CN113126402B

CN113126402B - Box body heat dissipation system for laser projector

Info

Publication number: CN113126402B
Application number: CN202110355954.4A
Authority: CN
Inventors: 王理; 甘丹; 王圣进; 王东; 王清松; 王程
Original assignee: Shenzhen Kolo Laser Equipment Co ltd
Current assignee: Shenzhen Kolo Laser Equipment Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2022-04-05
Anticipated expiration: 2041-04-01
Also published as: CN113126402A

Abstract

The utility model relates to a box cooling system for laser projector, relate to the technical field of projecting apparatus, which comprises a housin, be provided with two base plates in the casing, the base plate level sets up, the base plate sets up along vertical direction interval, vacuole formation between the two base plates, the casing includes two curb plates, panel and backplate, curb plate parallel to each other and vertical setting are in the both sides that the base plate is relative, panel and the vertical setting of backplate are in the base plate both sides and parallel to each other, panel and backplate are perpendicular with the curb plate, base plate and curb plate, panel and backplate butt, the air outlet has been seted up on the panel, the air intake has been seted up on the backplate, cavity intercommunication between air outlet and air intake and the two base plates, be provided with air-cooled mechanism on the backplate, air-cooled mechanism is arranged in blowing to the air intake. The present application has the effect of reducing the chance of dust entering the housing of the laser projector.

Description

Box body heat dissipation system for laser projector

Technical Field

The application relates to the technical field of projectors, in particular to a box heat dissipation system for a laser projector.

Background

The laser projector is an instrument for transmitting pictures by using laser beams, an optical component of the laser projector mainly comprises a red-green-blue three-color light valve, a prism, a projection lens and a driving light valve, red-green-blue three-color laser is emitted by the light valve in a shell of the laser projector, the three-color laser is transmitted into the prism after being expanded by a corresponding optical element and a processing chip in a machine, the prism integrates the three-color laser, and then the integrated laser is projected onto a curtain by a projection objective. Since various electric and optical elements are provided in the laser projector, the electric and optical elements generate heat when in use, and a heat dissipation mechanism needs to be provided in the laser projector to reduce the temperature inside the laser projector.

The related heat dissipation mechanism for the laser projector comprises a plurality of heat dissipation plates, a substrate used for mounting an electrical element and an optical element is arranged in a shell of the laser projector, the heat dissipation plates are arranged on one side, away from the electrical element and the optical element, of the substrate, the heat dissipation plates are sequentially arranged at intervals in the linear direction, the heat dissipation plates are mutually parallel, a cavity is formed between the heat dissipation plates, an air cooling mechanism used for cooling the heat dissipation plates is arranged on the shell, and the air cooling mechanism blows air to the heat dissipation plates to accelerate the substrate cooling speed.

The above prior art solutions have the following drawbacks: the air cooling mechanism blows outside air into the shell, and when the electrical elements in the shell work, static electricity is easily generated, so that dust is accumulated in the shell, and the performance of the optical elements is influenced.

Disclosure of Invention

In order to reduce the possibility of dust adhering to the electrical and optical components of a laser projector, the present application provides a heat dissipation system for a cabinet for a laser projector.

The application provides a box cooling system for laser projector adopts following technical scheme:

the utility model provides a box cooling system for laser projector, which comprises a housin, be provided with two base plates in the casing, the base plate level sets up, the base plate sets up along vertical direction interval, vacuole formation between two base plates, the casing includes two curb plates, panel and backplate, curb plate parallel to each other and vertical setting are in the both sides that the base plate is relative, panel and the vertical setting of backplate are in the base plate both sides and parallel to each other, panel and backplate are perpendicular with the curb plate, base plate and curb plate, panel and backplate butt, the air outlet has been seted up on the panel, the air intake has been seted up on the backplate, cavity intercommunication between air outlet and air intake and the two base plates, be provided with air-cooled mechanism on the backplate, air-cooled mechanism is arranged in blowing to the air intake.

By adopting the technical scheme, the substrate is arranged in the shell, so that the electric element and the optical element can be arranged on the substrate, the substrate can absorb heat generated on the electric element, the air outlet is formed in the panel, the air inlet is formed in the back plate, and outside air can enter the cavity between the two substrates through the air inlet, so that the dust is brought into the area where the electric element and the optical element are arranged by the outside air, and the probability of dust attached to the electric element and the optical element of the laser projector is reduced.

Optionally, a plurality of first heat dissipation plates are arranged on one side, close to the other substrate, of the substrate, the first heat dissipation plates are sequentially arranged at intervals along the horizontal direction, the length direction of the first heat dissipation plates is parallel to the side plates, and the first heat dissipation plates on the two substrates are in one-to-one correspondence in position and mutually abutted.

Through adopting above-mentioned technical scheme, through set up heating panel one on being close to one side on another base plate on the base plate, make the area of contact increase of base plate and outside air through heating panel one to promote the heat exchange rate of base plate and air, play the effect of accelerating the base plate radiating rate.

Optionally, one side of the base plate, which is far away from the first heat dissipation plate, is provided with a plurality of mounting plates, the mounting plates are provided with connecting seats, the connecting seats are detachably connected with the base plate, the mounting plates are connected to the base plate through the connecting seats, and the mounting plates are perpendicular to the base plate.

Through adopting above-mentioned technical scheme, through setting up the mounting panel on the base plate, make the mounting panel pass through the connecting seat and connect on the base plate to make electrical component and optical element can fix on the base plate through the mounting panel, the heat that electrical component work produced can transmit to the base plate through the mounting panel on, plays the effect of accelerating electrical component radiating rate.

Optionally, a plurality of second heat dissipation plates are arranged on the mounting plate, the second heat dissipation plates are arranged on one side of the mounting plate and parallel to the substrate, and the second heat dissipation plates are sequentially arranged at intervals in the vertical direction.

Through adopting above-mentioned technical scheme, through setting up heating panel two on the mounting panel, make heating panel two can accelerate mounting panel radiating rate, make mounting panel and air area of contact increase through heating panel two to accelerate the electric elements radiating rate on the mounting panel.

Optionally, the air cooling mechanism comprises a connecting plate and a plurality of fans, the connecting plate is detachably connected to the backboard and used for plugging the air inlet, a plurality of air holes are formed in the connecting plate, the fans are sequentially arranged on the connecting plate along the arrangement direction of the first heating panel, and the fans are used for blowing air to the substrate and the first heating panel.

Through adopting above-mentioned technical scheme, through setting up a plurality of fans on the connecting plate, the user can fix the fan on the backplate through the connecting plate, and then makes the fan blow into the cavity between two base plates, blows on base plate and heating panel one through making the fan to electrical component's radiating rate in the casing is accelerated.

Optionally, the dust collecting box is detachably connected to the panel and comprises two vertical plates, a bottom plate and a front plate, the bottom plate is horizontally arranged, the two vertical plates are respectively arranged on two opposite sides of the bottom plate and are perpendicular to the panel, the front plate is arranged between the two vertical plates and is connected with the bottom plate, and one side, far away from the front plate, of the vertical plate is used for being detachably connected with the panel.

Through adopting above-mentioned technical scheme, through set up the dust collection box on the panel, make the dust collection box can dismantle and connect on the panel to make rubbish and dust between two base plates blow off and gather in the dust collection box from the air outlet, play the effect that makes things convenient for the user to clear up.

Optionally, be provided with dust removal mechanism on the front bezel, dust removal mechanism is including taking out board and a plurality of clearance mechanism, clearance mechanism runs through and sliding connection on the front bezel, clearance mechanism inserts to the casing through the air outlet, be provided with a clearance mechanism between per two heating panels one, take out the one side that the casing was kept away from to the board setting on the front bezel, the one end that lies in outside the casing on the clearance mechanism is connected on taking out the board, clearance mechanism is used for clearing up the rubbish between two heating panels one.

Through adopting above-mentioned technical scheme, through set up dust removal mechanism on the front bezel, make clearance mechanism can insert the cavity between two heating panels one, the user draws the board through sliding, makes to draw the board and can drive clearance mechanism reciprocating sliding in the cavity between two heating panels one, and then makes clearance mechanism can scrape out and sweep the rubbish between the heating panel one to the dust-collecting box.

Optionally, clearance mechanism includes connecting rod, telescopic link and slide, and connecting rod and telescopic link run through the front bezel, and connecting rod one end is connected on taking out the board, and the other end inserts to between the heating panel one, and the slide rotates to be connected and keeps away from on taking out the one end of board on the connecting rod, and the slide is used for rotating and can dismantle the connection on the telescopic link, and the slide is arranged in sliding in the cavity between the heating panel one through taking out board and connecting rod drive.

Through adopting above-mentioned technical scheme, through rotating the connection slide on the connecting rod, the user can set level the slide to make the cavity between two heating panels keep unblocked, the wind that makes air cooling mechanism blow off can pass through between the heating panel one, the user can lift air cooling mechanism off, rotate the slide to vertical state and connect on the telescopic link through the air intake, the user pulling is taken out the board this moment, can make the slide to the direction removal that is close to the dust collecting box, thereby make the rubbish between two heating panels scrape out.

To sum up, the beneficial technical effect of this application does:

1. the substrate is arranged in the shell, so that the electric element and the optical element can be arranged on the substrate, the substrate can absorb heat generated on the electric element, the air outlet is formed in the panel, the air inlet is formed in the back plate, and outside air can enter the cavity between the two substrates through the air inlet, so that dust brought by the outside air into an area where the electric element and the optical element are arranged is reduced, and the probability of dust attached to the electric element and the optical element of the laser projector is reduced;

2. the fan is arranged on the connecting plate, so that a user can fix the fan on the back plate through the connecting plate, the fan blows wind into a cavity between the two substrates, and the fan blows the wind on the first substrate and the first heat dissipation plate, so that the heat dissipation speed of the electrical element in the shell is increased;

3. through rotating the connection slide on the connecting rod, the user can set the slide flat to make the cavity between two heating panels keep unblocked, make the wind that air cooling mechanism blown out can pass through between the heating panel one, the user can lift air cooling mechanism off, rotate the slide to vertical state and connect on the telescopic link through the air intake, the user pulling this moment takes out the board, can make the slide to the direction removal that is close to the dust collecting box, thereby make the rubbish between two heating panels scrape out.

Drawings

Fig. 1 is a first schematic structural diagram of an overall housing according to an embodiment of the present application.

Fig. 2 is a schematic view of the overall structure of the housing according to the embodiment of the present application.

Fig. 3 is a schematic view of the connection relationship of the substrates.

Fig. 4 is a schematic view of the entire structure of the substrate.

Fig. 5 is a schematic view of the overall structure of the mounting plate.

Fig. 6 is a schematic view showing the connection relationship between the dust box and the housing.

Fig. 7 is a schematic view showing the connection relationship between the dust box and the dust removing mechanism.

Fig. 8 is a partially enlarged schematic view of a portion a in fig. 7.

Fig. 9 is a schematic view showing the connection relationship of the air cooling mechanism.

Reference numerals: 1. a housing; 11. a side plate; 12. a panel; 121. an air outlet; 13. a back plate; 131. an air inlet; 2. a substrate; 21. a first heat dissipation plate; 3. mounting a plate; 31. a connecting seat; 32. a second heat dissipation plate; 4. a dust collecting box; 41. a vertical plate; 42. a base plate; 43. a front plate; 5. a dust removal mechanism; 51. drawing the plate; 52. a cleaning mechanism; 521. a connecting rod; 522. a telescopic rod; 523. a slide plate; 524. connecting holes; 525. a rotating wheel; 6. an air cooling mechanism; 61. a connecting plate; 62. a fan.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses box cooling system for laser projector. Referring to fig. 1 and 2, the housing 1 includes a housing 1, and the housing 1 is horizontally disposed, and the housing 1 is used to protect electrical and optical components located in the housing 1. The housing 1 further comprises a front plate 12 and a back plate 13, wherein the front plate 12 and the back plate 13 are arranged oppositely, and the front plate 12 and the back plate 13 are vertically arranged and parallel to each other. The end portions of the base plate 2 abut against the side plate 11, the face plate 12, and the back plate 13, respectively. The front plate 12 and the back plate 13 are respectively arranged at two sides of the first heat dissipation plate 21 in the length direction.

Referring to fig. 3 and 4, two substrates 2 are disposed in the housing 1, the substrates 2 are horizontally disposed in the middle of the housing 1, cavities for mounting electrical components are formed above the substrate 2 on the upper side and below the substrate 2 on the lower side, and the two substrates 2 are arranged in the vertical direction. The substrate 2 is used for mounting electrical and optical components. Casing 1 includes two relative curb plates 11 in position, and 11 vertical settings of curb plate are provided with a plurality of bolts on 11 curb plates, and base plate 2 passes through bolt threaded connection with curb plate 11. The panel 12 is provided with an air outlet 121, the back plate 13 is provided with an air inlet 131, the air outlet 121 is flush with the air inlet 131, and the air outlet 121 and the air inlet 131 are communicated with the cavity between the first heat dissipation plate 21. The two substrates 2 are respectively disposed at upper and lower sides of the air inlet 131 and the air outlet 121.

Referring to fig. 4, a plurality of first heat dissipation plates 21 are arranged on one side of the substrate 2 close to the other substrate 2, the first heat dissipation plates 21 are perpendicular to the substrate 2, the first heat dissipation plates 21 are vertically arranged, and the length direction of the first heat dissipation plates 21 is parallel to the side plates 11. The first heat dissipation plates 21 on the two substrates 2 are in one-to-one correspondence and are mutually abutted. The side of the substrate 2 away from the first heat dissipation plate 21 is used for connecting the electrical components and the optical components. The first heat dissipation plates 21 are sequentially arranged at intervals along the linear direction, so that cavities are formed among the first heat dissipation plates 21. The substrate 2 and the first heat dissipation plate 21 are made of materials with good heat conductivity, the electrical element is mounted on the substrate 2, the substrate 2 can absorb heat emitted by the electrical element during operation, the first heat dissipation plate 21 is arranged on the substrate 2, the first heat dissipation plate 21 can absorb the heat of the substrate 2 and exchange heat with air, and the first heat dissipation plate 21 can increase the contact area of the substrate 2 and the air, so that the heat exchange speed is increased, and the effect of accelerating the cooling speed of the electrical element is achieved. The air cooling mechanism 6 is detachably connected to the back plate 13, and the air cooling mechanism 6 is used for blowing air to the first heat dissipation plate 21, so that the cooling speed of the first heat dissipation plate 21 is increased.

Referring to fig. 5, a plurality of mounting plates 3 are disposed on a side of the substrate 2 away from the first heat dissipation plate 21, the mounting plates 3 are perpendicular to the substrate 2, and the mounting plates 3 are used for connecting electrical components and optical components. Be provided with connecting seat 31 on the mounting panel 3, connecting seat 31 passes through bolt fixed connection with base plate 2, and the vertical setting of mounting panel 3 is on connecting seat 31. The mounting plate 3 and the connecting socket 31 are made of a material having good thermal conductivity. The side, far away from the electrical components, of the mounting plate 3 is provided with a plurality of second heat dissipation plates 32, the second heat dissipation plates 32 are parallel to the substrate 2, and the second heat dissipation plates 32 are sequentially arranged at intervals along the vertical direction. Through set up second heating panel 32 on mounting panel 3, make second heating panel 32 and the increase of air area of contact, and then make mounting panel 3 can carry out the heat exchange with the air fast, play the effect of quickening electrical component radiating rate.

Referring to fig. 6 and 7, a dust collecting box 4 is provided on the panel 12, and the dust collecting box 4 is used for collecting dust and flocculent garbage blown out from the air outlet 121. The dust collecting box 4 comprises two vertical plates 41, a bottom plate 42 and a front plate 43, wherein the bottom plate 42 is horizontally arranged, the two vertical plates 41 are respectively arranged at two opposite sides of the bottom plate 42, and the vertical plates 41 are vertical to the panel 12. A front plate 43 is disposed between the two risers 41, the front plate 43 being connected to the base plate 42, the front plate 43 being parallel to the face plate 12. The side of the riser 41 remote from the front panel 43 is adapted for detachable connection to the panel 12 to enable the dust bin 4 to be attached to the housing 1. The bottom plate 42 is arranged at the lower side of the air outlet 121, and the upper end of the front plate 43 is arranged higher than the air outlet 121, so that the probability of flying dust out of the dust collecting box 4 is reduced. When the dust collecting box 4 contains a large amount of dust, the user can detach the dust collecting box 4 and pour out the dust.

Referring to fig. 7, the front plate 43 is provided with a dust removing mechanism 5 for cleaning dust between the first heat radiating plates 21. The dust removing mechanism 5 comprises a drawing plate 51 and a plurality of cleaning mechanisms 52, the cleaning mechanisms 52 penetrate through and are slidably connected to the front plate 43, the cleaning mechanisms 52 are inserted into the shell 1 through the air outlet 121, one cleaning mechanism 52 is arranged in a cavity between every two first heat dissipation plates 21, the drawing plate 51 is arranged on one side, far away from the shell 1, of the front plate 43, the drawing plate 51 is connected with the end of each cleaning mechanism 52, a user can drive the cleaning mechanism 52 to move towards the direction close to the dust collection box 4 by pulling the drawing plate 51, and then the cleaning mechanisms 52 can scrape out flocculent garbage between the first heat dissipation plates 21.

Referring to fig. 7 and 8, the cleaning mechanism 52 includes a connecting rod 521, a telescopic rod 522 and a sliding plate 523, the connecting rod 521 and the telescopic rod 522 are respectively penetrated and slidably connected to the front plate 43, the connecting rod 521 and the telescopic rod 522 are respectively inserted into the cavity between the first heat dissipation plates 21, and one ends of the connecting rod 521 and the telescopic rod 522 close to the air outlet 121 are fixed on the drawing plate 51. The link 521 is located below the telescoping rod 522. The sliding plate 523 is rotatably connected to one end of the link 521 far away from the drawing plate 51, and the rotation axis of the sliding plate 523 is horizontal and vertical to the length direction of the link 521. The width of the sliding plate 523 is equal to the distance between the two first heat dissipation plates 21, and the sliding plate 523 can rotate to a horizontal state and is flatly laid on the substrate 2 positioned below, so that the air blown by the air cooling mechanism 6 can pass between the two substrates 2 and is blown out from the air outlet 121. When the pulling plate 51 abuts against the front plate 43, the expansion link 522 abuts against the air-cooling mechanism 6 and contracts, and the sliding plate 523 is positioned between the first heat dissipation plates 21 on the side closer to the air-cooling mechanism 6. The user can lift off the air cooling mechanism 6 to rotate the sliding plate 523 and detachably connect the sliding plate 523 to the telescopic rod 522, at the moment, the telescopic rod 522 is in a vertical state, the user can pull the plate 51 through pulling, the sliding plate 523 can move towards the direction close to the dust collection box 4 through the connecting rod 521, and the effect of cleaning the garbage between the first heat dissipation plates 21 is achieved.

Referring to fig. 8, the sliding plate 523 is provided with a connecting hole 524, the connecting hole 524 is a through hole, and the expansion link 522 is inserted into the connecting hole 524. User rotates slide 523, makes slide 523 rotate to the direction that is close to telescopic link 522 tip, and slide 523 can butt and push up telescopic link 522 tip to make telescopic link 522 shrink, insert to connecting hole 524 after telescopic link 522 tip, telescopic link 522 can extend naturally and run through slide 523, thereby makes the vertical connection of slide 523 on telescopic link 522. After cleaning up the rubbish between the first heat dissipation plates 21, a user can shrink the telescopic rod 522, so that the sliding plate 523 can rotate to be in a horizontal state, the cavity between the first heat dissipation plates 21 is in a smooth state, the user can install the air cooling mechanism 6, and the air cooling mechanism 6 cools the first heat dissipation plates 21.

Referring to fig. 8, a rotating wheel 525 is rotatably connected to one end of the telescopic rod 522 away from the pulling plate 51, and a rotating axis of the rotating wheel 525 is parallel to a rotating axis of the sliding plate 523. The runner 525 is adapted to abut the slide plate 523. When slide 523 rotates and the butt is on runner 525, runner 525 can rotate on slide 523 to reduce the probability of telescopic link 522 card on slide 523, make things convenient for the user to reach the effect that makes telescopic link 522 shrink through making slide 523 butt telescopic link 522.

Referring to fig. 9, the air cooling mechanism 6 includes a connecting plate 61 and a plurality of fans 62, the connecting plate 61 is detachably connected to the back plate 13, and the connecting plate 61 is used for blocking the air inlets 131. Fan 62 sets up on connecting plate 61, and fan 62 arranges in proper order along heating panel 21 array direction, has seted up a plurality of ventilation holes on the connecting plate 61, and fan 62 can blow in the air to the cavity between heating panel 21 to play the effect to the cooling of base plate 2 and heating panel 21.

The implementation principle of the embodiment of the application is as follows: through set up base plate 2 in casing 1, set up mounting panel 3 on base plate 2, the user can be through installing electrical component on mounting panel 3, make mounting panel 3 and electrical component carry out the heat exchange, through set up heating panel two 32 on mounting panel 3, make heating panel two 32 promote the area of mounting panel 3 and air contact, thereby promote the 3 radiating rate of mounting panel, through set up heating panel one 21 on base plate 2, make heating panel one 21 can carry out the heat exchange with the air, thereby promote base plate 2 radiating rate, through set up air-cooled mechanism 6 on casing 1, make air-cooled mechanism 6 can blow into in the cavity between heating panel one 21, thereby play the effect to the inside cooling of casing 1.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A box cooling system for a laser projector comprises a shell (1), and is characterized in that: two substrates (2) are arranged in a shell (1), the substrates (2) are horizontally arranged, the substrates (2) are arranged at intervals along the vertical direction, a cavity is formed between the two substrates (2), the shell (1) comprises two side plates (11), a panel (12) and a back plate (13), the side plates (11) are parallel to each other and are vertically arranged at two opposite sides of the substrates (2), the panel (12) and the back plate (13) are vertically arranged at two sides of the substrates (2) and are parallel to each other, the panel (12) and the back plate (13) are perpendicular to the side plates (11), the substrates (2) are abutted against the side plates (11), the panel (12) and the back plate (13), an air outlet (121) is formed in the panel (12), an air inlet (131) is formed in the back plate (13), the air outlet (121) and the air inlet (131) are communicated with the cavity between the two substrates (2), and an air cooling mechanism (6) is arranged on the back plate (13), the air cooling mechanism (6) is used for blowing air into the air inlet (131), one side, close to the other substrate (2), of the substrate (2) is provided with a plurality of first radiating plates (21), the first radiating plates (21) are sequentially arranged at intervals along the horizontal direction, the length direction of the first radiating plates (21) is parallel to the side plates (11), the positions of the first radiating plates (21) on the two substrates (2) are in one-to-one correspondence and are mutually abutted, one side, far away from the first radiating plates (21), of the substrate (2) is provided with a plurality of mounting plates (3), the mounting plates (3) are provided with connecting seats (31), the connecting seats (31) are detachably connected with the substrates (2), the mounting plates (3) are connected onto the substrate (2) through the connecting seats (31), the mounting plates (3) are perpendicular to the substrate (2), the mounting plates (3) are provided with a plurality of second radiating plates (32), and the second radiating plates (32) are arranged on one side of the mounting plates (3), the second heat dissipation plate (32) is parallel to the substrate (2), the second heat dissipation plate (32) is sequentially arranged at intervals along the vertical direction, the air cooling mechanism (6) comprises a connecting plate (61) and a plurality of fans (62), the connecting plate (61) is detachably connected to the back plate (13), the connecting plate (61) is used for plugging the air inlet (131), a plurality of ventilation holes are formed in the connecting plate (61), the fans (62) are sequentially arranged on the connecting plate (61) along the arrangement direction of the first heat dissipation plate (21), the fans (62) are used for blowing air to the substrate (2) and the first heat dissipation plate (21), the panel (12) is detachably connected with the dust collection box (4), the dust collection box (4) comprises two vertical plates (41), a bottom plate (42) and a front plate (43), the bottom plate (42) is horizontally arranged, the two vertical plates (41) are respectively arranged on two opposite sides of the bottom plate (42), and the vertical plates (41) are perpendicular to the panel (12), the front plate (43) is arranged between two vertical plates (41), the front plate (43) is connected with the bottom plate (42), one side of the vertical plate (41) far away from the front plate (43) is detachably connected with the panel (12), the dust removing mechanism (5) is arranged on the front plate (43), the dust removing mechanism (5) comprises a drawing plate (51) and a plurality of cleaning mechanisms (52), the cleaning mechanisms (52) penetrate through and are connected to the front plate (43) in a sliding mode, the cleaning mechanisms (52) are inserted into the shell (1) through the air outlet (121), a cleaning mechanism (52) is arranged between every two first heat dissipation plates (21), the drawing plate (51) is arranged on the front plate (43) and is far away from one side of the shell (1), one end, located outside the shell (1), of the cleaning mechanism (52) is connected to the drawing plate (51), and the cleaning mechanism (52) is used for cleaning garbage between the two first heat dissipation plates (21).

2. The heat dissipating system for a cabinet for a laser projector according to claim 1, wherein: clearance mechanism (52) include connecting rod (521), telescopic link (522) and slide (523), connecting rod (521) and telescopic link (522) run through front bezel (43), connecting rod (521) one end is connected on taking out board (51), the other end inserts to between heating panel (21), slide (523) rotate to be connected and keep away from on connecting rod (521) and take out one of board (51) and serve, slide (523) are used for rotating and can dismantle the connection on telescopic link (522), slide (523) are arranged in sliding in the cavity between heating panel (21) through taking out board (51) and connecting rod (521) drive.