WO2022179290A1

WO2022179290A1 - High and low voltage integrated electrical connector

Info

Publication number: WO2022179290A1
Application number: PCT/CN2021/142155
Authority: WO
Inventors: 张长涛; 张天强; 王国强; 马云天; 王微; 顾家闻; 慈伟程; 曲振宁; 李威
Original assignee: 中国第一汽车股份有限公司
Priority date: 2021-02-26
Filing date: 2021-12-28
Publication date: 2022-09-01
Also published as: CN113036501A; CN113036501B

Abstract

Disclosed in embodiments of the present application is a high and low voltage integrated electrical connector. According to the high and low voltage integrated electrical connector of the embodiments of the present application, a high-voltage high current is transmitted by using first high voltage conductive members and second high voltage conductive members, a high-voltage low current is transmitted by using a high-voltage terminal jack group and a high-voltage terminal pin group, and a low-voltage signal is transmitted by using a low-voltage terminal jack group and a low-voltage terminal pin group.

Description

High and low voltage integrated electrical connector

This application claims the priority of the Chinese patent application with application number 202110221057.4 filed with the China Patent Office on February 26, 2021, the entire contents of the above application are incorporated into this application by reference.

technical field

The present application relates to the technical field of vehicles, for example, to a high and low voltage integrated electrical connector.

Background technique

In the new energy vehicle power battery, the high-voltage connector is a key component of the high-voltage power transmission connection, which is responsible for the high-voltage connection between the power battery and the high-voltage assembly. The high-voltage connection solutions commonly used for power batteries and high-voltage assemblies are mostly high-voltage connection sockets at the board end and high-voltage connection plugs at the harness end. And the high-current high-voltage connectors connected to the power battery output are mostly 2-hole or single-hole, and there is no low-voltage connection.

With the progress and development of society, in order to meet the diverse needs of drivers, there are more and more on-board electrical appliances, and this traditional high-voltage connector can no longer meet the needs.

SUMMARY OF THE INVENTION

The embodiment of the present application discloses a high and low voltage integrated electrical connector, comprising:

A first connecting plate, a composite conductive member and two or more first high-voltage conductive members are passed through the first connecting plate, and the composite conductive member includes a composite input end and a composite output end, the composite output end includes a low-voltage terminal jack group and a high-voltage terminal jack group; each of the two or more first high-voltage conductive parts includes a set of two or more first high-voltage conductive parts respectively located in the first connection a first high-voltage input end and a first high-voltage output end on both sides of the plate, the composite input end and the first high-voltage input end are located on the same side of the first connection plate;

a second connecting plate, more than two second high-voltage conductive parts are pierced through the second connecting plate, and each of the two or more second high-voltage conductive parts includes a The second high-voltage input end and the second high-voltage output end on both sides of the second connection board, the second high-voltage input end is set to be plugged in one-to-one correspondence with the first high-voltage output end; more than two of the first high-voltage output end The high-voltage conductive member and two or more of the second high-voltage conductive members are respectively sheet-type structures; one of the second connecting plate and the first connecting plate is provided with a guide shaft, and the second connecting plate and the The other one of the first connecting plates is provided with a guide hole matched with the guide shaft;

A composite connection plug is inserted into the composite output end; the composite connection plug includes a low-voltage terminal pin group matched with the low-voltage terminal jack group and a high-voltage terminal pin group matched with the high-voltage terminal jack group Needle set.

Description of drawings

1 is a schematic structural diagram of a high and low voltage integrated electrical connector in an embodiment of the application;

2 is a schematic structural diagram of one side of a high and low voltage integrated electrical connector in an embodiment of the present application;

3 is a schematic structural diagram of the other side of the high and low voltage integrated electrical connector in the embodiment of the present application;

FIG. 4 is a schematic structural diagram of one side of the first connecting plate in the embodiment of the application;

FIG. 5 is a schematic structural diagram of the other side of the first connecting plate in the embodiment of the present application;

FIG. 6 is a schematic structural diagram of one side of the second connecting plate in the embodiment of the present application;

FIG. 7 is a schematic structural diagram of the other side of the second connection board in the embodiment of the present application.

Reference number:

1. The first connecting plate; 11. The composite conductive member; 111, the composite input end; 112, the composite output end; 12, the first high-voltage conductive member; 121, the first high-voltage input end; 13, guide hole; 14, first reinforcing rib; 15, first sealing member; 2, second connecting plate; 21, second high voltage conducting member; 211, second high voltage input end; 212, The second high-voltage output end; 2121, the second jack; 22, the guide shaft; 23, the second reinforcing rib; 24, the second seal; 25, the main escape hole; 3, the composite connection plug; 31, the low voltage terminal pin group; 32, high voltage terminal pin group; 4, metal frame; 41, bolts; 42, snap connection structure; 43, avoid installation holes; 5, fasteners.

Detailed ways

The following description will be made with reference to the accompanying drawings in the embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the drawings may be arranged and designed in different configurations.

Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

Like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it is not defined and explained in subsequent figures.

In the description of the present application, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the attached The orientation or positional relationship shown in the figure, or the orientation or positional relationship that the product of the application is usually placed in use, is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, construct and operate in a specific orientation. Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance. In the description of this application, "plurality" means two or more.

In the description of this application, unless otherwise expressly specified and limited, the terms "arrangement" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a A mechanical connection can also be an electrical connection. For those of ordinary skill in the art, the meanings of the above terms in the present application can be understood in combination with the actual situation.

In this application, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

Embodiments of the present application are described below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are only used to explain the present application.

As shown in FIGS. 1-7 , an embodiment of the present application discloses a high and low voltage integrated electrical connector, which includes a first connection board 1 , a second connection board 2 and a composite connection plug 3 . The conductive member 11 and two or more first high-voltage conductive members 12. The composite conductive member 11 includes a composite input end 111 and a composite output end 112 located on both sides of the first connecting plate 1, respectively, and the composite output end 112 includes a low-voltage terminal jack group. and a high-voltage terminal jack group; the two or more first high-voltage conductive members 12 each include a first high-voltage input end 121 and a first high-voltage output end 122 located on both sides of the first connecting plate 1, respectively, and the composite input end 111 and the first high-voltage output end 122. The high-voltage input end 121 is located on the same side of the first connection board 1; the second connection board 2 is provided with more than two second high-voltage conductive parts 21, and the two or more second high-voltage conductive parts 21 are respectively located in the second high-voltage conductive parts 21. The second high-voltage input end 211 and the second high-voltage output end 212 on both sides of the connection board 2, the second high-voltage input end 211 can be connected with the first high-voltage output end 122 in one-to-one correspondence; two or more first high-voltage conductive members 12 Both the two or more second high-voltage conductive members 21 are of sheet-type structure; one of the second connecting plate 2 and the first connecting plate 1 is provided with a guide shaft 22, The other is provided with a guide hole 13 matching the guide shaft 22; the composite connection plug 3 is inserted into the composite output end 112; the composite connection plug 3 includes a low-voltage terminal pin group 31 matching the low-voltage terminal jack group and a high-voltage terminal The jack group matches the high voltage terminal pin group 32.

For example, the second high-voltage input terminal 211 can be plugged into the first high-voltage output terminal 122 one-to-one between the first connection board 1 and the second connection board 2, and the composite connection plug 3 can be plugged into the composite output terminal 112. The assembly-to-assembly plug-in form reduces wire harness crimping assembly and improves assembly efficiency. The first high-voltage conductive member 12 and the second high-voltage conductive member 21 are used to transmit high-voltage and large current (above 150A), the high-voltage terminal jack group and the high-voltage terminal pin group 32 transmit high-voltage small current (about 30A), and the low-voltage terminal jack group and the The low-voltage terminal pin group 31 transmits low-voltage signals, has a high degree of integration, and meets the diverse needs of on-board electrical appliances. The first high-voltage conductive member 12 and the second high-voltage conductive member 21 for transmitting large current are both chip structures, which reduces the overall size and weight of the electrical connector. At the same time, the guide shaft 22 is used to cooperate with the guide hole 13 to ensure the accurate centering during the insertion process and improve the assembly efficiency. For example, the guide shafts 22 and the guide holes 13 are arranged in two pairs, which can ensure that the first connecting plate 1 and the second connecting plate 2 are connected more accurately and inserted more smoothly.

In one embodiment, the first connecting plate 1 and the second connecting plate 2 are both made of insulating materials, and the outer sides of the first connecting plate 1 and the second connecting plate 2 are both provided with a metal outer frame 4, and the metal outer frame 4 and The first connecting plate 1 or the second connecting plate 2 can be detachably connected. A metal outer frame 4 is sleeved on the outer sides of the first connecting plate 1 and the second connecting plate 2 made of insulating material, and the metal outer frame 4 is fixedly connected with the first connecting plate 1 and the second connecting plate 2 by bolts 41. The frame 4 increases the strength of the first connection board 1 and the second connection board 2, avoids damage caused by multiple insertion and removal, and can prolong the service life of the high and low voltage integrated electrical connectors.

In one embodiment, a plurality of snap connection structures 42 are provided on the peripheral side of the metal outer frame 4 . The snap connection structure 42 of the metal outer frame 4 is used for snap connection with the battery assembly or the all-in-one assembly, which is convenient for installation and further strengthens.

In one embodiment, in order to ensure that the first connecting plate 1 or the second connecting plate 2 is closely attached to the metal outer frame 4, an avoidance mounting hole 43 is provided in the corresponding position of the metal outer frame 4, so that the first connecting plate 1 and the first connecting plate 1 and the second connecting plate 2 are closely attached. The structure on the second connecting plate 2 is avoided. The avoidance mounting hole 43 may be a through hole or a blind hole, as long as it can play the role of avoidance mounting.

In one embodiment, a plurality of fasteners 5 are provided on both the first connecting plate 1 and the second connecting plate 2 . The first connecting plate 1 and the battery assembly are fixedly connected by the fasteners 5, and the second connecting plate 2 and the vehicle all-in-one assembly can also be fixedly connected by using the fasteners 5, and then the first connecting plate 1 and the The two connecting boards 2 are fixed to ensure a stable plug-in relationship.

In this embodiment, the number of the first high-voltage conductive members 12 and the second high-voltage conductive members 21 are both four, and the four first high-voltage output terminals 122 and the four second high-voltage input terminals 211 are connected in one-to-one correspondence; The low-voltage terminal jack group includes twelve low-voltage terminal jacks, the low-voltage terminal pin group 31 includes twelve low-voltage terminal pins, and the twelve low-voltage terminal jacks and the twelve low-voltage terminal pins are inserted in one-to-one correspondence The high-voltage terminal jack group includes two high-voltage terminal jacks, the high-voltage terminal pin group 32 includes two high-voltage terminal pins, and the two high-voltage terminal jacks and the two high-voltage terminal pins are inserted in one-to-one correspondence.

Correspondingly, the four first high-voltage input ends 121 are matched with the four second high-voltage output ends 212 , and the first high-voltage input ends 121 and the second high-voltage output ends 212 are both provided with jacks. The first high-voltage input end 121 is provided with a first jack 1211, and the apertures of the first jacks 1211 on different first high-voltage input ends 121 may be the same or different; the second high-voltage output end 212 is provided with a second jack 2121, the hole diameter of the second jack 2121 is the same as that of the corresponding first jack 1211.

In one embodiment, reinforcing ribs are provided on the peripheral sides of the composite conductive member 11 , the first high-voltage conductive member 12 and the second high-voltage conductive member 21 . As shown in FIG. 4 , first reinforcing ribs 14 are provided on the peripheral sides of the composite conductive member 11 and the first high-voltage conductive member 12 on the first connecting plate 1 . For example, the first reinforcing ribs 14 include transverse reinforcing ribs arranged in a crisscross pattern. and longitudinal reinforcing ribs, thereby making the strength of the first connecting plate 1 greater. The first reinforcing rib 14 can also play a supporting role for the composite conductive member 11 and the first high-voltage conductive member 12, so as to protect them from damage due to uneven force during insertion and prolong their service life. As shown in FIG. 7 , a second reinforcing rib 23 is provided on the peripheral side of the second high-voltage conductive member 21 on the second connecting plate 2 . The second reinforcing rib 23 can not only increase the strength of the second connecting plate 2 The high-voltage conductive member 21 plays a supporting role to protect it from being damaged due to uneven force during insertion and prolong its service life.

In one embodiment, the first connecting plate 1 and the second connecting plate 2 are both provided with sealing members, and the sealing members are located on the same side as the first high-voltage input end 121 or the second high-voltage output end 212 . As shown in FIG. 4 , a first sealing member 15 is provided on the first connecting plate 1 , and the first sealing member 15 is located on the same side as the first high-voltage input end 121 , that is, the first sealing member 15 is located between the first connecting plate 1 and the battery Between the assemblies, and the first sealing member 15 is surrounded by the edge of the first connecting plate 1, when the first connecting plate 1 and the battery assembly are fixedly connected, the first sealing member 15 can be used to seal the gap between the two. Gap sealing. As shown in FIG. 7 , the second connecting plate 2 is provided with a second sealing member 24 , and the second sealing member 24 is located on the same side as the second high-voltage output end 212 , that is, the second sealing member 24 is located on the second connecting plate 2 and the multiple Between the all-in-one assembly, and the second sealing member 24 is surrounded by the edge of the second connecting plate 2, when the second connecting plate 2 is fixedly connected with the all-in-one assembly, the second sealing member 24 can be used to seal the two parts. The gap between them is sealed.

In one embodiment, the sealing member is an annular structure, the sealing member of the annular structure forms a closed loop, and the sealing effect is better.

In one embodiment, the first connecting plate 1 and the second connecting plate 2 are both provided with installation shafts, and the seals are arranged on the axial surfaces of the corresponding installation shafts. Putting the seal on the axial surface of the installation shaft not only has a good sealing effect, but also does not increase the thickness of the second connecting plate 2 excessively, and has the effect of reducing the volume of the high and low voltage integrated electrical connector.

In one embodiment, as shown in FIG. 6 and FIG. 7 , since the insertion of the pins and the jacks requires high accuracy, in order to ensure the efficiency and accuracy of the insertion, the composite connection plug 3 is set as a split structure, For easy manual alignment. The second connection plate 2 is provided with a main escape hole 25 , and the composite connection plug 3 is inserted into the main escape hole 25 .

The embodiment of the present application discloses a high and low voltage integrated electrical connector, which reduces wire harness crimping assembly, improves assembly efficiency, and significantly reduces the volume and weight of the electrical connector.

Compared with the related art, the beneficial effects of the embodiments of the present application:

The high and low voltage integrated electrical connector of the embodiment of the present application includes a first connecting plate, a second connecting plate and a composite connecting plug. The first connecting plate is provided with a composite conductive member and two or more first high-voltage conductive members. The conductive member includes a composite input end and a composite output end respectively located on both sides of the first connecting plate, and the composite output end includes a low-voltage terminal jack group and a high-voltage terminal jack group; the first high-voltage conductive members include two respectively located on the first connecting plate. The first high-voltage input end and the first high-voltage output end on the side, the composite input end and the first high-voltage input end are located on the same side of the first connecting plate; the second connecting plate is provided with more than two second high-voltage conductive parts, Each of the second high-voltage conductive parts includes a second high-voltage input end and a second high-voltage output end respectively located on both sides of the second connecting plate, and the second high-voltage input end can be connected to the first high-voltage output end in a one-to-one correspondence; The component and the second high-voltage conductive component are both sheet-type structures; one of the second connecting plate and the first connecting plate is provided with a guide shaft, and the other of the second connecting plate and the first connecting plate is provided with a guide shaft matching the guide shaft. The guide hole; the composite connection plug is inserted into the composite output end; the composite connection plug includes a low-voltage terminal pin group matched with the low-voltage terminal jack group and a high-voltage terminal pin group matched with the high-voltage terminal jack group. The high and low voltage integrated electrical connector adopts the form of assembly-to-assembly plug-in, which reduces the wiring harness crimping assembly and improves the assembly efficiency. The first high-voltage conductive member and the second high-voltage conductive member are used to transmit high-voltage and large current, the high-voltage terminal jack group and the high-voltage terminal pin group are used to transmit high-voltage small current, and the low-voltage terminal jack group and the low-voltage terminal pin group are used to transmit low-voltage signals. High level, to meet the diverse needs of vehicle electrical appliances. Both the first high-voltage conductive member and the second high-voltage conductive member for transmitting large currents are in a chip structure, which reduces the overall size and weight of the electrical connector. At the same time, the guide shaft is used to cooperate with the guide hole to ensure the accurate centering during the insertion process and improve the assembly efficiency.

Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. Therefore, although the present application has been described through the above embodiments, the present application is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the inventive concept of the present application. The scope is determined by the scope of the appended claims.

Claims

A high and low voltage integrated electrical connector, comprising:

A first connecting plate (1), on which a composite conductive member (11) and two or more first high-voltage conductive members (12) are perforated, and the composite conductive member (11) includes A composite input end (111) and a composite output end (112) respectively located on both sides of the first connecting plate (1), the composite output end (112) includes a low-voltage terminal jack group and a high-voltage terminal jack group; two Each of the more than one first high-voltage conductive parts (12) includes a first high-voltage input end (121) and a first high-voltage input end (121) located on both sides of the first connecting plate (1) respectively. a high-voltage output terminal (122), the composite input terminal (111) and the first high-voltage input terminal (121) are located on the same side of the first connection board (1);

A second connecting plate (2), the second connecting plate (2) is provided with two or more second high-voltage electrical conductors (21), and one of the two or more second high-voltage electrical conductors (21) Each second high-voltage conductive member (21) includes a second high-voltage input end (211) and a second high-voltage output end (212) located on both sides of the second connecting plate (2), respectively, and the second high-voltage input end (211) is configured to be plugged in one-to-one correspondence with the first high-voltage output terminals (122); two or more of the first high-voltage conductive parts (12) and two or more of the second high-voltage conductive parts (21) ) are respectively sheet-type structures; one of the second connecting plate (2) and the first connecting plate (1) is provided with a guide shaft (22), and the second connecting plate (2) and the first connecting plate (1) are provided with a guide shaft (22). The other one of the connecting plates (1) is provided with a guide hole (13) matching with the guide shaft (22);

A composite connection plug (3), which is inserted into the composite output end (112); the composite connection plug (3) includes a low-voltage terminal pin group (31) matching the low-voltage terminal jack group and a low-voltage terminal pin group (31) matched with the low-voltage terminal jack group. The high-voltage terminal pin group (32) matched with the high-voltage terminal jack group.
The high and low voltage integrated electrical connector according to claim 1, wherein the composite conductive member (11), the two or more first high voltage conductive members (12) and the two or more second high voltage conductive members The peripheral sides of the piece (21) are respectively provided with reinforcing ribs.
The high and low voltage integrated electrical connector according to claim 1, wherein a plurality of fasteners (5) are respectively provided on the first connecting plate (1) and the second connecting plate (2).
The high and low voltage integrated electrical connector according to claim 1, wherein a main escape hole (25) is provided on the second connection plate (2), and the composite connection plug (3) is passed through the main escape hole (25). inside the hole (25).
The high and low voltage integrated electrical connector according to claim 1, wherein the first high voltage input end (121) and the second high voltage output end (212) are respectively provided with jacks.
The high and low voltage integrated electrical connector according to any one of claims 1-5, wherein sealing members are respectively provided on the first connecting plate (1) and the second connecting plate (2), and the sealing The component is located on the same side as the first high-voltage input end (121) or the second high-voltage output end (212).
The high and low voltage integrated electrical connector according to any one of claims 1 to 5, wherein the first connecting plate (1) and the second connecting plate (2) are respectively provided with sealing members, which are provided at the The sealing member on the first connecting plate (1) is located on the same side as the first high-voltage input end (121), and the sealing member provided on the second connecting plate (2) is on the same side as the first high-voltage input end (121). The two high-voltage output terminals (212) are located on the same side.
The high and low voltage integrated electrical connector according to claim 6 or 7, wherein the sealing member is an annular structure.
The high and low voltage integrated electrical connector according to claim 6 or 7, wherein the first connecting plate (1) and the second connecting plate (2) are respectively provided with installation shafts, and the sealing member is disposed on the Corresponding to the axial surface of the mounting shaft.
The high and low voltage integrated electrical connector according to any one of claims 1-5, wherein the first connecting plate (1) and the second connecting plate (2) are respectively made of insulating materials, and the first connecting plate (1) and the second connecting plate (2) are respectively made of insulating materials. A connecting plate (1) and the outer side of the second connecting plate (2) are respectively provided with a metal outer frame (4), the metal outer frame (4) and the first connecting plate (1) or the first connecting plate (1) The two connecting plates (2) are detachably connected.
The high and low voltage integrated electrical connector according to claim 10, wherein a plurality of snap connection structures (42) are provided on the outer peripheral side of the metal outer frame (4).