RU2479899C2 - Method for making contact electric connection based on pressing and contact electric connection for its realisation - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: external cartridge is manufactured with a puncheon, arranged along its central axis, and an internal cartridge is made with sectors around an axial hole. The internal cartridge is inserted into the axial hole of the external cartridge, and the external cartridge puncheon is inserted into the axial hole of the internal cartridge, then by means of mutual displacement of cartridges along their axes the puncheon of the external cartridge is pushed into the hole of the internal cartridge till completion of the pressing process. To implement the method, a structure of the contact connection is proposed, which comprises the external cartridge and the internal cartridge. The external cartridge is equipped with a puncheon and a partition of the axial hole, where the puncheon is fixed. The internal cartridge comprises several sectors around the axial hole and is placed in the axial hole of the external cartridge, the puncheon of the external cartridge is located between sectors of the internal cartridge in its axial hole.

EFFECT: reduced dimensions of a contact connection, stability of a contact connection shape, stability of characteristics of an electric contact transition, stability of temperature characteristics.

2 cl, 1 dwg

Description

Field and level of technology to which the invention relates.

The present invention relates to the field of electrical engineering, including marine electrical installations, electrical communications systems, installations and devices using electrical contact connectors, glands, cable entries. Specifically, the proposal relates to contact electrical connections. The main types of electrical contact connections are presented in GOST 10434, according to which contact connections are divided into classes:

- collapsible contact joints;

- non-separable contact connections.

Both of these classes of contact connections are analogues of the present proposed method of contact electrical connection and its implementation in the form of a specific design.

Contact joints are a widely used technique. Complicated tasks and, accordingly, methods for making contact connections. It is required to guarantee the reliability of the electrical connection, the continuity of the conductor of electric current in all terrestrial conditions - on land, at sea depths, in space. It is necessary to provide low resistance of the connection and low energy loss in the connection, low temperature of the contact compound and its durability. The list of stringent connection requirements can be continued. Therefore, the design of contact connectors of electrical conductors in electrical equipment, the materials used, the technology for their preparation and application are rapidly developing, which indicates a modern high level of development of the technique for implementing electrical contact connections.

The well-known connectors of the company "Surjo" (France), which is engaged in the supply of electrical connectors in a wide range in the world and, in particular in Russia. These connectors contain analogues of the proposed contact electrical connectors.

The closest are non-separable contact joints according to GOST 10434, made by pressing. The disadvantages of the known solutions in this case are a consequence of their mass character and the lack of the need to solve non-standard tasks that can be solved when creating unique and even small-scale contact connectors. In particular, these are connectors for deep-sea vehicles, which combine the functions of sealed bushings and contact connectors with stringent requirements for the ratio of transmitted power and size.

For similar designs proposed

- a method of making contact electrical connection based on pressing;

- contact electrical connection according to the proposed method.

1. The method of making a contact electrical connection, based on the pressing of the contact parts, is characterized in that an external sleeve with a punch located along its central axis and an internal sleeve with sectors around an axial hole are made, then an internal sleeve is inserted into the axial hole of the external sleeve, and the punch of the outer sleeve is introduced into the axial hole of the inner sleeve, then by mutual movement of the sleeves along their axes, the punch of the outer sleeve is advanced into the hole of the inner sleeve until the process is completed pressing.

2. Contact electrical connection according to the method of paragraph 1, comprising an outer sleeve and an inner sleeve, characterized in that the outer sleeve is provided with a punch placed along its central axis and a bore of the axial hole in which the punch is fixed, the inner sleeve contains several sectors around the axial hole and placed in the axial hole of the outer sleeve, the punch of the outer sleeve is located between the sectors of the inner sleeve in its axial hole so that the inner surface of the outer sleeve and the outer surface sec tori of the inner sleeve are connected without a gap and pressed into the punch.

Thus formulated the following main distinguishing features of the method of electrical contact connection:

Sign

"The contact connection method, based on the pressing of contact parts, characterized in that an external sleeve with a punch located along its central axis and an internal sleeve with sectors around the axial hole are made" allows the standard and proposed procedures for the contact connection method to be agreed.

The use of sleeves ensures the preservation of the pressing processes of contact joints and at the same time allows you to take into account the features of new processes, use new processes and new details of the contact joint, allows you to solve the problem of minimizing the volumes of the contact joint in a given volume, ensures the stability of the shape of the contact joint, the connection characteristics remain unchanged after the end of the pressing process.

Sign

"insert the inner sleeve into the axial hole of the outer sleeve, and insert the punch of the outer sleeve into the axial hole of the inner sleeve, then by moving the liners along their axes, advance the punch of the outer sleeve into the axial hole of the inner sleeve until the pressing process is completed"

ensures the implementation of new processes in a new sequence when performing contact joints, eliminates the change in the shape of the contact joints after pressing, the ability to achieve temperature stability and transient electrical resistance of the contact transition.

Sign

"the outer sleeve is equipped with a punch along its central axis and the bore of the axial hole in which the punch is fixed" indicates the differences in the details of the contact connection, the supply of the designs of traditional sleeve details with new structural elements, to perform new functions of the pressing process.

Sign

"the inner sleeve contains several sectors around the axial hole and is located in the axial hole of the outer sleeve, the punch of the outer sleeve is located between the sectors of the inner sleeve in its axial hole so that the inner surface of the outer sleeve and the outer surface of the sectors of the inner sleeve are connected without clearance and pressed into the punch"

formulates the features of the proposed design, in which sleeves are combined as elements of a contact electrical connection and a punch that provides crimping of contact parts.

Therefore, the proposed contact electrical connection meets the criterion of "novelty", as it has distinctive features from the prototype, new structural elements, new connections between the elements.

The above properties do not coincide with the properties that are the hallmarks of the known technical solutions, and are not the sum of their properties, which allows us to consider the claimed solution to meet the criterion of "significant differences".

Description of the design of the contact connection.

The figure shows a drawing of the contact joint, which contains the outer sleeve 1 and the inner sleeve 2. The outer sleeve 1 is provided with a punch 3 fixed in the baffle of the axial hole of the outer sleeve 1. The inner sleeve 2 contains several sectors around the axial hole and is placed in the axial hole of the outer sleeve. The punch 3 of the outer sleeve is located between the sectors of the inner sleeve in its axial hole so that the inner surface of the outer sleeve and the outer surface of the sectors of the inner sleeve are connected without a gap and pressed into the punch.

The end of the pressing process guarantees the invariability of the shape of the contact joint and the stability of the characteristics of the electrical contact transition, the stability of the temperature characteristics during operation.

Claims (2)

1. A method of making a contact electrical connection, based on pressing, characterized in that an external sleeve with a punch in the center of the sleeve and an internal sleeve with sectors around its axial hole are used, an internal sleeve is inserted into the axial hole of the external sleeve, and introduced into the axial hole of the internal sleeve the punch of the outer sleeve, then by mutual movement of the sleeves along their axes, the punch of the outer sleeve is advanced into the hole of the inner sleeve until the pressing process is completed. 2. Contact electrical connection according to the method of claim 1, comprising an outer sleeve and an inner sleeve, characterized in that the outer sleeve is provided with a punch in the center of the sleeve and a bore of the axial hole in which the punch is fixed, the inner sleeve contains several sectors around the axial hole and is located in the axial hole of the outer sleeve, the punch of the outer sleeve is located between the sectors of the inner sleeve in its axial hole so that the inner surface of the outer sleeve and the outer surface of the sectors of the inner sleeve connected without a gap and pressed in by a punch.