CN216600240U - Laminated plate body structure - Google Patents
Laminated plate body structure Download PDFInfo
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- CN216600240U CN216600240U CN202123432536.5U CN202123432536U CN216600240U CN 216600240 U CN216600240 U CN 216600240U CN 202123432536 U CN202123432536 U CN 202123432536U CN 216600240 U CN216600240 U CN 216600240U
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Abstract
The utility model discloses a stromatolite formula plate body structure, include: the first plate body is curved, and pins are arranged on the first plate body; the radiator is attached to the first plate body; the second plate body is connected with the pins and provided with deformation grooves. This stromatolite formula plate body structure is through seting up tangible variable groove on the second plate body, when first plate body with after the radiator laminating, first plate body becomes planar by the curved surface form shape, and the deformation groove of second plate body produces deformation based on the deformation power of pin conduction on the first plate body, and the reducible second plate body of deformation in deformation groove receives external force and resumes the required elasticity of deformation, reduces the power of dragging of second plate body to first plate body then, finally reduces the power of dragging that the pin on the first plate body received, avoids the pin to desolder to fall to guarantee the life of pin.
Description
Technical Field
The utility model relates to a circuit board packaging technology field, in particular to stromatolite formula plate body structure.
Background
An existing Intelligent Power Module (IPM) integrates a functional circuit unit on the basis of a traditional Power Module, and is widely applied to the fields of household appliances, industrial transmission and the like due to high integration level, high reliability and simple external supporting circuits.
An existing built-in function unit exists in a form of a PCB (referred to as a function circuit board for short), the function circuit board is stacked above a power circuit board and is welded on a plurality of pin pins of the power circuit board, so that connection and signal transmission are realized with the power circuit board, and a specific connection mode is shown in fig. 1 of the specification. In the prior art, after the power circuit board is connected with the radiator, the power circuit board is finally formed with a certain radian (as the specification attached figure 2), after the power circuit board is locked with the radiator, the power circuit board is forced to be flattened, the functional circuit board can be pulled along with the power circuit board and brings a certain radian (as the specification attached figure 3), and then a connecting pin between the functional circuit board and the power circuit board is pulled to bear force, and the pin is easy to be detached due to pulling force because the welding spot of the pin connected with the power circuit board is weak, so that the pin is easy to fall off, and the product fails prematurely.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a stromatolite formula plate body structure, the power circuit board who aims at solving current stromatolite formula circuit board is connected the back with the function circuit board, and the function circuit board is the arcuation, and the function circuit board of this arcuation has the power of dragging to the power circuit board, thereby drags the pin of power circuit board easily and arouses the technical problem that the pin desoldered.
In order to achieve the above object, the present invention provides a laminated plate structure, including:
the first plate body is curved, and pins are arranged on the first plate body;
the radiator is attached to the first plate body;
the second plate body is connected with the pins and provided with a deformation groove;
the first plate body is attached to the radiator, the first plate body is deformed into a plane shape from a curved surface, and the deformation groove of the second plate body is deformed based on deformation force conducted by pins on the first plate body.
Further, the length direction of the deformation groove is perpendicular to the length direction of the second plate body.
Furthermore, the deformation groove is arranged on one side surface of the second plate body, which is far away from the first plate body.
Further, the deformation groove is in a rectangular structure shape.
Furthermore, the second plate body is a rigid-flexible plate.
Furthermore, the second plate body adopts a semi-flexible plate.
Further, the thickness of the second plate body is less than 1.2 mm.
Furthermore, the second plate body is provided with a connecting through hole, and the pin penetrates through the connecting through hole to enable the second plate body to be connected with the first plate body.
This stromatolite formula plate body structure is through seting up tangible variable groove on the second plate body, when first plate body with after the radiator laminating, first plate body becomes planar by the curved surface form shape, and the deformation groove of second plate body produces deformation based on the deformation power of pin conduction on the first plate body, and the reducible second plate body of deformation in deformation groove receives external force and resumes the required elasticity of deformation, reduces the power of dragging of second plate body to first plate body then, finally reduces the power of dragging that the pin on the first plate body received, avoids the pin to desolder to fall to guarantee the life of pin.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of a conventional laminated plate body;
fig. 2 is a schematic diagram illustrating a connection between a built-in function unit and a module power circuit board of a conventional stacked board structure;
fig. 3 is a schematic diagram illustrating a connection between a module power circuit board and a heat sink in a conventional stacked board structure;
fig. 4 is a schematic structural view of a laminated plate body according to a first embodiment;
the reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Built-in |
2 | Module |
| 10 | |
11 | |
| 12 | Connecting through |
20 | |
| 21 | |
30 | Heat radiator |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
An existing built-in function unit exists in a form of a circuit board (PCB), the function circuit board is stacked and placed above a power circuit board 2, the function circuit board 1 is welded on a plurality of pin pins of the power circuit board 2, so that connection and signal transmission are achieved with the power circuit board 2, and the specific connection mode is shown in the attached drawing 1 of the specification. In the prior art, after the power circuit board 2 is connected with the radiator, the power circuit board 2 is finally formed with a certain radian (as the specification attached figure 2), after the power circuit board 2 is locked with the radiator 30, the power circuit board 2 is forced to be flattened, the functional circuit board 1 can be pulled along with the power circuit board and brings a certain radian (as the specification attached figure 3), and then a connecting pin between the functional circuit board 1 and the power circuit board 2 is pulled to bear force, and because the welding point of the pin connected with the power circuit board 2 is weak, the pin is easy to be detached due to pulling force, so that the pin falls off, and the product fails prematurely.
The technical scheme mainly aims to provide a laminated plate body structure, and aims to solve the technical problem that after a power circuit board and a functional circuit board of the existing laminated circuit board are connected, the functional circuit board is in an arc shape, the arc-shaped functional circuit board has pulling force on the power circuit board, and the pins of the power circuit board are easily pulled, so that the pins are detached.
Example one
Referring to fig. 4, fig. 4 shows a laminated plate structure according to the present embodiment, which includes:
the first plate body 20 is in a curved surface shape, and pins 21 are arranged on the first plate body;
a heat sink 30 attached to the first plate;
the second board body 10 is connected with the pins 21, a maximum curvature deformation area 13 is formed on the second board body 10 after the first board body 20 is connected with the heat sink 30, a deformation groove 11 is formed in the second board body, and the deformation groove 11 is arranged in the maximum curvature deformation area 13;
after the first plate body 20 and the heat sink 30 are attached to each other, the first plate body 20 is deformed into a plane shape from a curved surface, and the deformation groove 11 of the second plate body is deformed based on the deformation force transmitted by the pins 21 on the first plate body.
In this embodiment, the first board body 20 is specifically a power circuit board. The second board body 10 is specifically a functional circuit board. The second plate body 10 is provided with a connecting through hole 12, the pin 21 penetrates through the connecting through hole 12, so that the second plate body 10 is connected with the first plate body 20, and the second plate body 10 is positioned at the upper end of the pin 21 and is arranged at intervals with the first plate body 20 to form a laminated structure.
Because the first plate 20 is curved, after the first plate 20 is attached to the heat sink, the first plate is deformed from the curved shape to a flat shape. Subsequently, the second board body 10 is connected with the pins 21 on the first board body 20, and the second board body 10 is bent through the transmission of the deformation force of the pins 21 on the first board body, at this time, the second board body 10 has an area with the maximum bending degree, and the area with the maximum bending degree is the maximum curvature deformation area 13. Because the maximum curvature deformation zone 13 has the largest bending degree, the elastic force of the maximum curvature deformation zone 13 for recovering deformation is the largest, and the deformation groove 11 is arranged in the area, so that the thickness of the area can be thinned. When the deformation groove 11 is deformed based on the deformation force transmitted by the pin 21 on the first plate body, since the thickness of the maximum curvature deformation region 13 where the deformation groove 11 is located is thinner, the elastic force required for deformation recovery of the maximum curvature deformation region 13 can be reduced, and then the pulling force of the second plate body 10 on the first plate body 20 is reduced, and finally the pulling force received by the pin 21 on the first plate body is reduced.
To sum up, this stromatolite formula plate body structure is through seting up tangible deformation groove on the second plate body, work as first plate body with after the radiator laminating, first plate body becomes plane by curved surface form shape, and the deformation groove of second plate body produces deformation based on the deformation power of pin conduction on the first plate body, and the reducible second plate body of deformation in deformation groove receives external force and resumes the required elasticity of deformation, reduces the pulling force of second plate body to first plate body then, finally reduces the pulling force that the pin on the first plate body received, avoids the pin to take off the welding and falls to guarantee the life of pin.
Further, the length direction of the deformation groove 11 is perpendicular to the length direction of the second plate body 10.
In this embodiment, both ends of the second plate 10 in the length direction are bent downward, so the maximum curvature deformation region 13 of this embodiment is perpendicular to the length direction of the second plate 10, and in order to reduce the elastic force required for the maximum curvature deformation region 13 to recover and deform, the deformation slot 11 is disposed in the maximum curvature deformation region 13, so the length direction of the deformation slot 11 is perpendicular to the length direction of the second plate 10.
Further, the deformation groove 11 is disposed on a side surface of the second plate 10 away from the first plate 20.
When the second plate 10 is bent by an external force, if the deformation groove 11 is disposed on a side surface close to the first plate 20, the two side walls in the deformation groove 11 may abut against each other due to the bending of the second plate 10, thereby increasing the pulling force applied to the maximum curvature deformation region 13. Since the maximum curvature deformation region 13 is weak, it is easily broken due to an excessive pulling force. Therefore, in the present embodiment, the deformation groove 11 is disposed on a side surface of the second board body 10 away from the first board body 20, so as to prevent two side walls in the deformation groove 11 from abutting against and pressing each other.
Further, the deformation groove 11 has a rectangular structure. However, in other embodiments, the deformation groove 11 may have other shapes such as a triangular groove or a circular groove.
Further, the thickness of the second plate body 10 is less than 1.2 mm. In the present embodiment, the thickness of the second plate body 10 is 1 mm.
Example two
The difference between the first embodiment and the second embodiment is that, in order to reduce the elastic force required by the circular arc-shaped second board 10 to recover from deformation, the second board 10 of the present embodiment is designed as a rigid-flex printed wire board (gii-flex printed wire board).
The rigid-flex circuit board is a circuit board with FPC (flexible printed circuit) characteristics and PCB (printed circuit board) characteristics, which is formed by combining a flexible circuit board and a rigid circuit board according to relevant process requirements through procedures such as pressing and the like. The rigid-flex printed circuit board has the characteristics of both the FPC and the PCB, so that the rigid-flex printed circuit board can be used in products with special requirements, and has a certain flexible area and a certain rigid area. In this embodiment, set up maximum curvature deformation zone 13 into flexible region, other be different from and set up to rigid region, can reduce the second plate body of arc because of recovering the required elasticity of deformation, then reduce the second plate body and to the power of dragging of first plate body, finally reduce the power of dragging that the pin on the first plate body received to guarantee the life of pin.
In addition, the second board 10 of the present embodiment may also be designed as a Semi-flexible board (Semi-Flex printed wiring board).
The semi-Flexible Printed Circuit Board (FPC) is a Printed Circuit Board made of a Flexible insulating base material (mainly polyimide or polyester film), and has many advantages that a rigid Printed Circuit Board does not have. For example, it can be freely bent, rolled, folded. The FPC can be used for greatly reducing the volume of electronic products, and is suitable for the development of the electronic products in the directions of high density, miniaturization and high reliability. Therefore, the FPC is widely applied to the fields or products of aerospace, military, mobile communication, laptop computers, computer peripherals, PDAs, digital cameras and the like. The FPC has the advantages of good heat dissipation and weldability, easy connection, low comprehensive cost and the like. In this embodiment, the second board 10 is designed as a semi-flexible board, and the flexible second board 10 can avoid pulling the first board 20, thereby ensuring the service life of the pins 21.
The second plate body 10 of this embodiment utilizes the speciality of self material through designing for semi-flexible or flexible PCB board, reduces the second plate body 10 and to the power of dragging of first plate body 20, is showing the power of dragging that the welding point that reduces pin 21 on the first plate body 20 received, guarantees the life of pin.
The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. A laminated plate structure, comprising:
the first plate body is curved, and pins are arranged on the first plate body;
the radiator is attached to the first plate body;
the second plate body is connected with the pins and provided with a deformation groove;
the first plate body is attached to the radiator, the first plate body is deformed into a plane shape from a curved surface, and the deformation groove of the second plate body is deformed based on deformation force conducted by pins on the first plate body.
2. The laminated plate body structure of claim 1, wherein a length direction of said deformation slot is perpendicular to a length direction of said second plate body.
3. The laminated plate body structure of claim 1, wherein the deformation slot is disposed on a side of the second plate body remote from the first plate body.
4. The laminated plate body structure of claim 1, wherein said deformation channel is rectangular in configuration.
5. The laminated plate body structure of claim 1, wherein the second plate body is a rigid-flex board.
6. The laminated plate body structure of claim 1, wherein said second plate body is a semi-flexible plate.
7. The laminated plate body structure of claim 1, wherein the thickness of said second plate body is less than 1.2 mm.
8. The laminated plate body structure of claim 1, wherein the second plate body is provided with a connection through hole, and the pin penetrates the connection through hole to connect the second plate body with the first plate body.
9. The laminated plate structure as claimed in any one of claims 1 to 8, wherein said first plate is a power circuit board.
10. The laminated plate structure as claimed in any one of claims 1 to 8, wherein said second plate is a functional circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123432536.5U CN216600240U (en) | 2021-12-30 | 2021-12-30 | Laminated plate body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123432536.5U CN216600240U (en) | 2021-12-30 | 2021-12-30 | Laminated plate body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216600240U true CN216600240U (en) | 2022-05-24 |
Family
ID=81630863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123432536.5U Active CN216600240U (en) | 2021-12-30 | 2021-12-30 | Laminated plate body structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216600240U (en) |
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2021
- 2021-12-30 CN CN202123432536.5U patent/CN216600240U/en active Active
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