A fixing member suitable for a liquid crystal television PCB

Abstract

The application relates to a fixing piece suitable for a liquid crystal television PCB plate, which comprises a bottom plate and first and second elastic parts arranged on the two sides of the bottom plate, the bottom plate is used for being fixed with a shell; a first buckle is arranged on the first elastic part, a second buckle is arranged on the second elastic part, the first buckle and the second buckle are oppositely arranged, when an acting force is applied to the first and second elastic parts to drive the first and second buckles to move away from each other, the PCB plate can be placed on the bottom plate, when the acting force disappears, the first and second elastic parts restore elastic deformation to drive the first and second buckles to move close to each other until the first and second buckles abut against the PCB plate, and the application has the effect of conveniently fixing the PCB plate.

Description

Technical Field

[0001] This application relates to the field of television manufacturing, and in particular to a fastener suitable for LCD television PCB boards. Background Technology

[0002] In a television set, the PCB (Printed Circuit Board) is the core carrier that carries and connects various electronic components. Through precisely designed conductive lines, electronic components such as resistors, capacitors, and chips are soldered and fixed in an orderly manner, creating a current flow path to realize the transmission, processing, and conversion of signals (such as audio and video signals, control signals, etc.), ensuring that each functional module works together, thereby guaranteeing the stable operation of the television set's image display, sound output, and overall control functions.

[0003] During the production and assembly of television sets, PCB boards need to be fixed to designated positions on the television set's casing or body. Then, the PCB boards are connected to electronic components such as the screen via connecting cables. Therefore, during the casing production process, PCB board mounting positions need to be reserved. Correspondingly, threaded holes need to be drilled on the PCB boards, and then the PCB boards are fixed to the mounting positions with bolts.

[0004] With the advancement of television technology, televisions are becoming increasingly thinner and lighter. As a result, the utilization rate of the internal space of the casing is particularly important. However, PCB boards are usually plate-shaped. If the mounting position is curved, using bolts to fix the PCB board will cause a certain degree of deformation, which may have a potential impact on the long-term use of the television. There is room for improvement. Utility Model Content

[0005] To facilitate the fixing of PCB boards, this application provides a fixing component suitable for LCD TV PCB boards.

[0006] The fastener for LCD TV PCB boards provided in this application adopts the following technical solution: A fastener for LCD TV PCB boards includes a base plate and a first elastic portion and a second elastic portion disposed on both sides of the base plate. The base plate is used to fix the PCB board to a housing. A first latch is disposed on the first elastic portion, and a second latch is disposed on the second elastic portion. The first latch and the second latch are arranged opposite to each other. When a force is applied to the first elastic portion and the second elastic portion to drive the first latch and the second latch to move away from each other, the PCB board can be placed on the base plate. When the force is removed, the first elastic portion and the second elastic portion restore their elastic deformation to drive the first latch and the second latch to move closer to each other until the first latch and the second latch abut against the PCB board.

[0007] By adopting the above technical solution, during the assembly process, the base plate is first fixed to the housing. External force is used to drive the first and second elastic parts to undergo elastic deformation. At this time, the first and second latches move away from each other, thereby making the first and second latches in an expanded state, so as to facilitate the placement of the PCB board on the base plate. Then, the external force applied to the first and second elastic parts is removed, and the first and second elastic parts will restore their elastic deformation. Through the cooperation of the first and second latches, the purpose of clamping the PCB board on the base plate is achieved. The operation is simple. When the PCB is fixed to the housing with a curved surface by the fasteners, the PCB board can still maintain its initial shape, which plays a positive guiding role in improving the convenience of fixing the PCB board to the housing.

[0008] Preferably, the first elastic part includes a first elastic arm and a second elastic arm, the first buckle is located between the first elastic arm and the second elastic arm, and the ends of the first elastic arm and the second elastic arm away from the connection with the first buckle are respectively connected to the base plate.

[0009] By adopting the above technical solution, the first buckle is located between the first elastic arm and the second elastic arm. The cooperation between the first elastic arm and the second elastic arm helps to improve the stability of the first buckle, so that when the external force received by the first buckle and the second buckle disappears, the first buckle can quickly move towards the second buckle. At the same time, it also helps to reduce the force required to be applied to the first elastic arm and the second elastic arm when the first buckle needs to move away from the second buckle.

[0010] Preferably, there is an included angle α between the first elastic arm and the second elastic arm, 130°≤α≤145°. When the first elastic arm and the second elastic arm undergo elastic deformation, the included angle α increases.

[0011] By adopting the above technical solution, in the initial state, 130°≤α≤145°, when the first elastic arm and the second elastic arm undergo elastic deformation, the included angle α increases. From the force analysis of physics, it can be seen that as the initial angle α increases, the force exerted by the first buckle on the PCB board will gradually decrease, and the force driving the first elastic arm and the second elastic part to undergo elastic deformation will also decrease. Therefore, it is beneficial to reduce the probability of the PCB board deforming due to excessive force exerted by the first buckle on the PCB board, and at the same time, it can also reduce the force required to drive the first elastic arm and the second elastic arm to undergo elastic deformation.

[0012] Preferably, the first elastic arm and the second elastic arm are provided with reinforcing ribs at the connection points with the first buckle.

[0013] By adopting the above technical solution, the reinforcing ribs help to improve the overall rigidity of the first buckle and reduce the probability of the first buckle breaking at the connection between the first elastic arm and the second elastic arm when the first elastic arm and the second elastic arm undergo elastic deformation due to insufficient rigidity of the first buckle.

[0014] Preferably, the width of the base plate is smaller than the width of the PCB board.

[0015] By adopting the above technical solution, it can be adapted to PCBs of different widths, with high overall adaptability. It does not require the manufacture of fixing parts for PCBs of different sizes. When the PCB is placed on the base plate, the edge part is suspended, which facilitates the connection between the circuits under the PCB and other components inside the housing, thus improving space utilization.

[0016] Preferably, the base plate has a positioning groove for positioning and engaging with the housing.

[0017] By adopting the above technical solution, the positioning groove cooperates with the protrusion or limiting structure of the housing to achieve rapid positioning during the installation of the fastener, avoid displacement, and improve assembly efficiency.

[0018] Preferably, an adhesive layer is provided at the end of the base plate opposite to the end that abuts against the PCB board, and the adhesive layer is used to bond and cooperate with the housing.

[0019] By adopting the above technical solution, the adhesive layer provides fixing force, allowing the fastener to be quickly pasted to any position on the housing, which is especially suitable for curved or irregular surfaces and enhances installation flexibility.

[0020] Preferably, a magnetic fastener is provided between the base plate and the adhesive layer, and the magnetic fastener is magnetically attached to the housing.

[0021] By adopting the above technical solution, the magnetic fastener and the adhesive layer form a double fixation. Even if the adhesive layer fails, the position of the fastener can still be maintained by magnetic force, which improves the reliability of the overall connection and facilitates disassembly and maintenance.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The PCB board is fixed by the clamping force of the elastic buckle, avoiding the mechanical damage and deformation risk to the PCB board caused by traditional bolt fixing; 2. The width of the base plate is smaller than the width of the PCB board, which allows it to adapt to PCB boards of different widths, resulting in high overall adaptability; 3. The adhesive layer provides a holding force, allowing the fasteners to be quickly attached to any position on the housing, especially suitable for curved or irregular surfaces, enhancing installation flexibility. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the overall structure of a fastener suitable for LCD TV PCB boards according to an embodiment of this application.

[0024] Figure 2 yes Figure 1 A schematic diagram of the overall structure of a type of fastener suitable for LCD TV PCB boards from another perspective.

[0025] Figure 3 This is a schematic diagram of the overall structure of another embodiment of a fastener suitable for LCD TV PCB boards according to the present application.

[0026] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. First elastic part; 21. First elastic arm; 22. Second elastic arm; 3. Second elastic part; 31. Third elastic arm; 32. Fourth elastic arm; 4. First buckle; 5. Second buckle; 6. Reinforcing rib; 7. Positioning groove; 8. Adhesive layer; 9. Magnetic fastener. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] This application discloses a fastener suitable for LCD TV PCB boards. (Refer to...) Figure 1 and Figure 2 A fastener for LCD TV PCB boards includes a base plate 1 and a first elastic part 2 and a second elastic part 3 disposed on both sides of the base plate 1. The base plate 1 is used to fix the casing. A first buckle 4 is disposed on the first elastic part 2, and a second buckle 5 is disposed on the second elastic part 3. The first buckle 4 and the second buckle 5 are arranged opposite to each other. When a force is applied to the first elastic part 2 and the second elastic part 3 to drive the first buckle 4 and the second buckle 5 to move away from each other, the PCB board can be placed on the base plate 1. When the force is removed, the first elastic part 2 and the second elastic part 3 restore their elastic deformation to drive the first buckle 4 and the second buckle 5 to move closer to each other until the first buckle 4 and the second buckle 5 abut against the PCB board.

[0029] Specifically, in this embodiment, the first elastic part 2, the second elastic part 3, the first buckle 4, the second buckle 5, and the base plate 1 are integrally injection molded to form a fastener. The entire assembly is injection molded from PP material (polypropylene), resulting in high production efficiency. Furthermore, the excellent bending fatigue resistance of PP material is utilized, enabling it to undergo elastic deformation, thus satisfying the requirement that the first elastic part 2 and the second elastic part 3 must undergo recoverable elastic deformation.

[0030] Furthermore, in both embodiments, the components of the first elastic part 2 and the second elastic part 3, as well as their connection method with the base plate 1, are the same. The difference lies in that the first elastic part 2 and the second elastic part 3 are symmetrically arranged on both sides of the base plate 1 about the centerline in the width direction of the base plate 1. For ease of understanding and explanation, the following description focuses on the cooperation relationship between the first elastic part 2, the first buckle 4, and the base plate 1.

[0031] Reference Figure 1 and Figure 2 The first elastic part 2 includes a first elastic arm 21 and a second elastic arm 22. The first buckle 4 is located between the first elastic arm 21 and the second elastic arm 22. The ends of the first elastic arm 21 and the second elastic arm 22 that are away from the connection with the first buckle 4 are respectively connected to the base plate 1.

[0032] It should be noted that the second elastic part 3 includes a third elastic arm 31 and a fourth elastic arm 32. The connection method between the third elastic arm 31 and the fourth elastic arm 32 and the base plate 1 is the same as the connection method between the first elastic arm 21 and the second elastic arm 22 and the base plate 1.

[0033] Specifically, the first elastic arm 21 and the second elastic arm 22 are respectively formed by extending from the two end side walls of the base plate 1 along the length direction to the edge of the base plate 1, and the first elastic arm 21 and the second elastic arm 22 are symmetrically arranged along the center line of the length direction of the base plate 1. The first buckle 4 is located at the connection between the first elastic arm 21 and the second elastic arm 22.

[0034] Furthermore, there is an included angle α between the first elastic arm 21 and the second elastic arm 22, where 130°≤α≤145°. When the first elastic arm 21 and the second elastic arm 22 undergo elastic deformation, the included angle α increases. In the initial state, 130°≤α≤145°. After the first elastic arm 21 and the second elastic arm 22 undergo elastic deformation, the included angle α increases. From the force analysis of physics, it can be seen that as the initial angle α increases, the force exerted by the first latch 4 on the PCB board will gradually decrease. At the same time, the force that drives the first elastic arm 21 and the second elastic part 3 to undergo elastic deformation also decreases. Therefore, it is beneficial to reduce the probability of the PCB board deforming due to excessive force exerted by the first latch 4 on the PCB board. It can also reduce the force required to drive the first elastic arm 21 and the second elastic arm 22 to undergo elastic deformation.

[0035] Correspondingly, a reinforcing rib 6 is provided at the connection between the first elastic arm 21 and the second elastic arm 22 and the first buckle 4. The reinforcing rib 6 is integrally formed with the first elastic arm 21, the second elastic arm 22 and the first buckle 4. The reinforcing rib 6 helps to improve the overall rigidity of the first buckle 4 and reduces the probability of the first buckle 4 breaking along the connection between the first elastic arm 21 and the second elastic arm 22 when the first elastic arm 21 and the second elastic arm 22 undergo elastic deformation due to insufficient rigidity of the first buckle 4.

[0036] Meanwhile, the width of the base plate 1 is smaller than the width of the PCB board, which allows it to adapt to PCB boards of different widths, resulting in high overall adaptability. This eliminates the need to manufacture separate fasteners for various PCB boards of different sizes, allowing the edges of the PCB board to be suspended when placed on the base plate 1. This facilitates the connection between the circuitry below the PCB board and other components inside the housing, improving space utilization.

[0037] Reference Figure 1 and Figure 2 The base plate 1 has a positioning groove 7, which is used to position and cooperate with the housing. The positioning groove 7 cooperates with the protrusion or limiting structure of the housing to achieve quick positioning during the installation of the fastener, avoid displacement, and improve assembly efficiency.

[0038] Reference Figure 3 An adhesive layer 8 is provided on the end of the base plate 1 that is away from the PCB board. The adhesive layer 8 is used to bond with the housing. The adhesive layer 8 can be a high-viscosity double-sided adhesive (existing adhesive components are used for bonding items, which will not be described here). The adhesive layer 8 provides fixing force, so that the fastener can be quickly pasted to any position on the housing, especially suitable for curved or irregular surfaces, enhancing installation flexibility.

[0039] Meanwhile, in another embodiment, a magnetic fastener 9 is provided between the base plate 1 and the adhesive layer 8. The magnetic fastener 9 magnetically engages with the housing. In this embodiment, the magnetic fastener 9 can be a magnetic sheet, and the housing is provided with a magnetic material that can magnetically engage with the magnetic sheet, thereby achieving magnetic engagement with the housing. The magnetic fastener 9 and the adhesive layer 8 form a double fixation. Even if the adhesive layer 8 fails, the position of the fastener can still be maintained by magnetic force, improving the reliability of the overall connection and facilitating disassembly and maintenance.

[0040] The implementation principle of a fastener for LCD TV PCB boards in this application embodiment is as follows: During the assembly process, the base plate 1 is first fixed to the housing. An external force is used to drive the first elastic part 2 and the second elastic part 3 to undergo elastic deformation. At this time, the first latch 4 and the second latch 5 move away from each other, thereby making the first latch 4 and the second latch 5 in an expanded state, so as to place the PCB board on the base plate 1. Then, the external force applied to the first elastic part 2 and the second elastic part 3 is removed, and the first elastic part 2 and the second elastic part 3 will restore their elastic deformation. Through the cooperation of the first latch 4 and the second latch 5, the purpose of clamping the PCB board on the base plate 1 is achieved. The operation is simple. When the PCB is fixed to the housing with a curved surface by the fastener, the PCB board can still maintain its initial shape, which plays a positive guiding role in improving the convenience of fixing the PCB board to the housing.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fastener suitable for LCD TV PCB boards, characterized in that: The device includes a base plate (1) and a first elastic part (2) and a second elastic part (3) disposed on both sides of the base plate (1). The base plate (1) is used to fix the device to the housing. A first buckle (4) is disposed on the first elastic part (2), and a second buckle (5) is disposed on the second elastic part (3). The first buckle (4) and the second buckle (5) are disposed opposite to each other. When a force is applied to the first elastic part (2) and the second elastic part (3) to drive the first buckle (4) and the second buckle (5) to move away from each other, the PCB board can be placed on the base plate (1). When the force is removed, the first elastic part (2) and the second elastic part (3) restore their elastic deformation to drive the first buckle (4) and the second buckle (5) to move closer to each other until the first buckle (4) and the second buckle (5) abut against the PCB board.

2. A fastener suitable for LCD TV PCB boards according to claim 1, characterized in that: The first elastic part (2) includes a first elastic arm (21) and a second elastic arm (22). The first buckle (4) is located between the first elastic arm (21) and the second elastic arm (22). The ends of the first elastic arm (21) and the second elastic arm (22) that are away from the first buckle (4) are respectively connected to the base plate (1).

3. A fastener suitable for LCD TV PCB boards according to claim 2, characterized in that: An angle α exists between the first elastic arm (21) and the second elastic arm (22), 130°≤α≤145°. When the first elastic arm (21) and the second elastic arm (22) undergo elastic deformation, the angle α increases.

4. A fastener suitable for LCD TV PCB boards according to claim 3, characterized in that: The first elastic arm (21) and the second elastic arm (22) are provided with reinforcing ribs (6) at the connection points with the first buckle (4).

5. A fastener suitable for LCD TV PCB boards according to claim 1, characterized in that: The width of the base plate (1) is smaller than the width of the PCB board.

6. A fastener suitable for LCD TV PCB boards according to claim 1, characterized in that: The base plate (1) is provided with a positioning groove (7), which is used to position and cooperate with the housing.

7. A fastener suitable for LCD TV PCB boards according to claim 1, characterized in that: An adhesive layer (8) is provided on the end of the base plate (1) that is away from the PCB board, and the adhesive layer (8) is used to bond with the shell.

8. A fastener suitable for LCD TV PCB boards according to claim 7, characterized in that: A magnetic fastener (9) is provided between the base plate (1) and the adhesive layer (8), and the magnetic fastener (9) is magnetically attached to the housing.

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