CN102840873A

CN102840873A - Angular sensor

Info

Publication number: CN102840873A
Application number: CN2012103075814A
Authority: CN
Inventors: 严伟
Original assignee: NINGBO HUAYU ELECTRONIC CO Ltd
Current assignee: NINGBO HUAYU ELECTRONIC CO Ltd
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2012-12-26
Anticipated expiration: 2032-08-27
Also published as: CN102840873B

Abstract

The invention discloses an angular sensor and belongs to an electromechanical component. The angular sensor comprises a revolving shaft, a base seat, a first binding post, a second binding post, a third binding post, a resistor body, an electric brush, a conducting ring, an insulation lining seat and an outer cover. A resistor layer is arranged on the left end surface of the resistor body, the resistor layer is of circular shape with an opening, and two ends of the opening of the resistor layer are electrically connected with the first binding post and the second binding post respectively. One end of the electric brush is tightly pressed on the resistor layer, the other end of the electric brush is fixedly connected with the conducting ring, the conducting ring is sleeved on the insulation lining seat and connected with the insulation ling seat in bonding mode, the insulation lining seat is sleeved at the left end of the revolving shaft, the second binding post is electrically connected with the conducting ring through ring brush wires, wherein the diameter of the left end of the revolving shaft is smaller than that of the right end of the revolving shaft, and the insulation lining seat is connected with the left end of the revolving shaft in bonding mode. A ring-shaped boss is arranged at the right end of the resistor body. The first binding post, the second binding post and the third binding post are arranged on the ring-shaped boss. The right end of the ring-shaped boss is connected with the left end of the base seat in bonding mode and the right end of the outer cover is connected with the left end of the base seat in bonding mode. The angular sensor is small in size and compact in structure.

Description

Angular transducer

Technical field:

The present invention relates to a kind of electromechanical compo, specifically is a kind of angular transducer that is widely used in each electron-like tracker and the electronic equipment.

Background technology:

Angular transducer is a kind ofly can convert the displacement of the lines of machinery or angular displacement input quantity into the resistance that becomes certain funtcional relationship with it or the sensing element of voltage output; It also is widely used in physical quantitys such as gaging pressure, acceleration, liquid level except being used for displacement of the lines and angle displacement measurement.Existing angular transducer is as shown in Figure 3; It comprises rotating shaft 104, base 106, first binding post 107, second binding post, 114 (see figure 4)s, the 3rd binding post 115 (see figure 4)s, resistive element 109, brush 110, conducting ring 101, insulation lining seat 100 and covers on the outside outer cover 111 of resistive element 109, brush 110, conducting ring 101, insulation lining seat 100; Outer cover 111 is connected with base 106 through screw 102; Rotating shaft 104 is contained on the base 106 through bearing 105, and first binding post 107, second binding post 114 and the 3rd binding post 115 are contained on the annular protrusion 108 that base 106 left ends are provided with, and resistive element 109 is contained on the step of annular protrusion 108 inner chambers; Resistive element 109 left sides are provided with resistive layer 113 (see figure 4)s; Resistive layer 113 is the annular that has opening, and the opening two ends of resistive layer 113 are electrically connected with first binding post 107 and the 3rd binding post 115 respectively through rivet, thereby brush 110 1 ends are pressed on the resistive layer 113 and are electrically connected with resistive layer 113; Brush 110 other ends are fixedly connected with conducting ring 101; Second binding post 114 is electrically connected with conducting ring 101 through ring brush silk, and conducting ring 101 is enclosed within on the insulation lining seat 100 and is bonding with insulation lining seat 100, and insulation serves as a contrast 100 and is enclosed within the rotating shaft 104; Be connected with trundle 103 in the rotating shaft 104; Insulation lining seat 100 right-hand members are provided with gap, and gap is stuck on the trundle 103, and rotating shaft 104 left end cards are useful on the circlip 112 that stops that insulation lining seat 100 is deviate from.We know; Present many electronics trackers or electronic equipment be all towards miniaturization development, and this development trend forces and is positioned at its inner electromechanical compo (like angular transducer) and also will and then diminishes, yet the volume of above-mentioned angular transducer is bigger; The development trend that can't adapt to miniaturization again; Be embodied in: 1, from radially: 1. rotating shaft 104 right-hand members will be connected with outside parts usually, and its diameter is generally 3mm, and rotating shaft 104 left ends need not to cooperate with exterior part; Its diameter also is made into 3mm, and this can increase the radial dimension that is contained in the corresponding parts of rotating shaft 104 left ends (like insulation lining seat 100 and conducting ring 101) undoubtedly; 2. the revolving force of rotating shaft 104 passes to brush 110 by trundle 103 and insulation lining seat 100; For guaranteeing the intensity of insulation lining seat 100 perisporiums; Prevent that it from being twisted off by trundle when transferring power; It is thicker that the perisporium of insulation lining seat 100 is generally all made, and correspondingly, the diameter of conducting ring 101 is also along with becoming big; 3. annular protrusion 108 occupies bigger radial space; 4. be positioned at outer cover 111 outside screw 102 heads and also can occupy certain radial space; 2, from axial analysis: use circlip 112 to stop that insulation serves as a contrast the axial length that seat 100 is deviate from can increase rotating shaft 104, causes to occupy certain axial space.

Summary of the invention:

The technical matters that the present invention will solve is to provide a kind of volume less, the angular transducer of compact conformation.

Technical solution of the present invention is that a kind of angular transducer with following structure is provided: comprise rotating shaft, base, first binding post, second binding post, the 3rd binding post, resistive element, brush, conducting ring, insulation lining seat and cover on resistive element, brush, conducting ring, the outside outer cover of insulation lining seat, rotating shaft is contained on the base through bearing; The resistive element left side is provided with resistive layer, and resistive layer is the annular that has opening, and the opening two ends of resistive layer are electrically connected with first binding post and the 3rd binding post respectively; Brush one end is pressed on the resistive layer; The brush other end is fixedly connected with conducting ring, and conducting ring is enclosed within that insulation lining seat is gone up and is bonding with insulation lining seat, and insulation lining cover for seat is at the rotating shaft left end; Second binding post is electrically connected with conducting ring through ring brush silk; Wherein, the left end diameter of rotating shaft is less than the right-hand member diameter, and insulation lining seat is bonding with the rotating shaft left end; The resistive element right-hand member is provided with annular boss; First binding post, second binding post and the 3rd binding post all are contained on the annular boss, and annular boss right-hand member and base left end are bonding, and outer cover right-hand member and base left end are bonding.

Angular transducer of the present invention, wherein, rotating shaft left end periphery wall is provided with axial plane, and axial plane is arranged in insulation lining seat inner chamber.

After adopting above structure, compared with prior art, angular transducer of the present invention has the following advantages:

1, from radially: 1. for guaranteeing that rotating shaft right-hand member and outside parts are connected; Rotating shaft right-hand member diameter in the angular transducer of the present invention is identical with prior art, is 3mm also, and under the situation that satisfies rotating shaft intensity; With the rotating shaft left end diameter that need not to cooperate with outside parts make less; Be merely 2mm, like this, the radial dimension that is contained in the corresponding parts (like insulation lining seat and conducting ring) on its top will correspondingly reduce; 2. rely on trundle different with the revolving force that insulation lining seat transmits rotating shaft with prior art, will insulate lining seat and rotating shaft left end of angular transducer of the present invention is bonding, bonding after; Insulation lining seat will become as a whole with rotating shaft; This is when transmitting revolving force, and insulation lining seat will rely on self whole circumference sidewall to come transferring power, thus the strength problem of the lining seat perisporium that when manufacturing, need not to consider again to insulate; Therefore; It is relatively thin that the perisporium of insulation lining seat can be made, thereupon, and corresponding the reducing of the diameter of conducting ring meeting; 3. with prior art first binding post, second binding post and the 3rd binding post are contained on the annular protrusion that the base left end is provided with; And then resistive element is contained on the step of annular protrusion inner chamber different; Angular transducer of the present invention directly is contained in first binding post, second binding post and the 3rd binding post on the annular boss that the resistive element right-hand member is provided with; Then that annular boss right-hand member and base left end is bonding; Like this, angular transducer of the present invention has saved the annular protrusion wall thickness that original base left end is provided with, and radially takes up room thereby effectively reduce it; 4. directly and the bonding occupied radial space of former screw head of having saved of base with outer cover;

2, from axial analysis: insulation lining seat saves original circlip that stops that insulation lining seat is deviate from the rotating shaft left end is bonding, thereby effectively shortens the axial length of rotating shaft, reduces axially to take up room.In sum, the volume of angular transducer of the present invention has obtained effectively reducing, and after volume reduced, it is compact more that the each several part structure of invention angular transducer will become, and this has adapted to the development trend of miniaturization.

The setting of axial plane can further guarantee the reliability of its connection after insulation lining seat is bonding with rotating shaft, prevent between insulation lining seat and the rotating shaft skidding to take place.

Description of drawings:

Fig. 1 be angular transducer of the present invention analyse and observe the structure for amplifying synoptic diagram;

Fig. 2 is the left TV structure synoptic diagram when resistive element and first binding post, second binding post and the 3rd binding post are assembled together among Fig. 1;

Fig. 3 be existing angular transducer partly cut open structural representation;

Fig. 4 is the left TV structure synoptic diagram when hiding outer cover and screw among Fig. 3.

Embodiment:

Below in conjunction with accompanying drawing and embodiment angular transducer of the present invention is done further explain:

As shown in Figure 1, in this embodiment, angular transducer of the present invention comprises rotating shaft 8, base 7, first binding post 5, second binding post, 14 (see figure 2)s, the 3rd binding post 15 (see figure 2)s, resistive element 4, brush 11, conducting ring 12, insulation lining seat 3 and covers on the outside outer cover 1 of resistive element 4, brush 11, conducting ring 12, insulation lining seat 3; Outer cover 1 right-hand member is bonding through epoxy glue and base 7 left ends; The left end diameter of rotating shaft 8 is less than the right-hand member diameter, and its left end diameter is 2mm, and the right-hand member diameter is 3mm; Rotating shaft 8 is contained on the base 7 through two bearings 9; All be equipped with one in the rotating shaft 8 of two bearing 9 right ends and be used to the circlip that stops that bearing 9 is deviate from, resistive element 4 left sides are provided with resistive layer 13 (see figure 2)s, and resistive layer 13 is the annular that has opening; The opening two ends of resistive layer 13 are electrically connected with first binding post 5 and the 3rd binding post 15 respectively through rivet; Resistive element 4 right-hand members are provided with annular boss 6, the first binding posts 5, second binding post, 14 (see figure 2)s and the 3rd binding post 15 (see figure 2)s and all are contained on the annular boss 6, and annular boss 6 right-hand members are bonding through epoxy glue and base 7 left ends; Thereby brush 11 1 ends are pressed on the resistive layer 13 and are electrically connected with resistive layer 13; Brush 11 other ends are fixedly connected with conducting ring 12, and conducting ring 12 is enclosed within on the insulation lining seat 3 and is bonding with insulation lining seat 3 through epoxy glue, and insulation lining seat 3 is enclosed within rotating shaft 8 left ends; Insulation lining seat 3 is bonding through epoxy glue and rotating shaft 8 left ends; Rotating shaft 8 left end periphery walls are provided with axial plane 10, and axial plane 10 is arranged in insulation lining seat 3 inner chambers, and second binding post 14 is electrically connected with conducting ring 12 through ring brush silk 2.The principle of work of angular transducer of the present invention is that prior art is identical, so no longer this gives unnecessary details.

Above-described embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.

Claims

1. angular transducer; Comprise rotating shaft (8), base (7), first binding post (5), second binding post (14), the 3rd binding post (15), resistive element (4), brush (11), conducting ring (12), insulation lining seat (3) and cover on resistive element (4), brush (11), conducting ring (12), the outside outer cover (1) of insulation lining seat (3); Rotating shaft (8) is contained on the base (7) through bearing (9); Resistive element (4) left side is provided with resistive layer (13); Resistive layer (13) is the annular that has opening, and the opening two ends of resistive layer (13) are electrically connected with first binding post (5) and the 3rd binding post (15) respectively, and brush (11) one ends are pressed on the resistive layer (13); Brush (11) other end is fixedly connected with conducting ring (12); Conducting ring (12) is enclosed within that insulation lining seat (3) is gone up and is bonding with insulation lining seat (3), and insulation lining seat (3) is enclosed within rotating shaft (8) left end, and second binding post (14) is electrically connected with conducting ring (12) through ring brush silk (2); It is characterized in that: the left end diameter of said rotating shaft (8) is less than the right-hand member diameter; Said insulation lining seat (3) is bonding with rotating shaft (8) left end, and said resistive element (4) right-hand member is provided with annular boss (6), and first binding post (5), second binding post (14) and the 3rd binding post (15) all are contained on the annular boss (6); Annular boss (6) right-hand member and base (7) left end are bonding, and outer cover (1) right-hand member and base (7) left end are bonding.

2. angular transducer according to claim 1 is characterized in that: said rotating shaft (8) left end periphery wall is provided with axial plane (10), and said axial plane (10) is arranged in insulation lining seat (3) inner chamber.