Multilayer circuit board with uniform jointed board structure

Abstract

A multilayer circuit board with a uniform jointed board structure comprises a plurality of circuit board main bodies which are stacked up and down at intervals and a plurality of connecting structures for splicing the plurality of circuit board main bodies, and each connecting structure comprises a clamping column, a supporting rod and a first telescopic spring; the clamping column is clamped on the circuit board main body in a penetrating manner from bottom to top, and the upper end and the lower end of the clamping column are respectively provided with a telescopic hole with an upward opening and a splicing hole with a downward opening; the lower end of the supporting rod and the first telescopic spring are clamped in the telescopic hole; the inner side wall of the telescopic hole is further provided with a plurality of sets of limiting grooves, every two limiting grooves are oppositely arranged, the heights of the multiple sets of limiting grooves are different, limiting protrusions are correspondingly arranged on the two sides of the lower end of the supporting rod, and the limiting protrusions can be clamped in the limiting grooves. According to the utility model, the height-adjustable connecting structure is designed, so that the distance between the board bodies of each layer can be freely adjusted when the multi-layer circuit board is assembled and stacked; the utility model has the advantages of strong practicability and strong popularization significance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of circuit boards, in particular to a kind of multilayer circuit board with uniform board structure. BACKGROUND

[0002] Circuit board, also commonly known as printed circuit board or printed wiring board, English abbreviation PCB, it is important electronic component, is the support of electronic components, is the carrier of electronic components electrical connection. Before the appearance of circuit board, the interconnection between electronic components is all connected by relying on wire. Nowadays, wire only exists in laboratory for test application, and circuit board has occupied the absolute control position in electronic industry.

[0003] In order to cope with the increasingly complex circuit requirements, people designed the method of stacking and splicing multiple circuit boards to form multilayer circuit board product. But in the process of splicing and forming the existing multilayer circuit board product, due to the different heights of electronic components welded on the board body, the preset spacing between the board body is often not matched, thereby affecting the normal assembly of multilayer circuit board. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide a multilayer circuit board with uniform board structure in view of the deficiencies in the prior art.

[0005] A multilayer circuit board with uniform board structure comprises multiple circuit board bodies stacked vertically and a plurality of connecting structures for splicing the circuit board bodies. The connecting structure comprises a clamping column, a supporting rod and a first extension spring. The clamping column is vertically arranged and clamped on the circuit board body, comprising a clamping portion and a clamping portion integrally arranged at the lower end of the clamping portion. The upper and lower ends of the clamping column are respectively provided with an extension hole and a splicing hole. The lower end of the supporting rod and the first extension spring are clamped in the extension hole. The supporting rod can be vertically moved in the extension hole, and the two ends of the first extension spring are respectively in contact with the bottom of the supporting rod and the bottom of the extension hole. The inner side wall of the extension hole is provided with a plurality of groups of limiting grooves arranged oppositely. The heights of the limiting grooves are different. The lower end of the supporting rod is provided with a limiting protrusion on both sides. The limiting protrusion can be clamped in the limiting groove. The upper end of the supporting rod on the lower side can be embedded in the splicing hole at the bottom of the clamping column on the upper side and spliced with the clamping column.

[0006] Furthermore, the connecting structure also includes a limiting block, a second telescopic spring, a movable locking rod, and a third telescopic spring, with limiting holes corresponding to the inner sides of several sets of limiting grooves. The limiting block and the second telescopic spring are radially engaged at the lower end of the support rod, wherein the outer end of the limiting block can extend horizontally to the outside of the support rod and engage within the limiting hole, and the second telescopic spring is sleeved on the limiting block. The movable locking rod and the third telescopic spring are axially engaged within the support rod, wherein the upper end of the movable locking rod can extend vertically outside the support rod, and the lower end of the movable locking rod can abut against the inner end of the limiting block, and the third telescopic spring is sleeved on the movable locking rod.

[0007] Furthermore, the connection structure also includes a limiting ring, which is sleeved on the through part and together with the engaging part limits and fixes the circuit board body.

[0008] Furthermore, the connecting structure also includes a cap, which is installed on the top of the uppermost connecting structure and can limit the upper end of the movable locking rod.

[0009] Furthermore, the connection structure also includes several gaskets, each of which is sleeved on the through part and located between the through part and the circuit board body and between the engaging part and the circuit board body, respectively. The gaskets are made of elastic cushioning material.

[0010] In summary, the beneficial effects of this utility model of a multilayer circuit board with a uniform panel structure are as follows: by designing an adjustable-height connection structure, the spacing between the layers of the multilayer circuit board can be freely adjusted during assembly and stacking, thereby successfully achieving the purpose of assembling boards of various heights into a multilayer circuit board; the addition of a locking structure inside the connection structure and a limiting ring structure on the outside makes the support and fixation of the connection structure for the multilayer circuit board more secure; the design of the gasket can further improve the shock absorption capacity of the multilayer circuit board; this utility model is highly practical and has strong promotional significance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a multilayer circuit board with a uniform panel structure according to the present invention;

[0012] Figure 2 for Figure 1 A schematic diagram of the decomposed structure;

[0013] Figure 3 for Figure 2 A schematic diagram of the exploded structure of the connecting structure;

[0014] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of the central card column. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0016] like Figures 1 to 4 As shown, this utility model provides a multilayer circuit board 100 with a uniform panel structure, which includes multiple circuit board bodies 10 stacked vertically at intervals and several connecting structures 20 for splicing the multiple circuit board bodies 10. Each connecting structure 20 includes a locking post 21, a support rod 22, and a first telescopic spring 23. It is understood that in this utility model, the connection methods between the components and structures include, but are not limited to, snap-fit ​​connections, threaded connections, or magnetic connections, etc., which are all conventional technologies in this field and will not be described in detail here.

[0017] The engaging post 21 is inserted and engaged onto the circuit board body 10 from bottom to top. It includes an insert portion 211 and an engaging portion 212 integrally formed at the lower end of the insert portion 211. The upper and lower ends of the engaging post 21 are respectively provided with an upward-opening telescopic hole 213 and a downward-opening splicing hole 214. The lower end of the support rod 22 and the first telescopic spring 23 are both engaged in the telescopic hole 213. The support rod 22 can move up and down along the telescopic hole 213, while the two ends of the first telescopic spring 23 abut against the bottom of the support rod 22 and the bottom of the telescopic hole 213, respectively.

[0018] The inner wall of the telescopic hole 213 is also provided with several sets of opposing limiting grooves 215. The heights of the limiting grooves 215 are not the same. The lower ends of the support rod 22 are provided with limiting protrusions 221 on both sides, and the limiting protrusions 221 can be engaged in the limiting grooves 215. The upper end of the lower support rod 22 can be fitted into the splicing hole 214 at the bottom of the upper engaging post 21 and spliced ​​and fixed with the engaging post 21.

[0019] The first telescopic spring 23 allows the support rod 22 to elastically extend and retract along the locking post 21, thereby adjusting the extension and retraction height of the support rod 22 in conjunction with the design of the limiting groove 215 and the limiting protrusion 221. When it is necessary to adjust the extension and retraction height of the support rod 22, the user only needs to press down on the support rod 22 to compress the first telescopic spring 23 as much as possible, then rotate the support rod 22 so that the limiting protrusion 221 corresponds to the limiting groove 215 at different heights, and then release the pressure on the support rod 22. Under the elastic force of the first telescopic spring 23, the support rod 22 will spring back to the corresponding height, thus realizing the overall height adjustment of the connecting structure 20 to adapt to different preset spacings of the circuit board body 10.

[0020] The connecting structure 20 further comprises a limiting block 24, a second telescopic spring 25, a movable locking rod 26 and a third telescopic spring 27. The inner side of each set of limiting grooves 215 is provided with a limiting block hole 216.

[0021] The limiting block 24 and the second telescopic spring 25 are radially clamped and arranged at the lower end of the supporting rod 22. The outer end of the limiting block 24 can be horizontally extended to the outer side of the supporting rod 22 and clamped in the limiting block hole 216. The second telescopic spring 25 is sleeved on the limiting block 24.

[0022] The limiting block 24 and the movable locking rod 26 can limit each other, thereby realizing the locking between the supporting rod 22 and the clamping column 21. When the supporting rod 22 and the clamping column 21 need to be locked, the movable locking rod 26 is only pressed downward, and the lower end of the movable locking rod 26 pushes the limiting block 24 radially outward, so that the limiting block 24 extends in the limiting block hole 216, thereby realizing the locking between the supporting rod 22 and the clamping column 21. When the locking needs to be released, the movable locking rod 26 is only released, and the movable locking rod 26 is driven by the third telescopic spring 27 to rise again, and the limiting block 24 is also driven by the second telescopic spring 25 to retract radially inward, thereby realizing the unlocking between the supporting rod 22 and the clamping column 21.

[0023] The connecting structure 20 further comprises a limiting ring 28, which is sleeved on the penetrating part 211 and is fixed together with the clamping part 212 to limit and fix the circuit board body 10. The limiting ring 28 and the clamping part 212 can clamp and fix the circuit board, effectively avoiding the sliding of the circuit board body 10 along the clamping column 21 due to vibration and other factors, thereby avoiding the risk of knocking and scratching between the upper and lower plate bodies.

[0024] The connecting structure 20 further comprises a cap 29, which is arranged at the top of the uppermost connecting structure 20. The cap 29 can limit the upper end of the movable locking rod 26. The wide and flat cap 29 can not only cover the sharp ends of the movable locking rod 26 and the supporting rod 22 to avoid safety hazards, but also limit the movable locking rod 26, so that the uppermost connecting structure 20 of the multi-layer circuit board also has a locking effect.

[0025] The connecting structure 20 further comprises a plurality of gaskets (not shown), each of which is sleeved on the penetrating portion 211 and located between the penetrating portion 211 and the circuit board body 10 and between the clamping portion 212 and the circuit board body 10, and the material of the gaskets is elastic buffer material. The gaskets of elastic buffer material can effectively protect each layer of the multilayer circuit board, greatly reducing the risk of damage to the multilayer circuit board caused by external force.

[0026] In summary, the multilayer circuit board 100 with the uniform board splicing structure has the following advantages: the height-adjustable connecting structure 20 can freely adjust the spacing between the layers of the multilayer circuit board when splicing and stacking, thereby successfully achieving the purpose of assembling various boards of different heights into a multilayer circuit board; the locking structure is additionally arranged in the connecting structure 20, and the limiting ring 28 is sleeved on the outside, so that the connecting structure 20 can more firmly support and fix the multilayer circuit board; the gaskets can further improve the shock absorption capacity of the multilayer circuit board; the multilayer circuit board has strong practicability and great popularization significance.

[0027] The above-described embodiments only express one implementation of the utility model, which is described in detail, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, some modifications and improvements can be made, which are within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A multilayer circuit board having a uniform panel structure, characterized by: The application relates to a connecting structure for connecting a plurality of circuit board bodies stacked vertically, which comprises a clamping column, a supporting rod and a first elastic spring.

2. The multi-layered circuit board having a uniform panel structure according to claim 1, wherein: The connecting structure further comprises a limiting block, a second elastic spring, a movable locking rod and a third elastic spring, and the inner side of each group of limiting grooves is provided with a limiting clamping hole.

3. The multi-layered circuit board having a uniform panel structure according to claim 1, wherein: The connecting structure further comprises a limiting ring, which is sleeved on the penetrating part and limits and fixes the circuit board body together with the clamping part.

4. The multi-layered circuit board having a uniform panel structure according to claim 2, wherein: The connecting structure further comprises a cap, which is arranged on the top of the uppermost connecting structure and limits the upper end of the movable locking rod.

5. The multi-layered circuit board having a uniform panel structure according to claim 1, wherein: The connecting structure further comprises a plurality of gaskets, which are all sleeved on the penetrating part and arranged between the penetrating part and the circuit board body and between the clamping part and the circuit board body, and the material of the gaskets is elastic buffer material.

Images