Moisture-proof device for double-sided multi-layer circuit board

Abstract

The utility model relates to the technical field of circuit board moistureproof placement devices, in particular to a double-sided multilayer circuit board moistureproof device, which comprises a box body, a plurality of sliding seats fixedly connected onto the box body, a sliding frame slidably connected onto the sliding seats, a placement structure arranged on the sliding frame, the placement structure comprises sliding blocks and first knobs, the sliding blocks are slidably connected onto the sliding frame, and the first knobs are arranged on the sliding blocks. The sliding blocks are in threaded connection with first rotary knobs, a plurality of first sliding grooves are formed in the two sides of the sliding frame correspondingly, the sliding blocks are slidably connected into the first sliding grooves, the sliding blocks are fixedly connected with supporting plates, the supporting plates are slidably connected with pressing plates, the supporting plates are in threaded connection with second rotary knobs, and the bottom ends of the second rotary knobs are rotationally connected with the pressing plates. A dehumidification structure is arranged on the box body, and a clamping structure is arranged on the sliding frame; the drying of the surface of the double-sided multi-layer circuit board can be guaranteed in the placing process of the double-sided multi-layer circuit board, meanwhile, the circuit board can be fixed, damage caused by collision between the circuit board and the side wall of the box body is avoided, and therefore the use safety is effectively improved.

Description

Technical Field

[0001] The utility model relates to a moisture-proof device for a circuit board, in particular to a moisture-proof device for a double-sided multi-layer circuit board, and belongs to the technical field of moisture-proof placement devices for circuit boards. Background Art

[0002] A double-sided board has a dielectric layer in the middle and routing layers on both sides. A multi-layer board has multiple routing layers, with a dielectric layer between every two layers. The dielectric layer can be made very thin. A multi-layer circuit board has at least three conductive layers, two of which are on the outer surface, and the remaining layer is synthesized in an insulating board. The electrical connection between them is usually achieved through plated through holes on the cross section of the circuit board. Double-sided multi-layer circuit boards may need to be placed for a long time after production is completed, and are generally placed in boxes.

[0003] However, placing the circuit board in a box not only has a poor moisture-proof effect, but also lacks fixation of the circuit board after placement, and there may be a gap between the circuit board and the side wall of the box. Therefore, when the box is moved or tipped over by impact, the circuit board may collide with the side wall of the box, which may easily cause damage to the circuit board and poor safety of use. Utility Model Content

[0004] The purpose of the utility model is to provide a double-sided multi-layer circuit board moisture-proof device in order to solve the above-mentioned problems, which can ensure the dryness of the surface of the double-sided multi-layer circuit board during its placement, and at the same time can fix the circuit board to avoid collision and damage between it and the side wall of the box, thereby effectively improving the safety of use.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a moisture-proof device for a double-sided multi-layer circuit board, including a box body, a plurality of sliding seats fixedly connected to the box body, a sliding rack slidably connected to the sliding seat, a placement structure provided on the sliding rack, the placement structure including a slider and a first knob, a plurality of sliders slidably connected to the sliding rack, a first knob threadedly connected to the slider, a plurality of first sliding grooves are respectively provided on both sides of the sliding rack, a plurality of sliders are slidably connected inside the first sliding groove, a support plate is fixedly connected to the slider, a pressure plate is slidably connected to the support plate, a second knob is threadedly connected to the support plate, the bottom end of the second knob is rotatably connected to the pressure plate, a dehumidification structure is provided on the box body, and a locking structure is provided on the sliding rack.

[0006] Preferably, the cross-section of the slide seat is in a “convex” shape, and the cross-section of the first slide groove is in a “convex” shape.

[0007] Preferably, the cross section of the support plate is a U-shaped structure, and the cross section of the slider is a "convex"-shaped structure.

[0008] Preferably, the locking structure includes a sliding rod and a guide groove, the sliding rack is slidably connected to the sliding rod, the sliding rod is provided with a guide groove, the sliding rack is slidably connected to a clamping block, the clamping block is fixedly connected to a guide shaft, the guide shaft extends to the interior of the guide groove and is slidably connected to the sliding rod.

[0009] Preferably, the slide seat is provided with two slots, and the bottom end of the card block is engaged with one of the slots.

[0010] Preferably, a return spring is provided inside the slide, one end of the return spring is fixedly connected to the slide rod, and the other end of the return spring is fixedly connected to the slide, the bottom end of the block cross section is a trapezoidal structure, and one end of the slide rod cross section is a T-shaped structure.

[0011] Preferably, a plurality of sealing doors are rotatably connected to the box body, and sealing gaskets are engaged with the sealing doors.

[0012] Preferably, the box body is provided with a fixed structure, the fixed structure includes a vertical rod and a second slide groove, the box body is slidably connected with vertical rods whose number is equal to the sealing door, the box body is provided with a plurality of second slide grooves, the two ends of the vertical rod are respectively slidably matched with two second slide grooves, and the vertical rod is threadedly connected with a plurality of screws.

[0013] Preferably, the end of the screw rod is fixedly connected to a rotating rod, and the cross-section of the second sliding groove is a "convex"-shaped structure.

[0014] Preferably, the dehumidification structure includes an outer frame and a filter screen, the box body is detachably connected to an outer frame with a number equal to the sealing door by a plurality of bolts, the outer frame is fixedly connected to a filter screen, one side of the outer frame is provided with a mesh frame, one side of the edge of the mesh frame is in contact with the outer frame and the other side is in contact with the box body, calcium chloride particles are provided between the filter screen and the mesh frame, and the box body is equipped with axial flow fans with a number equal to the outer frames.

[0015] The beneficial effects of the utility model are as follows: when it is necessary to place a double-sided multi-layer circuit board, the slide can be pulled out from the interior of the box body, and the slide seat plays a guiding role in the movement of the slide. After the slide is pulled out, a double-sided multi-layer circuit board can be placed between two opposite support plates, and the distance between the two support plates can be adjusted according to the actual size of the circuit board. The first knob can be turned during adjustment. When the end of the first knob is not tightly against the slide, the slide block can be pushed to slide inside the first slide groove, and the slide block will drive the support plate to move, thereby realizing the adjustment of the position of the support plate. By adjusting the position of the support plate, double-sided multi-layer circuit boards of different sizes can be placed just between the two opposite support plates, thereby effectively improving the flexibility of use. When the double-sided multi-layer circuit board is placed After the placement is completed, the second knob can be turned, and the second knob drives the pressure plate to move toward the edge of the double-sided multi-layer circuit board. When the pressure plate is in contact with the edge of the double-sided multi-layer circuit board, the second knob is stopped, and the double-sided multi-layer circuit board is fixed at this time, so as to avoid the double-sided multi-layer circuit board and the box body from colliding when the box body is hit and moved or tipped over, thereby effectively improving the safety of use. When the double-sided multi-layer circuit boards are placed between all the two opposite support plates, the slide can be pushed into the interior of the box body, and then the environment around the double-sided multi-layer circuit board can be dehumidified through the dehumidification structure, so that the double-sided multi-layer circuit board can be placed in a dry environment, effectively avoiding the double-sided multi-layer circuit board from being damaged by moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0018] Figure 3 for Figure 2 An enlarged schematic diagram of part B is shown;

[0019] Figure 4 for Figure 2 An enlarged schematic diagram of part C is shown;

[0020] Figure 5 It is a schematic diagram of the connection structure between the slide seat and the slide frame of the utility model;

[0021] Figure 6 for Figure 5 An enlarged schematic diagram of the D portion shown;

[0022] Figure 7 for Figure 5 An enlarged schematic diagram of part E is shown.

[0023] In the figure: 1. box body; 2. slide seat; 3. slide rack; 4. placement structure; 401. slider; 402. first slide slot; 403. first knob; 404. support plate; 405. second knob; 406. pressure plate; 5. positioning structure; 501. slide bar; 502. guide slot; 503. guide shaft; 504. block; 505. reset spring; 506. slot; 6. dehumidification structure; 601. outer frame; 602. filter screen; 603. screen frame; 604. calcium chloride particles; 605. axial flow fan; 7. sealing door; 8. sealing gasket; 9. fixing structure; 901. vertical rod; 902. second slide slot; 903. rotating rod; 904. screw. DETAILED DESCRIPTION

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

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a moisture-proof device for a double-sided multi-layer circuit board comprises a box body 1, a plurality of slide seats 2 are fixedly connected to the box body 1, a slide seat 3 is slidably connected to the slide seat 2, a placement structure 4 is provided on the slide frame 3, the placement structure 4 comprises a slider 401 and a first knob 403, a plurality of sliders 401 are slidably connected to the slide frame 3, a first knob 403 is threadedly connected to the slider 401, a plurality of first slide grooves 402 are respectively provided on both sides of the slide frame 3, a plurality of sliders 401 are slidably connected inside the first slide grooves 402, a support plate 404 is fixedly connected to the slider 401, a pressure plate 406 is slidably connected to the support plate 404, a second knob 405 is threadedly connected to the support plate 404, a bottom end of the second knob 405 is rotatably connected to the pressure plate 406, a dehumidification structure 6 is provided on the box body 1, and a locking structure 5 is provided on the slide frame 3.

[0026] As a technical optimization solution of the utility model, Figure 3 , Figure 4 and Figure 6As shown, the cross-section of the slide seat 2 is a "convex" shaped structure, the cross-section of the first slide groove 402 is a "convex" shaped structure, the cross-section of the support plate 404 is a U-shaped structure, and the cross-section of the slider 401 is a "convex" shaped structure. Therefore, when the first knob 403 is pressed against the slide 3, the slider 401 can be prevented from sliding inside the first slide groove 402.

[0027] As a technical optimization solution of the utility model, Figure 4 , Figure 5 and Figure 6 As shown, the locking structure 5 includes a slide bar 501 and a guide groove 502, the slide 3 is slidably connected with the slide bar 501, the slide bar 501 is provided with a guide groove 502, the slide 3 is slidably connected with a block 504, the block 504 is fixedly connected with a guide shaft 503, the guide shaft 503 extends to the inside of the guide groove 502 and is slidably connected to the slide bar 501, the slide seat 2 is provided with two slots 506, the bottom end of the block 504 is connected to one of the slots 506, and the bottom end of the block 504 is connected to one of the slots 506. The blocks 504 and the slots 506 are engaged with each other, and a return spring 505 is provided inside the slide 3, one end of the return spring 505 is fixedly connected to the slide bar 501, and the other end of the return spring 505 is fixedly connected to the slide 3. The bottom end of the cross section of the block 504 is a trapezoidal structure, and one end of the cross section of the slide bar 501 is a T-shaped structure. Therefore, when the slide 3 moves to the specified position, the block 504 and the slot 506 are engaged with each other to prevent the slide 3 and the slide seat 2 from moving.

[0028] As a technical optimization solution of the utility model, Figure 1 and Figure 5 As shown, a plurality of sealing doors 7 are rotatably connected to the box body 1, and a sealing gasket 8 is engaged with the sealing door 7, so that the double-sided multi-layer circuit board inside the box body 1 can be sealed by the sealing door 7, and the sealing gasket 8 can improve the sealing between the sealing door 7 and the box body 1.

[0029] As a technical optimization solution of the utility model, Figure 1 , Figure 2 and Figure 3 As shown, the box body 1 is provided with a fixed structure 9, and the fixed structure 9 includes a vertical rod 901 and a second slide groove 902. The box body 1 is slidably connected with vertical rods 901, the number of which is equal to the sealing door 7. The box body 1 is provided with a plurality of second slide grooves 902. The two ends of the vertical rod 901 are respectively slidably matched with two second slide grooves 902. The vertical rod 901 is threadedly connected with a plurality of screws 904, and the ends of the screws 904 are fixedly connected with a rotating rod 903. The cross-section of the second slide groove 902 is a "convex" shaped structure, so that the sealing door 7 and the box body 1 can be tightly pressed, thereby improving the sealing performance.

[0030] As a technical optimization solution of the utility model, Figure 5 and Figure 7 As shown, the dehumidification structure 6 includes an outer frame 601 and a filter screen 602. The box body 1 is detachably connected to the outer frame 601 with the same number as the sealing door 7 through multiple bolts. The filter screen 602 is fixedly connected to the outer frame 601. A mesh frame 603 is provided on one side of the outer frame 601. One side of the edge of the mesh frame 603 is in contact with the outer frame 601 and the other side is in contact with the box body 1. Calcium chloride particles 604 are provided between the filter screen 602 and the mesh frame 603. The box body 1 is installed with axial flow fans 605 with the same number as the outer frame 601. Therefore, the interior of the box body 1 can be dehumidified, so that the double-sided multi-layer circuit boards are placed in a dry environment, which effectively prevents the double-sided multi-layer circuit boards from being damaged by moisture.

[0031] When the utility model is in use, when it is necessary to place a double-sided multi-layer circuit board, the slide bar 501 can be pulled, and the movement of the slide bar 501 will cause the guide shaft 503 to move inside the guide groove 502. When the guide shaft 503 moves inside the guide groove 502, the block 504 will move away from one of the slots 506, and the return spring 505 will shrink. When the block 504 is not engaged with one of the slots 506, the slide 3 can be drawn out from the inside of the box body 1, and the slide seat 2 plays a guiding role during the movement of the slide 3. The slide 3 is continuously pulled until the block 504 is engaged with the other slot 506. At this time, the slide 3 cannot slide on the slide seat 2, and then a double-sided multi-layer circuit board can be placed on two opposite support plates 4. 04, and the distance between the two support plates 404 can be adjusted according to the actual size of the double-sided multi-layer circuit board. When adjusting, the first knob 403 can be turned. When the end of the first knob 403 is not tightly against the slide 3, the slider 401 can be pushed to slide inside the first slide groove 402, and the slider 401 will drive the support plate 404 to move, thereby realizing the adjustment of the position of the support plate 404. By adjusting the position of the support plate 404, the double-sided multi-layer circuit board of different sizes can be located just between the two opposite support plates 404, thereby effectively improving the flexibility of use. After the double-sided multi-layer circuit board is placed, the second knob 405 can be turned, and the second knob 405 drives the pressing plate 406 toward the edge of the double-sided multi-layer circuit board. The second knob 405 is stopped when the pressure plate 406 is in contact with the edge of the double-sided multi-layer circuit board, and the double-sided multi-layer circuit board is fixed at this time, so that the double-sided multi-layer circuit board can be prevented from being damaged by the collision between the double-sided multi-layer circuit board and the box 1 when the box 1 is hit or tilted, thereby effectively improving the safety of use. When the double-sided multi-layer circuit board is placed between all the two opposite support plates 404, the slide 3 can be pushed into the interior of the box 1 and the card block 504 can be engaged with the card slot 506, and then the sealing door 7 can be closed. When the sealing door 7 is closed, the vertical rod 901 can be pushed so that the vertical rod 901 is located on one side of the sealing door 7, and then one of the screws can be turned by the rotating rod 903. Rod 904, when one of the screw rods 904 is pressed against the sealing door 7, repeat the above operation to make the other two screw rods 904 also press against the sealing door 7, so that the sealing between the sealing door 7 and the box body 1 can be improved, and then the axial flow fan 605 is started. Under the action of the axial flow fan 605, the air outside the box body 1 will pass through the filter screen 602, the calcium chloride particles 604 and the mesh frame 603 in turn to enter the interior of the box body 1, and the air inside the box body 1 will be discharged from one side of the axial flow fan 605. In the process of air circulation, the moisture in the air can be removed by the calcium chloride particles 604, so that the double-sided multi-layer circuit board can be placed in a dry environment, which effectively avoids the double-sided multi-layer circuit board from being damaged by moisture.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-sided multi-layer circuit board moisture-proof device, comprising a box (1), characterized in that: The box body (1) is fixedly connected to a plurality of slide seats (2), the slide seats (2) are slidably connected to a slide frame (3), the slide frame (3) is provided with a placement structure (4), the placement structure (4) comprises a slider (401) and a first knob (403), the slide frame (3) is slidably connected to a plurality of slide seats (401), the slider (401) is threadedly connected to a first knob (403), a plurality of first slide grooves (402) are respectively provided on both sides of the slide frame (3), the A plurality of sliders (401) are slidably connected inside the first slide groove (402); a support plate (404) is fixedly connected to the slider (401); a pressure plate (406) is slidably connected to the support plate (404); a second knob (405) is threadedly connected to the support plate (404); the bottom end of the second knob (405) is rotatably connected to the pressure plate (406); a dehumidification structure (6) is provided on the box body (1); and a locking structure (5) is provided on the slide bracket (3).

2. A double-sided multi-layer circuit board moisture-proof device according to claim 1, characterized in that: The cross section of the sliding seat (2) is in the shape of a "convex" character, and the cross section of the first sliding groove (402) is in the shape of a "convex" character.

3. A double-sided multi-layer circuit board moisture-proof device according to claim 1, characterized in that: The cross section of the support plate (404) is a U-shaped structure, and the cross section of the sliding block (401) is a "convex"-shaped structure.

4. A double-sided multi-layer circuit board moisture-proof device according to claim 1, characterized in that: The locking structure (5) comprises a sliding rod (501) and a guide groove (502); the sliding rod (501) is slidably connected to the sliding frame (3); the sliding rod (501) is provided with a guide groove (502); a clamping block (504) is slidably connected to the sliding frame (3); a guide shaft (503) is fixedly connected to the clamping block (504); the guide shaft (503) extends to the inside of the guide groove (502) and is slidably connected to the sliding rod (501).

5. A double-sided multi-layer circuit board moisture-proof device according to claim 4, characterized in that: The slide seat (2) is provided with two slots (506), and the bottom end of the clamping block (504) is clamped with one of the slots (506).

6. A double-sided multi-layer circuit board moisture-proof device according to claim 4, characterized in that: A return spring (505) is provided inside the slide (3), one end of the return spring (505) is fixedly connected to the slide rod (501), and the other end of the return spring (505) is fixedly connected to the slide (3), the bottom end of the cross section of the block (504) is a trapezoidal structure, and one end of the cross section of the slide rod (501) is a T-shaped structure.

7. A double-sided multi-layer circuit board moisture-proof device according to claim 1, characterized in that: A plurality of sealing doors (7) are rotatably connected to the box body (1), and sealing pads (8) are clamped on the sealing doors (7).

8. A double-sided multi-layer circuit board moisture-proof device according to claim 7, characterized in that: The box body (1) is provided with a fixed structure (9), the fixed structure (9) comprising a vertical rod (901) and a second slide groove (902), the box body (1) is slidably connected with a number of vertical rods (901) equal to the number of the sealing door (7), the box body (1) is provided with a plurality of second slide grooves (902), the two ends of the vertical rod (901) are respectively slidably matched with the two second slide grooves (902), and the vertical rod (901) is threadedly connected with a plurality of screw rods (904).

9. A double-sided multi-layer circuit board moisture-proof device according to claim 8, characterized in that: The end of the screw rod (904) is fixedly connected to a rotating rod (903), and the cross-section of the second sliding groove (902) is a "convex"-shaped structure.

10. A double-sided multi-layer circuit board moisture-proof device according to claim 1, characterized in that: The dehumidification structure (6) comprises an outer frame (601) and a filter screen (602); the outer frames (601) are detachably connected to the housing (1) by means of a plurality of bolts, the filter screen (602) being fixedly connected to the outer frame (601); a mesh frame (603) is provided on one side of the outer frame (601); one side of the edge of the mesh frame (603) is in contact with the outer frame (601) and the other side is in contact with the housing (1); calcium chloride particles (604) are provided between the filter screen (602) and the mesh frame (603); and the housing (1) is provided with axial flow fans (605) being in contact with the outer frames (601).

Images