CN110996598B - Reinforcing device capable of directly locking circuit board outside box - Google Patents
Reinforcing device capable of directly locking circuit board outside box Download PDFInfo
- Publication number
- CN110996598B CN110996598B CN201911154398.3A CN201911154398A CN110996598B CN 110996598 B CN110996598 B CN 110996598B CN 201911154398 A CN201911154398 A CN 201911154398A CN 110996598 B CN110996598 B CN 110996598B
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- Prior art keywords
- circuit board
- locking
- wedge block
- assembly
- shaft
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000000712 assembly Effects 0.000 claims 4
- 238000000429 assembly Methods 0.000 claims 4
- 230000035939 shock Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
- H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
- H05K7/1404—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards by edge clamping, e.g. wedges
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The invention discloses a reinforcing device capable of directly locking a circuit board outside a box, which comprises an upper circuit board reinforcing mechanism and a lower circuit board reinforcing mechanism which are the same, wherein each circuit board reinforcing mechanism comprises a wedge-shaped locking assembly, a universal transmission assembly and a locking driving assembly, the upper wedge-shaped locking assembly and the lower wedge-shaped locking assembly are arranged at the upper edge and the lower edge of one side surface of the circuit board in the box, the upper locking driving assembly and the lower locking driving assembly are arranged at the upper part and the lower part of a small panel, the small panel is arranged in a counter bore table of a front cover plate of the box, and the small panel and the circuit board are connected through screws to form a hard-connected integral module. The wedge-shaped locking assembly and the locking driving assembly are connected into movable connection through the universal transmission assembly. The circuit board can be integrally plugged and unplugged without disassembling the front cover plate, and the circuit board is directly locked or unlocked outside the box body through the circuit board reinforcing mechanism, so that the circuit board is reliably reinforced, the shock resistance and vibration energy of the whole machine are improved, and the circuit board plugging device has the characteristics of compact structure, simplicity in assembly and convenience in operation.
Description
Technical Field
The invention relates to electronic equipment, in particular to a reinforcing device capable of directly locking a circuit board outside a box.
Background
When the electronic equipment is applied to application fields with severe requirements on anti-vibration impact capability, such as vehicle-mounted and airborne, the electronic equipment also provides corresponding requirements on convenience of equipment maintenance.
The reinforcement mode and the installation flow of the existing electronic equipment case circuit board are generally as follows:
1. the edge of the circuit board is inserted into the clamping groove of the box body, then the metal plate connected with one end of the circuit board is fixed in the machine box through the cross groove screw, then the related wire harness is connected and inserted, and then the integral front cover plate is assembled.
2. The circuit board is fixed by mutually extruding a wedge-shaped locking bar arranged on the circuit board and a guide rail groove of the box body, then the related wire harness is connected and inserted, and then the integral front cover plate is arranged.
The front cover plate or the top cover plate is required to be detached in the two modes, and the circuit board is removed for maintenance after the related wire harnesses are pulled out, so that the convenience in disassembly and assembly is greatly reduced under the condition that more wire harnesses are required to be plugged in and pulled out; in addition, the circuit board and the clamping groove in the 1 st mounting mode have gaps, are not completely clamped, and have poor vibration and impact resistance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to solve the technical problem of providing a reinforcing device capable of directly locking a circuit board outside a box body for locking the circuit board outside the box body.
Can solve the reinforcing apparatus of the external direct locking circuit board of the above-mentioned technical problem, its technical scheme includes upper and lower two sets of identical circuit board strengthening mechanisms, each circuit board strengthening mechanism includes wedge locking subassembly, universal drive subassembly and locking drive subassembly, upper and lower two wedge locking subassemblies locate the upper and lower border of a circuit board side in the box, upper and lower two locking drive subassemblies set up in the upper and lower position of panel, the panel is installed in the counter bore bench of the front shroud of box, and the panel links to each other for hard connection through the screw with the circuit board, connects panel and circuit board into an integral module, can realize that the whole of panel and circuit board is pulled out and inserted, links to each other for dynamic connection by universal drive subassembly between wedge locking subassembly and the locking drive subassembly of every set of circuit board strengthening mechanism, can realize the external direct completion of box to locking or unblock of circuit board, wherein:
1. Each wedge-shaped locking assembly comprises a fixed wedge block arranged on the circuit board, a front movable wedge block and a rear movable wedge block which are arranged at the front end and the rear end of the fixed wedge block, wherein the front end of a locking shaft in the fixed wedge block penetrates through a light hole of the front movable wedge block, the rear end of the locking shaft is screwed into a threaded hole of the rear movable wedge block, and the matching surface between the fixed wedge block and the front movable wedge block and between the fixed wedge block and the rear movable wedge block is a wedge surface capable of enabling the front movable wedge block and the rear movable wedge block to laterally move under the driving of the locking shaft.
2. Each universal transmission assembly comprises a front universal cross shaft and a rear universal cross shaft which are connected through a middle shaft, and the rear universal cross shaft is connected with the front end of the locking shaft.
3. Each locking driving assembly comprises a square flange plate or a round flange plate which is arranged on the small panel, a driving shaft is arranged in a shaft sleeve at the rear end of the flange plate or a driving shaft is arranged in a bearing seat at the rear end of the flange plate through a bearing, the rear end of the driving shaft is connected with a front universal cross shaft, the front end of the driving shaft provided with a wrench position extends out of a central hole of the flange plate or the front end of the driving shaft provided with a hexagon hole is arranged in the central hole of the flange plate.
Conventionally, a plurality of circuit boards are transversely arranged in the box body side by side at equal intervals.
The circuit board is optimally arranged into four blocks.
Further, the upper and lower edges of the circuit board and the upper and lower wedge locking components are arranged in the upper sliding groove and the lower sliding groove which are correspondingly arranged in the box body.
The invention has the beneficial effects that:
1. By using the reinforcing device, the front cover plate or the top cover plate does not need to be disassembled, the wiring harness of the circuit board connected with the connector arranged on the small panel does not need to be pulled out, the circuit board and the small panel can be integrally plugged in and pulled out, and the locking or unlocking action of the circuit board can be directly completed outside the box body.
2. Compared with the traditional mode of reinforcing the circuit board in the chassis, particularly in the application fields of electronic equipment such as vehicles, machine carriers and the like, which not only require the circuit board to be reinforced to improve the shock resistance and vibration energy capacity of the whole machine, but also have higher requirements on maintenance convenience, the invention has good application value.
3. In the structure of the invention, the universal transmission assembly can eliminate the position change of the locking shaft of the wedge-shaped locking assembly caused by locking and reinforcing, and can realize the connection transmission of the locking shaft of the wedge-shaped locking assembly, the middle shaft of the universal transmission assembly and the driving shaft of the locking driving assembly in three-dimensional space.
4. The invention has compact structure, simple assembly and convenient operation, ensures that the layout of panel devices on the circuit board and the wiring in the box body are more flexible, and can realize reliable reinforcement of the circuit board so as to improve the shock resistance and vibration energy capacity of the whole machine.
5. In the structure of the invention, the wedge-shaped locking assembly, the universal transmission assembly and the locking driving assembly are simple to manufacture and process, the modularized structural design is adopted, the universality is better, the locking torque transmission and the circuit board reinforcement are reliable, and the cost performance is higher.
Drawings
FIG. 1 is a schematic diagram of an assembly of an exemplary application of an embodiment of the present invention.
Fig. 2 is an isometric view of the circuit board reinforcing mechanism of the embodiment of fig. 1.
Fig. 3 is an isometric view of the universal drive assembly of fig. 2.
Fig. 4 is an isometric view of the wedge lock assembly of fig. 2.
Fig. 5 is an isometric view of the locking drive assembly of fig. 2.
Drawing number identification: 1. a circuit board; 2. a wedge-shaped locking assembly; 2-1, fixing wedge blocks; 2-2, front moving wedge blocks; 2-3, moving wedge blocks; 2-4, locking the shaft; 3. a universal transmission assembly; 3-1, an intermediate shaft; 3-2, front universal cross; 3-3, a rear universal cross; 4. a locking drive assembly; 4-1, square flange plates; 4-2, driving shaft; 4-3, bearing seats; 4-4, a bearing; 4-5, inner hexagonal holes; 4-6, a thread retainer ring; 5. a small panel; 6. a case; 6-1, a front cover plate; 6-1-1, a counter bore table; 6-2, a lower sliding groove; 7. and a circuit board reinforcing mechanism.
Detailed Description
The technical scheme of the invention is further described below with reference to the embodiment shown in the drawings.
The invention discloses a reinforcing device capable of directly locking circuit boards outside a box, which comprises a circuit board reinforcing mechanism 7 for locking each circuit board 1 arranged in a box body 6 of vehicle-mounted or airborne electronic equipment, wherein the box body 6 is of a rectangular hexahedron, the front end opening of the box body 6 is closed by a front cover plate 6-1 (in screw installation connection), four longitudinal (front and rear) circuit boards 1 are transversely and vertically arranged in the box body 6 at equal intervals, the upper edge and the lower edge of each circuit board 1 are slidably arranged in an upper sliding groove and a lower sliding groove 6-2 which are correspondingly arranged in the box body 6, a rectangular counter bore table 6-1-1 (in the upper and lower directions in the length direction) is arranged on the front cover plate 6-1 corresponding to each circuit board 1, a small panel 5 which is matched with the counter bore table 6-1 (in screw connection) is arranged on one side surface of the small panel 5 opposite to the circuit board 1, the boss is provided with three threaded holes, and the three threaded holes correspond to the three unthreaded holes arranged on the front edge of the circuit board 1, as shown in fig. 1.
An upper circuit board reinforcing mechanism 7 and a lower circuit board reinforcing mechanism 7 which are the same are arranged corresponding to each circuit board 1 and the small panel 5, each circuit board reinforcing mechanism 7 comprises a wedge-shaped locking assembly 2, a universal transmission assembly 3 and a locking driving assembly 4, the upper wedge-shaped locking assembly 2 and the lower wedge-shaped locking assembly 2 are arranged at the upper edge and the lower edge of one side surface of the circuit board 1 and are arranged in corresponding sliding grooves, and the upper locking driving assembly 4 and the lower locking driving assembly 4 are arranged at the upper part and the lower part of the small panel 5; the small panel 5 is installed in the counter bore table 6-1-1 of the front cover plate 6-1 of the box body 6, and the front side of the circuit board 1 is fixed on the boss of the small panel 5 by using three screws, so that the circuit board 1 and the small panel 5 are connected into a hard-connected integral module, and the wedge-shaped locking assembly 2 and the locking driving assembly 4 of each set of circuit board reinforcing mechanism 7 are connected into a movable connection by the universal transmission assembly 3, as shown in fig. 1 and 2.
Each wedge-shaped locking assembly 2 comprises a middle strip-shaped (front and rear direction) fixed wedge block 2-1 (mounted on the circuit board 1 by using screws), a front movable wedge block 2-2 and a rear movable wedge block 2-3 which are arranged at the front end and the rear end of the fixed wedge block 2-1, wherein the matching surface of the front movable wedge block 2-2 and the fixed wedge block 2-1 is a vertical wedge surface (inclined rightward and backward), the matching surface of the rear movable wedge block 2-3 and the fixed wedge block 2-1 is also a vertical wedge surface (inclined rightward and forward), a front locking shaft 2-4 and a rear locking shaft 2-4 are arranged in the fixed wedge block 2-1, the front movable wedge block 2-2 is sleeved at the front end of the locking shaft 2-4 (through a unthreaded hole), the rear movable wedge block 2-3 is screwed on the rear end screw fastener of the locking shaft 2-4, and the front movable wedge block 2-2 and the rear movable wedge block 2-3 can be driven to shift rightward and laterally by rotating the locking shaft 2-4, as shown in fig. 2 and 4.
Each universal transmission assembly 3 comprises a front universal cross shaft 3-2 and a rear universal cross shaft 3-3 which are connected through a middle shaft 3-1, and the front ends of the locking shafts 2-4 penetrate through the light holes of the front movable wedge blocks 2-2 to be connected with the rear universal cross shafts 3-3, as shown in fig. 2 and 3.
Each locking driving assembly 4 comprises a square flange 4-1 which is arranged on a corresponding flange hole on the small panel 5 by using a screw, a through hole (a central hole) is formed in the middle of the square flange 4-1, a bearing seat 4-3 is coaxially arranged at the rear end of the square flange 4-1, a driving shaft 4-2 is arranged in the bearing seat 4-3 through a bearing 4-4, the bearing 4-4 is limited by a shaft step of the driving shaft 4-2 and a threaded retainer ring 4-6, the front end of the driving shaft 4-2 extends out of the bearing seat 4-3 and is arranged in the through hole of the square flange 4-1, an inner hexagonal hole 4-5 is formed in the front end face of the driving shaft 4-2 inwards, and the rear end of the driving shaft 4-2 extends out of the bearing seat 4-3 to be connected with a front universal cross shaft 3-2, as shown in fig. 2 and 5.
Taking the insertion and locking actions of the circuit board 1 on the right outer side (right side when viewed from the rear to the front) in fig. 1 as an example, the use method of the present invention is described as follows:
1. outside the box 6, the upper and lower sets of circuit board reinforcing mechanisms 7, the circuit board 1 and the small panel 5 are assembled into an integral module through screws.
2. Inserting the assembled integral module into corresponding upper sliding grooves and lower sliding grooves 6-2 in the box body 6 from a right outer counter bore table 6-1-1 on the front cover plate 6-1; after the circuit board 1 is inserted in place (boss limiting), the small panel 5 is fixed on the front cover plate 6-1 by using screws, and at the moment, the front moving wedge block 2-2 and the rear moving wedge block 2-3 have no transverse offset relative to the fixed wedge block 2-1.
3. The driving shaft 4-2 is rotated by using an inner hexagonal wrench tool, the driving shaft 4-2 drives the locking shaft 2-4 to rotate through the universal transmission assembly 3, the locking shaft 2-4 drives the front moving wedge block 2-2 and the rear moving wedge block 2-3 to synchronously and transversely deviate opposite to the fixed wedge block 2-1 and tightly press on the right side groove walls of the upper sliding groove and the lower sliding groove 6-2 so as to eliminate gaps between the circuit board 1 and the upper sliding groove and the lower sliding groove 6-2, and therefore the purpose of locking the circuit board 1 is achieved.
4. On the contrary, the inner hexagonal wrench tool is utilized to reversely rotate the driving shaft 4-2, the universal transmission assembly 3 is utilized to drive the front movable wedge block 2-2 and the rear movable wedge block 2-3 to synchronously and transversely shift opposite to the fixed wedge block 2-1, so that the locking of the circuit board 1 can be relieved, and after the assembled integral module is pulled out from the box body 6, the circuit board 1 can be conveniently and rapidly subjected to relevant maintenance and overhaul.
Claims (1)
1. The utility model provides a reinforcing apparatus that can directly lock circuit board outside case which characterized in that: the device comprises a circuit board reinforcing mechanism (7) for locking each circuit board (1) arranged in a box body (6) of vehicle-mounted or airborne electronic equipment, the box body (6) is a rectangular hexahedron, the front end opening of the box body (6) is closed by a front cover plate (6-1), four longitudinal circuit boards (1) are transversely and vertically arranged in the box body (6) at equal intervals, the upper edge and the lower edge of each circuit board (1) are slidingly arranged in an upper sliding groove and a lower sliding groove (6-2) which are correspondingly arranged in the box body (6), a rectangular counter bore table (6-1-1) is arranged on the front cover plate (6-1) corresponding to each circuit board (1), a small panel (5) which is installed in a matched mode is arranged on one side face of each counter bore table (6-1), a boss is arranged on one side face of each small panel (5) opposite to the circuit board (1), three threaded holes are corresponding to three light holes which are arranged on the front edge of the circuit board (1), each circuit board (1) and each circuit board (1) is correspondingly provided with a reinforcing component (7), and each driving component (4) comprises a wedge-shaped locking component, and a universal component (7) which is arranged on the front cover plate (1), the upper edge and the lower edge of a side surface of a circuit board (1) in a box body (6) are arranged by the lower two wedge-shaped locking assemblies (2), the upper locking driving assembly and the lower locking driving assembly (4) are arranged at the upper part and the lower part of a small panel (5), the small panel (5) and the circuit board (1) are connected through screws to form hard connection, the small panel (5) and the circuit board (1) are connected into an integral module, and the wedge-shaped locking assemblies (2) of each set of circuit board reinforcing mechanism (7) and the locking driving assemblies (4) are connected through universal transmission assemblies (3) to form dynamic connection, wherein:
Each wedge-shaped locking assembly (2) comprises a fixed wedge block (2-1) arranged on a circuit board (1), a front movable wedge block (2-2) and a rear movable wedge block (2-3) which are arranged at the front end and the rear end of the fixed wedge block (2-1), the front end of a locking shaft (2-4) in the fixed wedge block (2-1) penetrates through a light hole of the front movable wedge block (2-2), the rear end of the locking shaft (2-4) is screwed into a threaded hole of the rear movable wedge block (2-3), and the matching surface between the fixed wedge block (2-1) and the front movable wedge block (2-2) and between the rear movable wedge block (2-3) is a wedge surface which can enable the front movable wedge block (2-2) and the rear movable wedge block (2-3) to laterally move under the driving of the locking shaft (2-4);
Each universal transmission assembly (3) comprises a front universal cross shaft (3-2) and a rear universal cross shaft (3-3) which are connected through a middle shaft (3-1), and the rear universal cross shafts (3-3) are connected with the front ends of the locking shafts (2-4);
Each locking driving assembly (4) comprises a square flange plate (4-1) arranged on a small panel (5), a driving shaft (4-2) is arranged in a bearing seat (4-3) at the rear end of the square flange plate (4-1) through a bearing (4-4), the rear end of the driving shaft (4-2) is connected with a front universal cross shaft (3-2), and the front end of the driving shaft (4-2) provided with a hexagon socket (4-5) is arranged in a central hole of the square flange plate (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911154398.3A CN110996598B (en) | 2019-11-22 | 2019-11-22 | Reinforcing device capable of directly locking circuit board outside box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911154398.3A CN110996598B (en) | 2019-11-22 | 2019-11-22 | Reinforcing device capable of directly locking circuit board outside box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110996598A CN110996598A (en) | 2020-04-10 |
| CN110996598B true CN110996598B (en) | 2024-04-19 |
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ID=70085836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911154398.3A Active CN110996598B (en) | 2019-11-22 | 2019-11-22 | Reinforcing device capable of directly locking circuit board outside box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110996598B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329333A (en) * | 2014-08-29 | 2015-02-04 | 中航光电科技股份有限公司 | Wedged locking device and case using wedged locking device |
| CN104808748A (en) * | 2015-03-31 | 2015-07-29 | 天津泽峻科技有限公司 | Ruggedized computer case |
| CN106659050A (en) * | 2017-03-06 | 2017-05-10 | 中航光电科技股份有限公司 | Wedge-shaped locking device, electrical module assembly employing locking device and cabinet |
| CN207543457U (en) * | 2017-11-07 | 2018-06-26 | 武汉华伍航空科技有限公司 | A kind of device convenient for circuit board in loading and unloading aircrafts |
| CN211297408U (en) * | 2019-11-22 | 2020-08-18 | 中国电子科技集团公司第三十四研究所 | Reinforcing device capable of directly locking circuit board outside box |
-
2019
- 2019-11-22 CN CN201911154398.3A patent/CN110996598B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329333A (en) * | 2014-08-29 | 2015-02-04 | 中航光电科技股份有限公司 | Wedged locking device and case using wedged locking device |
| CN104808748A (en) * | 2015-03-31 | 2015-07-29 | 天津泽峻科技有限公司 | Ruggedized computer case |
| CN106659050A (en) * | 2017-03-06 | 2017-05-10 | 中航光电科技股份有限公司 | Wedge-shaped locking device, electrical module assembly employing locking device and cabinet |
| CN207543457U (en) * | 2017-11-07 | 2018-06-26 | 武汉华伍航空科技有限公司 | A kind of device convenient for circuit board in loading and unloading aircrafts |
| CN211297408U (en) * | 2019-11-22 | 2020-08-18 | 中国电子科技集团公司第三十四研究所 | Reinforcing device capable of directly locking circuit board outside box |
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| Publication number | Publication date |
|---|---|
| CN110996598A (en) | 2020-04-10 |
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