Filtering structure and receiving assembly

Abstract

The utility model relates to a light filtering structure and a receiving assembly, the light filtering structure comprises a light filtering part, the light filtering part comprises a light filtering top plate and a plurality of light filtering side plates, and the plurality of light filtering side plates are sequentially arranged along the circumferential direction of the light filtering top plate and are connected with the light filtering top plate; wherein every two adjacent light filtering side plates are fixedly connected, and the light filtering side plates and the light filtering top plate are jointly enclosed to form a concave cavity. The light filtering part can be directly buckled to the circuit board, connection with the circuit board can be achieved without additional parts, the overall structure and the technological process are simplified, the production efficiency is improved, the light filtering part is connected with the circuit board, the usage amount of glue can be integrally reduced, and the cost is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and in particular to a light filtering structure and a receiving component. Background Art

[0002] Laser Radar is a radar system that emits laser beams to detect the position, speed and other characteristic quantities of a target. Its working principle is to emit a detection signal (laser beam) to the target, and then compare the received signal reflected from the target (target echo) with the transmitted signal. After appropriate processing, relevant information about the target can be obtained, such as target distance, direction, altitude, speed, attitude, and even shape parameters, so as to detect, track and identify targets such as aircraft and missiles.

[0003] The receiving system in the laser radar requires additional metal parts to fix the filter, which increases the complexity of the overall structure. A large amount of glue is required between the metal parts and the filter plate, as well as between the metal parts and the circuit board to achieve a fixed connection, which increases the cost. Utility Model Content

[0004] The present application provides a light filtering structure and a receiving component, which simplifies the overall structure and process flow, improves production efficiency, and can reduce the amount of glue used, effectively reducing costs.

[0005] In a first aspect, the present application provides a filtering structure, comprising a filtering portion, wherein the filtering portion comprises a filtering top plate and a plurality of filtering side plates, wherein the plurality of filtering side plates are sequentially arranged along the circumference of the filtering top plate and connected to the filtering top plate; wherein each adjacent two filtering side plates are fixedly connected, and the filtering side plates and the filtering top plate are jointly enclosed to construct a concave cavity.

[0006] In a possible implementation, the filter portion includes a plurality of flanges, the flanges are arranged corresponding to the filter side plates, the flanges are arranged on a side of the filter side plate away from the filter top plate, and are fixedly connected to the filter side plate.

[0007] In a possible implementation manner, the filter portion is an integrally formed structure.

[0008] In a possible implementation, the light filtering structure includes a plurality of light shielding portions, the light shielding portions are respectively arranged corresponding to the light filtering side plates, and the light shielding portions are arranged on a side of the light filtering side plate away from the concave cavity.

[0009] In a possible implementation, the light shielding portion includes an ink layer, and the ink layer covers the filter side plate.

[0010] In a second aspect, the present application provides a receiving component, comprising a circuit board, a receiver, and a filtering structure as described in the first aspect; the receiver is connected to the circuit board, and the filtering structure is arranged on the receiver through a concave cavity cover and connected to the circuit board.

[0011] In a possible implementation manner, the receiving component includes a first adhesive layer, and the filter side plate of the filter structure is connected to the circuit board through the first adhesive layer.

[0012] In a possible implementation manner, the receiving component includes a second adhesive layer, and the flange body of the filter structure is connected to the circuit board through the second adhesive layer.

[0013] In a possible implementation, the circuit board includes a board body and a plurality of electronic components, the board body has a first surface and a second surface that are arranged opposite to each other, and the electronic components are arranged on the first surface and / or the second surface.

[0014] In a possible implementation manner, the filter structure is disposed on the first surface and / or the second surface.

[0015] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0016] The filter structure and receiving assembly provided in the embodiment of the present application can be directly snapped onto the circuit board, and the connection with the circuit board can be achieved without the need for additional components, thereby simplifying the overall structure and process flow, and improving production efficiency. The connection between the filter part and the circuit board can reduce the overall glue usage and effectively reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0020] Figure 1A side view of a filter structure provided in an embodiment of the present application;

[0021] Figure 2 for Figure 1 A bottom view of the filter structure shown;

[0022] Figure 3 A schematic diagram of a receiving component provided in an embodiment of the present application;

[0023] Figure 4 A side view of a filter structure provided in an embodiment of the present application;

[0024] Figure 5 for Figure 4 A bottom view of the filter structure shown;

[0025] Figure 6 A schematic diagram of a receiving component provided in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1. filter part; 11. filter top plate; 12. filter side plate; 13. cavity; 14. flange body; 2. light shielding part; 3. circuit board; 31. board body; 311. first surface; 312. second surface; 32. electronic components; 4. receiver; 5. first adhesive layer; 6. second adhesive layer. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0030] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0031] In order to solve the technical problems of complexity of the filter structure in the related art and the need for a large amount of glue between the metal parts and the filter plate and between the metal parts and the circuit board, which increases the cost, the present application provides a filter structure, the filter part of which can be directly snapped onto the circuit board without the need for additional components to achieve connection with the circuit board, thereby simplifying the overall structure and process flow, and improving production efficiency. The connection between the filter part and the circuit board can reduce the overall glue usage and effectively reduce costs.

[0032] First embodiment

[0033] like Figure 1-Figure 3 As shown, the present application provides a filter structure, including a filter unit 1, which can filter light within a specific wavelength range to meet the detection requirements of the laser radar. The specific wavelength range is based on actual conditions and is designed according to requirements, and the present application does not limit it.

[0034] The filter unit 1 comprises a filter top plate 11 and a plurality of filter side plates 12 . The plurality of filter side plates 12 are sequentially arranged along the circumference of the filter top plate 11 and connected to the filter top plate 11 .

[0035] Among them, the filter top plate 11 is, for example, rectangular and has four sides. Four filter side plates 12 can be provided, which are arranged in sequence on the four sides of the filter top plate 11. Each filter side plate 12 is fixedly connected to the filter top plate 11, so that the connection between the filter side plate 12 and the filter top plate 11 is more reliable.

[0036] Each two adjacent filter side plates 12 are also fixedly connected, so that the filter side plates 12 and the filter top plate 11 together enclose a space with an open side and closed all around, that is, a cavity 13 is constructed to accommodate or place the receiver 4.

[0037] The filter part 1 is an integrated structure, so that the connection between the filter top plate 11 and the plurality of filter side plates 12 is more reliable. The filter part 1 can be injection molded, for example, to simplify the process flow and facilitate implementation.

[0038] In this embodiment, if Figure 1-Figure 3 As shown, the filter structure includes a plurality of shading parts 2, the number of which is consistent with the number of the filter side plates 12, so that the shading parts 2 are respectively arranged corresponding to the filter side plates 12, and the shading parts 2 are arranged on the side of the filter side plate 12 away from the cavity 13, that is, attached to the filter side plate 12, so as to absorb light of all bands around, and ensure that only the filter top plate 11 can filter light within a specific wavelength range. The shading parts 2 cover the entire filter side plate 12, which can prevent light from entering the cavity 13 from the surroundings of the filter part 1, and ensure that the normal operation of the receiver 4 is not disturbed.

[0039] Exemplarily, the light shielding portion 2 includes an ink layer, and the ink layer covers the entire filter side plate 12. The ink layer is selected so that the light shielding portion 2 has good adhesion, a long service life, is not easy to fade, has low cost, has good water resistance, light resistance, weather resistance, etc., and prolongs the service life of the light shielding portion 2.

[0040] Second embodiment

[0041] like Figure 4-Figure 6 As shown, the present application provides a filter structure, including a filter part 1, the filter part 1 includes a filter top plate 11 and a plurality of filter side plates 12, the plurality of filter side plates 12 are sequentially arranged along the circumference of the filter top plate 11, and connected to the filter top plate 11. The arrangement of the filter top plate 11 and the filter side plates 12 is the same or similar to the arrangement of the filter top plate 11 and the plurality of filter side plates 12 in the first embodiment, and will not be repeated here.

[0042] The difference in this embodiment is that the filter part 1 includes a plurality of flange bodies 14. For example, there are four flange bodies 14, and the flange bodies 14 are arranged corresponding to the filter side plate 12. The flange bodies 14 are arranged on the side of the filter side plate 12 away from the filter top plate 11, and are fixedly connected to the filter side plate 12. Among them, the flange body 14 is, for example, in the shape of a strip, and the cross-sectional size of the flange body 14 can be, for example, the same as the cross-sectional size of the filter side plate 12, or can be larger than the cross-sectional size of the filter side plate 12. When installed in the circuit board 3, the contact area can be increased to improve the connection effect.

[0043] Third embodiment

[0044] like Figure 1-Figure 3 As shown, the present application provides a receiving component, including a circuit board 3, a receiver 4 and a filter structure as in the first embodiment, to realize the detection function of the receiving component.

[0045] The receiver 4 is connected to the circuit board 3, and the filter structure is covered on the receiver 4 through the cavity 13. The filter side plate 12 of the filter structure is fixedly connected to the circuit board 3 to ensure that the filter structure can be stably installed on the circuit board 3 to avoid loosening and affecting the normal use of the receiver 4.

[0046] Exemplarily, the receiving component includes a first adhesive layer 5, and the filter side plate 12 of the filter structure can be connected to the circuit board 3 via the first adhesive layer 5. The first adhesive layer 5 is, for example, a hard glue, and the hard glue is made of materials such as polyurethane and polyurethane, which has high hardness and strength, can withstand large pressure and impact without being easily deformed, and ensures the stability of the filter structure when connected to the circuit board 3.

[0047] The receiver 4 transmits a detection signal to the target, and then compares the received signal reflected from the target with the transmitted signal. After appropriate processing, it can obtain relevant information about the target, such as target distance, direction, altitude, speed, attitude, and even shape parameters, so as to detect, track and identify targets such as aircraft and missiles.

[0048] In this embodiment, if Figure 1-Figure 3 As shown, the circuit board 3 includes a board body 31 and a plurality of electronic components 32. The board body 31 has a first surface 311 and a second surface 312 that are arranged opposite to each other. The electronic components 32 can be arranged on the first surface 311, or on the second surface 312, or on both the first surface 311 and the second surface 312 to realize the corresponding functions of the circuit board 3.

[0049] The board 31 is, for example, a printed circuit board (PCB), which has the advantages of high integration, high reliability, low production cost, and easy maintenance and upgrading. The board 31 is a support for the electronic components 32, providing line connections for the electronic components 32. By wiring and connecting the various electronic components 32 on the board 31, the circuit is made more compact, reducing the volume and weight of the electronic product. The electronic components 32 are arranged on both sides, which can improve the complexity and functionality of the circuit. The printed circuit board also has good anti-interference ability, which can effectively reduce electromagnetic interference and signal crosstalk.

[0050] In this embodiment, if Figure 1-Figure 3As shown, the filter structure can be provided on the first surface 311 or the second surface 312, and the receiver 4 is provided correspondingly to realize the single-side receiving function. Alternatively, a filter structure is provided on both the first surface 311 and the second surface 312, and a receiver 4 is placed in each filter structure, which is covered by the filter part 1, and the integrated receiving light paths in two directions realize the double-sided receiving function, and the wavelength ranges that can be filtered by the double-sided filter structure can be the same or different, so as to meet different detection requirements and realize the diversity of receiving components.

[0051] Fourth embodiment

[0052] like Figure 4-Figure 6 As shown, the present application provides a receiving component, including a circuit board 3, a receiver 4 and a filter structure as in the second embodiment, to realize the detection function of the receiving component.

[0053] The receiver 4 is connected to the circuit board 3, and the filter structure is covered on the receiver 4 through the cavity 13. The flange body 14 of the filter structure is fixedly connected to the circuit board 3 to ensure that the filter structure can be stably installed on the circuit board 3 to avoid loosening and affecting the normal use of the receiver 4.

[0054] The arrangement of the circuit board 3, the receiver 4 and the filter structure is the same as or similar to that of the circuit board 3, the receiver 4 and the filter structure in the third embodiment, and will not be repeated here.

[0055] The difference in this embodiment is that the receiving component includes a second adhesive layer 6, and the flange body 14 of the filter structure is connected to the circuit board 3 through the second adhesive layer 6. The second adhesive layer 6 can also be, for example, a hard glue, and the hard glue is made of materials such as polyurethane and polyurethane, which has high hardness and strength, can withstand greater pressure and impact without being easily deformed, and ensures the stability of the filter structure when connected to the circuit board 3.

[0056] By providing the flange 14, the contact area between the filter 1 and the circuit board 3 can be increased, and the flange 14 and the circuit board 3 are connected together by the second adhesive layer 6, so as to improve the reliability of the connection and avoid loosening. In addition, the flange 14 is more firm for assembly and pressing, which is convenient and quick, and has lower requirements on the process.

[0057] Here, it should be noted that the above-mentioned filter structure is not limited to covering the receiver 4, and can also cover the electronic components 32 in the circuit board 3 to protect important components from being damaged. The electronic components 32 can be fully covered or partially covered, depending on the actual situation. When the filter structure is installed on the circuit board 3, the strength of the circuit board 3 along its thickness direction, the durability of the circuit board 3, and the overall structural strength can also be increased.

[0058] The receiving component proposed in this application can be applied to robot obstacle-free identification, driverless cars, driverless forklifts, sweeping cleaning robots, drone reconnaissance, security monitoring, missiles, national defense, weather, etc.

[0059] The filter unit can realize positioning and identification through pattern recognition (PR). Compared with the receiving components in the related art, the receiving component in the present application reduces the overall amount of glue, simplifies the overall structure, reduces the process, and reduces the production cost.

[0060] The filter covers the receiver to protect it and prevent dust and other dirt from entering the cavity. A light shielding part is set on the circumferential side wall, and the process can be easily achieved through PR identification, improving the process effect and accuracy.

[0061] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0062] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0063] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A light filtering structure, characterized in that: The optical filter comprises a light filtering section (1), wherein the light filtering section (1) comprises a light filtering top plate (11) and a plurality of light filtering side plates (12), wherein the plurality of light filtering side plates (12) are sequentially arranged along the circumference of the light filtering top plate (11) and connected to the light filtering top plate (11); Wherein, every two adjacent light filtering side plates (12) are fixedly connected, and the light filtering side plates (12) and the light filtering top plate (11) are enclosed together to form a concave cavity (13).

2. The filter structure according to claim 1, characterized in that: The filter section (1) comprises a plurality of flange bodies (14), wherein the flange bodies (14) are arranged corresponding to the filter side plates (12), and the flange bodies (14) are arranged on a side of the filter side plates (12) away from the filter top plate (11), and are fixedly connected to the filter side plates (12).

3. The filter structure according to claim 1 or 2, characterized in that: The light filtering part (1) is an integrally formed structure.

4. The filter structure according to claim 1, characterized in that: The light filtering structure comprises a plurality of light shielding parts (2), wherein the light shielding parts (2) are respectively arranged corresponding to the light filtering side plates (12), and the light shielding parts (2) are arranged on a side of the light filtering side plates (12) away from the concave cavity (13).

5. The filter structure according to claim 4, characterized in that: The light shielding portion (2) comprises an ink layer, and the ink layer covers the light filtering side plate (12).

6. A receiving component, characterized in that: It comprises a circuit board (3), a receiver (4) and a filter structure as claimed in any one of claims 1 to 5; The receiver (4) is connected to the circuit board (3); the light filtering structure is covered on the receiver (4) through a concave cavity (13) and is connected to the circuit board (3).

7. The receiving assembly according to claim 6, characterized in that: The receiving component comprises a first adhesive layer (5), and the filter side plate (12) of the filter structure is connected to the circuit board (3) via the first adhesive layer (5).

8. The receiving assembly according to claim 6, characterized in that: The receiving component comprises a second adhesive layer (6), and the flange body (14) of the filter structure is connected to the circuit board (3) via the second adhesive layer (6).

9. The receiving assembly according to claim 6, characterized in that: The circuit board (3) comprises a board body (31) and a plurality of electronic components (32); the board body (31) has a first surface (311) and a second surface (312) arranged opposite to each other; and the electronic components (32) are arranged on the first surface (311) and / or the second surface (312).

10. The receiving assembly according to claim 9, characterized in that: The light filtering structure is arranged on the first surface (311) and / or the second surface (312).

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