CN104185400B - The fixing device and airborne equipment of vehicle-mounted printed circuit board - Google Patents
The fixing device and airborne equipment of vehicle-mounted printed circuit board Download PDFInfo
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- CN104185400B CN104185400B CN201410269757.0A CN201410269757A CN104185400B CN 104185400 B CN104185400 B CN 104185400B CN 201410269757 A CN201410269757 A CN 201410269757A CN 104185400 B CN104185400 B CN 104185400B
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- circuit board
- printed circuit
- bottom plate
- fixing device
- lock
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- Mounting Of Printed Circuit Boards And The Like (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention relates to the airborne equipments of a kind of fixing device of vehicle-mounted printed circuit board and this fixing device of use.The fixing device includes being configured to the fixation bottom plate of plate, the two sides of the fixed bottom plate are provided with opposite the first side shield and the second side shield, to limit the lateral movement of printed circuit board, the rear end of the fixed bottom plate is provided with rear baffle, and the front end of the fixed bottom plate is provided with lock, the rear baffle and the snap fit to limit before and after the printed circuit board to movement.Reliability is high when installing vehicle-mounted printed circuit board using this fixing device, and dismounting easy to repair.
Description
Technical field
The present invention relates to mobile unit technical field, more particularly to a kind of fixing device of vehicle-mounted printed circuit board.In addition,
The invention further relates to a kind of airborne equipments including above-mentioned fixing device.
Background technology
With the development of rail traffic vehicles, mobile unit develops towards miniaturization, lightweight direction, is thus set to vehicle-mounted
More stringent requirements are proposed for standby installation space and service clearance.Such as module driver, filtering unit control panel, DCU control
An important component of the printed circuit boards such as circuit board processed as mobile unit, usual printed circuit board include capacitance, resistance, electricity
Feel constant power element, in the course of work, these power devices will produce thermal losses.In addition, printed circuit board is generally using flat
Structure, this structure during vibrations, if fixation it is not firm, be easier to generate resonance, due to thermal losses, resonance or by
The reasons such as the impact arrived, the printed circuit board in work will appear failure and need repairing, or even replace, and still, repair is empty
Between it is not abundant.In addition, the rail transportation vehicle-mounted equipment that GB/T21563 is proposed need to meet vibrations and the requirement of shock environment, with
This improves the service life of printed circuit board, it is ensured that the safe operation of locomotive.
Printed circuit board mounting means is more at present, and wherein the fixed mode of bolt is that printed circuit board is straight by bolt
It connects and is fixed on mobile unit.This fixed form can buffer vibrations and shock problem suffered by printed circuit board, still
This fixed form makes the repair of printed circuit board inconvenient, and when in particular for replacing printed circuit board, needing will be airborne
After equipment integral demounting, printed circuit board could be replaced, occupy larger service clearance and spends more maintenance time.
Therefore, it is badly in need of a kind of fixing device of high, the dismounting easy to repair vehicle-mounted printed circuit board of reliability.
Invention content
For above-mentioned problem, the present invention proposes a kind of fixing device of vehicle-mounted printed circuit board, using this fixation
Device installs vehicle-mounted Reliability of PCB height, and convenient for the repair demolition of vehicle-mounted printed circuit board.In addition the present invention is gone back
It is related to a kind of mobile unit including the fixing device.
According to the first aspect of the invention, it is proposed that a kind of fixing device of vehicle-mounted printed circuit board, including it is configured to plate
The two sides of the fixation bottom plate of shape, fixed bottom plate are provided with opposite the first side shield and the second side shield, to limit printing
The rear end of the lateral movement of circuit board, fixed bottom plate is provided with rear baffle, and the front end of fixed bottom plate is provided with lock, rear to keep off
Plate and snap fit are to limit before and after printed circuit board to movement.
When fixing device using the present invention fixes printed circuit board circuit board by the first side shield, the second side shield, after
Baffle and lock are limited on fixed bottom plate, and thus printed circuit can preferably bear to shake and impact, to a certain degree
On improve printed circuit board performance, and extend the service life of printed circuit board.Lock is opened when repairing in addition,
Printed circuit board is taken out, it is easy to operate, it is easy to repair.
In one embodiment, lock is configured to tilt towards rear baffle, and the top of lock is formed with crook, with limitation
Printed circuit board moves up.Thus pressing lock towards fixed bottom plate when needing repairing or replacing printed circuit board can
To take out printed circuit board.In addition the setting of crook limits the shifting that printed circuit board is directed away from the direction of fixed bottom plate
It is dynamic, the reliability of fixing device is improved, ensures being reliably fixed for printed circuit board.
In one embodiment, it is arranged on the side wall towards printed circuit board of the first side shield and/or the second side shield
There is guide groove, for the guiding of printed circuit board.When printed circuit board is attached on fixed bottom plate, the side of printed circuit board
It is inserted into guide groove, therefore ensures that the smooth installation of printed circuit board, in addition guide groove further limits printed circuit board
Lateral movement and moving up and down perpendicular to fixed bottom plate, improve the fixed reliability of printed circuit board.It is excellent at one
Downwardly convex press strip is formed in the embodiment of choosing, above guide groove, to compress printed circuit board.When printed circuit board is attached to
Press strip compresses printed circuit board when on fixed bottom plate, further increases the fixed reliability of printed circuit board.
In one embodiment, be provided with spring assembly on rear baffle comprising spring part can with snap fit with
Printed circuit board is limited to be moved forward and backward.It is limited when printed circuit board can be allow to be fixed on fixed bottom plate using this spline structure
The back-and-forth motion of printed circuit board processed, in addition when needing the when of taking out printed circuit board to press lock, spring part can be by printed circuit
Plate pops up forward, is conducive to the repair of printed circuit board, saves maintenance time.
In one embodiment, spring part is set on the side wall towards printed circuit board of rear baffle, for holding out against
Printed circuit board.Printed circuit board compression spring member when thus installing printed circuit board, printed circuit board are installed to fixed bottom plate
Spring part holds out against printed circuit board when upper, thus when taking out printed circuit board, spring part can by the rapid spring of printed circuit board,
Save maintenance time.
In one embodiment, fixed bottom plate injection molding.Relative to metal, plastics have the same of certain structural strength
When also there is certain elasticity, absorption vibrations and impact that can be more preferably protect printed circuit board, improve printing electricity
The service life of road plate and the reliability of work.
In one embodiment, the quantity of lock is 2, and lock is respectively arranged at close to the first side shield and the second side block
Plate.It is separately positioned on close to the position of the first side shield and the second side shield using 2 locks, is reliably limiting printed circuit
Under the premise of plate moves forward, increase service clearance, is convenient for the timely exclusion of printed circuit board failure.
In one embodiment, the front end of fixed bottom plate is provided with multiple for fixing the logical of the wiring of printed circuit board
Hole.The fastening that the wiring to printed circuit board can be realized by these through-holes, improves the reliability of printed circuit board installation.
In one embodiment, recess is formed between the through-hole on fixed bottom plate.Thus it is convenient for the installation of printed circuit board
And taking-up.
According to the second aspect of the invention, it is proposed that a kind of mobile unit comprising according to fixing device described above.
Since above-mentioned fixing device has the advantages that reliability is high, easy to repair, then the mobile unit of the present invention correspondingly also has
Reliability is high, the advantages of convenient for safeguarding.
In this application, for convenience of description, directional terminology "front", "rear" is used, wherein the rear baffle of fixed bottom plate
Location is located proximate to front where below, latching.But front and rear mentioned here does not represent fixed dress
The orientation on airborne equipment is set, is not thus construed as limiting the invention.
Compared with the prior art, the advantages of the present invention are as follows, fixing devices of the invention to pass through the first side for being arranged thereon
Baffle, the second side shield, rear baffle and lock install printed circuit board to fixed bottom plate, improve printed circuit board peace
The reliability of dress.In addition, the taking-up of printed circuit board, operation easy to repair can be realized by opening lock.Preferably, it latches
Top be formed with crook, thus limit printed circuit board and moved to the direction far from fixed bottom plate.Further, the first side
The guide groove that the when of being installed for printed circuit board is oriented to, and the top setting of guide groove are provided on baffle and the second side shield
There is press strip, printed circuit board is compressed with this.In addition, being provided with the spring part for holding out against printed circuit board on rear baffle, press
Printed circuit board is popped up by spring part after lock, is convenient for the dismounting of printed circuit board with this.In addition fixed bottom plate, which uses, is molded into
Type, fixed when thus printed circuit board is mounted on fixed bottom plate bottom plate can damping vibration and impact, improve printed circuit board
Functional reliability, and extend the service life of printed circuit board.
Description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 is the fixing device and printed circuit board of vehicle-mounted printed circuit board according to a preferred embodiment of the present invention
General assembly schematic diagram；
Fig. 2 is the schematic diagram of fixing device shown in Fig. 1；
Fig. 3 is the lock and printed circuit board of fixing device when printed circuit board shown in Fig. 1 is installed to fixing device
Structural schematic diagram；
Fig. 4 is that printed circuit board shown in Fig. 1 is installed to fixing device, and fixing device is inserted into the side of printed circuit board
Schematic diagram in guide groove.
Identical component is indicated by identical reference numeral in the figure.Attached drawing is not drawn according to actual ratio.
Specific implementation mode
Below in conjunction with attached drawing, the present invention will be further described.
The fixing device of vehicle-mounted printed circuit board provided by the invention includes fixed bottom plate 1, is provided on the fixation bottom plate 1
Other component is to fix printed circuit board.The fixing device and its all parts of the present invention will be described in detail belows.
As depicted in figs. 1 and 2, the fixation bottom plate 1 that fixing device includes is configured to plate, thus in the fixed printing electricity of installation
Space is saved as much as possible under the premise of the plate of road, in favor of airborne equipment miniaturization, light-weighted demand.As shown, fixed
The two sides of bottom plate 1 are provided with opposite the first side shield 10 and the second side shield 20, thus when printed circuit board is mounted on admittedly
When determining on bottom plate, printed circuit board 2 is constrained positioned at the first side shield 10 of printed circuit board both sides and the second side shield 20
Lateral movement, it is preferable that the distance between the first side shield 10 and the second side shield 20 are slightly larger than the lateral length of printed circuit board
Degree, can just retain printed circuit board.In addition, the rear end of fixed bottom plate 1 is provided with rear baffle 30, fixed bottom plate 1
Front end is provided with lock 40, and rear baffle 30 and 40 cooperation of lock are to limit before and after printed circuit board 2 to movement.Preferably, after
The distance between baffle 30 and lock 40 are slightly larger than the sagittal length of printed circuit board, and thus, it is possible to just retain printing
Circuit board.
As preferred embodiment, as shown in figures 1 and 3, lock 40 is tilted towards rear baffle 30, thus when loading is printed
It is existing when circuit board 2 that the side of printed circuit board 2 is resisted against on lock 40,40 angles tilted by forward power are latched at this time
Degree becomes larger, and when being finally resisted against printed circuit board 2 on rear baffle 30, the power that lock 40 is subject to reduces, but nevertheless suffers from print
The power that circuit board 2 processed applies, correspondingly, lock 40 give the power of printed circuit board 2 backward to limit its forward movement.Further
Ground, as shown in figure 3, the top of lock 40 is formed with crook 41, it is hook-shaped when printed circuit board is mounted on fixed bottom plate 1
Portion resists printed circuit board 2, is moved up with limiting printed circuit board 2.
Preferably, it is provided with and leads on the side wall towards printed circuit board 2 of the first side shield 10 and/or the second side shield 20
To slot, as depicted in figs. 1 and 2, guide groove 11, and are provided on the side wall towards printed circuit board of the first side shield 10
It is also equipped with guide groove on the side wall towards printed circuit board 2 of two side shields 20, is thus given from the both sides of printed circuit board 2
It is oriented to during the installation process.In a preferred embodiment, as shown in Figure 2 and Figure 4, the top of guide groove 11 is formed oriented
Under convex press strip 12, when printed circuit board 2 is mounted on fixed bottom plate 1, the two sides of printed circuit board 2 are inserted into guide groove
When, press strip 12 compresses printed circuit board 2.
It should be noted that the fixation bottom plate in the present invention uses injection molding, fixed bottom plate 1, guide groove 11, press strip 12
And lock 40 can be integrally formed.The lower section of lock 40 is corresponding groove 42, convenient for pressing for lock 40.Used modeling
Expect that material is but to be no lack of certain elasticity, for example, ABS plastic, PC-GF20 engineering plastics, PA66-GF25 with some strength
Plastics or PA66-GF35 plastics.
As depicted in figs. 1 and 2, spring assembly 31 is provided on rear baffle 30, spring assembly 31 can make arbitrary structures,
As long as when printed circuit board is mounted on fixed bottom plate 1 comprising spring part 32 with 40 cooperation of lock to retain printing
Circuit board 2 prevents printed circuit board 1 to be moved forward and backward.
As shown in Fig. 2, spring part 32 is arranged on the side wall towards printed circuit board 2 of rear baffle 30, thus work as printing
When circuit board 2 is mounted on fixed bottom plate, spring part 32 and snap fit hold out against printed circuit board 2.
The quantity of lock can be arranged as required to multiple, it is preferable that the quantity for latching 40 is 2, and lock 40 is set respectively
It sets close to the first side shield 10 and the second side shield 20.
In addition, as depicted in figs. 1 and 2, the front end of fixed bottom plate 1 is provided with multiple for fixing connecing for printed circuit board 2
The through-hole 50 of line.Further, recess 60 is formed between the through-hole 50 on fixed bottom plate 1.Thus it is convenient for the peace of printed circuit board 2
Dress and taking-up.In addition, fixed bottom plate 1 can be bolted to by the multiple mounting holes 70 being arranged thereon in cabinet.
Further it is proposed that mobile unit include according to fixing device described above, so that mobile unit
Reliability in the process of running is improved, it is ensured that the safe failure-free operation of vehicle.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.The invention is not limited in Wen Zhonggong
The specific embodiment opened, but include all technical solutions fallen within the scope of the appended claims.
Claims (7)
1. a kind of fixing device of vehicle-mounted printed circuit board, which is characterized in that the fixation bottom plate including being configured to plate, it is described solid
The two sides for determining bottom plate are provided with opposite the first side shield and the second side shield, to limit the lateral shifting of printed circuit board
Dynamic, the rear end of the fixed bottom plate is provided with rear baffle, and the front end of the fixed bottom plate is provided with lock, the rear baffle
With the snap fit to limit before and after the printed circuit board to movement；
It is provided with guiding on the side wall of the direction printed circuit board of first side shield and/or second side shield
Slot is formed with downwardly convex press strip for the guiding of the printed circuit board above the guide groove, to compress the print
Circuit board processed；
Be provided with spring assembly on the rear baffle comprising spring part the printing can be limited with the snap fit
Circuit board is moved forward and backward；
The lock is configured to tilt towards the rear baffle, and the top of the lock is formed with crook, to limit the print
Circuit board processed moves up.
2. fixing device according to claim 1, which is characterized in that the spring part is set to the direction of the rear baffle
On the side wall of the printed circuit board, for holding out against the printed circuit board.
3. fixing device according to claim 1 or 2, which is characterized in that the fixed bottom plate injection molding.
4. fixing device according to claim 3, which is characterized in that the quantity of the lock is 2, the lock difference
It is disposed in proximity to first side shield and second side shield.
5. fixing device according to claim 4, which is characterized in that the front end of the fixed bottom plate is provided with multiple be used for
The through-hole of the wiring of the fixed printed circuit board.
6. fixing device according to claim 5, which is characterized in that formed between the through-hole on the fixed bottom plate
Recess.
7. a kind of mobile unit, which is characterized in that including fixing device according to any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269757.0A CN104185400B (en) | 2014-06-17 | 2014-06-17 | The fixing device and airborne equipment of vehicle-mounted printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269757.0A CN104185400B (en) | 2014-06-17 | 2014-06-17 | The fixing device and airborne equipment of vehicle-mounted printed circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104185400A CN104185400A (en) | 2014-12-03 |
| CN104185400B true CN104185400B (en) | 2018-09-18 |
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ID=51966029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410269757.0A Active CN104185400B (en) | 2014-06-17 | 2014-06-17 | The fixing device and airborne equipment of vehicle-mounted printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104185400B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064610A (en) * | 2018-08-13 | 2018-12-21 | 郭芳利 | A kind of smart home access control device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1365598A (en) * | 2000-04-04 | 2002-08-21 | 松下电器产业株式会社 | Printed circuit board holding structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6709276B2 (en) * | 2001-08-29 | 2004-03-23 | International Business Machines Corporation | Pluggable planar board |
| US6556446B1 (en) * | 2001-12-13 | 2003-04-29 | Hon Hai Precision Ind. Co., Ltd. | Optoelectronic transceiver module assembly |
| JP2004178824A (en) * | 2002-11-25 | 2004-06-24 | Nec Engineering Ltd | Fixing mechanism of information recording medium |
| DE102007046913A1 (en) * | 2007-09-28 | 2009-04-09 | Robert Bosch Gmbh | Sealable printed circuit board housing and printed circuit board for use in the printed circuit board housing |
| CN103429041A (en) * | 2013-07-26 | 2013-12-04 | 徐州云泰汽车电器有限公司 | Controller structure for electric vehicle motor and assembly method thereof |
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2014
- 2014-06-17 CN CN201410269757.0A patent/CN104185400B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1365598A (en) * | 2000-04-04 | 2002-08-21 | 松下电器产业株式会社 | Printed circuit board holding structure |
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| Publication number | Publication date |
|---|---|
| CN104185400A (en) | 2014-12-03 |
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Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |