Shielding frame, circuit board and electronic equipment, laser radar and movable platform provided with shielding frame and circuit board

Abstract

The utility model discloses a shielding frame, a circuit board, and an electronic device, a laser radar and a movable platform provided with the same, the shielding frame comprises a frame body and at least one suction point, the suction point is arranged at a corner position between at least two adjacent side edges in the frame body, and the size of the suction point is not less than a preset size. Compared with the prior art, the shielding frame provided by the utility model cancels the design that the suction point is located at the center of the shielding frame, thereby being capable of eliminating the structure of a cross-shaped connecting rib, further greatly reducing the space occupied by the suction point and the connecting rib, greatly reducing the shielding area of the whole shielding frame to a circuit board, and improving the shielding efficiency. Therefore, when the devices on the circuit board are arranged, the devices and the test points can be directly arranged in a manner that the devices and the test points are not arranged below the suction points, so that the suction points do not need to be subjected to rib shearing operation during subsequent detection and test, the whole manufacturing process is simplified, the manpower investment is reduced, and the production efficiency is improved. And the problems of collision, shielding frame deformation and the like are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic shielding devices, and in particular to a shielding frame, a circuit board, and electronic equipment, a laser radar, and a movable platform provided with the same. Background Art

[0002] To prevent electromagnetic interference and maintain the optimal working performance of electronic components, shielding frame products have been widely used on integrated circuit boards of products such as mobile phones and GPS to separate various electronic components and ensure that the electromagnetic interference to each electronic component is minimized.

[0003] In traditional shield frame designs, the suction point on the shield frame is typically positioned as close to the center of the frame as possible through a cross-connection and V-CUT design, ensuring that the center of the suction point coincides with or is close to the center of the frame. However, this design occupies a large amount of space, making it impossible to prevent the shield frame from obstructing many components and test points on the PCB. This, in turn, prevents these components from undergoing AOI (Automated Optical Inspection), ICT (In-Circuit Test), and FCT (Functional Circuit Test).

[0004] To address this issue, the current industry standard is to manually trim the cross-connecting ribs on the shield frame to meet subsequent inspection and testing requirements. However, trimming the ribs not only requires additional manpower and increases the complexity of the entire production process, but also poses a high risk of component collisions during manual trimming, leading to component loss. Losses are difficult to detect and significantly increase the risk of defective products being released. The trimmed shield frame is also prone to deformation and burring, compromising subsequent shield cover installation. Utility Model Content

[0005] The embodiments of the present invention provide a shielding frame and a circuit board to solve the problem in the prior art that a circuit board provided with a shielding frame does not meet the requirements of AOI testing, ICT testing, and FCT testing.

[0006] According to a first aspect of the present invention, a shielding frame is provided, comprising a frame body and at least one suction point, wherein the suction point is arranged at a corner position between at least two adjacent side edges in the frame body, and a size of the suction point is not less than a preset size.

[0007] The shielding frame of the present invention optimizes the location of the suction point, and sets it at the corner between two adjacent side walls of the frame body, and limits the size of the suction point so that the suction point can be large enough to provide sufficient stability during adsorption. Such a suction point can not only meet the suction area requirements of the placement machine during placement, but also the suction point is placed at the angle position of the two sides to well avoid the risk of deformation of the shielding frame during the absorption and placement process, so that the shielding frame of the present invention can avoid the shortcomings of the original design and ensure stability during the placement and welding process. Compared with the prior art, the shielding frame of the present invention cancels the design of the suction point being located in the center of the shielding frame, thereby removing the structure of the cross connecting rib, thereby greatly reducing the space occupied by the suction point and the connecting rib, and the shielding area of ​​the entire shielding frame on the circuit board is greatly reduced. When the components on the circuit board are laid out, the components and test points can be laid out directly without being placed below the suction point, so that there is no need to cut the ribs at the suction point during subsequent inspection and testing, simplifying the entire production process, reducing manpower investment, and avoiding problems such as collision and deformation of the shielding frame.

[0008] In some embodiments, the preset size is a maximum length of 4 mm and a maximum width of 4 mm, or the preset size is a circle with a diameter of 4 mm.

[0009] Therefore, by configuring in this manner, it is possible to ensure that sufficient stability is provided when the shield frame is adsorbed by the suction points.

[0010] In some embodiments, the suction point is connected to the at least two adjacent side edges of the frame body.

[0011] Therefore, by such an arrangement, the connection stability between the suction point and the frame body can be made higher, thereby improving the stability during adsorption.

[0012] In some embodiments, at least two suction points are provided, including a first suction point and a second suction point, and the second suction point is provided at a position for setting a suction point in the frame body that is farthest from the first suction point.

[0013] Therefore, by such an arrangement, when the shield frame needs to be provided with two or more suction points, the stability when the shield frame is adsorbed by the suction points can be improved.

[0014] In some embodiments, an inner folding portion is provided on the inner side of the frame body, and an escape portion is provided on the inner folding portion;

[0015] and / or,

[0016] An avoidance portion is provided on the suction point.

[0017] Therefore, through such an arrangement, the avoidance portion can further avoid the components or test points blocked by the inward folding portion or the suction point, thereby further improving the detection coverage of the shielding frame of the present invention.

[0018] According to a second aspect of the present invention, a circuit board is provided, which is provided with the shielding frame according to the first aspect. The device layout on the circuit board is configured such that no test points or devices are arranged below the suction points.

[0019] The circuit board of the present invention is equipped with the aforementioned shielding frame, eliminating the need to trim the shielding frame during AOI, ICT, and FCT testing, thereby completely avoiding component scrapping caused by collisions due to trimming. Furthermore, the present invention effectively prevents the shielding frame's suction points from obstructing components or test points by designing the device layout on the circuit board, reducing the complexity of the entire manufacturing process and improving its efficiency.

[0020] In some embodiments, an inner folding portion is provided on the inner side of the shielding frame, and an avoidance portion is provided on the inner folding portion and / or the suction point, and the avoidance portion is provided at a position where a test point and / or device is arranged on the circuit board.

[0021] Therefore, through such a design, the layout of the components on the circuit board can be designed to further avoid the shielding frame from blocking the components on the circuit board, thereby effectively improving the detection coverage.

[0022] According to a third aspect of the present invention, an electronic device is provided, wherein a circuit board of the electronic device is provided with the shielding frame of the first aspect, or the circuit board of the second aspect.

[0023] According to a fourth aspect of the present invention, a laser radar is provided, on which a circuit board is provided with the shielding frame of the first aspect, or a circuit board of the second aspect.

[0024] According to a fourth aspect of the present invention, a movable platform is provided, characterized in that it includes the electronic device described in the third aspect, or the laser radar described in the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 creative work.

[0026] Figure 1This is a schematic structural diagram of the front side of a shielding frame according to one embodiment of the present invention;

[0027] Figure 2 This is a structural schematic diagram of the back side of a shielding frame according to one embodiment of the present invention;

[0028] Figure 3 This is a schematic structural diagram of a shielding frame according to another embodiment of the present invention;

[0029] Explanation of the accompanying symbols: 1. Frame body; 2. Suction point; 21. First suction point; 22. Second suction point; 3. Inward folding portion; 4. Avoidance portion. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions 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 embodiments described are only 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 making creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0032] In the description of this application, it should be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application and simplifying the description, and does 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 cannot be understood as a limitation on this application. Features defined as "first" and "second" are used to distinguish feature names, rather than having special meanings. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "multiple" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0034] It should also be noted that, in this document, the terms "include" and "comprising" include not only those elements, but also other elements not explicitly listed, or elements inherent to such processes, methods, articles, or devices. In the absence of further limitations, elements defined by the phrase "include..." do not exclude the presence of other identical elements in the process, method, article, or device that includes the elements. The terms used in this document are generally commonly used by those skilled in the art. If there is any inconsistency with commonly used terms, the terms in this document shall prevail.

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0036] The present invention will be further described in detail below with reference to the accompanying drawings.

[0037] Figure 1 and Figure 2 The structure of the shielding frame of one embodiment of the present invention is schematically shown, which is suitable for being set on various circuit boards. Figure 1 and Figure 2As shown, the shielding frame of the present invention includes a frame body 1 and a suction point 2 arranged in the frame body 1. The frame body 1 is a frame structure for being arranged on the outer side of a circuit board, and its specific shape varies according to different circuit boards. The suction point 2 is arranged in the frame body 1, and the suction point 2 is connected to at least two adjacent sides in the frame body 1, and is located in a corner position between at least two adjacent sides. Specifically, the suction point 2 can be connected to two sides on the frame body 1, or it can be connected to more sides, so that the adsorption stability when the suction point 2 is used to adsorb the frame body 1 can be improved, and the suction point 2 can be moved away from the center position of the frame body 1, reducing the probability of the suction point 2 blocking the devices and test points on the circuit board. Only minor adjustments need to be made to the device layout on the circuit board to achieve that the suction point 2 does not completely block the devices and test points on the circuit board.

[0038] The suction point 2 is set at a corner position between at least two adjacent side edges, so that there are more connecting parts between the suction point 2 and the frame body 1, so as to improve the adsorption stability when the frame body 1 is adsorbed by the suction point 2. Specifically, the suction point 2 can be set at the corner formed by two side edges, or it can be set at two corners formed by three side edges, so that the suction point 2 is connected to the three side edges. The shape of the suction point 2 can be designed according to the actual needs. For example, the suction point 2 can be set to a conventional shape such as a square, a circle, a fan, or can be designed into various irregular shapes according to the actual needs. The present invention does not limit this. At the same time, in the present invention, the size of the suction point 2 is also limited to ensure that sufficient stability can be provided when the frame body 1 is adsorbed by the suction point 2. In this application, the size of the suction point 2 needs to be no less than the preset size. The setting of the preset size can be designed according to the relevant structure for adsorbing the suction point 2 in the actual working environment.

[0039] In some possible embodiments, the preset dimensions can be set to a maximum length of 4 mm and a maximum width of 4 mm. Therefore, in this embodiment, the dimensional requirements for the suction point 2 are that the maximum length must be no less than 4 mm and the maximum width must be no less than 4 mm. It will be understood that since the shape of the suction point 2 is not fixed, the suction point 2 only needs to meet the requirements that the maximum length and maximum width of its corresponding shape must be no less than 4 mm and no less than 4 mm. In other possible embodiments, the preset dimensions can also be set to a circle with a diameter of 4 mm. Therefore, in this embodiment, the dimensional requirements for the suction point 2 are that the shape of the suction point 2 must include a circular shape with a diameter of 4 mm. Both of the above possible embodiments can meet the stability requirements for the suction point 2 during adsorption in most working environments, thereby ensuring the stability of the entire shielding frame during adsorption. Taking a square suction point 2 as an example, the length and width of the suction point 2 only need to be no less than 4 mm to meet the requirement of no less than the preset dimensions.

[0040] For example, referring to Figure 1 and Figure 2 As shown, in Figure 1 and Figure 2 In the illustrated embodiment, the suction point 2 is located in the upper right corner of the frame 1. The frame 1 is irregularly shaped, with a C-shaped protrusion formed at the upper right corner. This allows the suction point 2 to be positioned there, connecting to all three sides of the upper right corner of the frame 1. The resulting suction point 2 is a square-like shape that meets dimensional requirements.

[0041] One of the functions of the suction point 2 is to secure the entire shield frame by adsorbing it. Therefore, in the prior art, to improve stability during the absorption of the entire shield frame, the suction point 2 is typically positioned at the center of the entire shield frame. In the aforementioned embodiment, by positioning the suction point 2 at a corner of the shield frame, the need for connecting ribs is eliminated, effectively reducing the obstruction of the suction point 2 from components and test points on the circuit board. This embodiment is suitable for shield frames with a relatively small overall size, as sufficiently large suction points 2 can stably secure the entire shield frame, effectively minimizing obstruction of components and test points on the circuit board while ensuring the stability of the shield frame. For shield frames with larger overall dimensions, a greater number of suction points 2 can be provided to improve the stability of the shield frame during absorption. It can be understood that, compared to the prior art method of positioning the suction point 2 at the center of the shield frame and connecting it to the side of the frame body 1 with connecting ribs, the present invention's placement of the suction point 2 at a corner of the frame body 1 better avoids the location of the suction point 2 in terms of the component layout of the circuit board, and also reduces the extent of obstruction of the circuit board compared to the prior art method.

[0042] Figure 3 The structure of the shielding frame of another embodiment of the present invention is schematically shown. Figure 3 As shown, the size of this shielding frame is relatively large, so the number of suction points 2 on the shielding frame is set to at least two, and the specific number of suction points 2 can be set according to the size of the shielding frame. Figure 3 As shown, taking the example of setting two suction points 2, in this embodiment, the suction points 2 on the shielding frame include a first suction point 21 and a second suction point 22. At this time, the second suction point 22 needs to be set at the position for setting the suction point 2 farthest from the first suction point 21 in the frame body 1. Figure 3 As shown, the first suction point 21 is set at Figure 3 Below the middle frame 1, the second suction point 22 can be set at Figure 3 The first suction point 21 and the second suction point 22 are arranged at the upper left or upper right of the middle frame body 1, specifically at the upper right of the frame body 1. The purpose of arranging the first suction point 21 and the second suction point 22 in this way is to enable the first suction point 21 and the second suction point 22 to be located at relative positions within the frame body 1 as much as possible, thereby ensuring the stability of the entire shield frame when being adsorbed by the first suction point 21 and the second suction point 22.

[0043] The inner side of the frame body 1 of the shielding frame is provided with an inner folding portion 3. In some prior arts, the inner folding portion 3 may also block some devices or test points on the circuit board. Therefore, in some possible implementations, an avoidance portion 4 may be provided on the inner folding portion 3 of the frame body 1 to avoid the parts on the inner folding portion 3 that may block the devices or test points on the circuit board. For example, referring to Figures 1 to 3 As shown, in Figures 1 to 3 In the two embodiments shown, a plurality of avoidance portions 4 are provided on the inner folded portion 3 on the inner side of the frame body 1, so that the inner folded portion 3 forms a concave-convex shape. In other possible embodiments, avoidance portions 4 can also be provided on the suction point 2, thereby further reducing the obstruction of the suction point 2 on the components and test points on the circuit board. For example, referring to Figure 3 As shown, in Figure 3 In the illustrated embodiment, the second suction point 22 is shaped like a square, and an avoidance portion 4 is provided on the second suction point 22 , thereby making the shape of the second suction point 22 irregular.

[0044] The shielding frame of the present invention optimizes the setting position of the suction point 2, and sets it at the corner position between two adjacent side walls in the frame body 1, and limits the size of the suction point 2 so that the suction point 2 can be large enough to provide sufficient stability during adsorption. Such a suction point 2 can not only meet the suction area requirements of the placement machine during mounting, but also place the suction point 2 at the angle position on both sides to avoid the risk of deformation of the shielding frame during the absorption and mounting process. Therefore, the shielding frame of the present invention can avoid the shortcomings of the original design and ensure stability during the mounting and welding process. Compared with the prior art, the shielding frame of the present invention eliminates the design of the suction point 2 being located in the center of the shielding frame, thereby removing the structure of the cross connecting ribs, and thus significantly reducing the space occupied by the suction point 2 and the connecting ribs. The shielding area of ​​the circuit board by the overall shielding frame is significantly reduced, and then when the devices on the circuit board are laid out, the devices and test points can be directly laid out without being arranged below the suction point 2. Therefore, there is no need to cut the ribs at the suction point 2 during subsequent inspection and testing, simplifying the entire production process, reducing manpower investment, and also preventing problems such as collisions and deformation of the shielding frame. In addition, an avoidance portion is provided on the inner folding portion and / or the suction point of the frame body, which can further form an avoidance for the devices or test points blocked by the inner folding portion or the suction point, thereby further improving the detection coverage of the shielding frame of the present invention.

[0045] The present invention also provides a circuit board, on which a shielding frame as described in any one of the above-mentioned embodiments is provided, thereby reducing the shielding of the components and test points on the circuit board by the installed shielding frame. At the same time, the device layout on the circuit board is arranged so that no test points and devices are arranged below the suction point 2, thereby making it possible for the components and test points on the circuit board to be completely unobstructed by the suction point 2 on the shielding frame. In addition, in some possible embodiments, the setting positions of the inner folding portion 3 on the shielding frame and the avoidance portion 4 provided on the suction point 2 are set according to the positions of the test points and components arranged on the circuit board, thereby further reducing the shielding of the components and test points on the circuit board by the shielding frame, so that the shielding frame does not need to be sheared during subsequent inspection and testing of the circuit board, and can completely avoid collisions that occur during shearing and deformation and burring of the shielding frame after shearing.

[0046] The present utility model also provides a laser radar, which is provided with a shielding frame described in any one of the above-mentioned embodiments, or a circuit board according to any one of the above-mentioned embodiments, so that it can directly carry out subsequent inspection and testing during the product preparation process without the need for a shearing process, which can reduce production costs while greatly improving production efficiency and product yield.

[0047] The present invention also provides an electronic device, which is provided with a shielding frame as described in any of the above embodiments, or a circuit board as described in any of the above embodiments, so that it can directly perform subsequent inspections and tests during the product manufacturing process without the need for a tendon shearing process, which can reduce production costs while significantly improving production efficiency and product yield. The electronic devices of the embodiments of the present application exist in various forms, including but not limited to: vehicle controllers, cameras, camera modules, drone remote controls, drone displays, mobile communication devices, servers, etc.

[0048] The present invention also provides a movable platform, which is provided with the electronic device of any of the above embodiments, or the laser radar of any of the above embodiments. The movable platform of the embodiment of the present application can be a drone, a car, an unmanned vehicle, a robot, etc.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application 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 application.

Claims

1. A shielding frame, characterized in that: It comprises a frame body (1) and at least one suction point (2), wherein the suction point (2) is arranged at a corner position between at least two adjacent side edges in the frame body (1), and the size of the suction point (2) is not less than a preset size.

2. The shielding frame according to claim 1, wherein: The preset dimensions are a maximum length of 4 mm and a maximum width of 4 mm. or, The preset size is a circle with a diameter of 4 mm.

3. The shielding frame according to claim 1, wherein: The suction point (2) is connected to at least two adjacent side edges of the frame body (1).

4. The shielding frame according to claim 1, wherein: At least two suction points (2) are provided, including a first suction point (21) and a second suction point (22), wherein the second suction point (22) is provided at a position for providing the suction point (2) that is farthest from the first suction point (21) within the frame body (1).

5. The shielding frame according to any one of claims 1 to 4, characterized in that: An inner folding portion (3) is provided on the inner side of the frame body (1), and an escape portion (4) is provided on the inner folding portion (3); and / or, The suction point (2) is provided with an avoidance portion (4).

6. A circuit board, characterized in that: A shielding frame according to any one of claims 1 to 5 is provided, and the device layout on the circuit board is arranged such that no test points and devices are arranged below the suction point (2).

7. The circuit board according to claim 6, wherein: An inner folding portion (3) is provided on the inner side of the shielding frame, and an avoidance portion (4) is provided on the inner folding portion (3) and / or the suction point (2). The avoidance portion (4) is provided at a position where a test point and / or a device is arranged on the circuit board.

8. An electronic device, characterized in that: The circuit board is provided with the shielding frame described in any one of claims 1 to 5, or the circuit board described in claim 6 or 7.

9. A laser radar, characterized in that: The circuit board is provided with the shielding frame described in any one of claims 1 to 5, or the circuit board described in claim 6 or 7.

10. A movable platform, characterized in that: include: An electronic device as claimed in claim 8 above, or a laser radar as claimed in claim 9 above.

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