CN214901424U - PCB makeup and microtome pre-installation module - Google Patents

Abstract

The utility model relates to a printed circuit board technical field especially relates to a PCB makeup and microtome preassemble module. The PCB jointed board comprises a plurality of PCB functional boards, wherein each PCB functional board comprises a reference edge, a positioning hole and a plurality of heat dissipation holes, the positioning holes are formed in the PCB functional boards, the shapes and the sizes of the positioning holes of the plurality of PCB functional boards are the same, and the distance between the reference edge and the center of each positioning hole is L1; the plurality of heat dissipation holes are arranged in an array mode, each row of heat dissipation holes are parallel to the reference edge, the connection line distance between the reference edge and the circle center of one row of heat dissipation holes is L2, and L1 and L2 of different PCB functional boards are equal. The PCB function board that a plurality of await measuring can be obtained to one-time grinding, can improve the efficiency of obtaining the PCB function board that awaits measuring, effectively improves the efficiency to the microtome experiment of a plurality of PCB function boards that await measuring. The utility model provides a microtome pre-installation module effectively improves a plurality of examination of awaiting measuring PCB function boards and carries out the efficiency of microtome experiment.

Description

PCB makeup and microtome pre-installation module

Technical Field

The utility model relates to a printed circuit board technical field especially relates to a PCB makeup and microtome preassemble module.

Background

Offer a plurality of louvres that are the intensive arranging of matrix form on the PCB function board, the louvre is 0.25mm ~ 0.35 mm's little metalized hole, the louvre is used for electrically conducting and heat dissipation, different forms's louvre mode of arranging and different louvre apertures will lead to the heat-resisting ability difference of PCB function board, the operator needs to carry out the microtomy experiment to the PCB function board in different forms's louvre mode of arranging and different louvre apertures, thereby obtain the respective heat-resisting ability of PCB function board in different forms's louvre mode of arranging and different louvre apertures, when needs test PCB function board quantity is more, operator's work load will rise, the test efficiency is low.

In order to solve the above problems, it is desirable to provide a PCB panel and a micro-chip pre-assembly module, which solve the problems of low efficiency and high cost in the micro-chip manufacturing process.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first purpose provides a PCB makeup, can improve the efficiency that obtains the PCB function board that awaits measuring, effectively improves the efficiency of the microtome experiment to a plurality of PCB function boards that await measuring.

The utility model discloses a second purpose provides a microtome pre-installation module, effectively improves the efficiency of the microtome experiment to a plurality of examination PCB function boards that await measuring.

To achieve the purpose, the utility model adopts the following technical proposal:

a PCB makeup includes a plurality of PCB functional boards, the PCB functional boards include:

a reference edge;

the positioning holes are formed in the PCB functional boards, the shapes and the sizes of the positioning holes of the PCB functional boards are the same, and the distance from the reference edge to the connecting line of the centers of the positioning holes is L1; and

the radiating holes are arranged in an array mode, each row of radiating holes are parallel to the reference edge, the line distance between the reference edge and the circle center of one row of the radiating holes is L2, and the PCB functional boards tested in the same group are identical in L1 and identical in L2.

As a preferred scheme, the PCB jointed board further comprises a transition plate, two adjacent PCB functional boards are connected through the transition plate, and an easily detachable structure is arranged at the position where the transition plate is connected with the PCB functional boards.

As a preferable aspect, the easy detachable structure includes:

the plurality of stamp holes are formed in the edge, connected with the PCB, of the transition plate, and the plurality of stamp holes are arranged at intervals along the edge, connected with the PCB, of the transition plate.

As a preferable aspect, the easy detachable structure includes:

the PCB comprises a transition plate, a PCB function plate and a notch, wherein the notch is arranged on the upper end face and/or the lower end face of the position where the transition plate is connected with the PCB function plate, the notch extends along the edge where the transition plate is connected with the PCB function plate, the cross section of the notch is V-shaped, and the width of the cross section of the notch is gradually reduced from the surface of the transition plate to the inside of the transition plate along the thickness direction of the transition plate.

As a preferable scheme, the width of the transition plate is 14% -20% of the width of the PCB functional plate.

As a preferable scheme, the transition plate is arranged in the middle of the edge of the PCB functional board, and a hollow hole is formed between two adjacent PCB functional boards.

As a preferable scheme, the number of the positioning holes is two, a central connecting line of the two positioning holes is parallel to the reference edge, the distance between the centers of the two positioning holes is L3, and L3 of different PCB functional boards tested in the same group are equal.

As a preferable scheme, the positioning hole is a round hole or a square hole.

Preferably, the distance L2 between the reference edge and the line connecting the centers of the heat dissipation holes in one row is 2-10 mm.

A microtome sectionable preassembly module comprising:

the PCB functional boards are obtained by splitting the PCB jointed board, and are arranged in parallel along a preset direction; and

the positioning rod sequentially penetrates through the positioning holes which are formed in the PCB functional boards and distributed along the preset direction, so that the reference edges of the PCB functional boards are in the same plane; and

and the fixing block is used for fixing one end of the PCB functional board which is not provided with the positioning rod.

The utility model has the advantages that:

the utility model provides a pair of PCB makeup, through tearing into a plurality of PCB function boards with the PCB makeup, with a plurality of PCB function boards along predetermineeing direction parallel arrangement, pass a plurality of locating holes that a set of orientation was arranged along predetermineeing with the locating lever in proper order, so that the benchmark limit of a plurality of PCB function boards in the first plane, because the L1 of different PCB function boards equals and L2 equals, so the centre of a circle line of one row of louvre on the different PCB function boards is along predetermineeing direction parallel arrangement. The operator uses first plane as grinding initial position, grinds PCB function board from top to bottom gradually, and the grinding face is parallel with first plane all the time, and when grinding to a certain degree, the grinding face can grind the test position that a plurality of PCB function boards await measuring the louvre simultaneously, and a grinding technology can obtain the PCB function board that the multi-disc was awaited measuring, can improve the efficiency that obtains the PCB function board that awaits measuring, effectively improves the efficiency of the microtome experiment to a plurality of PCB function boards that await measuring.

The utility model provides a pair of microtome pre-installation module, the operator prolongs a plurality of PCB function boards and predetermines direction parallel arrangement, and utilize the locating lever to pass a plurality of locating holes that prolong the PCB function board of predetermineeing the direction and arranging in proper order, the L1 of a plurality of PCB function boards equals and L2 equals, thereby guarantee the reference limit of a plurality of PCB function boards in the first plane, a plurality of PCB function boards that realize microtome pre-installation module simultaneously have the plane at one row louvre center place to be on a parallel with the first plane. The operator can expose one row of louvre of a plurality of PCB function boards through once grinding, effectively improves a plurality of PCB function boards that await measuring and carries out the efficiency of microtomy experiment.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and 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 contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic view of a PCB panel provided by the present invention;

fig. 2 is a schematic view of a first easily detachable structure provided by the present invention;

fig. 3 is a schematic view of a second easily detachable structure provided by the present invention;

fig. 4 is a schematic structural diagram of a microtome section pre-assembly module provided by the present invention.

The figures are labeled as follows:

1-PCB jointed board; 11-a PCB functional board; 111-locating holes; 112-heat dissipation holes; 113-a reference edge; 12-a transition plate; 13-hollowing out the holes; 14-stamp hole; 15-first incision; 16-a second incision;

2-microtome section preassemble module; 21-fixing block; 22-positioning rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the structures related to the present invention are shown in the drawings, not the entire structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be structurally related or interoperable between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

As shown in fig. 1, the utility model provides a PCB makeup 1 includes a plurality of PCB function boards 11, sets up a plurality of louvres 112 that are the intensive arranging of matrix form on the PCB function board 11, and louvre 112 is 0.25mm ~ 0.35 mm's little metallized hole, and louvre 112 is used for electrically conducting and the heat dissipation. Different heat-resisting capacities of the PCB function board 11 will be caused by different types of heat dissipation hole 112 arrangement modes, different heat dissipation hole 112 apertures and different heat dissipation hole 112 hole pitches, and an operator needs to perform a micro-slicing experiment on the PCB function board 11 with different types of heat dissipation hole 112 arrangement modes, different heat dissipation hole 112 apertures and different heat dissipation hole 112 hole pitches, so as to obtain respective heat-resisting capacities of the PCB function board 11 with different types of heat dissipation hole 112 arrangement modes, different heat dissipation hole 112 apertures and different heat dissipation hole 112 hole pitches. An operator firstly separates and samples a plurality of PCB functional boards 11 on one PCB jointed board 1, then seals the single PCB functional board 11 with glue, and then carries out procedures of grinding, polishing, corrosion and the like on the single PCB functional board 11 at the position to be measured of the heat dissipation hole 112 to manufacture a micro-slicing module, and the operator utilizes an instrument to analyze different micro-slicing modules and produces the PCB functional boards 11 with better heat resistance in batches.

However, the conventional testing method is to test each type of PCB function board 11 individually, so that when the number of PCB function boards 11 to be tested is large, the workload of an operator is increased, and the testing efficiency is low.

In order to solve the above problem, as shown in fig. 1, the PCB function board 11 includes a reference edge 113, a positioning hole 111 and a plurality of heat dissipation holes 112, the positioning hole 111 is opened on the PCB function board 11, the shape and size of the positioning hole 111 on each PCB function board 11 are the same, a connection line distance between the reference edge 113 and the center of the positioning hole 111 is L1, the plurality of heat dissipation holes 112 are arranged in an array, each row of heat dissipation holes 112 is parallel to the reference edge 113, a connection line distance between the reference edge 113 and the circle center of one row of heat dissipation holes 112 is L2, L1 of different PCB function boards 11 tested in the same group is equal, and L2 is equal. Through tearing into a plurality of PCB function boards 11 with PCB makeup 1, with a plurality of PCB function boards 11 along X direction (predetermine direction) parallel arrangement, pass a set of a plurality of locating holes 111 of arranging along the X direction with locating lever 22 in proper order to make a plurality of PCB function boards 11 reference limit 113 in same first plane, because the L1 of different PCB function boards 11 equals and L2 equals, so the centre of a circle line of a row of louvre 12 on different PCB function boards 11 is arranged along X direction parallel. The operator uses first plane as grinding initial position, from top to bottom grinds PCB function board 11 gradually, and the grinding face is parallel with first plane all the time, when grinding to a certain extent, the grinding face can grind the test position that a plurality of PCB function boards 11 await measuring louvre 12 simultaneously, and a grinding technology can obtain the PCB function board 11 that the multi-disc awaits measuring was awaited measuring, can improve the efficiency that obtains the PCB function board 11 that awaits measuring, effectively improves the efficiency to the microtome experiment of a plurality of PCB function boards 11 that await measuring.

As shown in fig. 1, the PCB panel 1 includes a plurality of PCB functional board test groups, L1 of different PCB functional boards 11 in the same PCB functional board test group are equal and L2 are equal, but L1 of different PCB functional boards 11 tested in different groups may be the same or different, and L2 may be the same or different, so that an operator may adjust the PCB panel 1 according to actual requirements, thereby improving the flexibility of the design of the PCB panel 1.

Preferably, as shown in fig. 1, the width of the transition plate 12 is 14% to 20% of the width of the PCB function board 11. The width of the transition plate 12 is increased, so that the operator can easily apply force to the transition plate 12 or the PCB function board 11 in the process of manually separating the transition plate 12 and the PCB function board 11.

Preferably, as shown in fig. 1, the transition plate 12 is disposed at a middle position of an edge of the PCB function board 11, and a hollow hole 13 is formed between two adjacent PCB function boards 11, so that an operator can directly break the two adjacent PCB function boards by hand, thereby reducing the time for slicing and sampling.

Preferably, as shown in fig. 1, the positioning holes 111 may be circular holes, two positioning holes 111 are provided, a line connecting centers of the two positioning holes 111 is parallel to the reference edge 113, a distance between centers of the two positioning holes 111 is L3, and L3 of different PCB function boards 11 tested in the same group are equal. Through every locating hole 111 passing corresponding locating lever 22, two locating levers 22 can avoid the rotation of PCB function board 11 relative locating lever 22, guarantee the better depth of parallelism of a plurality of benchmark limits 113. The equipment for processing the round hole is simple in shape and convenient for processing and manufacturing the round hole.

As a preferred scheme, the positioning hole 111 can be a square hole, the positioning rod 22 and the positioning hole 111 have the same shape and size, and each PCB function board 11 is only provided with one square hole, so that the positioning rod 22 can be prevented from rotating relative to the positioning hole 111, the structure is simple, the processing is convenient, and the better strength and hardness of the positioning rod 11 can be ensured.

Preferably, the diameter of the positioning hole 111 is 0.2mm to 0.5mm larger than that of the positioning rod 22, so that the positioning rod 22 can smoothly pass through the positioning hole 111. If the clearance between the positioning rod 22 and the hole wall in the positioning hole 111 is large, a large movement margin exists after the positioning rod 22 passes through the positioning holes 111, and therefore the accuracy of the reference edges 113 in the same plane is affected. In order to avoid too large gap of the positioning rod 22 in the positioning hole 111, the gap between the positioning hole 111 and the positioning rod 22 is controlled not to exceed 0.5mm, which is beneficial to improving the precision of the plurality of reference edges 113 in the same plane, thereby improving the detection precision of the microtome detection experiment and reducing errors.

Because one of the heat resistance tests is a floating tin test, if the hole wall of the positioning hole 111 is metalized, the positioning hole 111 will be tin-coated, which will cause the positioning hole 111 to block the hole and lose the positioning function. In order to solve the above problem, the positioning hole 111 of the present embodiment is designed as a non-metallized hole, i.e. the hole wall is not coated with metal such as copper, so as to prevent tin from being coated on the positioning hole 111,

preferably, the distance L2 is reduced as much as possible by setting L2 to 2mm to 10mm, thereby reducing the polishing workload as much as possible and improving the work efficiency.

Preferably, as shown in fig. 1, the PCB jointed board 1 further includes a transition plate 12, two adjacent PCB functional boards 11 are connected by the transition plate 12, and an easy-to-detach structure is disposed at a position where the transition plate 12 is connected with the PCB functional board 11. Through easy detachable structure, the operator is manual just can easily be with 11 splits of two adjacent PCB function boards, need not reduce PCB function board 11's sample time, improves work efficiency in order to use the cutting machine split. In addition, adopt the cutting machine split, there is the risk of destroying locating hole 111, through the easy detachable structure of design, this risk has effectually been avoided.

Preferably, as shown in fig. 1, the detachable structure includes a plurality of stamp holes 14, the plurality of stamp holes 14 are formed at an edge of the transition plate 12 connected to the PCB, and the plurality of stamp holes 14 are arranged at intervals along the edge of the transition plate 12 connected to the PCB. The stamp hole 14 has a simple structure and is convenient to manufacture, and the PCB function board 11 and the cab apron 12 are easy to split.

In other embodiments, as shown in fig. 2, a first notch 15 is formed on the upper end surface of the position where the transition plate 12 is connected to the PCB function board 11, the first notch 15 extends along the edge of the transition plate 12, and the cross section of the notch is V-shaped. The width of the cross section of the first slit 15 is gradually reduced from the surface of the transition plate 12 to the inside of the transition plate 12 in the thickness direction of the transition plate 12. The design of the V-shaped first cut 15 facilitates manual splitting of the PCB function board 11, saves time and improves work efficiency.

In other embodiments, the lower end surface of the position where the transition plate 12 is connected with the PCB function board 11 is provided with the first notch 15, the first notch 15 extends along the edge of the transition plate 12, the cross section of the first notch 15 is V-shaped, and along the thickness direction of the transition plate 12, the width of the cross section of the first notch 15 is gradually reduced from the surface of the transition plate 12 to the inside of the transition plate 12, so that the effects of conveniently and manually disassembling the PCB function board 11, saving time and improving the working efficiency can be achieved.

In other embodiments, as shown in fig. 3, a first notch 15 and a second notch 16 may be simultaneously disposed on both the upper end surface and the lower end surface of the position where the transition plate 12 is connected to the PCB function board 11, and compared with the arrangement of one first notch 15, an operator can achieve better and faster separation of the transition plate 12 and the PCB function board 11 through the two notch structures of the first notch 15 and the second notch 16 by the easy-to-detach structure.

Example two

As shown in fig. 4, the embodiment provides a micro-chip pre-assembly module 2, where the micro-chip pre-assembly module 2 includes a positioning rod 22, a fixing block 21, and a plurality of PCB function boards 11 in the first embodiment, the plurality of PCB function boards 11 are arranged in parallel along the X direction, the positioning rod 22 sequentially passes through positioning holes 111 on the plurality of PCB function boards 11 along the X direction, so that reference edges 113 of the plurality of PCB function boards 11 are in a first plane, and the fixing block 22 fixes one ends of the plurality of PCB function boards 11, where the positioning rod 22 is not arranged. Since the L1 of the PCB function boards 11 are equal to the L2, the row of heat dissipation holes 112 on the PCB function boards 11 to be tested are maintained in the same plane. The operator begins the grinding with the primary importance on first plane, grinds to a certain extent, and every PCB function board 11 of microtome pre-installation module 2 will expose the central point that louvre 112 put simultaneously to reach only through once grinding, obtain a plurality of effects of waiting to detect PCB function board 11, can effectively improve PCB function board 11 detection efficiency.

As shown in fig. 1 to 4, to illustrate the scheme of the present invention, the specific working process is as follows:

dividing the PCB jointed board 1 of the first embodiment into a plurality of PCB functional boards 11, and arranging the PCB functional boards 11 in parallel along a preset direction; then, the positioning rod 22 sequentially penetrates through the corresponding positioning holes 111 on the plurality of PCB functional boards 11, so that the reference edges 113 of the plurality of PCB functional boards 11 are in a first plane; and grinding the plurality of PCB function boards 11 by using the first plane as a reference surface to expose the heat dissipation holes 112 to be tested of the plurality of PCB function boards 11.

The operator uses first plane as grinding initial position, from top to bottom grinds PCB function board 11 gradually, and the grinding face is parallel with first plane all the time, when grinding to a certain extent, the grinding face can grind the test position that a plurality of PCB function boards 11 await measuring louvre 12 simultaneously, and a grinding technology can obtain the PCB function board 11 that the multi-disc awaits measuring was awaited measuring, can improve the efficiency that obtains the PCB function board 11 that awaits measuring, effectively improves the efficiency to the microtome experiment of a plurality of PCB function boards 11 that await measuring.

A plurality of PCB function boards 11 are only fixed through locating lever 22, then are carrying out PCB function board 11 and grind the in-process, and PCB function board 11 is very easy relative locating lever 22 motion, can't obtain the higher face of waiting to detect of precision, leads to the validity of testing result to hang down.

In order to solve the above problem, as shown in fig. 4, the method for manufacturing a micro-dicing module further includes: the side remote from the positioning rod 22 is placed in a mould, in which glue is poured to form the fixing block 21, so as to obtain the micro-section pre-assembly module 2. By the method, the PCB function board 11 can be prevented from moving relative to the positioning rod 22, a surface to be detected with high precision can be obtained, and the validity of a detection result is ensured.

It is noted that the basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (10)

1. A PCB panel, comprising a plurality of PCB function boards (11), wherein the PCB function boards (11) comprise:

a reference edge (113);

the positioning holes (111) are formed in the PCB functional boards (11), the shapes and the sizes of the positioning holes (111) of the PCB functional boards (11) are the same, and the distance between the reference edge (113) and the center of each positioning hole (111) is L1; and

the radiating holes (112) are arranged in an array mode, each row of radiating holes (112) is parallel to the reference edge (113), the connecting line distance between the reference edge (113) and the circle center of one row of the radiating holes (112) is L2, and L1 of the PCB functional boards (11) tested in the same group is equal and L2 of the PCB functional boards are equal.

2. The PCB jigsaw according to claim 1, wherein the PCB jigsaw further comprises a transition plate (12), two adjacent PCB functional boards (11) are connected through the transition plate (12), and a detachable structure is arranged at the connecting position of the transition plate (12) and the PCB functional boards (11).

3. The PCB panel of claim 2, wherein the easy-to-disassemble structure comprises:

the stamp holes (14) are formed in the edge, connected with the PCB (11), of the transition plate (12), and the stamp holes (14) are arranged at intervals along the edge, connected with the PCB (11), of the transition plate (12).

4. The PCB panel of claim 2, wherein the easy-to-disassemble structure comprises:

the PCB comprises a notch, wherein the notch is arranged on the upper end face and/or the lower end face of the position where the transition plate (12) is connected with the PCB functional plate (11), the notch extends along the edge where the transition plate (12) is connected with the PCB functional plate (11), the cross section of the notch is V-shaped, and the width of the cross section of the notch is gradually reduced from the surface of the transition plate (12) to the inside of the transition plate (12) along the thickness direction of the transition plate (12).

5. PCB panel according to claim 2, characterized in that the width of the transition plate (12) is 14% to 20% of the width of the PCB functional board (11).

6. PCB panel according to claim 2, characterized in that the transition plate (12) is arranged in the middle of the edge of the PCB functional board (11), and a hollow hole (13) is formed between two adjacent PCB functional boards (11).

7. PCB panel as in any of claims 1 to 6, wherein there are two positioning holes (111), the connecting line of the centers of two positioning holes (111) is parallel to the reference edge (113), the distance between the centers of two positioning holes (111) is L3, and the L3 of different PCB functional boards (11) tested in the same group is equal.

8. PCB panel as in any of claims 1-6, wherein the positioning holes (111) are round or square holes.

9. PCB panel according to claim 7, characterized in that the distance L2 between the reference edge (113) and the line connecting the centers of the heat dissipation holes (112) in one row is 2mm to 10 mm.

10. A microtome sectionable preassembly module, comprising:

a plurality of PCB functional boards (11) obtained by splitting the PCB jointed board as defined in any one of claims 1-9, wherein the plurality of PCB functional boards (11) are arranged in parallel along a preset direction; and

the positioning rod (22) sequentially penetrates through the positioning holes (111) which are formed in the PCB functional boards (11) and arranged along the preset direction, so that the reference edges (113) of the PCB functional boards (11) are in the same plane; and

and the fixing block (21) is used for fixing one end of the PCB functional board (11) which is not provided with the positioning rod (22).

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