CN107995811A - Fixing device for automobile power back door ECU control mainboards - Google Patents
Fixing device for automobile power back door ECU control mainboards Download PDFInfo
- Publication number
- CN107995811A CN107995811A CN201711445805.7A CN201711445805A CN107995811A CN 107995811 A CN107995811 A CN 107995811A CN 201711445805 A CN201711445805 A CN 201711445805A CN 107995811 A CN107995811 A CN 107995811A
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- Prior art keywords
- shell
- mainboard
- trapezoid shell
- fixing device
- hole
- Prior art date
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- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 230000017525 heat dissipation Effects 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 239000004425 Makrolon Substances 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- 229920005549 butyl rubber Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 229920003049 isoprene rubber Polymers 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
- H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
- H05K5/006—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by features for holding the PCB within the housing
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
- H05K5/0069—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having connector relating features for connecting the connector pins with the PCB or for mounting the connector body with the housing
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a kind of fixing device for automobile power back door ECU control mainboards,Including shell,Shell divides upper trapezoid shell and lower trapezoid shell,Upper trapezoid shell is used cooperatively with lower trapezoid shell,Receiving space is equipped between upper trapezoid shell and lower trapezoid shell,Mainboard is placed in the receiving space,Four corners of mainboard offer through hole respectively,Upper trapezoid shell and lower trapezoid shell offer corresponding through hole,The inner wall of through hole is carved with screw thread,Through hole is threadedly coupled with fixed screw,Through hole is equal with the quantity of fixed screw,The lower end of lower trapezoid shell is equipped with the fixed column being threadedly coupled with fixed screw,Fixed column offers to house the threaded hole of fixed screw,The side of upper trapezoid shell is equipped with some cable holes,Window and a data status monitoring window are downloaded in one debugging,The upper surface of upper trapezoid shell is equipped with heat dissipation hydrofuge window.The fixing device of the present invention facilitates mainboard heat dissipation hydrofuge, upgrades beneficial to the mainboard program later stage and safeguards, stable structure.
Description
Technical field
The present invention relates to automobile tail gate equipment technical field, is used for automobile power back door ECU more particularly to one kind and controls
The fixing device of mainboard.
Background technology
The automotive internal ECU control systems that people drive in life, ECU control systems include mainboard, and mainboard is equipped with micro-
Processor, eeprom circuit module, high-speed CAN transceiver, the first bridge-type motor drive module, inside chip power supply circuit module
Etc. function module.Since mainboard own wt is big, power is high, and automobile mainboard temperature during tail-gate is opened is higher, easily makes
Mainboard casing deformation, structural instability are obtained, driving road jolts, and causes the signal line loose contact on mainboard and component to take off
Fall, mainboard temperature is sometimes hot and sometimes cold with the changed power of the traveling of automobile in addition, and easily liquefaction forms condensed water and is covered on mainboard, leads
Cause the component damage on main plate short or mainboard.Therefore demand one can fixed car electric tail gate ECU control mainboards, and
The fixing device for playing the role of radiating and humidifying is most important.
China Patent No. CN102799232A discloses a kind of main board fixing device, for mainboard is fixed in cabinet,
Cabinet has the first side wall, has some through holes on the first side wall, main board fixing device include first fixed strip, one the
Two fixed strips and two handles being articulated respectively with the first fixed strip and the second fixed strip, the first fixed strip include it is parallel and
Every the first tablet, the second tablet and the 3rd tablet of setting, there is a sliding slot between the first tablet and the second tablet, second is solid
Determining bar includes vertical bottom plate and side plate, and the 3rd tablet and bottom plate opposing through-bores are respectively provided with the first hook, have direction on side plate
Second hook of bottom plate, the first hook, which is fastened in through hole, makes the first fixed strip and the second fixed strip be fixed on the first side wall,
Mainboard is fixed between the first fixed strip, the second fixed strip, handle.
Although above-mentioned main board fixing device can realize mainboard fixed function, problems with is still had：
First, above-mentioned main board fixing device lacks debugging download window and data status monitoring window, and event occurs in mainboard program
Barrier, easy care, does not replace mainboard high cost, later stage mainboard scaling difficulty, maintenance cost height；
2nd, above-mentioned main board fixing device lacks heat dissipation hydrofuge window, and mainboard is placed in the same space with other equipment, vapour
Car mainboard during tail-gate is opened can distribute amount of heat, and be changed correspondingly with the size of power of vehicle, the heat of generation
It is not easy to discharge with steam, easily causes mainboard and other equipment short circuit or electronic component damage；
3rd, above-mentioned main board fixing device lacks heat-dissipating space, and mainboard is close to the first side wall, and heat-dissipating space is narrow and small, not compared with
The heat that big space mainboard gives out.
In order to overcome drawbacks described above, the positive innovation research of those skilled in the art, to create a kind of motorcar electric tail
Door ECU control mainboards and ECU main board fixing devices.
The content of the invention
In view of the problems of the existing technology, the present invention provides a kind of consolidating for automobile power back door ECU control mainboards
Determine device, after the ECU control mainboard fixing devices, the shell that upper trapezoid shell and lower trapezoid shell are formed can accommodate automobile
The heat that mainboard produces when electric tail gate is run, the side of upper trapezoid shell are equipped with debugging and download window and data status monitoring window
Mouthful, facilitate emulator and serial ports modular converter grafting, be conducive to the upgrading of later stage mainboard program and safeguard, improve malfunction elimination effect
Rate, while the upper surface of upper shell is equipped with heat dissipation hydrofuge window, beneficial to mainboard heat dissipation hydrofuge, avoids main plate short and electronics member device
Part damages.
In order to solve the above technical problems, one aspect of the present invention is：
A kind of fixing device for automobile power back door ECU control mainboards, including shell are provided, the shell includes upper
Trapezoidal enclosure and lower trapezoid shell, the upper trapezoid shell are used cooperatively with the lower trapezoid shell, the upper trapezoid shell with
Receiving space is equipped between the lower trapezoid shell, mainboard is arranged in the receiving space, four corners point of the mainboard
Do not offer through hole, the upper trapezoid shell and the lower trapezoid shell offer corresponding through hole, the through hole it is interior
Wall is carved with screw thread, and the through hole is threadedly coupled with fixed screw, and the through hole is equal with the quantity of fixed screw, the lower trapezoid
The lower end of shell is equipped with the fixed column being threadedly coupled with the fixed screw, and the fixed column offers to house the fixation
The threaded hole of screw, the side of the upper trapezoid shell are equipped with some cable holes, a debugging download window and a data shape
State monitors window, and the upper surface of the upper trapezoid shell is equipped with heat dissipation hydrofuge window.
Further say, the surrounding edge of the upper surface of the lower surface of the upper trapezoid shell and the lower trapezoid shell is all
Insulating buffer layer is equipped with, the insulating buffer layer is natural rubber, isoprene rubber, neoprene, butyl rubber and the fine rubber of fourth
One kind in glue.
Further say, the mainboard is equipped with microprocessor, eeprom circuit module, high-speed CAN transceiver, the first bridge
Formula motor drive module, inside chip power supply circuit module, power source reverse connection protection circuit module, high terminal voltage drive module,
Two bridge-type motor drive modules, the debugging download interface for emulator grafting and the data shape for serial ports modular converter grafting
State monitors interface.
Further say, the debugging downloads window and is equipped with the first matching protection cap, the data mode monitoring
Window is equipped with the second matching protection cap, and the size of the debugging download interface downloads the size one of window with the debugging
Cause, the size of the data mode monitoring interface is consistent with the size of data mode monitoring window.
Further to say, the input terminal of the debugging download interface is electrically connected with the output terminal of the high-speed CAN transceiver,
The input terminal of the data mode monitoring interface is electrically connected with the output terminal of the high-speed CAN transceiver, the high-speed CAN transmitting-receiving
The input terminal of device is electrically connected with the output terminal of the microprocessor, the microprocessor and the debugging download interface and the number
The alternating transmission of data is carried out by the high-speed CAN transceiver according to status monitoring interface.
Further say, the microprocessor is at Cortex-M0 processors, Cortex-M3 processors and Cortex-M4
One kind in device is managed, the mainboard uses μ COS embedded real-time operating systems, and the microprocessor is equipped with 100 functional pins
With 32 ARM kernels, the highest crystal oscillator frequency of the microprocessor is 72MHz.
Further say, the shell, the fixed screw, first protection cap and second protection cap are all
At least one of ABS resin plastics, polyimide plastic, makrolon and polyester.
Further say, the mainboard is four layers of pcb board, and the pcb board is equipped with ground plane, and the ground plane includes described
The ground wire of bridge-type motor driving power supply module and the ground wire of the control circuit power supply module, the bridge-type motor driving power supply mould
The ground wire of block is mutually isolated with the ground wire of the control circuit power supply module, does not contact.
The beneficial effects of the invention are as follows：
First, ECU control mainboards fixing device of the invention is equipped with upper trapezoid shell, and the side of upper trapezoid shell is equipped with conveniently
Window is downloaded in emulator and the debugging of debugging download interface grafting, is additionally provided with and is facilitated serial ports modular converter to be connect with data mode monitoring
The data mode monitoring window of mouth grafting, facilitates later stage mainboard program to upgrade, maintenance cost is low, and mainboard program can monitor tune on-line
Examination, improves program mal investigation efficiency, program updating decision；
2nd, ECU control mainboards fixing device of the invention is equipped with heat dissipation hydrofuge window, and heat dissipation hydrofuge window is arranged on upper shell
Upper surface, be conducive to mainboard heat dissipation and dry, avoid the mainboard caused by heat is assembled from burning out, while evade the water that liquefaction is formed
Vapour is covered on mainboard and component, the risk for causing main plate short and electronic component to damage, and improves mainboard security and can
By property；
3rd, ECU main board fixing devices of the invention are equipped with shell, and shell includes upper trapezoid shell and lower trapezoid shell, on
Trapezoidal enclosure and lower trapezoid shell form accommodation space, the heat that mainboard produces when can accommodate automobile power back door operation, there is provided
Heat cushion space, reduces the risk of mainboard high temperature damage.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate attached drawing describe in detail as after.
Brief description of the drawings
Fig. 1 is the ECU main board fixing device front views of the present invention；
Fig. 2 is the ECU main board fixing device top views of the present invention；
Fig. 3 is the ECU main board fixing device left views of the present invention；
Fig. 4 is the control principle drawing of the ECU control mainboards of the present invention；
Each several part mark is as follows in attached drawing：
Shell 1, upper trapezoid shell 1-1, lower trapezoid shell 1-2, receiving space 2, mainboard 3, microprocessor 3-1, high-speed CAN
Under transceiver 3-2, debugging download interface 3-3, data mode monitoring interface 3-4, fixed screw 4, fixed column 5, cable hole 6, debugging
Carry window 7, data mode monitoring window 8, heat dissipation hydrofuge window 9, the first protection cap 10, the second protection cap 11, insulating buffer layer
12nd, through hole 13, emulator 14 and serial ports modular converter 15.
Embodiment
Illustrate the embodiment of the present invention below by way of particular specific embodiment, those skilled in the art can be by this
The revealed content of specification understands advantages of the present invention and effect easily.The present invention can also other different modes give
Implement, i.e. without departing substantially under the scope of disclosed, different modification and change can be given.
Embodiment：A kind of fixing device for automobile power back door ECU control mainboards, as Figure 1-Figure 4, including it is outer
Shell 1, the shell includes upper trapezoid shell 1-1 and lower trapezoid shell 1-2, the upper trapezoid shell are matched somebody with somebody with the lower trapezoid shell
Close and use, receiving space 2 is equipped between the upper trapezoid shell and the lower trapezoid shell, it is empty that mainboard 3 is arranged at the collecting
In, four corners of the mainboard offer through hole 13 respectively, and the upper trapezoid shell and the lower trapezoid shell offer
Corresponding through hole, the inner wall of the through hole are carved with screw thread, and the through hole is threadedly coupled with fixed screw 4, the through hole with
The quantity of fixed screw is equal, and the lower end of the lower trapezoid shell is equipped with the fixed column 5 being threadedly coupled with the fixed screw, institute
State fixed column to offer to house the threaded hole 5-1 of the fixed screw, if the side of the upper trapezoid shell is equipped with main line
Window 7 and a data status monitoring window 8 are downloaded in the debugging of 6, one, cable hole, and the upper surface of the upper trapezoid shell is equipped with heat dissipation
Hydrofuge window 9.
The lower surface of the upper trapezoid shell and the surrounding edge of the upper surface of the lower trapezoid shell are all equipped with insulation
Cushion 12, the insulating buffer layer are one in natural rubber, isoprene rubber, neoprene, butyl rubber and nitrile rubber
Kind.
The mainboard is equipped with microprocessor 3-1, eeprom circuit module, high-speed CAN transceiver 3-2, the first bridge-type electricity
Machine drive module, inside chip power supply circuit module, power source reverse connection protection circuit module, high terminal voltage drive module, the second bridge
Formula motor drive module, the debugging download interface 3-3 for 14 grafting of emulator and the number for 15 grafting of serial ports modular converter
According to status monitoring interface 3-4.
The debugging downloads window and is equipped with the first matching protection cap 10, the data mode monitoring window equipped with
Matched second protection cap 11, it is described debugging download interface size with it is described debugging download window size it is consistent, it is described
The size of data mode monitoring interface is consistent with the size of data mode monitoring window.
The input terminal of the debugging download interface is electrically connected with the output terminal of the high-speed CAN transceiver, the data shape
The input terminal of state monitoring interface is electrically connected with the output terminal of the high-speed CAN transceiver, the input terminal of the high-speed CAN transceiver
It is electrically connected with the output terminal of the microprocessor, the microprocessor is monitored with the debugging download interface and the data mode
Interface carries out the alternating transmission of data by the high-speed CAN transceiver.
The microprocessor is one in Cortex-M0 processors, Cortex-M3 processors and Cortex-M4 processors
Kind, the mainboard uses μ COS embedded real-time operating systems, and the microprocessor is equipped with 100 functional pins and 32 ARM
Kernel, the highest crystal oscillator frequency of the microprocessor is 72MHz.
The shell, the fixed screw, first protection cap and second protection cap be all ABS resin plastics,
At least one of polyimide plastic, makrolon and polyester.
The mainboard is four layers of pcb board, and the pcb board is equipped with ground plane, and the ground plane drives including the bridge-type motor
The ground wire of dynamic power supply module and the ground wire of the control circuit power supply module, the ground wire of the bridge-type motor driving power supply module with
The ground wire of the control circuit power supply module is mutually isolated, does not contact.
The course of work and operation principle of the present invention is as follows：
The fixing device for automobile power back door ECU control mainboards of the present invention, including shell, shell by upper trapezoid outside
Shell and lower trapezoid shell are formed, and upper trapezoid shell forms accommodation space with lower trapezoid shell, there is provided and heat stores cushion space,
ECU control mainboards are put in receiving space, and four corners open up through hole respectively on the edge of shell and mainboard, use fixed screw
It is fixed and tightens, the lower end of lower trapezoid shell is equipped with fixed column, and fixed column opens up threaded hole, and is threadedly coupled with fixed screw
It is fixed；ECU control mainboards are equipped with debugging download interface and data status monitoring interface and corresponding protection cap, exterior for convenience
Emulator and serial ports modular converter carry out communication with ECU mainboards and are connected, therefore are equipped with corresponding tune in the side of upper trapezoid shell
Window and data status monitoring window are downloaded in examination；The upper surface of upper trapezoid shell is equipped with heat dissipation hydrofuge window, contributes to shell
The heat that internal mainboard comes out effectively is discharged, and avoids hyperthermia and superheating, causes the component on mainboard or mainboard to burn out；
The outer surface of shell is equipped with some cable holes, facilitates mainboard cable wiring；
ECU control mainboards use μ COS embedded real-time operating systems, micro- place using the microprocessor of 32 ARM kernels
Reason device is equipped with 100 functional pins, and highest crystal oscillator frequency be 72MHz, ECU control mainboards equipped with high-speed CAN transceiver with
Microprocessor, high-speed CAN transceiver are interacted and communicated with debugging download interface, data mode monitoring interface, and debugging download connects
Mouth is connected with emulator, and data mode monitoring interface is electrically connected with serial ports modular converter, microprocessor and high-speed CAN transceiver electricity
Connection, realizes the alternating transmission of data.
The foregoing is merely the embodiment of the present invention, not thereby the foregoing is merely the embodiment of the present invention, not because
This limitation the present invention the scope of the claims, every equivalent structure made using description of the invention and accompanying drawing content, or directly or
Other related technical areas are used in indirectly, are included within the scope of the present invention.
Claims (8)
- A kind of 1. fixing device for automobile power back door ECU control mainboards, it is characterised in that：It is described outer including shell (1) Shell includes upper trapezoid shell (1-1) and lower trapezoid shell (1-2), and the upper trapezoid shell coordinates with the lower trapezoid shell and makes With, be equipped with receiving space (2) between the upper trapezoid shell and the lower trapezoid shell, mainboard (3) be arranged at it is described house it is empty In, four corners of the mainboard offer through hole (13) respectively, and the upper trapezoid shell and the lower trapezoid shell open up There is corresponding through hole, the inner wall of the through hole is carved with screw thread, and the through hole is threadedly coupled with fixed screw (4), described logical Hole is equal with the quantity of fixed screw, and the lower end of the lower trapezoid shell is equipped with the fixed column being threadedly coupled with the fixed screw (5), the fixed column offers to house the threaded hole (5-1) of the fixed screw, and the side of the upper trapezoid shell is set There are some cable holes (6), a debugging to download window (7) and a data status monitoring window (8), the upper trapezoid shell Upper surface is equipped with heat dissipation hydrofuge window (9).
- 2. the fixing device according to claim 1 for automobile power back door ECU control mainboards, it is characterised in that：Institute The surrounding edge for stating the lower surface of upper trapezoid shell and the upper surface of the lower trapezoid shell is all equipped with insulating buffer layer (12), The insulating buffer layer is one kind in natural rubber, isoprene rubber, neoprene, butyl rubber and nitrile rubber.
- 3. the fixing device according to claim 1 for automobile power back door ECU control mainboards, it is characterised in that：Institute Mainboard is stated equipped with microprocessor (3-1), eeprom circuit module, high-speed CAN transceiver (3-2), the driving of the first bridge-type motor Module, inside chip power supply circuit module, power source reverse connection protection circuit module, high terminal voltage drive module, the second bridge-type motor Drive module, the debugging download interface (3-3) for emulator (14) grafting and the number for serial ports modular converter (15) grafting According to status monitoring interface (3-4).
- 4. the fixing device according to claim 1 for automobile power back door ECU control mainboards, it is characterised in that：Institute State debugging download window and be equipped with matching the first protection cap (10), the data mode monitoring window is equipped with matching Second protection cap (11), the size of the debugging download interface is consistent with the size that window is downloaded in the debugging, the data shape The size of state monitoring interface is consistent with the size of data mode monitoring window.
- 5. the fixing device according to claim 3 for automobile power back door ECU control mainboards, it is characterised in that：Institute The input terminal for stating debugging download interface is electrically connected with the output terminal of the high-speed CAN transceiver, and the data mode monitors interface Input terminal be electrically connected with the output terminal of the high-speed CAN transceiver, the input terminal of the high-speed CAN transceiver and micro- place The output terminal for managing device is electrically connected.
- 6. automobile power back door ECU control mainboards according to claim 3, it is characterised in that：The microprocessor is One kind in Cortex-M0 processors, Cortex-M3 processors and Cortex-M4 processors, the mainboard are embedded in using μ COS Formula real time operating system, the microprocessor are equipped with 100 functional pins and 32 ARM kernels, the highest of the microprocessor Crystal oscillator frequency is 72MHz.
- 7. the fixing device according to claim 1 for automobile power back door ECU control mainboards, it is characterised in that：Institute It is all ABS resin plastics, polyimides modeling to state shell, the fixed screw, first protection cap and second protection cap At least one of material, makrolon and polyester.
- 8. the fixing device according to claim 1 for automobile power back door ECU control mainboards, it is characterised in that：Institute It is four layers of pcb board to state mainboard, and the pcb board is equipped with ground plane, and the ground plane includes bridge-type motor driving power supply module Ground wire and the control circuit power supply module ground wire, the ground wire of bridge-type motor driving power supply module and the control electricity The ground wire of road power supply module is mutually isolated, does not contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445805.7A CN107995811A (en) | 2017-12-27 | 2017-12-27 | Fixing device for automobile power back door ECU control mainboards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445805.7A CN107995811A (en) | 2017-12-27 | 2017-12-27 | Fixing device for automobile power back door ECU control mainboards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107995811A true CN107995811A (en) | 2018-05-04 |
Family
ID=62042039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711445805.7A Pending CN107995811A (en) | 2017-12-27 | 2017-12-27 | Fixing device for automobile power back door ECU control mainboards |
Country Status (1)
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|---|---|
| CN (1) | CN107995811A (en) |
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| CN205958996U (en) * | 2016-08-12 | 2017-02-15 | 常州剑湖金城车辆设备有限公司 | Excrement collecting system controller |
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