Magnetic core laminated type multilayer circuit board

Abstract

The utility model provides a magnetic core laminated multilayer circuit board, which relates to the technical field of multilayer circuit boards and comprises a concave plate, fixing plates are fixedly connected to two sides of the bottom of the concave plate, and connecting devices are arranged on the inner walls of through holes arranged on the fixing plates. Firstly, an L-shaped plate is pressed, the L-shaped plate can extrude fixing blocks on the two sides of the L-shaped plate, a connecting block and a clamping block arranged on one side of the connecting block are driven by the fixing blocks to move, the clamping block moves out of the inner wall of a groove formed in a connecting plate, and therefore a concave plate and the fixing plate are disassembled; by means of the device, the probability that when the circuit board needs to be disassembled or replaced, fixing of a plurality of limiting bolts needs to be removed, and consequently much time and energy can be consumed is reduced, and the problem that in the maintenance process, the whole multi-layer structure possibly needs to be disassembled, and the maintenance complexity and time cost are increased is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-layer circuit boards, in particular to a magnetic core laminated multi-layer circuit board. Background Art

[0002] A magnetic core laminated multilayer circuit board is a special multilayer printed circuit board that integrates magnetic materials during the design and manufacturing process to achieve specific electromagnetic functions. This type of PCB is used in electronic devices to improve signal transmission efficiency, reduce electromagnetic interference, and provide better power management.

[0003] When the existing magnetic core laminated multilayer circuit board is in use, the moving block first drives the limit rod to move upward, so that the limit rod is away from the buffer pad, the first spring is stretched, and the second spring is squeezed at the same time. Then the circuit board body is placed in the inner cavity of the concave plate, so that the bottom of the circuit board body is tightly fitted with the top of the buffer pad. At this time, the reaction force of the first spring drives the moving block downward, so that the limit rod is plugged into the limit slot to limit the circuit board body. At the same time, the reaction force of the second spring drives the second spring to move downward, and the limit block drives the protective pad downward to limit the circuit board body for a second time, further improving its fixing effect. However, when the existing magnetic core laminated multilayer circuit board is in use, it will be connected to another concave plate through a fixing plate set at the bottom of the concave plate and fixed by limiting bolts. When the circuit board needs to be disassembled or replaced, it is necessary to release the fixing of multiple limiting bolts, which may consume a lot of time and effort, and the entire multilayer structure may need to be disassembled during the maintenance process, increasing the complexity and time cost of maintenance.

[0004] Therefore, it is necessary to provide a new magnetic core laminated multi-layer circuit board to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a magnetic core laminated multi-layer circuit board.

[0006] The utility model provides a magnetic core laminated multi-layer circuit board comprising a concave plate, wherein both sides of the bottom of the concave plate are fixedly connected to fixed plates, and the inner wall of the through hole opened on the fixed plate is provided with a connecting device;

[0007] The connecting device includes two elastic members, two fixing blocks and two snap-fit ​​assemblies, one end of the two elastic members is fixedly connected to the inner wall of the fixing plate, and the ends of the two elastic members away from the fixing plate are fixedly connected to the L-shaped plate, the two fixing blocks are slidably connected to the two ends of the L-shaped plate, and the ends of the two fixing blocks away from the L-shaped plate are respectively fixedly connected to two connecting blocks, and the two snap-fit ​​assemblies are respectively fixedly connected to one end of the two connecting blocks.

[0008] Preferably, the engaging assembly includes a plurality of compression springs, one end of each of the compression springs is fixedly connected to the inner wall of the fixing plate, and one end of each of the compression springs away from the fixing plate is fixedly connected to a clamping block.

[0009] Preferably, the elastic member is a tension spring, one end of the tension spring is fixedly connected to the inner wall of the fixed plate, and one end of the two tension springs away from the fixed plate is fixedly connected to one end of the L-shaped plate.

[0010] Preferably, a connecting plate is fixedly connected to the top of the concave plate, and grooves matching the clamping blocks are formed at both ends of the connecting plate.

[0011] Preferably, a buffer pad is provided on the inner wall of the concave plate, a circuit board body is provided on the top of the buffer pad, and the buffer pad is made of shock-absorbing rubber material.

[0012] Preferably, cooling fans are embedded on both the left and right sides of the bottom of the concave plate.

[0013] Compared with related technologies, the magnetic core laminated multi-layer circuit board provided by the present invention has the following beneficial effects:

[0014] The L-shaped plate is pressed against the fixing blocks on both sides of the plate, and the fixing blocks drive the connecting block and the clamping block provided on one side of the connecting block to move, so that the clamping block moves out from the inner wall of the groove opened in the connecting plate, thereby disassembling the concave plate and the fixing plate. This device reduces the probability of needing to release the fixing of multiple limit bolts when the circuit board needs to be disassembled or replaced, which may consume more time and energy, and solves the probability that the entire multi-layer structure may need to be disassembled during the maintenance process, which increases the complexity and time cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a magnetic core laminated multi-layer circuit board provided by the utility model;

[0016] Figure 2 for Figure 1 A structural diagram from another perspective is shown;

[0017] Figure 3 for Figure 1 The schematic diagram of the cutaway structure shown;

[0018] Figure 4 for Figure 3 Schematic diagram of the structure of the connecting device shown.

[0019] Numbers in the figure: 1, concave plate; 2, fixed plate; 3, fixed block; 4, L-shaped plate; 5, connecting block; 6, compression spring; 7, clamping block; 8, tension spring; 9, connecting plate; 10, buffer pad; 11, circuit board body. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0021] Please refer to Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 ,in, Figure 1 This is a structural diagram of a magnetic core laminated multi-layer circuit board provided by the utility model; Figure 2 for Figure 1 A structural diagram from another perspective is shown; Figure 3 for Figure 1 The schematic diagram of the cutaway structure shown; Figure 4 for Figure 3 Schematic diagram of the structure of the connecting device shown.

[0022] In the specific implementation process, Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4As shown, cooling fans are embedded on both sides of the bottom of the concave plate 1. The cooling fans can dissipate heat for the circuit board body 11 set inside the concave plate 1 to avoid the temperature of the circuit board body 11 being too high, which will affect the performance and life of the circuit board body 11. A connecting plate 9 is fixedly connected to the top of the concave plate 1. Grooves matching the card block 7 are provided at both ends of the connecting plate 9. A buffer pad 10 is provided on the inner wall of the concave plate 1. The circuit board body 11 is provided on the top of the buffer pad 10, and the buffer pad 10 is made of shock-absorbing rubber material. Shock-absorbing rubber material is a material widely used in industry and daily life. It uses the unique viscoelasticity of rubber to achieve amplitude reduction. The effect of low vibration is achieved, thereby playing the role of shock absorption, vibration isolation, noise reduction, etc. The buffer pad 10 is arranged at the bottom of the circuit board body 11 to relieve stress. When the circuit board is installed or fixed in the mechanical equipment, it may be subjected to external forces from all directions, such as vibration, impact, etc. If these forces are not relieved, they may cause damage to the circuit board, such as breakage, damage or failure. At the same time, it can also provide stable support. During the installation process of the circuit board, the installation surface may be uneven, or the circuit board needs to be placed on other components. At this time, the buffer pad can fill the gap between the uneven surfaces, provide stable support for the circuit board, and ensure the circuit board The installation is firm, and both sides of the bottom of the concave plate 1 are fixedly connected to the fixing plate 2. The inner wall of the through hole opened on the fixing plate 2 is provided with a connecting device, and the connecting device includes two elastic members, two fixing blocks 3 and two clamping components. One end of the two elastic members is fixedly connected to the inner wall of the fixing plate 2, and the end of the two elastic members away from the fixing plate 2 is fixedly connected to the L-shaped plate 4. The elastic member is a tension spring 8, and one end of the tension spring 8 is fixedly connected to the inner wall of the fixing plate 2, and the end of the two tension springs 8 away from the fixing plate 2 is fixedly connected to one end of the L-shaped plate 4. The two fixing blocks 3 are slidably connected to both ends of the L-shaped plate 4, and the ends of the two fixing blocks 3 away from the L-shaped plate 4 are respectively fixedly connected There are two connecting blocks 5, and two snap-fitting components are respectively fixedly connected to one end of the two connecting blocks 5. The snap-fitting components include a number of compression springs 6, one end of the several compression springs 6 is fixedly connected to the inner wall of the fixed plate 2, and the ends of the several compression springs 6 away from the fixed plate 2 are fixedly connected to the clamping blocks 7. When it is necessary to disassemble the concave plate 1 and the fixed plate 2, first press the L-shaped plate 4, the L-shaped plate 4 will squeeze the fixed blocks 3 on both sides of itself, and drive the connecting block 5 and the clamping block 7 arranged on one side of the connecting block 5 to move through the fixed block 3, so that the clamping block 7 moves out from the inner wall of the groove opened on the connecting plate 9, thereby disassembling the concave plate 1 and the fixed plate 2.

[0023] The working principle of the present invention is as follows: when in use, when the concave plate 1 and the fixed plate 2 need to be disassembled, first press the L-shaped plate 4, the L-shaped plate 4 will squeeze the fixed blocks 3 on both sides of itself, and drive the connecting block 5 and the clamping block 7 arranged on one side of the connecting block 5 to move through the fixed block 3, so that the clamping block 7 moves out from the inner wall of the groove opened on the connecting plate 9, thereby disassembling the concave plate 1 and the fixed plate 2.

[0024] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of this utility model, 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 communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A magnetic core laminated multilayer circuit board, comprising a concave plate (1), characterized in that: Both sides of the bottom of the concave plate (1) are fixedly connected to fixed plates (2), and the inner wall of the through hole opened on the fixed plate (2) is provided with a connecting device; The connecting device comprises two elastic members, two fixed blocks (3) and two snap-fit ​​assemblies, one end of the two elastic members is fixedly connected to the inner wall of the fixed plate (2), and one end of the two elastic members away from the fixed plate (2) is fixedly connected to the L-shaped plate (4), the two fixed blocks (3) are slidably connected to both ends of the L-shaped plate (4), and one end of the two fixed blocks (3) away from the L-shaped plate (4) is respectively fixedly connected to two connecting blocks (5), and the two snap-fit ​​assemblies are respectively fixedly connected to one end of the two connecting blocks (5).

2. The magnetic core laminated multilayer circuit board according to claim 1, characterized in that: The locking assembly comprises a plurality of compression springs (6), one end of each of the compression springs (6) is fixedly connected to the inner wall of the fixed plate (2), and one end of each of the compression springs (6) away from the fixed plate (2) is fixedly connected to a clamping block (7).

3. The magnetic core laminated multilayer circuit board according to claim 2, characterized in that: The elastic member is a tension spring (8), one end of which is fixedly connected to the inner wall of the fixed plate (2), and one end of the two tension springs (8) away from the fixed plate (2) is fixedly connected to one end of the L-shaped plate (4).

4. The magnetic core laminated multilayer circuit board according to claim 3, characterized in that: A connecting plate (9) is fixedly connected to the top of the concave plate (1), and grooves matching the clamping block (7) are formed at both ends of the connecting plate (9).

5. The magnetic core laminated multilayer circuit board according to claim 4, characterized in that: A buffer pad (10) is provided on the inner wall of the concave plate (1), a circuit board body (11) is provided on the top of the buffer pad (10), and the buffer pad (10) is made of a shock-absorbing rubber material.

6. The magnetic core laminated multilayer circuit board according to claim 5, characterized in that: Cooling fans are embedded on both the left and right sides of the bottom of the concave plate (1).

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