TWI616738B

TWI616738B - Computer enclosure with anti-emi holes and electronic device with computer enclosure

Info

Publication number: TWI616738B
Application number: TW099120973A
Authority: TW
Inventors: 林有旭
Original assignee: 鴻海精密工業股份有限公司
Priority date: 2010-06-25
Filing date: 2010-06-25
Publication date: 2018-03-01
Also published as: TW201200991A

Abstract

一種具有防電磁輻射功能開孔之殼體，包括一位於第一平面上之板體，該板體上佈設有複數多邊形開孔，一第二平面垂直於該第一平面，一電磁輻射發射源位於該第二平面上，該多邊形開孔於板體上以不同角度旋轉佈設時，在垂直於該第二平面方向上各具有一最大孔徑，該多邊形開孔以一角度佈設，該多邊形開孔以該角度佈設時，其最大孔徑為以不同角度旋轉佈設時各最大孔徑中之最小者。本創作還揭示了一種裝設了該具有防電磁輻射功能開孔殼體之電子裝置。 A housing having an anti-electromagnetic radiation function opening, comprising a plate body on a first plane, wherein the plate body is provided with a plurality of polygonal openings, and a second plane is perpendicular to the first plane, an electromagnetic radiation emitting source Located on the second plane, when the polygonal opening is rotated at different angles on the plate body, each of the polygon openings has a maximum aperture perpendicular to the second planar direction, and the polygonal opening is disposed at an angle, the polygonal opening When laid at this angle, the maximum aperture is the smallest of the largest apertures when rotated at different angles. The present invention also discloses an electronic device equipped with the apertured housing having electromagnetic radiation prevention function.

Description

具有防電磁輻射功能開孔之殼體及具有該殼體之電子裝置 Housing with anti-electromagnetic radiation function opening and electronic device having the same

本發明涉及一種具有防電磁輻射功能開孔之殼體，尤指一種電子裝置上具有防電磁輻射功能開孔之殼體。 The invention relates to a housing with an anti-electromagnetic radiation function opening, in particular to a housing with an electromagnetic radiation-proof opening on an electronic device.

台式電腦機箱後板上通常設有複數開孔用以為電腦內之發熱設備散熱，習知之開孔形狀通常有圓孔與六邊形孔兩種。電腦機箱內之電子裝置在工作過程中向外發射特定波長之電磁波從而產生電磁輻射現象，該等電磁波較易從後板之開孔中洩露出來，對人體產生輻射，使用者若長期處於電磁輻射之環境中會對身體健康產生不良影響。 The back panel of the desktop computer case usually has a plurality of openings for dissipating heat for the heat generating device in the computer. The conventional opening shape usually has two kinds of round holes and hexagonal holes. The electronic device in the computer case emits electromagnetic waves of a specific wavelength outward during the working process to generate electromagnetic radiation, and the electromagnetic waves are easily leaked from the opening of the rear plate to generate radiation to the human body, and the user is in electromagnetic radiation for a long time. The environment can have adverse effects on health.

鑒於以上內容，有必要提供一種具有防電磁輻射功能開孔之殼體及具有該殼體之電子裝置，能有效抑制電子裝置內之電磁輻射。 In view of the above, it is necessary to provide a housing having an aperture for preventing electromagnetic radiation and an electronic device having the same, which can effectively suppress electromagnetic radiation in the electronic device.

一種具有防電磁輻射功能開孔之殼體，包括一位於第一平面上之板體，該板體上佈設有複數多邊形開孔，一第二平面垂直於該第一平面，一電磁輻射發射源位於該第二平面上，該多邊形開孔於板體上以不同角度旋轉佈設時，在垂直於該第二平面方向上各具有一最大孔徑，該多邊形開孔以一角度佈設，該多邊形開孔以該角度佈設時，其最大孔徑為以不同角度旋轉佈設時各最大孔徑中之最小者。 A housing having an anti-electromagnetic radiation function opening, comprising a plate body on a first plane, wherein the plate body is provided with a plurality of polygonal openings, and a second plane is perpendicular to the first plane, an electromagnetic radiation emitting source Located on the second plane, when the polygonal opening is rotated at different angles on the plate body, each of the polygon openings has a maximum aperture perpendicular to the second planar direction, and the polygonal opening is disposed at an angle, the polygonal opening With this When the angle is laid, the maximum aperture is the smallest of the maximum apertures when the rotation is performed at different angles.

一種電子裝置，包括一後板、及一垂直於該後板之側板，該側板上裝設一電路板，該後板上佈設有複數多邊形開孔，該多邊形開孔於板體上以不同角度旋轉佈設時，於垂直于該電路板所在平面方向上各具有一最大孔徑，該多邊形開孔以一角度佈設，該多邊形開孔以該角度佈設時，其最大孔徑為以不同角度旋轉佈設時各最大孔徑中之較小者。 An electronic device includes a rear plate and a side plate perpendicular to the rear plate. The side plate is provided with a circuit board. The rear plate is provided with a plurality of polygonal openings, and the polygonal holes are opened at different angles on the plate body. When the rotation is arranged, each has a maximum aperture in a direction perpendicular to a plane of the circuit board, and the polygonal opening is arranged at an angle. When the polygonal opening is arranged at the angle, the maximum aperture is rotated at different angles. The smaller of the largest apertures.

與習知技術相比，該電子裝置後板上之多邊形開孔之最大孔徑為以不同角度旋轉佈設時各最大孔徑中之較小者，可有效抑制電子裝置內之電磁輻射。 Compared with the prior art, the maximum aperture of the polygonal opening on the rear panel of the electronic device is the smaller of the maximum apertures when the antenna is rotated at different angles, and the electromagnetic radiation in the electronic device can be effectively suppressed.

10‧‧‧電子裝置 10‧‧‧Electronic devices

11‧‧‧後板 11‧‧‧ Back panel

12‧‧‧側板 12‧‧‧ side panels

20‧‧‧電路板 20‧‧‧ boards

21‧‧‧散熱設備 21‧‧‧heating equipment

111‧‧‧通風區 111‧‧‧Ventilated area

112‧‧‧開孔 112‧‧‧Opening

a‧‧‧最長對角線 A‧‧‧ longest diagonal

b‧‧‧最大孔徑 b‧‧‧Maximum aperture

圖1係本創作具有防電磁輻射功能開孔之殼體裝設於一電子裝置上之示意圖。 FIG. 1 is a schematic view showing a housing having an anti-electromagnetic radiation function opening installed on an electronic device.

圖2係圖1中開孔內最長之對角線之延伸方向與該電路板所在之平面平行時之示意圖。 Figure 2 is a schematic view showing the direction in which the longest diagonal of the opening in Figure 1 extends parallel to the plane in which the board is located.

圖3係圖1中開孔內最長之對角線之延伸方向與該電路板所在之平面呈15度角時之示意圖。 Figure 3 is a schematic illustration of the direction in which the longest diagonal of the opening in Figure 1 extends at an angle of 15 degrees to the plane in which the board is located.

圖4係圖1中開孔內最長之對角線之延伸方向與該電路板所在之平面呈30度角時之示意圖。 4 is a schematic view showing the direction in which the longest diagonal line in the opening of FIG. 1 extends at an angle of 30 degrees to the plane in which the board is located.

圖5係圖1中開孔內最長之對角線之延伸方向與該電路板所在之平面呈45度角時之示意圖。 Figure 5 is a schematic illustration of the direction in which the longest diagonal of the opening in Figure 1 extends at a 45 degree angle to the plane in which the board is located.

圖6係圖1中開孔內最長之對角線之延伸方向與該電路板所在之平面呈60度角時之示意圖。 Figure 6 is a schematic view showing the direction in which the longest diagonal line in the opening of Figure 1 extends at an angle of 60 degrees to the plane in which the board is located.

圖7係圖1中開孔內最長之對角線之延伸方向與該電路板所在之平面呈90度角時之示意圖。 Figure 7 is a schematic illustration of the direction in which the longest diagonal of the opening in Figure 1 extends at an angle of 90 degrees to the plane in which the board is located.

請參閱圖1，本發明裝設了具有防電磁輻射功能開孔殼體之電子裝置10一較佳實施方式包括一後板11及一垂直於該後板11之側板12。該後板11上佈設有複數具有防電磁輻射功能之開孔112。該側板12上裝設一電路板20，該電路板20上裝設一電子元件之散熱設備21。該後板11上相應於該散熱設備21之位置處設有一便於該散熱設備21與外界熱量流通之通風區111。該開孔112開設於通風區111上。請參閱圖2，其為圖1中通風區111之局部放大圖。將圖1中豎直向下之方向定義為Y方向，將該電路板20所在之平面內垂直於Y方向定義為X方向，將該後板11所在之平面內垂直於Y方向定義為Z方向。其中Y方向與Z方向所確定之平面為第一平面，該後板11位於該第一平面上。X方向與Y方向所確定之平面為第二平面，該電路板20位於該第二平面上。在本發明較佳實施方式中該多邊形開孔112呈正六邊形。每一正六邊形開孔分別具有一條最長之對角線a。該對角線a之延伸方向與該電路板20所在之平面平行。每一正六邊形開孔112於Z方向上分別具有一條最大孔徑b,當該對角線a之延伸方向與該電路板20所在之平面平行時該正六邊形開孔112於Z方向上之最大孔徑b為該多邊形開孔112於後板11上旋轉佈設時之最小者。 Referring to FIG. 1, an electronic device 10 having an apertured housing with electromagnetic radiation protection is provided. A preferred embodiment includes a rear panel 11 and a side panel 12 perpendicular to the rear panel 11. The rear plate 11 is provided with a plurality of openings 112 having electromagnetic radiation prevention functions. A circuit board 20 is mounted on the side panel 12, and an electronic component heat dissipating device 21 is mounted on the circuit board 20. A venting zone 111 is provided on the rear panel 11 corresponding to the heat dissipating device 21 to facilitate heat communication between the heat dissipating device 21 and the outside. The opening 112 is formed in the ventilation area 111. Please refer to FIG. 2 , which is a partial enlarged view of the ventilation zone 111 of FIG. 1 . The direction vertically downward in FIG. 1 is defined as the Y direction, and the plane in which the circuit board 20 is located is defined as the X direction perpendicular to the Y direction, and the plane in which the rear plate 11 is located is defined as the Z direction perpendicular to the Y direction. . The plane defined by the Y direction and the Z direction is a first plane, and the rear panel 11 is located on the first plane. The plane defined by the X direction and the Y direction is a second plane, and the circuit board 20 is located on the second plane. In the preferred embodiment of the invention, the polygonal opening 112 has a regular hexagon. Each regular hexagonal opening has a longest diagonal a. The direction of extension of the diagonal a is parallel to the plane in which the circuit board 20 is located. Each of the regular hexagonal openings 112 has a maximum aperture b in the Z direction, and the regular hexagonal opening 112 is in the Z direction when the direction of extension of the diagonal a is parallel to the plane in which the circuit board 20 is located. The maximum aperture b is the smallest when the polygonal opening 112 is rotated on the rear plate 11.

請參閱圖3至圖7，分別為該對角線a之延伸方向與該電路板20所在之平面呈15度、30度、45度、60度與90度角時之示意圖，每一正六邊形開孔112於Z方向上分別具有一條最大孔徑b。使用一電磁相容性分析軟體FLOEMC 6.1對該對角線a之延伸方向與該電路板20所在之平面呈上述各角度時之電場情況進行仿真分析，仿真之初始條件為：電子裝置10內在空間上之網格劃分精度為0.8mm×0.8mm×0.8mm(長×寬×高)，仿真時間為200nm，仿真頻率為1.5GHZ，輻射源模型為3D天線輻射源，在該初始條件下距離輻射源3m處之柱狀場電場峰值如下表所示：由上述仿真結果可知，當該對角線a之延伸方向與該電路板20所在之平面呈0度或60度角，即該對角線a之延伸方向與該電路板20所在之平面平行時，距離輻射源3m處之電子裝置10外之柱狀場電場峰值最小，即所產生之輻射亦最小，因而此結構之開孔112具有最好之防電磁輻射效果。 Please refer to FIG. 3 to FIG. 7 , which are schematic diagrams showing the direction in which the diagonal line a extends at an angle of 15 degrees, 30 degrees, 45 degrees, 60 degrees, and 90 degrees with the plane of the circuit board 20 , and each of the six sides The shaped openings 112 each have a maximum aperture b in the Z direction. The electromagnetic compatibility analysis software FLOEMC 6.1 is used to simulate the electric field of the diagonal direction a and the plane where the circuit board 20 is located at the above angles. The initial condition of the simulation is: the internal space of the electronic device 10 The upper meshing accuracy is 0.8mm×0.8mm×0.8mm (length×width×height), the simulation time is 200nm, the simulation frequency is 1.5GHZ, the radiation source model is the 3D antenna radiation source, and the distance radiation under the initial condition The peak field electric field peak at 3 m source is shown in the following table: It can be seen from the above simulation results that when the extending direction of the diagonal line a is at an angle of 0 or 60 degrees with the plane of the circuit board 20, that is, the extending direction of the diagonal line a is parallel to the plane of the circuit board 20 The columnar field electric field outside the electronic device 10 at a distance of 3 m from the radiation source has the smallest peak value, that is, the generated radiation is also the smallest, and thus the opening 112 of the structure has the best anti-electromagnetic radiation effect.

藉由對該對角線a之延伸方向與電路板20所在之平面呈不同角度時該正六邊形開孔112於Z方向上之最大孔徑b進行測量，可以得出該對角線a之延伸方向與電路板20所在之平面分別呈0度/60度、15度/45度、30度/90度時，該正六邊形開孔112於Z方向上之最大孔徑b之比值為1.732：1.7932：2。由此可知僅在該正六邊形開孔112之對角線a之延伸方向與該電路板20所在之平面呈0度或60度角時，該正六邊形開孔112於Z方向上之最大孔徑b為該多邊形開孔112於後板11上旋轉佈設時之最小者。而當該電路板20上插接有其他子電路板時，該正六邊形開孔112之對角線a之延伸方向與該電路板20所在之平面之間之角度亦可取折衷之15度或45度。本發明不限於該多邊形開孔112為正六邊形之情形，亦可適用於其他形狀之多邊形開孔，該多邊形開孔112於後板11上以不同角度旋轉佈設時，在垂直於該第二平面方向上，即Z方向上各具有一最大孔徑b。當該多邊形開孔112為其他形狀時，同樣僅需保證該多邊形開孔112以一角度開設，該多邊形開孔112以該角度開設時，其最大孔徑b為以不同角度旋轉佈設時各最大孔徑b中之最小者。 By measuring the maximum aperture b of the regular hexagonal opening 112 in the Z direction when the extending direction of the diagonal line a is different from the plane of the circuit board 20, an extension of the diagonal line a can be obtained. When the direction and the plane of the circuit board 20 are 0 degrees / 60 degrees, 15 degrees / 45 degrees, 30 degrees / 90 degrees, respectively, the ratio of the maximum aperture b of the regular hexagonal opening 112 in the Z direction is 1.732: 1.7932 :2. Therefore, it can be seen that the regular hexagonal opening 112 is the largest in the Z direction only when the extending direction of the diagonal line a of the regular hexagonal opening 112 is at an angle of 0 or 60 degrees with the plane of the circuit board 20. Aperture b is the multilateral The smallest of the opening 112 is rotated on the rear plate 11. When the other circuit boards are inserted into the circuit board 20, the angle between the extending direction of the diagonal line a of the regular hexagonal opening 112 and the plane of the circuit board 20 may be a compromise of 15 degrees or 45 degree. The present invention is not limited to the case where the polygonal opening 112 is a regular hexagon, and can also be applied to polygonal openings of other shapes. When the polygonal opening 112 is rotated at different angles on the rear plate 11, the second is perpendicular to the second Each has a maximum aperture b in the planar direction, i.e., in the Z direction. When the polygonal opening 112 has other shapes, it is only necessary to ensure that the polygonal opening 112 is opened at an angle. When the polygonal opening 112 is opened at the angle, the maximum aperture b is the maximum aperture when the angle is rotated at different angles. The smallest of b.

綜上所述，本創作確已符合發明專利要求，爰依法提出專利申請。惟，以上所述者僅為本發明之較佳實施方式，舉凡熟悉本發明技藝之人士，爰依本發明之精神所作之等效修飾或變化，皆應涵蓋於以下之申請專利範圍內。 In summary, this creation has indeed met the requirements of the invention patent, and has filed a patent application in accordance with the law. However, the above-mentioned preferred embodiments of the present invention are intended to be within the scope of the following claims.

Claims

一種具有防電磁輻射功能開孔之殼體，包括一位於第一平面上之板體，該板體設有一通風區，該板體上佈設有複數用於通風的多邊形開孔，一第二平面垂直於該第一平面，一電磁輻射發射源位於該第二平面上，該多邊形開孔於板體上以不同角度旋轉佈設時，在垂直於該第二平面方向上各具有一最大孔徑，其中該多邊形為正多邊形，該正多邊形開孔以一角度佈設，該正多邊形開孔以該角度佈設時，其最大孔徑為以不同角度旋轉佈設時各最大孔徑中之最小者。 A casing having an electromagnetic radiation prevention opening, comprising a plate body on a first plane, the plate body is provided with a ventilation zone, and the plate body is provided with a plurality of polygonal openings for ventilation, and a second plane Vertically adjacent to the first plane, an electromagnetic radiation emitting source is located on the second plane. When the polygonal opening is arranged at different angles on the plate body, each of the plurality of apertures has a maximum aperture in a direction perpendicular to the second plane, wherein The polygon is a regular polygon, and the regular polygon opening is disposed at an angle. When the regular polygon opening is disposed at the angle, the maximum aperture is the smallest of the maximum apertures when the rotation is performed at different angles.

如申請專利範圍第1項所述之具有防電磁輻射功能開孔之殼體，其中該多邊形為正六邊形，該正六邊形內之最長對角線與該第二平面平行。 The housing having an electromagnetic radiation prevention opening according to claim 1, wherein the polygon is a regular hexagon, and a longest diagonal line in the regular hexagon is parallel to the second plane.

如申請專利範圍第1項所述之具有防電磁輻射功能開孔之殼體，其中該電磁輻射發射源為一電路板。 The housing having the anti-electromagnetic radiation function opening according to claim 1, wherein the electromagnetic radiation emitting source is a circuit board.

如申請專利範圍第3項所述之具有防電磁輻射功能開孔之殼體，其中該電路板上裝設一散熱設備，該板體上相應於該散熱設備設有一通風區，該複數多邊形開孔位於該通風區內。 The housing having the anti-electromagnetic radiation function opening according to claim 3, wherein the circuit board is provided with a heat dissipating device, and the plate body is provided with a ventilation area corresponding to the heat dissipating device, and the plurality of polygons are opened The hole is located in the venting zone.

一種電子裝置，包括一後板、及一垂直於該後板之側板，該側板上裝設一電路板，該後板設有一通風區，該後板上佈設有複數用於通風的多邊形開孔，該多邊形開孔於板體上以不同角度旋轉佈設時，在垂直於該電路板所在平面方向上各具有一最大孔徑，其中該多邊形為正多邊形，該正多邊形開孔以一角度佈設，該正多邊形開孔以該角度佈設時，其最大孔徑為以不同角度旋轉佈設時各最大孔徑中之較小者。 An electronic device includes a rear plate and a side plate perpendicular to the rear plate. The side plate is provided with a circuit board. The rear plate is provided with a ventilation area, and the rear plate is provided with a plurality of polygonal openings for ventilation. When the polygon opening is arranged at different angles on the board body, each of the polygon apertures has a maximum aperture in a direction perpendicular to a plane of the circuit board, wherein the polygon is a regular polygon, and the regular polygon aperture is disposed at an angle, When the regular polygon opening is disposed at this angle, the maximum aperture is the smaller of the largest apertures when the rotation is performed at different angles.

如申請專利範圍第5項所述之電子裝置，其中該多邊形為正六邊形，該正六邊形內之最長對角線與該電路板所在之平面平行。 The electronic device of claim 5, wherein the polygon is a regular hexagon, and a longest diagonal line within the regular hexagon is parallel to a plane in which the circuit board is located.

如申請專利範圍第5項所述之電子裝置，其中該電路板上裝設一散熱設備，該後板上相應於該散熱設備設有一通風區，該複數多邊形開孔位於該通風區內。 The electronic device of claim 5, wherein the circuit board is provided with a heat dissipating device, and the rear plate is provided with a ventilation zone corresponding to the heat dissipating device, and the plurality of polygonal openings are located in the ventilation zone.

如申請專利範圍第5項所述之電子裝置，其中該多邊形為正六邊形，該電路板上還裝設複數子電路板，該正六邊形內之最長對角線與該電路板所在之平面呈15度或45度。 The electronic device of claim 5, wherein the polygon is a regular hexagon, and the circuit board is further provided with a plurality of sub-boards, the longest diagonal line of the regular hexagon and the plane of the circuit board It is 15 degrees or 45 degrees.