Post-processing auxiliary wire passing device of DBC small board

Abstract

The utility model relates to the technical field of DBC substrate preparation, in particular to a post-processing auxiliary wire passing device for a DBC small plate, which comprises a fixing plate, a clamping groove capable of accommodating the DBC small plate is arranged on the fixing plate, a plurality of bulges capable of limiting the DBC small plate are arranged on two side walls of the clamping groove, and the DBC small plate is arranged on the clamping groove. The protrusions can abut against the top face and the bottom face of the DBC small plate respectively, and a drainage groove is further formed in the bottom of the clamping groove. When the post-processing auxiliary line passing device of the DBC small board assists the DBC small board to carry out post-processing OSP line passing, liquid on the DBC small board can be discharged through vibration in the advancing process of the device, water drops or liquid medicine and the like are prevented from remaining on the DBC small board to form water marks and liquid medicine marks, and then the problem of more serious local oxidation or board stacking of the small board is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of DBC substrate preparation, and more specifically, to a post-processing auxiliary wiring device for DBC small boards. Background Technology

[0002] DBC (Ceramic Copper Clad Laminate) substrates possess excellent thermal conductivity, insulation, and mechanical properties, making them widely used in power electronics, electronic packaging, hybrid microelectronics, and multi-chip modules. The fabrication process of DBC substrates includes pre-etching treatment, etching, stripping, and OSP (Optically Solved Plate) post-processing. All these processes involve horizontal substrate transfer. OSP post-processing cleans the board surface and generates an OSP protective layer. After cutting, the substrate size becomes smaller, and these smaller boards cannot pass through the OSP post-processing machine normally. If these smaller boards are directly passed through the production line, they are prone to falling off the line or even getting stuck, causing a jam.

[0003] To ensure smooth routing of the small board, the current methods include either using tape to attach it to a stencil and then using the stencil to pull it across the horizontal line, or using tape to fix the small board to a stencil and then using the stencil to pull it across the horizontal line. However, these methods often leave watermarks or chemical residue on the small board, leading to issues such as localized oxidation or board stacking. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies where water stains or chemical stains are easily left on the DBC board when using a glue plate or mesh plate for auxiliary wiring. This invention provides a post-processing auxiliary wiring device for DBC boards. When using this device to assist in wiring the DBC board, no water stains or chemical stains will remain on the board, thus avoiding problems such as local oxidation or board stacking.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A post-processing auxiliary cable routing device for a DBC (Digital Curve Component) board is provided, including a fixing plate. The fixing plate has a slot for accommodating the DBC board. Each of the two side walls of the slot has a protrusion for limiting the movement of the DBC board. Several protrusions are provided, each abutting against the top and bottom surfaces of the DBC board. A drainage groove is also provided at the bottom of the slot. The size of the slot is slightly larger than the size of the DBC board, typically 0.5mm-2mm larger.

[0007] This utility model discloses a post-processing auxiliary line-passing device for DBC small boards. During use, the DBC small board is inserted into a slot on a fixing plate. A gap exists between the side wall of the DBC small board and the side wall of the slot. The vibration generated during the OSP process causes residual water droplets or chemicals on the DBC small board to be vibrated into the gap between the DBC small board and the slot. The liquid flows away along the gap, thus dislodging any remaining liquid from the surface of the DBC small board. Protrusions on both side walls of the slot, after contacting the DBC small board, limit its movement and prevent it from falling out. Specifically, each side wall of the slot has two layers of protrusions that abut against the top and bottom surfaces of the DBC small board, respectively, thus positioning the DBC small board within the slot and preventing it from falling out.

[0008] The post-processing auxiliary line-passing device of this utility model can discharge liquid from the DBC board through vibration during the OSP line-passing process of the DBC board, thus avoiding water droplets or chemical residues on the DBC board and forming water marks or chemical marks, thereby avoiding more serious local oxidation or board stacking problems.

[0009] Furthermore, the fixing plate includes a top plate, a middle plate, and a bottom plate connected in sequence, and the slot includes a first slot on the top plate, a second slot on the middle plate, and a third slot on the bottom plate, wherein the two end faces of the second slot coincide with the end faces of the first slot and the third slot, respectively.

[0010] The protrusion includes a first protrusion that can abut against the top surface of the DBC board and a second protrusion that can abut against the bottom surface of the DBC board. The first protrusion is located on the two side walls of the first slot, and the second protrusion is located on the two side walls of the third slot. The second slot can accommodate the DBC board.

[0011] The drainage channel includes a first drainage channel on the top plate, a second drainage channel on the middle plate, and a third drainage channel on the bottom plate. The two end faces of the second drainage channel coincide with the end faces of the first drainage channel and the third drainage channel, respectively.

[0012] The fixing plate includes a top plate, a middle plate, and a bottom plate. The first protrusion and the second protrusion are located on the top plate and the bottom plate, respectively, which makes it easier to process the fixing plate, the slot, and the protrusion.

[0013] Furthermore, the side surface of the first protrusion is conical, and the bottom surface of the first protrusion is smaller than the top surface of the first protrusion; the side surface of the second protrusion is also conical, and the top surface of the second protrusion is smaller than the bottom surface of the second protrusion. The conical side surfaces of both the first and second protrusions ensure the connection strength between the first and second protrusions and the top and bottom surfaces, as well as the support provided by the protrusions to the DBC plate, while reducing the contact area between the protrusions and the DBC plate, thus preventing liquid from remaining between the DBC plate and the protrusions. Additionally, the conical side surfaces of both the first and second protrusions also facilitate material feeding.

[0014] Furthermore, the bottom surface of the first slot is also provided with a third protrusion, which is located on both sides of the first drainage groove, and the shape of the third protrusion is the same as that of the first protrusion.

[0015] The bottom surface of the third slot is also provided with a fourth protrusion, which is located on both sides of the third drainage groove. The shape of the fourth protrusion is the same as that of the second protrusion.

[0016] The third and fourth protrusions allow the DBC board to be positioned within the slots by limiting its movement at the end faces of the first and second slots, making the DBC board more stable within the slots.

[0017] Furthermore, in the vertical direction, the projections of the first protrusion and the second protrusion coincide, and the projections of the third protrusion and the fourth protrusion coincide. The coincidence of the projections of the first and second protrusions, meaning they are symmetrically arranged on both sides of the DBC board, improves the support and positioning of the DBC board, and also facilitates insertion of the DBC board into the second slot, avoiding contact between the DBC board and the first and second protrusions during insertion. The beneficial effects of the coincidence of the projections of the third and fourth protrusions are the same as those of the coincidence of the projections of the first and second protrusions.

[0018] Furthermore, it also includes alignment members. Alignment holes are provided on the top plate, the middle plate, and the bottom plate, and the alignment members can pass through these alignment holes sequentially. The alignment holes not only facilitate the alignment of the top plate, middle plate, and bottom plate during installation, but also facilitate the fixing of the three plates using the alignment members. The alignment members can be bolts.

[0019] Furthermore, in the vertical direction, the bottom of the slot is inclined downwards. This downward inclination means that when the DBC board is inserted into the slot, the end of the DBC board furthest from the slot opening is lower than the end closest to the opening. This downward inclination after the DBC board is inserted allows liquid on the DBC board to flow away under its own weight, preventing liquid accumulation. Similarly, the inclination direction of the slot can be modified so that the entire slot is inclined towards one of its side walls. This allows the DBC board to tilt to one side after insertion, allowing liquid to flow away. However, compared to a side inclination, a bottom-inclination slot further prevents the DBC board from falling out after insertion due to its own weight, and the side inclination makes insertion more difficult.

[0020] Furthermore, after the slot is tilted, the acute angle between the axis of the slot and the horizontal plane is 1°-5°. If the tilt angle of the slot is too large, it will increase the thickness of the fixing plate; if the tilt angle of the slot is too small, the guiding effect of the water flow will be insignificant. Experiments have shown that the optimal tilt angle of the slot is between 1° and 5°, and the specific tilt angle can be adjusted according to the size of the slot.

[0021] Furthermore, there are multiple slots, each located on one side of the fixing plate. The multiple slots on the fixing plate allow for simultaneous auxiliary wiring of more DBC boards, further improving the wiring efficiency of the DBC boards.

[0022] Furthermore, in the horizontal direction, the cross-section of the protrusion is arc-shaped. The arc-shaped cross-section of the protrusion in the horizontal direction, meaning the sidewalls of the protrusion are arc-shaped, allows the protrusion to support the DBC board while further reducing the contact area between the protrusion and the DBC board, and also prevents sharp corners on the protrusion from scratching the user.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] The post-processing auxiliary line-passing device of this utility model can discharge liquid from the DBC board through vibration during the OSP line-passing process of the DBC board, thus avoiding water droplets or chemical residues on the DBC board and forming water marks or chemical marks, thereby avoiding more serious local oxidation or board stacking problems. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a post-processing auxiliary cable routing device for a DBC small board;

[0026] Figure 2This is a schematic diagram of the usage state of a post-processing auxiliary cable routing device for a DBC board. The arrows in the diagram indicate the insertion direction of the DBC board.

[0027] Figure 3 A schematic diagram of the top plate of a post-processing auxiliary cable routing device for a DBC small board;

[0028] Figure 4 This is a schematic diagram of the middle plate of a post-processing auxiliary cable routing device for a DBC small board;

[0029] Figure 5 A schematic diagram of the base plate of a post-processing auxiliary cable routing device for a DBC small board;

[0030] Figure 6 A post-processing auxiliary cable routing device for a DBC small board. Figure 1 Sectional view of part A in the image.

[0031] In the attached diagram: 1. Fixing plate; 2. Slot; 3. Protrusion; 4. Drainage groove; 101. Top plate; 102. Middle plate; 103. Bottom plate; 201. First slot; 202. Second slot; 203. Third slot; 301. First protrusion; 302. Second protrusion; 401. First drainage groove; 402. Second drainage groove; 403. Third drainage groove; 5. Alignment component; 6. Alignment hole; 7. DBC small plate. Detailed Implementation

[0032] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0033] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] Example 1

[0035] This embodiment is a first embodiment of a post-processing auxiliary cable routing device for a DBC small board, such as... Figure 1 and Figure 2 As shown, the device includes a fixing plate 1, which has a slot 2 for accommodating a DBC small board 7. Each of the two side walls of the slot 2 has a protrusion 3 for limiting the position of the DBC small board 7. Several protrusions 3 are present, and each protrusion 3 can abut against the top and bottom surfaces of the DBC small board 7. A drainage groove 4 is also provided at the bottom of the slot 2. The size of the slot 2 is slightly larger than the size of the DBC small board 7, generally by 0.5mm-2mm.

[0036] Specifically, the fixing plate 1 includes a top plate 101, a middle plate 102 and a bottom plate 103 connected in sequence, and the slot 2 includes a first slot 201 on the top plate 101, a second slot 202 on the middle plate 102 and a third slot 203 on the bottom plate 103. The two end faces of the second slot 202 coincide with the end faces of the first slot 201 and the third slot 203, respectively.

[0037] The protrusion 3 includes a first protrusion 301 that can abut against the top surface of the DBC small board 7 and a second protrusion 302 that can abut against the bottom surface of the DBC small board 7. The first protrusion 301 is located on the two side walls of the first slot 201, and the second protrusion 302 is located on the two side walls of the third slot 203. The second slot 202 can accommodate the DBC small board 7.

[0038] The drainage channel 4 includes a first drainage channel 401 on the top plate 101, a second drainage channel 402 on the middle plate 102, and a third drainage channel 403 on the bottom plate 103. The two end faces of the second drainage channel 402 coincide with the end faces of the first drainage channel 401 and the third drainage channel 403, respectively.

[0039] Specifically, it also includes alignment component 5. Alignment holes 6 are provided on the top plate 101, middle plate 102 and bottom plate 103. Alignment component 5 can pass through alignment holes 6 on the top plate 101, middle plate 102 and bottom plate 103 in sequence.

[0040] The working principle or process of this embodiment is as follows:

[0041] During use, the alignment member 5 passes through the alignment holes 6 on the top plate 101, middle plate 102, and bottom plate 103 in sequence to fix the three together, completing the assembly of the device. After the device is assembled, the DBC small plate 7 is inserted into the second slot 202 on the middle plate 102. At this time, there is a gap between the side wall of the DBC small plate 7 and the side wall of the second slot 202. The vibration generated by the device during the OSP process can vibrate the residual water droplets or liquids such as medicine on the DBC small plate 7 to the gap between the DBC small plate 7 and the slot 2. After being vibrated to the gap between the DBC small plate 7 and the slot 2, the liquid will flow away along the gap, thereby splashing out the residual liquid on the surface of the DBC small plate 7. The protrusions 3 on the top plate 101 and the bottom plate 103 limit the DBC small plate 7 after abutting against it, preventing the DBC small plate 7 from falling out of the slot 2.

[0042] The beneficial effects of this embodiment are as follows:

[0043] In this embodiment, the post-processing auxiliary line-passing device for the DBC board 7 can discharge liquid from the DBC board 7 through vibration during the forward movement of the device, thus preventing water droplets or chemicals from remaining on the DBC board 7 and forming watermarks or chemical marks, thereby avoiding more serious local oxidation or board stacking problems on the board.

[0044] The fixing plate 1 includes a top plate 101, a middle plate 102, and a bottom plate 103. The first protrusion 301 and the second protrusion 302 are located on the top plate 101 and the bottom plate 103, respectively, which facilitates the processing of the fixing plate 1, the slot 2, and the protrusion 3. The alignment hole 6 not only facilitates the alignment of the top plate 101, the middle plate 102, and the bottom plate 103 during installation, but also facilitates the fixing of the top plate 101, the middle plate 102, and the bottom plate 103 by means of the alignment member 5.

[0045] Example 2

[0046] This embodiment is a second embodiment of a post-processing auxiliary cable routing device for a DBC small board, such as... Figures 1-5 As shown, this embodiment further defines the protrusion 3 based on embodiment one.

[0047] Specifically, the side of the first protrusion 301 is conical, and the bottom surface of the first protrusion 301 is smaller than the top surface of the first protrusion 301; the side of the second protrusion 302 is also conical, and the top surface of the second protrusion 302 is smaller than the bottom surface of the second protrusion 302.

[0048] Specifically, the bottom surface of the first slot 201 is also provided with a third protrusion 303, which is located on both sides of the first drainage groove 401, and the shape of the third protrusion 303 is the same as that of the first protrusion 301; the bottom surface of the third slot 203 is also provided with a fourth protrusion 304, which is located on both sides of the third drainage groove 403, and the shape of the fourth protrusion 304 is the same as that of the second protrusion 302.

[0049] Specifically, in the vertical direction, the projections of the first protrusion 301 and the second protrusion 302 coincide, and the projections of the third protrusion 303 and the fourth protrusion 304 coincide. In the horizontal direction, the cross-section of protrusion 3 is arc-shaped.

[0050] The beneficial effects of this embodiment are as follows:

[0051] The sides of the first protrusion 301 and the second protrusion 302 are both tapered. This ensures the connection strength between the first protrusion 301 and the second protrusion 302 and the top plate 101 and bottom surface, as well as the support provided by the protrusion 3 to the DBC small plate 7, while reducing the contact area between the protrusion 3 and the DBC small plate 7, preventing liquid from remaining between the DBC small plate 7 and the protrusion 3. Furthermore, the tapered sides of the first protrusion 301 and the second protrusion 302 also facilitate material feeding. The third protrusion 303 and the fourth protrusion 304 allow the end faces of the first slot 201 and the second slot 202 to also limit the DBC small plate 7, making the DBC small plate 7 more stable within the slot 2. The projections of the two vertically opposite protrusions 3 overlap, providing better support and limiting for the DBC small plate 7, and also making it easier for the DBC small plate 7 to be inserted into the second slot 202. The cross-section of the protrusion 3 in the horizontal direction is arc-shaped, that is, the side wall of the protrusion 3 is arc-shaped. This allows the protrusion 3 to support the DBC board 7 while further reducing the contact area between the protrusion 3 and the DBC board 7, and also prevents the sharp corners on the protrusion 3 from scratching the user.

[0052] Example 3

[0053] This embodiment is the third embodiment of a post-processing auxiliary trace-passing device for a DBC small board. This embodiment is based on embodiments one and two, such as... Figure 6 As shown, the structure of the card slot 2 is further defined.

[0054] Specifically, in the vertical direction, the bottom of the slot 2 slopes downwards. After the slot 2 is tilted, the acute angle between the axis of the slot 2 and the horizontal plane is 1°-5°. There are multiple slots 2, which are located on both sides of the fixing plate 1.

[0055] The beneficial effects of this implementation are as follows:

[0056] The bottom of the slot 2 slopes downwards, causing the DBC board 7 to tilt downwards after being inserted into the slot 2. This allows liquid on the DBC board 7 to flow away due to its own gravity, further preventing liquid accumulation on the DBC board 7. Simultaneously, the downward slope of the slot 2 also prevents the DBC board 7 from falling out of the slot 2 due to its own weight. Multiple slots 2 on the fixing plate 1 allow for simultaneous auxiliary wiring of more DBC boards 7, further improving the wiring efficiency of the boards.

[0057] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A post-processing auxiliary cable routing device for a DBC small board, characterized in that, The device includes a fixing plate (1), which has a slot (2) for accommodating a DBC board (7). The two side walls of the slot (2) are provided with protrusions (3) for limiting the DBC board (7). There are several protrusions (3), which can abut against the top and bottom surfaces of the DBC board (7) respectively. The bottom of the slot (2) is also provided with a drainage groove (4).

2. The post-processing auxiliary wiring device for a DBC small board according to claim 1, characterized in that, The fixing plate (1) includes a top plate (101), a middle plate (102), and a bottom plate (103) connected in sequence; The slot (2) includes a first slot (201) on the top plate (101), a second slot (202) on the middle plate (102) and a third slot (203) on the bottom plate (103), wherein the two end faces of the second slot (202) coincide with the end faces of the first slot (201) and the third slot (203) respectively; The protrusion (3) includes a first protrusion (301) that can abut against the top surface of the DBC board and a second protrusion (302) that can abut against the bottom surface of the DBC board (7). The first protrusion (301) is located on the two side walls of the first slot (201), and the second protrusion (302) is located on the two side walls of the third slot (203). The second slot (202) can accommodate the DBC board (7). The drainage channel (4) includes a first drainage channel (401) on the top plate (101), a second drainage channel (402) on the middle plate (102) and a third drainage channel (403) on the bottom plate (103), wherein the two end faces of the second drainage channel (402) coincide with the end faces of the first drainage channel (401) and the third drainage channel (403) respectively.

3. The post-processing auxiliary wiring device for a DBC small board according to claim 2, characterized in that, The side of the first protrusion (301) is conical, and the bottom surface of the first protrusion (301) is smaller than the top surface of the first protrusion (301); the side of the second protrusion (302) is also conical, and the top surface of the second protrusion (302) is smaller than the bottom surface of the second protrusion (302).

4. The post-processing auxiliary wiring device for a DBC small board according to claim 3, characterized in that, The bottom surface of the first slot (201) is also provided with a third protrusion (303), which is located on both sides of the first drainage groove (401), and the shape of the third protrusion (303) is the same as that of the first protrusion (301). The bottom surface of the third slot (203) is also provided with a fourth protrusion (304), which is located on both sides of the third drainage channel (403). The shape of the fourth protrusion (304) is the same as that of the second protrusion (302).

5. The post-processing auxiliary wiring device for a DBC small board according to claim 4, characterized in that, In the vertical direction, the projection of the first protrusion (301) coincides with the projection of the second protrusion (302), and the projection of the third protrusion (303) coincides with the projection of the fourth protrusion (304).

6. The post-processing auxiliary wiring device for a DBC small board according to claim 2, characterized in that, It also includes an alignment member (5), and the top plate (101), the middle plate (102) and the bottom plate (103) are all provided with alignment holes (6). The alignment member (5) can pass through the alignment holes (6) on the top plate (101), the middle plate (102) and the bottom plate (103) in sequence.

7. The post-processing auxiliary wiring device for a DBC small board according to claim 1, characterized in that, In the vertical direction, the bottom of the slot (2) is inclined downward.

8. The post-processing auxiliary wiring device for a DBC small board according to claim 7, characterized in that, When the slot (2) is tilted, the acute angle between the axis of the slot (2) and the horizontal plane is 1°-5°.

9. The post-processing auxiliary wiring device for a DBC small board according to claim 8, characterized in that, There are several slots (2), and the slots (2) are located on both sides of the fixing plate (1).

10. The post-processing auxiliary wiring device for a DBC small board according to claim 1, characterized in that, In the horizontal direction, the cross-section of the protrusion (3) is arc-shaped.

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