A field light barrier for anti-interference solar sensor

Abstract

The present invention discloses an anti-interference solar sensor field light bar. The anti-interference solar sensor field light bar of the present invention comprises: a mounting base, a light-transmitting plate and mounting screws; the mounting base is provided with a plurality of mounting holes, the mounting screws are installed in the mounting holes, and the mounting screws are used to fix the mounting base; the mounting base is opened at both ends and interpenetrates with each other, the light-transmitting plate is arranged at the upper opening of the mounting base, the light-transmitting plate is coated with a light-shielding film, the light-shielding film is used to block light, and a light-transmitting hole is arranged in the light-shielding film, and the light-transmitting hole is used to transmit light to the solar sensor. The anti-interference solar sensor field light bar of the present invention reduces the influence of interference light on the performance of the solar sensor.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of solar sensors, and in particular to an anti-interference solar sensor field light barrier. Background Art

[0002] The solar sensor is a precision instrument widely used in satellites and other aircraft. Its structure mainly includes three aspects: optical head, sensor part and signal processing part. Among them, the optical probe includes an optical system and a detection device. It uses the photoelectric conversion function to determine the attitude angle information of the star relative to the sun based on the obtained solar beam. Therefore, the quality of sunlight obtained by the solar sensor has a great impact on the performance of the solar sensor. The existing optical sensors cannot avoid receiving the reflected light of stars such as the earth, which causes interference in the sunlight obtained by the solar sensor, affecting the accuracy of the attitude angle information obtained by the solar sensor. Summary of the invention

[0003] The present invention provides an anti-interference sun sensor field light barrier. To solve the above problem, a new structure is adopted. A light-transmitting plate coated with a filter film is installed on a mounting base to filter the interference light, so as to reduce the influence of the interference light on the performance of the sun sensor.

[0004] The present invention provides an anti-interference sun sensor field light barrier, comprising: a mounting base, a light-transmitting plate and mounting screws;

[0005] The mounting base is provided with a plurality of mounting holes, the mounting screws are installed in the mounting holes, and the mounting screws are used to fix the mounting base;

[0006] The upper and lower ends of the mounting base are open and interconnected, the light-transmitting plate is arranged at the upper opening of the mounting base, the light-transmitting plate is coated with a light-shielding film, the light-shielding film is used to block light, and a light-transmitting hole is provided in the light-shielding film, the light-transmitting hole is used to transmit light to the solar sensor.

[0007] By adopting this technical solution, a part of the light can be allowed to pass through the light-transmitting hole and enter the solar sensor by setting a shading film, thereby improving the anti-interference ability of the field light barrier of the anti-interference solar sensor. Compared with the existing empty window design or the design of setting a glass plate on the empty window, this technical solution can play a good protection and filtering function, and at the same time has higher accuracy.

[0008] In a feasible solution, an easy-to-open groove is also provided at the upper opening of the mounting base, and the easy-to-open groove is adjacent to the light-transmitting plate.

[0009] This technical solution is adopted to facilitate users to take and place the light-transmitting plate.

[0010] In a feasible solution, an anti-scratch chamfer is further provided at the edge of the light-transmitting plate corresponding to the easy-to-open groove.

[0011] This technical solution is adopted to prevent the light-transmitting plate from scratching fingers.

[0012] In a feasible solution, an open gap is provided between the light-transmitting plate and the easy-to-open groove.

[0013] The technical solution can provide space for users to lift up the light-transmitting plate during maintenance.

[0014] In a feasible solution, it also includes: a reinforcing patch;

[0015] A first mounting groove is provided on the side of the light-transmitting plate corresponding to the easy-to-open groove, and the reinforcing patch is attached to the first mounting groove.

[0016] This technical solution is adopted to provide a support point for the light-transmitting plate when it is tilted, so as to avoid damage to the light-transmitting plate. In a feasible solution, the reinforcing patch is made of elastic material.

[0017] This technical solution is adopted to provide a certain elastic force to prevent the light-transmitting plate from collapsing due to stress concentration at the edge.

[0018] In a feasible solution, reinforcing glue is also coated in the open gap.

[0019] This technical solution is adopted to prevent the light-transmitting plate from falling or foreign objects from falling into the open gap.

[0020] In a feasible solution, a filter film is plated inside the light-transmitting hole, and the filter film is used to transmit sunlight of a preset wavelength.

[0021] By adopting this technical solution, the light-transmitting glass in the light-transmitting hole can be protected by setting a filter film. After the coating is damaged, it can be plated again to ensure that the light transmission effect in the light-transmitting hole always meets a certain standard, reducing the difficulty and cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the description of the present invention or the prior art. 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 labor.

[0023] Figure 1 A three-dimensional diagram of the field light barrier of the anti-interference sun sensor of the present invention;

[0024] Figure 2A top view of the field light barrier of the anti-interference sun sensor of the present invention;

[0025] Figure 3 The AA cross-sectional view of the field light barrier of the anti-interference sun sensor of the present invention;

[0026] Figure 4 A three-dimensional diagram of the mounting base of the present invention;

[0027] Figure 5 FIG. 1 is a partial enlarged view of the field light barrier of the anti-interference solar sensor of the present invention. FIG.

[0028] Numbers in the figure:

[0029] 1. Mounting base; 101. Mounting hole; 102. Easy-to-open slot; 2. Light-transmitting plate; 201. Anti-scratch chamfer; 202. First mounting slot; 3. Reinforced patch; 4. Reinforced glue; 5. Shading film; 501. Light-transmitting hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0033] The applicant has found that the field of view light bar used in the current solar sensor receives all sunlight and other interference light, and the received interference light (mainly light reflected from celestial bodies such as the earth and the aircraft itself) affects the quality of sunlight used by the solar sensor to obtain attitude angle information. Therefore, the applicant has conceived of improving the structure of the solar sensor to reduce the impact of interference light on the solar sensor.

[0034] like Figures 1 to 5 As shown, Figure 1 is a stereoscopic diagram of the field light barrier of the anti-interference sun sensor in an embodiment of the present invention, Figure 2 is a top view of the field light barrier of the anti-interference sun sensor in an embodiment of the present invention, Figure 3 AA cross-sectional view of the field light barrier of the anti-interference sun sensor in an embodiment of the present invention, Figure 4 is a three-dimensional diagram of the installation base in an embodiment of the present invention, Figure 5 FIG. 1 is a partial enlarged view of the field light barrier of the anti-interference sun sensor in an embodiment of the present invention.

[0035] like Figures 1 to 3 As shown, the anti-interference sun sensor field light barrier provided by the embodiment of the present invention includes: a mounting base 1, a light-transmitting plate 2 and mounting screws.

[0036] Among them, Figure 4 As shown, the mounting base 1 is provided with a plurality of mounting holes 101 , and the mounting screws are installed in the mounting holes 101 . The mounting screws are used to fix the mounting base 1 .

[0037] The mounting base 1 has openings at both ends, which are interconnected. The light-transmitting plate 2 is arranged at the upper opening of the mounting base 1. The light-transmitting plate 2 is coated with a light-shielding film 5, which is used to block light. A light-transmitting hole 501 is provided in the light-shielding film 5, which is used to transmit light to the solar sensor.

[0038] By adopting this technical solution, by setting up the shading film 5, a part of the light can be passed through the light-transmitting hole 501 and enter the solar sensor, thereby improving the anti-interference ability of the field light bar of the anti-interference solar sensor. Compared with the existing empty window design or the design of setting a glass plate on the empty window, this technical solution can play a good protection and filtering function, and at the same time has higher precision. This is because it can eliminate the error that is difficult to avoid in the mechanical processing of the existing mounting base 1, that is, the mechanical error between the light-transmitting plate 2 and the upper end opening of the mounting base 1 is large, so that the position accuracy of the light-transmitting hole 501 is not high. The edge accuracy of the light-transmitting hole 501 is controlled in the later stage by coating, which is much easier than the precision control of mechanical processing. It should be noted that the coating process of the shading film 5 needs to be carried out after the light-transmitting plate 2 is fixed and installed.

[0039] Alternatively, if Figure 1 and Figure 5 As shown, in the anti-interference sun sensor field light bar provided by the embodiment of the present invention, the upper opening of the mounting base 1 is further provided with an easy-to-open groove 102 arranged opposite to the light-transmitting plate 2. The easy-to-open groove 102 is used to facilitate the user to insert fingers or tools to lift or lower the light-transmitting plate 2 onto the mounting base 1.

[0040] This technical solution is adopted to facilitate users to take and place the light-transmitting plate 2.

[0041] Alternatively, if Figure 5 As shown, in the anti-interference sun sensor field light barrier provided by the embodiment of the present invention, the edge of the light-transmitting plate 2 corresponding to the easy-to-open groove 102 is further provided with an anti-scratch chamfer 201 .

[0042] This technical solution is adopted to prevent the light-transmitting plate 2 from scratching fingers.

[0043] Alternatively, if Figure 5 As shown, in the anti-interference sun sensor field light bar provided by the embodiment of the present invention, an open gap is provided between the light-transmitting plate 2 and the easy-to-open groove 102. The open gap here refers to a gap provided between the easy-to-open groove 102 and the edge of the light-transmitting plate 2, and the function of the gap is to facilitate the light-transmitting plate 2 to be tilted through the open gap.

[0044] The adoption of this technical solution can provide space for the user to lift up the light-transmitting plate 2 during maintenance.

[0045] Alternatively, if Figure 5 As shown, the anti-interference sun sensor field light barrier provided by the embodiment of the present invention further includes: a reinforcing patch 3.

[0046] A first mounting groove 202 is formed on the side of the light-transmitting plate 2 corresponding to the easy-to-open groove 102 , and the reinforcing patch 3 is attached to the first mounting groove 202 .

[0047] This technical solution is adopted to provide a support point for the light-transmitting plate 2 when it is tilted, so as to avoid damage to the light-transmitting plate 2.

[0048] Optionally, in the anti-interference sun sensor field light barrier provided by the embodiment of the present invention, the reinforcing patch 3 is made of elastic material. A possible material is radiation-resistant rubber, which belongs to the prior art.

[0049] This technical solution is adopted to provide a certain elastic force to prevent the light-transmitting plate 2 from breaking due to stress concentration at the edge.

[0050] Alternatively, if Figure 5 As shown, in the anti-interference sun sensor field light barrier provided by the embodiment of the present invention, the opening gap is also coated with reinforcing glue 4.

[0051] This technical solution is adopted to prevent the light-transmitting plate 2 from falling or foreign objects from falling into the gap when the gap is opened, and at the same time it plays a fixing role.

[0052] Optionally, in the anti-interference solar sensor field light barrier provided in the embodiment of the present invention, a filter film is plated inside the light-transmitting hole 501, and the filter film is used to transmit sunlight of a preset wavelength. It should be noted that the filter film is not shown in the figure.

[0053] By adopting this technical solution, by setting a filter film, the light-transmitting glass in the light-transmitting hole 501 can be protected, and a second coating can be performed after the coating is damaged to ensure that the light transmission effect in the light-transmitting hole always reaches a certain standard. At the same time, the coating repair is cheaper than replacing the entire light-transmitting plate, and the coating process is very simple, and only the original coating needs to be cleaned.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being “on” or “under” a second feature may mean that the first feature and the second feature are in direct contact, or the first feature and the second feature are in indirect contact via an intermediate medium.

[0055] Moreover, the first feature being “above”, “above”, and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “below”, “below”, and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-interference sun sensor field light bar, characterized in that: include: Install the base, light-transmitting plate and mounting screws; The mounting base is provided with a plurality of mounting holes, the mounting screws are installed in the mounting holes, and the mounting screws are used to fix the mounting base; The upper and lower ends of the mounting base are open and interconnected, the light-transmitting plate is arranged at the upper opening of the mounting base, the light-transmitting plate is coated with a light-shielding film, the light-shielding film is used to block light, and a light-transmitting hole is provided in the light-shielding film, the light-transmitting hole is used to transmit light to the solar sensor.

2. The anti-interference sun sensor field light barrier according to claim 1, characterized in that: The upper opening of the mounting base is also provided with an easy-to-open groove which is arranged opposite to the mounting base, and the easy-to-open groove is adjacent to the light-transmitting plate.

3. The anti-interference sun sensor field light barrier according to claim 2, characterized in that: The edges of the light-transmitting plate corresponding to the easy-to-open grooves are also provided with anti-scratch chamfers.

4. The anti-interference sun sensor field light barrier according to claim 3, characterized in that: An open gap is provided between the light-transmitting plate and the easy-to-open groove.

5. The anti-interference sun sensor field light barrier according to claim 4, characterized in that: Also includes: Reinforcement patch; A first mounting groove is provided on the side of the light-transmitting plate corresponding to the easy-to-open groove, and the reinforcing patch is attached to the first mounting groove.

6. The anti-interference sun sensor field light barrier according to claim 5, characterized in that: The reinforcing patch is made of elastic material.

7. The anti-interference sun sensor field light barrier according to claim 6, characterized in that: Reinforced glue is also coated in the open gap.

8. The anti-interference sun sensor field light barrier according to claim 7, characterized in that: The light-transmitting hole is coated with a filter film, and the filter film is used to transmit sunlight of a preset wavelength.

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