CN100486313C

CN100486313C - Shell for display made of magnesium/aluminum alloy through die casting process

Info

Publication number: CN100486313C
Application number: CNB2006100774012A
Authority: CN
Inventors: 黄建德
Original assignee: SHANGHAI DERUI METAL PRODUCTS CO Ltd
Current assignee: SHANGHAI DERUI METAL PRODUCTS CO Ltd
Priority date: 2006-04-18
Filing date: 2006-04-18
Publication date: 2009-05-06
Anticipated expiration: 2026-04-18
Also published as: CN101060598A; WO2007118370A1

Abstract

The related Mg-/Al-alloy outer shell for plasma or LC TV comprises: a die-casting front frame, a die-casting back cover, and some screw structures on pre-set position for fixing display member. This invention has super strength and heat resistance, saves material, convenient to recycle, and can also ground for eliminating static electricity.

Description

The casing of using with the display of magnesium alloy or aluminium alloy compression casting

Technical field

The present invention relates to the casing that displays such as a kind of LCD TV with magnesium alloy or aluminium alloy compression casting, plasm TV and desktop display are used, be meant especially and a kind ofly make with magnesium alloy or aluminum alloy materials die casting, and be provided with spiro connection structure in book office, with set member assembling in direct and the display, to save many metal fixings, and can assemble and save assembly expenses fast, and utilize again because of material price is cheap, recyclable, so can reduce material cost.

Background technology

Progress along with science and technology, traditional picture tube TV little by little can be replaced by LCD, the liquid crystal panel (LCD) that main cause is LCD is thin to make overall volume little than the conventional picture tube TV, the maturation of manufacturing technology in addition, price is reduced, and then attract consumer's desire to buy, so market future of LCD is with flourish.

As shown in Figure 8, display device structure now, it includes: a casing, form by preceding frame 91 and bonnet 92; And a liquid crystal panel (LCD) 93, be coated with metal fixed head 94 to be located at preceding frame 91 by metal fixed head 94: and a circuit board 95, in conjunction with an electromagnetic wave proof net 96, be located on the metal fixed head 94.Because preceding frame 91, the bonnet 92 of casing all adopt plastic material to make, all fragile on heat-resisting, impact strength and tensile strength, therefore the direct and interior set member assembling of display of casing inconvenience, so the interior set member of display need attach metal fixing and can fix, so not only assemble expense loaded down with trivial details and the increase assembling.

In sum, because the casing of display now all adopts plastic material to make, it has following deficiency at least:

1. in price: following oil is day by day exhausted, and output more and more is critical, and crude oil price hurricane height influences the plastic raw materials short supply, causes price and skyrockets, and need pay the utmost attention to the material of replacement.

2. aspect physical characteristic: the IBM Corporation of Japan tests, and proves that plastic material is zero to electromagnetic shielding effect, only electroplates or metal level; And, can't get rid of static, so often there is static residual because plastic material can not conduct electricity.

3. aspect the intensity: on heat-resisting, impact strength and tensile strength, cabinet is fragile, if just have embrittlement when being subjected to sharp-pointed external impacts suddenly, the phenomenon of bursting apart produces.

4. aspect fusing point: 90 ℃ of ABS fusing points, PC be 160 ℃ thermo-labile, easily produce noxious substance.

5. aspect the environmental protection recovery: use the verified meeting of cabinet to produce noxious substance, can produce PBDEs because of having brominated flame retardant, carcinogenicity is arranged, generate heat through long-term the use, room air is polluted in loss, so white collar class is contaminated the darkest.

6. aspect international organization's requirement: cabinet reclaims difficulty, and increase cost recovery contaminated environment, finally human health is worked the mischief, European Union comes into effect harmful substance ban (RoHS) July 1 2006 this year, emphasize restriction use noxious substance, (WEEE) problem of product life cycle terminal is emphasized in instruction, and it is unfavorable to use harmful substance that environment and health are caused.

7. aspect assembling: above stated cabinet and needed with the metal fixing collocation morely, increase metal fixing and assembly cost.

8. aspect outward appearance: the cabinet performance is tradition, also can't manifest metal-like.

9. aspect cost: the difficult reduction recycling of the defective products that is produced in the cabinet production process, so increase material cost.

By the above as can be known, do not reach perfect condition on the existing display casing structure, thereby need improvement.Based on above reason, the inventor actively searches out a remedy, and design, experiment via have many times obtained the present invention.

Summary of the invention

The objective of the invention is to obtain a kind of metal fixing and electromagnetic wave proof net of saving in the display, and have the casing that environmental protection, intensity displays such as the LCD TV with magnesium alloy or aluminium alloy compression casting, plasm TV and desktop display good, that can get rid of effects such as static, heat radiator are fast, attractive in appearance, low cost of manufacture are used.

Textural including: preceding frame, bonnet, it is that material die casting is made with magnesium alloy or aluminium alloy, is provided with spiro connection structure in book office, in order to set member in the fixing display; Its Material Strength is good, crashworthiness is non-friable and heat-resisting, can be directly and display in set member assembling, to save existing plastic housing display for the incidental metal fixing of mounting structure, can assemble and save assembly expenses fast, and by material behavior many special efficacies of deriving; In addition, casing is provided with earth connection to be connected in earth electrode, in order to get rid of static.

Do detailed explanation below only by specific embodiment, and with reference to accompanying drawing, make the reader to have and further to understand and understanding for every function of the present invention, characteristics.

Description of drawings

Fig. 1 is the three-dimensional exploded view of display of the present invention.

Fig. 2 is seen the three-dimensional exploded view of looking for display of the present invention by the dorsal part visual angle.

Fig. 3 is the profile of display of the present invention.

Fig. 4 is the profile of second embodiment of the invention.

Fig. 5 is the profile of third embodiment of the invention.

Fig. 6 is the three-dimensional exploded view of fourth embodiment of the invention.

Fig. 7 is the profile of fifth embodiment of the invention.

Fig. 8 is the organigram of existing plastic housing display.

Number in the figure is described as follows:

10 ... casing 11 ... preceding frame

12 ... bonnet 13 ... earth connection

14 ... earth electrode 15 ... fixedly hook

16 ... hang bar 17 ... hang the hanging part

20 ... set member in the display

21 ... liquid crystal panel 22 ... circuit board

23 ... location-plate 24 ... fixed head

30,40,50 ... spiro connection structure

31,32 ... screwed hole seat 33,34 ... the hole

35,36 ... spiral shell spare 41,42 ... the hole

43 ... connector 44 ... spiral shell spare

45 ... screw 50 ... compacting structure

51 ... screw seat 52 ... the hole

53 ... connector 54 ... spiral shell spare

55 ... external screw thread 57 ... screw

60 ... compacting structure 61 ... the screwed hole seat

62 ... spacer 63 ... the hole

64 ... spiral shell spare 91 ... preceding frame

92 ... bonnet 93 ... liquid crystal panel

94 ... metal fixed head 95 ... circuit board

96 ... the electromagnetic wave proof net

Embodiment

Shown in Fig. 1～3, the present invention is applied to LCD, and this LCD is textural to be included: the casing of being made up of preceding frame 11 and bonnet 12 10; But have liquid crystal panel (LCD) 21 of display frame and the interior set member 20 of display of circuit board 22; It is that mainly casing 10 is that material die casting is made with magnesium alloy or aluminium alloy, can be directly and display in set member 20 assemblings, so can save existing plastic housing display for the incidental metal fixing of mounting structure, and reach quick assembling and reduce the effect of assembly expenses, and by the material behavior of magnesium alloy or aluminium alloy many special efficacies of deriving, in addition, casing 10 is provided with earth connection 13 to be connected in earth electrode 14, in order to get rid of static.Hereinafter will describe in detail.

Casing 10 is made up of preceding frame 11 and bonnet 12, and it is a material with magnesium alloy or aluminium alloy, makes via the die-casting process mode, and book office is provided with several spiro connection structures 30; This spiro connection structure 30 is provided with screwed

hole seat

31,32 for the preceding frame 11 of casing 10 and bonnet 12.

Set member 20 comprises in the display: liquid crystal panel 21, be positioned at casing 10, and side is provided with location-plate 23 with respect to spiro connection structure 30 places, and location-plate 23 is provided with hole 33, is fixed on the preceding frame 11 of casing 10 to cooperate spiral shell spare 35; And circuit board 22, being positioned at casing 10, side is provided with hole 34 with respect to screwed hole seat 32 places, is fixed on the bonnet 12 of casing 10 to cooperate spiral shell spare 36.

Because casing 10 is that material die casting is made with magnesium alloy or aluminium alloy, so can be good, crashworthiness is non-friable and material behavior such as heat-resisting by its intensity, interior set member 20 assemblings of direct and display, have the plastic housing display now for the incidental metal fixing of mounting structure to save, and reach the effect of quick assembling and minimizing assembly expenses.

And because casing 10 has conductivity, and can establish an earth connection 13, in order to get rid of static to be connected in earth electrode 14.

Second embodiment as shown in Figure 4, this spiro connection structure 40 is: the book office of casing 10 is provided with hole 41, the opposite position of set member 20 is provided with hole 42 in the lcd tv display, 41,42 in this two hole is provided with two ends and establishes the connector 43 with screw 45, spiral shell is located at connector 43 to cooperate two spiral shell spares 44 to pass

hole

41,42 respectively, so that set member 20 in the display is fixed on the casing 10.

The 3rd embodiment as shown in Figure 5, this spiro connection structure 50 is: casing 10 is provided with screw seat 51 in book office, the opposite position of set member 20 is provided with hole 52 in the display, 52 in this screw seat 51 and hole are provided with an end and have external screw thread 55, the other end is provided with the connector 53 of screw 57, the external screw thread 55 of this connector 53 is that spiral shell is located at screw seat 51, and spiral shell is located at connector 53 so that set member 20 in the display is fixed on the casing 10 to cooperate spiral shell spare 54 to pass hole 52.

The 4th embodiment as shown in Figure 6, in order to cooperate assembling and the distribution under the different situations, this circuit board 22 has a fixed head 24; This fixed head 24 is roughly parallel with liquid crystal panel 21, and its lower edge protrudes from liquid crystal panel 21 downwards and is fixed on the preceding frame 11; According to this structure, before set member 20 in the display can being arranged on the frame and reach the effect of ease of assembly and distribution.

In addition, because casing 10 is with aluminium alloy or magnesium alloy pressure-casting moulding, its strength of materials is good, so can on bonnet 12, establish at least one fixedly hook 15, and (for example: wall) establish one and hang bar 16 in the predetermined place of hanging, have extension hanging part 17 on this extension bar 16, hang on the extension hanging part 17 of bar 16 with fixing hook 15 during use, display is hung on the predetermined place that hangs with respect to fixedly hook 15.

The 5th embodiment as shown in Figure 7, for location and the assembling of simplifying liquid crystal panel 21, the periphery of liquid crystal panel 21 is provided with several compacting structures 60; This compacting structure 60 comprises: a screwed hole seat 61, the book office of frame 11 before being located at; And a spacer 62, it is resisted against liquid crystal panel 21, and it is provided with a hole 63 with respect to screwed hole seat 61 places; And a spiral shell spare 64, it passes hole 63 and spiral shell is located at screwed hole seat 61, in order to liquid crystal panel 21 forward frame 11 packings fix.

Above-mentioned spiro connection structure is used for directly set member in the display being fixed in casing, to simplify the assembling of display.

The casing of display of the present invention adopts magnesium alloy or aluminum alloy materials to make, and has following advantage at least:

1. in price: magnesium elements and aluminium element earth content very abundant hold concurrently recyclable, so price steadiness.

2. aspect physical characteristic: magnesium alloy and aluminium alloy tool conductivity, casing is ground connection directly, getting rid of static, but and anti electromagnetic wave interference, rapid heat dissipation, system shake, anti-falling, amount of deflection and tensile strength height, corrosion resistant performance be good, have water proofing property, applicable to open air and public arena.

3. aspect intensity: magnesium alloy and aluminium alloy light weight, intensity is good, and crashworthiness is non-friable, and processing and forming is easy, and texture is good, and rigidity is that present structure is used soprano in the metal, is the light-weighted optimal material of 3C Product.

4. aspect fusing point: about 600 ℃ of magnesium alloy and aluminium alloy fusing point, can be heat-resisting and indeformable, and heat conductivity is good, and heat radiation is easily.

5. aspect heat radiation: magnesium alloy and aluminium alloy rapid heat dissipation have the electric circumstance of stable casing inside and the function of temperature conditions.

32″TV →200W

42″/37″→300W

PC→300W?—400W

Magnesium alloy or aluminum alloy casing can adopt no ventilation hole design at the PC+TV of 500W-600W.

6. aspect rigidity: die casting is different from the calendering plate, can subsidize and carry out structural strengthening, and rigidity is splendid, can appropriateness use pad, to reach the purpose of waterproof.

7. aspect the environmental protection recovery: magnesium alloy and aluminium alloy meet the environmental protection recovery and utilize, and the nontoxic production of tool, nontoxic use, and can increase the product life cycle, and reduce energy resource consumption, thus very economical, be the excellent material of green engineering.

8. aspect international organization's requirement: European Union will come into effect harmful substance ban (RoHS) July 1 2006 this year; promptly sell European Union's 25 state member state market forbidding harmful substances; as lead, cadmium, mercury, Cr VI, Polybrominated biphenyl, PBDEs and (WEEE) environmental protection recycling instruction, magnesium alloy and aluminium alloy all can meet above-mentioned requirements.

9. aspect assembling: precedingly address, in this repeated description no longer.

10. aspect outward appearance: magnesium alloy and aluminium alloy compression casting shell, thickness be less than 3mm, tool slimming, lightweight, can hang modern design, style fashion can provide complex model, makes display attractive in appearance, is easy to carry, toyization, personalized and tool metal-like more can promote the product surcharge.

11. aspect cost: produce shell with magnesium alloy and aluminium alloy, the all recyclings of its defective products, can save Master Cost, and the recycling expense is all collected to the import of plastics series products in the whole world at present, so in comparison, the magnesium alloy price display unit comes cheaply than plastic casing display.

Comprehensive the above, casing of the present invention can be directly assembles with the interior set member of display such as liquid crystal panel, circuit board, can assemble and save assembly expenses fast, and by magnesium alloy or aluminum alloy materials characteristic many effects of deriving.

More than for the present invention for embodiment, only establish for ease of explanation, can not limit content of the present invention with this, those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims institute restricted portion equally.

Claims

1. casing that displays such as the LCD TV with magnesium alloy or aluminium alloy compression casting, plasm TV and desktop display are used, comprising:

A frame and a bonnet before one, in order to set member in the fixing aforementioned display device, the interior set member of this display comprises: liquid crystal panel and circuit board;

It is characterized in that:

Casing is a material with magnesium alloy or aluminium alloy, make via the die-casting process mode, book office is provided with several spiro connection structures, by set member assembling in direct and the display, can assemble and save assembly expenses fast, and by its material behavior the multiple efficacies of deriving, in addition, casing is provided with earth connection to be connected in earth electrode, in order to get rid of static

The side of this liquid crystal panel is provided with location-plate with respect to the spiro connection structure place, and this location-plate is provided with the hole.

2. the casing that displays such as the LCD TV with magnesium alloy or aluminium alloy compression casting as claimed in claim 1, plasm TV and desktop display are used is characterized in that:

This spiro connection structure is: casing is provided with the screwed hole seat, and the opposite position of set member is provided with the hole in the display, to cooperate spiral shell spare set member in the display is fixed on the casing.

3. the casing that displays such as the LCD TV with magnesium alloy or aluminium alloy compression casting as claimed in claim 1, plasm TV and desktop display are used is characterized in that:

This spiro connection structure is: the casing book office is provided with the hole, and the opposite position of set member is provided with the hole in the display, is provided with the connector that two ends have screw between this two hole, to cooperate two spiral shell spares set member in the display is fixed on the casing.

4. the casing that displays such as the LCD TV with magnesium alloy or aluminium alloy compression casting as claimed in claim 1, plasm TV and desktop display are used is characterized in that:

This spiro connection structure is: the casing book office is provided with the screw seat, the opposite position of set member is provided with the hole in the display, be provided with an end between this screw seat and the hole and have external screw thread, the other end has the connector of screw, and the external screw thread spiral shell of this connector is located at the screw seat and to cooperate spiral shell spare set member in the display is fixed on the casing.

5. the casing that displays such as the LCD TV with magnesium alloy or aluminium alloy compression casting as claimed in claim 1, plasm TV and desktop display are used is characterized in that:

This circuit board is located on the bonnet.

6. the casing that displays such as the LCD TV with magnesium alloy or aluminium alloy compression casting as claimed in claim 1, plasm TV and desktop display are used is characterized in that:

This circuit board has a fixed head, and this fixed head is roughly parallel with liquid crystal panel, and its lower edge protrudes from liquid crystal panel downwards and is fixed in preceding frame.

7. the casing that displays such as the LCD TV with magnesium alloy or aluminium alloy compression casting as claimed in claim 1, plasm TV and desktop display are used is characterized in that:

The periphery of this liquid crystal panel is provided with several compacting structures; This compacting structure comprises: a screwed hole seat, the book office of frame before being located at; And a spacer, it peaks at liquid crystal panel, and it is provided with a hole with respect to screwed hole seat place; And a spiral shell spare, it passes the hole and spiral shell is located at the screwed hole seat, in order to liquid crystal panel forward the frame packing fix.

8. the casing that displays such as the LCD TV with magnesium alloy or aluminium alloy compression casting as claimed in claim 1, plasm TV and desktop display are used is characterized in that:

Be covered with at least one fixedly hook behind this casing, and be provided with one in the predetermined place of hanging and hang bar, have extension hanging part on this extension bar with respect to fixedly hook, this fixedly hook hang on the extension hanging part of bar.