CN209356835U - Electronic equipment - Google Patents
Electronic equipment Download PDFInfo
- Publication number
- CN209356835U CN209356835U CN201920038536.0U CN201920038536U CN209356835U CN 209356835 U CN209356835 U CN 209356835U CN 201920038536 U CN201920038536 U CN 201920038536U CN 209356835 U CN209356835 U CN 209356835U
- Authority
- CN
- China
- Prior art keywords
- heat
- dust
- circulating fan
- heat exchanger
- electronic equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a kind of electronic equipment, inhibits sending and receiving for electromagnetic wave noise.Have: heat source (51)；The dust-proof shell (145) of sealing structure is stored heat source (51)；Heat exchange department (53) absorbs the heat that heat source (51) issue, and external to dust-proof shell (145) releases absorbed heat；And grounding parts (52), heat exchange department (53) is grounded to the earth (54).
Description
Technical field
The utility model relates to have the electronic equipment of dustproof construction.
Background technique
It has been known that there is a kind of projection display device (hereinafter also referred to as projectors), have: light supply apparatus；Optic modulating device,
It is modulated according to emergent light of the image information to the light supply apparatus, to form image；And projection optical system, by the figure
It is projected on face as amplification projects to screen etc..Projection display device is an example of electronic equipment.
In recent years, the long life of life of product is required projector.For the long life of life of product, need to place dust
It is attached to the optical element for constituting projector, and optical element itself needs durability.
The electricity that projector is also equipped with the control unit of control optic modulating device and supplies electric power to light supply apparatus and control unit
Source device etc..These optic modulating devices and power supply device are the heat sources for generating heat.On the other hand, also using very in projector
Mostly heat labile electronic component.Therefore, in order to maintain the optical property of projector, suitably cooling these electronic components also becomes
It is extremely important.
The dust-proof shell of sealing structure is recorded in patent document 1 and has the projector of refrigerating function.The projection
Instrument has: the shell of the first-class sealing structure of storage projection lens；It is arranged in the intracorporal heat absorbing sheet of shell；Heat dissipation outside shell is set
Piece；And shell is penetrated through to connect heat absorbing sheet and cooling fin and carry out the mobile heat pipe of heat.By heat absorbing sheet, cooling fin and heat pipe
The part of composition is cooling device.
Existing technical literature
Patent document 1: Japanese Unexamined Patent Publication 2010-107631
Utility model content
Utility model project to be solved
But in the projector for being recorded in patent document 1, since cooling device is not grounded, heat pipe itself sometimes
It is functioned as the antenna for sending or receiving electromagnetic wave noise.For example, heat pipe is used as reception from configuration in projector sometimes
The antenna of the electromagnetic wave noise that the electronic equipment on periphery issues functions.
The purpose of this utility model is that solving the above problems, provides and be able to suppress sending and receiving for electromagnetic wave noise
Electronic equipment.
Means for solving the problems
The electronic equipment of the utility model, has: heat source；The dust-proof shell of sealing structure, stores the heat source；Heat exchange
Unit absorbs the heat that the heat source issues, and external to the dust-proof shell releases absorbed heat；And ground connection is single
The heat exchange unit is grounded to the earth by member.
Utility model effect
According to the utility model, the electronic equipment sent and received for being able to suppress electromagnetic wave noise can be obtained.
Detailed description of the invention
Fig. 1 is the schematic diagram for showing the outline structure of the electronic equipment of the 1st embodiment of the utility model.
Fig. 2A is the perspective view for showing the appearance of the projector of the 2nd embodiment of the utility model.
Fig. 2 B is the appearance for showing the projector for making Fig. 2A rotate counterclockwise 90 ° with vertical direction axial rotary
Perspective view.
Fig. 3 is the perspective view of appearance when showing the upside of the device housing for the projector for having dismantled the 2nd embodiment.
The perspective view of appearance when Fig. 4 is the device housing for showing the projector for having dismantled the 2nd embodiment.
Fig. 5 is the perspective view of appearance when showing the upside of the dust-proof shell for the projector for having dismantled the 2nd embodiment.
Fig. 6 is the schematic diagram for showing the outline structure of projector of the 2nd embodiment.
Fig. 7 A is to illustrate that heat exchanger endothermic section and the heat exchanger radiating part peace of the projector of the 2nd embodiment will be constituted
It is attached to the assembling figure of the state of the bottom surface of device housing.
Fig. 7 B is that heat exchanger radiating part (is connected to shielding metal by metal connecting spring by the part B of explanatory diagram 7A
The part of plate) perspective view.
Fig. 7 C is that heat exchanger radiating part (is connected to shielding metal by metal connecting spring by the C portion of explanatory diagram 7A
The part of plate) figure.
Fig. 8 is the K-K cross-sectional view of Fig. 7 A.
Fig. 9 is Fig. 7 A being installed to heat exchanger endothermic section and heat exchanger radiating part after the bottom surface sections of device housing
K-K cross-sectional view.
Figure 10 is the state for illustrating to be installed to heat exchanger endothermic section using metal connecting spring circulating fan bracket
Perspective view.
Figure 11 is the F-F cross-sectional view of Figure 10.
Figure 12 A is the perspective view for being exaggerated the appearance of metal connecting spring.
Figure 12 B is the perspective view for being exaggerated the major part of the part of installation metal connecting spring of circulating fan bracket.
Figure 13 A is the perspective view that the appearance of metal connecting spring of Figure 12 A is observed from the direction arrow R.
Figure 13 B is the part that the installation metal connecting spring of the circulating fan bracket of Figure 12 B is observed from the direction arrow R
The perspective view of major part.
Figure 14 be show heat exchanger endothermic section and heat exchanger radiating part are installed to it is outer after circulating fan bracket
The perspective view of sight.
Figure 15 is to observe that the heat exchanger endothermic section of Figure 14 and heat exchanger radiating part are installed to and are followed from the direction arrow S
The perspective view of appearance after ring blower tray.
Label declaration
10 electronic equipments
11,12,13,14 metal connecting springs
21 first bending sections
22,24 second bending section
23 third bending sections
25,26 positioning relief
27 anti-reverse mountings opening
43 spring backoff portion
45,46 locating aperture
47 anti-reverse mounting ribs
51 heat sources
52 grounding parts
53 heat exchange departments
54 the earth
100 projectors
101,102,103 device housings
105 device housing bottom surface sections
110,111,112,113 exhaust outlet
120,121,122,123 air entry
132 projection lens
140,141,142 radiator fan
143,144,145 dust-proof shell
146 circulating fan electrified cables
147 liquid crystal display panel electrified cables
148 air supply tubes
149 dust-proof shell bottom surface sections
150,151,152 heat exchanger radiating part
160,161 control base board
170,171 heat exchanger endothermic section
180 heat exchanger heat pipes
181 circulating fan brackets
182 circulating fans
183 synthetic prisms
184 liquid crystal display panels
185 light engines
186 liquid crystal surface plate portions
191,192,193,194 metal connecting piece
195 ground wires
196 shielding metal plates
199 heat pipe maintaining parts
Specific embodiment
Then, the embodiments of the present invention is illustrated referring to attached drawing.
(the 1st embodiment)
Fig. 1 is the schematic diagram for illustrating the outline structure of the electronic equipment of the 1st embodiment of the utility model.
As shown in Figure 1, the electronic equipment 10 of present embodiment have heat source 51, dust-proof shell 145, heat exchange department 53 and
Grounding parts 52.
The dust-proof shell 145 of sealing structure stores heat source 51.Heat exchange department 53 absorbs the heat that heat source 51 issues, to dust-proof
The external of shell 145 releases absorbed heat.Heat exchange department 53 is grounded to the earth 54 by grounding parts 52.
Electronic device according to the present embodiment, since heat exchange department 53 is grounded, which will not make
It plays a role to send or receive the antenna of electromagnetic wave noise.
(the 2nd embodiment)
Fig. 2A is the perspective view for showing the appearance of the projector of the 2nd embodiment of the utility model.Fig. 2 B is to show to make
When Fig. 2A has rotated counterclockwise 90 ° as axial rotary using vertical direction, the appearance of projector perspective view.In addition,
In attached drawing below, when having loaded projector 100, if top is Z-direction, thrown if image etc. amplifies from projection lens 132
Direction on shadow to screen (not shown) is X-direction, if rotating counterclockwise from X-direction by axial rotary of Z axis
90 ° of direction is Y-axis to carry out following illustrate.
As shown in Fig. 2A, Fig. 2 B, projector 100 is constituted with the state for being equipped with device housing 101 and device housing 102.
As shown in Figure 2 B, projector 100 has for making air be flowed into internal air entry 121,122 from the outside of projector 100,
It is cooled down with the heat generated to the optical component in projector 100.In addition, having will throw as shown in Fig. 2A, Fig. 2 B
The exhaust outlet 111,112 that the heat that optical component in shadow instrument 100 generates is discharged to the outside from the inside of projector 100.
In Fig. 2A, Fig. 2 B, although instantiating projector 100 has the case where each two air entries respectively and exhaust outlet,
But the quantity of air entry and exhaust outlet is arbitrary.
Appearance when then, to the upside of the device housing for the projector for having dismantled present embodiment and projector is dismantled
Device housing when appearance be illustrated.Fig. 3 is the upside for showing the device housing for the projector for having dismantled present embodiment
The perspective view of appearance when (device housing 101).Fig. 4 is the upside for having dismantled the device housing of projector of present embodiment
The perspective view of appearance when (device housing 101) and downside (device housing 102).
As shown in Figure 3, Figure 4, device housing 101,102 has light source 131, projection lens 132, control base board in inside
161, dust-proof shell 143,144, heat exchanger radiating part 151,152 and radiator fan 141,142.
Light source 131 has the light sources such as laser diode (LD:Laser Diode), lens and the light for reflecting specific wavelength
And the optical elements such as dichronic mirror for transmiting the light of other wavelength.The amplifications such as image are projected to screen (not shown) by projection lens 132
Curtain.
Control base board 161 has: the control unit controlled the movement of projector 100；And the aftermentioned circulation of connection
The component etc. of the power supply of fan, liquid crystal display panel etc. and the electrified cable to the supply power supply such as circulating fan, liquid crystal display panel.
Dust-proof shell 143,144 has aftermentioned light engine, circulating fan bracket, heat exchanger endothermic section etc..Heat dissipation
Fan 141,142 is arranged relative to air entry 121,122, and heat exchanger radiating part 151,152 is relative to radiator fan 141,142
Setting.
Radiator fan 141,142 is taken into air from air entry 121,122 by rotating.The air being taken into and conduction are anti-
The heat exchanger radiating part 151,152 of the heat generated in dirt shell 143,144 collides.Heat exchanger radiating part 151,152 is logical
It crosses the collision of air and is cooled, the hot wind issued from heat exchanger radiating part 151,152 is discharged to dress from exhaust outlet 111,112
Set the outside of shell 101,102.
Appearance when then, to the upside of the dust-proof shell of the projector of disassembly present embodiment is illustrated.Fig. 5 is to show
The perspective view of appearance when having dismantled the upside of the dust-proof shell of the projector of present embodiment out.
In Fig. 5, dust-proof shell 143,144 in inside there is light engine 185, circulating fan bracket 181 and heat to hand over
Parallel operation endothermic section 171.
Light engine 185 has color separating optical system and color formula system, according to picture signal to from light source 131
The light of injection is modulated and forms image.Color separating optical system is made of dichronic mirror, reflecting mirror etc., which is used for
Via the consistent optical element of polarization (the PBS:Polarizing Beam Splitter (polarization for making the light projected from light source 131
Beam splitter)) and color-separated is R (red), G (green), B (blue).Color formula system is by generating image to each color of RGB
Liquid crystal surface plate portion 186 equal constitute.In addition, herein, liquid crystal surface plate portion 186 includes incident side polarizer, liquid crystal display panel and penetrates
Lateral deviation tabula rasa out.
As described later, the circulating fan of the air circulation in dust-proof shell 143,144 is made built in circulating fan bracket 181.
Circulating fan bracket 181 is installed to heat exchanger endothermic section 171 by metal connecting spring.
As described later, heat exchanger endothermic section 171 absorbs the heat generated in dust-proof shell 143,144, passes through heat pipe
The heat is transmitted to heat exchanger radiating part 151,152.
Then, the outline structure of the projector of present embodiment is illustrated.Fig. 6 is the projection for showing present embodiment
The schematic diagram of the outline structure of instrument.In addition, device housing 103 is arranged in each other in air entry 120 and exhaust outlet 110 in Fig. 6
On opposite face, as more above-mentioned Fig. 2 B, Fig. 3, air entry 120 is different from the positional relationship of exhaust outlet 110.Fig. 6 is to say
The schematic diagram of the relationship of the transmission method and air entry 120 and exhaust outlet 110 of the bright heat generated in dust-proof shell 145, no
Indicate the correct positional relationship between air entry 120 and exhaust outlet 110.
In Fig. 6, projector 100 has air entry 120, exhaust outlet 110, control base board 160, radiator fan 140, heat and hands over
Parallel operation radiating part 150, projection lens 132, dust-proof shell 145 and the shielding metal plate 196 for being grounding to ground wire 195.
Dust-proof shell 145 has: heat exchanger endothermic section 170；Circulating fan 182；Air supply tube 148；Constitute above-mentioned color
The synthetic prisms 183 of coloured silk separation optical system；And constitute the liquid crystal display panel 184 of above-mentioned color formula system.Herein, it synthesizes
Prism 183 and liquid crystal display panel 184 constitute a part of light engine 185 illustrated in fig. 5.The setting of light engine 185 is being blown
The upper space of pipe 148.
Circulating fan 182 is connect by circulating fan electrified cable 146 with the power supply that control base board 160 is arranged in.Liquid crystal
Panel 184 is connect by liquid crystal display panel electrified cable 147 with the power supply that control base board 160 is arranged in.Heat exchanger endothermic section 170
It is connect with heat exchanger radiating part 150 by heat exchanger heat pipe 180.
Heat exchanger endothermic section 170 is connect by metal connecting piece 191 with dust-proof shell 145.Dust-proof shell 145 passes through gold
Belong to connector 192,193 to connect with the shielding metal plate 196 for being grounding to ground wire 195.In addition, heat exchanger radiating part 150 is logical
It crosses metal connecting piece 194 and is connect with the shielding metal plate 196 for being grounding to ground wire 195.The point will be described in detail later.
Then, the circulation of the heat generated in dust-proof shell 145 is illustrated.Air supply tube 148 is arranged in composition
The PBS of the light engine 185 of upper space, liquid crystal surface plate portion 186 are generated heat by light absorbing a part.Therefore, by making
Circulating fan 182 rotates to allow air to flow into the air entry 123 of the air supply tube 148 for the lower part that light engine 185 is arranged in.Make
With the air released from the exhaust outlet 113 of air supply tube 148 come the light engine 185 to the upper space that air supply tube 148 is arranged in
It is cooled down.The air as high temperature after being cooled down to light engine 185 passes through the suction that circulating fan 182 is arranged in
Heat exchanger endothermic section 170 near port.The heat absorbed by heat exchanger endothermic section 170 is through over-heat-exchanger heat pipe 180
And it is transmitted to the heat exchanger radiating part 150 that the outside of dust-proof shell 145 is set.
Radiator fan 140 rotates, to make the air of the outside of device housing 103 from the suction that device housing 103 is arranged in
Port 120 is flowed into the inside of device housing 103.Radiator fan 140 uses the air for being flowed into the inside of device housing 103,
By the heat for being transmitted to heat exchanger radiating part 150 from the exhaust outlet 110 of device housing 103 is arranged in device housing 103
Outside releases.
Then, the sealing structure of dust-proof shell 145 is illustrated.Dust-proof shell 145 is in storage heat exchanger endothermic section
170, it is sealed in the state of circulating fan 182 and light engine 185.But liquid crystal display panel electrified cable 147 and circulated air
Fan electrified cable 146 penetrates through dust-proof shell 145.Liquid crystal display panel electrified cable 147 and circulating fan electrified cable 146 use predetermined
Component be connected to the power supply of liquid crystal display panel 184, circulating fan 182 that control base board 160 is set.In addition, connection heat exchange
The heat exchanger heat pipe 180 of device endothermic section 170 and heat exchanger radiating part 150 also penetrates through dust-proof shell 145.
At this point, prevent dust from be formed in dust-proof shell 145 for making liquid crystal display panel electrified cable 147 and circulation
Small gap around the through-hole that fan electrified cable 146 passes through and around the through-hole of heat exchanger heat pipe 180 is invaded
The countermeasure entered.For example, filling up gap using the gap fillings component such as cushion, rubber, filler, adhesive around through-hole.
Moreover, being not only around through-hole, gap of the gap filling component itself between dust-proof shell 145 can also also be filled out
It mends.
In this configuration, heat exchanger radiating part 150 and heat exchanger endothermic section 170 are across heat exchanger heat pipe 180
And it is maintained at dust-proof shell 145, become electrically floating state.In brief, heat exchanger radiating part 150 and heat exchanger heat absorption
Portion 170 is not connected to the earth, therefore plays a role as antenna, to be easy to collect noise.
In general, its own shows as known electrically floating conductor (for example, metal parts with scheduled length)
Antenna and the coupling for being easy progress electromagnetic field.At this point, for example, be easy influenced by the electromagnetic wave issued from peripheral equipment,
The problem of being easy to produce EMI (Electro Magnetic Interference: electromagnetic interference).
When being influenced by the electromagnetic wave issued from peripheral equipment, sometimes in the power circuit of projector 100, driving
Circuit system, video system circuit generate failure.Therefore, the influence for inhibiting electromagnetic wave, for maintaining the performance of projector 100
It is very important.In the present embodiment, using metal connecting piece 191 by the heat exchanger endothermic section in dust-proof shell 145
170 are electrically connected with dust-proof shell 145.In addition, by dust-proof shell 145 and being grounding to ground wire using metal connecting piece 192,193
195 shielding metal plate 196 is electrically connected.Moreover, using metal connecting piece 194 by heat exchanger radiating part 150 be grounding to
The shielding metal plate 196 of ground wire 195 is electrically connected.That is, by as the heat exchanger endothermic section 170 of electrically floating conductor and heat exchange
Device radiating part 150 is grounded to ground wire 195 (the earth).By using the structure, projector 100 be difficult by from configuration on periphery
The influence for the electromagnetic wave that electronic equipment issues.
Then, it is installed to by the heat exchanger endothermic section and heat exchanger radiating part that constitute the projector of present embodiment
The method of the bottom surface of device housing is illustrated.Fig. 7 A is to illustrate for heat exchanger endothermic section and heat exchanger radiating part to be installed to
The assembling figure of the state of the bottom surface of device housing.Fig. 7 B is that the part B of explanatory diagram 7A (is connected heat exchanger radiating part by metal
Connect spring be connected to shielding metal plate part) perspective view.Fig. 7 C is the C portion of explanatory diagram 7A (by heat exchanger radiating part
By metal connecting spring be connected to shielding metal plate part) figure.Fig. 8 is the K-K cross-sectional view of Fig. 7 A.Fig. 9 is to hand over heat
Parallel operation endothermic section and heat exchanger radiating part are installed to the K-K cross-sectional view of Fig. 7 A after the bottom surface sections of device housing.
As shown in Fig. 7 A, Fig. 8, Fig. 9, heat exchanger endothermic section 171 is connected using the metal for being mounted on circulating fan bracket 181
It connects spring 11,12 and is connect across circulating fan bracket 181 with dust-proof shell bottom surface sections 149.Dust-proof shell bottom surface sections 149 are across screen
It covers metal plate 196 to be fastened with device housing bottom surface sections 105, to connect with shielding metal plate.Heat exchanger radiating part
151, it 152 is connect respectively using metal connecting spring 13,14 with shielding metal plate 196.
Also, heat exchanger radiating part 151 (is connected to shielding gold by metal connecting spring 13 by the part B of Fig. 7 A
Belong to the part of plate 196) and the C portion of Fig. 7 A (it is golden that heat exchanger radiating part 152 is connected to by shielding by metal connecting spring 14
Belong to plate 196 part) enlarged drawing be shown respectively in Fig. 7 B, Fig. 7 C.
Then, to using metal connecting spring to say the method that heat exchanger endothermic section is installed to circulating fan bracket
It is bright.Figure 10 is the solid for illustrating to be installed to heat exchanger endothermic section using metal connecting spring the state of circulating fan bracket
Figure.Figure 11 is the F-F cross-sectional view of Figure 10.
As shown in Figure 10, Figure 11, using metal connecting spring 11,12 by heat exchanger endothermic section 171 and circulating fan branch
Frame 181 connects.At this point, as shown in figure 11, becoming the heat pipe maintaining part 199 of circulating fan bracket 181 and heat exchanger heat pipe
The shape for being dug into semi-circular shape of 180 shape cooperation, so that heat exchanger heat pipe 180 is easy insertion.By heat exchanger
The sequence that endothermic section 171 is installed to circulating fan bracket 181 is that metal connecting spring 12 is initially installed to circulating fan bracket
181.Then, heat exchanger endothermic section 171 is installed in the circulating fan bracket 181 for being equipped with metal connecting spring 12.It is golden as a result,
Belong to connecting spring 12 and heat exchanger endothermic section 171 is connected.In addition, being carried out below to the shape of metal connecting spring 11,12
Explanation.
Then, the master of the part of the installation metal connecting spring of the appearance to metal connecting spring and circulating fan bracket
It to be partially illustrated.Figure 12 A is the perspective view for being exaggerated the appearance of metal connecting spring.Figure 12 B is to be exaggerated circulating fan
The perspective view of the major part of the part of the installation metal connecting spring of bracket.Figure 13 A is to observe Figure 12 A from the direction arrow R
Metal connecting spring appearance perspective view.Figure 13 B is the peace that the circulating fan bracket of Figure 12 B is observed from the direction arrow R
Fill the perspective view of the major part of the part of metal connecting spring.
As illustrated in fig. 12, the side (P of Figure 12 A for being connected to heat exchanger endothermic section 171 of metal connecting spring 11,12
Part) become following shape.That is, when metal connecting spring 11,12 is being installed to circulated air with sequence illustrated in fig. 11
After fanning bracket 181, when connecting heat exchanger endothermic section 171 from the left side of metal connecting spring 11,12, due to being not easy to take off
It falls, therefore when from the direction arrow T from Figure 12 A, becomes the shape for the substantially U font that left side is closed.Moreover, in order to right
Insertion heat exchanger endothermic section 171 is easy in metal connecting spring 11,12 and by metal connecting spring 11,12 and heat exchanger
Endothermic section 171 reliably connects, and the portion P of the second bending section 22,24 is bent to peak folding shape, is made from the arrow side T of Figure 12 A
Become taper to the shape of the second bending section 22,24 when observation.
In addition, in the side (right side of Figure 12 A being connect with the circulating fan bracket 181 of metal connecting spring 11,12
Point), it installs in a manner of the locating aperture 45,46 for positioning circulating fan bracket 181 of the relief 25,26 to enter Figure 12 B.And
And circulating fan bracket 181 is clamped using the first bending section 21 and is fixed.
It is such as illustrated in Figure 6, heat exchanger endothermic section 171 carries out the through-hole of dust-proof shell 145 and heat exchanger heat pipe 180
Around gap filling.Therefore, the position of the short transverse (Z-direction) of heat exchanger endothermic section 171 is fixed, and is being constituted
Deviation is generated in the short transverse of the fin of heat exchanger endothermic section 171.In contrast, making the portion P of the second bending section 22,24
Peak folding shape is bent to, and metal touches heat exchanger endothermic section 171.That is, the second bending section 22,24 is according to composition heat exchange
The height of each fin of device endothermic section 171 and spring contacts, to absorb the deviation of the short transverse of heat exchanger endothermic section 171.
Moreover, shape is rolled over by the way that third bending section 23 is bent to downwards paddy, thus as illustrated in Fig. 8, third bending
Portion 23 is contacted with dust-proof 149 spring of shell bottom surface sections.
In assembling metal connecting spring 11,12 and circulating fan bracket 181, assembling heat exchanger endothermic section 171 is organized, and is assembled
When to dust-proof shell bottom surface sections 149, the second bending section 22,24 with opening state of the third bending section 23 before assembling after assembling
Become closed state.Also, in Figure 12 A viewed from above, the second bending section 22,24 and third bending section 23 are formed as position
It sets and is offset from one another.Even if as a result, in the case where becoming the state for being closed the second bending section 22,24 and third bending section 23,
Also the second bending section 22,24 is avoided to abut with third bending section 23.
In addition, the front end portion (right end portion) of the peak folding shape of the portion P in order to make the second bending section 22,24 is downwards
Pressing avoids being bent to the direction not being intended to, as shown in Figure 12 B, in circulating fan to abut to circulating fan bracket 181
Spring backoff portion 43 is arranged in bracket 181.Equally, in order to make third bending section 23 the part Q paddy folding shape front end portion it is (right
End part) it presses upwards, to abut to circulating fan bracket 181, avoid being bent to the direction not being intended to, such as Figure 12 B institute
Show, spring backoff portion 43 is set in circulating fan bracket 181.In brief, spring backoff portion 43 is in order to avoid the second bending
The interference between interference and third bending section 23 and circulating fan bracket 181 between portion 22,24 and circulating fan bracket 181 and
It is arranged.
As shown in Figure 12 A, Figure 13 A and Figure 12 B, Figure 13 B, metal connecting spring 11,12 is being installed to circulating fan
When bracket 181, the anti-reverse mounting rib 47 of circulating fan bracket 181 is embedded into the anti-reverse mounting opening of metal connecting spring 11,12
27.Also, metal connecting spring 11,12 is installed by upper and lower opposite direction in order to prevent, carries out following work below.That is, such as
Shown in Figure 13 B, the anti-reverse mounting of metal connecting spring 11,12 is used to the anti-reverse mounting rib 47 of opening 27 and circulating fan bracket 181,
It is formed in from the position that the center line M-M of the opening portion (N section) of circulating fan bracket 181 is deviated to the direction arrow L.As a result,
Metal connecting spring 11,12 can be prevented to be mistakenly inserted circulating fan bracket 181.
As the material of metal connecting spring 11,12, preferably following material.Due to the change of metal connecting spring 11,12
Shape amount is more, therefore for example, it is preferable to stainless steel spring steel, in the present embodiment, using spring stainless steel belt < JIS G
4313 > SUS304-CSP1/2H, thickness 0.2mm.
Then, to the appearance being installed to heat exchanger endothermic section and heat exchanger radiating part after circulating fan bracket into
Row explanation.Figure 14 is to show the appearance being installed to heat exchanger endothermic section and heat exchanger radiating part after circulating fan bracket
Perspective view.Figure 15 is to observe for the heat exchanger endothermic section of Figure 14 and heat exchanger radiating part to be installed to from the direction arrow S
The perspective view of appearance after circulating fan bracket.
As shown in Figure 14, Figure 15, heat exchanger endothermic section 171 and circulating fan bracket 181 using metal connecting spring 11,
12 connections.As shown in figure 15, opening portion (N section) (figure of the back side of heat exchanger endothermic section 171 in circulating fan bracket 181
In 13B), anti-reverse mounting rib 47 and the anti-reverse mounting of metal connecting spring 11,12 in circulating fan bracket 181 are embedding with opening 27
The state of conjunction.In addition, the third bending section 23 of metal connecting spring 11,12 is in connect with dust-proof 149 spring of shell bottom surface sections
The mode of touching state outstanding.
When the inside of the device housing 103 in projector 100 flows into air, dust is also flowed into device together with air
The inside of shell 103.When dust enters the inside of device housing 103, which is attached to optical component, projection can be generated
Phenomena such as brightness reduction of instrument 100, color spot.At this point, being unable to maintain that the optical property of projector 100.
Therefore, dust is flowed into the inside of device housing 103 in order to prevent, and dustproof filter is arranged at air entry 120 (Fig. 6)
Device.Pass through membrane filter from the external air flowed into of device housing 103, dust is removed.Dust be removed after sky
Gas arrives heat labile electronic component by air-supply, so that electronic component is cooled, inhibits the heat issued from heat source.
The dust removal capacity of the thinner membrane filter of the mesh of filter is higher.In order to improve dust removal capacity and
When having used the thin membrane filter of mesh, the clogging of filter is easily caused.In addition, in order to cool down heat labile electricity
Subcomponent and when needing big air quantity, since the flow of the air by membrane filter becomes larger, easily cause filter
Clogging.In the clogging of filter, the amount for the air being taken into from the outside of device housing 103 is reduced, and is sent to not
The air quantity of heat-resisting electronic component tails off.Therefore, the temperature of electronic component rises, which can deteriorate.The worst situation
Under, there are problems that leading to the failure of projector 100.
Heat labile electronic component is cooled down by flowing into the air for eliminating dust by dust removal filter,
But the inflow of dust can not be completely removed.Therefore, as time goes by, more dusts are attached to optical component.Its result
It is the temperature rising inside the reduction and projector 100 for the brightness for leading to projector 100, exists and be unable to maintain that projector 100
The problem of performance.
As the method for avoiding dust from being attached to optical component, it is known to method as described below.
Firstly, ash can be reduced in the method for the dust removal filter and multi-bed filter high using dust removal capacity
The inflow of dirt.But dust removal filter and multi-bed filter that dust removal capacity is high, for the air by filter
As impedance.At this point, needing more air quantity in order to which the electronic component of the inside to projector 100 cools down.Therefore, it needs
The rotation speed of fan is improved, the quantity of fan is perhaps increased or increases the size of fan.As a result, it may appear that companion
Noise is led to the problem of with the increase of the rotation speed of fan, with the increase of the quantity of fan, the large size of the size of fan
Change, the problem of becoming large-sized of projector 100.
Then, it is known to the sealing space around optical component is constituted, by making fluid in the sealing space
Circulation is to carry out cooling method to optical component.In the method, using the inside and outside that the sealing space is arranged in
Heat in the sealing space is released to outside by the heat exchanger of relative position.But in the method, it needs
For driving the unit of thermoelectric conversion element and fluid.Accordingly, there exist the required consumption electric power of cooling to increase, and projector
100 the problem of becoming large-sized.
It is such as illustrated in Figure 6, the projector 100 of present embodiment makes air prevent dust using circulating fan 182
Deng intrusion dust-proof shell 145 inside circulation, thus to the light of the fevers such as liquid crystal display panel, polarizer, polarization conversion device
Element is learned to be cooled down.Also, projector 100 has structure as described below.
Projector 100, which has, makes heat from the heat exchanger endothermic section 170 of the heat inside dust-proof shell 145 is absorbed to preventing
The external mobile heat exchanger heat pipe 180 of dirt shell 145.In addition, have will be via heat exchanger heat pipe 180 for projector 100
The heat that the heat exchanger endothermic section 170 of conduction absorbs is released to the heat exchanger radiating part 150 of the outside of device housing 103.
Also, projector 100 using be fixed on circulating fan bracket 181 the upper and lower metal spring 11 for having bending section,
12, so that heat exchanger endothermic section 170 to be connected to the shielding gold for being grounding to ground wire 195 via dust-proof shell bottom surface sections 149
Belong to plate 196.In addition, the heat exchanger for the heat that the external releasing to device housing 103 is conducted via heat exchanger heat pipe 180
Radiating part 150 is connected to the shielding metal plate 196 that ground wire 195 is grounding to using metal spring 13,14.
By using this structure, it can obtain being able to suppress and be issued from configuration in the electronic equipment on 100 periphery of projector
Electromagnetic wave noise received projector.
Moreover, also having the additional effect for not increasing consumption electric power and the projector of Miniaturizable capable of being obtained.
In addition, the utility model can not only be applied to the projector of crystal liquid mode, but also it can be applied to have and make
With the throwing of the optical system of the DMD (Digital Micromirror Device: Digital Micromirror Device) of reflection type display element
Shadow instrument.
More than, although the utility model is illustrated referring to embodiment, the utility model is not limited to
Above embodiment.For the utility model structure and in detail, those skilled in the art can be in the scope of the utility model
Inside perform various changes that can be understood.
This application advocates the priority based on Japanese publication Patent 2018-100719 filed on May 25th, 2018,
And all the elements disclosed in it are incorporated into this.
Claims (8)
1. a kind of electronic equipment, which is characterized in that have:
Heat source；
The dust-proof shell of sealing structure, stores the heat source；
Heat exchange unit absorbs the heat that the heat source issues, and external to the dust-proof shell releases absorbed heat；With
And
The heat exchange unit is grounded to the earth by ground unit.
2. electronic equipment according to claim 1, which is characterized in that
The heat exchange unit has the heat absorbing units for absorbing the heat and is inhaled to external release of the dust-proof shell
The heat-sink unit of the heat of receipts, the heat absorbing units are electrically connected with the heat-sink unit.
3. electronic equipment according to claim 2, which is characterized in that
The heat absorbing units are arranged in the dustproof shell body, and the heat-sink unit setting is external in the dustproof shell.
4. electronic equipment according to claim 2 or 3, which is characterized in that
The dust-proof shell is also equipped with the circulating fan for making the intracorporal air circulation of the dustproof shell, and the heat absorbing units are across guarantor
The circulating fan holding member for holding the circulating fan is electrically connected with the bottom surface sections of the dust-proof shell.
5. electronic equipment according to claim 2 or 3, which is characterized in that
The bottom of the heat-sink unit and the bottom surface sections that the dust-proof shell is set and the device housing of the storage dust-proof shell
Shield member electrical connection between face.
6. electronic equipment according to claim 4, which is characterized in that
The heat absorbing units are connect with the circulating fan holding member using spring member, and the spring member has first
Bending section, the second bending section and third bending section, first bending section are connect with the circulating fan holding member, and described
Two bent members are connect with the heat absorbing units, and the third bending section is connect with the bottom surface sections of the dust-proof shell.
7. electronic equipment according to claim 6, which is characterized in that
The spring member is also equipped with positioning convex portion and anti-reverse mounting recess portion, and the circulating fan holding member has locating aperture portion
With anti-reverse mounting protrusion, when the heat absorbing units are connect with the circulating fan holding member, the positioning convex portion with it is described fixed
Position opening portion is chimeric, and the anti-reverse mounting recess portion is chimeric with the anti-reverse mounting protrusion.
8. electronic equipment according to claim 1, which is characterized in that
The electronic equipment has:
Light source；
Light engine is modulated the light projected from the light source and forms image；And
Projecting cell, the image formed to the light engine project,
The heat source includes at least the light engine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-100719 | 2018-05-25 | ||
| JP2018100719A JP2019204052A (en) | 2018-05-25 | 2018-05-25 | Electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209356835U true CN209356835U (en) | 2019-09-06 |
Family
ID=67802702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920038536.0U Active CN209356835U (en) | 2018-05-25 | 2019-01-09 | Electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2019204052A (en) |
| CN (1) | CN209356835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110955105A (en) * | 2019-12-20 | 2020-04-03 | 青岛海信激光显示股份有限公司 | Laser projection device |
| WO2023159545A1 (en) * | 2022-02-28 | 2023-08-31 | 京东方科技集团股份有限公司 | Projection device |
-
2018
- 2018-05-25 JP JP2018100719A patent/JP2019204052A/en active Pending
-
2019
- 2019-01-09 CN CN201920038536.0U patent/CN209356835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110955105A (en) * | 2019-12-20 | 2020-04-03 | 青岛海信激光显示股份有限公司 | Laser projection device |
| WO2023159545A1 (en) * | 2022-02-28 | 2023-08-31 | 京东方科技集团股份有限公司 | Projection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019204052A (en) | 2019-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6359721B1 (en) | Optical modulation device and projection display device utilizing the optical modulation device | |
| TW403854B (en) | Projection type display device | |
| US7364327B2 (en) | Projection type display unit | |
| TW522284B (en) | Projection display device | |
| KR100691056B1 (en) | Optical device and rear projector | |
| JP3888040B2 (en) | Optical component and projector equipped with the same | |
| JP2015060073A (en) | On-vehicle camera | |
| CN209356835U (en) | Electronic equipment | |
| CN106200218B (en) | Projecting apparatus | |
| JP7076996B2 (en) | Electronics | |
| JP4706795B2 (en) | projector | |
| JP2009133987A (en) | Projector | |
| KR100627522B1 (en) | Optical modulator, optical device having the optical modulator and projector having the same | |
| CN209471328U (en) | Electronic equipment | |
| JP2011237723A (en) | Projection type display device | |
| JP2009133952A (en) | Projection display device | |
| CN214751283U (en) | LCD micro projector | |
| JP2006208719A (en) | Projector | |
| CN104298053B (en) | Image projecting equipment | |
| JP4466147B2 (en) | Optical apparatus and projector | |
| JP2009251370A (en) | Projector | |
| CN212694230U (en) | Projector with a light source | |
| CN215773390U (en) | Optical machine assembly and laser projection equipment | |
| CN217060746U (en) | Directional heat abstractor of LCD projecting apparatus | |
| CN113534581B (en) | Projection optical device and projector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: Sharp NEC display solutions Co.,Ltd. Address before: Tokyo, Japan Patentee before: NEC DISPLAY SOLUTIONS, Ltd. |