CN2733831Y - shielding isolation device - Google Patents

Abstract

Translated fromChinese

本实用新型有关于一种屏蔽隔离装置，其主要在液晶显示屏幕与电路板间设置一屏蔽隔离装置，并在屏蔽隔离装置适当处开设有一开槽，该开槽主要是依据电路板上所设置的天线模块相对应于屏蔽隔离装置的表面位置处而进行设置，使得在具有天线模块所设置的电路板表面处与液晶显示屏幕之间，排除受到该屏蔽隔离装置的隔离及遮蔽。

The utility model relates to a shielding and isolating device, which is mainly provided with a shielding and isolating device between a liquid crystal display screen and a circuit board, and a slot is provided at an appropriate place of the shielding and isolating device, and the slot is mainly based on the setting on the circuit board. The antenna module is arranged corresponding to the surface position of the shielding isolation device, so that the isolation and shielding by the shielding isolation device are excluded between the surface of the circuit board on which the antenna module is arranged and the liquid crystal display screen.

Description

Translated fromChinese

屏蔽隔离装置shielding isolation device

技术领域technical field

本实用新型有关于一种屏蔽隔离装置，尤指一种应用于电子装置产品上，并设置于液晶显示屏幕与电路板之间，以达到隔离及避免液晶显示屏幕在运作中所产生的噪声，对电路板上所设置的电子元件产生干扰的屏蔽隔离装置。The utility model relates to a shielding and isolating device, in particular to an electronic device product, which is arranged between a liquid crystal display screen and a circuit board to achieve isolation and avoid noise generated by the liquid crystal display screen during operation. A shielding isolation device that interferes with electronic components installed on a circuit board.

背景技术Background technique

随着电子科技的不断发展，目前市面上出现各种可供个人随身携带及应用的电子产品，以便于提供个人资料的管理、行动电话通讯、双向传呼及无线网络上网等种种功能，尤其在这个极度注重效率及速度的工商社会中，由此类功能强大的可携式电子产品以实时处理日常生活的琐碎事务或工作中的公务事物，已逐渐为现代人所接受，而这类产品为了便于消费者的随身携带，并符合消费者在使用功能上的需求，在产品的外观上朝向着轻薄短小进行设计，在产品内容上则尽可能的提供多样化的功能使用及运用，以符合社会上大部分消费者的需求。是以，在相关产品的设计上，就必须提供更强大的运算能力及内存容量，甚至可提供不同型式的无线信号收发方式，因此在这类电子装置内部的电路板上往往会在有限的空间里建构有不同的天线模块以接收不同的无线通信信号，再者，其所配置的液晶显示屏幕为适应于目前使用者愈来愈注重高色阶及高彩度的需求，因此液晶显示屏幕的工作频率亦愈加地快速，致使其愈容易产生有大量的噪声，并对电路板上的电子元件产生极大的干扰，因此往往需要在液晶显示屏幕及电路板之间加设有一屏蔽隔离装置，以达到遮蔽液晶显示屏幕所产生的噪声对电路板上电子元件产生干扰的情形。With the continuous development of electronic technology, there are various electronic products that can be carried and used by individuals on the market, so as to provide various functions such as personal data management, mobile phone communication, two-way paging and wireless Internet access. In the industrial and commercial society that pays great attention to efficiency and speed, it has been gradually accepted by modern people to use such powerful portable electronic products to deal with trivial affairs in daily life or official affairs in work in real time. Consumers carry it with them and meet the needs of consumers in terms of functions. The appearance of the product is designed towards lightness and shortness, and the content of the product is as much as possible to provide a variety of functional uses and applications to meet the needs of the society. the needs of most consumers. Therefore, in the design of related products, it is necessary to provide more powerful computing power and memory capacity, and even provide different types of wireless signal transmission and reception methods. Therefore, the circuit boards inside such electronic devices often have limited space. There are different antenna modules in it to receive different wireless communication signals. Furthermore, the liquid crystal display screen is adapted to meet the needs of current users who pay more and more attention to high color levels and high saturation. Therefore, the operating frequency of the liquid crystal display screen It is also faster and faster, making it easier to generate a lot of noise and cause great interference to the electronic components on the circuit board. Therefore, it is often necessary to add a shielding isolation device between the LCD screen and the circuit board to achieve The situation where the noise generated by shading the LCD screen interferes with the electronic components on the circuit board.

请参阅图1至图3所示，为现有的电子装置内部所设置的遮蔽隔离装置与电路板及液晶显示屏幕的立体分解示意图、组合图及截面图。如图所示，现有的电子装置为使液晶显示屏幕20’在运作中所产生的噪声不致对电路板30’上的电子元件产生干扰的影响，因此特别会设置一由金属薄片所制成的屏蔽隔离装置10’定位于液晶显示屏幕20’背表面处，再将液晶显示屏幕20’组装于电路板30’上，且该屏蔽隔离装置10’与电路板30’上的接地点(未图标)呈一电性导通，使得屏蔽隔离装置10’可以在液晶显示屏幕20’及电路板30’之间构成一屏蔽的效果，以达到阻隔液晶显示屏幕20’运作中所产生的噪声向外界溢出并对电路板30’上的电子元件产生干扰。Please refer to FIG. 1 to FIG. 3 , which are three-dimensional exploded schematic diagrams, assembly diagrams and cross-sectional diagrams of the shielding isolation device, the circuit board and the liquid crystal display screen arranged inside the existing electronic device. As shown in the figure, in order to prevent the noise generated by the liquid crystal display screen 20' during operation from interfering with the electronic components on the circuit board 30', an existing electronic device is specially provided with a metal sheet The shielding and isolating device 10' is positioned at the back surface of the liquid crystal display screen 20', and then the liquid crystal display screen 20' is assembled on the circuit board 30', and the shielding and isolating device 10' is connected to the ground point on the circuit board 30' (not icon) is electrically connected, so that the shielding isolation device 10' can form a shielding effect between the liquid crystal display screen 20' and the circuit board 30', so as to block the noise generated during the operation of the liquid crystal display screen 20' to The outside spills and interferes with the electronic components on the circuit board 30'.

但由于现有的屏蔽隔离装置10’主要是以整个覆盖的方式设置于液晶显示屏幕20’的背部表面，当相对应于该屏蔽隔离装置10’位置的电路板30’表面上布设有天线模块34’时，往往会因为屏蔽隔离装置10’过于靠近天线模块34’，进而造成对无线通讯的严重干扰，此乃因为天线使用环境需要离开金属物体一段距离，以防止天线的发射/接收信号受到金属对象的影响而造成衰减，进而影响到天线的信号发射/接收的效率。However, since the existing shielding and isolating device 10' is mainly arranged on the back surface of the liquid crystal display screen 20' in an overall covering manner, when an antenna module is arranged on the surface of the circuit board 30' corresponding to the position of the shielding and isolating device 10' 34', often because the shielding isolation device 10' is too close to the antenna module 34', which will cause serious interference to wireless communication, this is because the environment of the antenna needs to be away from the metal object for a certain distance to prevent the transmission/reception signal of the antenna from being affected Attenuation caused by the influence of metal objects, which in turn affects the efficiency of signal transmission/reception of the antenna.

发明内容Contents of the invention

本实用新型的主要目的，在于提供一种屏蔽隔离装置，主要是用以大幅降低屏蔽隔离装置对于天线模块发射/接收信号的衰减影响。The main purpose of the present utility model is to provide a shielding isolation device, which is mainly used to greatly reduce the attenuation effect of the shielding isolation device on the transmission/reception signal of the antenna module.

本实用新型的另一目的，在于提供一种屏蔽隔离装置，使得当天线模块设置位置过于接近屏蔽隔离装置时，仍可用以提高天线模块在运作时的信号发射/接收的效率。Another object of the present invention is to provide a shielding isolation device, so that when the antenna module is located too close to the shielding isolation device, it can still be used to improve the efficiency of signal transmission/reception of the antenna module during operation.

为达成上述目的，本实用新型主要在液晶显示屏幕与电路板间所设置的屏蔽隔离装置适当处开设有一开槽，该开槽主要是依据电路板上所设置的天线模块相对应于屏蔽隔离装置的表面位置处而进行设置，使得在具有天线模块所设置的电路板表面处与液晶显示屏幕之间，排除受到该屏蔽隔离装置的隔离及遮蔽。In order to achieve the above purpose, the utility model mainly provides a slot at an appropriate place of the shielding isolation device arranged between the liquid crystal display screen and the circuit board. The position of the surface is arranged so that between the surface of the circuit board on which the antenna module is arranged and the liquid crystal display screen, isolation and shielding by the shielding and isolating device are excluded.

附图说明Description of drawings

图1为现有电子装置内部所设置的遮蔽隔离装置与电路板及液晶显示屏幕的立体分解图。FIG. 1 is a three-dimensional exploded view of a shielding isolation device, a circuit board and a liquid crystal display screen disposed inside a conventional electronic device.

图2为现有电子装置内部所设置的遮蔽隔离装置与电路板及液晶显示屏幕的组合图。FIG. 2 is a combination diagram of a shielding and isolating device, a circuit board and a liquid crystal display screen arranged inside an existing electronic device.

图3为现有电子装置内部所设置的遮蔽隔离装置与电路板及液晶显示屏幕的截面图。3 is a cross-sectional view of a shielding isolation device, a circuit board, and a liquid crystal display screen disposed inside an existing electronic device.

图4为本实用新型的屏蔽隔离装置与电路板及液晶显示屏幕组设时的立体分解图。Fig. 4 is a three-dimensional exploded view of the shielding isolation device of the present invention when it is assembled with a circuit board and a liquid crystal display screen.

图5为本实用新型的屏蔽隔离装置与电路板及液晶显示屏幕组设时的组合图。Fig. 5 is a combination diagram of the shielding and isolation device of the present invention when it is assembled with a circuit board and a liquid crystal display screen.

图6为本实用新型的屏蔽隔离装置与电路板及液晶显示屏幕组设时的截面图。Fig. 6 is a cross-sectional view of the shielding isolation device of the present invention when it is assembled with a circuit board and a liquid crystal display screen.

图7为天线模块分别应用在本实用新型与现有的屏蔽隔离装置时所量测的回波损耗(return loss)特性曲线图。FIG. 7 is a characteristic curve of return loss (return loss) measured when the antenna module is applied to the utility model and the existing shielding isolation device respectively.

符号说明Symbol Description

10’  屏蔽隔离装置      20’  液晶显示屏幕10’ Shield Isolation Device 20’ LCD Screen

30’  电路板            34’  天线模块30’ Circuit Board 34’ Antenna Module

10    屏蔽隔离装置      12    定位部10 Shielding isolation device 12 Positioning part

14    开槽              16    固定座14 Slotted 16 Fixed seat

162   穿孔              20    液晶显示屏幕162 perforated 20 LCD screen

30    电路板            32    金属遮蔽盖30 Circuit board 32 Metal shielding cover

34    天线模块          36    固定孔34 Antenna module 36 Fixing hole

具体实施方式Detailed ways

请参阅图4及图5所示，分别为本实用新型的屏蔽隔离装置与电路板及液晶显示屏幕组设时的立体分解示意图及组合图。如图所示，本实用新型的屏蔽隔离装置10主要适用于具有液晶显示屏幕的电子装置上，该电子装置除了分别各设置有一上、下壳体(未图标)，并在上、下壳体未图标出现一次即可间分别至少设置有一液晶显示屏幕20及一电路板30，屏蔽隔离装置10主要由一具有导电性的金属薄片所制成，该屏蔽隔离装置10周缘各垂直设置有多个定位部12，使得液晶显示屏幕20可定位于各定位部12所围绕的屏蔽隔离装置10表面，再组装于电路板30上，各本实施例中定位部12为由部分的金属薄片直接经由弯折加工而构成一呈垂直于屏蔽隔离装置10的凸壁态样，而该屏蔽隔离装置10主要是盖设于该液晶显示屏幕20的背部表面，并隔离设置于液晶显示屏幕20及电路板30之间，且该屏蔽隔离装置10组设于电路板30上后，需与电路板30的接地点(未图标)呈一电性导通，因此在本实用新型中该屏蔽隔离装置10可直接叠置于电路板30上所设的金属遮蔽盖32上，因金属遮蔽盖32主要设置于电路板上，用以遮蔽设置于电路板30上而会产生电磁波或噪声的高频电子元件或电路(未图标)，以避免前述高频电子元件或电路在操作过程中所产生的电磁波或噪声对于其它的电子元件或电路产生干扰，而金属遮蔽盖32一般皆与电路板30上的接地点呈一电性导通，以排除金属遮蔽盖32上所累积的电磁波及噪声，故可同时达到使屏蔽隔离装置10导通接地点的目的。Please refer to FIG. 4 and FIG. 5 , which are respectively a three-dimensional exploded schematic diagram and an assembly diagram of the shielding isolation device of the present invention when it is assembled with a circuit board and a liquid crystal display screen. As shown in the figure, the shielding andisolating device 10 of the present utility model is mainly applicable to an electronic device with a liquid crystal display screen. The electronic device is respectively provided with an upper and a lower housing (not shown), and the upper and lower housings At least one liquidcrystal display screen 20 and onecircuit board 30 can be installed at least once if no icon appears once. The shielding andisolating device 10 is mainly made of a conductive metal sheet. A plurality of Positioning parts 12, so that the liquidcrystal display screen 20 can be positioned on the surface of theshielding isolation device 10 surrounded by each positioning part 12, and then assembled on thecircuit board 30, each positioning part 12 in this embodiment is made of a part of the metal sheet directly through the bending It is folded and processed to form a convex wall that is perpendicular to the shielding and isolatingdevice 10, and the shielding andisolating device 10 is mainly covered on the back surface of the liquidcrystal display screen 20, and is isolated from the liquidcrystal display screen 20 and thecircuit board 30 between, and after theshielding isolation device 10 is set on thecircuit board 30, it needs to be electrically connected with the grounding point (not shown) of thecircuit board 30, so in the utility model, theshielding isolation device 10 can be directly Stacked on the metal shielding cover 32 provided on thecircuit board 30, because the metal shielding cover 32 is mainly arranged on the circuit board, it is used to shield the high-frequency electronic components or circuits that are arranged on thecircuit board 30 and may generate electromagnetic waves or noise (not shown), in order to avoid the electromagnetic waves or noise generated by the aforementioned high-frequency electronic components or circuits in the operation process from interfering with other electronic components or circuits, and the metal shielding cover 32 is generally in the same shape as the grounding point on thecircuit board 30 One is electrically connected to eliminate electromagnetic waves and noises accumulated on the metal shielding cover 32 , so that the purpose of making theshielding isolation device 10 conductive to the grounding point can be achieved at the same time.

另请同时参阅图6所示，本实用新型的屏蔽隔离装置10主要是在适当位置处开设有一开槽14的结构，其中该开槽14在屏蔽隔离装置10上所开设的位置主要依据电路板30上设有一天线模块34的相对位置处，使得当屏蔽隔离装置10组设于电路板30上后，在电路板30上所布局设置的天线模块34所相对应的屏蔽隔离装置10表面同时开设有适当面积大小的开槽14，使天线模块34的接收/发射信号不至于受到屏蔽隔离装置10的遮盖或阻挡，其中该开槽14的形状及大小，主要依照天线模块34在电路板30上所布设的位置而设定，使得在具有天线模块34所设置的电路板30表面处与液晶显示屏幕10之间，得以排除该屏蔽隔离装置10的隔离者，其中在本实用新型的电路板30上所设置的天线模块34主要是以平板天线所构成，其主要由平板天线的信号接收/发射具有一定的方向性，即以垂直于电路板平面方向为主要的信号接收/发射方向，因此本实用新型对于此类型的天线模块信号发射/接收效率可产生较为显著性的改进；另外为使得屏蔽隔离装置10易于定位及组装至电路板30上，该屏蔽隔离装置10周缘另凸设有多个的固定座16，并在固定座16上穿设有一穿孔162，并在电路板30上相对位置处各开设有一固定孔36，使得当屏蔽隔离装置10欲组装于电路板30上时，可由卡榫或螺杆等锁固元件(未图标)，将屏蔽隔离装置10固设于电路板30上正确位置处，以便于加速生产时组装的速度。Please also refer to FIG. 6 at the same time. The shielding andisolating device 10 of the present invention mainly has a structure with a slot 14 at an appropriate position, wherein the position of the slot 14 on the shielding andisolating device 10 is mainly based on thecircuit board 30 is provided with the relative position of anantenna module 34, so that when theshielding isolation device 10 is set on thecircuit board 30, the surface of theshielding isolation device 10 corresponding to theantenna module 34 arranged on thecircuit board 30 is opened simultaneously. There is a slot 14 with an appropriate size, so that the receiving/transmitting signal of theantenna module 34 will not be covered or blocked by theshielding isolation device 10, wherein the shape and size of the slot 14 mainly depends on the placement of theantenna module 34 on thecircuit board 30 The layout position is set so that between the surface of thecircuit board 30 with theantenna module 34 and the liquidcrystal display screen 10, the isolator of theshielding isolation device 10 can be excluded, wherein thecircuit board 30 of the present utility model Theantenna module 34 provided above is mainly composed of a flat panel antenna, and the signal reception/transmission of the panel antenna mainly has a certain directionality, that is, the direction perpendicular to the plane of the circuit board is the main signal reception/transmission direction, so this The utility model can significantly improve the signal transmission/reception efficiency of this type of antenna module; in addition, in order to make the shielding andisolating device 10 easy to locate and assemble on thecircuit board 30, the periphery of the shielding andisolating device 10 is provided with a plurality of protrusions The fixed seat 16 is provided with a perforation 162 on the fixed seat 16, and a fixed hole 36 is provided at the opposite position on thecircuit board 30, so that when theshielding isolation device 10 is to be assembled on thecircuit board 30, it can be used by the card Locking elements (not shown) such as tenons or screws fix the shielding and isolatingdevice 10 at the correct position on thecircuit board 30, so as to speed up the speed of assembly during production.

请同时参阅图7所示，当天线模块分别应用在本实用新型与现有的屏蔽隔离装置时所量测的回波损耗(return loss)特性曲线图。如图所示，采用现有的屏蔽隔离装置10’所量测的曲线为before，而采本实用新型的屏蔽隔离装置10所量测的曲线为NOW，由回波损耗特性曲线图中可以很容易的比较出，当天线模块34操作于2.4～2.6GHZ的频带范围，运用本实用新型的屏蔽隔离装置10作为液晶显示屏幕20与电路板30间的噪声隔离作用时，天线模块34可以相对得到较低dB值，故可以相对提供较佳的操作特性。Please also refer to FIG. 7 , which shows the measured return loss characteristic curves when the antenna module is applied to the utility model and the existing shielding isolation device respectively. As shown in the figure, the curve measured by the existing shielding and isolating device 10' is before, while the curve measured by the shielding andisolating device 10 of the present utility model is NOW, and it can be clearly seen from the return loss characteristic curve It is easy to compare that when theantenna module 34 operates in the frequency band range of 2.4-2.6GHZ, and theshielding isolation device 10 of the present invention is used as the noise isolation between the liquidcrystal display screen 20 and thecircuit board 30, theantenna module 34 can be obtained relatively. Lower dB value, so it can provide relatively better operating characteristics.

由上述说明可知，本实用新型主要依照电路板30上所设置的天线模块34位置，于屏蔽隔离装置10表面的相对应位置处开设有适当形状大小的开槽14，以使得该天线模块34在运作时，避免受到该屏蔽隔离装置10的遮蔽及靠近的影响，而降低该天线模块34的信号发射/接收的效率，且同时仍可维持使液晶显示屏幕20所产生的噪声信号可以受到该屏蔽隔离装置10的适当遮蔽，使产生的噪声不致于干涉到电路板30上电子元件的运作，致使屏蔽隔离装置10在仍具有遮蔽液晶显示屏幕20所产生的噪声信号下，仍可达到提高天线模块34信号发射/接收效率的目的。As can be seen from the above description, the utility model is mainly based on the position of theantenna module 34 provided on thecircuit board 30, and a slot 14 of an appropriate shape and size is provided at a corresponding position on the surface of theshielding isolation device 10, so that theantenna module 34 During operation, avoid being affected by the shielding and approaching of theshielding isolation device 10, thereby reducing the signal transmission/reception efficiency of theantenna module 34, and at the same time still maintaining the noise signal generated by the liquidcrystal display screen 20 can be subjected to the shielding The proper shielding of theisolating device 10 prevents the generated noise from interfering with the operation of the electronic components on thecircuit board 30, so that the shielding andisolating device 10 can still improve the performance of the antenna module while still shielding the noise signal generated by the liquidcrystal display screen 20. 34 Signal transmission/reception efficiency purposes.

Claims (4)

1, a kind of shielding and isolating device, it is made by a conductive foil, the certain at least position portion of each vertical extent setting of this shielding and isolating device periphery, to provide a LCD Panel can be positioned the shielding and isolating device surface that is surrounded between this location division, again to be assembled on the circuit board, and be provided with an Anneta module on this circuit board in addition, and this shielding and isolating device is to be isolated between this LCD Panel and the circuit board, it is characterized in that: this shielding and isolating device offers a fluting, and this fluting is to correspond to the surface location place of this shielding and isolating device and offer according to set this Anneta module on this circuit board.

2, shielding and isolating device as claimed in claim 1 is characterized in that, this location division directly constitutes a protruding wall aspect that is perpendicular to shielding and isolating device by the sheet metal of part via bending process.

3, shielding and isolating device as claimed in claim 1, it is characterized in that, this shielding and isolating device periphery convexes with a plurality of holders, and on holder, be equipped with a perforation, the relative position place respectively offers a fixing hole on circuit board in addition, make when shielding and isolating device is assembled on the circuit board, can shielding and isolating device be fixedly arranged on proper position on the circuit board by a plurality of lock members.

4, shielding and isolating device as claimed in claim 1 is characterized in that, this Anneta module is a plate aerial.

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