Circuit board capable of preventing inclined plugging
By setting limit blocks on the circuit board of the LCD screen, the FPC plug-in and unplugging direction is restricted to vertical, which solves the problems of interface mismatch and equipment damage caused by the FPC plug-in and unplugging tilt, and improves the stability and competitiveness of the product.
Patent Information
- Application Number
- CN202421790367.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-26
AI Technical Summary
During the use and testing of LCD screens, the plug-in and unplugging of FPC and connectors are prone to tilt, resulting in mismatch and short circuit of interface lines, damage to the display screen and connectors, and reducing product competitiveness.
A circuit board that prevents tilt plugging and unplugging is designed, including a circuit board body, a connector and a limit block. The limit block is arranged on both sides below the connector connection, and its height is higher than the connection height of the connector, limiting the plugging and unplugging direction of the FPC to be vertical.
Through the design of the limit block, we ensure that the FPC can only be plugged in the vertical direction when plugging in and unplugged, avoid tilted plugging and unplugging, prevent mismatched interface lines and equipment damage, and improve product competitiveness.
Smart Images
Figure CN222967144U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit boards, and more specifically, to a circuit board for preventing inclined plugging and unplugging. Background Art
[0002] At present, in the liquid crystal display industry, the interfaces between many liquid crystal displays and the main boards of the whole machines are connected to FPCs through connectors. During operation, use, and testing, the connectors need to be plugged and unplugged multiple times through the FPC. If the FPC is inclined during the plugging and unplugging process with the connector, it is easy for different interface circuits to be misconnected and cause a short circuit, resulting in the display module of the display screen being unable to display normally, and even damaging the liquid crystal display screen. At the same time, the pins inside the connector are very fragile, and the inclined plugging and unplugging of the FPC are also likely to damage the pins of the connector, thus damaging the connector and reducing the competitiveness of the product. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is how to avoid inclined plugging and unplugging of the connector, avoid damaging the connector or the liquid crystal display screen, and improve the competitiveness of the product.
[0004] The technical problem to be solved by the utility model is realized through the following technical solutions:
[0005] To solve the above technical problem, the utility model provides a circuit board for preventing inclined plugging and unplugging, which is used for a liquid crystal display screen. It includes a circuit board body, a connector, and a limiting block. The connector is fixed on the circuit board body; there are two limiting blocks which are arranged in parallel. The two limiting blocks are fixed on the circuit board body and are respectively arranged on both sides below the connection part of the connector. The height of the limiting block is higher than the connection height of the connector.
[0006] As a preferred embodiment of the circuit board for preventing inclined plugging and unplugging provided by the utility model, guiding blocks are arranged at the front ends of the two limiting blocks, and the two guiding blocks are arranged in an open-mouth manner.
[0007] As a preferred embodiment of the circuit board for preventing inclined plugging and unplugging provided by the utility model, a reinforcing plate is arranged on one side of the circuit board body away from the connector.
[0008] As a preferred embodiment of the circuit board for preventing inclined plugging and unplugging provided by the utility model, the projection of the reinforcing plate on the circuit board body covers the connector and the limiting block.
[0009] As a preferred embodiment of the circuit board for preventing inclined plugging and unplugging provided by the utility model, a trace label paper and a shielding paper are arranged on the surface of the circuit board body, and the shielding paper covers the surface of the circuit board body and the trace label paper.
[0010] As a preferred embodiment of the circuit board for preventing inclined plugging and unplugging provided by the present utility model, the shielding paper comprises a shielding layer, an adhesive layer and a non-sticky layer which are sequentially stacked from top to bottom. The size and position of the non-sticky layer correspond to those of the trace label paper. The non-sticky layer covers the trace label paper, and the adhesive layer covers the surface of the circuit board body.
[0011] As a preferred embodiment of the circuit board for preventing inclined plugging and unplugging provided by the present utility model, the thickness of the non-sticky layer is 0.03 mm - 0.06 mm.
[0012] As a preferred embodiment of the circuit board for preventing inclined plugging and unplugging provided by the present utility model, the edge of the non-sticky layer extends beyond the edge of the trace label paper by 1.5 mm to 3 mm.
[0013] As a preferred embodiment of the circuit board for preventing inclined plugging and unplugging provided by the present utility model, the appearance colors of the non-sticky layer and the shielding layer are different.
[0014] As a preferred embodiment of the circuit board for preventing inclined plugging and unplugging provided by the present utility model, the color of the non-sticky layer is white, and the color of the shielding layer is black.
[0015] The present utility model has the following beneficial effects:
[0016] Since two limiting blocks are arranged on both sides below the connector connection, and the height of the limiting blocks is higher than the connection height of the connector, when the FPC is connected to the circuit board body, it can only be plugged and unplugged in the vertical direction of the space restricted by the limiting blocks, avoiding the inclined plugging and unplugging of the FPC from causing the wrong connection of the interface circuit, avoiding damage to the connector or the liquid crystal display screen, and improving the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the solutions in the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0018] Figure 1 It is a schematic structural diagram of a circuit board for preventing inclined plugging and unplugging provided by the present utility model.
[0019] Figure 2 For Figure 1 The top view of
[0020] Figure 3 For Figure 2Schematic diagram of the structure after hiding the FPC.
[0021] Figure 4 is Figure 3 schematic diagram of the improved structure.
[0022] Figure 5 is Figure 3 schematic diagram of another improved structure.
[0023] Figure 6 is Figure 5 schematic diagram of the shielding paper in
[0024] Figure 7 Schematic diagram of the laminated structure of the shielding paper.
[0025] Explanation of the reference numerals in the attached drawings:
[0026] Circuit board body 1; Connector 2; Limit block 3; FPC 100;
[0027] Guide block 4; Reinforcing plate 5; Trace label paper 6; Shielding paper 7; Shielding layer 71; Adhesive layer 72; Non-adhesive layer 73. Detailed implementation manners
[0028] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.
[0030] In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0031] The present utility model provides a circuit board for preventing inclined plugging and unplugging, which is used for a liquid crystal display screen. It includes a circuit board body, a connector, and a limiting block. The connector is fixed on the circuit board body; there are two limiting blocks which are arranged in parallel. The two limiting blocks are fixed on the circuit board body and are respectively arranged on both sides below the connection part of the connector. The height of the limiting block is higher than the connection height of the connector.
[0032] Since there are two limiting blocks arranged on both sides below the connection part of the connector, and the height of the limiting block is higher than the connection height of the connector, when the FPC is connected to the circuit board body, it can only be plugged and unplugged in the vertical direction of the space restricted by the limiting block, avoiding the inclined plugging and unplugging of the FPC from causing misconnection of the interface circuit, avoiding damage to the connector or the liquid crystal display screen, and improving the competitiveness of the product.
[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.
[0034] Please refer to Figures 1 to 3 , a circuit board for preventing inclined plugging and unplugging provided by the present utility model, which is used for a liquid crystal display screen. It includes a circuit board body 1, a connector 2, and a limiting block 3. The connector 2 is fixed on the circuit board body 1; there are two limiting blocks 3 which are arranged in parallel. The two limiting blocks 3 are fixed on the circuit board body 1 and are respectively arranged on both sides below the connection part of the connector 2. The height of the limiting block 3 is higher than the connection height of the connector 2. Since there are two limiting blocks 3 arranged on both sides below the connection part of the connector 2, and the height of the limiting block 3 is higher than the connection height of the connector 2, when the FPC100 is connected to the circuit board body 1, it can only be plugged and unplugged in the vertical direction of the space restricted by the limiting block 3, avoiding the inclined plugging and unplugging of the FPC100 from causing misconnection of the interface circuit, avoiding damage to the connector 2 or the liquid crystal display screen, and improving the competitiveness of the product.
[0035] Please refer to Figures 1 to 4 , further, guiding blocks 4 are arranged at the front ends of both limiting blocks 3, and the two guiding blocks 4 are arranged in an open manner, that is, the two guiding blocks 4 are inclined outward, so that the FPC 100 is easy to align during insertion, and collision with the limiting blocks 3 is avoided to damage the pins.
[0036] Further, a reinforcing plate 5 is arranged on the side of the circuit board body 1 away from the connector 2, and the projection of the reinforcing plate 5 on the circuit board body 1 covers the connector 2 and the limiting blocks 3, so as to improve the strength of the circuit board body 1 at the connector 2 and the limiting blocks 3, reduce the insertion and extraction difficulty of the FPC 100, and improve the insertion and extraction efficiency.
[0037] Please refer to Figures 5 to 7 , as a further optimized solution of Embodiment 1, in this embodiment, a trace label paper 6 and a shielding paper 7 are arranged on the surface of the circuit board body 1. The trace label paper 6 is pasted on the surface of the circuit board body 1, and the shielding paper 7 covers the surface of the circuit board body 1 and the trace label paper 6. The shielding paper 7 includes a shielding layer 71, an adhesive layer 72, and a non-adhesive layer 73 that are sequentially stacked from top to bottom. The size and position of the non-adhesive layer 73 correspond to the size and position of the trace label paper 6, and the non-adhesive layer 73 covers the trace label paper 6, and the adhesive layer 72 covers the surface of the circuit board body 1. Since the non-adhesive layer 73 is arranged at the lowermost layer of the shielding paper 7, and the non-adhesive layer 73 covers the trace label paper 6, while the adhesive layer 72 covers other areas on the surface of the circuit board body 1, that is, by adding a non-adhesive non-adhesive layer 73 in the corresponding area of the trace label paper 6, the adhesiveness of the shielding paper 7 is isolated from the trace label paper 6, and the problem that the trace code on the trace label paper 6 is likely to peel off due to the adhesiveness of the shielding paper 7 during rework can be avoided, and the traceability of product accessories can be improved.
[0038] Further, the thickness of the non-adhesive layer 73 is 0.03 mm - 0.06 mm. The edge of the non-adhesive layer 73 extends 1.5 mm to 3 mm beyond the edge of the trace label paper 6 to ensure that the non-adhesive layer 73 can still completely cover the trace label paper 6 in case of a pasting deviation. In addition, the appearance colors of the non-adhesive layer 73 and the shielding layer 71 are different, so that it is easy to visually distinguish whether the non-adhesive layer 73 is missed during pasting, and the consistency of the product is ensured. More preferably, the color of the non-adhesive layer 73 is white, and the color of the shielding layer 71 is black. Using white and black can better distinguish the non-adhesive layer 73 and the shielding layer 71.
[0039] In the present utility model, unless otherwise clearly specified or limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0040] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure made by using the content of the specification and drawings of the present application, directly or indirectly applied in other related technical fields, is similarly within the scope of the patent protection of the present application.
Claims
1. A circuit board that prevents tilted plugging and unplugging, which is used for a liquid crystal display screen, characterized in that: It includes: Circuit board body; A connector, which is fixed on the circuit board body; There are two limit blocks which are arranged in parallel. The two limit blocks are fixed on the circuit board body and are respectively arranged on both sides below the connection of the connector. The height of the limit blocks is higher than the connection height of the connector.
2. The circuit board for preventing tilted plugging and unplugging according to claim 1, characterized in that: A guide block is arranged at the front end of the two limit blocks, and the two guide blocks are arranged in an open manner.
3. The circuit board for preventing tilted plugging and unplugging according to claim 1, characterized in that: A reinforcing plate is arranged on one side of the circuit board body away from the connector.
4. The circuit board for preventing tilted plugging and unplugging according to claim 3, characterized in that: The projection of the reinforcing plate on the circuit board body covers the connector and the limiting block.
5. The circuit board for preventing tilted plugging and unplugging according to claim 1, characterized in that: A traceability label paper and shielding paper are arranged on the surface of the circuit board body, and the shielding paper covers the surface of the circuit board body and the traceability label paper.
6. The circuit board for preventing tilted plugging and unplugging according to claim 5, characterized in that: The shielding paper includes a shielding layer, a glue layer and a non-adhesive layer which are stacked in sequence from top to bottom. The size and position of the non-adhesive layer correspond to the size and position of the traceability label paper. The non-adhesive layer covers the traceability label paper, and the glue layer covers the surface of the circuit board body.
7. The circuit board for preventing tilted plugging and unplugging according to claim 6, characterized in that: The thickness of the non-adhesive layer is 0.03 mm to 0.06 mm.
8. The circuit board for preventing tilted plugging and unplugging according to claim 6, characterized in that: The edge of the non-adhesive layer exceeds the edge of the traceability label paper by 1.5 mm to 3 mm.
9. The circuit board for preventing tilted plugging and unplugging according to claim 6, characterized in that: The non-adhesive layer and the shielding layer have different appearance colors.
10. The circuit board for preventing tilted plugging and unplugging according to claim 6, characterized in that: The color of the non-adhesive layer is white, and the color of the shielding layer is black.