Multilayer circuit board

Abstract

The utility model discloses a multilayer circuit board, and specifically relates to the circuit board field, the multilayer circuit board comprises a first circuit board, the left and right sides of the first circuit board are movably connected with fixing assemblies, the lower parts of the fixing assemblies are movably connected with buffer assemblies, and the lower part of the first circuit board is provided with a second circuit board. According to the utility model, the buffer assembly comprises the buffer plate, so that a user can push the slide block through the buffer rod in the buffer assembly, thereby enabling the slide block to extrude the extrusion spring, completing the damping under the action of the damping cylinder, and preventing the vibration from damaging the second circuit board when the first circuit board above is vibrated. And meanwhile, a user can fix and unfix the first circuit board and the second circuit board through the fixing assembly, so that the user can conveniently process and maintain the first circuit board and the second circuit board, and the user can conveniently disassemble and replace the first circuit board and the second circuit board.

Description

Technical Field

[0001] The utility model relates to the field of circuit boards, and more specifically, to a multi-layer circuit board. Background Art

[0002] The increase in integrated circuit packaging density has led to a high concentration of interconnects, which makes the use of multiple substrates necessary. Unforeseen design problems such as noise, stray capacitance, crosstalk, etc. have arisen in the layout of printed circuits, so a multi-layer circuit board is needed to meet the performance required by the circuit board;

[0003] After searching, the existing patent (publication number: CN210694457U) discloses a multi-layer circuit board, whose structure includes a circuit board, a thermistor, a capacitor, a matching hole, an inner ring, a resistor, and a multi-layer quick-connect device. The bottom end of the thermistor is fixedly connected to the top of the circuit board by electric welding, and the inner ring and the multi-layer quick-connect device are an integrated structure. The bottom end of the capacitor is fixedly connected to the top of the circuit board by electric welding, and the resistor is fixedly connected to the top of the circuit board by electric welding. There are two groups of matching holes, and the matching holes and the circuit board are an integrated structure. The utility model is a multi-layer circuit board, which is provided with a multi-layer quick-connect device on the structure. The soft ring is gently pinched to make the support angle push the traction line. Under the restriction of the fixed rod, the top ball is pulled back, thereby loosening the constraint point and separating the two circuit boards. During the use of the single-chip circuit board, when the actual required parameters are insufficient, the connection can be completed by directly fitting two identical circuit boards together, so as to achieve parameter integration, which is fast and quick.

[0004] In the process of using the existing multi-layer circuit boards, the circuit boards are mostly suspended, so when the upper circuit board is hit during the use of the circuit boards, the upper circuit board will directly transmit the vibration to the lower circuit board, causing the lower circuit board to be damaged, resulting in a reduction in the service life of the multi-layer circuit board;

[0005] Therefore, a multi-layer circuit board is proposed to solve the above problem. Meanwhile, the above cited patent documents do not propose relevant solutions to solve the problem of difficulty in adjusting the fixing range of the clamp. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a multi-layer circuit board to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a multi-layer circuit board, comprising a first circuit board, both left and right sides of the first circuit board are movably connected with fixed components, a buffer component is movably connected below the fixed component, and a second circuit board is installed below the first circuit board;

[0008] The buffer assembly includes a buffer plate, a sliding rod is fixedly connected to the inside of the buffer plate, a sliding block is movably connected to the outer wall of the sliding block, a hinge seat is fixedly connected to the top of the sliding block, a buffer rod is movably connected to the top of the hinge seat, one end of the sliding block is fixedly connected to a damping cylinder, and an extrusion spring is sleeved on the outer wall of the damping cylinder.

[0009] Preferably, the buffer rod is movably connected to the fixing assembly via a rotating shaft, and a notch matching the buffer rod is provided above the buffer plate.

[0010] Preferably, the slider is movably connected to the buffer rod via a hinge seat, and the slider slides on the slider rod.

[0011] Preferably, the sliding block is fixedly connected to the extrusion spring, and the other end of the extrusion spring is fixedly connected to the buffer plate.

[0012] Preferably, the fixing assembly includes a fixing plate, one side of the fixing plate is movably connected with a control handle, the output end of the control handle is connected with a transmission shaft through an axis linkage, the outer wall of the control handle is connected with a transmission belt, the middle part of the outer wall of the transmission shaft is fixedly connected with a transmission gear, the upper side of the transmission gear is meshedly connected with an upper rack, the lower side of the upper rack is fixedly connected with a spring rod, the lower side of the transmission gear is meshedly connected with a lower rack, and one side of the fixing plate is movably connected with an extrusion plate.

[0013] Preferably, the control handle passes through the interior of the fixing plate, and a bearing is provided at the connection between the control handle and the fixing plate.

[0014] Preferably, the extrusion plates are symmetrically arranged on the upper and lower sides of one side of the fixed plate, and the upper and lower extrusion plates are fixedly connected to the lower rack and the upper rack respectively.

[0015] Preferably, the extrusion plates are symmetrically arranged on the upper and lower sides of one side of the fixed plate, and the upper and lower extrusion plates are fixedly connected to the lower rack and the upper rack respectively.

[0016] Technical effects and advantages of the utility model:

[0017] 1. Compared with the prior art, the multilayer circuit board includes a buffer plate through a buffer assembly. The user can push the slider through the buffer rod inside the buffer assembly, so that the slider squeezes the extrusion spring and completes shock absorption under the action of the damping cylinder, thereby preventing the upper first circuit board from being damaged by the vibration when it is vibrated.

[0018] 2. Compared with the prior art, the multilayer circuit board includes a fixing plate through a fixing component, and the user can fix and release the first circuit board and the second circuit board through the fixing component, which is convenient for the user to process and maintain the first circuit board and the second circuit board, and also convenient for the user to disassemble and replace the first circuit board and the second circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the buffer component of the utility model.

[0021] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the fixing component of the utility model.

[0022] Figure 4 For this utility model Figure 3 A in the figure is an enlarged structural diagram.

[0023] The accompanying drawings are marked as follows: 1. first circuit board; 2. buffer assembly; 201. buffer rod; 202. damping cylinder; 203. buffer plate; 204. sliding rod; 205. slider; 206. extrusion spring; 207. hinge seat; 3. fixing assembly; 301. control handle; 302. extrusion plate; 303. lower rack; 304. transmission belt; 305. fixing plate; 306. transmission shaft; 307. spring rod; 308. transmission gear; 309. upper rack; 4. second circuit board. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] As attached Figure 1 and Figure 2 A multi-layer circuit board shown includes a first circuit board 1, a fixing assembly 3 is movably connected to both left and right sides of the first circuit board 1, a buffer assembly 2 is movably connected below the fixing assembly 3, and a second circuit board 4 is installed below the first circuit board 1;

[0027] The buffer assembly 2 includes a buffer plate 203, the interior of the buffer plate 203 is fixedly connected to a slide rod 204, the outer wall of the slide rod 204 is movably connected to a slider 205, the upper part of the slider 205 is fixedly connected to a hinge seat 207, the upper part of the hinge seat 207 is movably connected to a buffer rod 201, one end of the slider 205 is fixedly connected to a damping cylinder 202, and the outer wall of the damping cylinder 202 is sleeved with an extrusion spring 206.

[0028] Among them: the user can push the slider 205 through the buffer rod 201 inside the buffer component 2, so that the slider 205 squeezes the extrusion spring 206, and under the action of the damping cylinder 202, complete shock absorption, so as to prevent the upper first circuit board 1 from being damaged by the vibration when it is vibrated. At the same time, the user can fix and release the first circuit board 1 and the second circuit board 4 through the fixing component 3, which is convenient for the user to process and maintain the first circuit board 1 and the second circuit board 4, and also convenient for the user to disassemble and replace the first circuit board 1 and the second circuit board 4.

[0029] Embodiment 2

[0030] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0031] As a preferred embodiment, the buffer rod 201 is movably connected to the fixed component 3 via a rotating shaft, and a notch matching the buffer rod 201 is provided above the buffer plate 203; further, through the connection relationship between the buffer rod 201 and the fixed component 3, the fixed component 3 can squeeze the buffer rod 201 when moving downward under the action of an external force, so that the buffer rod 201 can be tilted, and the notch provided above the buffer plate 203 can prevent the tilt plane of the buffer rod 201 from being offset.

[0032] As a preferred embodiment, the slider 205 and the buffer rod 201 are movably connected via a hinge seat 207, and the slider 205 slides on the slide rod 204; further, through the connection relationship between the slider 205 and the buffer rod 201, and the structural relationship between the slider 205 and the slide rod 204, the slider 205 can move on the slide rod 204 under the pushing action of the buffer rod 201.

[0033] As a preferred embodiment, the slider 205 is fixedly connected to the extrusion spring 206, and the other end of the extrusion spring 206 is fixedly connected to the buffer plate 203; further, through the connection relationship between the slider 205 and the extrusion spring 206, and the connection relationship between the extrusion spring 206 and the buffer plate 203, the slider 205 can squeeze the extrusion spring 206 during the movement, so that the movement of the slider 205 is buffered.

[0034] As a preferred embodiment, the fixing component 3 includes a fixing plate 305, one side of the fixing plate 305 is movably connected with a control handle 301, the output end of the control handle 301 is connected with a transmission shaft 306 through an axis linkage, the outer wall of the control handle 301 is connected with a transmission belt 304, the middle part of the outer wall of the transmission shaft 306 is fixedly connected with a transmission gear 308, the upper side of the transmission gear 308 is meshedly connected with an upper rack 309, the lower side of the upper rack 309 is fixedly connected with a spring rod 307, the lower side of the transmission gear 308 is meshedly connected with a lower rack 303, and one side of the fixing plate 305 is movably connected with an extrusion plate 302; further, the user can fix and release the first circuit board 1 and the second circuit board 4 through the fixing component 3, which is convenient for the user to process and maintain the first circuit board 1 and the second circuit board 4, and also convenient for the user to disassemble and replace the first circuit board 1 and the second circuit board 4.

[0035] As a preferred embodiment, the control handle 301 passes through the interior of the fixed plate 305, and a bearing is provided at the connection between the control handle 301 and the fixed plate 305; further, through the structural relationship between the control handle 301 and the fixed plate 305, it is convenient for the user to control the structure inside the fixed plate 305 under the action of the control handle 301, and the bearing provided at the connection between the control handle 301 and the fixed plate 305 can reduce the friction of the fixed plate 305 on the control handle 301.

[0036] As a preferred embodiment, the extrusion plate 302 is symmetrically arranged on the upper and lower sides of one side of the fixed plate 305, and the upper and lower extrusion plates 302 are fixedly connected to the lower rack 303 and the upper rack 309 respectively; further, through the positional relationship between the extrusion plate 302 and the fixed plate 305, and the connection relationship between the extrusion plate 302 and the lower rack 303 and the upper rack 309 respectively, it is convenient for the user to control the extrusion plate 302 through the lower rack 303 and the upper rack 309.

[0037] As a preferred embodiment, the transmission shaft 306 and the transmission gear 308 are coaxially arranged, and a belt drive structure is formed between the left and right transmission shafts 306 through a transmission belt 304; further, through the structural relationship between the transmission shaft 306 and the transmission gear 308, the transmission shaft 306 can drive the transmission gear 308 to rotate, and through the structural relationship between the left and right transmission shafts 306, the transmission shafts 306 on both sides can rotate simultaneously under the action of the transmission belt 304.

[0038] The working process of the utility model is as follows:

[0039] When the user needs to fix the first circuit board 1 and the second circuit board 4, the user can rotate the control handle 301 to make the transmission shaft 306 drive the transmission gear 308 to rotate. Under the action of the transmission gear 308, the upper rack 309 and the lower rack 303 move in opposite directions, driving the extrusion plate 302 to move in opposite directions. After that, the user places the first circuit board 1 and the second circuit board 4 between the extrusion plate 302, and the user can release the control handle 301. Under the action of the spring rod 307, the upper rack 309 and the lower rack 303 are reset, driving the extrusion plate 302 to fix the first circuit board 1 and the second circuit board 4.

[0040] When the first circuit board 1 is impacted from above, the first circuit board 1 drives the fixing assembly 3 to move downward, squeezing the buffer rod 201. Under the action of the rotating shaft and the hinge seat 207, the buffer rod 201 pushes the slider 205 to move on the slide bar 204, squeezing the squeezing spring 206, and buffering the movement of the slider 205 through the damping cylinder 202, thereby preventing the second circuit board 4 from being damaged by the impact.

[0041] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A multi-layer circuit board, comprising a first circuit board (1), characterized in that: The left and right sides of the first circuit board (1) are both movably connected to fixing components (3), the bottom of the fixing component (3) is movably connected to a buffer component (2), and a second circuit board (4) is installed below the first circuit board (1); The buffer assembly (2) comprises a buffer plate (203), the interior of the buffer plate (203) is fixedly connected to a slide rod (204), the outer wall of the slide rod (204) is movably connected to a slider (205), the upper part of the slider (205) is fixedly connected to a hinge seat (207), the upper part of the hinge seat (207) is movably connected to a buffer rod (201), one end of the slider (205) is fixedly connected to a damping cylinder (202), and the outer wall of the damping cylinder (202) is sleeved with a compression spring (206).

2. A multi-layer circuit board according to claim 1, characterized in that: The buffer rod (201) is movably connected to the fixing assembly (3) via a rotating shaft, and a notch matching the buffer rod (201) is provided above the buffer plate (203).

3. A multi-layer circuit board according to claim 1, characterized in that: The slider (205) and the buffer rod (201) are movably connected via a hinge seat (207), and the slider (205) slides on the slide rod (204).

4. A multi-layer circuit board according to claim 1, characterized in that: The slider (205) is fixedly connected to the extrusion spring (206), and the other end of the extrusion spring (206) is fixedly connected to the buffer plate (203).

5. A multi-layer circuit board according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing plate (305), one side of the fixing plate (305) is movably connected to a control handle (301), an output end of the control handle (301) is connected to a transmission shaft (306) through an axis linkage, an outer wall of the control handle (301) is connected to a transmission belt (304), a transmission gear (308) is fixedly connected to the middle of the outer wall of the transmission shaft (306), an upper side of the transmission gear (308) is meshedly connected to an upper rack (309), a spring rod (307) is fixedly connected to the lower side of the upper rack (309), a lower side of the transmission gear (308) is meshedly connected to a lower rack (303), and one side of the fixing plate (305) is movably connected to an extrusion plate (302).

6. A multi-layer circuit board according to claim 5, characterized in that: The control handle (301) passes through the interior of the fixing plate (305), and a bearing is provided at the connection between the control handle (301) and the fixing plate (305).

7. A multi-layer circuit board according to claim 5, characterized in that: The extrusion plates (302) are symmetrically arranged at the upper and lower sides of one side of the fixed plate (305), and the upper and lower extrusion plates (302) are fixedly connected to the lower rack (303) and the upper rack (309) respectively.

8. A multi-layer circuit board according to claim 5, characterized in that: The transmission shaft (306) and the transmission gear (308) are coaxially arranged, and a belt transmission structure is formed between the transmission shafts (306) on the left and right sides via a transmission belt (304).

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