CN113895225B - 用于车辆的仪表装置 - Google Patents
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Abstract
本发明的目的是提供一种用于车辆的仪表装置,其能够降低成本并且还可以实现重量减轻。用于车辆的仪表装置(1)包括主板(31),该主板(31)具有安装到其上的电子部件,该电子部件独立于表盘(5)的设计;以及副板(32),该副板具有安装在与表盘(5)的设计相对应的位置处的电子部件,其中,主板(31)与副板(32)彼此直接结合且电连接。
Description
技术领域
本发明涉及一种安装到车辆的仪表装置。
背景技术
用于车辆的仪表装置具有各种指示器仪表,诸如容纳在仪表壳体中的速度计,其中,电路板安装到仪表壳体的背面侧,电路板被配置为接收各种测量信号作为输入。在电路板上,例如,安装有诸如微计算机这样的控制电路、诸如步进电机这样的用于指示器仪表的内部驱动装置以及发光元件,控制电路被配置为控制整个仪表,并且发光元件被配置为照亮表盘的被照明区。
这里,如上所述,发光元件和/或内部驱动装置等可以依据表盘的设计而安装在各种位置。特别地,发光元件被定位在表盘的宽范围内,为了覆盖定位发光元件的范围,导致板尺寸增加。此外,由于电路板以适配于表盘的形状形成,所以通用性低,并且难以标准化。
为了解决这种问题,专利文献1描述了将光源直接安装在表盘的背面侧上。该文献进一步描述可以使得仪表装置的构造更薄且重量减轻,并且还能够降低部件成本。
引用列表
专利文献
专利文献1:JP2017-116358A
发明内容
根据专利文献1,光源直接安装在表盘的背面侧上,使得光源和表盘表面彼此太靠近,以至于不能以适当的方式发射和/或漫射光。这意味着存在如下问题:太接近的光源导致太强的光,并且因此导致表盘的不必要的强照明。专利文献1提供了使得光漫射的照射空间层。然而,当表盘具有过大的厚度以使得照射空间层能有效地作用时,表盘的重量增加,从而不能实现重量减轻。
此外,根据专利文献1的发明利用了供主板与表盘之间的连接使用的连接器。结果,将电路分成两个部件,即主板和表盘,导致部件的数量增加了连接器的数量,这实际上导致了成本的升高。
因此,鉴于上述问题,本发明的目的是提供一种用于车辆的仪表装置,其能够降低成本并且还能够实现重量的减轻。
为了实现上述目的,本发明提供了一种用于车辆的仪表装置,该仪表装置包括:主板,所述主板具有安装在其上的电子部件,所述电子部件独立于表盘的设计;以及副电路体,所述副电路体具有定位在与所述表盘的设计相对应的位置的电子部件,其中,所述主板与所述子电路体彼此直接结合且电连接。
根据如上所述的本发明,电路被划分为主板和副电路体,主板包括与表盘的设计无关的电子部件,并且副电路体包括被定位在与表盘的设计相对应的位置的电子部件。对于主板,这可以使其能够与设计独立地标准化,这可以允许降低成本。此外,主板和副电路体彼此直接结合,使得在这些部件之间的连接不需要连接器,这可以允许在减少重量的同时降低成本。
参考标记列表
1 用于车辆的仪表装置
4 仪表壳体
5 表盘
31 主板
32 副板(副电路体)
320 步进电机(内部驱动装置)
321 LED(发光元件)
附图说明
图1是根据本发明的实施例的用于车辆的仪表装置的分解立体图;
图2是根据图1的板的主视图;以及
图3是根据图2的主板与副板之间的连接部的截面图。
具体实施方式
在下文中,将参照附图描述本发明的实施例。图1示出了根据本发明的实施例的用于车辆的仪表装置的分解立体图。如图1所示,仪表装置1包括背壳体2、板3、仪表壳体4和表盘5。
背壳体2具有例如形成在其中的凹部,其能够容纳例如要安装到板3的电子部件,其中,背壳体2由单块模制部形成,该单块模制部具有由树脂制成的大致矩形的外部形状。背壳体2具有例如用于将板3旋拧到背壳体2的凸台。
板3具有例如用于与背壳体2的凸台接合的定位孔。板3包括主板31和副板32,其中,主板31由多层刚性板形成,并且副板32由柔性板形成。下面将详细描述板3。
仪表壳体4由单块模制部形成,该单块模制部具有由树脂制成的大致矩形的外部形状。仪表壳体4具有例如用于将背壳体2安装到其上的安装部和/或用于将表盘5安装到其上的安装部。仪表壳体4具有电机容纳室41、42和LED容纳室43,其中,电机容纳室41、42是用于将步进电机容纳于其中的空间,并且LED容纳室43是用于容纳用作照亮表盘5的发光元件的LED的空间,步进电机形成用于指示器仪表的内部驱动装置。
电机容纳室41被设置为用于容纳例如用于转速计的步进电机。电机容纳室42被设置为用于容纳例如用于速度计的步进电机。多个LED容纳室43形成在仪表壳体4中。多个LED容纳室43形成为对应于待被照明的表盘5上的位置。
表盘5由基本上矩形的板体形成,其中,表盘5具有各种设计,诸如刻度、图案、符号、字母和/或装饰,这些设计对应于关于安装有仪表装置1的车辆的信息。表盘5具有例如以公知的方式(例如通过印刷)形成的速度计表盘设计和/或转速计表盘设计。
接下来,将参照图2详细描述板3。如上所述,板3包括主板31和副板32。主板31由具有大致矩形形状的多层刚性板形成。在主板31上,例如安装有微计算机、稳压器和电子部件,其中,微计算机控制整个仪表装置1,并且稳压器向板供应电力,电子部件独立于仪表装置1的类型而被标准化,例如是用于连接到仪表装置1的外部的外部连接器。此外,液晶显示器可以安装到主板31。在这种情况下,GDC(图形显示控制器)一起安装到主板31。因此,主板31具有安装到其上的电子部件,这些电子部件独立于表盘5的设计。
此外,关于主板31,能够通过依据要安装的微计算机具有多少电连接来选择主板31的任意适当层数,针对微计算机的不同性能来标准化主板31。例如,八层主板31用于高性能微计算机,而四层主板31用于低性能微计算机。类似地,在配备有液晶显示器的主板31的情况下,可以允许主板31标准化。例如,在配备有七英寸液晶显示器的主板31的情况下,主板31能够被标准化以用于具有用于仪表的设计的任何车辆类型,该仪表使用用于表盘的七英寸液晶显示器。
在副板32上,例如安装如上所述的步进电机和LED。根据图2,副板32由第一副板32a和第二副板32b形成。在第一副板32a上,安装用于指示器仪表的内部驱动装置和与待照明的设计相对应的LED,其中,当从其正面观察仪表装置1时,指示器仪表和设计布置在仪表装置1的右侧。在第二副板32b上,安装用于指示器仪表的内部驱动装置和与待照明的设计相对应的LED,其中,当从其正面观察仪表装置1时,指示器仪表和设计布置在仪表装置1的左侧。这意味着副板32仅具有例如电子部件和与电子部件相关的部件,其中,电子部件根据表盘5的设计来布置。即,在副板32上,电子部件安装在与表盘5的设计相对应的位置。
如上所述,副板32配备有LED(由图2中的参考符号321表示)和步进电机(由图2中的参考符号320表示)以及它们的外围电路等。LED 321应安装在与待照明的设计相对应的位置。因此,副板32具有至少包括LED 321的安装位置的形状,如图2所示。
此外,主板31和副板32在没有诸如连接器这样的连接部件的情况下彼此直接结合。在图3中示出主板31与副板32之间的连结部。主板31在其边缘处具有突起311。至少围绕该突起311形成导体的图案,以用于电连接到副板32,如下所述。该图案连接到布设在主板31上的电路布线。
副板32在其端部处具有孔322。同样围绕该孔322形成导体图案。该图案连接到布设在副板32上的电路布线。然后,突起311被引入到孔322中并与孔322接合,并且执行焊接以固定它们。以这种方式,主板31与副板32彼此直接结合并电连接。此外,代替通过突起311和/或孔322将主板31与副板32配合,可以使用诸如ACF(各向异性导电膜)工艺这样的其他方法来直接结合板。
此外,尽管图1至图3示出了其中副电路体由柔性板形成的示例,但是电路体可以通过将例如步进电机和/或LED直接安装在仪表壳体4中来形成。这意味着副电路体可以不使用板。在这种情况下,步进电机、LED和/或诸如接线这样的用于形成电路体的其它元件可以嵌入在仪表壳体4中,或者暴露以例如布设电缆。在这种情况下,副电路体与主板可以通过将导体部分(例如,布线电缆的导体部分)直接焊接到例如主板31上的焊盘等来连接。这使得能够减小壳体的厚度,从而减少用于仪表壳体4的树脂的量。
根据本实施例,用于车辆的仪表装置1包括:主板31,电子部件安装到主板31,电子部件独立于表盘5的设计;以及副板32,电子部件安装在与表盘5的设计相对应的位置中,其中,主板31与副板32彼此直接结合并电连接。
仪表装置1的上述构造可使得主板31能够独立于设计而被标准化,这可使得降低成本。此外,主板31和副板32彼此直接结合,使得在这些部件之间不需要连接器,这可使得降低成本,与此同时减轻重量。此外,与常规仪表板相比,主板31被小型化,使得能够在生产期间生产更多数量的板,这能够实现低成本的板。另外,对于安装装置部件(SMT工艺),小型化可以提高可以提供给该工艺的量,从而与传统的车辆仪表装置相比可以降低加工成本。
此外,副板32包括LED 321和步进电机320,使得副板32可适配于与不同类型的仪表相对应的表盘5的不同设计。此外,LED 321被安装到副板32,使得LED 321和表盘5彼此间隔开适当的距离,这使得适当的发光和/或漫射成为可能。
此外,副板32由柔性板形成,使得与刚性板相比,副板32的重量能够减轻。同时,这使得副板32能够以一定程度弯曲,由此能够实现更大程度的布置自由度。此外,具有柔性板的构造消除了对布置在板的背侧上的屏蔽件的需要,这可允许降低成本。
此外,对于副电路体的形成,电子部件可以直接安装在仪表壳体4中。在这种情况下,不需要使用板。此外,能够减小壳体的厚度,从而减少用于仪表壳体4的树脂的量。
此外,主板31具有安装到其上的微计算机,该微计算机被配置成控制整个仪表装置1,使得可以对用于不同类型的微计算机的主板进行标准化和/或分组。以这种方式,可以降低成本。此外,由于主板可以共享于各种车辆(或通过仅适配于一个以上的差异而不改变基本配置来应用于各种车辆),因此可以减少软件开发的开发成本。
要注意的是,副板32不限于柔性板,而是可以用低成本板形成,诸如纸酚醛板,这是因为副板32不配备有诸如微计算机这样的高性能部件。
本发明不限于上述实施例。这意味着本领域技术人员可以在不脱离本发明的核心的范围内的常规知识来实现各种修改。应当理解,只要它们包括根据本发明的仪表装置的特征,这样的修改也落入本发明的范围内。
Claims (5)
1.一种用于车辆的仪表装置,包括:
主板,该主板具有安装到该主板的电子部件,所述电子部件独立于表盘的设计;以及
副电路体,该副电路体具有安装在与所述表盘的所述设计相对应的位置处的电子部件,
在所述主板形成有突起,并且在所述突起的周围形成有导体图案,所述导体图案用于电连接到所述副电路体,
在所述副电路体形成有孔,并且在所述孔的周围形成有导体图案,
其中,所述主板与所述副电路体通过将所述突起引入到所述孔中并与所述孔接合从而彼此直接结合并且电连接。
2.根据权利要求1所述的仪表装置,
其中,所述副电路体包括用于照亮所述表盘的发光元件和用于指示器仪表的内部驱动装置。
3.根据权利要求2所述的仪表装置,
其中,所述副电路体由柔性板形成。
4.根据权利要求2所述的仪表装置,
其中,所述副电路体通过将电子部件直接安装到仪表壳体而形成,其中,所述仪表壳体设置在所述主板与所述表盘之间。
5.根据权利要求1或2所述的仪表装置,
其中,所述主板包括安装到所述主板的微计算机,其中,所述微计算机被配置为整体地控制所述仪表装置。
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EP1541972A1 (en) * | 2002-09-20 | 2005-06-15 | Yazaki Corporation | Dial module, manufacturing method thereof, led display element, display module, movement module, connector module, and meter using them |
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