A vibration-resistant angular sensor structure

Abstract

The utility model discloses an anti -vibration angle sensor structure, including the casing and knob piece, the casing is equipped with circuit board and the rotor that makes circuit board different terminal intercommunication through rotation from top to bottom in proper order, and the knob piece lower extreme is connected with the rotation axis that passes through circuit board and rotor and is connected with the rotor, the bottom surface on the inside of casing is equipped with downside bearing, and the rotation axis lower extreme sets in downside bearing, improves stability, prevents knob piece, rotation axis and rotor and appears the swing under the high -frequency vibration state, leads to the problem of unstable signal.

Description

[Technical Field] This utility model relates to a vibration-resistant angle sensor structure. Background Technology] Existing angle sensors, when subjected to high-frequency vibrations (e.g., in hypersonic aircraft), experience signal quality degradation, leading to inaccurate angle feedback and consequently impacting overall product performance. [Utility Model Content] This invention overcomes the shortcomings of the prior art and provides a vibration-resistant angle sensor structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A vibration-resistant angle sensor structure is characterized by comprising a housing and a knob. Inside the housing, a circuit board and a rotor are arranged sequentially from top to bottom. The rotor is connected to a rotating shaft that passes through the circuit board and the rotor and is connected to the rotor. A lower bearing is provided on the bottom surface of the inner side of the housing, and the lower end of the rotating shaft is located in the lower bearing.

[0005] The vibration-resistant angle sensor structure described above is characterized in that: an upper bearing is provided inside the housing on the upper side of the circuit board, and a rotating shaft is disposed inside the upper bearing.

[0006] The vibration-resistant angle sensor structure described above is characterized by having two upper bearings inside the housing.

[0007] The vibration-resistant angle sensor structure described above is characterized in that: a rotor boss is provided on the upper side of the rotor to press against the upper bearing; a circuit board through hole is provided on the circuit board for the rotor boss to pass through; a rotor through hole is provided on the rotor for the shaft to rotate through; a slot is provided on the lower protruding end of the shaft; and a retaining spring is provided in the slot to lock the rotor.

[0008] The vibration-resistant angle sensor structure described above is characterized in that: a rotor through hole positioning part is provided inside the rotor through hole, and a shaft positioning part that cooperates with the rotor through hole positioning part is provided on the rotating shaft.

[0009] The vibration-resistant angle sensor structure described above is characterized in that: the housing includes an upper housing and a lower housing, the upper side and the lower side of the upper housing are respectively provided with an upper mounting cavity and an upper mounting cavity, two upper bearings are respectively disposed in the upper mounting cavity, the circuit board is disposed in the lower mounting cavity, and the lower bearing is disposed in the lower housing.

[0010] The vibration-resistant angle sensor structure described above is characterized in that: the upper housing has an upper mounting cavity with an upper step and a lower mounting cavity with an opening on the upper and lower sides, respectively, and one upper bearing is set on the upper mounting cavity with the other upper bearing is set on the lower mounting cavity with the other upper bearing.

[0011] The vibration-resistant angle sensor structure described above is characterized in that: the lower mounting cavity of the upper housing is provided with a lower mounting cavity step at the opening position, and the circuit board is disposed on the lower mounting cavity step.

[0012] The vibration-resistant angle sensor structure described above is characterized in that: the upper side of the rotor is provided with conductive springs at both ends that are in contact with the circuit board.

[0013] The vibration-resistant angle sensor structure described above is characterized in that: a positioning post is provided on the upper side of the rotor, and a conductive spring is mounted on the positioning post.

[0014] The beneficial effects of this utility model are: This invention features a lower bearing on the inner bottom surface of the housing, which allows the lower end of the rotating shaft to be positioned within the lower bearing. This improves stability and prevents the knob, rotating shaft, and rotor from swaying under high-frequency vibration. Swaying would directly cause the brushes to move on the resistor plate, resulting in unstable signals. [Attached Figure Description] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is one of the exploded views of this utility model; Figure 3 This is the second exploded view of the present invention; Figure 4 This is the third exploded view of the present invention; Figure 5 This is the fourth exploded view of the present invention; Figure 6 This is a cross-sectional view of the present invention. Detailed Implementation] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0017] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, descriptions involving "preferred," "second-best," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "preferred" or "second-best" may explicitly or implicitly include at least one of those features.

[0018] like Figure 1-6 As shown, an anti-vibration angle sensor structure includes a housing 1 and a knob 2. Inside the housing 1, from top to bottom, are a circuit board 3 and a rotor 4, which connects different terminals of the circuit board 3 by rotation. The lower end of the knob 2 is connected to a rotating shaft 5 that passes through the circuit board 3 and the rotor 4 and is connected to the rotor 4. A lower bearing 6 is provided on the inner bottom surface of the housing 1, and the lower end of the rotating shaft 5 is housed within the lower bearing 6. In practical applications, after rotating the knob 2, the rotating shaft 5 and the rotor 4 rotate together with the knob 2, thereby connecting different terminals of the circuit board 3 and enabling different signal inputs from the knob. By providing a lower bearing 6 on the inner bottom surface of the housing 1 and placing the lower end of the rotating shaft 5 within the lower bearing 6, the stability of the knob 2 and the rotating shaft 5 is improved, preventing the knob 2, rotating shaft 5, and rotor 4 from swaying under high-frequency vibration, which could lead to signal instability.

[0019] like Figure 2-6 As shown, an upper bearing 7 is provided inside the housing 1 on the upper side of the circuit board 3, and the rotating shaft 5 is installed inside the upper bearing 7; there are two upper bearings 7 inside the housing 1. The upper bearing 7 can improve the smoothness of the rotation of the knob 2 and the rotating shaft 5, and further improve the stability of the knob 2 and the rotating shaft 5, preventing the rotor 4 from producing a small displacement under vibration, which would cause the output signal to be unstable.

[0020] like Figure 2-6 As shown, the rotor 4 has a rotor boss 41 on its upper side that presses against the upper bearing 7. The circuit board 3 has a circuit board through hole 31 through which the rotor boss 41 passes. The rotor 4 has a rotor through hole 42 through which the rotating shaft 5 rotates. The lower end of the rotating shaft 5 has a slot 51. The slot 51 has a retaining spring 8 for locking the rotor 4, so that the knob 2, the rotating shaft 5 and the rotor 4 form a whole, and the rotating shaft 5 and the rotor 4 rotate synchronously with the knob 2.

[0021] like Figure 2-6 As shown, a rotor through hole positioning part 43 is provided in the rotor through hole 42, and a rotor shaft positioning part 52 is provided on the rotating shaft 5 to cooperate with the rotor through hole positioning part 43, so that the rotating shaft 5 and the rotor 4 are positioned to each other, and the rotor 4 rotates synchronously with the rotating shaft 5.

[0022] like Figure 1-6 As shown, the housing 1 includes an upper housing 11 and a lower housing 12. The upper and lower sides of the upper housing 11 are respectively provided with an upper mounting cavity 111 and an upper housing lower mounting cavity 112. Two upper bearings 7 are respectively disposed in the upper mounting cavity 111, the circuit board 3 is disposed in the upper housing lower mounting cavity 112, and the lower bearing 6 is disposed in the lower housing 12, which facilitates quick assembly. The upper mounting cavity 111 is provided with an upper step 113 and a lower step 114 at the opening positions on the upper and lower sides, respectively. One upper bearing 7 is disposed on the upper step 113, and the other upper bearing 7 is disposed on the lower step 114, so that the two upper bearings 7 are respectively positioned and installed on the upper housing 11. The lower mounting cavity 112 is provided with a lower mounting cavity step 115 at the opening position. The circuit board 3 is disposed on the lower mounting cavity step 115, so that the circuit board 3 is positioned and installed on the lower housing 12.

[0023] like Figure 2-6 As shown, the upper side of the rotor 4 is provided with conductive springs 9 at both ends that are in contact with the circuit board 3, so that the conductive springs 9 rotate with the rotor 4 and the two ends of the conductive springs 9 are in contact with different terminals of the circuit board 3, so that the different terminals of the circuit board 3 are connected and different signals of the knob are input; the upper side of the rotor 4 is provided with positioning posts 44, and the conductive springs 9 are installed on the positioning posts 44, so that the conductive springs 9 are quickly positioned and installed on the rotor 4.

[0024] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A vibration-resistant angle sensor structure, characterized by: It includes a housing (1) and a knob (2). Inside the housing (1), a circuit board (3) and a rotor (4) are arranged from top to bottom. The different terminals of the circuit board (3) are connected by rotation. The lower end of the knob (2) is connected to a rotating shaft (5) that passes through the circuit board (3) and the rotor (4) and is connected to the rotor (4). A lower bearing (6) is provided on the bottom surface of the inner side of the housing (1). The lower end of the rotating shaft (5) is located in the lower bearing (6).

2. A vibration resistant angle sensor structure according to claim 1, characterized in that: An upper bearing (7) is provided inside the housing (1) on the upper side of the circuit board (3), and a rotating shaft (5) is located inside the upper bearing (7).

3. A vibration resistant angle sensor structure according to claim 2, characterized in that: The housing (1) contains two upper bearings (7).

4. A vibration-resistant angle sensor structure according to claim 2 or 3, characterized in that: The rotor (4) has a rotor boss (41) on the upper side that presses against the upper bearing (7). The circuit board (3) has a circuit board through hole (31) through which the rotor boss (41) passes. The rotor (4) has a rotor through hole (42) through which the rotating shaft (5) rotates. The lower end of the rotating shaft (5) has a slot (51). The slot (51) contains a retaining ring (8) for locking the rotor (4).

5. A vibration resistant angle sensor structure according to claim 4, characterized in that: The rotor through hole (42) is provided with a rotor through hole positioning part (43), and the rotating shaft (5) is provided with a rotating shaft positioning part (52) that cooperates with the rotor through hole positioning part (43).

6. A vibration resistant angle sensor structure according to claim 4, characterized in that: The housing (1) includes an upper housing (11) and a lower housing (12). The upper side and lower side of the upper housing (11) are respectively provided with an upper mounting cavity (111) and an upper mounting cavity (112). Two upper bearings (7) are respectively disposed in the upper mounting cavity (111) of the upper housing, a circuit board (3) is disposed in the lower mounting cavity (112) of the upper housing, and a lower bearing (6) is disposed in the lower housing (12).

7. A vibration resistant angle sensor structure according to claim 6, characterized in that: The upper mounting cavity (111) of the upper housing is provided with an upper side step (113) and a lower side step (114) at the opening positions on the upper and lower sides respectively. One upper bearing (7) is provided on the upper side step (113) of the upper mounting cavity, and the other upper bearing (7) is provided on the lower side step (114) of the upper mounting cavity.

8. A vibration resistant angle sensor structure according to claim 6, characterized in that: The lower mounting cavity (112) of the upper housing is located at the opening position and has a lower mounting cavity step (115), and the circuit board (3) is set on the lower mounting cavity step (115).

9. The anti-vibration angular sensor structure of claim 1, wherein: The upper side of the rotor (4) is provided with conductive springs (9) that are in contact with the circuit board (3) at both ends.

10. A vibration resistant angle sensor structure according to claim 9, characterized in that: The upper side of the rotor (4) is provided with a positioning post (44), and the conductive spring (9) is installed on the positioning post (44).

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