CN104238246A - Projector - Google Patents
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- CN104238246A CN104238246A CN201410352825.XA CN201410352825A CN104238246A CN 104238246 A CN104238246 A CN 104238246A CN 201410352825 A CN201410352825 A CN 201410352825A CN 104238246 A CN104238246 A CN 104238246A
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- Prior art keywords
- projector
- fan
- housing
- lamp plate
- heat dissipation
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Abstract
The invention provides a projector. The projector comprises a shell, a fan, a light-up plate, a heat conduction structure, a light source, a power source unit and an optical machine, wherein the position, corresponding to the light-up plate, of the shell is provided with a first air inlet, the light-up plate is covered with the heat conduction structure, the light source is located outside the heat conduction structure, the heat conduction structure is provided with a first end and a second end, the first end corresponds to the first air inlet, and the second end corresponds to the fan. Air flow is led to the fan through the heat conduction structure, an independent air flue is formed in the light-up plate, heat generated by components in work is discharged in time so that the working temperature of the components can be lowered, and therefore the temperature point of an over temperature protection shutdown can be increased, and the requirement of the projector for the temperature of a working environment can be lower.
Description
Technical field
The present invention relates to a kind of projector, particularly relate to a kind of projector with active heat removal system.
Background technology
Projector be a kind of can by image or VIDEO PROJECTION to the equipment on screen, can by different interfaces same computing machine, VCD, DVD, BD, game machine, DV etc. be connected play corresponding vision signal, reach the Projection Display mode of giant-screen to presenting and visual effect of providing spectator splendid.Along with the development of electronic technology, projector is widely used in education, business and family.Conventional projector generally comprises a housing and is arranged on photo engine, circuit board, some lamp plate, light source, power supply unit and the corresponding cooling mechanism in housing.Cathode ray tube projection instrument (CRT) can be divided into, liquid crystal projection apparatus (LCD) and digital optical processor projector (DLP) according to the difference of projector principle of work.According to the number of camera lens used in photo engine, projector can be divided into again single-lens projector and three-lens projector.
Projector point lamp plate Main Function is for a bright light source and provide stable voltage to light source, and the element of some lamp plate operationally its upper setting can produce heat, if these heats discharge in time can not can affect the components and parts life-span and even burn.For avoiding this kind of situation, thermistor (NTC) being set on a lamp plate usually, when NTC reaches uniform temperature, projector excess temperature shutdown defencive function can being triggered.But limit the environment temperature of projector work to a certain extent and affect user and normally use.
Usually adopt for a lamp plate heat radiation at present and utilize fan cooling or increase fan initiatively discharge.Wherein, the heat that fan is mainly used in light source, ray machine produce discharges projector.But because a lamp plate and light source, ray machine etc. are all arranged in housing, the heat that therefore light source ray machine produces also can produce larger impact to a lamp plate, makes the heat radiation of a lamp plate be subject to larger restriction; Moreover, have miscellaneous part to intercept between some lamp plate and fan, obstruct is brought to radiating airflow passage, makes the radiating effect of fan to a lamp plate poor, and it is effectively distinguished and admirable to be difficult to formation; In addition, also along with increase, Consumer's Experience can be affected and adds cost if increase fan active heat removal noise.
Therefore, be necessary to design a kind of new projector, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of projector, its lamp plate has good radiating effect.
For achieving the above object, the invention provides a kind of projector, comprising,
Housing;
Fan, is arranged in this housing;
Point lamp plate, is arranged in this housing, and the position that this housing corresponds to this lamp plate is provided with the first air inlet;
Conductive structure, is covered on this lamp plate, and this conductive structure has first end and the second end, and wherein this first end is to should the first air inlet, and this second end, to should fan, forms the first heat dissipation channel in this conductive structure;
Light source, to be arranged in this housing and to be positioned at outside this conductive structure;
External air flow can enter this fan via this first air inlet, this lamp plate, this first heat dissipation channel, and discharge this housing by this fan successively.
Preferably, the second end of this conductive structure contacts with this fan or both spacing are less than predetermined value.
Preferably, this projector also comprises the second heat dissipation channel, and this second heat dissipation channel is positioned at outside this first heat dissipation channel, and extraneous air-flow can enter this fan via this second heat dissipation channel, to dispel the heat to this light source.
Preferably, this housing is also provided with the second air inlet, and external air flow can enter this second heat dissipation channel via this second air inlet.
Preferably, this projector also comprises power supply unit, and this power supply unit is positioned at outside this conductive structure.
Preferably, this conductive structure comprises wind scooper and guide duct, this wind scooper is connected with guide duct and is connected, and this guide duct contacts with this fan or between the two apart from being less than predetermined value, and this wind scooper covers this lamp plate and to contact with this air inlet or between the two apart from being less than predetermined value.
Preferably, this wind scooper and guide duct are made up of metal material or heat-barrier material.
Preferably, this wind scooper and guide duct as a whole.
Preferably, this housing is provided with air outlet, and this air outlet is relative with this fan, and this external air flow flowing through this fan can be discharged outside this housing via this air outlet.
Compared with prior art, the present invention is by increasing conductive structure, conductive structure is covered on a lamp plate, this conductive structure has first end and the second end, wherein this first end contacts with this first air inlet or vicinity, and this second end this fan contiguous, is formed with the first heat dissipation channel in this conductive structure, external air flow is made to enter this fan via this first air inlet, this lamp plate, this first heat dissipation channel, and to discharge this housing by this fan successively.Namely, by implementing the present invention, a lamp plate is made to have independently heat dissipation channel, so that other heater elements of projector and some lamp plate are kept apart, avoid impacting a lamp plate, and the heat that components and parts work on a lamp plate produces is discharged by independent heat dissipation channel in time, to reduce the working temperature of components and parts, thus draw high the temperature spot of excess temperature shutdown.Make projector more light to operating ambient temperature requirement, the problems such as noise increase and cost increase can not be caused simultaneously.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of projector proposed by the invention.
Fig. 2 is the structural representation of the projector after the assembling parts shown in Fig. 1.
Fig. 3 is the distinguished and admirable schematic diagram of projector proposed by the invention.
Embodiment
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.In addition, the element that the diagram breviary in embodiment is unnecessary, with clear display technical characterstic of the present invention.
Now carry out example explanation of the present invention with the first embodiment.See Fig. 1, it is the decomposition texture schematic diagram of projector proposed by the invention.This projector includes housing 1, fan 2, some lamp plate 3, wind scooper 4, guide duct 5, light source 6, power supply unit 7, ray machine 8 and camera lens 9.Wherein, this fan 2, some lamp plate 3, wind scooper 4, guide duct 5, light source 6, power supply unit 7, ray machine 8 are positioned at this housing 1.
This housing 1 has the first side 12, side 11, second, the 3rd side 13 and the 4th side 14, and wherein the first side 11 is relative with the 3rd side 13, and the second side 12 is relative with the 4th side 14, and the second side 12 is arranged between the first side 11 and the 3rd side 13.The camera lens 9 of projector stretches out in this first side 11 in this housing 1.In addition, the position that the 3rd side 13 of this housing 1 corresponds to this lamp plate 3 is also provided with the first air inlet 131, so that external air flow can enter in this housing 1 via this first air inlet 131, dispels the heat to this lamp plate 3.The position that this housing 1 corresponds to this fan 2 is provided with air outlet 111, so that the heat that this fan 2 is discharged is discharged outside housing 1 via this air outlet 111.
This wind scooper 4 is covered on this lamp plate 3, and the inner side of this wind scooper 4 and some lamp plate 3 element between have dispel the heat gap confession radiation air flow through.This wind scooper 4 has first end 41 and the second end 42, and this first end 41 is for air intake, and this second end 42 is for air-out.And, when this wind scooper 4 is covered in after on this lamp plate 3, the first end 41 of this wind scooper 4 contacts with this first air inlet 131 or distance is less than predetermined value, so that external air flow directly can enter in this wind scooper 4 via this first air inlet 131, first end 41 between the two.Wherein, the size of this predetermined value, can be determined with actual conditions or experience by deviser, not repeat them here.
This guide duct 5 is arranged in this housing 1, the tubulose in hollow or tubular, for connecting this wind scooper 4 and this fan 2.Specifically, this guide duct 5 has the 3rd end 51 and the 4th end the 52, three end 51 is connected with the second end 42 of this wind scooper 4, and the 4th end 52 corresponds to this fan 2.Specifically, the 4th end 52 contacts with this fan 2 or both spacing are less than predetermined value.The setting of predetermined value is arranged according to actual needs by those skilled in the art.
This wind scooper 4 and guide duct 5 are connected to form the first heat dissipation channel A, pass through, see Fig. 1, Fig. 2, Fig. 3 for external air flow.
Light source 6 is positioned at outside this wind scooper 4 and guide duct 5, is also namely positioned at outside the first heat dissipation channel A.Wind scooper 3, guide duct 4 are assemblied in the effect of the projector after in housing 1 as shown in Figure 2, projector external air flow enters this fan 2 via this first air inlet 131, this lamp plate 3, this first heat dissipation channel A, and discharge this housing 1 by this fan 2, to realize the independent heat radiation to this lamp plate 3.
To sum up, fit together after independently being manufactured by wind scooper 4, guide duct 5 and form conductive structure in the present embodiment, this conductive structure has first end and the second end, wherein the first end (i.e. the first end 41 of this wind scooper 4) of this conductive structure is to should the first air inlet 131, second end (i.e. the second end 52 of this guide duct 5) of this conductive structure, to should fan 2, forms this first heat dissipation channel A in this conductive structure; Projector external air flow enters this fan 2, and discharges this housing 1 by this fan 2 via this first air inlet 131, this lamp plate 3, this first heat dissipation channel A, to realize the independent heat radiation to this lamp plate 3.
In addition, in practical application, above-mentioned wind scooper 4 and guide duct 5 also can be as a whole, form conductive structure.This wind scooper 4 and guide duct 5 can be made up of metal material or heat-barrier material.
Below in conjunction with the concrete heat dissipation wind channel to a lamp plate, the present invention will be further described.
As shown in Figure 3, projector external air flow (as shown by arrows) enters this fan 2, and discharges this housing 1 by this fan 2 via this first air inlet 131, this lamp plate 3, this first heat dissipation channel A, to realize the independent heat radiation to this lamp plate 3.The expression of arrow with dotted line (walking in inside), solid line illustratively.Distinguished and admirable concentrate and stroke is shorter, can not disturb by miscellaneous part, independent ventiduct is formed to a lamp plate 3, some lamp plate 3 bring better radiating effect.
In the present embodiment, preferably, this projector also comprises the second heat dissipation channel B, and this second heat dissipation channel B is positioned at outside this first heat dissipation channel A.Corresponding to this second radiation air channel B, the 4th side 14 of this housing 1 is also provided with the second air inlet 141, and external air flow can enter after in this second heat dissipation channel B via the second air inlet 141 and enter this fan 2, to dispel the heat to this light source 6, ray machine 8 etc.
In addition, this power supply unit 7 is positioned at outside this conductive structure.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.
Claims (9)
1. a projector, is characterized in that, comprises,
Housing;
Fan, is arranged in this housing;
Point lamp plate, is arranged in this housing, and the position that this housing corresponds to this lamp plate is provided with the first air inlet;
Conductive structure, is covered on this lamp plate, and this conductive structure has first end and the second end, and wherein this first end is to should the first air inlet, and this second end, to should fan, forms the first heat dissipation channel in this conductive structure;
Light source, to be arranged in this housing and to be positioned at outside this conductive structure;
External air flow can enter this fan via this first air inlet, this lamp plate, this first heat dissipation channel, and discharge this housing by this fan successively.
2. projector as claimed in claim 1, it is characterized in that, the second end of this conductive structure contacts with this fan or both spacing are less than predetermined value.
3. projector as claimed in claim 1, it is characterized in that, also comprise the second heat dissipation channel, this second heat dissipation channel is positioned at outside this first heat dissipation channel, and extraneous air-flow can enter this fan via this second heat dissipation channel, to dispel the heat to this light source.
4. projector as claimed in claim 3, it is characterized in that, this housing is also provided with the second air inlet, and external air flow can enter this second heat dissipation channel via this second air inlet.
5. projector as claimed in claim 3, it is characterized in that, this projector also comprises power supply unit, and this power supply unit is positioned at outside this conductive structure.
6. projector as claimed in claim 1, it is characterized in that, this conductive structure comprises wind scooper and guide duct, this wind scooper is connected with guide duct and is connected, this guide duct contacts with this fan or between the two apart from being less than predetermined value, and this wind scooper covers this lamp plate and to contact with this air inlet or between the two apart from being less than predetermined value.
7. projector as claimed in claim 6, it is characterized in that, this wind scooper and guide duct are made up of metal material or heat-barrier material.
8., as the projector that claim 7 is stated, it is characterized in that, this wind scooper and guide duct as a whole.
9. projector as claimed in claim 1, it is characterized in that, this housing is provided with air outlet, and this air outlet is relative with this fan, and this external air flow flowing through this fan can be discharged outside this housing via this air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410352825.XA CN104238246A (en) | 2014-07-23 | 2014-07-23 | Projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410352825.XA CN104238246A (en) | 2014-07-23 | 2014-07-23 | Projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104238246A true CN104238246A (en) | 2014-12-24 |
Family
ID=52226626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410352825.XA Pending CN104238246A (en) | 2014-07-23 | 2014-07-23 | Projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104238246A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114721210A (en) * | 2022-03-21 | 2022-07-08 | 峰米(重庆)创新科技有限公司 | Projection equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450402A (en) * | 2002-04-05 | 2003-10-22 | 中强光电股份有限公司 | Radiation structure for projector |
| CN101025557A (en) * | 2006-02-24 | 2007-08-29 | 精工爱普生株式会社 | Projector |
| JP2010230779A (en) * | 2009-03-26 | 2010-10-14 | Seiko Epson Corp | Projector |
| JP2011145332A (en) * | 2010-01-12 | 2011-07-28 | Sanyo Electric Co Ltd | Projection type video display apparatus |
-
2014
- 2014-07-23 CN CN201410352825.XA patent/CN104238246A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450402A (en) * | 2002-04-05 | 2003-10-22 | 中强光电股份有限公司 | Radiation structure for projector |
| CN101025557A (en) * | 2006-02-24 | 2007-08-29 | 精工爱普生株式会社 | Projector |
| JP2010230779A (en) * | 2009-03-26 | 2010-10-14 | Seiko Epson Corp | Projector |
| JP2011145332A (en) * | 2010-01-12 | 2011-07-28 | Sanyo Electric Co Ltd | Projection type video display apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114721210A (en) * | 2022-03-21 | 2022-07-08 | 峰米(重庆)创新科技有限公司 | Projection equipment |
| CN114721210B (en) * | 2022-03-21 | 2024-05-07 | 峰米(重庆)创新科技有限公司 | Projection apparatus |
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Application publication date: 20141224 |