CN212648693U - Bearing type electric rotary connector - Google Patents

Abstract

The utility model discloses a bearing type electric rotary connector, which comprises a rotary shell and a fixed guide rail, wherein the rotary shell is formed by connecting an upper shell and a lower shell, an upper conductive ball channel in a circular ring shape is formed between the fixed guide rail and the upper shell, a first conductive ball, a first upper conductive sheet electrically connected with a live wire of a terminal electric appliance and a first lower conductive sheet electrically connected with a power live wire are arranged in the upper conductive ball channel, and the first conductive ball is arranged between the first upper conductive sheet and the first lower conductive sheet and is contacted with the first upper conductive sheet and the first lower conductive sheet; a lower conductive ball channel which is in a circular ring shape is formed between the fixed guide rail and the lower shell, a second conductive ball, a second upper conductive sheet which is electrically connected with a power supply zero line and a second lower conductive sheet which is electrically connected with a zero line of the terminal electric appliance are arranged in the lower conductive ball channel, and the second conductive ball is arranged between the second upper conductive sheet and the second lower conductive sheet and is contacted with the second upper conductive sheet and the second lower conductive sheet. Adopt the utility model discloses, the structure is reliable stable, long service life, and can guarantee low level signal's transmission quality.

Description

Bearing type electric rotary connector

Technical Field

The utility model relates to an electric rotary connector especially relates to a bearing formula electric rotary connector.

Background

With the rapid development of power and communication equipment, electrical connectors are more and more widely used. Among them, the electrical rotary connector is an electrical connection component widely used between two components that relatively rotate to realize conductive connection between the two components. Common electric rotary connector includes relative pivoted rotation axis and support frame, has arranged a plurality of contact rings along the axial on the rotation axis, is provided with on the support frame with the contact wire pair that contact ring number is unanimous, every contact wire pair all including arrange with two contact wires of rotation axis both sides. The electrical rotary connector further includes a first connector connected to each contact wire and a second connector connected to each contact ring. When the connector is used, the first connector and the second connector are respectively connected with the two parts which rotate relatively, and the transmission of electric signals between the first connector and the second connector is realized through the sliding contact of the contact wire and the contact ring. The problems of the existing electric connector are that: the contact wire and the contact ring are made of metal, the rotating service life of the contact wire and the contact ring usually reaches several million revolutions, long-time rotation can cause the change of relative pressure between the contact wire and the contact ring and the abrasion of the metal, and finally, the low-level contact resistance of the electric rotary connector can be increased, so that the transmission quality of signals is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reliable and stable structure, long service life, application scope is wide, and can guarantee the bearing formula electrical rotary connector of low level signal's transmission quality.

In order to achieve the above object, the present invention provides a bearing type electrical rotary connector, which includes a rotary housing made of an insulating material and a fixed guide rail, wherein the rotary housing is formed by connecting an upper shell and a lower shell, the fixed guide rail is disposed between the upper shell and the lower shell and rotatably connected with the rotary housing, and a shaft sleeve for connecting a fixed shaft is disposed at the center of the fixed guide rail; an annular upper conductive ball channel is formed between the fixed guide rail and the upper shell, a plurality of first conductive balls, a first upper conductive sheet electrically connected with a live wire of a terminal electric appliance and a first lower conductive sheet electrically connected with a power live wire are arranged in the upper conductive ball channel, the first upper conductive sheet is laid on the upper shell along the upper conductive ball channel, the first lower conductive sheet is laid on the fixed guide rail along the upper conductive ball channel, the first conductive balls are arranged between the first upper conductive sheet and the first lower conductive sheet, and the upper side and the lower side of each first conductive ball are respectively contacted with the first upper conductive sheet and the first lower conductive sheet; the fixed guide rail with be formed with the annular lower conductive ball passageway of circle between the inferior valve, be equipped with a plurality of second conductive balls down in the conductive ball passageway, with the second upper conducting strip of power zero line electricity connection and with the second lower conducting strip of terminal electrical apparatus zero line electricity connection, the second upper conducting strip along conductive ball passageway is laid down on the fixed guide rail, the second lower conducting strip along conductive ball passageway is laid down on the inferior valve, the conductive ball setting of second is in between conductive strip and the second lower conducting strip on the second, just the upper and lower both sides of the conductive ball of second respectively with conductive strip and second lower conducting strip contact on the second.

As the utility model discloses preferred scheme, fixed guide with be formed with between the epitheca and be the annular last support ball passageway of circle, upward be equipped with a plurality of first support balls in the support ball passageway.

As the utility model discloses preferred scheme, fixed guide with be formed with between the inferior valve and be the annular lower support ball passageway of circle, be equipped with a plurality of second support balls in the lower support ball passageway.

Implement the utility model provides a pair of bearing formula electricity swivelling joint ware compares with prior art, and its beneficial effect lies in:

when the rotating shell rotates relative to the fixed guide rail, the live wire end of the power supply conducts current to the first lower conducting strip on the fixed guide rail through a wire, and then the first lower conducting strip is conducted with the first upper conducting strip on the upper shell through the first conducting ball, and the first upper conducting strip guides the current to the live wire end of the terminal electric appliance through the wire; the zero line end of terminal electrical apparatus passes through the wire and switches on with the second on the inferior valve lower conducting strip, conducting strip switches on with the second on the fixed guide rail through the electrically conductive ball of second, conducting strip passes through the wire and links to each other with the zero line end of power on the second, form conductive loop, thereby realize the electricity between two parts of relative rotation and be connected, and electrically conductive ball, go up the conducting strip and be rolling contact between the conducting strip down, wearing and tearing are little, guarantee low level signal's transmission quality, and still have reliable and stable structure, long service life, wide advantage of application scope.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

Fig. 1 is a schematic structural diagram of a bearing-type electrical rotary connector provided in the present invention;

FIG. 2 is a schematic structural view of the upper case;

fig. 3 is a structural schematic view of the lower case;

fig. 4 is a schematic structural view of the stationary guide rail.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the machine or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

As shown in fig. 1 to 4, a bearing type electrical rotary connector according to a preferred embodiment of the present invention includes a rotary housing 1 made of an insulating material and a fixed guide rail 2, wherein the rotary housing 1 is formed by connecting an upper shell 11 and a lower shell 12, the fixed guide rail 2 is disposed between the upper shell 11 and the lower shell 12 and rotatably connected to the rotary housing 1, and a shaft sleeve 21 for connecting a fixed shaft is disposed at the center of the fixed guide rail 2; an upper conductive ball channel 13 in a circular ring shape is formed between the fixed guide rail 2 and the upper shell 11, a plurality of first conductive balls 3, a first upper conductive sheet 4 electrically connected with a live wire of a terminal electrical appliance and a first lower conductive sheet 5 electrically connected with a power live wire are arranged in the upper conductive ball channel 13, the first upper conductive sheet 4 is laid on the upper shell 11 along the upper conductive ball channel 13, the first lower conductive sheet 5 is laid on the fixed guide rail 2 along the upper conductive ball channel 13, the first conductive balls 3 are arranged between the first upper conductive sheet 4 and the first lower conductive sheet 5, and the upper side and the lower side of each first conductive ball 3 are respectively contacted with the first upper conductive sheet 4 and the first lower conductive sheet 5; a lower conductive ball channel 14 in a circular ring shape is formed between the fixed guide rail 2 and the lower shell 12, a plurality of second conductive balls 6, a second upper conductive plate 7 electrically connected with a power supply zero line and a second lower conductive plate 8 electrically connected with a zero line of a terminal electrical appliance are arranged in the lower conductive ball channel 14, the second upper conductive plate 7 is laid on the fixed guide rail 2 along the lower conductive ball channel 14, the second lower conductive plate 8 is laid on the lower shell 12 along the lower conductive ball channel 14, the second conductive balls 6 are arranged between the second upper conductive plate 7 and the second lower conductive plate 8, and the upper side and the lower side of the second conductive balls 6 are respectively in contact with the second upper conductive plate 7 and the second lower conductive plate 8.

When the rotating shell 1 rotates relative to the fixed guide rail 2, the live wire end of the power supply conducts current to the first lower conducting strip 5 on the fixed guide rail 2 through a wire, and then the first lower conducting strip is conducted with the first upper conducting strip 4 on the upper shell 11 through the first conducting ball 3, and the first upper conducting strip 4 conducts the current to the live wire end of the terminal electric appliance through the wire; the zero line end of terminal electrical apparatus passes through wire and the conducting strip 8 switches on under the second on inferior valve 12, conducting strip 7 switches on through the second on the electrically conductive ball 6 and the second on the fixed guide rail 2, conducting strip 7 passes through the wire and links to each other with the zero line end of power on the second, form electrically conductive return circuit, thereby realize the electricity between two parts of relative rotation and connect, and electrically conductive ball, go up the conducting strip and be rolling contact between the conducting strip down, wearing and tearing are little, guarantee low level signal's transmission quality, and still have reliable and stable in structure, long service life, wide advantage of application scope.

Illustratively, an upper supporting ball channel 15 in a circular ring shape is formed between the fixed guide rail 2 and the upper shell 11, and a plurality of first supporting balls 9 are arranged in the upper supporting ball channel 15; a lower supporting ball passage 16 in a circular ring shape is formed between the fixed guide rail 2 and the lower casing 12, and a plurality of second supporting balls 10 are arranged in the lower supporting ball passage 16. Therefore, the arrangement of the first supporting ball 9 and the second supporting ball 10 plays a role in supporting rotation, abrasion between the conductive balls and the conductive sheets is further reduced, and the service life of a product is prolonged.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (3)

1. A bearing type electric rotary connector is characterized by comprising a rotary shell and a fixed guide rail, wherein the rotary shell is made of insulating materials, the rotary shell is formed by connecting an upper shell and a lower shell, the fixed guide rail is arranged between the upper shell and the lower shell and is rotationally connected with the rotary shell, a shaft sleeve used for connecting a fixed shaft is arranged at the center of the fixed guide rail, and an installation part used for connecting a terminal electric appliance is arranged at the periphery of the rotary shell;

an annular upper conductive ball channel is formed between the fixed guide rail and the upper shell, a plurality of first conductive balls, a first upper conductive sheet electrically connected with a live wire of a terminal electric appliance and a first lower conductive sheet electrically connected with a power live wire are arranged in the upper conductive ball channel, the first upper conductive sheet is laid on the upper shell along the upper conductive ball channel, the first lower conductive sheet is laid on the fixed guide rail along the upper conductive ball channel, the first conductive balls are arranged between the first upper conductive sheet and the first lower conductive sheet, and the upper side and the lower side of each first conductive ball are respectively contacted with the first upper conductive sheet and the first lower conductive sheet;

the fixed guide rail with be formed with the annular lower conductive ball passageway of circle between the inferior valve, be equipped with a plurality of second conductive balls down in the conductive ball passageway, with the second upper conducting strip of power zero line electricity connection and with the second lower conducting strip of terminal electrical apparatus zero line electricity connection, the second upper conducting strip along conductive ball passageway is laid down on the fixed guide rail, the second lower conducting strip along conductive ball passageway is laid down on the inferior valve, the conductive ball setting of second is in between conductive strip and the second lower conducting strip on the second, just the upper and lower both sides of the conductive ball of second respectively with conductive strip and second lower conducting strip contact on the second.

2. The electrical rotary bearing connector of claim 1, wherein an annular upper support ball channel is formed between the fixed rail and the upper housing, and a plurality of first support balls are disposed in the upper support ball channel.

3. The electrical rotary bearing connector as defined in claim 1, wherein a lower supporting ball passage is formed between the fixed rail and the lower housing in a circular ring shape, and a plurality of second supporting balls are provided in the lower supporting ball passage.

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