CN1302508C - Cathode ray tube display device - Google Patents
Cathode ray tube display device Download PDFInfo
- Publication number
- CN1302508C CN1302508C CNB031113044A CN03111304A CN1302508C CN 1302508 C CN1302508 C CN 1302508C CN B031113044 A CNB031113044 A CN B031113044A CN 03111304 A CN03111304 A CN 03111304A CN 1302508 C CN1302508 C CN 1302508C
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- ray tube
- cathode ray
- mainboard
- cathode
- metal
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Abstract
The present invention discloses a cathode ray tube display, which is composed of a cathode ray tube, a main board at the bottom of the cathode ray tube, a tower-shaped shielding layer used for protecting the main board and a front casing where the cathode ray tube, the main board and the tower-shaped shielding layer are installed. Sense wires extracted from the tower-shaped shielding layer are connected between springs formed on the upper part of the front casing of the cathode ray tube display. The cathode ray tube contact the main board by metal springs between the main board and the cathode ray tube. The tower-shaped shielding layer is connected with the main board by the fitting of a metal hook and a metal hole. By the contact part arranged at the bottom of the main board, the integral connection and the earth connection of the cathode ray tube, the tower-shaped shielding layer and the main board are realized so as to effectively shield electronic waves. The present invention has the advantages that electronic waves can be cut off without installing metal frames around the cathode ray tube, and thus, screws are not needed, installation workload is reduced and production efficiency is increased.
Description
Technical field
The present invention relates to a kind of cathode-ray tube display, relate in particular to a kind of cathode-ray tube display without framework screening electron ripple.
Background technology
Fig. 1 is the schematic diagram of the structure of existing general cathode-ray tube display (not comprising outside cabinet), is to show the figure that eliminates the outward appearance cover.
As shown in the figure, cathode-ray tube display is made up of following part: cathode ray tube 2; The position is at the mainboard 4 of cathode ray tube 2 bottoms; The tower screen 6 of protection mainboard 4; The frame for cathode ray tube 8 of above-mentioned parts etc. is installed.
The course of action schematic illustration of relevant cathode ray tube 2 is exactly: from three electron beam hits cathode ray tubes, the 2 fluorescent plate faces of electron gun (omitting the figure) ejaculation, thereby produce shades of colour.The various atoms of this process by mainboard 4 form.
Be the action of cathode ray tube 2, cathode ray tube 2 inner generations near 30,000 volts of high pressure, and the complicated circuit of process mainboard 4 is to outside ejected electron ripple.
In existing cathode-ray tube display, for shielding above-mentioned electron waves, the method that framework 8 is set on cathode ray tube 2 optimum positions is come the screening electron ripple.
Fig. 2 is the schematic diagram that only shows frame for cathode ray tube 8 in the cathode-ray tube display of Fig. 1.
As shown in the figure, the shape of frame for cathode ray tube 8 is near dimetric framework, and open its inside.When in frame for cathode ray tube 8 cathode ray tube 2 being installed, (referring to Fig. 1) fixes with screw 82.When mounted, a plurality of springs 84 that are attached in the framework 8 contact with cathode ray tube 2, and therefore forming ground connection realizes the screening electron ripple with this.
Described ground connection is used as shown in Fig. 3, and mainboard 4 is fixed on the frame for cathode ray tube 8, for tower screen 6 is installed, as Fig. 1 diagram, thereby with screw 82 tower screen 6 is fixed on formation ground connection on the framework 8.Simultaneously that mainboard 4 and tower screen 6 usefulness screws 82 is fixing, form the screening electron wave structure thus.
But this existing cathode-ray tube display because use frame for cathode ray tube, has not only increased installing component, and increases screw tower screen and mainboard, and this has just increased the installment work time, the problem that existing method that Here it is exists.
Summary of the invention
The present invention provides a kind of cathode-ray tube display, the present invention to adopt without the same effectively screening electron wave structure of frame for cathode ray tube in order to address the above problem.
The present invention is achieved in that cathode ray tube; The position is at the mainboard of cathode ray tube bottom; The tower screen of protection mainboard; The fore shell of above-mentioned cathode ray tube, mainboard, tower screen parts is installed; Sense wire is to draw from the top of tower screen, and the contact on the fore shell front portion of its junction is used between the spring; Above-mentioned mainboard by metal spring between cathode ray tube and the mainboard, realizes that mainboard is connected with cathode ray tube in the cathode ray tube bottom; Above-mentioned tower screen is connected with mainboard, and the rear face of tower screen is provided with connecting hole, forms and the corresponding hook of connecting hole at the mainboard rear face; A plurality of contact sites are set, whole cathode ray tube, tower screen, mainboard parts and the final ground connection realization screening electron ripple of connecting as mentioned above, and in the mainboard side.
Advantageous effect of the present invention is: in order to cut off electron waves, cathode ray tube metal framework on every side need not be set, therefore also just not have the screw problem of using.Simultaneously, therefore the present invention has reduced installation workload by the whole method screening electron ripple that connects of parts such as cathode ray tube, cabinet, mainboard, tower shielding, has improved production efficiency.
Description of drawings
Fig. 1 is the cathode-ray tube display structural representation of prior art;
Fig. 2 is the view that only shows the frame for cathode ray tube part in the cathode-ray tube display of Fig. 1;
Fig. 3 is the syndeton schematic diagram of the framework around the existing cathode ray tube;
Fig. 4 is the representative instance schematic diagram according to the cathode-ray tube display of requirement design of the present invention;
Fig. 5 is by the connection cathode ray tube of requirement design of the present invention and the metal spring structural representation and the part enlarged drawing of mainboard;
Fig. 6 a and Fig. 6 b be Fig. 5 the metal spring assembling separate schematic diagram and connection layout;
Fig. 7 is tower screen and the mainboard syndeton schematic diagram by requirement design of the present invention;
Fig. 8 is fore shell connection spring structure plane graph and the part enlarged drawing by requirement design of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing, the repetition that occurs in the declarative procedure, and the part consistent with existing technology need be quoted the symbol of available technology adopting.
Fig. 4 is the cathode-ray tube display representative instance schematic diagram according to requirement design of the present invention.
Its structure is formed: cathode ray tube 2; The position is in cathode ray tube 2 bottoms and bear the video of cathode ray tube and the mainboard 40 of audio-frequency function; Shelter the main position of cathode ray tube 2 and protect box (box) the tower screen 60 of mainboard 40; The compositions such as fore shell of above-mentioned parts are installed.In this figure, the back cover (omitting among the figure) of sheltering the integral display outward appearance does not draw, and only shows the fore shell front portion 32 of sheltering display picture portion optimum position.
The display that in Fig. 4, designs according to requirement of the present invention, it is characterized in that removing the frame for cathode ray tube on the existing display optimum position, the structure that replaces it is a Metal Contact and whole form ground connection each other between the parts such as cathode ray tube 2, mainboard 40, tower screen 60.
Below cathode-ray tube display of the present invention done further be described in more detail.
Fig. 5 is the schematic diagram and the part enlarged drawing of cathode ray tube 2 and mainboard 40 contact structures.
With reference to figure as can be seen, cathode ray tube 2 and contacting of mainboard 40 are that the metal spring 20 of backup plate formula spring shape is realized.From the enlarged drawing of A as seen, be provided with metal spring 20, realized that therefore cathode ray tube 2 and mainboard are in contact condition all the time in mainboard 40 and contact site, cathode ray tube bottom surface.
To metal spring 20 and the structure of supporting it, in Fig. 6 a and Fig. 6 b, amplify and show.
Fig. 6 a is a metal spring assembling separation graph, and as can be seen, its structure is made up of metal location division 12 and metal spring 20 and the link 15 that is connected top metal location division 12 and metal spring 20 from the figure.Link 15 is installed for convenient, uses rubber connecting member for well.
Horizontal bends in metal location division 12 is provided with hole (hole) 12a.Keep certain intervals that the hook 12b of past lower process is set with hole 12a.Metal location division l2 is attached on the mainboard 40.In order to connect top mainboard 40 and cathode ray tube 2,, metal spring 20 is set between them as the connection means.
Metal spring 20 as shown in the figure, the one end is crooked leaf spring; The position that contacts with the horizontal bends of metal location division is provided with hole 20a as upper surface hole, and is provided with another hole 20b corresponding with linking up with 12b.As shown in the figure, the shape of hook 12b becomes four jiaos, and therefore the hole corresponding with it also should become four jiaos.
For 12a, the hook 12b in the 12 horizontal bends holes that make the metal location division keeps identical position with hole 20a, the 20b of metal spring 20, after the metal spring alignement, link 15 insertions of using rubber to make, so easy combination.In this state, metal spring 20 tops are arranged to place cathode ray tube 2; In order to recover spring force, the metal location division 12 of cathode ray tube 2 and mainboard 40 is arranged to realize easily that conduction is connected.
Fig. 7 be requirement according to the present invention in cathode ray tube, realize the diagram of mainboard 40 and tower screen 60 contact structures.
The position of tower screen 60 is arranged on the main position of sheltering cathode ray tube, centers on the optimum position of mainboard 40 simultaneously.The rear face of tower screen 60 is provided with connecting hole 62, form and connecting hole 62 corresponding hooks 42 at mainboard 40 rear faces, thereby tower screen 60 can be reduced to below time coupling hook 42 from top and sandwich at connecting hole 62, impel tower screen 60 and mainboard 40 to realize that conduction is connected.Thereby the position that top connecting hole 62 forms is inserted the pilot hole 41 of mainboard 40 and is realized the position correction alignment.
Fig. 8 shows the fore shell anterior 32 of cathode-ray tube display and is shown enlarged in the display casing that replaces existing frame for cathode ray tube, spring 50 enlarged drawings that can contact.
On scheming, can find out, be provided with the connecting portion 70 of contact above the fore shell front portion 32 of cathode-ray tube display with spring 50 and sense wire.Contact also is to have adopted leaf spring with spring 50, and the space between two leaf springs connects the structure of sense wire 72 (with reference to Fig. 4).
As can be seen, this sense wire is to draw from the top of tower screen 60 to described sense wire 72 from the part enlarged drawing of Fig. 4, and the contact on fore shell front portion 32 of its junction is used between the spring.Adopt aforesaid structure, just can form the ground structure that is connected to each other between fore shell front portion 32, cathode ray tube 2 and the tower screen 60.
In Fig. 4, the contact chip 28 that is attached to the plate face left and right sides of cathode ray tube 2 also has been to connect tower screen 60 and cathode ray tube 2 effects.
As mentioned above, cathode-ray tube display according to requirement design of the present invention, the principle of its formation is impelled the whole connection of these parts such as cathode ray tube 2, fore shell front portion 32, mainboard 40 and tower screen 60 exactly, and in mainboard 40 sides a plurality of contact sites 48 are set, cut off electron waves by it and produce possibility.Conduct electricity contact at the rear portion of cathode ray tube each other by the contact edge of conductivity.
Claims (4)
1, a kind of cathode-ray tube display, its feature comprises: cathode ray tube; The position is at the mainboard of cathode ray tube bottom; The tower screen of protection mainboard; The fore shell of above-mentioned cathode ray tube, mainboard, tower screen is installed;
Sense wire is to draw from the top of tower screen, and the contact on the fore shell front portion of its junction is used between the spring;
By the metal spring between cathode ray tube and the mainboard, realize that mainboard is connected with cathode ray tube;
The rear face of tower screen is provided with connecting hole, forms and the corresponding hook of connecting hole at the mainboard rear face, to realize being connected of above-mentioned tower screen and mainboard;
And in the mainboard side a plurality of contact sites are set, whole cathode ray tube, tower screen, mainboard and the final ground connection realization screening electron ripple of connecting.
2, according to the described cathode-ray tube display of claim 1, it is characterized in that above-mentioned metal spring, the one end is crooked leaf spring, the metal location division is attached on the mainboard, be installed in the hole of the metal location division on the mainboard and the hole of the metal spring at the position that contacts with the metal location division between, the link that uses rubber to make inserts.
3,, it is characterized in that above-mentioned metal spring and metal location division are that the hook of hook hole and metal location division by metal spring is corresponding and are connected to come alignement to connect according to the described cathode-ray tube display of claim 2.
4, according to the described cathode-ray tube display of claim 1, the contact chip that it is characterized in that the plate face left and right sides of cathode ray tube also has been the effect that connects tower screen and cathode ray tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031113044A CN1302508C (en) | 2003-03-28 | 2003-03-28 | Cathode ray tube display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031113044A CN1302508C (en) | 2003-03-28 | 2003-03-28 | Cathode ray tube display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1534716A CN1534716A (en) | 2004-10-06 |
| CN1302508C true CN1302508C (en) | 2007-02-28 |
Family
ID=34283460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031113044A Expired - Fee Related CN1302508C (en) | 2003-03-28 | 2003-03-28 | Cathode ray tube display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1302508C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056208A (en) * | 1990-04-24 | 1991-11-13 | 顾浩 | Protector for cathoda-ray tube |
| JPH08321266A (en) * | 1995-05-26 | 1996-12-03 | Nec Kansai Ltd | Cathode-ray tube device |
| CN1178032A (en) * | 1996-01-11 | 1998-04-01 | 阿尔弗雷多·阿拉西亚·阿奈斯 | Demagnetization and ground cornection device for colour cathode ray tubes |
| CN2278274Y (en) * | 1996-08-22 | 1998-04-08 | 明碁电脑股份有限公司 | Device for reducing magnetic field leakage of deflecting system |
| CN2370513Y (en) * | 1999-03-01 | 2000-03-22 | 深圳市恩益禧电子有限公司 | Screen protector of image display terminal |
| JP2001169208A (en) * | 1999-12-03 | 2001-06-22 | Mitsubishi Electric Corp | Cathode ray tube display device |
-
2003
- 2003-03-28 CN CNB031113044A patent/CN1302508C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056208A (en) * | 1990-04-24 | 1991-11-13 | 顾浩 | Protector for cathoda-ray tube |
| JPH08321266A (en) * | 1995-05-26 | 1996-12-03 | Nec Kansai Ltd | Cathode-ray tube device |
| CN1178032A (en) * | 1996-01-11 | 1998-04-01 | 阿尔弗雷多·阿拉西亚·阿奈斯 | Demagnetization and ground cornection device for colour cathode ray tubes |
| CN2278274Y (en) * | 1996-08-22 | 1998-04-08 | 明碁电脑股份有限公司 | Device for reducing magnetic field leakage of deflecting system |
| CN2370513Y (en) * | 1999-03-01 | 2000-03-22 | 深圳市恩益禧电子有限公司 | Screen protector of image display terminal |
| JP2001169208A (en) * | 1999-12-03 | 2001-06-22 | Mitsubishi Electric Corp | Cathode ray tube display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1534716A (en) | 2004-10-06 |
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Granted publication date: 20070228 |