Heat dissipation structure and projector

Abstract

The utility model discloses a heat dissipation structure and projector, wherein, a kind of heat dissipation structure, comprising: heat dissipation fan, multi-angle flow guide heat dissipation mechanism and auxiliary ventilation mechanism. Multi-angle flow guide heat dissipation mechanism is set at the air outlet of heat dissipation fan, and multi-angle flow guide heat dissipation mechanism includes flow guide pipe and multiple first heat exchange pipes, and flow guide pipe is fixedly set at the air outlet of heat dissipation fan, and multiple first heat exchange pipes are evenly fixedly inserted and set in flow guide pipe. Auxiliary ventilation mechanism is set at one side of heat dissipation fan, and auxiliary ventilation mechanism includes ventilation fan, auxiliary ventilation pipe and multiple second heat exchange pipes, and auxiliary ventilation pipe is fixedly set at the air outlet of ventilation fan. The utility model discloses a heat dissipation structure and projector by setting multi-angle flow guide heat dissipation mechanism and auxiliary ventilation mechanism, improve the uniformity that heat dissipation structure carries out ventilation heat dissipation to projector, improve the practical application effect of heat dissipation structure.

Description

Technical Field

[0001] This utility model belongs to the field of projector heat dissipation technology, specifically relating to a heat dissipation structure and a projector. Background Technology

[0002] A projector is an electronic device that projects images or videos onto a screen using an optical system. It mainly consists of a light source, an optical system, an imaging element, and a power module. In practical applications, the light source system and the power module generate heat. Because the internal structure of a projector is relatively compact, it is prone to overheating. To ensure the stability of the projector's operation, a heat dissipation structure is usually required to cool the projector.

[0003] Currently, the most common heat dissipation structure for projectors mainly uses cooling fans. These fans dissipate heat by blowing air onto the light source system or power module. While such cooling fans can effectively cool the projector, they also have poor heat dissipation uniformity, making the projector prone to localized overheating during actual use.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a heat dissipation structure and a projector.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a heat dissipation structure and a projector that can improve the heat dissipation uniformity of the projector's heat dissipation structure.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides a heat dissipation structure, including: a cooling fan, a multi-angle airflow cooling mechanism, and an auxiliary ventilation mechanism.

[0008] The multi-angle airflow cooling mechanism is located at the air outlet of the cooling fan. The multi-angle airflow cooling mechanism includes a guide pipe and multiple sets of first heat exchange pipes. The guide pipe is fixedly located at the air outlet of the cooling fan, and the multiple sets of first heat exchange pipes are evenly and fixedly inserted into the guide pipe.

[0009] The auxiliary ventilation mechanism is located on one side of the cooling fan. The auxiliary ventilation mechanism includes a ventilation fan, an auxiliary ventilation pipe, and multiple sets of second heat exchange pipes. The auxiliary ventilation pipe is fixedly installed at the air outlet of the ventilation fan, and the multiple sets of second heat exchange pipes are all inserted into the auxiliary ventilation pipe.

[0010] In one or more embodiments of this utility model, the guide pipe includes an air intake pipe body, a first flow diffuser pipe body, and a second flow diffuser pipe body, wherein the first flow diffuser pipe body and the second flow diffuser pipe body are respectively fixedly disposed at both ends of the air intake pipe body.

[0011] In one or more embodiments of this utility model, a first air outlet is provided on the side of the exhaust duct body away from the cooling fan. Both the first and second air-expanding duct bodies are connected to the exhaust duct body, and a second and a third air outlet are respectively provided at the ends of the first and second air-expanding duct bodies away from the exhaust duct body. By providing the first, second, and third air outlets, simultaneous airflow cooling can be applied to all components within the projector, improving the uniformity of ventilation and cooling for all components within the projector.

[0012] In one or more embodiments of this utility model, dust filters are fixedly installed on both sides of the ventilation fan. The dust filters provide dust protection for the ventilation fan. The auxiliary ventilation duct includes a ventilation duct body and a diffuser duct body, which are integrally formed. The ventilation duct body and the diffuser duct body can provide auxiliary airflow for heat dissipation of other components inside the projector.

[0013] In one or more embodiments of this utility model, an air inlet is provided on one side of the ventilation duct, and the air inlet is connected to the air outlet of the ventilation fan. A fourth air outlet is provided on the side of the ventilation duct opposite to the ventilation fan, and a fifth air outlet is provided on one side of the diffuser duct. The fourth and fifth air outlets are located on the same horizontal plane of the auxiliary ventilation duct. The airflow generated during the operation of the ventilation fan can be diffused in multiple ranges through the fourth and fifth air outlets, improving the uniformity of ventilation and heat dissipation.

[0014] In one or more embodiments of this utility model, each of the multiple sets of first heat exchange tubes and second heat exchange tubes is provided with a heat exchange cavity and a condensation reflux cavity. The heat exchange cavity and the condensation reflux cavity are distributed from bottom to top within the multiple sets of first heat exchange tubes and second heat exchange tubes.

[0015] In one or more embodiments of this utility model, the heat exchange chamber is filled with heat exchange liquid, and the lower bottom surface of the condensation reflux chamber is inclined. This facilitates the outflow of the heat exchange liquid from the condensation reflux chamber along the lower horizontal end. Each of the multiple sets of first and second heat exchange tubes has a filling nozzle fixedly connected to its top, and the filling nozzle communicates with the condensation reflux chamber. This facilitates the addition of heat exchange fluid into the condensation reflux chamber through the filling nozzle.

[0016] In one or more embodiments of this utility model, each of the multiple sets of first and second heat exchange tubes is provided with a gas delivery channel and a liquid return channel. This allows the gas, after being heated and vaporized by the heat exchange liquid, to be transported along the gas delivery channel to the condensation and return chamber. The two ends of the gas delivery channel and the liquid return channel are respectively connected to the heat exchange chamber and the condensation and return chamber, and the liquid return channel is located at the lower horizontal end of the condensation and return chamber. This facilitates the return of the condensed and liquefied heat exchange fluid in the condensation and return chamber back into the heat exchange chamber along the liquid return channel.

[0017] This utility model also provides a projector, including a heat dissipation structure, and further including a lower housing, an upper housing, a power module, a light source module and an imaging module. The upper housing is fixedly sleeved on top of the lower housing and cooperates with the lower housing to form a projector shell. The power module, light source module and imaging module are all fixedly installed inside the projector shell.

[0018] In one or more embodiments of this utility model, the cooling fan is fixedly installed inside the projector housing, the air guide tube is sleeved on the outside of the power module, and the outer side of the lower housing has an air inlet corresponding to the cooling fan. This facilitates the delivery of outside air into the projector housing through the air inlet. The ventilation fan is fixedly mounted on the projector housing, and the auxiliary ventilation tube is arranged between the imaging module and the upper housing.

[0019] Compared with the prior art, the heat dissipation structure and projector disclosed in this utility model improve the uniformity of heat dissipation of the projector by setting up a multi-angle airflow heat dissipation mechanism and an auxiliary ventilation mechanism, thereby improving the actual application effect of the heat dissipation structure. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the heat dissipation structure and the projector assembly structure in one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the heat dissipation structure in one embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the heat dissipation structure from another angle in one embodiment of the present invention;

[0024] Figure 4This is a cross-sectional view of the heat dissipation structure in one embodiment of the present invention;

[0025] Figure 5 for Figure 4 Schematic diagram of the structure at point A in the middle;

[0026] Figure 6 This is a schematic diagram of the projector assembly in one embodiment of the present invention.

[0027] Explanation of key figure labels:

[0028] 1-Cooling fan, 2-Multi-angle airflow cooling mechanism, 201-Airflow guide pipe, 2011-Air intake pipe body, 2012-First airflow diffuser body, 2013-Second airflow diffuser body, 202-First heat exchange pipe, 3-Auxiliary ventilation mechanism, 301-Ventilation fan, 302-Auxiliary ventilation pipe, 3021-Ventilation pipe body, 3022-Diffuser body, 303-Second heat exchange pipe, 304-Dust filter, 4-Liquid filler nozzle, 5-Lower casing, 6-Upper casing, 7-Power module, 8-Light source module, 9-Imaging module. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0030] like Figures 1 to 5 As shown, the heat dissipation structure in one embodiment of this utility model includes: a cooling fan 1, a multi-angle airflow guiding heat dissipation mechanism 2, and an auxiliary ventilation mechanism 3. In practical applications, the multi-angle airflow guiding heat dissipation mechanism 2 can guide and diffuse the airflow generated during the operation of the cooling fan 1, and the auxiliary ventilation mechanism 3 can provide auxiliary ventilation and heat dissipation, ensuring the uniformity of ventilation and heat dissipation of the heat dissipation structure.

[0031] Specifically, cooling fan 1 is a TAI JU 12038 model fan with a rated voltage of 24V.

[0032] like Figures 1 to 3As shown, the multi-angle airflow guiding and heat dissipation mechanism 2 is disposed at the air outlet of the cooling fan 1. The multi-angle airflow guiding and heat dissipation mechanism 2 includes a guide pipe 201 and multiple sets of first heat exchange pipes 202. The guide pipe 201 is fixedly disposed at the air outlet of the cooling fan 1. The airflow generated during the operation of the cooling fan 1 is guided and diffused through the guide pipe 201. The airflow within the guide pipe 201 can be heat exchanged through the multiple sets of first heat exchange pipes 202. At the same time, the airflow transported within the guide pipe 201 can be auxiliaryly diverted and transported through the multiple sets of first heat exchange pipes 202.

[0033] like Figures 1 to 3 As shown, the guide pipe 201 includes an air intake pipe body 2011, a first flow diffuser pipe body 2012, and a second flow diffuser pipe body 2013. The first flow diffuser pipe body 2012 and the second flow diffuser pipe body 2013 are respectively fixedly disposed at both ends of the air intake pipe body 2011.

[0034] The exhaust duct 2011 has a first air outlet on the side facing away from the cooling fan 1. The first diffuser duct 2012 and the second diffuser duct 2013 are both connected to the exhaust duct 2011, and the ends of the first diffuser duct 2012 and the second diffuser duct 2013 facing away from the exhaust duct 2011 have a second air outlet and a third air outlet, respectively. By setting the first, second, and third air outlets, the various components inside the projector can be simultaneously cooled by blowing air, improving the uniformity of ventilation and cooling for the components inside the projector.

[0035] like Figures 2 to 3 As shown, multiple sets of first heat exchange tubes 202 are uniformly and fixedly inserted into the guide tube 201. The airflow transported in the guide tube 201 can be heat exchanged and diverted through the multiple sets of first heat exchange tubes 202.

[0036] like Figures 2 to 3 As shown, the auxiliary ventilation mechanism 3 is located on one side of the cooling fan 1. The auxiliary ventilation mechanism 3 includes a ventilation fan 301, an auxiliary ventilation duct 302, and multiple sets of second heat exchange tubes 303. Dust filters 304 are fixedly installed on both sides of the ventilation fan 301. The dust filters 304 provide dust protection for the ventilation fan 301. The auxiliary ventilation duct 302 is fixedly installed at the air outlet of the ventilation fan 301, and guides and diffuses the airflow generated during the operation of the ventilation fan 301.

[0037] Specifically, the ventilation fan 301 is a TAI JU 12038 model fan with a rated voltage of 24V.

[0038] like Figures 2 to 3As shown, the auxiliary ventilation duct 302 includes two parts: a ventilation duct body 3021 and a diffuser body 3022, which are integrally formed. The ventilation duct body 3021 and the diffuser body 3022 can provide auxiliary airflow for heat dissipation of other components inside the projector.

[0039] like Figures 2 to 3 As shown, an air inlet is provided on one side of the ventilation duct 3021, which is connected to the air outlet of the ventilation fan 301. A fourth air outlet is provided on the side of the ventilation duct 3021 opposite to the ventilation fan 301, and a fifth air outlet is provided on one side of the diffuser duct 3022. The fourth and fifth air outlets are located on the same horizontal plane of the auxiliary ventilation duct 302. Through the fourth and fifth air outlets, the airflow generated during the operation of the ventilation fan 301 can be diffused over a multi-range, improving the uniformity of ventilation and heat dissipation.

[0040] like Figures 2 to 3 As shown, multiple sets of second heat exchange pipes 303 are inserted into the auxiliary ventilation pipe 302. The airflow in the ventilation pipe body 3021 is exchanged and diverted through the multiple sets of second heat exchange pipes 303.

[0041] like Figures 4 to 5 As shown, each of the multiple sets of first heat exchange tubes 202 and second heat exchange tubes 303 has a heat exchange chamber and a condensation reflux chamber. The heat exchange chamber and the condensation reflux chamber are distributed from bottom to top within the multiple sets of first heat exchange tubes 202 and second heat exchange tubes 303.

[0042] like Figures 4 to 5 As shown, the heat exchange chamber is filled with heat exchange fluid, and the lower surface of the condensation reflux chamber is inclined. This facilitates the outflow of the heat exchange fluid from the condensation reflux chamber along the lower horizontal end. Each of the multiple sets of first heat exchange tubes 202 and second heat exchange tubes 303 has a fixedly connected filling nozzle 4, which communicates with the condensation reflux chamber. This allows heat exchange fluid to be added to the condensation reflux chamber through the filling nozzle 4.

[0043] Specifically, the heat exchange liquid can be circulating water, ethanol, or ether.

[0044] Each of the multiple sets of first heat exchange tubes 202 and second heat exchange tubes 303 is equipped with a gas delivery channel and a liquid return channel. This allows the gas produced by the vaporization of the heat exchange liquid to be transported along the gas delivery channel to the condensation return chamber.

[0045] Specifically, the gas delivery channel and the liquid return channel are connected at both ends to the heat exchange chamber and the condensation return chamber, respectively, with the liquid return channel located at the lower horizontal end of the condensation return chamber. This facilitates the return of the condensed and liquefied heat exchange fluid from the condensation return chamber back into the heat exchange chamber via the liquid return channel.

[0046] like Figure 6 As shown, a projector includes a lower housing 5, an upper housing 6, a power module 7, a light source module 8, and an imaging module 9. The upper housing 6 is fixedly fitted on top of the lower housing 5 and cooperates with the lower housing 5 to form the projector housing. The power module 7, the light source module 8, and the imaging module 9 are all fixedly installed inside the projector housing.

[0047] Among them, the power supply module 7, the light source module 8 and the imaging module 9 are all existing technologies, and will not be described in detail here.

[0048] like Figure 1 As shown, the cooling fan 1 is fixedly installed inside the projector housing, the air guide pipe 201 is sleeved on the outside of the power module 7, and the outer side of the lower housing 5 has an air intake hole corresponding to the cooling fan 1. This facilitates the delivery of outside air into the projector housing through the air intake hole. The ventilation fan 301 is fixedly mounted on the projector housing, and the auxiliary ventilation pipe 302 is arranged between the imaging module 9 and the upper housing 6.

[0049] In practical use, by controlling the operation of the cooling fan 1, outside air can be delivered to the guide pipe 201 through the air inlet. After the outside air passes through multiple sets of first heat exchange pipes 202 for heat exchange and diversion, it can be discharged through the first air outlet, the second air outlet and the third air outlet, thereby enabling synchronous cooling of the power module 7, the light source module 8 and the imaging module 9.

[0050] In addition, by controlling the operation of the ventilation fan 301, outside air can be filtered by the dust filter 304 and then delivered into the auxiliary ventilation duct 302. After heat exchange or diversion by multiple sets of second heat exchange tubes 303, the air is discharged along the fourth and fifth air outlets, thereby providing auxiliary ventilation and heat dissipation for the imaging module 9 and improving the uniformity of ventilation and heat dissipation for various components inside the projector.

[0051] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat dissipation structure, characterized in that, include: Cooling fan; A multi-angle airflow cooling mechanism is provided at the air outlet of the cooling fan. The multi-angle airflow cooling mechanism includes a guide pipe and multiple sets of first heat exchange pipes. The guide pipe is fixedly provided at the air outlet of the cooling fan, and the multiple sets of first heat exchange pipes are uniformly and fixedly inserted into the guide pipe. An auxiliary ventilation mechanism is provided on one side of the cooling fan. The auxiliary ventilation mechanism includes a ventilation fan, an auxiliary ventilation pipe, and multiple sets of second heat exchange pipes. The auxiliary ventilation pipe is fixedly installed at the air outlet of the ventilation fan, and the multiple sets of second heat exchange pipes are all inserted into the auxiliary ventilation pipe.

2. The heat dissipation structure according to claim 1, characterized in that, The guide pipe includes an air intake pipe body, a first flow diffuser pipe body, and a second flow diffuser pipe body, which are respectively fixedly installed at both ends of the air intake pipe body.

3. The heat dissipation structure according to claim 2, characterized in that, The air duct body has a first air outlet on the side away from the cooling fan. The first and second flow-expanding pipe bodies are both connected to the air duct body, and the first and second flow-expanding pipe bodies have a second air outlet and a third air outlet on the side away from the air duct body, respectively.

4. The heat dissipation structure according to claim 3, characterized in that, Dust filters are fixedly installed on both sides of the ventilation fan. The auxiliary ventilation pipe includes two parts: a ventilation pipe body and a diffuser pipe body. The ventilation pipe body and the diffuser pipe body are integrally formed.

5. The heat dissipation structure according to claim 4, characterized in that, An air inlet is provided on one side of the ventilation duct, which is connected to the air outlet of the ventilation fan. A fourth air outlet is provided on the side of the ventilation duct away from the ventilation fan. A fifth air outlet is provided on one side of the diffuser duct. The fourth and fifth air outlets are located on the same horizontal plane as the auxiliary ventilation duct.

6. The heat dissipation structure according to claim 5, characterized in that, Each of the multiple sets of first and second heat exchange tubes is provided with a heat exchange chamber and a condensation reflux chamber, which are distributed from bottom to top within the multiple sets of first and second heat exchange tubes.

7. The heat dissipation structure according to claim 6, characterized in that, The heat exchange chamber is filled with heat exchange liquid, and the bottom surface of the condensation reflux chamber is inclined. The tops of the multiple sets of first heat exchange tubes and second heat exchange tubes are all fixedly connected with liquid inlets, and the liquid inlets are connected to the condensation reflux chamber.

8. The heat dissipation structure according to claim 7, characterized in that, Each of the multiple sets of first and second heat exchange tubes is provided with a gas delivery channel and a liquid return channel. The two ends of the gas delivery channel and the liquid return channel are respectively connected to the heat exchange chamber and the condensation return chamber, and the liquid return channel is located at the low horizontal end of the condensation return chamber.

9. A projector, comprising the heat dissipation structure as described in claim 8, characterized in that, It also includes a lower housing, an upper housing, a power module, a light source module, and an imaging module. The upper housing is fixedly fitted on top of the lower housing and cooperates with the lower housing to form the projector housing. The power module, light source module, and imaging module are all fixedly installed inside the projector housing.

10. The projector according to claim 9, characterized in that, The cooling fan is fixedly installed inside the projector housing, the air guide tube is sleeved on the outside of the power module, the outer side of the lower housing has an air intake hole corresponding to the cooling fan, the ventilation fan is fixedly mounted on the projector housing, and the auxiliary ventilation tube is arranged between the imaging module and the upper housing.

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