of the present invention inserted into a terminal socket. Detailed Description of the Invention

[0034] The technical solutions of the present invention will be further specifically described below through embodiments in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The description of the embodiments of the present invention with reference to the accompanying drawings below is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0035] In addition, in the following detailed description, for the sake of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. However, it is obvious that one or more embodiments may be implemented without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form in order to simplify the drawings.

[0036] According to an overall technical concept of the present invention, there is provided a terminal body. The terminal body includes: a cylindrical portion having a front end and a rear end opposite to each other in its axial direction; and a welding portion connected to the rear end of the cylindrical portion. The cylindrical portion has an inner cavity allowing a mating terminal to be inserted, and the welding portion is for welding to a cable. The terminal body is an integrally stamped part made by stamping a single sheet of metal plate.

[0037] According to another overall technical concept of the present invention, there is provided a terminal assembly. The terminal assembly includes: the aforementioned terminal body; and a seal directly injection-molded onto the cylindrical portion of the terminal body such that the two become an integral part. The seal enters the inner cavity of the cylindrical portion through an opening on the cylindrical portion and engages with the peripheral wall of the cylindrical portion to divide the inner cavity of the cylindrical portion into a front cavity and a rear cavity, so that moisture and dust entering the front cavity cannot enter the rear cavity.

[0038] According to another overall technical concept of the present invention, there is provided a charging device. The charging device includes: a housing formed with a terminal jack; and the aforementioned terminal assembly inserted into the terminal jack. The terminal assembly is for making electrical contact with a mating terminal of a mating charging device inserted into the terminal jack to electrically connect the charging device and the mating charging device.

[0039] Figure 1 Showing a perspective schematic view of a terminal assembly according to an exemplary embodiment of the present invention when viewed from the rear side; Figure 2 Showing a perspective schematic view of a terminal assembly according to an exemplary embodiment of the present invention when viewed from the front side; Figure 3 Showing an axial sectional view of a terminal assembly according to an exemplary embodiment of the present invention; Figure 4 Showing an exploded schematic view of a terminal assembly according to an exemplary embodiment of the present invention; Figure 5 Showing a perspective schematic view of the terminal body 1 of a terminal assembly according to an exemplary embodiment of the present invention; Figure 6 Showing an axial sectional view of the terminal body 1 of a terminal assembly according to an exemplary embodiment of the present invention.

[0040] As Figures 1 to 6As shown, in an exemplary embodiment of the present invention, a terminal body 1 is disclosed. The terminal body 1 mainly includes a cylindrical portion 10 and a welding portion 11. The cylindrical portion 10 has a front end and a rear end that are opposite to each other in its axial direction. The welding portion 11 is connected to the rear end of the cylindrical portion 10. The cylindrical portion 10 has an inner cavity that allows a mating terminal to be inserted, and the welding portion 11 is used for welding to a cable 5. In the illustrated embodiment, the terminal body 1 is an integrally stamped part made by stamping a single metal sheet. Therefore, compared with the existing terminal bodies made of machined or stamped copper tubes, the present invention can greatly reduce the manufacturing cost, shorten the production cycle, improve the production efficiency, and greatly improve the competitiveness of this product in the market.

[0041] As Figures 1 to 6 shown, in the illustrated embodiment, the terminal body 1 further includes a connecting portion 12. The connecting portion 12 is connected between the cylindrical portion 10 and the welding portion 11. The connecting portion 12 is bent into a predetermined shape, and the welding portion 11 is flat.

[0042] As Figures 1 to 6 shown, in the illustrated embodiment, an opening 104 is formed on the cylindrical portion 10 to allow an injection molding material to enter the inner cavity of the cylindrical portion 10, so that the inner cavity of the cylindrical portion 10 can be divided into a front cavity and a rear cavity by a seal 2 formed by the injection molding material. In this way, water vapor and impurities entering the front cavity of the cylindrical portion 10 can be prevented from entering the rear cavity of the cylindrical portion 10.

[0043] As Figures 1 to 6 shown, in the illustrated embodiment, the opening 104 on the cylindrical portion 10 is arc-shaped and extends along the circumferential direction of the cylindrical portion 10. A pair of arc-shaped openings 104 are formed on the cylindrical portion 10, and the pair of arc-shaped openings 104 are spaced apart in the axial direction of the cylindrical portion 10.

[0044] As Figures 1 to 6 shown, in the illustrated embodiment, the cylindrical portion 10 has an arc-shaped bridge portion 105 located between a pair of arc-shaped openings 104. The arc-shaped bridge portion 105 is used for embedding into the seal 2 to engage with the seal 2.

[0045] As Figures 1 to 6 shown, in the illustrated embodiment, the inner peripheral surface of the cylindrical portion 10 has a bonding area for bonding with the seal 2. Rolling patterns 10c are formed on the bonding area of the inner peripheral surface of the cylindrical portion 10 to increase the bonding strength between the inner peripheral surface of the cylindrical portion 10 and the seal 2.

[0046] As Figures 1 to 6As shown, in the illustrated embodiment, a plurality of first positioning protrusions 101 and a plurality of second positioning protrusions 102 are formed on the inner circumferential surface of the front cavity of the cylindrical portion 10. The plurality of first positioning protrusions 101 are spaced apart in the circumferential direction of the cylindrical portion 10, and the plurality of second positioning protrusions 102 are spaced apart in the circumferential direction of the cylindrical portion 10. The first positioning protrusions 101 and the second positioning protrusions 102 are axially spaced apart and opposite to each other and are adapted to respectively abut against the front end and the rear end of the elastic contact member 3 inserted into the front cavity of the cylindrical portion 10 to axially position the elastic contact member 3.

[0047] As Figures 1 to 6 shown, in the illustrated embodiment, a drain hole 103 is formed in the peripheral wall of the front cavity of the cylindrical portion 10 so that water entering the front cavity of the cylindrical portion 10 can be discharged through the drain hole 103.

[0048] As Figures 1 to 6 shown, in the illustrated embodiment, the cylindrical portion 10 has a pair of side portions spliced together. A plurality of engaging grooves 10a are formed on one of the pair of side portions, and a plurality of engaging protrusions 10b are formed on the other. The plurality of engaging grooves 10a are spaced apart in the axial direction of the cylindrical portion 10, and the plurality of engaging protrusions 10b are spaced apart in the axial direction of the cylindrical portion 10 and respectively engage with the plurality of engaging grooves 10a to splice the pair of side portions of the cylindrical portion 10 together. In the illustrated embodiment, the engaging grooves 10a and the engaging protrusions 10b can be in the shape of Ω or dovetail. In this way, separation of the engaging grooves 10a and the engaging protrusions 10b can be prevented.

[0049] As Figures 1 to 6 shown, in another exemplary embodiment of the present invention, a terminal assembly is also disclosed. The terminal assembly mainly includes: the aforementioned terminal body 1 and the seal 2. The seal 2 is directly injection-molded onto the cylindrical portion 10 of the terminal body 1 through an injection molding process so that the two become an integral part. In the illustrated embodiment, the seal 2 enters the inner cavity of the cylindrical portion 10 through the opening 104 on the cylindrical portion 10 and engages with the peripheral wall of the cylindrical portion 10 to divide the inner cavity of the cylindrical portion 10 into a front cavity and a rear cavity, so that water vapor and dust entering the front cavity cannot enter the rear cavity.

[0050] As Figures 1 to 6 shown, in the illustrated embodiment, the seal 2 includes a main body portion 20 and a sealing flange 21. The main body portion 20 of the seal 2 is in a disc shape and engages with the outer peripheral surface and the inner peripheral surface of the peripheral wall of the cylindrical portion 10. The sealing flange 21 is formed on the outer peripheral surface of the main body portion 20. The sealing flange 21 of the seal 2 is adapted to be squeezed between the cylindrical portion 10 and the inner wall surface of the terminal jack 40 of the housing 4 of the charging device to achieve sealing therebetween. In the illustrated embodiment, a plurality of sealing flanges 21 are formed on the outer peripheral surface of the main body portion 20, and the plurality of sealing flanges 21 are axially spaced apart.

[0051] As Figures 1 to 6 shown, in the illustrated embodiment, the seal 2 further includes a pair of arcuate reinforcing ribs 22 which are respectively formed on the front and rear sides of the main body portion 20. The pair of arcuate reinforcing ribs 22 are respectively radially opposite to a pair of arcuate openings 104 on the cylindrical portion 10 and are joined to the peripheral wall of the cylindrical portion 10 to enhance the joining strength between the seal 2 and the cylindrical portion 10.

[0052] As Figures 1 to 6 shown, in the illustrated embodiment, the terminal assembly further includes an elastic contact member 3 which is inserted into the front cavity of the cylindrical portion 10 and is in electrical contact with the inner wall surface of the cylindrical portion 10. The elastic contact member 3 is a one-piece stamping formed member and is used for making electrical contact with a mating terminal (not shown) inserted into the front cavity of the cylindrical portion 10.

[0053] As Figures 1 to 6 shown, in the illustrated embodiment, the elastic contact member 3 includes a pair of annular ends 31, 32 and a plurality of elastic arm portions 30. The plurality of elastic arm portions 30 are connected between the pair of annular ends 31, 32. The plurality of elastic arm portions 30 are spaced apart in the circumferential direction of the annular ends 31, 32 and are used for making electrical contact with the outer peripheral surface of the inserted mating terminal.

[0054] As Figures 1 to 6 shown, in the illustrated embodiment, the annular ends 31, 32 are C-shaped, such that the annular ends 31, 32 can be elastically deformed in the radial direction.

[0055] As Figures 1 to 6 shown, in the illustrated embodiment, a plurality of contact projections 3a are formed on the outer peripheral surfaces of the annular ends 31, 32 and can be formed by stamping. The plurality of contact projections 3a are spaced apart and distributed on the entire outer peripheral surfaces of the annular ends 31, 32 and are used for making electrical contact with the inner wall surface of the cylindrical portion 10.

[0056] As Figures 1 to 6 shown, in the illustrated embodiment, the pair of annular ends 31, 32 includes a first annular end 31 and a second annular end 32. The first annular end 31 is close to the front port of the cylindrical portion 10. The second annular end 32 is axially opposite to the first annular end 31. The first positioning projection 101 and the second positioning projection 102 of the cylindrical portion 10 are adapted to respectively abut against the end faces of the first annular end 31 and the second annular end 32 of the elastic contact member 3 to axially position the elastic contact member 3.

[0057] As Figures 1 to 6As shown, in the illustrated embodiment, the terminal assembly further includes a cable 5, and the cable 5 has an exposed conductor end 51. The welding portion 11 of the terminal body 1 and the conductor end 51 of the cable 5 are both flat and welded together. For example, they can be welded together by ultrasonic welding.

[0058] Figure 7 A schematic diagram showing the insertion of a terminal assembly according to an exemplary embodiment of the present invention into a terminal jack 40.

[0059] As Figures 1 to 7 As shown, in another exemplary embodiment of the present invention, a charging device is also disclosed. The charging device includes a housing 4 and the aforementioned terminal assembly. A terminal jack 40 is formed in the housing 4. The terminal assembly is inserted into the terminal jack 40. The terminal assembly is used to make electrical contact with a mating terminal of a mating charging device inserted into the terminal jack 40 to electrically connect the charging device and the mating charging device.

[0060] As Figures 1 to 6 As shown, in the illustrated embodiment, the charging device can be a charging stand or can be a charging gun that mates with the charging stand.

[0061] Those skilled in the art can understand that the above-described embodiments are all exemplary, and those skilled in the art can make improvements to them. The structures described in various embodiments can be freely combined without conflicts in structure or principle. These changes should reasonably fall within the protection scope of the present invention.

[0062] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the present invention and should not be construed as a limitation of the present invention.

[0063] Although some embodiments of the general concept of the present invention have been shown and described, those of ordinary skill in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the general concept of the present invention. The scope of the present invention is defined by the claims and their equivalents.

[0064] It should be noted that the term "including" does not exclude other elements or steps, and the terms "a" or "one" do not exclude a plurality. Additionally, any element label in the claims should not be construed as limiting the scope of the present invention.

Claims

1. A terminal body, characterized in that, Comprising: A cylindrical portion (10) having a front end and a rear end opposite to each other in its axial direction; And A welding portion (11) connected to the rear end of the cylindrical portion (10), The cylindrical portion (10) has a lumen allowing the mating terminal to be inserted, and the welding portion (11) is used for welding to a cable (5). The terminal body (1) is an integrally stamped part made by stamping a single metal sheet.

2. The terminal body according to claim 1, characterized in that, Further comprising: A connecting portion (12) connected between the cylindrical portion (10) and the welding portion (11), The connecting portion (12) is bent into a predetermined shape, and the welding portion (11) is flat.

3. The terminal body according to claim 1, characterized in that: An opening (104) is formed on the cylindrical portion (10) to allow the injection molding material to enter the lumen of the cylindrical portion (10), so that the lumen of the cylindrical portion (10) can be divided into a front cavity and a rear cavity by a seal (2) formed by the injection molding material.

4. The terminal body according to claim 3, characterized in that: The opening (104) is arc-shaped and extends along the circumferential direction of the cylindrical portion (10), and a pair of the openings (104) are formed on the cylindrical portion (10), and the pair of openings (104) are spaced apart in the axial direction of the cylindrical portion (10).

5. The terminal body according to claim 4, characterized in that: The cylindrical portion (10) has an arc-shaped bridge portion (105) located between the pair of openings (104), and the arc-shaped bridge portion (105) is used for being embedded in the seal (2) to engage with the seal (2).

6. The terminal body according to claim 3, characterized in that: The inner circumferential surface of the cylindrical portion (10) has an engaging area for engaging with the seal (2), and rolling patterns (10c) are formed on the engaging area of the inner circumferential surface of the cylindrical portion (10) to increase the engaging strength between the inner circumferential surface of the cylindrical portion (10) and the seal (2).

7. The terminal body according to claim 3, characterized in that: A plurality of first positioning protrusions (101) and a plurality of second positioning protrusions (102) are formed on the inner circumferential surface of the front cavity of the cylindrical portion (10), the plurality of first positioning protrusions (101) are spaced apart in the circumferential direction of the cylindrical portion (10), and the plurality of second positioning protrusions (102) are spaced apart in the circumferential direction of the cylindrical portion (10); The first positioning protrusion (101) and the second positioning protrusion (102) are spaced apart axially and are adapted to respectively abut against the front end and the rear end of an elastic contact member (3) inserted into the front cavity of the cylindrical portion (10) to axially position the elastic contact member (3).

8. The terminal body according to claim 3, characterized in that: A drain hole (103) is formed on the peripheral wall of the front cavity of the cylindrical portion (10) so that water entering the front cavity of the cylindrical portion (10) can be discharged through the drain hole (103).

9. The terminal body according to claim 1, characterized in that: The cylindrical portion (10) has a pair of side portions joined together, and a plurality of engaging grooves (10a) are formed on one of the pair of side portions, and a plurality of engaging protrusions (10b) are formed on the other; The plurality of engaging grooves (10a) are spaced apart in the axial direction of the cylindrical portion (10), and the plurality of engaging protrusions (10b) are spaced apart in the axial direction of the cylindrical portion (10) and are respectively engaged with the plurality of engaging grooves (10a) to join the pair of side portions of the cylindrical portion (10) together.

10. The terminal body according to claim 9, wherein: The engaging grooves (10a) and the engaging protrusions (10b) are in an Ω shape or a dovetail shape.

11. A terminal component, characterized in that, Comprising: The terminal body (1) according to any one of claims 1-10; And A seal (2) directly injection-molded onto the cylindrical portion (10) of the terminal body (1) such that the two become an integral part, The seal (2) enters the inner cavity of the cylindrical portion (10) through an opening (104) on the cylindrical portion (10) and engages with the peripheral wall of the cylindrical portion (10) to divide the inner cavity of the cylindrical portion (10) into a front cavity and a rear cavity, so that moisture and dust entering the front cavity cannot enter the rear cavity.

12. The terminal assembly according to claim 11, wherein: The seal (2) comprises: A main body portion (20), in a disc shape and engaging with the outer peripheral surface and the inner peripheral surface of the peripheral wall of the cylindrical portion (10); and A sealing flange (21), formed on the outer peripheral surface of the main body portion (20), and the sealing flange (21) is adapted to be squeezed between the cylindrical portion (10) and the inner wall surface of the terminal jack (40) of the housing (4) of the charging device to achieve sealing therebetween.

13. The terminal assembly according to claim 12, wherein: The seal (2) further comprises: A pair of arc-shaped reinforcing ribs (22), respectively formed on the front and rear sides of the main body portion (20), The pair of arc-shaped reinforcing ribs (22) are respectively radially opposite to a pair of openings (104) on the cylindrical portion (10) and engage with the peripheral wall of the cylindrical portion (10) to enhance the engagement strength between the seal (2) and the cylindrical portion (10).

14. The terminal assembly according to claim 11, wherein, Further comprising: An elastic contact member (3), inserted into the front cavity of the cylindrical portion (10) and making electrical contact with the inner wall surface of the cylindrical portion (10), The elastic contact member (3) is an integrally stamped part for making electrical contact with a mating terminal inserted into the front cavity of the cylindrical portion (10).

15. The terminal assembly according to claim 14, wherein: The elastic contact member (3) comprises: A pair of annular ends (31, 32); and A plurality of elastic arm portions (30), connected between the pair of annular ends (31, 32), The plurality of elastic arm portions (30) are spaced apart in the circumferential direction of the annular ends (31, 32) for making electrical contact with the outer peripheral surface of the inserted mating terminal.

16. The terminal assembly according to claim 15, wherein: The annular ends (31, 32) are C-shaped so that the annular ends (31, 32) can be elastically deformed in the radial direction.

17. The terminal assembly according to claim 16, wherein: A plurality of contact protrusions (3a) are formed on the outer peripheral surface of the annular ends (31, 32), and the plurality of contact protrusions (3a) are spaced apart and distributed on the entire outer peripheral surface of the annular ends (31, 32) for making electrical contact with the inner wall surface of the cylindrical portion (10).

18. The terminal assembly according to claim 15, wherein: The pair of annular ends (31, 32) includes: A first annular end (31) near the front port of the cylindrical portion (10); and A second annular end (32) axially opposite to the first annular end (31), and the first positioning protrusion (101) and the second positioning protrusion (102) of the cylindrical portion (10) are adapted to respectively abut against the end faces of the first annular end (31) and the second annular end (32) of the elastic contact member (3) to axially position the elastic contact member (3).

19. The terminal assembly according to claim 11, characterized in that, Further included is: A cable (5) having a conductor end (51), The welding portion (11) of the terminal body (1) and the conductor end (51) of the cable (5) are both flat and welded together.

20. A charging device, characterized in that, Including: A housing (4) formed with a terminal jack (40); And The terminal assembly according to any one of claims 11-19, inserted into the terminal jack (40), The terminal assembly is used for making electrical contact with a mating terminal of a mating charging device inserted into the terminal jack (40) to electrically connect the charging device and the mating charging device.

21. The charging device according to claim 20, wherein: The charging device is a charging stand or a charging gun that mates with the charging stand.

Images