CN111674261B - Automobile instrument panel based on micro-electromechanical accelerometer - Google Patents
Automobile instrument panel based on micro-electromechanical accelerometer Download PDFInfo
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- CN111674261B CN111674261B CN202010596722.3A CN202010596722A CN111674261B CN 111674261 B CN111674261 B CN 111674261B CN 202010596722 A CN202010596722 A CN 202010596722A CN 111674261 B CN111674261 B CN 111674261B
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- circuit board
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- vice
- electromechanical accelerometer
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- 230000010354 integration Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention discloses a vehicle instrument panel based on a micro-electromechanical accelerometer, which comprises a shell, a main circuit board, a secondary circuit board and a plurality of mounting columns connected with the inner side of the shell, wherein the mounting columns comprise an upper mounting column fixed with an upper shell and a lower mounting column fixed with a lower shell, the main circuit board is fixedly connected with the lower shell through the lower mounting column, the secondary circuit board is provided with a micro-electromechanical accelerometer and a working circuit of the micro-electromechanical accelerometer, the secondary circuit board is electrically connected with the main circuit board, and the secondary circuit board is connected with the mounting columns through springs. According to the invention, the micro-electromechanical accelerometer is reasonably combined with the vehicle instrument panel through the special mounting structure, so that the influence caused by vibration is reduced, the shock absorbing effect is achieved, the detection stability is improved, the service life is prolonged, and the integration of the precision sensor and the instrument panel is facilitated.
Description
Technical Field
The invention relates to the field of micro-electromechanical system application, in particular to a vehicle instrument panel based on a micro-electromechanical accelerometer.
Background
Microelectromechanical systems (Microelectromechanical System, MEMS) are an industrial technology that has fused microelectronics and mechanical engineering together, and the earliest microelectromechanical devices were described in 1966. The micro electromechanical accelerometer, the micro mechanical angular velocity meter and the like are mainly manufactured on a silicon wafer at the present stage, and the micro electromechanical sensor has the advantages of small volume, low power consumption, high reliability, good stability, low cost and easiness in mass production, so the micro electromechanical sensor is widely applied to the fields of automobile navigation and control systems, camera vibration elimination systems and the like. The invention such as the publication number CN107857231B discloses a micro-electromechanical accelerometer and a preparation method thereof.
However, the vehicle instrument panel is complicated in use environment, such as irregular vibration, large temperature and humidity change, and sometimes the accurate sensor cannot play a better role, so a new technology capable of effectively integrating the micro-electromechanical accelerometer and the traditional instrument panel is urgently needed.
Disclosure of Invention
Aiming at the problem that the integration effect of a vehicle instrument panel and a precise sensor in the prior art is poor, the invention provides the vehicle instrument panel based on the micro-electromechanical accelerometer, and unnecessary errors are reduced and the detection stability is improved through special sensor installation positions and modes.
The following is a technical scheme of the invention.
The utility model provides a vehicle instrument panel based on micro-electromechanical accelerometer, includes casing and main circuit board, still includes vice circuit board and connects a plurality of erection columns of casing inboard, a plurality of erection columns include with last erection column that the casing is fixed and with the lower erection column that the casing is fixed down, main circuit board passes through lower erection column fixed connection lower casing, be equipped with the work circuit of micro-electromechanical accelerometer and micro-electromechanical accelerometer on the vice circuit board, vice circuit board is connected with main circuit board electricity, and vice circuit board passes through the spring and is connected with the erection column. Through the spring as intermediate structure for the sub-circuit board is more flexible with being connected of the interior erection column of casing, plays the effect of moving away to avoid possible earthquakes, improves the stability that detects, does benefit to the integration of accurate sensor and panel board.
Preferably, the secondary circuit boards are connected with the corresponding mounting posts one to one through an even number of springs, and the upper mounting posts and the lower mounting posts respectively occupy half of the mounting posts. The upper mounting columns and the lower mounting columns respectively occupy half of the number, so that the auxiliary circuit board is in a dynamic balance state, and is not only subjected to one of spring tension or elastic force, the complexity of stress is improved, and a more stable effect is achieved.
Preferably, the micro-electromechanical accelerometer is arranged in the middle of the secondary circuit board, and a balancing weight is further arranged in the middle of the secondary circuit board. The balancing weight plays a role in not increasing weight, but ensuring that the gravity center is near the middle of the secondary circuit board, so that the movement track is smoother when vibration occurs. The specific position of the balancing weight depends on the spare space of the secondary circuit board.
Preferably, the number of springs connected with the secondary circuit board is four, one end of the secondary circuit board is connected with 2 upper mounting posts through 2 springs, and the other end of the secondary circuit board is connected with 2 lower mounting posts through 2 springs. Namely, one side is subjected to the tensile force of the spring, the other side is subjected to the elastic force of the spring, and the stress on the two sides can be less unbalanced in the vibration process, so that the secondary circuit board is slightly overturned, and the vibration amplitude of the central position of the secondary circuit board is reduced.
Preferably, the secondary circuit board is connected with the primary circuit board through a wire, and the connection point of the wire and the secondary circuit board is positioned in the middle of the secondary circuit board.
Preferably, in the springs connected to the secondary circuit board, the spring constant of the springs connected to the upper mounting posts is not equal to the spring constant of the springs connected to the lower mounting posts. After vibration, the secondary circuit board can be fluctuated under the action of tensile force or elasticity, and the secondary circuit board can slightly turn over during vibration due to unequal elastic coefficients, so that the vibration amplitude of the middle part is reduced.
The essential effects of the invention include: through special mounting structure, combine micro-electromechanical accelerometer with automobile-used panel board rationally, reduce the influence that vibration brought, improve the stability that detects, improve life, do benefit to and improve whole effect.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
the drawings include: 1-shell, 2-main circuit board, 3-erection column, 4-auxiliary circuit board, 5-display screen, 6-button.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In addition, numerous specific details are set forth in the following description in order to provide a better illustration of the invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, well known methods, procedures, components, and circuits have not been described in detail so as not to obscure the present invention.
Examples:
in order to facilitate highlighting the key points, the automobile instrument panel based on the micro-electromechanical accelerometer is shown in fig. 1 and 2, the automobile instrument panel does not affect the characteristics of the technical scheme, and comprises a shell 1, a display 5, keys 6 and a main circuit board 2, a secondary circuit board 4 and a plurality of mounting posts 3 connected with the inner side of the shell 1, wherein the display 5 is used for displaying various information, the keys 6 are used for performing conventional control operation, the mounting posts 3 comprise an upper mounting post 3 fixed with the upper shell 1 and a lower mounting post 3 fixed with the lower shell 1, the main circuit board 2 is fixedly connected with the lower shell 1 through the lower mounting posts 3, the secondary circuit board 4 is electrically connected with the main circuit board 2, and the secondary circuit board 4 is connected with the mounting posts 3 through springs. Through the spring as intermediate structure for the sub-circuit board 4 is more flexible with the connection of the interior erection column 3 of casing 1, plays the effect of moving away to avoid possible earthquakes, improves the stability that detects, does benefit to the integration of accurate sensor and panel board.
The secondary circuit board 4 is connected with the corresponding mounting columns 3 one by one through 4 springs, one end of the secondary circuit board 4 is connected with the 2 upper mounting columns 3 through 2 springs, and the other end of the secondary circuit board 4 is connected with the 2 lower mounting columns 3 through 2 springs. The upper mounting columns 3 and the lower mounting columns 3 respectively occupy half of the number, so that the auxiliary circuit board 4 is in a dynamic balance state, and is not only subjected to one of spring tension or elastic force, the complexity of stress is improved, and a more stable effect is achieved. Namely, one side is subjected to the tensile force of the spring, the other side is subjected to the elastic force of the spring, and the stress on the two sides can be unbalanced slightly in the vibration process, so that the secondary circuit board 4 is slightly overturned, and the vibration amplitude of the central position of the secondary circuit board 4 is reduced.
The micro electromechanical accelerometer of the embodiment is arranged in the middle of the secondary circuit board 4, and a balancing weight is further arranged in the middle of the secondary circuit board 4. The counterweight plays a role in not increasing the weight, but ensuring that the center of gravity is near the middle of the secondary circuit board 4, so that the movement track is smoother when vibration occurs. The specific position of the balancing weight depends on the free space of the secondary circuit board 4.
The secondary circuit board 4 is connected with the primary circuit board 2 through wires, and the connection point of the wires and the secondary circuit board 4 is positioned in the middle of the secondary circuit board 4.
Among the springs connected to the sub-circuit board 4, the spring constant of the spring connected to the upper mounting post 3 is not equal to the spring constant of the spring connected to the lower mounting post 3. After the vibration, the secondary circuit board 4 can be fluctuated under the action of tensile force or elastic force, and the secondary circuit board 4 can slightly turn over during the vibration due to unequal elastic coefficients, so that the vibration amplitude of the middle part is reduced.
From the description of the above embodiments, those skilled in the art will understand that, for convenience and brevity of description, only the above-described division of the functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, that is, the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above.
The units described as separate parts may or may not be physically separate, and the parts shown as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a vehicle instrument panel based on micro-electromechanical accelerometer, includes casing and main circuit board, its characterized in that still includes vice circuit board and connects a plurality of erection columns of casing inboard, a plurality of erection columns include with last erection column and with the fixed lower erection column of casing down that go up the casing is fixed, main circuit board is through lower erection column fixed connection lower casing, be equipped with micro-electromechanical accelerometer and micro-electromechanical accelerometer's work circuit on the vice circuit board, vice circuit board is connected with main circuit board electricity, and vice circuit board passes through the spring and is connected with the erection column, vice circuit board passes through the erection column that even number spring one-to-one connects the correspondence, and goes up erection column and down erection column in the erection column and respectively account for half quantity, micro-electromechanical accelerometer sets up in the centre of vice circuit board, and the centre of vice circuit board still is equipped with the balancing weight, the spring quantity that vice circuit board is connected is four, the one end of vice circuit board is through 2 upper erection columns of spring coupling 2, the other end of vice circuit board passes through 2 lower erection columns of spring coupling.
2. The vehicle dashboard based on a micro-electromechanical accelerometer of claim 1, wherein the secondary circuit board is connected to the primary circuit board by a wire, and the connection point of the wire to the secondary circuit board is located in the middle of the secondary circuit board.
3. The vehicle instrument panel based on the micro-electromechanical accelerometer according to claims 1-2, wherein the spring coefficient of the spring connected with the upper mounting post is not equal to the spring coefficient of the spring connected with the lower mounting post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010596722.3A CN111674261B (en) | 2020-06-28 | 2020-06-28 | Automobile instrument panel based on micro-electromechanical accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010596722.3A CN111674261B (en) | 2020-06-28 | 2020-06-28 | Automobile instrument panel based on micro-electromechanical accelerometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111674261A CN111674261A (en) | 2020-09-18 |
| CN111674261B true CN111674261B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010596722.3A Active CN111674261B (en) | 2020-06-28 | 2020-06-28 | Automobile instrument panel based on micro-electromechanical accelerometer |
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Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7870788B2 (en) * | 2002-01-25 | 2011-01-18 | Kinemetrics, Inc. | Fabrication process and package design for use in a micro-machined seismometer or other device |
| DE102005008566A1 (en) * | 2005-02-23 | 2005-09-15 | Daimlerchrysler Ag | Display unit for a motor vehicle displays views from area surrounding the motor vehicle |
| CN101439699A (en) * | 2008-12-29 | 2009-05-27 | 梅旭臻 | Built-in safeguard protection device of automobile |
| CN201816462U (en) * | 2010-08-02 | 2011-05-04 | 韩百军 | Triangular motorcycle instrument |
| CN203492265U (en) * | 2013-10-09 | 2014-03-19 | 浙江海洋学院 | Anti-shock circuit board |
| FR3026499B1 (en) * | 2014-09-30 | 2017-04-14 | Delphi Tech Inc | HAND-WHEEL CONTROL SYSTEM |
| CN104931054A (en) * | 2015-07-06 | 2015-09-23 | 极翼机器人(上海)有限公司 | Inertia measurement shock absorber and unmanned aerial vehicle inertia measuring module |
| US10343521B2 (en) * | 2015-11-19 | 2019-07-09 | Behr-Hella Thermocontrol Gmbh | Indictor apparatus for a vehicle component |
| CN105365674A (en) * | 2015-12-04 | 2016-03-02 | 长城信息产业股份有限公司 | Multifunctional vehicle meter panel and realization method thereof |
| US20180269016A1 (en) * | 2017-03-14 | 2018-09-20 | Kelsey-Hayes Company | Vehicle switch |
| CN107289934A (en) * | 2017-08-03 | 2017-10-24 | 重庆市皓颖科技发展有限公司 | A kind of attitude transducer of low-cost and high-precision |
| CN107864589A (en) * | 2017-11-21 | 2018-03-30 | 武汉航空仪表有限责任公司 | A kind of multilayer circuit board mounting structure with antivibration effect |
| CN207487690U (en) * | 2017-11-30 | 2018-06-12 | 深圳市科卫泰实业发展有限公司 | A kind of unmanned aircraft inertia measuring module |
| CN109029431B (en) * | 2018-05-29 | 2020-10-16 | 杭州电子科技大学 | Triaxial multi-stage PCB vibration reduction structure for MEMS inertial measurement system |
| CN209676710U (en) * | 2019-01-22 | 2019-11-22 | 深圳佰嘉奕成科技有限公司 | A kind of smart phone board structure of circuit |
| CN209739135U (en) * | 2019-04-22 | 2019-12-06 | 上海工程技术大学 | BAJA off-road vehicle instrument steering wheel |
| CN210928376U (en) * | 2019-10-30 | 2020-07-03 | 安庆船用电器有限责任公司 | GTU unit circuit board of marine electrical control system |
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