CN213814251U - Projector - Google Patents

Abstract

The utility model relates to a projector equipment technical field provides a projector, include: the case assembly comprises a shell and a cover plate, wherein the shell is detachably connected with the cover plate, and the shell is provided with a liquid inlet and a liquid outlet; the light source module is arranged in the shell and comprises a light source component and a liquid cooling radiating component, and the liquid cooling radiating component is connected with the light source component; the optical engine module is arranged in the shell and is connected with the light source component; the cold row assembly is arranged in the shell and is close to the optical engine module; the liquid cooling heat dissipation assembly and the cold row assembly are connected with an external refrigerating device through a liquid inlet and a liquid outlet. The utility model discloses a liquid cooling radiating mode dispels the heat to the projector, only needs inlet and liquid outlet and the outside refrigerating plant intercommunication that sets up on the shell, and whole closure is stronger, has greatly expanded the range of application of projector, has avoided the influence of dust simultaneously to avoid luminance decay, prolonged the life of projector.

Description

Projector

Technical Field

The utility model relates to a projector equipment technical field, more specifically say, relate to a projector.

Background

A laser projector is a device capable of projecting an image or a video onto a screen, and it uses a laser (e.g., a semiconductor laser, a fiber laser, etc.) as a light source, and has advantages of small size, light weight, high reliability, long service life, low power consumption, etc., and is increasingly popular in the market. No matter what kind of laser instrument is adopted as the light source by the laser projector, all can produce the heat in the course of the work, lead to the light beam quality that the laser instrument produced to change, if can not dispel the heat in time, still can lead to the damage of laser instrument because overheated, and then lead to the damage of projector, consequently need dispel the heat to the projector.

At present, the projector is usually cooled by an air cooling heat dissipation mode, the case of the projector is provided with an air duct, and outside air can enter the case through the air duct, so that heat exchange between the inside and the outside of the case of the projector is realized. However, since air flows between the inside and the outside of the cabinet, external dust easily enters the projector and adheres to components such as an optical engine, which tends to cause luminance degradation, and in the serious case, may cause damage to the projector.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a projector to solve and adopt the air-cooled heat dissipation opportunity box leakproofness not high among the prior art, inside the holding leads to the dust to get into the projector, arouse the technical problem of projector damage.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a projector, include:

the case assembly comprises a shell and a cover plate, wherein the shell is detachably connected with the cover plate, and the shell is provided with a liquid inlet and a liquid outlet;

the light source module is arranged in the shell and comprises a light source component and a liquid cooling radiating component, and the liquid cooling radiating component is connected with the light source component;

the optical engine module is arranged in the shell and is connected with the light source component;

the cold row assembly is arranged in the shell and is close to the optical engine module;

the liquid cooling heat dissipation assembly and the cold row assembly are connected with an external refrigerating device through the liquid inlet and the liquid outlet.

In one embodiment, the cold row assembly includes a cold row disposed proximate to the optical engine module and a fan coupled to the cold row.

In one embodiment, the liquid-cooled heat dissipation assembly comprises a liquid-cooled plate, the liquid-cooled plate is provided with a liquid inlet pipe and a connecting pipe, and the liquid inlet pipe is communicated with the liquid inlet;

the cold row with the connecting pipe intercommunication, just the cold row pass through the drain pipe with the liquid outlet intercommunication.

In one embodiment, the liquid-cooled heat dissipation assembly comprises a liquid-cooled plate, the liquid-cooled plate is provided with a liquid inlet pipe, and the liquid inlet pipe is communicated with the liquid inlet;

the cold row with liquid cooling plate integrated into one piece, just the cold row pass through the drain pipe with the liquid outlet intercommunication.

In one embodiment, the liquid-cooled heat dissipation assembly comprises a liquid-cooled plate, the liquid-cooled plate is provided with a first liquid inlet pipe and a first liquid outlet pipe, the first liquid inlet pipe is communicated with the liquid inlet, and the first liquid outlet pipe is communicated with the liquid outlet;

the cold row pass through the second feed liquor pipe with the inlet intercommunication, just the cold row pass through the second liquid outlet with the liquid outlet intercommunication.

In one embodiment, the number of the liquid inlet and the liquid outlet is one, the first liquid inlet pipe and the second liquid inlet pipe are both communicated with the liquid inlet, and the first liquid outlet and the second liquid outlet are both communicated with the liquid outlet;

or the number of the liquid inlets and the number of the liquid outlets are two, the first liquid inlet and the first liquid outlet are respectively communicated with one liquid inlet and one liquid outlet, and the second liquid inlet and the second liquid outlet are respectively communicated with the other liquid inlet and the other liquid outlet.

In one embodiment, the housing is provided with a lens hole, and a dust cover is arranged in the housing at a position corresponding to the lens hole and abuts against the lens of the optical engine module.

In one embodiment, one end of the dust cover is fixedly connected with the housing, and the free end of the dust cover is an elastic ring made of an elastic material, and the elastic ring abuts against the lens of the optical engine module.

In one embodiment, the light source assembly is connected to the optical engine module through an optical fiber.

In one embodiment, a signal line is further connected between the light source assembly and the optical engine assembly, a signal port is further arranged on the housing, and the light source assembly is connected with the signal port;

and a strong electric wire is also connected between the light source assembly and the optical engine assembly, a strong electric port is also arranged on the shell, and the light source assembly is connected with the strong electric port.

The utility model provides a projector's beneficial effect lies in at least: the utility model discloses a liquid cooling radiating mode dispels the heat to light source subassembly and the optical engine module in the projector, need not to set up the wind channel at quick-witted incasement portion, also need not to set up the ventilation hole on the shell, only needs to communicate with outside refrigerating plant through inlet and the liquid outlet that sets up on the shell, and whole closure is stronger. Even in a closed space without air flow, the heat dissipation effect on the projector can be good, so that the application range of the projector is greatly expanded. Because the heat dissipation in-process need not in the outside air gets into the shell, and the whole closure of projector is stronger, therefore inside external dust can not get into the projector, greatly reduced the clean degree of difficulty of projector, simultaneously owing to avoided the influence of dust to avoid luminance decay, improved the life of optical engine module, and then prolonged the life of projector.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a first schematic structural diagram of a projector according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram according to an embodiment of the present invention;

fig. 3 is a third schematic structural diagram according to an embodiment of the present invention;

fig. 4 is a fourth schematic structural diagram according to an embodiment of the present invention;

fig. 5 is a schematic view of a second structure of a projector according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a third example of a projector according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a fourth structure of the projector according to the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

The light source subassembly of laser projector adopts the laser array as the light source, and this row of laser instrument includes a plurality of lasers, can produce a large amount of heats at the in-process of work, if can not in time dispel the heat, can lead to the temperature rising of laser instrument, and the light beam quality that the laser instrument produced can change, leads to laser projection's picture quality to descend. In addition, the heat generated by the laser also increases the overall temperature of the projector, thereby affecting other components in the projector, and in severe cases, causing damage to the projector, and thus requiring heat dissipation of the projector.

At present, the projector is generally cooled by air cooling, an air duct is arranged in a case of the projector, an air inlet and an air outlet are formed in a shell of the case, and external air enters the air duct in the case from the air inlet and leaves the case from the air outlet, so that internal heat is taken away. However, good ventilation conditions are required for heat dissipation through air cooling, and if the outside air does not flow, the heat dissipation effect is greatly reduced, which easily causes overheating of the projector. Because there is air convection in the inside and outside of the case, external dust easily enters the inside of the projector and adheres to parts such as the optical engine, on one hand, brightness attenuation is easily caused, on the other hand, heat dissipation is also affected, and in severe cases, an optical lens in the optical engine is burnt out, thereby causing damage to the projector.

Referring to fig. 1 and 2, in order to solve the problem that the existing projector has poor heat dissipation effect when using air cooling for heat dissipation, has low case sealing performance, and causes dust to enter the projector to cause damage to the projector, the present embodiment provides a brand new projector, which includes a case assembly 10, a light source module 20, an optical engine module 30, and a cold row assembly 40. The case assembly 10 includes a housing 11 and a cover plate 12, wherein the housing 11 forms an accommodating space for accommodating other components of the projector; the housing 11 and the cover plate 12 are detachably connected, the housing 11 is provided with a liquid inlet 101 and a liquid outlet 102, and the number of the liquid inlet 101 and the liquid outlet 102 can be set as required. The light source module 20 includes a light source module 21 and a liquid cooling heat dissipation module 22, the light source module 21 and the liquid cooling heat dissipation module 22 are both disposed in the housing 11, and the liquid cooling heat dissipation module 22 is connected to the light source module 21. The optical engine module 30 is disposed in the housing 11, the optical engine module 30 is connected to the light source module 21, and a light beam generated by the light source module 21 is emitted after passing through the optical engine module 30 for projection. The cold row assembly 40 is disposed in the housing 13 and close to the optical engine module 30, and is used for dissipating heat of the optical engine module 30. The liquid-cooled heat sink assembly 22 and the cold row assembly 30 are connected to the external refrigeration unit 50 through an inlet 101 and an outlet 102. The cooling device 50 is disposed outside the projector, and may be a part of the projector or may be additionally configured, and the cooling device 50 may be replaced as needed.

In the present embodiment, the liquid-cooled heat sink assembly 22 is in communication with the liquid inlet 101 and the liquid outlet 102 of the case assembly 10, so as to communicate with the refrigeration device 50, and the liquid is circulated between the liquid-cooled heat sink assembly 22 and the refrigeration device 50 to dissipate heat of the light source assembly 21. The cold row assembly 40 may be disposed close to the optical engine module 30, or disposed near the optical engine module 30, and the cold row assembly 40 is communicated with the liquid inlet 101 and the liquid outlet 102 of the chassis 10, so as to dissipate heat of the light source assembly 21 through circulation of liquid between the cold row assembly 40 and the refrigeration device 50. It should be understood that the liquid-cooled heat sink assembly 22 and the cold row assembly 40 may be connected to the same inlet 101 and outlet 102, or may be connected to different inlets 101 and outlets 102. The liquid may be selected as desired, and may be, for example, water, in which case the refrigeration unit 50 may be a water chiller. Of course, in other embodiments, the liquid may be other refrigerant substances, and is not limited to the above.

This embodiment dispels the heat through liquid cooling radiating mode to light source subassembly 21 and optical engine module 30 in the projector, need not to set up the wind channel in quick-witted case 10 inside, also need not to set up the ventilation hole on shell 11, only needs to communicate with outside refrigerating plant 50 through inlet 101 and liquid outlet 102 that set up on shell 11, and whole seal is stronger. Even in a closed space without air flow, the heat dissipation effect on the projector can be good, so that the application range of the projector is greatly expanded. Because the radiating process does not need outside air to enter the shell 11, and the overall sealing performance of the projector is stronger, outside dust can not enter the projector, the cleaning difficulty of the projector is greatly reduced, and meanwhile, because the influence of the dust is avoided, the brightness attenuation is avoided, the service life of the optical engine module 30 is prolonged, and further the service life of the projector is prolonged.

Referring to fig. 1, further, the cold row assembly 40 includes a cold row 41 and a fan 42, the cold row 41 is disposed near the optical engine module 30, and the fan 42 is connected to the cold row 41. On one hand, the fan 42 can perform auxiliary heat dissipation on the cold row 41; on the other hand, the fan 42 can also promote the air flow inside the housing 11, so that the temperature inside the projector is uniform. The arrangement of the cold row 41 and the liquid-cooled heat dissipating assembly 22 can be set as required.

Referring to fig. 1, in one embodiment, the cold row 41 is connected in series with the liquid-cooled heat sink assembly 22. At this time, the number of the liquid inlet 101 and the liquid outlet 102 is one, the liquid cooling heat dissipation assembly 22 includes a liquid cooling plate 221, the liquid cooling plate 221 is provided with a liquid inlet pipe 222 and a connecting pipe 223, the liquid inlet pipe 222 is communicated with the liquid inlet 101, the connecting pipe 223 is communicated with the cold row 41, the cold row 41 is communicated with the liquid outlet 102 through the liquid outlet pipe 43, at this time, the refrigerating liquid flowing out of the refrigerating apparatus 50 enters the liquid cooling plate 221 through the liquid inlet pipe 222 from the liquid inlet 101, then enters the cold row 41 through the connecting pipe 223, and flows back to the refrigerating apparatus 50 through the liquid outlet pipe 43, so that the heat can be dissipated from the light source assembly 21 and the optical engine module 30. The light source assembly 21 and the optical engine module 30 are simultaneously cooled by one cooling device 50, which is beneficial to reducing the failure rate of liquid cooling and improving the internal cooling efficiency of the projector.

Referring to fig. 5, in one embodiment, the cold row 41 is connected in parallel with the liquid-cooled heat sink assembly 22. At this time, the number of the liquid inlet 101 and the liquid outlet 102 is one, the liquid-cooled heat dissipation assembly 22 includes a liquid-cooled plate 221, the liquid-cooled plate 221 is provided with a liquid inlet pipe 222, and the liquid inlet pipe 222 is communicated with the liquid inlet 101. The cold row 41 is integrally formed with the liquid cooling plate 221, and the cold row 41 is communicated with the liquid outlet 102 through the liquid outlet pipe 43. The refrigerant liquid flowing out of the refrigeration device 50 enters the liquid cooling plate 221 and the cold row 41 from the liquid inlet 101 through the liquid inlet pipe 222, and flows back to the refrigeration device 50 through the liquid outlet pipe 43, so that the heat of the light source assembly 21 and the optical engine module 30 can be dissipated. The light source assembly 21 and the optical engine module 30 are simultaneously cooled by one cooling device 50, which is beneficial to reducing the failure rate of liquid cooling and improving the internal cooling efficiency of the projector.

Referring to fig. 6, in one embodiment, the cold drain 41 and the liquid-cooled heat dissipating assembly 22 are separately arranged, and the number of the liquid inlet 101 and the liquid outlet 102 is one. The liquid cooling heat dissipation assembly 22 includes a liquid cooling plate 221, the liquid cooling plate 221 is provided with a first liquid inlet pipe 224 and a first liquid outlet pipe 225, the first liquid inlet pipe 224 is communicated with the liquid inlet 101, and the first liquid outlet pipe 225 is communicated with the liquid outlet 102. The cold row 41 is in communication with the liquid inlet 101 through a second liquid inlet pipe 44, and the cold row 41 is in communication with the liquid outlet 102 through a second liquid outlet pipe 45. At this time, the refrigerating device 50 is communicated with the liquid inlet 101 and the liquid outlet 102, and the light source module 21 and the optical engine module 30 are cooled by one refrigerating device 50. The light source assembly 21 and the optical engine module 30 are simultaneously cooled by one cooling device 50, which is beneficial to reducing the failure rate of liquid cooling and improving the internal cooling efficiency of the projector.

Referring to fig. 7, in an embodiment, the cold drain 41 and the liquid-cooled heat dissipating assembly 22 are separately arranged in a refrigerating manner, and the number of the liquid inlets 101 and the number of the liquid outlets 102 are two. The liquid-cooled heat dissipation assembly 22 includes a liquid-cooled plate 221, the liquid-cooled plate 221 has a first liquid inlet pipe 224 and a first liquid outlet pipe 225, the first liquid inlet pipe 224 is communicated with one liquid inlet 101, and the first liquid outlet pipe 225 is communicated with one liquid outlet 102. The cold row 41 is communicated with another liquid inlet 101 through a second liquid inlet pipe 44, and the cold row 41 is communicated with another liquid outlet 102 through a second liquid outlet pipe 45. At this time, the number of the refrigeration devices 50 is two, each refrigeration device 50 is respectively communicated with one liquid inlet 101 and one liquid outlet 102, and the two refrigeration devices 50 are used for respectively dissipating heat of the light source assembly 21 and the optical engine module 30, which is beneficial to improving heat dissipation efficiency.

Referring to fig. 2 and 3, further, the housing 11 is provided with a lens hole 103, a dust cover 13 is disposed in the housing 11 at a position corresponding to the lens hole 103, and the dust cover 13 abuts against the lens of the optical engine module 30. The arrangement of the lens hole 103 enables the light beam of the projector to be emitted to the outside of the projector, and the arrangement of the dust cover 13 can ensure the sealing performance of the case assembly 10 and avoid the entering of external dust. In this embodiment, one end of the dust cover 13 is fixedly connected to the housing 11, the free end of the dust cover 13 is an elastic ring made of an elastic material, the elastic ring abuts against the lens of the optical engine module 30, and the elastic ring can extend and contract according to the size of the lens and can completely wrap the lens to ensure the sealing performance. In order to protect the lens and further increase the sealing performance, a transparent sealing sheet can be arranged at the lens hole 103, so that the light beam can be ensured to pass through smoothly, and the sealing effect is achieved.

Referring to fig. 1, further, the light source assembly 21 is a laser light source assembly, and the light source assembly 21 is connected to the optical engine module 30 through an optical fiber 23 to ensure that the laser beam generated by the light source assembly can be transmitted to the optical engine module 30 through the optical fiber 23. Of course, in other embodiments, the light source module 21 may also be other types of light sources, and is not limited to the above laser light source. Referring to fig. 1 and 4, a signal line 24 and a power line 25 are connected between the light source module 21 and the optical engine module 30, a signal port 104 and a power port 105 are further disposed on the housing, and the light source module 21 is connected to the signal port 104 and the power port 105. In the present embodiment, the lens hole 103 is disposed on one side surface of the housing 11, and the liquid inlet 101, the liquid outlet 102, the signal port 104 and the strong electric port 105 are disposed on the other side surface of the housing 11, and are opposite to the surface on which the lens hole 103 is disposed.

The projector provided by the embodiment has the beneficial effects that:

(1) this embodiment dispels the heat through liquid cooling radiating mode to light source subassembly 21 and optical engine module 30 in the projector, need not to set up the wind channel in quick-witted case 10 is inside, also need not to set up the ventilation hole on shell 11, only need through inlet 101 and the liquid outlet 102 that sets up on the shell 11 and outside refrigerating plant 50 intercommunication, whole seal is stronger, even if in the enclosure space that does not have the air flow, also can have good radiating effect to the projector to the range of application of projector has greatly been expanded.

(2) Because the radiating process does not need outside air to enter the shell 11, and the overall sealing performance of the projector is stronger, outside dust can not enter the projector, the cleaning difficulty of the projector is greatly reduced, and meanwhile, because the influence of the dust is avoided, the brightness attenuation is avoided, the service life of the optical engine module 30 is prolonged, and further the service life of the projector is prolonged.

(3) The parts of the existing projector are usually directly fixed in the projector, and the parts need to be disassembled in layers when being replaced, so that the disassembly and the maintenance are difficult; the projector of the embodiment adopts a modular installation mode, so that the projector is convenient to install and disassemble, and is convenient to produce, maintain and clean.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A projector, comprising:

the case assembly comprises a shell and a cover plate, wherein the shell is detachably connected with the cover plate, and the shell is provided with a liquid inlet and a liquid outlet;

the light source module is arranged in the shell and comprises a light source component and a liquid cooling radiating component, and the liquid cooling radiating component is connected with the light source component;

the optical engine module is arranged in the shell and is connected with the light source component;

the cold row assembly is arranged in the shell and is close to the optical engine module;

the liquid cooling heat dissipation assembly and the cold row assembly are connected with an external refrigerating device through the liquid inlet and the liquid outlet.

2. The projector as defined in claim 1 wherein the cold row assembly includes a cold row disposed proximate to the optical engine module and a fan coupled to the cold row.

3. The projector as defined in claim 2, wherein the liquid-cooled heat dissipation assembly comprises a liquid-cooled plate, the liquid-cooled plate having a liquid inlet pipe and a connecting pipe, the liquid inlet pipe being in communication with the liquid inlet;

the cold row with the connecting pipe intercommunication, just the cold row pass through the drain pipe with the liquid outlet intercommunication.

4. The projector as defined in claim 2, wherein the liquid-cooled heat dissipation assembly comprises a liquid-cooled plate, the liquid-cooled plate having a liquid inlet pipe, the liquid inlet pipe communicating with the liquid inlet;

the cold row with liquid cooling plate integrated into one piece, just the cold row pass through the drain pipe with the liquid outlet intercommunication.

5. The projector as defined in claim 2, wherein the liquid-cooled heat dissipation assembly comprises a liquid-cooled plate, the liquid-cooled plate having a first liquid inlet tube and a first liquid outlet tube, the first liquid inlet tube being in communication with the liquid inlet, the first liquid outlet tube being in communication with the liquid outlet;

the cold row pass through the second feed liquor pipe with the inlet intercommunication, just the cold row pass through the second liquid outlet with the liquid outlet intercommunication.

6. The projector as defined in claim 5, wherein the number of the liquid inlet and the liquid outlet is one, the first liquid inlet pipe and the second liquid inlet pipe are both in communication with the liquid inlet, and the first liquid outlet and the second liquid outlet are both in communication with the liquid outlet;

or the number of the liquid inlets and the number of the liquid outlets are two, the first liquid inlet and the first liquid outlet are respectively communicated with one liquid inlet and one liquid outlet, and the second liquid inlet and the second liquid outlet are respectively communicated with the other liquid inlet and the other liquid outlet.

7. The projector as claimed in claim 1, wherein the housing defines a lens hole, and a dust cover is disposed in the housing at a position corresponding to the lens hole and abutting against the lens of the optical engine module.

8. The projector as defined in claim 7 wherein one end of the dust cover is fixedly connected to the housing, and a free end of the dust cover is an elastic ring made of an elastic material, and the elastic ring abuts against a lens of the optical engine module.

9. The projector as claimed in any one of claims 1 to 8, wherein the light source module is connected to the optical engine module through an optical fiber.

10. The projector as claimed in any one of claims 1 to 8, wherein a signal line is further connected between the light source module and the optical engine module, the housing is further provided with a signal port, and the light source module is connected to the signal port;

and a strong electric wire is also connected between the light source assembly and the optical engine assembly, a strong electric port is also arranged on the shell, and the light source assembly is connected with the strong electric port.

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