CN217845066U - Conductive plastic angular displacement sensor capable of measuring 360-degree angle - Google Patents

Abstract

The utility model discloses a 360 angle's of measurable quantity conducting plastic angular displacement sensor, which comprises an outer shell, the apparatus further comprises a rotating shaft, the resistive element, insulation support, collector ring and brush, collector ring and insulation support suit are in proper order in the pivot and all pass the central through-hole of resistive element, the brush is including the first brush of locating resistive element one side, the second brush and the third brush of locating the resistive element opposite side, the front of resistive element is equipped with first resistance area and conductive band, the back of resistive element is equipped with second resistance area, first brush contacts with first resistance area, the second brush contacts with the conductive band, the third brush contacts with the second resistance area, the first end in first resistance area and the first end in second resistance area are connected with power input wire, the second end in first resistance area and the second end interconnect conductive connection in second resistance area. The utility model discloses a pivot and 360 angular surveying of measurand equipment rotating member have satisfied the application demand, have enlarged the range of application.

Description

Conductive plastic angular displacement sensor capable of measuring 360-degree angle

Technical Field

The utility model relates to a conductive plastic angular displacement sensor (or potentiometer), in particular to a conductive plastic angular displacement sensor (or potentiometer) capable of measuring 360 degrees.

Background

The angular displacement sensor (or potentiometer) is widely applied to complete machine systems of ships, aviation, aerospace, weapons, ships and the like, and is used for controlling and feeding back an angular displacement signal.

In the traditional conductive plastic angular displacement sensor, because the conductive plastic resistance band on the resistor body is an open-loop circular ring, and two ends of the conductive plastic resistance band are connected with the anode and the cathode of a power supply, the measurement angle range of the traditional conductive plastic angular displacement sensor is always smaller than 360 degrees, and the general measurement angle range is below 270 degrees.

Therefore, the conventional conductive plastic angular displacement sensor cannot be used in applications where the angle is close to or up to 360 °, so that the application range is limited.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a conductive plastic angular displacement sensor capable of measuring 360 ° angle for solving the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a conductive plastic angular displacement sensor capable of measuring 360 degrees comprises a shell, a rotating shaft, a resistor body, an insulating sleeve, a collector ring and an electric brush, wherein the rotating shaft penetrates through a corresponding through hole in the shell and is connected with the shell through a bearing, the resistor body is installed in the shell, the rotating shaft penetrates through a central through hole of the resistor body, the insulating sleeve is sleeved on the rotating shaft, the collector ring is sleeved on the insulating sleeve, the electric brush is installed on the collector ring and is in contact with the resistor body, the collector ring and the insulating sleeve both penetrate through the central through hole of the resistor body, the electric brush comprises a first electric brush, a second electric brush and a third electric brush which are mutually conducted through the collector ring, the first electric brush and the second electric brush are positioned on the same side of the resistor body, and the third electric brush is positioned on the other side of the resistor body, the front surface of the resistor body is provided with a first resistance belt which is annular and open-loop and a conductive belt which is annular and closed, the back surface of the resistor body is provided with a second resistance belt which is arc-shaped, the first resistance belt, the second resistance belt and the conductive belt are concentric and the center of the circle is positioned on the central line of the rotating shaft, the first electric brush is contacted with the first resistance belt, the second electric brush is contacted with the conductive belt, the third electric brush is contacted with the second resistance belt, the first end of the first resistance belt and the first end of the second resistance belt are respectively connected with two power input leads of the resistor body, the first end of the first resistance belt and the first end of the second resistance belt are mutually overlapped or project to the connecting line on the front surface of the resistor body to pass through the center of the first resistance belt, and any position of the conductive belt is connected with the signal output lead of the resistor body, the second end of the first resistance band and the second end of the second resistance band are mutually connected in a conductive manner, and a connecting line which projects from the second end of the first resistance band and the second end of the second resistance band to the front surface of the resistor body passes through the center of the first resistance band. The front and back surfaces of the resistor are two large flat surfaces of the resistor, and one surface to which the lead is connected is generally referred to as a front surface.

Preferably, in order to ensure accurate measurement of 360 ° angles and facilitate connection of a first resistance band and a second resistance band, and facilitate connection of leads, the first resistance band is located outside the circumference of the conductive band, the first resistance band and the second resistance band project to the front face of the resistor body to form a same closed circle, a first end of the first resistance band extends outward from the circumference and is provided with a first welding through hole at the position on the resistor body, a second end of the first resistance band extends outward from the circumference and is provided with a second welding through hole at the position on the resistor body, a first end of the second resistance band extends inward from the circumference and is provided with a third welding through hole at the position on the resistor body, the second end of the first resistance band and the second end of the second resistance band are conductively connected through the second welding through hole, a position on the conductive band between the two ends of the first resistance band extends outward from the circumference and is provided with a fourth welding through hole on the resistor body, the first welding through hole and the third through hole on the front face of the resistor body are respectively connected with two power input leads of the welding through hole, and the four signal output leads of the resistor body are connected with the welding through hole.

The beneficial effects of the utility model reside in that:

the utility model discloses a set up first resistance area and second resistance area at the front and the back of resistive element respectively, and utilize first resistance area and second resistance area to form just 360 resistance area regions and do not influence being connected with the power input wire, and will follow first resistance area and second resistance and take the change signal of telecommunication of measuring all to transmit the outside through the conduction band, thereby realized 360 angle measurements of pivot and measurand equipment rotating member, the application demand has been satisfied, the range of application has been enlarged.

Drawings

Fig. 1 is a schematic sectional view of a conductive plastic angular displacement sensor capable of measuring 360 ° angles according to the present invention;

fig. 2 is a schematic top view of a resistor body of the conductive plastic angular displacement sensor of the present invention capable of measuring 360 ° angle;

fig. 3 is a schematic view of the bottom view structure of the resistor body of the conductive plastic angular displacement sensor capable of measuring 360 ° angle according to the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1, 2 and 3, the conductive plastic angular displacement sensor of the present invention capable of measuring 360 ° angle comprises a housing, a rotating shaft 7, a resistor 5, an insulating sleeve 8, a collecting ring 4 and brushes, wherein the housing is formed by connecting a housing base 2 and a cover plate 1, the rotating shaft 7 passes through a corresponding through hole on the cover plate 1 and is respectively connected with the cover plate 1 and the housing base 2 through a bearing 6, the resistor 5 is installed in the housing, the rotating shaft 7 passes through a central through hole 57 of the resistor 5, the insulating sleeve 8 is sleeved on the rotating shaft 7, the collecting ring 4 is sleeved on the insulating sleeve 8, the brushes are installed on the collecting ring 4 and are in contact with the resistor 5, a lead 3 correspondingly connected with the resistor 5 passes through a corresponding through hole on the housing, the collecting ring 4 and the insulating sleeve 8 both pass through the central through hole of the resistor 5, the brushes comprise a first brush 10, a second brush 9 and a third brush 11 which are mutually conducted through the collecting ring 4, the first brush 10 and the second brush 9 are located on the same side (upper side in fig. 1) of the resistor 5, the third brush 11 is located on the other side (lower side in fig. 1) of the resistor 5, the front surface of the resistor 5 is provided with a circular ring-shaped and open-loop first resistance band 51 and a circular ring-shaped and closed conductive band 54, the back surface of the resistor 5 is provided with a circular arc-shaped second resistance band 58, the first resistance band 51, the second resistance band 58 and the conductive band 54 are concentric with each other and the center of the rotating shaft 7 is located on the center line of the rotating shaft 7, the first brush 10 is in contact with the first resistance band 51, the second brush 9 is in contact with the conductive band 54, the third brush 11 is in contact with the second resistance band 58, the first end of the first resistance band 51 and the first end of the second resistance band 58 are respectively connected with two power input leads (i.e. two power supply lines in the lead 3) of the resistor 5, the first end of the first resistive strip 51 and the first end of the second resistive strip 58 overlap each other (or do not overlap but the line projected on the front surface of the resistive element 5 passes through the center of the first resistive strip 51), an arbitrary position of the conductive strip 54 is connected to the signal output lead of the resistive element 5 (i.e., one signal line in the lead 3), the second end of the first resistive strip 51 and the second end of the second resistive strip 58 are electrically connected to each other, and the second end of the first resistive strip 51 and the second end of the second resistive strip 58 overlap each other (or do not overlap but the line projected on the front surface of the resistive element 5 passes through the center of the first resistive strip 51).

Preferably, in order to ensure an accurate measurement of an angle of 360 ° and to facilitate connection of the first resistive strip 51 and the second resistive strip 58 and connection of the leads 3, the first resistive strip 51 is located outside the circumference of the conductive strip 54, the first resistive strip 51 and the second resistive strip 58 project onto the front face of the resistive element 5 to form one and the same closed circle, the first end of the first resistive strip 51 extends outside the circumference and is provided with a first welding via 52 at that location on the resistive element 5, the second end of the first resistive strip 51 extends outside the circumference and is provided with a second welding via 56 at that location on the resistive element 5, the first end of the second resistive strip 58 extends inside the circumference and is provided with a third welding via 53 at that location on the resistive element 5, the second end of the first resistive strip 51 and the second end of the second resistive strip 58 are conductively connected by means of the second welding via 56, the first welding via 52 and the third welding via 53 on the conductive strip 54 close to the location between the ends of the first resistive strip 51 extends outside the circumference and is provided with a fourth welding via 55 at that location on the front face of the resistive element 5, the first welding via 52 and the third welding via 53 are connected to the respective input leads of the front face of the resistive element 5, and to the output leads 55 of the resistive element 5, and to the output leads 5.

As shown in fig. 1-3, in use, a rotating element of an apparatus to be measured is connected to an outer end of a rotating shaft 7, the rotating element drives the rotating shaft 7 to rotate, the rotating shaft 7 drives an insulating sleeve 8, a current collecting ring 4, a first brush 10, a second brush 9 and a third brush 11 to synchronously rotate, the first brush 10 slides on a first resistance band 51 in a contact manner, the third brush 11 does not contact with a second resistance band 58, when the first brush 10 slides to a position between two ends of the first resistance band 51, the third brush 11 slides on the second resistance band 58 in a contact manner, so that a continuously-changing electric signal is always output in a range of 360 °, the second brush 9 always slides on a conductive band 54, and the continuously-changing electric signals collected by the first brush 10 and the third brush 11 are transmitted to an external angular displacement controller through a lead 3, thereby realizing a 360 ° angular displacement measurement function.

Above-mentioned embodiment is only the preferred embodiment of the utility model, and it is not right the utility model discloses technical scheme's restriction, as long as do not pass through creative work can be realized on the basis of above-mentioned embodiment's technical scheme, all should regard as falling into the utility model discloses a right protection within range.

Claims (2)

1. The utility model provides a but 360 angle of measurement's conducting plastic angular displacement sensor, includes shell, pivot, resistive element, insulation support, collector ring and brush, the pivot passes corresponding through-hole on the shell and through the bearing with the shell is connected, the resistive element install in the shell, the pivot passes the central through-hole of resistive element, the insulation support suit is in the pivot, the collector ring suit is in on the insulation support, the brush is installed on the collector ring and with the resistive element contact, its characterized in that: the collector ring and the insulating sleeve both penetrate through a central through hole of the resistor body, the electric brushes comprise a first electric brush, a second electric brush and a third electric brush which are mutually conducted through the collector ring, the first electric brush and the second electric brush are positioned on the same side of the resistor body, the third electric brush is positioned on the other side of the resistor body, a first resistance belt and a circular-ring-shaped and open-loop conductive belt are arranged on the front surface of the resistor body, a circular-arc-shaped second resistance belt is arranged on the back surface of the resistor body, the first resistance belt, the second resistance belt and the conductive belt are concentric and the center of a circle is positioned on a central line of the rotating shaft, the first electric brush is in contact with the first resistance belt, the second electric brush is in contact with the conductive belt, the third electric brush is in contact with the second resistance belt, the first end of the first resistance belt and the first end of the second resistance belt are mutually overlapped or the first end of the second resistance belt and the first end of the second resistance belt are respectively connected with two power input leads of the resistor body, the first end of the first resistance belt and the second end of the second resistance belt are mutually overlapped or the second end of the resistance belt is connected with the second end of the second resistance belt, and the second end of the second resistance belt is connected with the center of the second end of the second resistance belt.

2. The electrically conductive plastic angular displacement sensor capable of measuring 360 ° angles of claim 1, wherein: the first resistance belt is located outside the circumference of the conductive belt, the first resistance belt and the second resistance belt project to the front face of the resistor body to form a same closed ring, the first end of the first resistance belt extends outwards towards the circumference and is provided with a first electric welding through hole at the position on the resistor body, the second end of the first resistance belt extends outwards towards the circumference and is provided with a second electric welding through hole at the position on the resistor body, the first end of the second resistance belt extends inwards towards the circumference and is provided with a third electric welding through hole at the position on the resistor body, the second end of the first resistance belt and the second end of the second resistance belt are in conductive connection through the second electric welding through hole, the position on the conductive belt, which is close to the position between the two ends of the first resistance belt, extends outwards towards the circumference and is provided with a fourth electric welding through hole at the position on the resistor body, the first electric welding through hole and the third electric welding through hole on the front face of the resistor body are respectively connected with the two power input leads of the resistor body, and the fourth electric welding through hole on the front face of the resistor body is connected with the signal output lead.

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