WO2004023277A1

WO2004023277A1 - The shell of computer

Info

Publication number: WO2004023277A1
Application number: PCT/CN2003/000147
Authority: WO
Inventors: Chao Xu
Original assignee: Legend (Beijing) Limited
Priority date: 2002-09-06
Filing date: 2003-02-25
Publication date: 2004-03-18
Also published as: AU2003211669A1; CN1190720C; CN1480815A

Abstract

The invention is some kind of shell of computer. It composes of a computer exterior structure, which is made of some firm insulating material, and an inner supporting structure layer. The character in that is that the side which closing up the computer's inner circuit of the structure layer is covered with a shield film. It can absorb the wireless signal which was brought by the running of computer inner circuit. And the wireless signal will not leak out. One or some grooves were located in the structure layer and grooves are on the out side closing up the computer's outer environment. There is computer's antenna in each groove. On the side which closing up computer's inner environment of the structure layer, there is a raised flat which lies in the opposite place of each antenna. The periphery of the raised flat is covered with shield film and there is an eyelet in the middle. A conductor connecting to the antenna lies in the eyelet, and thereby an antenna jack was come into being. One end of the lead which feeding the wireless signal plug in the jack and the other end links to the wireless data corresponding transmitting assembly inside the computer.

Description

Computer case

Technical field

The invention relates to a computer casing, and belongs to the technical field of computer structure design. Background of the invention

At present, commonly used computer casings are composed of a simple combination of ordinary metal or non-metal materials, as shown in FIG. 6, which is a relatively common desktop computer casing now. This type of computer with a traditional shell structure has two main defects: 1. Under normal circumstances, the electromagnetic signals generated by the internal circuit operation of a computer system will be converted into energy, which cannot be naturally released and gathers in the metal part of the shell. The metal part of the computer casing forms a potential difference with the external environment of the computer. A discharge phenomenon occurs when a computer operator or other electrical conductors that have the same potential as the external environment or have a potential difference from the case that collects electromagnetic energy contacts the case. Usually, when using a computer, the operator often cannot avoid contacting certain input devices of the computer system, such as a keyboard and a mouse. This short-time discharge phenomenon is conducted to these input devices through the human body. If the input device casing is not specially treated, it may easily cause input confusion and may even cause serious misoperations. 2. At present, the operating frequency of the internal circuits of the computer host system has approached the transmission frequency of radio wave signals for wireless data communications, and the internal circuits inevitably emit energy as electromagnetic waves. If these electromagnetic waves accumulate in the metal of the computer casing, When part of the energy reaches a certain level, the non-metallic part that penetrates the computer case is directly released into the computer's external environment. Since these electromagnetic energy are generated by a circuit whose operating frequency approaches the frequency of wireless data transmission, it will inevitably mingle with the wireless data transmission signal of the surrounding environment and interfere with the wireless data signal of the computer, affecting its wireless Data communication transmission quality. At present, wireless data communication computers generally use the following two methods to process wireless data communication components: 1. The wireless data communication components in the computer system are arranged as far as possible outside the computer casing, which has the disadvantage of reducing the structure of the computer system Compactness and integrated mobility. 2. On the basis of the existing computer structure, the antenna for wireless data communication is extended as an independent component to the outside of the computer casing. The disadvantage is that the antenna and the computer casing are not easy to match in structure, and the antenna is easily broken. The above two methods have a common disadvantage: Since unnecessary electromagnetic signals generated by the operation of the internal circuit of the computer leak to the external environment of the computer, it is still impossible to effectively avoid interference with its wireless data communication signals.

With the increasing popularity of wireless data communication in computer systems and the continuous improvement of the integration and mobility of computer systems, wireless data communication has become an important transmission method for various computers and mobile multimedia information equipment. However, since the operating frequency of the internal circuit of the computer now covers multiple frequency bands of wireless communication, and the interference on wireless data communication caused by the leakage of electromagnetic energy during operation, in many occasions, high-speed computer systems, especially It is forbidden to use high-speed mobile computer systems, which brings great inconvenience to users. Summary of the Invention

An object of the present invention is to provide a computer casing capable of overcoming various defects in the prior art mentioned above, so that a high-speed computer or mobile multimedia information device with wireless data communication capability installed with the casing can be used safely, without Because the electromagnetic signals generated by it are converted into energy and accumulated on the shell, its input operation is affected, and it will not interfere with its wireless data communication because the electromagnetic signals are leaked into the external environment.

The object of the present invention is achieved as follows: A casing of a computer includes: a structural layer made of a deformation-resistant insulating material, the structural layer forming an external structure of the computer and a supporting structure of internal components; Close to the internal circuit of the computer on said structure layer One side is covered with a shielding layer that absorbs unwanted electromagnetic signals generated by the operation of the internal circuit of the computer and prevents it from leaking to the outside; one or more grooves are provided on the side of the structural layer close to the external environment of the computer, A wireless data communication antenna of the computer is embedded in each groove; a protrusion is provided on a side of the structural layer opposite to the location of each antenna and close to the internal environment of the computer, and the outer periphery of the protrusion is covered with a shielding layer A small hole is provided in the middle of the hole, and a conductor electrically connected to the wireless data communication antenna is laid in the small hole, thereby forming an antenna insertion hole for inserting the antenna signal wire.

The anti-deformation insulating material for the structural layer is engineering plastic or other polymer materials.

The shielding layer covered on the structure layer on the side close to the internal circuit of the computer is made of a metal material with good ability to absorb electromagnetic signals.

The shielding layer is a metal sheet attached to the structural layer near the internal circuit of the computer, or a metal coating uniformly sprayed on the structural layer near the internal circuit of the computer. The internal space of the computer forms a shielded space that attracts electromagnetic signals.

The shielding layer is connected with an electromagnetic release circuit through a conductor, and the other end of the electromagnetic release circuit is connected to a constant zero potential, which is used to dry discharge the electromagnetic energy accumulated on the shielding layer to maintain the zero potential of the shielding layer so that it can be Continuously absorb unwanted electromagnetic signals inside the computer.

The plane shape of the groove provided on the structure layer should be consistent with the plane structure shape of the wireless data communication antenna of the computer embedded in the middle, and the depth of the groove is the same as or similar to the thickness of the antenna.

The thickness of the insulating material provided with the structural layer embedded in the groove of the wireless data communication antenna should ensure that the antennas on both sides and the shielding layer are insulated from each other, and the material strength should be able to support the antenna and the shielding layer firmly.

The size of the hole of the antenna insertion hole in the middle of the boss should be smaller than the shielding layer on the outer periphery. The notch insulates the antenna connection hole and the shielding layer from each other.

The conductor for feeding the antenna signal is a high-frequency shielded conductor. The core of the conductor is composed of a flexible linear metal conductor. The outer side of the core is an insulating sleeve with a metal shielding net embedded in the middle. The embedded metal shielding net Connect a constant zero potential to shield the electromagnetic signals generated by the internal circuit of the computer from interference with the data signals transmitted by its core wire.

The computer is a desktop computer, or a notebook computer, or a palmtop computer. The main technical feature of the computer casing of the present invention is to shield and absorb the electromagnetic signals generated by the operation of the internal circuit of the computer through the shielding layer on the inner wall of the structural layer, to prevent it from leaking to the external environment, and to avoid interference with wireless data communication At the same time, the electromagnetic energy accumulated on the shielding layer is continuously released through the electromagnetic release circuit to maintain the zero potential of the shielding layer, so that it can continuously absorb unnecessary electromagnetic signals inside the computer. Another feature is that the antenna component for wireless data communication is embedded in the groove on the outer wall of the structural layer, which solves the problem of the electrical connection between the antenna and the wireless data communication signal transmitting component of the internal circuit of the computer and the antenna is easily damaged, and guarantees that This computer's compactness and integrated mobility. In short, the structure design of the present invention is simple, practical, easy to manufacture, economical, convenient to use, and safe, and has good prospects for popularization and application. Brief description of the drawings

FIG. 1 is a schematic perspective perspective view of a housing structure of a computer of the present invention;

FIG. 2 is an enlarged schematic view showing a structure of a local area of an antenna portion in a casing of a computer according to the present invention; FIG.

3 is a schematic diagram of a cross-sectional structure of a local area of a portion of an antenna in a housing of a computer according to the present invention;

FIG. 4 is a schematic cross-sectional structure of the shielding layer of the present invention and the operation of unwanted electromagnetic signals generated by the operation of the internal circuit of the computer gathered in the shielding layer of the casing of the present invention and the operation of the electromagnetic release circuit Schematic diagram

FIG. 5 is a schematic cross-sectional view of a wire for feeding antenna signals according to the present invention.

FIG. 6 is a schematic diagram showing a conventional desktop computer case. Mode of Carrying Out the Invention

The present invention is described in detail below with reference to the drawings.

Referring to FIGS. 1-5, the invention is a computer casing, comprising: a structural layer 1 made of a deformation-resistant insulating material, the structural layer 1 forming an external structure of the computer and a supporting structure of internal components. The deformation-resistant insulating material usually used for the structural layer 1 is an engineering plastic or other polymer material. A shielding layer 5 is covered on the structural layer 1 near the inside of the computer 10, and the shielding layer 5 forms a shielding space in the internal space of the computer for attracting and shielding the unwanted electromagnetic interference signals 15 generated by the operation of the internal circuit 16 of the computer. And it does not leak to the outside and meets internationally recognized electromagnetic shielding standards. The shielding layer 5 is made of a metal material having a good ability to absorb electromagnetic signals, such as silver, copper, or a copper alloy. The shielding layer 5 is a metal foil (such as copper foil, silver foil or other metal foil) attached to the structural layer 1 near the circuit inside the computer 10, or evenly sprayed on the structural layer 1 near the circuit inside the computer 10 The metal coating 10 forms a closed or nearly closed space inside the computer.

One or more grooves 6 are provided on the structure layer 1 on the side close to the external environment 9 of the computer (a ring-shaped groove is shown in FIG. 1), and each groove 6 is embedded with wireless data of the computer Communications antenna 2. The planar shape of the groove 6 should be consistent with the planar structural shape of the wireless data communication antenna 2 of the computer embedded in the middle. For example, the planar shape of the antenna 2 shown in FIG. 1 is also a ring shape, which is exactly the same as the groove. The plane shape of 6 is the same and fills it; and the depth of the groove 6 is the same as or similar to the thickness of the antenna 2 (see FIG. 3).

The antenna 2 of the present invention is a thin planar member made of a good metal conductor material, and is embedded in A part of the groove 6 on the structural layer 1 that matches the shape of the antenna passes through the antenna connection hole 4 on the structural layer 1 and one end of the feeding antenna signal wire 7 shown in FIG. 2. The antenna signal wire 7 The other end is directly connected to the wireless data transmitting part 8 inside the computer, and is used to guide the wireless data communication signal 17 transmitted by it to the antenna 2, and the antenna 2 transmits the electromagnetic signal 17 to the external environment 9 of the computer. Since the antenna does not belong to the structural component of the casing of the present invention, it will not be repeated here.

The thickness of the insulating material of the structural layer 1 at the groove 6 provided with the embedded wireless data communication antenna 2 should ensure that the antenna 2 on both sides and the shielding layer 5 are insulated from each other, and the material strength should be able to firmly support the antenna 2 and the shield Layer 5. The shielding layer 5 is connected to an electromagnetic release circuit 11 through a conductor, and the other end of the electromagnetic release circuit 11 is connected to a constant zero potential 14 and is used to sharply release the electromagnetic energy accumulated on the shielding layer 5 to maintain the zero potential of the shielding layer 5, It is able to continuously absorb the useless electromagnetic signal 15 released by the circuit 16 inside the computer 10 during operation, and then convert it into electromagnetic energy 12 and feed it to the zero potential 14 through the electromagnetic release circuit 11 (see FIG. 4). The shielding layer 5 can also be electrically connected and fixed to a conventional component of the computer 10, a zero-potential metal bracket, and can also release the electromagnetic energy accumulated on the shielding layer 5 well. One or two small round bosses 3 are provided on the structural layer 1 opposite to the location of each antenna 2 and close to the computer interior 10, and the outer periphery of each small round boss 3 is covered with a shielding layer 5, with a middle A small circular hole 4 is provided, and a conductor electrically connected to the wireless data communication antenna 2 is laid in the small circular hole 4, thereby forming an antenna insertion hole (see FIG. 2 and FIG. 3). The aperture of the antenna insertion hole in the middle of the small round boss 3 should be smaller than the notch 20 of the outer shielding layer 5 so that the antenna insertion hole and the shielding layer 5 are insulated from each other (see FIG. 3).

The 7-end of the feed antenna signal wire is inserted into the antenna insertion hole, and the other end is directly connected to the wireless data communication signal transmitting part of the internal circuit of the computer. The wire 7 for feeding the antenna signal is a high-frequency shielded wire. The core wire of the wire 7 is composed of a flexible wire-shaped metal conductor 19. The outer side of the core wire 19 is an insulating sleeve 18 with a metal shielding net 13 embedded in the middle. King The shielding network 13 is connected to a constant zero potential 14 through an electromagnetic release circuit 11 to shield the electromagnetic signal 15 generated by the internal circuit of the computer from the interference of the data signal 17 transmitted by its core 19, so that the wireless data communication signal inside the computer can be basically lossless. The ground is conducted by the conductive core wire 19 of the conducting wire to the antenna 2; at the same time, it is ensured that a short circuit does not occur when the outer wall sleeve 18 contacts the internal operating circuit of the computer.

The computer according to the present invention may be a desktop computer, or a notebook computer, or a palmtop computer with wireless data communication; that is, the present invention is applicable to various types of computer casings, as long as the area of the casing is large. A groove is placed on the surface to ensure that the quality and strength of the wireless data signals transmitted by the antenna conform to generally accepted international or domestic standards, and to insulate the antenna and its signal feeder from the shielding layer on the inner wall of the antenna.

Claims

Claim

1. A computer casing, comprising: a structural layer made of a deformation-resistant insulating material, the structural layer forming an external structure of the computer and a supporting structure of internal components; its characteristics are:

The side close to the internal circuit of the computer on the structural layer is covered with a shielding layer that absorbs unnecessary electromagnetic signals generated by the operation of the internal circuit of the computer and does not leak to the outside; on the structural layer, it is close to the external environment of the computer One or more grooves are provided on one side of the computer, and the wireless data communication antenna of the computer is embedded in each groove;

On the structural layer, a boss is provided on the side opposite to the location of each antenna and close to the internal environment of the computer. The outer periphery of the boss is covered with a shielding layer, and a small hole is provided in the middle. A conductor electrically connected to the wireless data communication antenna, thereby forming an antenna plug hole for inserting a signal wire of the feeding antenna.

2. The casing of a computer according to claim 1, wherein: the deformation-resistant insulating material for the structural layer is an engineering plastic or other polymer material.

3. The casing of a computer according to claim 1, wherein the shielding layer covered on the side of the structural layer close to the internal circuit of the computer is made of a metal material with good ability to absorb electromagnetic signals.

4. The casing of a computer according to claim 3, wherein: the shielding layer is a metal sheet attached to the structure layer near the internal circuit side of the computer, or a layer close to the computer internal circuit on the structure layer. Spray-coated metal coating on the sides.

5. The computer casing according to claim 3, wherein: the shielding layer is connected with an electromagnetic release circuit through a conductor, and the other end of the electromagnetic release circuit is connected to a constant zero potential.

6. The casing of a computer according to claim 1, wherein: The plane shape of the groove provided on the structure layer is consistent with the plane structure shape of the wireless data communication antenna of the computer embedded in the middle, and the depth of the groove is the same as or similar to the thickness of the antenna.

7. The casing of a computer according to claim 2 or 6, characterized in that: the thickness of said insulating material provided with a structural layer embedded in the groove of the wireless data communication antenna is to ensure the antenna and the shielding layer on both sides thereof. They are insulated and isolated from each other, and their material strength should be able to support the antenna and the shield firmly.

8. The computer casing according to claim 1, wherein the size of the hole of the antenna insertion hole in the middle of the boss is smaller than the gap of the shielding layer on the outer periphery.

9. The computer casing according to claim 8, wherein: the wire for feeding the antenna signal is a high-frequency shielded wire, and the core of the wire is made of a flexible linear metal conductor, and the outer side of the core wire is therein A metal shielding net is embedded between the insulating sleeves, and the embedded metal shielding net is connected to a constant zero potential.

10. The casing of the computer according to claim 1, wherein: the computer is a desktop computer, a notebook computer, or a palmtop computer.