CN203631902U - Electric connector, low-voltage circuit control device and high-voltage interlocked electric connector assembly - Google Patents

Abstract

The utility model discloses an electric connector which comprises a housing. The housing is provided with an accommodating chamber which is internally provided with a low-voltage circuit control device. The electric connector is characterized in that: the low-voltage circuit control device is provided with a switching end and a connecting end; the connecting end is provided with two output terminals; each output terminal is electrically connected with a first metal pin; the switching pin is arranged in the accommodating chamber; and the first metal pins are projected from the external surface of the housing. According to a high-voltage interlocked electric connector provided by the utility model, connection of the low-voltage circuit switch to outside is realized through the first metal pins. If the lengths of the first metal pins are not enough, a connector can be inserted and the electric connection length is realized through a second metal pin.

Description

Electrical connectors, low-voltage circuit control devices and high-voltage interlock electrical connector components

technical field

The utility model relates to an electric connector, a low-voltage circuit control device and a high-voltage interlock electric connector assembly.

Background technique

Electrical connectors are widely used in industrial products, such as automotive electrical connectors. The function of the high-voltage interlock electrical connector is a special requirement in the field of automotive electrical connection, mainly two-stage separation (such as a 5-second pause) rule. Specifically, firstly, the low-voltage control circuit in the electrical connector is disconnected, and after a pause of about 5 seconds (during which, the electric energy stored in the high-voltage power supply or high-voltage device is released), the electrical connector is then disconnected High-voltage circuits in the middle, this functional requirement has been widely used in the North American automotive industry, and gradually accepted by the European automotive industry.

Low voltage circuits require a low voltage power supply. One of the high-voltage interlocking electrical connectors, the external connection of the low-voltage circuit is realized by the wire. It is difficult to set the length of the electrical connector connected by the swing line. Since the production of high-voltage interlock electrical connectors adopts a standardized assembly line, the dimensions and specifications of each component have the same standard. In the production process, if the length of the spinning line is too short, it cannot be used in some occasions. If the length of the spinning line is too long, not only is it inconvenient to transport and store, but also the spinning line needs to be cut when it is not needed. Therefore, no matter how the length of the swing line is set, the use of the connector with this structure is inconvenient.

Utility model content

One of the purposes of the present utility model is to provide an easy-to-use electrical connector in order to overcome the deficiencies in the prior art.

In order to achieve the above purpose, the utility model is realized through the following technical solutions:

The electrical connector includes a housing; the housing is provided with a cavity, and a low-voltage circuit control device is provided in the cavity, and it is characterized in that the low-voltage circuit control device is provided with a switch terminal and a connection terminal, and the connection Two output terminals are arranged on the end; each output terminal is electrically connected with a first metal pin; the switch end is located in the cavity; the first metal pin protrudes from the outer surface of the housing.

Preferably, a protective plate is provided on the outer surface of the housing, and the protective plate extends from the outer surface of the connector housing and is arranged around the first metal pin; the protective plate extends from the outer surface of the connector housing. The outer surface of the bottom of the connector housing extends longer than the length of the first metal pin protruding from the outer surface of the housing bottom.

Preferably, the protective plate is arranged around the first metal pin to form a first socket housing.

Preferably, it also includes a connector, the connector includes a second socket housing and a second metal pin, the second metal pin is arranged on the second socket housing; the second socket The connector housing is pluggably connected to the first connector housing, and the second metal pin is electrically connected to the first metal pin.

Preferably, the first metal pin and the output terminal are respectively molded and fixedly connected to form an integral piece.

Preferably, the first metal pin includes a connecting section and a mating section; the connecting section is fixedly connected to the output terminal, and the mating section extends in the same direction as the output terminal.

Preferably, the connection section is welded to the output terminal.

Preferably, the first metal pin includes a shorter connecting segment and a longer mating segment; the connecting segment and the mating segment are connected in an L shape; the connecting segment and the mating segment are connected in an L shape; The output terminals are connected, and the mating section passes through the housing and protrudes from the outer surface of the housing.

Preferably, the switch terminal on the low-voltage circuit control device includes two switch contacts and a shrapnel; the two switch contacts are respectively electrically connected to the two output terminals; the shrapnel is connected to the two output terminals The switch contacts are selectively electrically connected.

The second purpose of the utility model is to provide an easy-to-use electrical connector in order to overcome the deficiencies in the prior art.

In order to achieve the above purpose, the utility model is realized through the following technical solutions:

The low-voltage circuit control device includes a switch housing, two output terminals, and shrapnel; the switch housing has a switch end and a connection end; the two output terminals are inserted into the switch housing from the connection end, and extend Protruding from the switch end to form two switch contact points; one end of the shrapnel is electrically connected to one of the switch contact points, and the other end is elastically arranged; the other end of the shrapnel is electrically connected to the other switch contact after being pressed and generates Elastic force, the elastic force causes the shrapnel to lose electrical connection with another switch contact after the pressure disappears; each output terminal is electrically connected to a first metal pin.

Preferably, the first metal pin includes a connecting section and a mating section; the connecting section is fixedly connected to the output terminal, and the mating section extends in the same direction as the output terminal.

The third purpose of the utility model is to provide a high-voltage interlocking electrical connector assembly that is easy to use in order to overcome the deficiencies in the prior art.

In order to achieve the above purpose, the utility model is realized through the following technical solutions:

A high-voltage interlock electrical connector assembly includes the aforementioned electrical connector and a mating connector; the electrical connector also includes two mating high-voltage terminals; the mating connector includes a mating housing, two high-voltage plugs The mating housing is provided with a mating cavity; the mating housing is pluggably inserted into the cavity; the two mating high-voltage terminals are electrically connected through the fuse Connection; the matching high-voltage terminal and the fuse are arranged in the matching cavity, and the high-voltage plug-in terminal is arranged in the cavity.

Preferably, when the electrical connector is plug-connected with the mating housing, the mating connector presses the elastic piece to make contact with both switch contacts.

In the high-voltage interlocking electric connector in the utility model, the external connection of the low-voltage circuit switch is realized by the first metal needle. If the length of the first metal pin is not enough, the connector can be plugged in, and the length of the electrical connection can be extended by using the second metal pin. A protective plate is set on the housing, which can not only protect the metal needle from damage, but also set a corresponding structure to facilitate connection with the adapter. The utility model is applicable to various applicable occasions and is convenient to use.

Description of drawings

Fig. 1 is a schematic diagram of the structure disassembly of the high-voltage interlock electrical connector assembly of the present invention.

FIG. 2 is a schematic cross-sectional view of the structure of the electrical connector.

Figure 3 is a view of Figure 2 from another angle.

Fig. 4 is a structural schematic diagram of a low-voltage circuit control device.

Fig. 5 is a schematic diagram of the cooperation structure of the low-voltage circuit switch, the first metal pin and the adapter.

6 is a schematic cross-sectional view of the low-voltage circuit control device in the high-voltage interlock electrical connector assembly shown in FIG. 1 when it is switched on.

FIG. 7 is a schematic cross-sectional view when the low-voltage circuit control device in the high-voltage interlock electrical connector assembly shown in FIG. 1 is disconnected.

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the utility model is further described.

As shown in FIGS. 1 to 5 , the high voltage interlock electrical connector assembly includes a mated electrical connector 10 and a mated connector 20 . The electrical connector 10 includes a housing 15 . The housing 15 is provided with a cavity 11 . The mating connector 20 and the electrical connector 10 are pluggably inserted into the cavity 11 . One or more low-voltage circuit control devices 12 and two matching high-voltage terminals 18 are arranged in the cavity 11 . The mating high-voltage terminal 18 can adopt various structures in the prior art, which can be determined according to the actual application. One end of the mating high-voltage terminal 18 is used to connect to the high-voltage transmission line, and the other end is used to plug and connect to the mating high-voltage terminal in the mating connector 20 to jointly control the opening and closing of the high-voltage circuit.

In a preferred embodiment of the present invention, the mating connector 20 includes a mating housing 25 . The matching housing 25 is provided with a matching cavity 26 . A fuse 21 (such as a fuse) is arranged in the mating cavity 26 . Two ends of the fuse 21 are respectively connected to a matching high-voltage terminal 22 . The two matched high-voltage terminals 22 are electrically connected through a fuse 21 . The mating high-voltage terminal 22 is plugged and connected to the high-voltage plug-in terminal 18 in a pluggable and detachable manner. For example, the mating connector 20 with the fuse 21 can form a manual maintenance disconnect device (Manual Service Disconnect, MSD).

The low-voltage circuit control device 12 of the utility model is used for controlling the connection and disconnection of the low-voltage circuit. In the example shown in FIG. 4 , the low-voltage circuit control device 12 has a switch housing 121 . Two output terminals 123 are provided at the lower end (ie, the connecting end) of the switch housing 121 . The two output terminals 123 are inserted into the switch housing 121 from the lower end of the switch housing 121 , and protrude from the upper end of the switch housing 121 (ie, the switch end), forming two switch contact points 124 . An elastic piece 122 is disposed on the upper end of the switch housing 121 . One end of the shrapnel 122 is connected to the switch housing 121 and is electrically connected to one of the switch contact points 124; the other end of the shrapnel 122 is elastically arranged and can be electrically connected to the other switch contact point 124 when pressed, so that the two output The terminal 123 is electrically connected to the switch end of the switch housing 121 . The electrical connection between the elastic piece 122 and the switch contact point 124 can be realized in the form of direct contact or through other structures.

At the connecting end of the switch housing 121 , each output terminal 123 is connected to a first metal pin 13 . The first metal pin 13 and the output terminal 123 are respectively molded and fixedly connected together to form an integral piece. The first metal pin 13 includes a shorter connecting section 131 and a longer mating section 132 . The connecting section 131 and the mating section 132 are connected to each other in an L shape. The connection section 131 is fixedly connected with the output terminal 123, such as welding. The mating section 132 extends outward from the output terminal 123 . In the example shown, the mating section 132 and the output terminal 123 extend in the same direction.

The low-voltage circuit control device 12 can be installed in the electrical connector 10 of the high-voltage interlock electrical connector in various ways. In the example shown in FIG. 1 , the switch housing 121 of the low-voltage circuit control device 12 can be installed in a suitable cavity 11 in the electrical connector 10 . The mating section 132 passes through the bottom plate 14 of the housing 15 and protrudes from the outer surface 141 of the housing bottom. Referring to FIG. 4 , a guard plate 15 is disposed on the outer surface 141 of the housing 15 . The protective plate 15 extends from the outer surface 141 of the shell bottom; the length of the protective plate 15 extending from the outer surface 141 of the shell bottom is greater than the length of the first metal pin 13 protruding from the outer surface 141 of the shell bottom, so as to protect the first metal pin 13 . In a preferred embodiment of the present invention, the guard plate 15 is arranged around the first metal pin 13 for a circle. The protective plate 15 surrounding the first metal pin 13 can be configured in various shapes or structures to form a first plug-in housing 16 that facilitates plug-in connection with other mating connectors.

As shown in FIG. 4 , the low-voltage circuit control device 12 installed on the first connector 10 can be connected with a pair of matching connectors 17 . In the example shown in FIG. 4 , the mating connector 17 includes a second socket housing 171 and a second metal pin (not shown in the figure). The second metal pin is disposed on the second socket housing 171 and connected to the cable 172 . The second plug housing 171 is plugged and connected to the first plug housing 16 in a pluggable and detachable manner. When the second socket housing 171 is plugged and connected to the first socket housing 16 , the first metal pin 13 is electrically connected to the second metal pin and the cable 172 . The electrical connections between the first metal pin 13 and the second metal pin can be in various forms. Either direct contact or transfer through other structures can be used. In a preferred embodiment of the present utility model, the first metal pin 13 is connected to the second metal pin in a pluggable and detachable manner. When the second plug-in housing 171 is plug-connected with the first plug-in housing 16 , the first metal pin 13 is plug-connected with the second metal pin. Various structures in the prior art can be used to realize the pluggable connection between the first metal pin 13 and the second metal pin, for example, one of the first metal pin 13 and the second metal pin uses a rod in the form of one and the other in the form of a sleeve. In this embodiment, the first metal pin 13 is in the form of a rod, and the second metal pin is in the form of a sleeve. When the second plug-in housing 171 is connected to the first plug-in housing 16, the first metal pin 13 is pluggably inserted into the second metal pin, and the first metal pin 13 and the second metal pin Plug connection and mutual contact to realize electrical connection.

The working conditions of the high-voltage interlock electrical connector assembly, the high-voltage interlock electrical connector, and the low-voltage circuit control device of the present invention will be described below with reference to FIG. 6 and FIG. 7 .

As shown in FIG. 6 , the high voltage interlock electrical connector assembly in the present invention is in the final insertion position. In this insertion final position, the mated electrical connector 10 and the mated connector 20 are fully plugged into each other, that is, the high-voltage plug-in terminal 18 in the electrical connector 10 is mated with the mated connector 20 in the mated mating connector 20 . The high-voltage terminal 22 is electrically connected, thereby turning on the high-voltage circuit. Moreover, the elastic piece 122 in the low-voltage circuit control device 12 is pressed by the mating connector 20 to electrically connect the two switch contact points 124, thereby turning on the low-voltage circuit.

As shown in FIG. 7 , the high voltage interlock electrical connector assembly in the present invention is in a partially disconnected position. In this partially disconnected position, the mated electrical connector 10 and the mated connector 20 are partially separated from each other, so that the mated connector 20 releases the pressure on the shrapnel 122, thereby disconnecting the two switch contact points 124 and cutting off the low-voltage circuit . However, the high-voltage plug-in terminal 18 in the electrical connector 10 is still electrically connected to the matching high-voltage terminal 22 , and the high-voltage circuit is still connected. A mechanical locking mechanism may be provided on the high voltage interlock electrical connector assembly to keep the high voltage interlock electrical connector assembly in the partially disconnected position, so as to prevent the electrical connector 10 and the mating connector 20 from being easily and completely separated. The high voltage interlock electrical connector assembly may then continue to separate until the electrical connector 10 and the mating connector 20 are completely separated to the state shown in FIG. 1 .

In the high-voltage interlocking electrical connector assembly of the utility model, the external connection of the low-voltage circuit control device is realized by the first metal pin, thereby avoiding the welding operation in the wire-slinging connection and realizing fast insertion. A protective plate is provided on the bottom of the housing of the first connector, which can not only protect the metal pins from damage, but also provide a corresponding structure to facilitate connection with the adapter. The utility model is applicable to various applicable occasions and is convenient to use.

The embodiments in the utility model are only used to illustrate the utility model, and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions conceivable by those skilled in the art are all within the protection scope of the utility model.

Claims (13)

1. An electrical connector, comprising a housing; the housing is provided with a cavity, and a low-voltage circuit control device is arranged in the cavity, and it is characterized in that the low-voltage circuit control device is provided with a switch terminal and a connection terminal, so Two output terminals are arranged on the connection end; each output terminal is electrically connected with a first metal pin; the switch end is located in the cavity; the first metal pin protrudes from the outer surface of the housing. 2. The electrical connector according to claim 1, wherein a protective plate is provided on the outer surface of the housing, and the protective plate extends from the outer surface of the connector housing and surrounds the The first metal pin is provided; the length of the protective plate extending from the outer surface of the bottom of the connector housing is greater than the length of the first metal pin protruding from the outer surface of the bottom of the housing. 3 . The electrical connector according to claim 2 , wherein the protective plate is arranged around the first metal pin to form a first socket housing. 4 . 4. The electrical connector according to claim 3, further comprising a connector, the connector comprising a second socket housing and a second metal pin, the second metal pin is arranged on the On the second plug-in housing; the second plug-in housing is pluggably connected to the first plug-in housing, and the second metal pin is electrically connected to the first metal pin . 5 . The electrical connector according to claim 1 , wherein the first metal pin and the output terminal are respectively molded and fixedly connected to form an integral piece. 6 . 6. The electrical connector according to claim 5, wherein the first metal pin comprises a connection section and a mating section; the connection section is fixedly connected to the output terminal, and the mating section is connected to the output terminal The extension directions of the output terminals are the same. 7. The electrical connector according to claim 6, wherein the connection section is welded to the output terminal. 8. The electrical connector according to claim 1, wherein the first metal pin comprises a shorter connecting segment and a longer mating segment; the connecting segment and the The mating section is connected in an L shape; the connecting section is connected to the output terminal, and the mating section passes through the housing and protrudes from the outer surface of the housing. 9. The electrical connector according to claim 1, wherein the switch end on the low-voltage circuit control device includes two switch contact points and a shrapnel; the two switch contact points are connected to the two switch contacts respectively. The two output terminals are electrically connected; the shrapnel is selectively electrically connected to the two switch contacts. 10. A low-voltage circuit control device, comprising a switch housing, two output terminals, and a shrapnel; the switch housing has a switch end and a connection end; the two output terminals are inserted into the switch housing from the connection end, And extend and protrude from the switch end to form two switch contact points; one end of the shrapnel is electrically connected to one of the switch contact points, and the other end is elastically arranged; The other end of the shrapnel is electrically connected to another switch contact after being pressed and generates an elastic force. After the pressure disappears, the elastic force causes the shrapnel to lose electrical connection with the other switch contact; each output terminal is electrically connected to a A first metal pin. 11. The low-voltage circuit control device according to claim 10, wherein the first metal pin includes a connection section and a mating section; the connection section is fixedly connected to the output terminal, and the mating section It is the same as the extending direction of the output terminal. 12. A high-voltage interlock electrical connector assembly, comprising an electrical connector and a mating connector according to any one of claims 1 to 9; the electrical connector also includes two mating high-voltage terminals; the pair The mating connector includes a mating housing, two high-voltage plug-in terminals and a fuse; the mating housing is provided with a mating cavity; the mating housing is pluggably inserted into the cavity The two matching high-voltage terminals are electrically connected through a fuse; the matching high-voltage terminals and the fuse are arranged in the matching cavity, and the high-voltage plug-in terminals are arranged in the cavity. 13. The high-voltage interlock electrical connector assembly according to claim 12, wherein when the electrical connector is plugged into the mating housing, the mating connector presses the elastic piece to make it Makes contact with both switch contacts.

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