A stepped side-bend high-voltage connector

Abstract

The present application relates to a stepped side-bending high-voltage connector in the technical field of electric vehicle connectors, comprising a housing, a copper busbar, a wire nose, a shielding kit, a cable, a cable waterproof ring and a tail cover, wherein the copper busbar and the cable are perpendicular to each other, and the copper busbar, the wire nose and the cable are sequentially connected to form a connection assembly, and the connection assembly is provided with multiple groups, and the multiple groups of connection assemblies are distributed in a "╔" shape. The present invention makes the connection between the wire and the cable a vertical connection, and does not have at least two or more bends as in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of electric vehicle connectors, and in particular to a stepped side-bend high-voltage connector. Background Art

[0002] Electric vehicles are gaining more and more attention from automobile manufacturers due to their wide range of energy sources, quiet driving, and zero pollution emissions, and they are being launched one after another for home use.

[0003] At present, most of the connectors of electric vehicles on the market adopt a straight head structure or an elbow structure. If the connector adopts a straight head structure, its overall length is longer and occupies more space; if the elbow structure is adopted, although its overall length is shortened relative to the straight head structure, it still occupies more space due to its larger handle. For example, a two-core through-hole metal high-voltage connector disclosed in Chinese patent CN109103681A, specifically looking at the drawings of the patent, includes a shell, a back cover, a lower rubber core, a copper bar, a wire nose, a side rubber core, a shielding kit, a cable waterproof ring, a tail cover, a lower sealing ring and an upper sealing ring. An assembly cavity adapted to the lower rubber core is vertically provided on the front of the shell, and an opening is provided on the bottom surface of the assembly cavity. The lower rubber core is arranged in the assembly cavity. An assembly cylinder adapted to the side rubber core is horizontally provided at the rear of the shell. The assembly cylinder is connected to the assembly cavity, and a side-mounted structure is adopted so that the copper bar is side-mounted on the shell. However, since the two copper bars are installed sideways on the outer casing, and the two copper bars and the cables vertically connected to them are arranged side by side, when connecting, because the wiring method is front-to-back wiring, the wire tail will be bent twice when it is pointed downward. Since the bend of the wire tail is too large, the waterproof glue will tilt to one side, which will affect the waterproof performance and easily damage the cable. Summary of the invention

[0004] The present invention is intended to provide a stepped side-bending high-voltage connector to solve the problem of excessive bending of the wire tail in the prior art high-voltage connector due to the copper bus and the cable vertically connected thereto being arranged side by side.

[0005] The stepped side-bend high-voltage connector of the present invention comprises a housing, a copper busbar, a wire nose, a shielding kit, a cable, a cable waterproof ring and a tail cover. The copper busbar and the cable are perpendicular to each other. The copper busbar, the wire nose and the cable are connected in sequence to form a connection component. The connection component is provided in multiple groups, and the multiple groups of connection components are distributed in a "╔" shape.

[0006] More specifically, the copper busbar includes a long copper busbar and a short copper busbar, and also includes an upper rubber core, a lower rubber core, a long rubber core and a short rubber core. An assembly cavity compatible with the long rubber core and the short rubber core is vertically provided at the lower part of the shell, and an opening is provided on the bottom surface of the assembly cavity. The long rubber core and the short rubber core are horizontally arranged side by side in the assembly cavity, and the outer sleeves of the long rubber core and the short rubber core are provided with a waterproof ring; an assembly cylinder compatible with the upper rubber core and the lower rubber core is vertically provided on the side of the shell, and the upper rubber core and the lower rubber core are arranged side by side in the assembly cylinder, and the assembly cylinder is connected with the assembly cavity, and cables are vertically connected in the upper rubber core and the lower rubber core, and the tail cover is sleeved on the cable and closes the opening of the assembly cylinder, and a cable waterproof ring is provided on the tail cover and the cable; one end of the long copper busbar is vertically arranged in the long rubber core and connected to the battery core of the cable through a wire nose, and the other end of the long copper busbar is located outside the shell; one end of the short copper busbar is vertically arranged in the short rubber core and connected to the battery core of the cable through a wire nose, and the other end of the short copper busbar is located outside the shell.

[0007] As a preferred solution, the shielding kit is sleeved on the cable and located between the cable nose and the cable waterproof ring.

[0008] Furthermore, the shielding kit includes a shielding ring and a shielding pressure ring.

[0009] Furthermore, the wire nose is connected to the copper busbar via bolts, a screw cover for encapsulating the outer shell is provided on the bolt, and an O-ring is provided on the screw cover.

[0010] Furthermore, the bolt is provided with a middle rubber core for insulating the bolt.

[0011] Furthermore, the stepped side-bend high-voltage connector is connected to a mounting panel, a mounting hole is provided on the housing, and a mounting bolt threadedly connected to the mounting panel is provided in the mounting hole.

[0012] The working principle of the present invention, the high-voltage connector of the present invention is based on the prior art such as the 90-degree vertical connector disclosed in CN109103681A, which cannot solve the problem of sequential connection after two or more front and rear points are plugged in, and has a large bending pressure on the wire tail. The arrangement of the connecting components is innovatively set to a stepped shape, that is, one group of connecting components is arranged outside another group of connecting components to form a "╔" structure, and multiple groups of connecting components are sequentially connected to form multiple overlapping "╔" structures, so that the connection between the wire and the cable is a vertical connection, and there will be no at least two bends as in the prior art.

[0013] Beneficial effects of the present invention: The high-voltage connector of the present invention has a very thin shell through the side-bending connection installed in a stepped manner left, right, up and down, which can greatly reduce the area of ​​the shell. Secondly, the wires and cables are vertically connected, and there is no problem of bending the wire tails. Since the wire tails are not bent, the space occupied is correspondingly reduced; thirdly, since the wire tails are not bent, there will be no impact on the waterproof glue, and the waterproof performance can be guaranteed; fourthly, since the wire tails are not bent, the safety and stability of the current and voltage are enhanced; fifthly, since the wire tails are not bent, the risk of the wire skin bursting in a high temperature environment is reduced.

[0014] In summary, the structural setting of the present application can solve the problem of wire tail bending, thereby avoiding a series of adverse effects caused by wire tail bending.

[0015] In order to facilitate the understanding of the present application, the present application also provides an installation method of the high voltage connector, which is as follows:

[0016] a) Install the nut and screw spring washer at the bottom of the rear rubber core;

[0017] b) Install the lower rubber core straight down from the top of the shell, and then push it into place in the direction of the outlet;

[0018] c) Install the rubber core from the outlet direction of the shell to the front, and then buckle the rubber core with the front rubber core in the shell;

[0019] d) Press the upper rubber core straight down from the top of the shell to fix the front rubber core to form a round rubber core insulated from the shell;

[0020] e) Put the waterproof ring on the waterproof ring position of the mounting flange of the shell;

[0021] f) Install the short rubber core and the long rubber core in the flange direction of the shell and assemble them with the rubber core;

[0022] g) Strip the cables;

[0023] h) Put the tail cover on the cable, then put on the cable waterproof ring, then put on the shielding pressure ring, and then put on the shielding ring;

[0024] i) Then crimp the wire nose to the cable;

[0025] j) Then crimp the tail cover and shielding ring with the wires threaded through them;

[0026] k) Insert the pressed wire harness into the shell assembled with the outer shell and rubber core;

[0027] l) Then buckle the tail cover;

[0028] m) Insert the long copper bar and the short copper bar into the long rubber core and the short rubber core, and align the holes with the wire nose inside the shell;

[0029] n) Use nuts to lock the long copper bar, short copper bar and wire nose;

[0030] o) Then buckle the middle rubber core;

[0031] p) Put the O-ring on the screw cover;

[0032] q) Install the screw cover and the housing by threading;

[0033] r) The installation panel shows the installation position of the stepped side-bend high-voltage connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of a stepped side-bend high-voltage connector of the present invention;

[0035] Figure 2 It is a schematic diagram of assembling the stepped side-bend high-voltage connector of the present invention;

[0036] Figure 3 It is a simple diagram of the connection method between the prior art and the wire of the present application. DETAILED DESCRIPTION

[0037] The following is further described in detail through specific implementation methods:

[0038] The figure marks in the drawings of the specification include: screw cover A, O-ring B, middle rubber core C, bolt D, lower rubber core E, upper rubber core F, nut G, wire nose H, shielding ring I, shielding pressure ring J, cable waterproof ring K, tail cover L, lower cable M, upper cable N, installation panel W, screw spring washer 1, outer shell 2, installation bolt 3, waterproof ring 4, long rubber core 5, long copper busbar 6, short copper busbar 7, short rubber core 8, round rubber core 9.

[0039] Embodiment 1 is basically as attached Figure 1 and Figure 2 As shown: a stepped side-bend high-voltage connector, including a shell 2, a copper busbar, a wire nose H, a shielding kit, a lower cable M, an upper cable N, a cable waterproof ring K and a tail cover L, the shielding kit is sleeved on the lower cable M and the upper cable N and is located between the wire nose H and the cable waterproof ring K, the shielding kit includes a shielding ring I and a shielding pressure ring J, the copper busbar and the lower cable M and the upper cable N are perpendicular to each other, wherein the copper busbar and the wire nose H are respectively connected to the lower cable M and the upper cable N in sequence to form a connection assembly, and the two groups of connection assemblies are distributed in a "╔" shape.

[0040] More specifically, the stepped side-bend high-voltage connector also includes an upper rubber core F, a lower rubber core E, a long rubber core 5 and a short rubber core 8. An assembly cavity adapted to the long rubber core 5 and the short rubber core 8 is vertically provided at the lower part of the shell 2, and an opening is provided on the bottom surface of the assembly cavity. The long rubber core 5 and the short rubber core 8 are horizontally arranged side by side in the assembly cavity, and a waterproof ring 4 is provided on the outer sleeve of the long rubber core 5 and the short rubber core 8; an assembly cylinder adapted to the upper rubber core F and the lower rubber core E is vertically provided on the side of the shell 2, and the upper rubber core F and the lower rubber core E are arranged side by side in the assembly cylinder, and the assembly cylinder is connected with the assembly cavity, and the lower cable M and the upper cable N are vertically connected in the upper rubber core F and the lower rubber core E, and the tail cover L is sleeved on the lower cable M and the upper cable N, and closes the opening of the assembly cylinder, and the tail cover L A cable waterproof ring K is provided on the lower cable M and the upper cable N; one end of the long copper busbar 6 is vertically arranged in the long rubber core 5 and connected to the battery core of the upper cable N through a wire nose H, and the other end of the long copper busbar 6 is located outside the outer shell 2; one end of the short copper busbar 7 is vertically arranged in the short rubber core 8 and connected to the battery core of the lower cable M through a wire nose H, a round rubber core 9 is provided between the wire nose H and the outer shell 2, the other end of the short copper busbar 7 is located outside the outer shell 2, and the wire nose H is connected to the copper busbar through a bolt D, a screw cover A for encapsulating the outer shell 2 is provided on the bolt D, an O-ring B is provided on the screw cover A, a middle rubber core C for insulating the bolt D is provided on the bolt D, a mounting hole is provided on the outer shell 2, and a mounting bolt 3 threadedly connected to the mounting panel W is provided in the mounting hole.

[0041] The installation method of the stepped side-bend high-voltage connector is as follows:

[0042] a) Install the nut G and screw spring washer 1 at the bottom of the rear rubber core F;

[0043] b) Install the lower rubber core E straight down from the top of the housing 2, and then push it into place in the direction of the outlet;

[0044] c) Install the round rubber core 9 from the outlet direction of the housing 2 to the front, and then buckle the round rubber core 9 with the front rubber core E in the housing 2;

[0045] d) Press the upper rubber core F straight down from the top of the housing 2 and fix the front rubber core E to form a round rubber core 9 insulated from the housing 2;

[0046] e) Put the waterproof ring 4 on the waterproof ring position of the mounting flange of the housing 2;

[0047] f) Install the short rubber core 8 and the long rubber core 5 in the flange direction of the housing 2 and assemble them with the round rubber core 9;

[0048] g) Strip the lower cable M and the upper cable N;

[0049] h) Put the tail cover L on the lower cable M and the upper cable N, then put on the cable waterproof ring K, then put on the shielding pressure ring J, and then put on the shielding ring I;

[0050] i) Then crimp the cable lug H to the lower cable M and the upper cable N respectively;

[0051] j) Then crimp the tail cover L and shielding ring I with the wires threaded;

[0052] k) inserting the pressed wire harness into the shell formed by the outer shell 2 and the round rubber core 9;

[0053] l) Then buckle up the tail cover L;

[0054] m) Insert the long copper bar 6 and the short copper bar 7 into the long rubber core 5 and the short rubber core 8, and align the holes with the wire nose H inside the housing 2;

[0055] n) Use nut G to lock the long copper bar 6, short copper bar 7 and wire nose H;

[0056] o) Then buckle the middle rubber core C;

[0057] p) Put the O-ring 4 on the screw cover A;

[0058] q) Install the screw cover A and the outer shell 2 together;

[0059] r) Installation panel W indicates the installation position.

[0060] In order to facilitate the understanding of the beneficial effects of the present invention, the inventor provides Figure 3 , when the copper busbars are in the same direction, it can be clearly seen from the figure that the wire tail of the prior art has at least two bends, while the wire and cable of the present application are vertically connected and there is no problem of wire tail bending.

[0061] The only difference between Example 2 and Example 1 is that there are three groups of connection components.

[0062] The number of connection components of the present application can be set according to actual needs.

Claims

1. A stepped side-bend high-voltage connector, comprising a housing, a copper busbar, a wire nose, a shielding kit, a cable, a cable waterproof ring and a tail cover, characterized in that: The copper busbar and the cable are perpendicular to each other, and the copper busbar, the wire nose and the cable are connected in sequence to form a connection assembly. There are multiple groups of connection assemblies, and the multiple groups of connection assemblies are distributed in a "╔" shape; the copper busbar includes a long copper busbar and a short copper busbar, and the stepped side-bend high-voltage connector also includes an upper rubber core, a lower rubber core, a long rubber core and a short rubber core. The lower part of the shell is provided with an assembly cavity adapted to the long rubber core and the short rubber core, and the bottom surface of the assembly cavity is provided with an opening. The long rubber core and the short rubber core are horizontally arranged side by side in the assembly cavity, and the outer sleeves of the long rubber core and the short rubber core are provided with a waterproof ring; an assembly cylinder adapted to the upper rubber core and the lower rubber core is vertically provided on the side of the shell, and the upper rubber core and the lower rubber core are arranged side by side in the assembly cylinder, and the assembly cylinder and the assembly The matching cavities are interconnected, and cables are vertically connected in the upper rubber core and the lower rubber core. The tail cover is sleeved on the cable, and cable waterproof rings are provided on the tail cover and the cable; one end of the long copper bar is vertically arranged in the long rubber core and connected to the battery core of the cable through a wire nose, and the other end of the long copper bar is located outside the shell; one end of the short copper bar is vertically arranged in the short rubber core and connected to the battery core of the cable through a wire nose, and the other end of the short copper bar is located outside the shell; the shielding kit is sleeved on the cable and is located between the wire nose and the cable waterproof ring; the shielding kit includes a shielding ring and a shielding pressure ring; the wire nose is connected to the copper bar by bolts, and the bolts are provided with screw covers that encapsulate the shell; the bolts are provided with a middle rubber core for insulating the bolts.

2. The stepped side-bend high-voltage connector according to claim 1, characterized in that: The stepped side-bend high-voltage connector is connected to a mounting panel, a mounting hole is provided on the housing, and a mounting bolt threadedly connected to the mounting panel is provided in the mounting hole.

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