WO2013181999A1 - 车用电子控制装置 - Google Patents

车用电子控制装置 Download PDF

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Publication number
WO2013181999A1
WO2013181999A1 PCT/CN2013/076261 CN2013076261W WO2013181999A1 WO 2013181999 A1 WO2013181999 A1 WO 2013181999A1 CN 2013076261 W CN2013076261 W CN 2013076261W WO 2013181999 A1 WO2013181999 A1 WO 2013181999A1
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WO
WIPO (PCT)
Prior art keywords
housing
circuit board
electronic control
control device
mounting hole
Prior art date
Application number
PCT/CN2013/076261
Other languages
English (en)
French (fr)
Inventor
张科
何睿
Original Assignee
奥托立夫开发公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 奥托立夫开发公司 filed Critical 奥托立夫开发公司
Publication of WO2013181999A1 publication Critical patent/WO2013181999A1/zh

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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
    • H05K5/0052—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 joining features of the housing parts
    • 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
    • H05K5/0073—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having specific features for mounting the housing on an external structure

Definitions

  • the invention relates to an electronic control device for a vehicle. Background technique
  • the conventional electronic control unit (ECU) for vehicle is mounted on the vehicle body, usually by sandwiching a circuit board (PCB) between its housing and the cover, and using a plurality of connectors such as small screws to mount the housing.
  • the cover and the circuit board are connected to each other, thereby fixing them to each other.
  • the mounting of the connector usually extends beyond the body of the ECU, which makes the overall ECU bulky and the housing must be strong enough to withstand vibration and good force transmission. Therefore, the overall assembly system is oversized and costly.
  • a control device for a vehicle personnel protection device is disclosed in the patent document CN 102046429.
  • the fixing of the circuit board is achieved while assembling the control device.
  • the control unit is fixed to the motor vehicle by means of corresponding connectors.
  • a bushing 105 is provided in the plastic cover 101, and the screw 104 passes through the hole of the bushing 105 through the circuit board 108, and then inserted into the plastic base 102.
  • the other bushing 106 is then screwed into the vehicle body 103 in the corresponding thread, thereby achieving a force-transmitting connection of the plastic cover 101, the circuit board 108, the plastic base 102, and the vehicle body 103.
  • the electrical connection of the circuit board 108 to the vehicle body 103 can be established by the bushing 106 and/or the screw 104, thereby establishing a ground connection for the control device.
  • the materials used for the cover and the base of the control device are PBT-GF30 and PA66GF30, both of which are thermoplastic materials. Due to the weak heat aging resistance and stress relaxation properties of thermoplastic materials, they cannot withstand high clamping forces, so metal bushings 105 and 106 must be used together. The use of these metal bushings increases the cost of the housing and cover. Summary of the invention
  • the invention provides an electronic control device for a vehicle, which overcomes the prior art Describe the defect.
  • the present invention provides a vehicle electrical control device including a cover body, a housing, and a circuit board interposed between the cover body and the housing, the cover body and the housing And the circuit board is connected to each other by a body bolt, thereby fixing the electronic control device for the vehicle to the vehicle body; and the cover body and the housing are members made of thermosetting plastic.
  • the cover body and the casing have corresponding joint faces at the periphery thereof, and the joint faces are respectively provided with first mounting holes provided on the cover body through which the body bolts pass and a second mounting hole provided on the housing.
  • the cover body and the housing are substantially rectangular, the number of the body bolts is at least two, and the first mounting hole and the second mounting hole are both placed at opposite corners of the rectangle. Both ends of the line.
  • the peripheral edge of the circuit board extends along a portion of the joint surface of the cover body and the casing, and does not exceed the positions of the first mounting hole and the second mounting hole, the body bolt only Passing through the first mounting hole on the cover and the second mounting hole on the housing.
  • the peripheral edge of the circuit board extends along the entire joint surface of the cover body and the casing, and the circuit board is also provided with a third mounting hole through which the body bolt passes.
  • the body bolt sequentially passes through the first mounting hole of the cover, the third mounting hole of the circuit board, and the second mounting hole of the housing to thereby drive the vehicle electronics
  • the device is fixed to the vehicle body.
  • a metal plating layer is disposed at a position where the cover body and the housing are in contact with the circuit board, and the circuit board is grounded through an ammonium metal plating layer.
  • the electronic control device for vehicle of the invention adopts thermosetting plastic in the cover body and the casing part, and enhances the overall aging resistance and stress relaxation type; the circuit board is directly sandwiched between the casing and the cover body; The body bolts fix the vehicle electronic control device on the vehicle body, and the fixed points of the circuit board share the fixing points of the vehicle body, so that the fixing is more direct and simple, and is firm and reliable.
  • DRAWINGS Figure 1 is a cross-sectional view showing a control device of a vehicle personnel protection device according to the prior art;
  • FIG. 2 is a cross-sectional view showing an electronic control device for a vehicle according to a preferred embodiment of the present invention
  • Figure 3 is a plan view showing an electronic control unit for a vehicle according to the above preferred embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing an electronic control device for a vehicle according to another preferred embodiment of the present invention.
  • the present invention contemplates the use of a single bolt to securely mount the electronic control unit to the vehicle without the use of other connectors.
  • the thermosetting plastic is used for the housing and the cover, and the metal bushing is eliminated.
  • the housing and the cover are often fixedly connected by screws, and the biasing surface of the screw is reduced, so that the local clamping pressure is large.
  • the present invention directly uses the body bolt to fix the casing and the cover body, so that the clamping force distribution is more uniform, because the force applying surface of the body bolt is much larger than that of the small screw.
  • the advantage of directly securing the board with body bolts is that the fixed points of the board share the body fixing points, which makes the fixing more straightforward and reliable.
  • Fig. 2 is a cross-sectional view showing an electronic control unit for a vehicle according to a preferred embodiment of the present invention.
  • the electronic control unit 200 includes a cover 201, a housing 202, and a circuit board 203 sandwiched between the cover 201 and the housing 202.
  • the cover 201 is disposed adjacent to the vehicle body, and the housing 202 is disposed on the cover 201 to form a relatively sealed space for securing the circuit board 203 therein.
  • the cover 201, the housing 202, and the circuit board 203 are connected to each other by the body bolt.
  • the peripheral edge of the circuit board 203 extends along a portion of the joint surface of the cover 201 and the housing 202, and does not exceed the body bolt 204a of the cover 201 and the housing 202, Position of 204b, therefore, body bolts 204a, 2 04b Only the cover 201 and the housing 2 0 2 are passed through.
  • the cover body 201 and the housing 202 are respectively provided at their joint faces with a first mounting hole and a second mounting hole through which the body bolt passes.
  • the housing 202 and the cover 201 are fixed together by the body bolts 204a, 204b.
  • the body bolts 204a, 204b do not pass through the circuit board 203, as the body bolts 204a, 204b fasten the cover 2 Q1 and the housing 202 to each other, the circuit board 203 is also clamped to the cover 201 and the case. Between the bodies 202. Thereby, the vehicle electronic control unit 200 is integrally fixed to the vehicle body.
  • the body bolt since the body bolt does not pass through the circuit board, the size of the circuit board is effectively reduced, and at the same time, the circuit board is securely sandwiched between the cover and the housing. .
  • cover 201 and the casing 202 of the present invention are made of a thermosetting plastic.
  • Thermoset plastics can withstand very high clamping forces because of their high compressive strength and good resistance to stress relaxation. view.
  • the cover body and the housing are substantially rectangular in plan view, whereby the electronic control unit 200 for reading is generally rectangular.
  • the body bolts 204a and 204b are placed at opposite ends of the diagonal of the rectangle, which makes the fixing of the body bolt to the electronic control unit more stable.
  • FIG. 4 shows a cross-sectional view of an electronic control device for a vehicle in accordance with another preferred embodiment of the present invention.
  • the embodiment shown in FIG. 4 differs only in that: the circuit board 203 is provided with a third mounting hole through which the body bolt passes, and the periphery of the circuit board 203 is along the cover 201 and the case. all of the extension bonding surface 202, whereby the bolt body 204a and 2 04b passes through the first cap mounting hole 201, the third mounting holes in the circuit board 203, the second mounting hole 202 of the housing body, thereby The vehicle electronic device is fixed to the vehicle body 205.
  • the electronic control device for a vehicle of the present invention directly fixes the casing and the cover body by using the body bolt, and the cover body and the casing are made of a relatively pressure-resistant thermosetting plastic, thereby being able to take
  • the metal bushing described in the patent document CN102046429A is eliminated, so that the overall system structure is simpler and the cost is lower.
  • the metal bushing as described in the patent document CN102046429A is eliminated and the circuit board 2 C 3 is sandwiched between the cover body 201 and the housing 202, the circuit board can be secured by rational design of the circuit board 203. 203 is not grounded and is not subject to electromagnetic interference.
  • a metal plating layer may be applied where the cover body 201 and the housing 202 are in contact with the circuit board 203, and the grounding of the circuit board 203 is achieved by the metal plating layer.
  • the electronic control device for vehicle of the invention adopts thermosetting plastic in the cover body and the casing part, which enhances the overall aging resistance and stress relaxation type; the circuit board is directly sandwiched between the casing and the cover body, and the reduction is reduced. The size of the device and the cost are reduced; and the electronic control device for the vehicle is directly fixed to the vehicle body by the body bolt, and the structure is simple.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

一种车用电子控制装置（200），包括盖体（201）、壳体（202）以及夹置于盖体（201）和壳体（202）之间的电路板（203），通过车身螺栓（204a、204b）使所述盖体（201）、壳体（202）和所述电路板（203）相互连接，进而将所述车用电子控制装置（200）固定在车身上；并且所述盖体（201）和壳体（202）由热固性塑料制成。该车用电子控制装置（200）在盖体（201）和壳体（202）部分采用热固性塑料，增强了整体的抗老化性和抗应力松弛性；直接用车身螺栓（204a、204b）将车用电子控制装置（200）固定在车身上，结构简单。

Description

车用电子控制装置
技术领域
本发明涉及一种车用电子控制装置。 背景技术
传统的车用电子控制装置 （ECU )在车辆车身上的安装， 通常是 将电路板（PCB ) 夹置在其壳体和盖体之间， 并采用多个诸如小螺钉 的连接件将壳体、 盖体、 电路板相互连接， 由此将它们相互固定住。 连接件的安装通常要延伸出 ECU的本体， 这就使得 ECU整体体积过 大， 而且壳体必须足够坚固才能抵抗振动并进行良好传力。 因此， 整 体装配系统尺寸过大且成本较高。
举例而言，在专利文献 CN 102046429中公开了一种用于车辆人员 保护装置的控制装置。 在该专利文献中， 在对控制装置进行装配的同 时实现了对电路板的固定。 同时采用相应的连接件将控制装置固定在 机动车辆上。 具体而言， 如图 1所示， 在控制装置 100中， 在塑料盖 体 101中设置衬套 105， 螺钉 104穿过衬套 105在穿过电路板 108上 的孔， 随后插入塑料底座 102中的另一个衬套 106, 接着在相应的螺 紋中拧入到车辆车身 103中， 由此实现了塑料盖体 101、 电路板 108、 塑料底座 102、 车辆车身 103的传力连接。 由此， 通过衬套 106和 /或 螺钉 104可以建立电路板 108到车辆车身 103的电连接， 进而可以建 立控制装置的接地连接。
在上述专利中， 控制装置的盖体和底座所采用的材料为 PBT-GF30和 PA66GF30,这两种材料均为热塑性材料。 由于热塑性材 料抗热老化性能和应力松弛性能较弱， 因此无法承受很高的夹紧力， 因此就必须采用金属衬套 105、 106 配合使用。 而这些金属衬套的使 用， 造成壳体和盖体成本上升。 发明内容
本发明提供一种车用电子控制装置， 克服了现有技术中存在的上 述缺陷。
具体而言， 本发明提供一种车用电于控制装置， 包括盖体、 壳体 以及夹置于所述盖体和所述壳体之间的电路板， 所迷盖体、 所迷壳体 和所述电路板通过车身螺栓相互连接， 进而将所述车用电子控制装置 固定在车身上； 并且所述盖体和所述壳体是由热固性塑料制成的构 件。
优选地， 所迷盖体和所述壳体在其周边具有对应的接合面， 所迷 接合面上分别设有供所迷车身螺栓穿过的设置在所述盖体上的第一 安装孔和设置在所述壳体上的第二安装孔。
更优选地， 所迷盖体和所述壳体大致呈矩形， 所述车身螺栓的数 量为至少两个， 所述第一安装孔和所迷第二安装孔均置于所述矩形的 对角线的两端。
更优选地， 所述电路板的周缘沿所述盖体和所述壳体的接合面的 部分延展， 不超过所述笫一安装孔和所述第二安装孔的位置， 所述车 身螺栓只穿过所述盖体上的所迷第一安装孔和所述壳体上的所述第 二安装孔。
更优选地， 所迷电路板的周缘沿所述盖体和所述壳体的所迷接合 面的全部延展， 所述电路板上也设有供所述车身螺栓穿过的第三安装 孔， 所述车身螺栓依次穿过所述盖体的所述第一安装孔、 所述电路板 的所迷第三安装孔、 和所迷壳体的所述第二安装孔从而将所述车用电 子装置固定在所述车身上。
优选地， 在所述盖体和所述壳体与所述电路板接触之处设有一层 金属镀层， 所述电路板通过铵金属镀层接地。
本发明的车用电子控制装置在盖体和壳体部分采用热固性塑料， 增强了整体的抗老化性和抗应力松弛型； 将电路板直接夹置在壳体和 盖体之间； 而直接用车身螺栓将车用电子控制装置固定在车身上， 所 述电路板的固定点共用车身固定点， 这样固定更加直接简单， 并且牢 固可靠。 附图说明 图 1 示出根据现有技术的一种车辆人员保护装置的控制装置的截 面图；
图 2示出了根据本发明一优选实施例的车用电子控制装置的截面 图；
图 3 示出根据本发明的上述优选实施例的车用电子控制装置的俯 视图；
图 4示出了根据本发明另一优选实施例的车用电子控制装置的截 面图 具体实施方式
在下文中， 相同的附图标记指代相同的元件。
本发明考虑直接采用牟身螺栓将电子控制装置固定安装于车辆 上， 而不采用其他连接件。 同时， 对于壳体和盖体采用热固性塑料， 取消金属衬套。
如上文所迷， 在现有技术中， 经常采用小螺钉对壳体和盖体进行 固定连接， 而小螺钉施力面减小， 就使局部夹紧压力较大。 反之， 本 发明直接采用车身螺栓来固定壳体和盖体， 就使夹紧力分布更加均 匀， 因为车身螺栓的施力面比起小螺钉要大得多。 用车身螺栓直接固 定电路板好处在于所述电路板的固定点共用车身固定点， 这样固定 更加直接， 并且牢固可靠。
图 2示出了才艮据本发明一个优选实施例的车用电子控制装置的截 面图。 如图 2所示， 电子控制装置 200 包括盖体 201、 壳体 202、 以 及夹置于盖体 201和壳体 202之间的电路板 203。 本领域技术人员众 所周知的是，盖体 201 紧邻车身设置， 而壳体 202设置在盖体 201上， 从而形成一个相对密封的空间， 对其内的电路板 203进行固定保护。
根据本发明， 通过车身螺栓使盖体 201、 壳体 202和电路板 2 03 相互连接。 特别地， 在如图 2所示的实施例中， 电路板 203的周缘沿 盖体 201和壳体 202的接合面的部分延展， 而并不超过盖体 201和壳 体 202的车身螺栓 204a、 204b的位置， 因此， 车身螺栓 204a、 2 04b 只穿过盖体 201和壳体 202。 优选地， 如图 2所示， 盖体 201和壳体 202 在它们的接合面处分别设有供车身螺栓穿过的第一安装孔和第二 安装孔。 在这种情况下， 壳体 202和盖体 201被车身螺栓 204a、 204b 固定在一起。 另外， 尽管车身螺栓 204a、 204b并不穿过电路板 203 , 然而随着车身螺栓 204a、 204b将盖体 2 Q1和壳体 202相互紧固， 电 路板 203也被夹紧于盖体 201和壳体 202之间。 由此， 车用电子控制 装置 200被整体固定在车身上。 由此， 在上迷实施例中， 由于车身螺 栓并不穿过电路板， 这就有效地减小了电路板的尺寸， 同时又可以保 证电路板被牢固地夹在盖体和壳体之间。
另外， 本发明的盖体 201和壳体 202采用热固性塑料制成。 由于 热固性塑料的抗压强度非常高而且抗应力松弛性能较好， 因此能够承 受非常大的夹紧力。 视图。 如图 3可见， 从俯视图上看， 盖体和壳体大致成矩形， 由此使 读车用电子控制装置 200整体呈大致矩形。 优选地， 如图 3所示， 车 身螺栓 204a和 204b分置于上述矩形的对角线的两端， 这就使车身螺 栓对电子控制装置的固定更为平稳。
图 4示出根据本发明的另一优选实施例的车用电子控制装置的截 面图。 与图 2所示的实施例相比， 图 4所示的实施例的区别仅在于： 电路板 203设有供车身螺栓穿过的第三安装孔， 电路板 203的周缘沿 盖体 201和壳体 202的接合面的全部延展， 由此， 车身螺栓 204a和 204b依次穿过盖体 201的第一安装孔、 电路板 203的第三安装孔、 壳 体 202的第二安装孔， 从而将车用电子装置固定在车身 205上。
需要注意的是， 尽管上文所述实施例采用两个车身螺栓对电子控 制装置进行固定， 然而， 本领域技术人员可以理解的是， 也可以采用 其他数量的螺栓进行固定， 只要能够确保螺栓对电子控制装置的固定 牢固平稳， 因此可以考虑采用多于两个车身螺栓进行固定。
因此， 本发明的车用电子控制装置采用车身螺栓直接固定壳体和 盖体， 并且盖体和壳体由较为抗压的热固性塑料制成， 由此就可以取 消如专利文献 CN102046429A 中所述的金属衬套， 从而使整体系统的 结构更为简单，成本更低。而且，由于取消了如专利文献 CN102046429A 中所述的金属衬套并且电路板 2 C 3夹置在盖体 201和壳体 202之间， 因此通过对电路板 203的合理设计就可以保证该电路板 203不接地且 不受电磁干扰。
可选地， 如果需要将电路板 203接地， 则可以在盖体 201和壳体 202与电路板 203接触之处刷一层金属镀层， 通过该金属镀层实现电 路板 203的接地。
本发明的车用电子控制装置在盖体和壳体部分采用热固性塑料， 增强了整体的抗老化性和抗应力松弛型； 将电路板直接夹置在壳体和 盖体之间， 減小了装置的体积， 并降低了成本； 而直接用车身螺栓将 车用电子控制装置固定在车身上， 结构简单。
本领域技术人员还可以理解的是， 本发明的保护范围并不仅限于 上述实施例， 所有对本发明的等同变换均落在本发明的范围内。

Claims

权 利 要 求
1. 一种车用电子控制装置， 包括盖体、 壳体以及夹置于所述盖体 和所述壳体之间的电路板， 其特征在于：
所述盖体、 所述壳体和所述电路板通过车身螺栓相互连接， 进而 将所述车用电子控制装置固定在车身上； 并且所述盖体和所述壳体是 由热固性塑料制成的构件。
2. 根据权利要求 1所述的车用电子控制装置， 其特征在于， 所述 盖体和所述壳体在其周边具有对应的接合面， 所述接合面上分别设有 供所述车身螺栓穿过的设置在所迷盖体上的第一安装孔和设置在所 述壳体上的第二安装孔。
3. 根据权利要求 2所述的车用电子控制装置， 其特征在于， 所述 盖体和所述壳体大致呈矩形， 所述车身螺栓的数量为至少两个， 所述 第一安装孔和所迷第二安装孔均置于所述矩形的对角线的两端。
4. 根据权利要求 2所述的车用电子控制装置， 其特征在于， 所述 电路板的周缘沿所述盖体和所述壳体的所述接合面的部分延展， 不超 过所述第一安装孔和所述第二安装孔的位置， 所述车身螺栓只穿过所 述盖体上的所述第一安装孔和所述壳体上的所迷第二安装孔。
5. 根据权利要求 2所述的车用电子控制装置， 其特征在于， 所述 电路板的周缘沿所述盖体和所述壳体的所述接合面的全部延展， 所述 电路板上也设有供所述车身螺栓穿过的第三安装孔， 所述车身螺栓依 次穿过所迷盖体的所述第一安装孔、 所述电路板的所述第三安装孔、 和所迷壳体的所述第二安装孔从而将所述车用电子装置固定在所迷 车身上。
6. 根据权利要求 1至 5中任一项所述的车用电子控制装置，其特 征在于， 在所述盖体和所述壳体与所述电路板接触之处设有一层金属 镀层， 所述电路板通过读金属镀层接地。
PCT/CN2013/076261 2012-06-07 2013-05-27 车用电子控制装置 WO2013181999A1 (zh)

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CN207235251U (zh) * 2017-07-06 2018-04-13 大陆汽车电子(长春)有限公司 用于安装到车辆上的电子控制装置
JP6835792B2 (ja) * 2018-10-29 2021-02-24 矢崎総業株式会社 電気接続箱のアース接続構造および電気接続箱

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JP2003260992A (ja) * 2002-03-06 2003-09-16 Denso Corp 電気回路保護装置
CN1856229A (zh) * 2005-04-19 2006-11-01 株式会社电装 电子电路设备
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