CN216253622U - Anti-solder-shedding printed circuit board - Google Patents
Anti-solder-shedding printed circuit board Download PDFInfo
- Publication number
- CN216253622U CN216253622U CN202122890702.XU CN202122890702U CN216253622U CN 216253622 U CN216253622 U CN 216253622U CN 202122890702 U CN202122890702 U CN 202122890702U CN 216253622 U CN216253622 U CN 216253622U
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- China
- Prior art keywords
- screw
- circuit board
- spring
- fixedly connected
- printed circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000013016 damping Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 24
- 230000035939 shock Effects 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005476 soldering Methods 0.000 abstract description 6
- 230000001174 ascending effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The utility model discloses an anti-welding-off printed circuit board which comprises a substrate, wherein components are welded on the top of the substrate, a mounting hole penetrates through the top and the bottom of the substrate, a fixing mechanism is arranged in the mounting hole and comprises a screw, the screw penetrates through the substrate through the mounting hole, a limiting ring is in threaded connection with the surface of the screw, mounting cylinders are arranged between the bottom of a screw cap and the limiting ring and positioned on two sides of the substrate, and radial damping assemblies are arranged on the tops of the inner walls of the mounting cylinders through axial damping assemblies. This anticreep welds printed circuit board to the ascending vibrations of screw diameter side, through the cooperation of movable block, ejector pin, roof and first spring, with radial vibrations effective absorption, reduces vibrations and to the influence of base plate, improves the stability between base plate and the welding piece, prevents the phenomenon that breaks away from, the life of extension circuit board from appearing between component and the soldering tin.
Description
Technical Field
The utility model relates to the technical field of printed circuit boards, in particular to a solder-shedding prevention printed circuit board.
Background
The printed circuit board is developed from a single layer to a double-sided board, a multilayer board and a flexible board, and is continuously developed towards high precision, high density and high reliability, the volume is continuously reduced, the cost is reduced, and the performance is continuously improved, so that the printed circuit board still keeps strong vitality in the development process of future electronic products, and the development trend of the production and manufacturing technology of the printed circuit board in the future is to be developed towards high density, high precision, fine aperture, fine lead, small spacing, high reliability, multilayering, high-speed transmission, light weight and thin type in performance.
According to patent grant publication No. CN 212034423U an anti-off-welding printed circuit board, which relates to the field of circuit boards and comprises a substrate, wherein an electronic structure is fixedly installed at the top of the substrate, a first installation hole is formed in the top of the substrate, a welding opening is fixedly installed on the inner side wall of the first installation hole, an anti-off cavity is formed in the bottom, located at the welding opening, of the substrate, a fixing device is arranged on the side wall of the substrate and comprises a frame, a second spring, a rotating shaft and a fixing plate, the frame is fixedly installed on the outer side wall of the substrate, a first installation hole is formed in the frame, the rotating shaft is fixedly installed on the inner side wall of the frame through the first installation hole, a second installation hole is formed in the fixing plate, the fixing plate is fixedly installed on the rotating shaft through the second installation hole, a third installation groove is formed in the substrate, one end of the second spring is fixedly installed on the inner side wall of the third installation groove, and a supporting leg only can play a certain role in damping to the vibration in the axis direction of a connecting rod, the shock attenuation effect is relatively poor, has weakened the stability of soldering tin in the welding groove inside, leads to the phenomenon that breaks away from to appear between component and the soldering tin easily, has shortened the life of circuit board.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an anti-off printed circuit board, which solves the problems that supporting legs in the patent only can play a certain role in damping vibration in the axial direction of a connecting rod, the damping effect is poor, the stability of soldering tin in a welding groove is weakened, the separation phenomenon between elements and the soldering tin is easily caused, and the service life of the circuit board is shortened.
In order to achieve the purpose, the utility model is realized by the following technical scheme: an anti-welding printed circuit board comprises a substrate, components are welded on the top of the substrate, a mounting hole is formed between the top and the bottom of the substrate in a penetrating manner, a fixing mechanism is arranged in the mounting hole and comprises a screw, the screw penetrates through the substrate through the mounting hole, a limiting ring is in threaded connection with the surface of the screw, mounting cylinders are arranged between the bottom of a screw nut and the limiting ring and positioned on two sides of the substrate, a radial damping assembly is arranged at the top of the inner wall of each mounting cylinder through an axial damping assembly and comprises a mounting ring, a mounting cavity is formed in the mounting ring, a movable block is connected between the top and the bottom of the inner wall of the mounting cavity in a sliding manner, an ejector rod is fixedly connected to one side of the movable block, and one end, away from the movable block, of the ejector rod penetrates through the mounting ring and extends to the outside of the mounting ring, the ejector pin is located the outside one end fixedly connected with roof of collar, the roof contacts with the surface of screw, the first spring of one side fixedly connected with of movable block, the one end that the movable block was kept away from to first spring and the inner wall fixed connection of installation cavity.
Preferably, the installation cavity is provided with a plurality of installation cavities, and the installation cavities are distributed on the circumference of the installation ring at equal intervals.
Preferably, the axial shock absorption assembly comprises a first spring plate and a second spring plate, the first spring plate is fixedly connected with the bottom of the mounting ring, and the second spring plate is fixedly connected with the bottom of the inner wall of the mounting cylinder.
Preferably, the bottom of the first spring plate is fixedly connected with a second spring, and one end, far away from the first spring plate, of the second spring is fixedly connected with the second spring plate.
Preferably, the top of the inner wall of the mounting cylinder is fixedly connected with a fixing ring, and the diameter of the inner ring of the fixing ring is larger than that of the outer ring of the mounting ring.
Preferably, the top of the substrate is provided with a plurality of welding ports.
Advantageous effects
The utility model provides a printed circuit board capable of preventing solder stripping. Compared with the prior art, the method has the following beneficial effects:
(1) the anti-welding printed circuit board is characterized in that a fixing mechanism is arranged in a mounting hole, the fixing mechanism comprises a screw, the screw penetrates through a base plate through the mounting hole, the surface of the screw is in threaded connection with a limiting ring, mounting cylinders are arranged between the bottom of a screw nut and the limiting ring and positioned on two sides of the base plate, the top of the inner wall of each mounting cylinder is provided with a radial damping component through an axial damping component, each radial damping component comprises a mounting ring, a mounting cavity is formed in the mounting ring, a movable block is connected between the top and the bottom of the inner wall of the mounting cavity in a sliding manner, one side of each movable block is fixedly connected with a mandril, one end, far away from the corresponding movable block, of each mandril penetrates through the corresponding mounting ring and extends to the outer part of the mounting ring, one end, located outside the corresponding mounting ring, of each mandril is fixedly connected with a top plate, the top plate is in contact with the surface of the screw, one side of each movable block is fixedly connected with a first spring, one end, far away from the corresponding movable block, of each first spring is fixedly connected with the inner wall of the mounting cavity, to the ascending vibrations of screw diameter, through the cooperation of movable block, ejector pin, roof and first spring, with radial vibrations effective absorption, reduce vibrations to the influence of base plate, improve the stability between base plate and the welding piece, prevent the phenomenon that breaks away from between component and the soldering tin, prolong the life of circuit board.
(2) This anticreep welds printed circuit board, include first spring leaf and second spring leaf through axial shock-absorbing component, the bottom fixed connection of first spring leaf and collar, the bottom fixed connection of second spring leaf and installation section of thick bamboo inner wall, the bottom fixedly connected with second spring of first spring leaf, the one end and the second spring leaf fixed connection of first spring leaf are kept away from to the second spring, through first spring leaf, the transmission of vibrations on screw axis direction is followed to cooperation greatly reduced between second spring leaf and the second spring, further improve the shock attenuation effect.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the securing mechanism of the present invention;
FIG. 3 is an enlarged view of a portion of the utility model at A in FIG. 2;
FIG. 4 is a cross-sectional view of the radial shock assembly of the present invention.
In the figure: the device comprises a base plate 1, a component 2, a fixing mechanism 3, a screw 31, a limiting ring 32, a radial damping component 33, a mounting ring 331, a mounting cavity 332, a movable block 333, a mandril 334, a top plate 335, a first spring 336, an axial damping component 34, a first spring 341, a second spring 342, a second spring 343, a mounting cylinder 35, a fixing ring 36, a mounting hole 4 and a welding port 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: an anti-welding printed circuit board comprises a substrate 1, the substrate 1 is a multilayer substrate, a component 2 is welded on the top of the substrate 1, a welding port 5 is arranged on the top of the substrate 1, the welding port 5 is provided with a plurality of welding ports for facilitating wiring, a mounting hole 4 is formed between the top and the bottom of the substrate 1 in a penetrating manner, a fixing mechanism 3 is arranged in the mounting hole, the fixing mechanism 3 comprises a screw 31, a certain distance is worn between the surface of the screw 31 and the mounting hole 4, the screw 31 penetrates through the substrate 1 through the mounting hole 4, a limiting ring 32 is in threaded connection with the surface of the screw 31, mounting cylinders 35 are arranged between the bottom of a screw cap of the screw 31 and the limiting ring 32 and positioned at two sides of the substrate 1, fixing rings 36 are fixedly connected to the tops of the inner walls of the mounting cylinders 35, the diameters of the inner rings 36 are larger than those of the outer rings of the mounting rings 331, and radial damping assemblies 33 are arranged on the tops of the inner walls of the mounting cylinders 35 through the axial damping assemblies 34, the axial shock absorption assembly 34 comprises a first spring plate 341 and a second spring plate 342, the first spring plate 341 is fixedly connected with the bottom of the mounting ring 331, the second spring plate 342 is fixedly connected with the bottom of the inner wall of the mounting cylinder 35, the bottom of the first spring plate 341 is fixedly connected with a second spring 343, one end of the second spring 343, which is far away from the first spring plate 341, is fixedly connected with the second spring plate 342, the radial shock absorption assembly 33 comprises the mounting ring 331, a mounting cavity 332 is formed in the mounting ring 331, the mounting cavities 332 are provided with a plurality of mounting cavities 332, which are equidistantly distributed in the circumferential direction of the mounting ring 331, a movable block 333 is slidably connected between the top and the bottom of the inner wall of the mounting cavity 332, a top rod 334 is fixedly connected to one side of the movable block 333, one end of the top rod 334, which is far away from the movable block 333, penetrates through the mounting ring 331 and extends to the outside of the mounting ring 331, and one end of the top rod 334, which is located outside the mounting ring 331, is fixedly connected with a top plate 335, the top plate 335 is in contact with the surface of the screw 31, one side of the movable block 333 is fixedly connected with a first spring 336, and one end of the first spring 336 far away from the movable block 333 is fixedly connected with the inner wall of the mounting cavity 332.
During the use, during the installation, place the both sides of base plate 1 mounting hole 4 respectively with two installation barrels 35, screw 31 passes installation barrel 35 and mounting hole 4 in proper order after screwing up spacing ring 32 and supports behind mounting ring 331 and fix the base plate 1 to suitable position through screw 31 again, aim at the terminal post welding mouth 5 and weld, when shaking, to the vibrations along screw 31 axial direction, through the cooperation between first spring leaf 341, second spring leaf 342 and the second spring 343, the transmission of vibrations along screw 31 axial direction is greatly reduced, to the vibrations along screw 31 diameter direction, through the cooperation of movable block 333, ejector pin 334, roof 335 and first spring 336, carry out effective absorption to radial vibrations, reduce the influence of vibrations to base plate 1.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an anticreep welds printed circuit board, includes base plate (1), the top welding of base plate (1) has components and parts (2), its characterized in that: a mounting hole (4) penetrates through the top and the bottom of the substrate (1), and a fixing mechanism (3) is arranged in the mounting hole;
the fixing mechanism (3) comprises a screw (31), the screw (31) penetrates through the substrate (1) through a mounting hole (4), the surface of the screw (31) is in threaded connection with a limiting ring (32), mounting cylinders (35) are arranged between the bottoms of nuts of the screw (31) and the limiting ring (32) and located on two sides of the substrate (1), and the tops of the inner walls of the mounting cylinders (35) are provided with radial damping assemblies (33) through axial damping assemblies (34);
radial damper (33) are including collar (331), installation cavity (332) have been seted up to the inside of collar (331), sliding connection has movable block (333) between the top of installation cavity (332) inner wall and the bottom, one side fixedly connected with ejector pin (334) of movable block (333), the one end that movable block (333) were kept away from in ejector pin (334) runs through collar (331) and extends to the outside of collar (331), ejector pin (334) are located the outside one end fixedly connected with roof (335) of collar (331), roof (335) contact with the surface of screw (31), the first spring (336) of one side fixedly connected with of movable block (333), the one end that movable block (333) were kept away from in first spring (336) and the inner wall fixed connection of installation cavity (332).
2. The solder-shedding prevention printed circuit board of claim 1, wherein: the installation cavities (332) are arranged in a plurality, and the installation cavities (332) are distributed on the circumferential direction of the installation ring (331) at equal intervals.
3. The solder-shedding prevention printed circuit board of claim 1, wherein: the axial shock absorption assembly (34) comprises a first spring piece (341) and a second spring piece (342), the first spring piece (341) is fixedly connected with the bottom of the mounting ring (331), and the second spring piece (342) is fixedly connected with the bottom of the inner wall of the mounting cylinder (35).
4. The solder-shedding prevention printed circuit board of claim 3, wherein: the bottom of the first spring piece (341) is fixedly connected with a second spring (343), and one end, far away from the first spring piece (341), of the second spring (343) is fixedly connected with a second spring piece (342).
5. The solder-shedding prevention printed circuit board of claim 1, wherein: the top fixedly connected with of installation section of thick bamboo (35) inner wall is fixed ring (36), the diameter of fixed ring (36) inner circle is greater than the diameter of collar (331) outer lane.
6. The solder-shedding prevention printed circuit board of claim 1, wherein: the top of base plate (1) is provided with welding mouth (5), welding mouth (5) are provided with a plurality ofly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122890702.XU CN216253622U (en) | 2021-11-24 | 2021-11-24 | Anti-solder-shedding printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122890702.XU CN216253622U (en) | 2021-11-24 | 2021-11-24 | Anti-solder-shedding printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216253622U true CN216253622U (en) | 2022-04-08 |
Family
ID=80957459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122890702.XU Expired - Fee Related CN216253622U (en) | 2021-11-24 | 2021-11-24 | Anti-solder-shedding printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216253622U (en) |
-
2021
- 2021-11-24 CN CN202122890702.XU patent/CN216253622U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220408 |