Redisplay device for displaying course angle

Abstract

The invention relates to the technical field of course data processing, in particular to a repeating device for displaying course angles, which is characterized in that a surface frame is mounted on a shell, a shielding glass plate is mounted on the surface frame, and scribed lines are arranged on the shielding glass plate; the first stepping motor is installed in the shell and provided with a rotatable hollow shaft. The first dial is in driving connection with the hollow shaft, the measuring range of the first dial is 360 degrees / revolution, and the first dial corresponds to the shielding glass plate; the second stepping motor is installed in the shell and provided with a rotatable transmission shaft, and the transmission shaft is arranged in the hollow shaft in a penetrating mode. The second dial is in driving connection with the transmission shaft, the measuring range of the second dial is 10 degrees / revolution, and the second dial corresponds to the shielding glass plate; the circuit board is arranged in the shell and connected to the first stepping motor and the second stepping motor. According to the invention, the assembling convenience and compatibility of the repeating device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of heading data processing, and in particular to a repeating device for displaying heading angles. Background Art

[0002] The existing repeater device for displaying heading angle is an overall open structure, which uses a motor to drive a dial through multiple sets of gear transmission to achieve heading repeat. It has many parts, is large and bulky, has complex processing procedures, high precision requirements, and complex assembly procedures. The overall reliability is not high, which is not conducive to installation, debugging and maintenance. It has loud noise during operation and is inconvenient to adjust zero. The overall open structure is also not conducive to the overall electromagnetic compatibility shielding of the chassis. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention provides a repeater device for displaying heading angles, which solves the technical problems of traditional repeaters with heavy assembly loads and poor compatibility, and improves the convenience of assembly of the repeater device.

[0004] The present invention provides a repeating device for displaying a heading angle, comprising: A housing, wherein a face frame is mounted on the housing, a shielding glass plate is mounted on the face frame, and a score line is provided on the shielding glass plate; A first stepper motor, the first stepper motor is installed in the housing, and the first stepper motor has a rotatable hollow shaft; A first dial, the first dial is drivingly connected to the hollow shaft, the measuring range of the first dial is 360° / revolution, and the first dial corresponds to the shielding glass plate; A second stepper motor, the second stepper motor is installed in the housing, the second stepper motor has a rotatable transmission shaft, and the transmission shaft passes through the hollow shaft; a second scale plate, the second scale plate being drivingly connected to the transmission shaft, the measuring range of the second scale plate being 10° / revolution, and the second scale plate corresponding to the shielding glass plate; A circuit board is arranged in the housing, and the circuit board is connected to the first stepper motor and the second stepper motor.

[0005] A further improvement of the repeating device for displaying heading angle of the present invention is that it also includes a light shield installed on the housing.

[0006] A further improvement of the repeating device for displaying heading angles of the present invention is that the sunshade is provided with a flange and a plurality of notches, the flange is connected to the face frame, the face frame is provided with a mounting column, and the notches are clamped on the mounting column.

[0007] A further improvement of the repeating device for displaying heading angle of the present invention is that a support plate is arranged in the shell, a plurality of pillars are arranged at intervals on the support plate, and the circuit board is mounted on the pillars.

[0008] A further improvement of the repeating device for displaying heading angle of the present invention is that the circuit board is also provided with an illumination lamp and a backlight lamp.

[0009] A further improvement of the device for displaying heading angle of the present invention is that the circuit board is also provided with a key assembly, and the key assembly is used to control the brightness of the lighting lamp and the backlight; The face frame is provided with a button hole, and the button assembly is installed in the button hole.

[0010] A further improvement of the repeating device for displaying heading angle of the present invention is that the circuit board is also provided with a digital display tube, and the digital display tube is used to display heading data; The face frame is provided with a digital display hole, and the digital display tube is installed in the digital display hole.

[0011] A further improvement of the repeating device for displaying heading angle of the present invention is that it also includes an electrical connector arranged on the shell, and the electrical connector is used to connect an external power supply device, the circuit board, the first stepper motor and the second stepper motor.

[0012] A further improvement of the repeater device for displaying heading angles of the present invention is that the side surface of the first dial close to the shielding glass plate is recessed inward to form a mounting groove, the second dial is located in the mounting groove, and the top surface of the second dial is flush with the top surface of the first dial.

[0013] A further improvement of the repeating device for displaying heading angle of the present invention is that the material of the first scale plate is a milky white organic glass plate, and the material of the second scale plate is a transparent organic glass plate.

[0014] The invention drives the first dial and the second dial to rotate by controlling the first stepper motor and the second stepper motor which are independent of each other, so the control is simple, the noise is small and the reliability is high; the second dial is 10 degrees / revolution, and the first dial is 360 degrees / revolution, so as to maintain the traditional dial display function, the minimum scale of the coarse dial is 5 degrees, and the minimum scale of the fine dial is 0.1 degrees, and the rotation ratio of the coarse and fine dials of 1:36 is controlled by the software on the circuit board in combination with the processor, and the accurate heading value is given by the combined reading of the coarse and fine dials; through the drive and control of the circuit board, the key in the key assembly can be pressed in any direction to enter the dimming working state; the invention has a simple structure, is easy to assemble and disassemble, has low noise, good stability and high reliability, and adopts anti-electromagnetic radiation measures such as shielding glass plates and conductive rubber strips to form a closed electromagnetic shielding space inside, which not only improves the anti-interference ability, but also greatly reduces the internal electromagnetic radiation to the outside.

[0015] The present invention adopts coaxial coarse scale and fine scale, and realizes heading display by direct driving of stepping motor, without manual zeroing; the backlight and pointer brightness of fine and coarse scale are adjustable, and there is digital auxiliary display function; the sunshade is easy to disassemble and can adjust the angle to adapt to various light environments.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The present invention is a cross-sectional schematic diagram of a repeater device for displaying a heading angle.

[0019] Figure 2 It is a schematic diagram of a face frame in a repeating device for displaying a heading angle provided by the present invention.

[0020] Figure 3 It is a schematic diagram of a light shield in a repeater device for displaying a heading angle provided by the present invention.

[0021] Figure 4 It is a schematic diagram of a shielding glass plate in a repeating device for displaying a heading angle provided by the present invention.

[0022] Figure 5 yes Figure 4Schematic cross-sectional view at AA in the middle.

[0023] Figure 6 The present invention is a schematic diagram of a circuit board in a repeater device for displaying a heading angle provided by the present invention.

[0024] Figure 7 It is a schematic diagram of a repeating device for displaying a heading angle provided by the present invention.

[0025] Reference numerals: 1. Sunshade; 101. Flanged edge; 102. Notch; 2. Shielding glass plate; 21. Bevel; 22. Engraved line; 3. Second dial; 4. First dial; 5. Transmission shaft; 6. Circuit board; 61. Illuminating lamp; 62. Backlight; 63. Processor chip; 64. Sensor; 65. Digital display tube; 66. Silicone button; 7. Face frame; 71. Circular through hole; 72. Digital display hole; 73. Button hole; 74. Mounting column; 75. Rectangular groove; 8. First stepper motor; 9. Pillar; 10. Shell; 11. Electrical connector; 12. Support plate; 13. Second stepper motor. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] Combine the following Figure 1The present invention describes a repeating device for displaying heading angles, comprising: a housing 10, on which a face frame 7 is mounted, on which a shielding glass plate 2 is mounted, on which a scale line 22 is provided; a first stepper motor 8, which is mounted in the housing 10, and which has a rotatable hollow shaft; a first scale plate 4, which is driven and connected to the hollow shaft, and has a measuring range of 360° / revolution, and the first scale plate 4 corresponds to the scale line 22 of the shielding glass plate 2; 2; a second stepper motor 13, the second stepper motor 13 is installed in the housing 10, the second stepper motor 13 has a rotatable transmission shaft 5, the transmission shaft 5 is passed through the hollow shaft; a second dial 3, the second dial 3 is drivingly connected to the transmission shaft 5, the measuring range of the second dial 3 is 10° / revolution, and the second dial 3 corresponds to the shielding glass plate 2; a circuit board 6, the circuit board 6 is arranged in the housing 10, and the circuit board 6 is connected to the first stepper motor 8 and the second stepper motor 13.

[0028] In a preferred embodiment of the device for displaying the heading angle of the present invention, Figure 1 As shown, it also includes a light shield 1 installed on the housing.

[0029] Specifically, Figure 1 and Figure 3 As shown, the light shield 1 is directly formed by a mold, and its shape is a hollow frustum with part of the side wall cut off. The light shield is in the shape of a hollow frustum, and has a flange 101 and a plurality of notches 102. The flange 101 is connected to the face frame 7. The face frame 7 is provided with a mounting post 74. The notches 102 are clamped on the mounting post 74 to prevent the light shield 1 from rotating freely. During use, the staff can adjust the position of the light shield 1 to improve the shading effect of the first dial 4 and the second dial 3, which is convenient for the staff to read.

[0030] Furthermore, if Figure 1 As shown, a support plate 12 is disposed in the housing 10 , a plurality of pillars 9 are disposed at intervals on the support plate 12 , and the circuit board 6 is mounted on the pillars 9 .

[0031] Specifically, Figure 6 As shown, the circuit board 6 is also provided with an illumination lamp 61 and a backlight 62, through which the first dial 4 and the second dial 3 are illuminated, so that the staff can read the readings of the first dial 4 and the second dial 3 in a dark environment.

[0032] Specifically, Figure 2 , Figure 6 and Figure 7As shown, the circuit board 6 is also provided with a key assembly, and the key assembly is used to control the brightness of the lighting lamp 61 and the backlight 62; a key hole 73 is opened on the surface frame 7, and the key assembly is installed in the key hole 73.

[0033] Specifically, Figure 2 , Figure 6 and Figure 7 As shown, the circuit board 6 is further provided with a digital display tube 65 , and the digital display tube 65 is used to display heading data; a digital display hole 72 is opened on the face frame 7 , and the digital display tube 65 is installed in the digital display hole 72 .

[0034] Preferably, the circuit board 6 is a rectangular PCB printed circuit board with a central through hole in the center. The circuit board 6 is equipped with a processor chip 63, two lighting lamps 61 and multiple backlights 62. The positions of the two lighting lamps 61 correspond to the positions of the two oblique edges 21 of the shielding glass plate 2, and the scale lines 22 are illuminated by reflection from the two oblique edges 21. The positions of the multiple backlights 62 correspond to the positions near the scale lines 22 of the shielding glass plate 2, and are used to illuminate the first dial 4 and the second dial 3. A sensor 64 is installed at the edge of the central through hole on the circuit board 6, and the intensity of light can be sensed by the sensor 64. A digital display tube 65 is installed at the lower left corner of the surface of the circuit board 6; a silicone button 66 is installed at the position corresponding to the button hole in the lower right corner of the face frame 7, and the button assembly is installed corresponding to the silicone button 66; the digital display tube 65 is embedded in the digital display hole 72 of the face frame 7.

[0035] Furthermore, if Figure 4 and Figure 5 As shown, the shielding glass plate 2 is embedded in the circular through hole 71 of the face frame 7. The outer shape of the shielding glass plate 2 is composed of a circle and an isosceles trapezoid. The isosceles trapezoid has two oblique sides 21. The parts of the shielding glass plate 2 corresponding to the two oblique sides 21 are respectively inverted at 45° to the inner side of the bottom surface; the bottom surface of the shielding glass plate 2 corresponds to the intersection of the perpendicular bisectors of the two oblique sides 21 of the isosceles trapezoid. The engraved line 22 is along the symmetry axis of the isosceles trapezoid, and the cross-sectional shape of the engraved line 22 is an isosceles right triangle.

[0036] Furthermore, if Figure 1 As shown, the housing 10 further includes an electrical connector 11 disposed on the housing 10 , and the electrical connector 11 is used to connect an external power supply device, the circuit board 6 , the first stepper motor 8 and the second stepper motor 13 .

[0037] Furthermore, if Figure 1 As shown, the top of the first scale plate 4 is recessed inward to form a mounting groove, the second scale plate 3 is located in the mounting groove, and the top surface of the second scale plate 3 is flush with the top surface of the first scale plate 4 .

[0038] Preferably, the second dial 3 is a fine dial, which is circular, has a uniform scale of 10° on the circumference, and a minimum scale of 0.1°; the first dial is a 4-position coarse dial, which is circular, has a through hole in the middle, and the transmission shaft 5 passes through the through hole, has a uniform scale of 360° on the circumference, and a minimum scale of 5°. The diameter of the coarse dial is larger than the diameter of the fine dial, so that the fine dial does not block the scale of the coarse dial after assembly; the bottom surfaces of the fine dial and the coarse dial are both provided with rectangular reflective strips at the position facing the sensor 64 on the circuit board 6.

[0039] Preferably, the first stepper motor 8 is fixed to the bottom surface of the circuit board 6 by screws; the second stepper motor 13 is fixed to the bottom surface of the support plate 12 by screws; the hollow shaft of the first stepper motor 8 passes through the central through hole of the circuit board 6 and is fixedly connected to the center of the coarse scale dial; the transmission shaft 5 of the second stepper motor 13 passes through the central through hole of the support plate 12 and the motor shaft of the first stepper motor 8 in sequence, and is then fixedly connected to the center of the fine scale dial located above the coarse scale dial; the center of the shielding glass plate 2, the center of the fine scale dial, the center of the coarse scale dial, the transmission shaft 5 and the hollow shaft are on the same axis; the first stepper motor 8 directly drives the coarse scale dial to rotate, and the second stepper motor 13 drives the fine scale dial to rotate relative to the coarse scale dial through the transmission shaft 5.

[0040] Preferably, the shell 10 and the face frame 7 are connected by screws, a rectangular groove 75 is provided on the bottom surface of the face frame 7, a conductive rubber strip is provided in the rectangular groove 75, and the edge of the shell 10 is embedded in the rectangular groove 75 to enclose the circuit board 6, the fine scale dial, the coarse scale dial, the first stepper motor 8, the second stepper motor 13 and the support plate 12.

[0041] Preferably, the face frame 7 and the shell 10 are made of aluminum alloy material with high structural strength and low specific gravity, which not only ensures the strength of the repeater device for displaying the heading angle, but also provides overall physical sealing protection and electromagnetic compatibility protection, with a high protection level and simple and convenient maintenance.

[0042] Preferably, the sunshade 1 is made of high-strength, light-proof plastic, and has a beautiful appearance and a significant light-shielding effect.

[0043] Preferably, the shielding glass plate 2 is made of silicon glass material with good wear resistance, with a shielding wire mesh embedded in the middle, which provides a good electromagnetic shielding effect while ensuring good light transmittance.

[0044] Preferably, the fine scale plate adopts a transparent organic glass plate, and the coarse scale plate adopts a milky white organic glass plate, and the scale is printed at an appropriate position on the front of the glass plate by screen printing to ensure that the scale lines can be illuminated through the organic glass from the back without seeing the lighting 61 and backlight 62 on the bottom.

[0045] The present invention drives the first dial 4 and the second dial 3 to rotate by controlling the first stepper motor 8 and the second stepper motor 13 which are independent of each other, so the control is simple, the noise is small and the reliability is high; the second dial 3 is 10° / rotation, and the first dial 4 is 360° / rotation to maintain the traditional dial display function, the minimum scale of the coarse dial is 5°, and the minimum scale of the fine dial is 0.1°, and the rotation ratio of the coarse and fine dials of 1:36 is controlled by the software on the circuit board 6 in combination with the processor, and the accurate heading value is given by the combined reading of the coarse and fine dials; through the drive and control of the circuit board 6, the key in the key assembly can be pressed in any direction to enter the dimming working state; the present invention has a simple structure, is easy to assemble and disassemble, has low noise, good stability and high reliability, and adopts anti-electromagnetic radiation measures such as the shielding glass plate 2 and the conductive rubber strip to form a closed electromagnetic shielding space inside, which not only improves the anti-interference ability, but also greatly reduces the internal electromagnetic radiation to the outside.

[0046] The present invention adopts coaxial coarse scale and fine scale, and realizes heading display by direct driving of stepping motor, without manual zeroing; the backlight and pointer brightness of fine and coarse scale are adjustable, and there is a digital auxiliary display function; the sunshade 1 is easy to disassemble and can adjust the angle to adapt to various light environments.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A repeating device for displaying heading angle, characterized in that: include: A housing, wherein a face frame is mounted on the housing, a shielding glass plate is mounted on the face frame, and a score line is provided on the shielding glass plate; A first stepper motor, the first stepper motor is installed in the housing, and the first stepper motor has a rotatable hollow shaft; A first dial, the first dial is drivingly connected to the hollow shaft, the measuring range of the first dial is 360° / revolution, and the first dial corresponds to the shielding glass plate; A second stepper motor, the second stepper motor is installed in the housing, the second stepper motor has a rotatable transmission shaft, and the transmission shaft passes through the hollow shaft; a second scale plate, the second scale plate being drivingly connected to the transmission shaft, the measuring range of the second scale plate being 10° / revolution, and the second scale plate corresponding to the shielding glass plate; A circuit board is arranged in the housing, and the circuit board is connected to the first stepper motor and the second stepper motor.

2. The device for displaying heading angle according to claim 1, characterized in that: Also included is a light shield mounted on the housing.

3. The device for displaying heading angle according to claim 2, characterized in that: The light shield is provided with a flange and a plurality of notches, the flange is connected to the face frame, the face frame is provided with a mounting column, and the notches are clamped on the mounting column.

4. The device for displaying heading angle according to claim 1, characterized in that: A support plate is arranged in the shell, a plurality of pillars are arranged at intervals on the support plate, and the circuit board is mounted on the pillars.

5. The device for displaying heading angle according to claim 4, characterized in that: The circuit board is also provided with an illumination lamp and a backlight lamp.

6. The device for displaying heading angle according to claim 5, characterized in that: The circuit board is also provided with a key assembly, and the key assembly is used to control the brightness of the lighting lamp and the backlight; The face frame is provided with a button hole, and the button assembly is installed in the button hole.

7. The device for displaying heading angle according to claim 6, characterized in that: The circuit board is also provided with a digital display tube, and the digital display tube is used to display heading data; A digital display hole is provided on the face frame, and the digital display tube is installed in the digital display hole.

8. The device for displaying heading angle according to claim 1, characterized in that: It also includes an electrical connector arranged on the shell, and the electrical connector is used to connect an external power supply device, the circuit board, the first stepper motor and the second stepper motor.

9. The device for displaying heading angle according to claim 1, characterized in that: The side surface of the first scale plate close to the shielding glass plate is recessed inward to form a mounting groove, the second scale plate is located in the mounting groove, and the top surface of the second scale plate is flush with the top surface of the first scale plate.

10. The device for displaying heading angle according to claim 9, characterized in that: The first scale plate is made of a milky white organic glass plate, and the second scale plate is made of a transparent organic glass plate.

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