TW523967B - Electrical connector friction regulation - Google Patents

Abstract

The invention provides a removable electrical connector with a desired friction to provide a good electrical contact. The invention uses an outer sleeve that provides a removable connection to an electrical receptacle with an outer sleeve, by surrounding the outer sleeve of the receptacle with a outer contact sleeve and providing frictional contact between the outer sleeve and the outer contact sleeve to provide both electrical contact and a mechanical connection. The electrical connector provides an outer contact sleeve that is tapered so that the diameter of the receiving end of the outer contact sleeve is less than the diameter of the outer sleeve of the receptacle. Slits are made in the outer contact sleeve to provide an elastic force, which creates the frictional force. A groove is placed around the outside of the outer contact sleeve to provide more control over the elastic force.

Description

523967 V. Description of the invention (1) Related applications, this application is related to the provisional patent application under review s / N 6 0/7 0, 3 1 8 and its name is " Electrical Connection with Adjusting Friction Force "The device" was filed by the applicant of this case on January 2, 1998.

TECHNICAL FIELD The present invention relates to an electrical connector. In detail, the present invention relates to a detachable miniature electrical connector, and is particularly suitable for low-noise i · signal transmission of electronic signals. In terms of method and design, it can improve the performance of the two connections The frictional force between the connector elements further improves the connection between the two connectors, and at the same time, it can prevent one connector from being damaged when it is detached from the other connector. : I Background of the Invention! Detachable electrical connectors for electronic equipment carrying signals can be manufactured in a variety of ways. A commonly known connector system is the so-called " RCA-type " plug and connector. RCA connectors and plugs (or i | sockets) are usually found in equipment for audio and video recording, storage, transcription and playback! I. The original design of the conventional RCA connector system consists of a generally cylindrical connector or slot, which is installed on equipment that provides connectivity. This! The cylindrical connector is made of The equipment protrudes, and it includes an external connection i surface, and an internal connection surface that is electrically insulated from the external connection surface by a dielectric. · A plug can be accommodated to this connector The plug system includes a conductive central terminal and a plurality of radially matched contact elements. This contact element

Page 5 523967 V. Description of the invention (2) The parts can stretch elastically and radially. A second dielectric electrically isolates the central terminal from the contact element. , t Different plug or connector components are initially formed by some metal substrates, including steel and copper. Some or all of the connector or plug components are electroplated, usually tin or similar materials to increase their electrical conductivity. It is quite common to form contact elements with hafnium plated steel. Unfortunately, this structure often suffers from poor connectivity. The reasons are: the relatively low quality of the steel structure and the relatively poor conductivity cannot meet the contact components; because of the tin plating and different forms of salts and oxides (the most common oxides of hafnium oxide and tin dioxide) ); And the plug / connector dual plug / plug cycle is repeated, and the tin plating is peeled off from at least one connector and the steel contact element. This reduction in connectivity can have an adverse effect on generating a relatively low signal / noise ratio between the connector and the plug. To overcome this shortcoming, at present, a manufacturer has machined at least the plug element from a relatively large solid copper material and then gold-plated it. This improved plug is called n TURBINE ^ Connector " on the market, and it is produced by Monster Cable Product Company, 2 74 Wadis South Road, San Francisco, California 94080, USA. These TURBI NEE $ connectors provide considerable improvements in the reliability of audio and video component connections. A large number of individual contact components can be combined with the outer conductive layer of the connector in a manner that increases the frictional engagement force, but this creates a second problem. The friction generated by a large number of contact elements will increase the friction between the plug and the socket. Therefore, removing the plug from the socket usually causes damage to at least one of the plug and the socket.

523967 V. Description of the invention (3) In order to overcome this problem, a release groove is cut in the contact element of the plug to adjust the flexibility of the contact element so that the connector can be better. Make tight contact without damaging the plug and / or socket when disconnected. The problem with the internal release groove is that it cannot provide the connector element with correct and reliable deflection. Furthermore, for the relatively small dimensions of the components of different connector systems, variations in machining tolerances can have a significant impact on the interaction between the structures of the different components. Therefore, it is very difficult to form an internal recessed groove system on the contact element, although the recessed groove on one side will increase the frictional fit between the plug and the socket, and the other side can also prevent the plug from Remove the damage from the socket. i Therefore, the RCA type electrical plug needs to be improved here. It can use a solid metal and a considerable number of connector components to increase the contact j !; and the tightness, thereby improving the connection between the plug and the connector. Electrical connection, i can also prevent the connector from being damaged when the plug is inserted or pulled out. j Summary of the Invention I The present invention proposes an electrical connection system, which can use a solid metal, a considerable number of contact elements, to provide closer contact, and thereby improve the contact between the plug and the connector Electrical connectivity, while avoiding damage to the plug and socket when the plug is inserted or removed. This plug provides at least one first and second conductive contact. The first and I-pluggable contacts form a conductive terminal (only for illustration and not limitation)

I I system), used to conduct a first electrical signal. This contact can be inserted into the first contact sleeve of an electronic socket, and it can be used according to the needs of the application.

Page 7 523967 V. Description of the invention (4) It is bifurcated or continuous. Second, the external contact is composed of a plurality of conductive flexible gas contacts surrounding the first contact (but forming an electrical insulation with the first contact) " t element, which forms a segmented type Truncated cone. The flexible element of the second contact can be flexed radially from the center line of the plug, and can be flexed inwardly or outwardly. This flexible contact element is made of a considerable amount of conductive material and can be plated to increase the signal / noise ratio of the connector system. This plating may include any electro-mineral material, which may be used to increase conductivity, including, but not limited to, precious metals such as gold. In order to push several external contact elements into close external contact and electrical contact with the outside of the socket of the connector system, it has an inner diameter slightly smaller than the outer diameter of the socket. The external contact forms a segmented portion of a plurality of contact elements, which can extend the contact element beyond the outer surface of the slot, and the elastic and flexible characteristics of the contact element ensure contact with the segmented portion. In order to adjust the friction between the contact element and the outer surface of the socket, an external groove is formed generally at or near the base of the contact element, where it is composed of the body of the external contact. Although the appropriate degree of friction varies from embodiment to embodiment, the groove system can be carefully designed to provide proper friction and conductivity for individual embodiments. The depth and width of the grooves can therefore be designed differently with each embodiment. Other features of the present invention will be further understood from the "Detailed Description of the Invention" section below. Simple illustration of the schema

523967 V. Description of the invention (5) In order to fully understand the present invention, reference will be made to the accompanying drawings in the "detailed description and explanation of the present invention" below. In these drawings: <-ί Figure 1 shows a perspective rear view of an electrical plug constructed in accordance with the principles of the present invention. ‘FIG. 2 is a side view of an electrical plug of a bridge constructed in accordance with the principles of the present invention. Figure 3 is a rear view of an electrical plug constructed in accordance with the principles of the present invention. Figure 4 shows a front view of an electrical plug constructed in accordance with the principles of the present invention. In the several drawings, the same reference numerals are used to indicate the same or equivalent elements of the present invention. Detailed description of the present invention Please refer to FIG. 1, which shows a three-dimensional rear view of an electric plug 1 constructed in accordance with the principles of the present invention. This same plug is shown in its side view in FIG. Please refer to the drawing, which shows the detailed structure of the present invention. The plug 1 includes a first pluggable contact element Υ, a second contact 10, and an electrical connection portion that provides connectivity to the first and second contacts. The whole is represented by X. In one of the first embodiments, the principle of the present invention exhibits an improvement over the conventional RC A type electrical connector. After reading the principles taught here, those who have a general understanding of this technology will understand that the present invention can be applied to pluggable contact elements Y and electrical connection portions X having any shape, or to a combination thereof . Please continue to refer to FIG. 2. The external contact 10 includes a plurality of contact components.

523967 V. Description of the invention (6) 1 2. The contact element 12 has a collar 17 and a peripheral groove 16, and is divided into individual contact elements by a slot 12 '. The horizontal and vertical width of the peripheral grooves 16 has its specific application and depends on several factors, including (but not limited to): the appropriate friction between the connector and the plug The materials used to make the contact elements; the type and extent of the heat treatment of the contact elements (if necessary); the type, width, and thickness of any plating applied to the contact elements; and the natural characteristics of the slot, including its dimensions And surface plating, wherein the slot is used to receive a plug that can implement the external contacts taught by the principles of the present invention. Continuing to refer to FIG. 2 and FIG. 2A, there is shown an embodiment of the invention for realizing an RC A type plug. In this preferred embodiment, the formed plug 1 can be inserted into the conventional slot 20 in a reverse direction, as shown generally by the arrow on the figure. Please refer to FIG. 2A again. The slot 20 shown in the figure includes an external contact sleeve 22 which is electrically insulated from an internal contact sleeve 26 by a dielectric 24. The inner contact sleeve 2 6 is formed with an opening 28. To implement the present invention, the first pluggable contact element Y has the shape of an elongated terminal 5. The terminal 5 in this preferred embodiment is bifurcated to form an elastically compressible terminal. This elastic compression system can increase the contact between the terminal and the internal contact sleeve 26. Terminal 5 can be reversely received in the opening 28 of the internal contact sleeve 26, and external contact sleeve 2 2 can be reversely received in the opening 1 of the external contact 1 10 of the plug 1. in. Inserting the plug 1 into the slot 20 can provide electricality between the external contact 1 of the plug 1 (which is implemented by the contact element 12) and the outer sleeve 22 of the slot 20. connection. Further inserting the plug 1 can be in the plug 1

Page 10 523967 V. Description of the invention (Ό Terminal 5 provides a discontinuous electrical connection between the inner sleeve 2 6 of the slot 2 0. / t Please refer to Figure 2 and Figure 4, external contact 1 The internal diameter of 0 (or the opening 13) is designed to be slightly smaller than the outer diameter of the external contact sleeve 22 of the slot 20. The external contact 10 is divided into 10 by the slot 1 2 '. Plural 'External Contact Components'

I 1 2 can make the contact element 12 along the outside of the slot 20 to contact the sleeve 2 2 with elasticity and reverse expansion. After the plug 1 is inserted into the slot 20, the elastic extensibility of the plurality of external contact elements 12 can ensure sufficient friction between the external | contact element 12 and the external contact sleeve 22, so that i Increase the degree of electrical connectivity. The problem of maintaining and adjusting the elastic extension of several contact elements 12 (this is a problem that has not been solved so far by conventional techniques) can now be formed in the base of the slot 1 2 ′ in this preferred embodiment. Or the novel groove 16 near the base is solved. The groove 16 series can adjust and adjust the elastic friction of the contact element 12 quite reliably, thereby ensuring a stable contact between the contact element 12 and the external contact sleeve 22, and at the same time, it can ensure When the user inserts the head out of the slot 20, the characteristics of any structure will not be damaged. I In order to increase the conductivity between the plug 1 and the socket 20, any of its electrical | contact components can be electroplated, coated or covered with a coating to enhance conductivity, which can include (but is not limited to This) gold plating. Please refer to FIG. 2 and FIG. 3. The electrical connection part marked with X also has considerable application characteristics, and may include any method for connecting plug 1 to another electronic component, for example, The other electronic component can be a length of wire. In the first preferred embodiment shown, the electrical connection

Page 11 523967 V. Description of the invention (8) Section X includes a first receiving section 18, which is generally electrically connected to the terminal 5. In this embodiment, a first electrical conductor, for example, a writeable * electric wire end (not shown) can be housed in one of the receiving portions 18 and one recess portion 19 | There are any methods known to those skilled in the art to fix it in the recess 19, and these methods include (but are not limited to); welding, bending and interference fit. A second accommodating part 15 is used for accommodating a second electric conductor or electric wire therein, and it is electrically connected with the external contact 10. The dielectric 30 isolates the first storage portion 18 and the second storage portion 15. As mentioned above, the electrical connection section X can be implemented in any manner known to those with ordinary knowledge of the art. Threads 14 may also be provided on the plug 1 for attaching the plug 1 to an I ·; strain relief member, housing, insulating sleeve, or the like. In the preferred embodiment, the depth D of the peripheral groove 16 is greater than 10% of the thickness T of the external contact element. In addition, the width i W of the groove 16 is larger than the depth D. The present invention has been described and explained for specific preferred embodiments. However, anyone with a general understanding of this skill should be able to easily understand

I 丨 white, different changes and modifications in shape and detailed structure can be implemented without departing from the scope of the patent application attached to the present invention. In detail, the present invention can also try using different wire connection methods and the same can be inserted into the! Contact geometry. In accordance with the principles of the present invention, it can also try to use: different materials; multiple contacts; the geometry and configuration of the grooves; and electrically conductive coatings or plating layers. The invention disclosed herein can also be implemented without the need for any components that are not disclosed in detail in this description.

Page 12 523967 I. Description of the Invention (9) I Application.

Page 13

Claims (1)

523967 I. Application for patent scope 1. An electrical connector detachably connected to a slot, wherein the slot includes a contact having a diameter, and the electrical connector includes: < t a contact sleeve A barrel having a first end portion and a second end portion opposite to the first end portion, and wherein the contact sleeve > the barrel system includes an inner hole having a diameter, wherein the inner hole is close to the second end portion The diameter is smaller than the diameter of the contact point I of the slot, wherein the contact sleeve includes: a plurality of segmented portions, which constitute the second end portion of the contact sleeve; a plurality of slots, which are formed by the second end The portion extends toward the first end portion to separate the segmented portion; and i 1 ί ί a groove located on the outer side of the external contact sleeve, and wherein the groove j 1 ί is connected to the external contact sleeve The second end is far apart and extends to each slot of the plurality of i ί ί slots. : 2. The electrical connector according to item 1 of the scope of patent application, further comprising a conductor receiving portion electrically connected to the first end portion of the contact sleeve. I 3. The electrical connector according to item 2 of the scope of patent application, wherein the contact sleeve: ί _ is a ring shape surrounding the inner hole, and wherein the groove is surrounding this ring shape;! Outer circumference While extending. 4. The electrical connector according to item 3 of the scope of patent application, which further comprises; a terminal in the inner hole. ! 5. The electrical connector according to item 4 of the scope of patent application, wherein the terminal is I! Forked. I I 6. The electrical connector according to item 5 of the scope of patent application, further comprising | an insulating layer for separating the terminal from the contact sleeve. ! 7. The electrical connector according to item 6 of the patent application, wherein the contact sleeve Page 14 523967 6. The scope of patent application is tapered, and the opening diameter of the contact sleeve at the first end is larger than the opening diameter of the contact sleeve at the second end. < t 8. The electrical connector according to item 7 of the scope of patent application, further comprising a 4-terminal electrical conductor receiving portion, which is in electrical and gas contact with the mule. 9. The electrical connection iT according to item 8 of the scope of the patent application, wherein the contact sleeve has a thickness, and wherein the groove has a depth greater than 10% of the thickness of the contact sleeve. 10. The electrical connector according to item 9 of the scope of patent application, wherein the groove system I has a width that is greater than the depth of the groove system. j Π. The electrical connector according to item 2 of the scope of patent application, further comprising I | one terminal in the inner hole. 12. The electrical connector according to item 11 of the scope of patent application, wherein the terminal is bifurcated. I! 13. The electrical connector according to item 12 of the scope of patent application, which further includes an insulating layer for separating the terminal from the contact sleeve. ： 14. The electrical connector according to item 13 of the scope of patent application, which further includes a terminal electric conductor accommodating portion which is in electrical contact with the terminal 3 丨 15. The electrical connector according to item 14 of the scope of patent application The contact sleeve: the cylinder has a thickness, and the depth of the groove is greater than 10% of the thickness of the contact sleeve. 16. The electrical connector according to item 15 of the scope of patent application, wherein the groove has a width that is greater than the depth of the groove.丨 17. The electrical connector according to item 2 of the scope of patent application, wherein the contact sleeve has a thickness, and wherein the groove has a depth greater than the contact. Page 15 523967 VI. Scope of patent application 10% of the thickness of the sleeve. »1 8. The electrical connector according to item 17 of the scope of patent application, wherein the latch groove t has a width that is greater than the depth of the groove. 1 9. A method of providing an electrical connector detachably connected to a slot, wherein the slot includes a connector having a diameter, the method includes the following steps: providing a contact sleeve, It has a first end portion and a second end portion opposite to the first end portion, and wherein the contact sleeve includes an inner hole having a diameter, wherein the inner hole is close to the diameter of the second end portion, which is smaller than The diameter of the contact point of the slot; an indentation groove surrounding the outside of the contact sleeve is arranged; and a slot in which a plurality of sleeve second ends extend to the indentation groove is formed on the contact sleeve. 20. The method according to item 19 of the scope of patent application, further comprising the following steps: connecting a first electrical conductor to the first end of the contact sleeve; disposing a conductive terminal in the opening of the contact sleeve Connecting a second conductive body to the conductive terminal; and disposing an insulating layer between the contact sleeve and the conductive terminal. O: \ 56 \ 56666.PTD Page 16