CN1163537A - Video frequency displayer with holding speaker mechanism - Google Patents
Video frequency displayer with holding speaker mechanism Download PDFInfo
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- CN1163537A CN1163537A CN 97103858 CN97103858A CN1163537A CN 1163537 A CN1163537 A CN 1163537A CN 97103858 CN97103858 CN 97103858 CN 97103858 A CN97103858 A CN 97103858A CN 1163537 A CN1163537 A CN 1163537A
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- loudspeaker
- procapsid
- flexure strip
- video display
- display devices
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Abstract
Disclosed is a video display device, including a damping pad which is made of elastomer and connected on the backside of a loudspeaker so as to cushion the vibration transmitted from the loudspeaker. The display device also includes a capsule which is arranged at the backside of the loudspeaker in order to improve the bass property.
Description
Present invention relates in general to a kind of video display devices with loudspeaker, as television receiver, computer monitor etc., more particularly, relate to video display devices with the mechanism that clamps loudspeaker, this mechanism can prevent the transfer of vibration of loudspeaker generation to cathode ray tube, and can improve the bass characteristic of loudspeaker.
The loudspeaker that are used for video display devices produce audio frequency vibration by a vibrating membrane usually, and this vibrating membrane is driven by a vibrator coil.A magnet is fixed on the horn frame, and by its supporting, like this, this piece magnet also can produce amplitude and frequency is very important, vibration to a certain degree.Above-mentioned vibration is delivered to a shell that is supporting cathode ray tube by horn frame, again on this shell is delivered to a porous color selection electrode or radome the cathode ray tube.In addition, well-known, the audio frequency vibration that loudspeaker produced also passes to cathode ray tube by air dielectric.Therefore, radome also can vibrate, thereby causes that video disturbs.In more detail, because the vibration of above-mentioned radome, when electron beam each hole by radome projects on the fluorescent screen, can interfere between each electron beam that emits from electron gun and interact.
Loudspeaker are installed in the front of shell, have only used a pair of flat damping sheet to prevent that loudspeaker from contacting other members, as cathode ray tube, printed circuit etc.In this structure, when vibrating membrane vibration, when producing sound wave, the phase place of the sound wave that produces at the front and back of vibrating membrane is opposite mutually, thereby sound wave is cancelled out each other, and it can not fully be blazed abroad, particularly in low-frequency band.
A kind of exemplary of this structure is shown among Fig. 8.The video display devices of the prior art among Fig. 8 comprises a procapsid 302, and it has several boss with threaded hole 304, is used for a cathode ray tube 300 is installed on its inner surface 322.In addition, above-mentioned procapsid also has several boss with threaded hole 312, is used for loudspeaker are installed in 322 places of procapsid.Pass with screw 306 flange 308 of cathode ray tube both sides is fastened on the boss 304 of fore shell 302.Loudspeaker then are connected on the boss 312 with screw, lean against on the rectangular fin 324 that the inner surface 322 with procapsid 302 fuses.
Above-mentioned prior art constructions is when loudspeaker are worked, and sound wave passed the grid 310 that is arranged on the procapsid 302 and propagates forward.At this moment, the magnet of loudspeaker and vibrating membrane are all in vibration.
The vibration that is produced by loudspeaker 320 propagates on the cathode ray tube 300 by procapsid 302, and this is because cathode ray tube and loudspeaker all are installed on the procapsid.Then, vibration is passed to again on the radome that is fixed on cathode ray tube 300 appropriate positions.The hole of passing on the radome 314 from electron gun electrons emitted bundle is incident upon on the fluorescent screen.At this moment, when radome 314 vibrations, electron beam just has been subjected to interference when the hole that is vibrated by quilt.As everyone knows, this interference phenomenon has reduced the quality of the video image on the video display devices screen.
In addition, the back of two damping template loudspeaker 320 opens wide, so as mentioned above, sound wave will be propagated to the front and back of loudspeaker.Because the sound wave of Chuan Boing is opposite with the phase place of the sound wave of propagating backward forward, thus forward and the sound wave of propagating backward do not overlap.Particularly, with regard to this horn system, the sound wave of low-frequency band can not fully be propagated.
In order to address the above problem, a main purpose of the present invention provides a kind of video display devices with a loudspeaker fixture, and this clamping machine machine can prevent the transfer of vibration of loudspeaker to cathode ray tube, and can improve the bass characteristic.
Another object of the present invention provides a kind of video display devices with a flexure strip, and this flexure strip is clipped between procapsid and the loudspeaker, to cut off the vibration of transmitting to cathode ray tube from loudspeaker.
Another purpose of the present invention provides a kind of video display devices with a capsule, and this capsule is arranged on the rear side of loudspeaker, to improve the bass characteristic.
To achieve these goals, provide a kind of video display devices, it comprises: a cathode ray tube; One procapsid, above-mentioned cathode ray tube is installed on it; One loudspeaker, it is fixed on the sidewall of procapsid; With a flexure strip, it is connected the back side of loudspeaker, is delivered to the vibration of cathode ray tube from loudspeaker with buffering.
The sidewall of procapsid comprises at least four ribs, and a loudspeaker fixture that is arranged between the second and the 3rd ribs.Usually, in order to reduce restriction, on the sidewall of procapsid, a hollow cylindrical shape waveguide is arranged between third and fourth ribs to bass.
According to characteristics of the present invention, above-mentioned loudspeaker fixture comprises that a rectangle leads rib, and it is around flexure strip and loudspeaker; With the plurality of elastic arm, they to upper process, and have pressing section at its free end respectively from the horizontal side of leading rib.This loudspeaker fixture can be with the convenient loudspeaker that promptly clamp of shirtsleeve operation.As a kind of substitute mode, also the hook that extends upwardly and curve the right angle from opposite side can be set.
Flexure strip comprise one therein the heart be shaped on the rectangular pad of a perforate; The folded part that extends out from the edge of this flexure strip; And the line of rabbet joint that between edge and folded part, forms.
According to another characteristics of the present invention, this video display devices also comprises a back casing, and it is connected with procapsid, and a capsule that surrounds the loudspeaker fixture is arranged.This capsule covers loudspeaker, is lower than lowest resonance frequency thereby the limit of low-frequency band is reduced to, and this frequency is subjected to the influence of air capacitive reactance.In order to strengthen the sealing of capsule, the open side that is preferably in capsule is provided with a flexure strip.
Below, describing the preferred embodiments of the present invention with reference to the accompanying drawings, above-mentioned purpose of the present invention and otherwise advantage have just come into plain view.In the accompanying drawing:
Fig. 1 is the exploded perspective view of the video display devices of one embodiment of the invention;
Fig. 2 is the rearview that is provided with the procapsid of damping pad of the present invention;
Fig. 3 is the partial sectional view of procapsid, shows the installment state of loudspeaker in detail;
Fig. 3 A is the detail drawing of the circle 3A among Fig. 3;
Fig. 4 is the partial sectional view of procapsid, represents a waveguide that extends between procapsid and the back casing;
Fig. 4 A is the detail drawing of the circle 4A among Fig. 4;
Fig. 5 is the stereogram of loudspeaker fixture of the present invention;
Fig. 6 is the cutaway view of Fig. 5, represents that loudspeaker and damping pad are installed on the loudspeaker fixture;
Fig. 7 is the view that is similar to Fig. 6, represents that loudspeaker and damping pad are installed on the another kind of loudspeaker fixture;
Fig. 8 is the view that the loudspeaker of video display devices are in clip position in the prior art.
Now referring to Fig. 1, expression one video display devices of the present invention among the figure, it comprises a procapsid 10 and a back casing 50, procapsid 10 and back casing 50 are made by any one thermoplastic, procapsid 10 has 32, one cathode ray tubes of not representing in the accompanying drawings (hereinafter referred to as CRT) of an opening in the middle and just is installed in this opening.Generally include the analog switch 34 of some control CRT and a pair of loudspeaker 80 on the fore shell 10.
One damping pad 82 is arranged between the loudspeaker clamping part 12 and loudspeaker 80 of procapsid 10.The shape of this damping pad 82 installation portion with loudspeaker 80 substantially is identical, and is fixed on the back side of procapsid 10 with a screw 86, and the damping pad is attached on the loudspeaker.
Fig. 2 represents to be provided with the back side according to the procapsid of damping pad of the present invention.Some ribs 24,26,28 and 30 are arranged, to increase its intensity on the left side wall of procapsid and the right side wall.The second and the 3rd ribs 26 and 28 size can make loudspeaker 80 be installed on these ribs.In addition, the size of the first and the 4th ribs can be aimed at the capsule 56 of back casing 50, and this will illustrate below.Should determine the height of ribs 24 and 30 according to the thickness that is arranged on the sealing gasket 52 between the first and the 4th ribs 24,30 and the capsule 56.The auxiliary sidewall that the longitudinal side wall of capsule 56 is nested with on it is arranged between ribs 24 and 30, but for clarity sake, it is not showed in the accompanying drawings.A hollow cylindrical shape waveguide 15 is respectively arranged on left side wall and the right side wall, be stretched on backward between third and fourth ribs 28 and 30.The open at both ends of this waveguide 15, so that by procapsid 10 inside of capsule 56 is in communication with the outside, the end in the two ends is by label 14 indications.Procapsid 10 has some boss 18, and a screw 20 is arranged on each boss, so that with screw 57 back casing is installed on the edge of four edges at least of its back.
Referring to Fig. 1, back casing 50 comprises the cube that an at least one side is opened wide again.Procapsid 10 is installed in this open side by screw 57.More particularly, procapsid 10 is holes of wearing screw 58 of passing back casing 50 both sides with screw 57, is fastened in the hole 20 of boss 18, and is installed on the back casing 50.The capsule 56 that is arranged on the both sides, inside of back casing 50 is made cube, connects the first and the 4th ribs 34 and 30 of procapsid 10.Capsule 56 surrounds the loudspeaker that are arranged on fore shell 10 bodies.
As shown in Figure 1, each capsule 56 all opens wide, to connect procapsid 10.Utilize a kind of glue that sealing gasket 52 is attached on each open side of capsule.When procapsid 10 and back casing 50 connected together, the sealing gasket of this back casing 50 prevented that sound wave from leaking out from capsule.
The state of connecting of above-mentioned procapsid 10 and back casing 50 is shown in Fig. 3 and 4, wherein, Fig. 3 represents to be arranged on the state of the damping pad 82 between procapsid 10 and the loudspeaker 80, and Fig. 4 represents that cylindrical shape waveguide 15 extends to the state of capsule 56 inside of back casing 50 from the bottom of loudspeaker 80.
Referring to Fig. 3 and 3A, loudspeaker 80 are installed on the loudspeaker clamping part 12 of procapsid 10 by the securing member of screw 86 and so on, and damping pad 82 is arranged between clamping part 12 and the loudspeaker 80.Another kind of loudspeaker 80 are installed in device on the procapsid 10 know clearly and be shown among Fig. 5-7.
Referring to Fig. 4 and 4A, be arranged between third and fourth ribs 28 and 30 and be positioned at the inside that hollow cylinder corrugated waveguide 15 below the loudspeaker puts in the capsule 56 of back cover 50.Because the air in the capsule 56 has the influence of capacitive reactance, the effect of this capsule 56 is that the limit of low-frequency band is reduced to loudspeaker from below the minimum resonant frequencies in free space.In addition, those of ordinary skill in the art knows that as under the occasion of echo system, the limit of low-frequency band will be reduced at waveguide 15
The length of waveguide is determined according to the volume of capsule.
Therefore, although the present invention is simple in structure, this video display devices is applicable to the bass reflex horn system.More particularly, sound wave is directly outwards propagated from the positive of loudspeaker, and the sound wave at the back side is then propagated to capsule 56 directions.The phase place of importing the sound wave in the capsule into is come by the resonance anti-pass of air particles, so just the sound wave phase place with the loudspeaker front is identical for its phase place.Utilize this phenomenon, just strengthened the sound wave of low-frequency band, thereby reduced restriction low-frequency band.
Fig. 5-the 7th is according to the view of the specific embodiment of a kind of damping pad of the present invention.
Fig. 5 represents a loudspeaker fixture and the damping pad 182 on the procapsid.This loudspeaker fixture is arranged between second ribs 26 and the 3rd ribs 28.This fixture comprises one around the rectangle guiding rib 198 around the loudspeaker 180 and some from the make progress elastic arm 194 of projection of this guiding rib.Little the giving prominence to a bit of the shape backward directions arm of leading rib 198 that has elastic arm 194 is so that pack loudspeaker into.When loudspeaker 180 and damping pad 182 installed, elastic arm 194 can be crooked, produces strain, and elastic arm has a compressed part 196 of loudspeaker being pressed on the damping pad at its free end.
Damping pad shown in Fig. 5 can be a flexure strip, comprises a mider hole 190, is the fan-shaped line of rabbet joint 192 in top side and bottom side, and some rectangle lines of rabbet joint 188 on left side and right side.And damping pad 182 also has two pairs of folding parts 184 and 186, and these two pairs of folding parts respectively prolong certain-length from four sides.But the line of rabbet joint 188 and 192 is not limited to this shape, and the size of the line of rabbet joint preferably really equals to contact the area of damping pad of the lower surface of loudspeaker for the area of folding part of the upper surface that can make contact loudspeaker 180.Its reason is, make above the loudspeaker equally substantially each other with following coefficient of elasticity, like this, the vibration of loudspeaker cancelled out each other fully.
Fig. 6 is the sectional view of Fig. 5, and expression is installed in state on the loudspeaker fixture to loudspeaker and damping pad.Damping pad 182 is bonded on the loudspeaker 180 by a kind of binding agent, but does not give expression in Fig. 6.The boning loudspeaker 180 of damping pad of the back side can be pressed in the loudspeaker fixture of procapsid 10 with shirtsleeve operation.When mounted, earlier elastic arm 194 is pulled backward, when damping pad 182 is attached at the clamping part 12 of procapsid, allowed elastic arm return to its initial position again.The compressed part 196 of elastic arm 194 is just pressed to the folding part 186 above the loudspeaker.
As shown in figs. 1 and 3, the loudspeaker 80 of damping pad being housed should be by being installed in the method for screw-driving in hole 16 on the clamping part 12.According to this specific embodiment, because loudspeaker have been clamped by four clamping parts, the loudspeaker fixture among the figure just no longer needs other operation to fix loudspeaker.
Fig. 7 represents loudspeaker fixture, this specific embodiment hook 294 that curves the right angle of another embodiment of the present invention, rather than with a pair of elastic arm in the elastic arm shown in Fig. 5 and Fig. 6.Different with elastic arm 194, hook 294 is not move, thereby has made things convenient for the operation of installation and removal loudspeaker.
Although describe the preferred embodiments of the present invention above with reference to the accompanying drawings,, will be understood by those skilled in the art that, under the prerequisite that does not depart from spirit of the present invention, can make various modifications in form and details.
Claims (10)
1. video display devices, it comprises: a cathode ray tube; One procapsid, above-mentioned cathode ray tube is mounted thereto; One loudspeaker, it is fixed on the sidewall of procapsid; With a flexure strip, it is connected the back side of loudspeaker, is delivered to the vibration of cathode ray tube from loudspeaker with buffering.
2. video display devices as claimed in claim 1 is characterized in that the sidewall of procapsid comprises at least four ribs, and a loudspeaker fixture and a hollow cylindrical shape waveguide that is arranged between the second and the 3rd ribs.
3. video display devices as claimed in claim 2 is characterized in that, above-mentioned loudspeaker fixture comprises that a rectangle around flexure strip and loudspeaker leads rib; With the plurality of elastic arm, these elastic arms to upper process, and have pressing section at its free end respectively from the horizontal side of leading rib.
4. video display devices as claimed in claim 2 is characterized in that, above-mentioned loudspeaker fixture comprises that a rectangle around flexure strip and loudspeaker leads rib; With the plurality of elastic arm, these elastic arms to upper process, and have pressing section at its free end respectively from the horizontal side of leading rib; And one the hook, this hook extends upwardly and bends to the right angle from opposite side.
5. video display devices as claimed in claim 1 is characterized in that, above-mentioned flexure strip comprises that one is shaped on a perforate in the middle, from the folding portion that these flexure strip four sides extend out and the line of rabbet joint that forms between side and folding portion.
6. video display devices as claimed in claim 1 is characterized in that, the line of rabbet joint is sized to make the area of the folding portion that is contacting the loudspeaker upper surface to equal to contact the area of the flexure strip of loudspeaker lower surface.
7. video display devices as claimed in claim 1 is characterized in that it also comprises a back casing, and this back casing can be connected with procapsid, and comprises that one is arranged on the capsule of its side, and this capsule has an opening in its side.
8. video display devices as claimed in claim 7 is characterized in that above-mentioned capsule is provided with a flexure strip, and this flexure strip covers above-mentioned opening, seals up this capsule.
9. video display devices, it comprises:
One cathode ray tube;
One procapsid, above-mentioned cathode ray tube is installed on this procapsid, and this procapsid has a loudspeaker fixture;
One back casing, this back casing is connected with procapsid, and comprises that one is arranged on the capsule on its side, and this capsule is shaped on an opening in its side;
One loudspeaker are clamped by the loudspeaker fixture, and are provided with a flexure strip at its back side;
It is characterized in that above-mentioned loudspeaker fixture comprises that a rectangle around flexure strip and loudspeaker leads rib; With the plurality of elastic arm, these elastic arms to upper process, and have pressing section at its free end respectively from the horizontal side of leading rib.
10. video display devices as claimed in claim 9 is characterized in that above-mentioned capsule is provided with a flexure strip, and this flexure strip covers above-mentioned opening, seals up this capsule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97103858 CN1163537A (en) | 1996-04-09 | 1997-04-01 | Video frequency displayer with holding speaker mechanism |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10601/P96 | 1996-04-09 | ||
| KR18704/P96 | 1996-05-30 | ||
| CN 97103858 CN1163537A (en) | 1996-04-09 | 1997-04-01 | Video frequency displayer with holding speaker mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1163537A true CN1163537A (en) | 1997-10-29 |
Family
ID=5166932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97103858 Pending CN1163537A (en) | 1996-04-09 | 1997-04-01 | Video frequency displayer with holding speaker mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1163537A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440954C (en) * | 2001-12-19 | 2008-12-03 | 汤姆森特许公司 | Electronic device including loudspeaker |
| US8180074B2 (en) | 2007-01-02 | 2012-05-15 | Lg Electronics Inc. | Display device and speaker system for the display device |
| CN104871555A (en) * | 2012-12-28 | 2015-08-26 | 索尼公司 | Image generation for collaborative sound systems |
| CN107896444A (en) * | 2017-12-19 | 2018-04-10 | 惠科股份有限公司 | Display device and shell structure thereof |
| CN107920434A (en) * | 2017-12-19 | 2018-04-17 | 惠科股份有限公司 | Display device and shell structure thereof |
| CN107920433A (en) * | 2017-12-19 | 2018-04-17 | 惠科股份有限公司 | Display device and shell structure thereof |
| CN107920435A (en) * | 2017-12-19 | 2018-04-17 | 惠科股份有限公司 | Display device and shell structure thereof |
-
1997
- 1997-04-01 CN CN 97103858 patent/CN1163537A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440954C (en) * | 2001-12-19 | 2008-12-03 | 汤姆森特许公司 | Electronic device including loudspeaker |
| US8180074B2 (en) | 2007-01-02 | 2012-05-15 | Lg Electronics Inc. | Display device and speaker system for the display device |
| CN104871555A (en) * | 2012-12-28 | 2015-08-26 | 索尼公司 | Image generation for collaborative sound systems |
| CN104871555B (en) * | 2012-12-28 | 2018-11-09 | 索尼公司 | Display device |
| US10136203B2 (en) | 2012-12-28 | 2018-11-20 | Saturn Licensing Llc | Display device |
| CN107896444A (en) * | 2017-12-19 | 2018-04-10 | 惠科股份有限公司 | Display device and shell structure thereof |
| CN107920434A (en) * | 2017-12-19 | 2018-04-17 | 惠科股份有限公司 | Display device and shell structure thereof |
| CN107920433A (en) * | 2017-12-19 | 2018-04-17 | 惠科股份有限公司 | Display device and shell structure thereof |
| CN107920435A (en) * | 2017-12-19 | 2018-04-17 | 惠科股份有限公司 | Display device and shell structure thereof |
| CN107896444B (en) * | 2017-12-19 | 2024-03-19 | 惠科股份有限公司 | Display device and shell structure thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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