Connecting terminal easy to assemble and socket

Abstract

The utility model discloses a connecting terminal and a socket easy to assemble, comprising a connecting piece, a terminal, a sealing piece and a cable, the connecting piece comprises a first cylinder part and a second cylinder part, the cylinder wall of the first cylinder part is provided with a gap, the tail end of the terminal is inserted in the first cylinder part, and the tail end of the terminal does not protrude out of the gap; the sealing element is arranged at the tail end of the second cylinder part, the sealing element comprises an inner sealing layer and an outer sealing layer, the cable is inserted into the second cylinder part and is in compression joint with the tail end of the terminal into a whole, and the joint of the cable and the terminal is located at the notch. The inner sealing layer seals a gap between the cable and the second cylinder part, and the outer sealing layer is attached to the outer wall of the second cylinder part. According to the utility model, the terminal, the cable and the sealing member are connected into an integral assembly through the connecting member, so that rapid assembly is facilitated, and automatic assembly is also facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a connection terminal and a socket which are easy to assemble. Background Art

[0002] With the development of new energy vehicles, the connectors used for charging are also constantly developing. The connector is an important component used for charging in new energy vehicles. During the use of new energy vehicles, the socket needs to be used frequently to charge the battery. The stability of the internal structure of the socket has an important impact on its performance and life. In the internal structure of the socket, the connecting terminal is the main component that plays an electrical connection, and it mainly realizes electrical connection through plugging. In the prior art, one end of the connecting terminal is electrically connected to the external power supply, and the other end is riveted to the cable. When the connecting terminal is damaged and needs to be repaired, the entire charging socket needs to be disassembled and replaced, which makes the repair difficult and the repair cost high. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a connection terminal and a socket that are easy to assemble.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] An easy-to-assemble connecting terminal comprises a connecting piece, a terminal, a sealing piece and a cable, wherein the connecting piece is in the shape of a hollow cylinder with both front and rear ends being open, the connecting piece comprises a first cylinder portion and a second cylinder portion, a notch is formed on the cylinder wall of the first cylinder portion, the tail end of the terminal is inserted into the first cylinder portion, and the tail end of the terminal does not protrude out of the notch; the sealing piece is arranged at the tail end of the second cylinder portion, the sealing piece comprises an inner sealing layer and an outer sealing layer, the cable is inserted into the second cylinder portion and is crimped into one with the tail end of the terminal, the connection between the cable and the terminal is located at the notch, the inner sealing layer seals the gap between the cable and the second cylinder portion, and the outer sealing layer is attached to the outer wall of the second cylinder portion.

[0006] Preferably, the inner sealing layer and the outer sealing layer are connected via a group of connecting arms, a group of through holes matching the connecting arms are arranged on the side wall of the second cylinder portion, and the connecting arms are inserted into the through holes.

[0007] Preferably, the tail end of the second barrel portion has an end cover whose outer diameter is greater than the outer diameter of the barrel body, and the end cover is connected to the tail end of the through hole.

[0008] Preferably, one side of the end cover has an outwardly protruding ear portion.

[0009] Preferably, a limiting step surface is provided on the inner wall of the second cylinder portion, the front end surface of the inner sealing layer abuts against the end cover, and the rear end surface of the outer sealing layer abuts against the limiting step surface, to jointly limit the position of the seal.

[0010] Preferably, multiple sealing rings are provided on the inner wall of the inner sealing layer and the outer wall of the outer sealing layer.

[0011] Preferably, the cross-section of the barrel wall of the first barrel portion is semicircular, and the side edge of the barrel wall of the first barrel portion is perpendicular to the end edge of the barrel wall of the second barrel portion to form the notch.

[0012] A socket comprises a plug core shell, wherein the plug core shell has a group of hollow jacks, each of the jacks is inserted with a connection terminal as described above that is easy to assemble, the jacks match the tail end of the connector, a cover is fixedly connected to the tail end of the plug core shell, the cover confines the connection terminal that is easy to assemble in the jacks, a limiting hole with a diameter smaller than the jack is provided on the cover, the limiting hole abuts against the tail end of the connector, the cable is passed through the limiting hole, and the outer sealing layer of the seal seals the gap between the jack and the connector.

[0013] Preferably, a pair of elastic clips are symmetrically provided on the outer wall of the terminal, and a recess matched with the elastic clips is provided in the insertion hole, and the elastic clips are clamped in the recess.

[0014] The beneficial effects of the utility model are mainly reflected in:

[0015] 1. Connect the terminal, cable and seal into an integral component through the connector, which is convenient for quick assembly and automatic assembly with the robot. At the same time, the integration also makes the connection between the terminal and the cable tighter, so that it can withstand repeated plug-in and pull-out strength during use, ensuring the stability of use;

[0016] 2. A notch is provided on the first barrel of the connector to expose the crimping joint between the terminal and the cable, so that it can be inspected and maintained after being pulled out as a whole;

[0017] 3. The seal is coated on the end of the connector by rubber to effectively ensure the connection stability between the two. The seal seals the gap between the cable and the connector, and the gap between the connector and the jack of the plug housing through the inner sealing layer and the outer sealing layer, respectively, to ensure the overall sealing without the need to set sealing rings separately, which is convenient for assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 : Schematic diagram of the connection terminals for easy assembly;

[0020] Figure 2 : Schematic diagram of the connector;

[0021] Figure 3 : Schematic diagram of the seal;

[0022] Figure 4 : Schematic diagram of the socket;

[0023] Figure 5 : A cross-sectional view of the socket;

[0024] Figure 6 : Exploded view of the socket. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all included in the protection scope of the present invention.

[0026] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of description and simplified description, and do not indicate or imply 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 of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0027] like Figures 1 to 3As shown, the utility model discloses an easy-to-assemble connecting terminal, including a connecting piece 1, a terminal 2, a sealing piece 3 and a cable 4, wherein the connecting piece 1 is in the shape of a hollow cylinder with both front and rear ends being open, the connecting piece 1 includes a first cylinder portion 101 and a second cylinder portion 102, a notch 103 is provided on the cylinder wall of the first cylinder portion 101, the tail end of the terminal 2 is inserted into the first cylinder portion 101, and the tail end of the terminal 2 does not protrude outward from the notch 103; the sealing piece 3 is arranged at the tail end of the second cylinder portion 102, the sealing piece 3 includes an inner sealing layer 301 and an outer sealing layer 302, the cable 4 is inserted into the second cylinder portion 102 and is crimped into one with the tail end of the terminal 2, the connection between the cable 4 and the terminal 2 is located at the notch 103, the inner sealing layer 301 seals the gap between the cable 4 and the second cylinder portion 102, and the outer sealing layer 102 is attached to the outer wall of the second cylinder portion 102.

[0028] This solution connects the terminal 2, cable 4, and seal 3 into an integral component through the connector 1, which is convenient for quick assembly and automatic assembly with a robot. At the same time, the integration also makes the connection between the two terminals and the cable 4 tighter, so that it can withstand repeated plugging and unplugging during use and ensure the stability of use. A notch 103 is provided on the first barrel 101 of the connector 1 to expose the crimping point between the terminal 2 and the cable 4, so that it can be checked and maintained after being pulled out as a whole.

[0029] The seal 3 is an integral component, and the seal 3 is coated on the end of the connector 1 by a rubber coating process to effectively ensure the connection stability between the two.

[0030] Specifically, the inner sealing layer 301 and the outer sealing layer 302 are connected via a group of connecting arms 303 , and a group of through holes 104 matching the connecting arms 303 are provided on the side wall of the second cylinder portion 102 , and the connecting arms 303 are inserted into the through holes 104 .

[0031] The tail end of the second barrel portion 102 has an end cover 105 whose outer diameter is larger than the outer diameter of the barrel body. The end cover 105 is connected to the tail end of the through hole 104 so that the inner sealing layer 301 is embedded in the second barrel portion 102 to enhance the connection stability between the seal 3 and the second barrel portion 102.

[0032] A limiting step surface 106 is provided on the inner wall of the second cylinder portion 102 , the front end surface of the inner sealing layer 301 abuts against the end cover 105 , and the rear end surface of the outer sealing layer 302 abuts against the limiting step surface 106 , to jointly limit the axial position of the seal 3 .

[0033] like Figure 2 and Figure 6 As shown, one side of the end cover 105 has an outwardly protruding ear 107. The ear 107 makes the end cover 105 non-circular, so as to facilitate the circumferential limitation of the connector 1 during assembly to prevent it from rotating.

[0034] The sealing member 3 seals the gap between the cable 4 and the connector 1 through the inner sealing layer 301. To ensure the sealing performance of the inner sealing layer 301, multiple sealing rings are provided on the inner wall of the inner sealing layer 301. Similarly, the outer sealing layer 302 is used to seal the outer wall of the connector after assembly, and multiple sealing rings are also provided on the outer wall of the outer sealing layer 302.

[0035] The notch 103 in this solution is provided to expose the crimping joint between the terminal 2 and the cable 4, so as to facilitate inspection and maintenance after the whole is pulled out. Preferably, the cross section of the barrel wall of the first barrel portion 101 is semicircular, and the side edge of the barrel wall of the first barrel portion 101 is perpendicular to the end edge of the barrel wall of the second barrel portion 102 to form the notch 103. That is, the first barrel portion 101 is cut in half along its diameter to maximize the opening width of the notch 103, thereby facilitating inspection and maintenance of the connection between the terminal 2 and the cable 4.

[0036] Further Figure 3-Figure 6 As shown, the present solution also discloses a socket, including a plug housing 5, wherein the plug housing 5 has a group of hollow jacks 501, and the specific number of the jacks 501 is set according to actual needs. In the illustrated embodiment, three parallel jacks 501 are set in the plug housing 5. Each of the jacks 501 is inserted with a connection terminal that is easy to assemble as described above, and the jacks 501 match the tail end of the connector 1. Specifically, the empty opening of the jack 501 is provided with a bayonet 503 that matches the ear 107, so that the ear 107 is clamped in the bayonet 503 to limit the circumferential position of the connection terminal, thereby playing an anti-rotation role.

[0037] A cover 6 is fixedly connected to the rear end of the plug shell 5, and the cover 6 limits the easily assembled connection terminal in the socket 501. A limiting hole 601 with a diameter smaller than that of the socket 501 is provided on the cover 6, and the limiting hole 601 abuts against the rear end of the connector 1 to limit the connection terminal. The cable 4 is inserted into the limiting hole 601, and the outer sealing layer 302 of the seal 3 seals the gap between the socket 501 and the connector 1.

[0038] Furthermore, a pair of elastic clips 201 are symmetrically arranged on the outer wall of the terminal 2, and a recess 502 matching the elastic clips 201 is arranged in the plug hole 501, and the elastic clips 201 are clamped in the recess 502. The structure of the clamping of the elastic clips 201 and the recess 502 plays a dual role of limiting the terminal 2 in both the circumferential and axial directions, so that the terminal 2 maintains a constant position in the plug hole 501 to ensure its connection stability.

[0039] The insert housing 5 is also provided with other holes and slots for installing other required structures, such as signal terminals, etc. This is a conventional design and is not the focus of this solution, so it will not be elaborated here.

[0040] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0041] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. Easy-to-assemble connection terminal, characterized by: The invention comprises a connecting piece (1), a terminal (2), a sealing piece (3) and a cable (4); the connecting piece (1) is in the shape of a hollow cylinder, with both front and rear ends being open; the connecting piece (1) comprises a first cylinder portion (101) and a second cylinder portion (102); a notch (103) is provided on the cylinder wall of the first cylinder portion (101); the tail end of the terminal (2) is inserted into the first cylinder portion (101), and the tail end of the terminal (2) does not protrude from the notch (103); the sealing piece (3) is arranged on the second cylinder portion The sealing member (3) is provided at the rear end of the second barrel (102), the sealing member (3) comprising an inner sealing layer (301) and an outer sealing layer (302), the cable (4) is inserted into the second barrel (102) and is crimped together with the rear end of the terminal (2), the connection between the cable (4) and the terminal (2) is located at the notch (103), the inner sealing layer (301) seals the gap between the cable (4) and the second barrel (102), and the outer sealing layer (302) is attached to the outer wall of the second barrel (102).

2. The easily assembled connecting terminal according to claim 1, characterized in that: The inner sealing layer (301) and the outer sealing layer (302) are connected via a group of connecting arms (303); a group of through holes (104) matching the connecting arms (303) are provided on the side wall of the second cylinder portion (102); and the connecting arms (303) are inserted into the through holes (104).

3. The easy-to-assemble connecting terminal according to claim 2, characterized in that: The tail end of the second barrel portion (102) has an end cover (105) whose outer diameter is greater than the outer diameter of the barrel body, and the end cover (105) is connected to the tail end of the through hole (104).

4. The easily assembled connecting terminal according to claim 3, characterized in that: One side of the end cover (105) has an outwardly protruding ear portion (107).

5. The easily assembled connecting terminal according to claim 4, characterized in that: A limiting step surface (106) is provided on the inner wall of the second cylinder portion (102), the front end surface of the inner sealing layer (301) abuts against the end cover (105), and the rear end surface of the outer sealing layer (302) abuts against the limiting step surface (106), so as to jointly limit the position of the sealing element (3).

6. The easily assembled connecting terminal according to claim 5, characterized in that: Multiple-stage sealing rings are provided on the inner wall of the inner sealing layer (301) and the outer wall of the outer sealing layer (302).

7. The easily assembled connecting terminal according to claim 6, characterized in that: The cross section of the barrel wall of the first barrel portion (101) is semicircular, and the side edge of the barrel wall of the first barrel portion (101) is perpendicular to the end edge of the barrel wall of the second barrel portion (102) to form the notch (103).

8. A socket, characterized in that: The invention comprises a plug housing (5), wherein the plug housing (5) has a group of hollow jacks (501), each of the jacks (501) is inserted with a connection terminal that is easy to assemble as claimed in any one of claims 1 to 7, the jacks (501) match the rear end of the connector (1), a cover (6) is fixedly connected to the rear end of the plug housing (5), the cover (6) limits the connection terminal that is easy to assemble in the jacks (501), the cover (6) is provided with a limiting hole (601) having a diameter smaller than that of the jack (501), the limiting hole (601) abuts against the rear end of the connector (1), the cable (4) is passed through the limiting hole (601), and the outer sealing layer (302) of the sealing member (3) seals the gap between the jack (501) and the connector (1).

9. The socket according to claim 8, characterized in that: A pair of elastic clamping strips (201) are symmetrically arranged on the outer wall of the terminal (2); a recess (502) matching the elastic clamping strip (201) is provided in the insertion hole (501); and the elastic clamping strip (201) is clamped in the recess (502).

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