CN201392932Y - A current and signal mixed plug and socket - Google Patents

Abstract

The utility model relates to a current and signal mixed socket, which comprises a socket shell and a socket insulator arranged in the socket shell, a socket contact piece is fixedly inserted in the socket insulator, and at least one socket signal contact piece is provided in the socket shell The installation cavity also has at least two installation cavities for socket power contacts of different models; The socket electric contact is arranged in the socket power contact installation cavity, and the socket power contact installation cavity and the socket signal contact installation cavity are both provided with a socket cavity for matching with the plug at the plug end. A shielding spring is provided on the surrounding wall of the insertion cavity.

Description

A current and signal mixed plug and socket

technical field

The utility model relates to a current and signal mixed plug, and also relates to a current and signal mixed socket.

Background technique

Along with the development of the electrical field towards integration and miniaturization, its circuit connection methods will inevitably develop towards integration and miniaturization. Chinese patent CN95222890 discloses such a connector, the connector includes a housing, an insulator installation cavity is provided in the housing, an insulator is fixedly installed in the insulator installation cavity, and the insulator is fixedly inserted with different sizes. For contacts that transmit different currents and signals, each contact is in the same insulator, and there is no shielding structure between them. When the current contact transmits a large current, a strong interference signal will be generated due to the large current. The interference signal will adversely affect the signal transmitted by the signal contact piece, and in severe cases, it will affect the normal operation of the entire signal line.

Utility model content

The purpose of this utility model is to provide a current and signal mixed plug, and at the same time provide a current and signal mixed socket, which is used to solve the problem that the existing current and signal mixed connector does not have a shielding function, especially if there is a current contact When the component transmits a large current, it is easy to cause the problem that the signal line cannot work normally.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a current and signal mixed socket, including a socket housing and a socket insulator arranged in the socket housing, a socket contact is fixedly inserted in the socket insulator, and the socket There is at least one socket signal contact mounting cavity inside the housing, and there are at least two socket power contact mounting cavities of different models; the socket contacts include socket signal contacts that are correspondingly arranged in the socket signal contact mounting cavity , At least two types of socket electrical contacts of different types respectively corresponding to the socket electrical contacts arranged in the socket power contact mounting cavity, the socket power contact mounting cavity and the socket signal contact mounting cavity are located at the plug-in end. An insertion cavity matched with the plug, a shielding spring is arranged on the peripheral wall of the insertion cavity.

The socket electrical contact includes a socket power contact (up to 200A current) and a socket current contact (up to 20A current); the head of the socket power contact, socket current contact and socket signal contact Neither is higher than the end face of the plug-in end of the socket housing.

The tail of the socket housing is provided with a socket protective cover.

Both sides of the socket housing are provided with guide pins or guide sleeves extending along the socket insertion direction.

A current and signal mixed plug, comprising a plug housing and a plug insulator arranged in the plug housing, a plug contact is fixedly inserted in the plug insulator, the plug housing has at least one plug signal contact mounting cavity, and There are at least two plug power contact installation cavities with different models; the plug contacts include plug signal contacts correspondingly arranged in the plug signal contact installation cavities, and at least two different types of plug contacts are respectively arranged correspondingly in the plug signal contact installation cavities. Plug electrical contacts in plug power contact mounting cavities.

The plug electrical contacts include plug power contacts (up to 200A current) and plug current contacts (up to 20A current); the head of the plug power contacts, plug current contacts and plug signal contacts None of them are higher than the end face of the plug-in end of the plug housing.

The tail of the plug housing is provided with a plug shield.

Both sides of the plug housing are provided with guide pins or guide sleeves extending along the plug insertion direction.

When the current and signal mixed plug and socket of the above solution are used, the plug and the socket are inserted into each other to realize the connection of the circuit. The plug and the socket respectively have at least three contact mounting cavities, and the contact mounting cavities are not connected to each other. , There is a shielding spring on the wall of the plugging cavity of the socket. After plugging in, the shielding spring connects the two metal shells to each other and is at the same level, so that the contacts in the mounting cavity of each contact are shielded. , Even when the power contact is fed with a large current (up to 200A), it will not have an adverse effect on signal transmission.

Description of drawings

Fig. 1 is a structural schematic diagram of the electric current and signal mixed plug of the present invention;

Fig. 2 is a structural schematic diagram of the electric current and signal mixed socket of the present invention.

Detailed ways

The current and signal mixed plug of the utility model shown in Fig. 1 includes a plug housing 1 of metal material, and a plug power contact mounting cavity, a plug current contact mounting cavity and a plug signal mounting cavity are arranged on the plug housing 1. There is a step in the contact installation chamber of the plug power contact, through which an insulator 7 is installed in the axial direction, and an insulating pressure plate 8 is installed on the rear end of the insulator 7, and the insulating pressure plate 8 is stopped by a retaining spring 9 Installed in the plug power contact installation cavity, the plug power contact 2 is fixedly pierced between the insulator 7 and the insulating pressure plate 8; the plug current contact installation cavity and the plug signal contact installation cavity are respectively fixed and installed in the same way as above There are plug current contacts 4 and plug signal contacts 6; a protective cover 3 is fixedly installed on the tail of the plug housing 1, and a guide pin 5 extending along the insertion direction is respectively installed on both sides of the plug housing 1, Of course it can also be a guide sleeve.

The current and signal mixed socket of the present utility model shown in Fig. 2, comprises the socket shell 10 of metal material, and socket shell 10 is provided with a socket power contact mounting cavity, a socket current contact mounting cavity and a socket signal There is a step in the socket power contact installation cavity, and an insulator 14 is installed axially through the step, and the front end face of the insulator 14 and the front end face of the socket power contact installation cavity are provided with a The socket cavity 11 where the plugs are inserted into each other, the surrounding wall of the socket cavity 11 is provided with a shielding spring 13, the rear end of the insulator 14 is installed with an insulating pressure plate 15, and the insulating pressure plate 15 is installed in the installation cavity of the power contact of the socket through the retaining spring 16 , between the insulator 15 and the insulating pressure plate 16, a socket power contact 17 is fixedly worn; the socket current contact 18 and the socket signal contact are respectively fixedly installed in the socket current contact installation cavity and the socket signal contact installation cavity in the same manner as above. Part 20; a protective cover 19 is fixedly installed on the tail of the socket housing 10, and a guide sleeve 12 extending along the insertion direction is respectively installed on both sides of the socket housing 10, and of course it can also be a guide pin.

Claims (8)

1. A current and signal mixed socket, comprising a socket housing and a socket insulator arranged in the socket housing, a socket contact is fixedly inserted in the socket insulator, and it is characterized in that: there is at least one socket signal in the socket housing. The contact installation cavity also has at least two different types of socket power contact installation cavities; the socket contacts include socket signal contacts correspondingly arranged in the socket signal contact installation cavity, at least two different models Respectively corresponding to the socket electrical contacts arranged in the socket power contact installation cavity, the socket power contact installation cavity and the socket signal contact installation cavity are located at the plug-in end and are provided with a plug-in cavity for matching with the plug , A shielding spring is provided on the peripheral wall of the insertion cavity. 2. The current and signal mixed socket according to claim 1, characterized in that: said socket electrical contacts include socket power contacts and socket current contacts; said socket power contacts, socket current contacts and socket The heads of the signal contacts are not higher than the end face of the plug-in end of the socket housing. 3. The current and signal mixed socket according to claim 1 or 2, characterized in that: the tail of the socket housing is provided with a socket protective cover. 4. The electric current and signal mixed socket according to claim 3, characterized in that: the two sides of the socket housing are provided with guide pins or guide sleeves extending along the socket insertion direction. 5. A current and signal mixed plug, including a plug housing and a plug insulator arranged in the plug housing, a plug contact is fixedly inserted in the plug insulator, and it is characterized in that: the plug housing has at least one plug signal The contact installation cavity also has at least two different types of plug power contact installation cavities; the plug contacts include plug signal contacts correspondingly arranged in the plug signal contact installation cavity, and at least two different types of plug contacts. Corresponding to the plug electrical contacts arranged in the plug power contact mounting cavity respectively. 6. The current and signal mixed plug according to claim 5, characterized in that: said plug electrical contacts include plug power contacts and plug current contacts; said plug power contacts, plug current contacts and plug The heads of the signal contacts are not higher than the end face of the plug-in end of the plug housing. 7. The current and signal mixed plug according to claim 5 or 6, characterized in that: the tail of the plug housing is provided with a plug protective cover. 8 . The current and signal mixed plug according to claim 7 , wherein guide pins or guide sleeves extending along the plug insertion direction are provided on both sides of the plug housing. 9 .

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