Electric connector and electric connector kit

Abstract

The utility model discloses an electric connector and an electric connector kit, and belongs to the technical field of electric connectors, and the electric connector comprises a first housing which is provided with a first channel and a second channel; at least part of the first terminal is arranged in the first channel, and the first terminal is provided with a socket slot; at least part of the second terminal is arranged in the second channel, and the second terminal is provided with a through hole; the locking assembly comprises a first locking part and a second locking part, the first locking part is partially arranged in the socket slot and penetrates through the first terminal, the first locking part is fixedly connected with the first terminal, the second locking part is arranged in the first shell and is connected with the first shell, and the first locking part penetrates through the through hole and is locked with the second locking part; the first terminal is conductively connected with the second terminal. According to the invention, the first locking part is fixed on the first terminal, and the first locking part is connected with the second terminal in a penetrating manner and is locked with the second locking part, so that the rapid and stable connection of the first terminal and the second terminal is realized, and the conductive connection reliability and vibration resistance of the first terminal and the second terminal are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of current transmission, and specifically relates to an electrical connector and an electrical connector kit. Background Art

[0002] At present, electrical connectors are widely used in fields such as electric vehicles. With the development of integrated high-voltage electrical systems in electric vehicles, various electrical energy devices need to be integrated into the electric drive assembly, which puts higher requirements on the vibration resistance and electrical connection reliability of electrical connectors. Utility Model Content

[0003] Purpose of the utility model: The embodiment of the present application provides an electrical connector to solve the above-mentioned technical problems; another purpose of the embodiment of the present application is to provide an electrical connector kit using the above-mentioned electrical connector.

[0004] Technical solution: An electrical connector according to an embodiment of the present application includes:

[0005] A first shell, wherein a first channel and a second channel are connected to each other, the first channel extends along a first direction, the second channel extends along a second direction, and the first direction and the second direction intersect;

[0006] a first terminal, wherein the first terminal is at least partially disposed in the first passage, the first terminal has a socket, and an opening of the socket faces the outside of the first housing;

[0007] a second terminal, wherein the second terminal is at least partially disposed in the second channel, and the second terminal is provided with a through hole toward the first terminal;

[0008] A locking assembly, the locking assembly comprising a first locking portion and a second locking portion, the first locking portion being partially disposed in the socket and passing through the first terminal, and the first locking portion being fixedly connected to the first terminal, the second locking portion being disposed in the first shell and connected to the first shell, and the second locking portion being located on a side of the second terminal facing away from the first terminal, the first locking portion passing through the through hole and locking the second locking portion so that the first terminal is conductively connected to the second terminal.

[0009] In some embodiments, the first direction and the second direction are perpendicular to each other.

[0010] In some embodiments, a fixing groove is defined in the first shell toward the first locking portion, and the second locking portion is embedded in the fixing groove.

[0011] In some embodiments, the first locking portion is threadedly connected to the second locking portion.

[0012] In some embodiments, the first housing is provided with a docking groove, the docking groove surrounds the first channel, and the docking groove and the first channel are spaced apart from each other;

[0013] The first shell is adjustably provided with a first locking member, and at least a portion of the first locking member is configured to be able to extend into the docking groove or be separated from the docking groove.

[0014] In some embodiments, the electrical connector further includes a limit member, which is adjustably connected to the first shell, and at least a portion of the limit member is configured to be able to extend into the docking slot and block the first locking member from extending into the docking slot.

[0015] In some embodiments, the electrical connector further includes a first sealing ring, and the first sealing ring is embedded in the docking groove.

[0016] Accordingly, an electrical connector kit according to an embodiment of the present application includes the above-mentioned electrical connector, and further includes:

[0017] a second shell, wherein the second shell has a third channel, the second shell is detachably connected to the first shell, and the third channel is connected to the first channel in the first direction;

[0018] A third terminal is at least partially disposed in the third channel, and a portion of the third terminal is plugged into the socket to be conductively connected to the first terminal.

[0019] In some embodiments, the third terminal sleeve is provided with a second sealing ring, the second sealing ring is located in the third channel, and the second sealing ring abuts against the second shell.

[0020] In some embodiments, a sealing groove is formed on a side of the second shell facing away from the first shell, the sealing groove surrounds the third channel, and the sealing groove and the third channel are spaced apart from each other;

[0021] The electrical connector kit also includes a third sealing ring, and the third sealing ring is embedded in the sealing groove.

[0022] Beneficial effect: The electrical connector of the embodiment of the present application includes a first shell, a first terminal, a second terminal and a locking assembly. The first shell has a first channel and a second channel connected to each other, the first terminal is at least partially arranged in the first channel, the first terminal has a socket, and the opening of the socket faces the outside of the first shell; the second terminal is at least partially arranged in the second channel, and the second terminal has a through hole facing the first terminal; the locking assembly includes a first locking part and a second locking part, the first locking part is partially arranged in the socket and passes through the first terminal, the first locking part is fixedly connected to the first terminal, the second locking part is arranged in the first shell and connected to the first shell, the second locking part is located on the side of the second terminal away from the first terminal, the first locking part passes through the through hole and locks the second locking part, so that the first terminal is conductively connected to the second terminal. By fixing the first locking portion on the first terminal, when the first terminal is assembled into the first shell, the second terminal can be penetrated through the first locking portion and locked with the second locking portion, thereby realizing a quick and stable connection between the first terminal and the second terminal. There is no need to provide an opening structure on the first shell to introduce a connecting piece into the first shell to connect the first terminal and the second terminal, thereby improving the sealing reliability of the first shell, the reliability of the conductive connection between the first terminal and the second terminal, and the vibration resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the electrical connection kit according to an embodiment of the present application;

[0025] Figure 2 is a schematic structural diagram of an embodiment of the present application, looking directly at an end of the third channel away from the first channel;

[0026] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0027] Figure 4 is a schematic structural diagram of the first shell of an embodiment of the present application;

[0028] Figure 5 It is a schematic diagram of the exploded structure of the first terminal, the second terminal and other structures in the first housing of the embodiment of the present application;

[0029] Figure 6 It is a schematic diagram of the exploded structure of the limiter and the first shell in the embodiment of the present application;

[0030] Figure 7is a schematic structural diagram of the second housing in an embodiment of the present application;

[0031] Figure 8 It is a schematic diagram of the exploded structure of the third terminal and other structures in the second housing of the embodiment of the present application;

[0032] Reference numerals: 1, first housing; 10, first passage; 11, second passage; 12, fixing groove; 13, docking groove; 130, first sealing ring; 14, first locking member; 140, pressing portion; 141, locking portion; 15, bearing groove; 16, fourth sealing ring; 17, wire fixing member; 18, wire tail clip; 19, retaining member; 2, first terminal; 20, socket slot; 3, second terminal; 30, through hole; 4, locking Component; 40, first locking part; 41, second locking part; 5, limiter; 50, torsion part; 51, limiter; 6, second shell; 60, third channel; 61, sealing groove; 610, third sealing ring; 62, main body; 620, locking ring; 63, connecting part; 630, assembly hole; 7, third terminal; 70, anti-touch cap; 71, connecting hole; 72, second sealing ring; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0034] In the description of the present application, it should be understood that the terms "thickness", "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0035] The applicant noted that electrical connectors are widely used in various electrical systems. For example, with the development of electric vehicle technology, the integration of high-voltage electrical systems of electric vehicles is getting higher and higher. Various high-voltage electrical systems are gradually integrated with electric drive assemblies, such as On-Board Charger (OBC), DC-DC Converter (DCDC), Power Distribution Unit (PDU), etc.

[0036] Take DCDC as an example. In non-integrated high-voltage electrical systems, DCDC is fixed on the vehicle frame, and the vibration level of the electrical connector used for DCDC output is not high (usually not higher than 2.7g vibration acceleration). With the development of integrated high-voltage electrical systems, after DCDC is integrated into the electric drive assembly, the vibration level of the connector for DCDC output increases (5g to 6g or higher vibration acceleration), so the sealing and electrical connection reliability of the electrical connector under vibration conditions are required to be higher.

[0037] In view of this, combined with Figures 1 to 8 , an embodiment of the present application provides an electrical connector, aiming to overcome at least one of the above-mentioned technical problems.

[0038] Reference Figures 1 to 6 An electrical connector includes a first housing 1, a first terminal 2, a second terminal 3 and a locking assembly 4. Among them, the first shell 1 has a first channel 10 and a second channel 11 connected to each other, the first channel 10 extends along a first direction X, the second channel 11 extends along a second direction Y, and the first direction X and the second direction Y intersect; the first terminal 2 is at least partially arranged in the first channel 10, the first terminal 2 has a socket 20, and the opening of the socket 20 faces the outside of the first shell 1; the second terminal 3 is at least partially arranged in the second channel 11, and the second terminal 3 has a through hole 30 facing the first terminal 2; the locking assembly 4 includes a first locking portion 40 and a second locking portion 41, the first locking portion 40 is partially arranged in the socket 20 and penetrates the first terminal 2, the first locking portion 40 is fixedly connected to the first terminal 2, the second locking portion 41 is arranged in the first shell 1 and connected to the first shell 1, the second locking portion 41 is located on the side of the second terminal 3 away from the first terminal 2, the first locking portion 40 penetrates the through hole 30 and locks the second locking portion 41, so that the first terminal 2 is conductively connected to the second terminal 3.

[0039] By fixing the first locking portion 40 on the first terminal 2, when the first terminal 2 is assembled into the first shell 1, the second terminal 3 can be penetrated through the first locking portion 40 and locked with the second locking portion 41, thereby realizing a quick and stable connection between the first terminal 2 and the second terminal 3. There is no need to provide an opening structure on the first shell 1 to introduce a connector into the first shell 1 to connect the first terminal 2 and the second terminal 3, thereby improving the sealing reliability of the first shell 1, the conductive connection reliability of the first terminal 2 and the second terminal 3, and the vibration resistance.

[0040] It should be noted that, in the present embodiment, the first terminal 2 is configured as a female terminal structure, and a matching male terminal is inserted into the socket 20 to achieve a conductive connection between the male and female terminals.

[0041] Reference Figure 3 In this embodiment, the first direction X and the second direction Y are perpendicular to each other, that is, in this embodiment, the first terminal 2 and the second terminal 3 are taken as an example to realize a 90° conductive connection in the first shell 1. In other embodiments, the intersection angle of the first channel 10 and the second channel 11 can be flexibly adjusted as needed to realize the conductive connection of the first terminal 2 and the second terminal 3 at other angles.

[0042] Specifically, in some embodiments, referring to Figures 1 to 5 A fixing groove 12 is opened in the first housing 1 toward the first locking portion 40 , and the structure of the fixing groove 12 is adapted to the second locking portion 41 so that the second locking portion 41 can be embedded therein, thereby fixing the second locking portion 41 .

[0043] In this embodiment, the first locking portion 40 may adopt a bolt structure, and the first locking portion 40 is riveted to the first terminal 2 and extends out of the socket 20. Correspondingly, the second locking portion 41 may adopt a nut structure, that is, the first locking portion 40 is threadedly connected to the second locking portion 41. By relatively screwing the first locking portion 40 and the second locking portion 41, the first terminal 2 and the second terminal 3 can be quickly locked, thereby improving the vibration resistance and electrical connection reliability of the conductive connection between the first terminal 2 and the second terminal 3.

[0044] In some embodiments, reference Figure 3 and Figure 4 The first housing 1 is provided with a docking groove 13, which surrounds the first channel 10, and the docking groove 13 and the first channel 10 are spaced apart from each other. It should be noted that the first housing 1 can be manufactured by integral molding, that is, the docking groove 13 can be formed during the molding process.

[0045] The first housing 1 is adjustably provided with a first locking member 14 , and at least a portion of the first locking member 14 is configured to be able to extend into or out of the docking slot 13 .

[0046] Reference Figures 3 to 6In this embodiment, the first locking member 14 includes a pressing portion 140 connected to the first housing 1 and a locking portion 141 provided on the side of the pressing portion 140 facing the docking slot 13. The outer periphery of the pressing portion 140 is partially disconnected from the first housing 1, and some connection points are retained to form an elastic deformation structure that can be pressed into the docking slot 13. The locking portion 141 is a convex ridge structure extending toward the docking slot 13. When the matching male terminal structure is inserted into the docking slot 13, the locking portion 141 can prevent the male terminal structure from being separated.

[0047] Specifically, the first locking member 14 includes at least a first state and a second state. In the first state, the pressing portion 140 is not deformed without external force, and the locking portion 141 extends into the docking groove 13 to produce a blocking effect. The connection point between the pressing portion 140 and the first shell 1 is located between the pressing end of the pressing portion 140 and the locking portion 141. The pressing portion 140 is pressed downward by the side of the connection point between the pressing portion 140 and the first shell 1 that is away from the locking portion 141. At this time, the locking portion 141 can move upward away from the docking groove 13 to disengage the docking groove 13, thereby reaching the second state, that is, the blocking effect of the contact locking portion 141 in the docking groove 13.

[0048] Further, in some embodiments, referring to Figures 3 to 6 The electrical connector further includes a limit member 5 , which is adjustably connected to the first housing 1 , and at least a portion of the limit member 5 is configured to be able to extend into the docking groove 13 and block the first locking member 14 from extending into the docking groove 13 .

[0049] Specifically, refer to Figures 3 to 6 The position limiting member 5 can adopt a conventional connector secondary locking structure (Connector Position Assurance, CPA for short). In this embodiment, the position limiting member 5 includes a torsion portion 50 and a position limiting member 51 connected to the torsion portion 50 on the side facing the first shell 1. The corresponding first shell 1 is provided with a rotation groove 15 for the rotation connection of the torsion portion 50 on the side facing the torsion portion 50. The position limiting member 51 can be inserted into the docking groove 13 from the rotation groove 15, and the position limiting member 51 has a convex structure. The corresponding first shell 1 is provided with a clearance groove for the extension of the convex structure, so that the convex structure can limit the overall position limiting member 5 on the first shell 1 in the first direction X. At this time, the overall position limiting member 5 can only rotate.

[0050] The limiting member 5 also includes at least two states, one of which is to rotate the torsion portion 50 under the action of an external force, so that the limiting portion 51 rotates to be opposite to the pressing portion 140. At this time, the limiting portion 51 hinders the downward movement of the pressing portion 140, so that the locking portion 141 cannot be separated from the docking groove 13, thereby preventing the structure inserted into the docking groove 13 from being separated from the docking groove 13, and avoiding the male and female terminals from being accidentally disengaged due to the pressing portion 140 being pressed by mistake. The other state is to rotate the torsion portion 50 under the action of an external force, so that the limiting portion 51 is misaligned with the pressing portion 140. At this time, the pressing portion 140 can be pressed down normally and the locking portion 141 can be separated from the docking groove 13.

[0051] In addition, in some embodiments, reference Figure 3 The electrical connector further includes a first sealing ring 130, and the first sealing ring 130 is embedded in the docking groove 13. The first sealing ring 130 is used to abut against the structure inserted into the docking groove 13 to form a sealing effect.

[0052] In addition, refer to Figures 3 to 5 The electrical connector further includes a retaining member 19, which can be snapped into the docking groove 13 and abutted against the side of the first sealing ring 130 away from the second channel 11. The retaining member 19 can also allow the external terminal to smoothly penetrate into the socket 20 of the first terminal 2. The retaining member 19 can restrict the first terminal 2 from being separated from the first channel 10 on the one hand, and can also fix the first sealing ring 130 to prevent it from being separated from the docking groove 13 on the other hand.

[0053] In addition, refer to Figures 1 to 6 In some embodiments, the first housing 1 is provided with a fourth sealing ring 16, a wire fixing member 17 and a wire tail clip 18 in sequence along the direction away from the first channel 10 at one end of the second channel 11 away from the first channel 10. It can be understood that the wire needs to be inserted into the second channel 11 to connect the second terminal 3, and the wire fixing member 17 can be a conventional wire fixing device to eliminate the stress of the wire. At this time, the fourth sealing ring 16 surrounds the outside of the wire to form a sealing effect, and the wire tail clip 18 plays a role in fixing the wire. The wire fixing member 17 and the wire tail clip 18 are both existing technologies and will not be repeated here.

[0054] Accordingly, refer to Figure 1 , Figure 3 , Figure 7 and Figure 8 An electrical connector kit according to an embodiment of the present application includes the above-mentioned electrical connector, and further includes a second housing 6 and a third terminal 7. The second housing 6 has a third channel 60, the second housing 6 is detachably connected to the first housing 1, and the third channel 60 is connected to the first channel 10 in the first direction X; the third terminal 7 is at least partially disposed in the third channel 60, and the third terminal 7 is partially inserted into the socket 20 to be conductively connected to the first terminal 2.

[0055] It can be understood that the structure formed by the second housing 6 and the third terminal 7 is a male terminal structure adapted to the female terminal structure formed by the first housing 1 and the first terminal 2 .

[0056] Specifically, refer to Figure 3 , Figure 7 and Figure 8 The second shell 6 includes a main body 62 having the third channel 60 and a connecting portion 63 surrounding the main body 62 . The connecting portion 63 is circumferentially provided with a plurality of assembly holes 630 to facilitate rapid installation and fixation of the second shell 6 .

[0057] Reference Figure 3 , Figure 7 and Figure 8 The end of the third terminal 7 facing the first terminal 2 is also clamped with an anti-contact cap 70. It can be understood that the anti-contact cap 70 can be made of plastic material and clamped on the end of the third terminal 7 to achieve an anti-contact effect and improve the safety of the third terminal 7 when plugging and unplugging.

[0058] Reference Figure 1 and Figure 3 When the second housing 6 and the first housing 1 are butted together to make the first terminal 2 and the third terminal 7 conductively connected, the main body 62 is inserted into the butting groove 13 and abuts against the first housing 1, the retaining member 19 and the first sealing ring 130. A locking ring 620 is provided on the side of the main body 62 facing the first locking member 14, and the locking ring 620 cooperates with the locking portion 141. After the third terminal 7 is inserted into the socket 20, the locking ring 620 is located on the side of the locking portion 141 away from the connecting portion 63, so as to lock the entire second housing 6 on the first housing 1.

[0059] In addition, refer to Figure 3 , Figure 7 and Figure 8 The end of the third terminal 7 facing away from the anti-touch cap 70 extends out of the third channel 60 and is provided with a connection hole 71 to facilitate conductive connection with other structures.

[0060] In addition, refer to Figure 3 and Figure 8 The third terminal 7 is sleeved with a second sealing ring 72 , which is located in the third channel 60 and abuts against the second housing 6 , so as to form a sealing effect between the third terminal 7 and the main body 62 .

[0061] In addition, in some embodiments, reference Figure 3 and Figure 8A sealing groove 61 is formed on the side of the connecting portion 63 facing away from the first housing 1, and the sealing groove 61 surrounds the main body 62; the electrical connector kit further includes a third sealing ring 610, and the third sealing ring 610 is embedded in the sealing groove 61. When the second housing 6 is installed, the third sealing ring 610 can abut against the installation surface of the second housing 6 to form a sealing effect.

[0062] The above is a detailed introduction to an electrical connector and an electrical connector kit provided in the embodiments of the present application, and the principles and implementation methods of the present application are explained by using specific examples. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrical connector, characterized in that: include: A first shell (1), wherein the first shell (1) has a first channel (10) and a second channel (11) that are connected to each other, the first channel (10) extending along a first direction (X), the second channel (11) extending along a second direction (Y), and the first direction (X) and the second direction (Y) intersecting each other; A first terminal (2), the first terminal (2) being at least partially disposed in the first channel (10), the first terminal (2) having a socket (20), and an opening of the socket (20) facing the outside of the first housing (1); A second terminal (3), the second terminal (3) being at least partially disposed in the second channel (11), and the second terminal (3) being provided with a through hole (30) facing the first terminal (2); A locking assembly (4), the locking assembly (4) comprising a first locking portion (40) and a second locking portion (41), the first locking portion (40) being partially disposed in the socket (20) and penetrating the first terminal (2), and the first locking portion (40) being fixedly connected to the first terminal (2), the second locking portion (41) being disposed in the first housing (1) and connected to the first housing (1), and the second locking portion (41) being located on a side of the second terminal (3) facing away from the first terminal (2), the first locking portion (40) penetrating the through hole (30) and locking the second locking portion (41) so that the first terminal (2) is conductively connected to the second terminal (3).

2. The electrical connector according to claim 1, characterized in that: The first direction (X) and the second direction (Y) are perpendicular to each other.

3. The electrical connector according to claim 1, characterized in that: A fixing groove (12) is provided in the first shell (1) towards the first locking portion (40), and the second locking portion (41) is embedded in the fixing groove (12).

4. The electrical connector according to claim 1, characterized in that: The first locking portion (40) is threadedly connected to the second locking portion (41).

5. The electrical connector according to claim 1, characterized in that: The first shell (1) is provided with a docking groove (13), the docking groove (13) surrounds the first channel (10), and the docking groove (13) and the first channel (10) are spaced apart from each other; The first housing (1) is adjustably provided with a first locking member (14), and at least a portion of the first locking member (14) is configured to be able to extend into the docking groove (13) or to be able to detach from the docking groove (13).

6. The electrical connector according to claim 5, characterized in that: The electrical connector further comprises a limiting member (5), wherein the limiting member (5) is adjustably connected to the first housing (1), and at least a portion of the limiting member (5) is configured to be able to extend into the docking groove (13) and block the first locking member (14) from extending into the docking groove (13).

7. The electrical connector according to claim 5, characterized in that: The electrical connector also includes a first sealing ring (130), and the first sealing ring (130) is embedded in the docking groove (13).

8. An electrical connector kit, characterized in that: The electrical connector according to any one of claims 1 to 7, further comprising: a second shell (6), the second shell (6) having a third channel (60), the second shell (6) being detachably connected to the first shell (1), and the third channel (60) being connected to the first channel (10) in the first direction (X); A third terminal (7), wherein the third terminal (7) is at least partially disposed in the third channel (60), and the third terminal (7) is partially inserted into the socket (20) to be electrically connected to the first terminal (2).

9. The electrical connector kit according to claim 8, characterized in that: The third terminal (7) is sleeved with a second sealing ring (72), the second sealing ring (72) is located in the third channel (60), and the second sealing ring (72) abuts against the second housing (6).

10. The electrical connector kit according to claim 8, characterized in that A sealing groove (61) is provided on a side of the second shell (6) facing away from the first shell (1), the sealing groove (61) surrounds the third channel (60), and the sealing groove (61) and the third channel (60) are spaced apart from each other; The electrical connector kit also includes a third sealing ring (610), and the third sealing ring (610) is embedded in the sealing groove (61).

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