Heat dissipation structure of projector

Abstract

According to the heat dissipation structure of the projector provided by the utility model, the heat dissipation fan works, so that external cold air enters the bearing shell through the second air inlet holes and the first air inlet holes. The external projector body is cooled, hot air generated in the cooling process is discharged out of the receiving shell through the S-shaped heat dissipation air channel and the heat dissipation holes, and therefore sufficient cooling operation is achieved. When the cooling fan is in a shutdown state, each first air inlet hole is correspondingly communicated with a part of one second air inlet hole, so that the amount of dust entering the receiving shell in an idle state is reduced. Suction force generated by working of the cooling fan can drive the sliding plate to move along the sliding groove through the wind shielding connecting plate, so that the sliding plate abuts against the inner wall of the end, away from the extension spring, of the sliding groove. Therefore, each first air inlet hole is correspondingly communicated with all the second air inlet holes, the air inlet amount is increased, and the heat dissipation effect of the heat dissipation structure of the projector is improved. The heat dissipation structure of the projector can be adjusted according to the heat dissipation requirement, and the multi-stage heat dissipation requirement can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of projector heat dissipation, in particular to the heat dissipation structure of projector. BACKGROUND

[0002] The projector, also known as a projector, is a device that can project images or videos onto a screen. It can be connected to computers, VCDs, DVDs, BDs, game consoles, DVs, etc. through different interfaces to play corresponding video signals. Projectors are widely used in homes, offices, schools and entertainment venues. According to different working methods, there are different types such as CRT, LCD, DLP and 3LCD. According to the usage, the projector is divided into desktop projector, portable projector, floor type projector, reflective projector, transmissive projector, single function projector, multifunctional projector, intelligent projector and touch interactive projector.

[0003] However, the traditional projector, such as the patent with application number CN202321134965.0 and the invention name of high-efficiency heat dissipation projector, cannot adjust the heat dissipation performance according to the heat dissipation demand, and cannot meet the multi-stage heat dissipation demand. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide a heat dissipation structure of projector to solve the technical problem that the heat dissipation performance of the traditional projector cannot be adjusted according to the heat dissipation demand, and cannot meet the multi-stage heat dissipation demand.

[0005] A heat dissipation structure of projector, the heat dissipation structure of projector comprises: a receiving shell, a receiving table, a heat dissipation fan, a heat dissipation adjusting mechanism and two isolation heat conduction plates;

[0006] One end of the receiving shell is provided with a projection hole, and the other end of the receiving shell is uniformly provided with a plurality of heat dissipation holes; a threading hole is formed in the part of the top of the receiving shell close to the projection hole, a sliding groove is formed in the top of the receiving shell, and a sliding opening is formed in the end of the sliding groove away from the threading hole; a plurality of first air inlet holes are uniformly arranged in an array in the part of the sliding groove away from the sliding opening;

[0007] The receiving table is arranged in the receiving shell and connected with the inner wall of the receiving shell, and the receiving table is arranged close to the projection hole; a plurality of connecting screw holes are formed in the receiving table for connecting with the projector body outside;

[0008] The heat dissipation fan is arranged in the receiving shell and connected with the inner wall of the receiving shell, and the heat dissipation fan is arranged close to each heat dissipation hole;

[0009] The heat dissipation adjusting mechanism comprises a tension spring, a sliding plate and a wind blocking connecting plate; the tension spring is accommodated in the sliding groove, one end of the tension spring is connected with the inner side wall of the sliding groove close to the projection hole; the sliding plate is matched with the sliding groove, the sliding plate is inserted in the sliding groove and is in sliding connection with the receiving shell; the other end of the tension spring is connected with one end of the sliding plate; the wind blocking connecting plate is perpendicularly connected with the end of the sliding plate away from the tension spring; the wind blocking connecting plate is matched with the sliding hole, the wind blocking connecting plate is inserted in the sliding hole and is in sliding connection with the receiving shell; the wind blocking connecting plate is partially inserted into the receiving shell; the part of the sliding plate away from the wind blocking connecting plate is uniformly provided with a plurality of second air inlet holes in an array; the first air inlet hole and the second air inlet hole are of the same size; in the stop state of the heat dissipation fan, each first air inlet hole is in communication with the part of the second air inlet hole; when the heat dissipation fan works, the sliding plate abuts against the inner wall of the end of the sliding groove away from the tension spring, and each first air inlet hole is in communication with the whole second air inlet hole.

[0010] Both the isolation heat conducting plates are accommodated in the receiving shell and are located between the receiving table and the wind blocking connecting plate; one end of one isolation heat conducting plate is connected with the top inner wall of the receiving shell, and one end of the other isolation heat conducting plate is connected with the bottom inner wall of the receiving shell; the two isolation heat conducting plates and the wind blocking connecting plate form an S-shaped heat dissipation air duct inside the receiving shell.

[0011] In one of the embodiments, the wind blocking connecting plate is integrally formed with the sliding plate.

[0012] In one of the embodiments, the receiving table is a cuboid structure.

[0013] In one of the embodiments, the receiving table is a cylindrical structure.

[0014] In one of the embodiments, the receiving shell is a hollow cuboid structure.

[0015] In one of the embodiments, the projection hole is a circular hole.

[0016] In one of the embodiments, the threading hole is a circular hole.

[0017] In one of the embodiments, the first air inlet hole is a circular hole.

[0018] In one of the embodiments, the heat dissipation hole is a circular hole.

[0019] In one of the embodiments, the heat dissipation hole is a square hole.

[0020] The heat dissipation structure of the projector is detachably connected with the supporting table through the connecting screw holes in the working process. The power line of the external projector body passes through the threading hole. The external projector body projects through the projection hole. The heat dissipation fan works, so that the external cold air enters into the supporting shell through the second air inlet holes and the first air inlet holes. The external projector body is cooled, and the hot air generated in the cooling process is discharged from the supporting shell through the S-shaped heat dissipation air duct and the heat dissipation holes, so that the cooling operation is fully realized. In the stop state of the heat dissipation fan, each first air inlet hole is partially communicated with a second air inlet hole, so that the amount of dust entering the supporting shell in the idle state is reduced. The suction force generated by the heat dissipation fan can drive the sliding plate to move along the sliding groove through the wind-blocking connecting plate, so that the sliding plate abuts against the inner wall of the end of the sliding groove away from the tension spring. Therefore, each first air inlet hole is fully communicated with a second air inlet hole, so that the air inlet amount is increased, and the heat dissipation effect of the heat dissipation structure of the projector is improved. The heat dissipation structure of the projector can be adjusted according to the heat dissipation requirement, and can meet the multi-stage heat dissipation requirement. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a structure schematic view of the heat dissipation structure of the projector in an embodiment.

[0022] Fig. 2 It is a local enlarged structure schematic view of the heat dissipation structure of the projector in an embodiment.

[0023] Fig. 3 It is a local enlarged structure schematic view of the heat dissipation structure of the projector in an embodiment. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, characteristics and advantages of the present application more apparent, understandable and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0026] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly contacted through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0028] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and are not the only embodiment.

[0029] Please see Figs. 1 to 3 The present application provides a heat dissipation structure 10 of a projector, which comprises a receiving shell 100, a receiving table 200, a heat dissipation fan 300, a heat dissipation adjusting mechanism 400 and two isolation heat conduction plates 500.

[0030] In the embodiment, the receiving shell 100 is a hollow cuboid structure. One end of the receiving shell 100 is provided with a projection hole 101. In the embodiment, the projection hole 101 is a circular hole. The other end of the receiving shell 100 is uniformly provided with a plurality of heat dissipation holes 102. In the embodiment, the heat dissipation holes 102 are circular holes. In another embodiment, the heat dissipation holes 102 are square holes. The top of the receiving shell 100 is provided with a threading hole 103 near the projection hole 101. In the embodiment, the threading hole 103 is a circular hole. The top of the receiving shell 100 is provided with a sliding groove 104, and the end of the sliding groove 104 away from the threading hole 103 is provided with a sliding opening 105. The part of the sliding groove 104 away from the sliding opening 105 is uniformly provided with a plurality of first air inlet holes 106 in an array. In the embodiment, the first air inlet holes 106 are circular holes.

[0031] The receiving table 200 is arranged in the receiving shell 100 and connected with the inner wall of the receiving shell 100. The receiving table 200 is arranged near the projection hole 101. The receiving table 200 is provided with a plurality of connecting screw holes 201 for connecting with the projector body. In the embodiment, the receiving table 200 is a cuboid structure. In another embodiment, the receiving table 200 is a cylindrical structure.

[0032] The heat dissipation fan 300 is arranged in the receiving shell 100 and connected with the inner wall of the receiving shell 100. The heat dissipation fan 300 is arranged near each heat dissipation hole 102. The blowing end of the heat dissipation fan 300 is arranged towards each heat dissipation hole 102.

[0033] The heat dissipation adjusting mechanism 400 includes a tension spring 410, a sliding plate 420, and a wind blocking connecting plate 430. The tension spring 410 is accommodated in the sliding groove 104, and one end of the tension spring 410 is connected with the inner side wall of the sliding groove 104 near the projection hole 101. The sliding plate 420 is matched with the sliding groove 104, and the sliding plate 420 is inserted into the sliding groove 104 and connected with the receiving shell 100 in a sliding manner. The other end of the tension spring 410 is connected with one end of the sliding plate 420. The wind blocking connecting plate 430 is connected with the other end of the sliding plate 420 perpendicularly. In the embodiment, the wind blocking connecting plate 430 is integrally formed with the sliding plate 420. The wind blocking connecting plate 430 is matched with the sliding opening 105, and the wind blocking connecting plate 430 is inserted into the sliding opening 105 and connected with the receiving shell 100 in a sliding manner. The wind blocking connecting plate 430 is partially inserted into the receiving shell 100. The part of the sliding plate 420 away from the wind blocking connecting plate 430 is uniformly provided with a plurality of second air inlet holes 401 in an array. The first air inlet holes 106 and the second air inlet holes 401 are of the same size. In the off state of the heat dissipation fan 300, each first air inlet hole 106 is partially communicated with a second air inlet hole 401. When the heat dissipation fan 300 is working, when the sliding plate 420 abuts against the inner wall of the end of the sliding groove 104 away from the tension spring 410, each first air inlet hole 106 is fully communicated with a second air inlet hole 401.

[0034] Two isolation heat-conducting plates 500 are accommodated in the receiving shell 100 and located between the receiving table 200 and the wind-blocking connecting plate 430. One end of one isolation heat-conducting plate 500 is connected with the top inner wall of the receiving shell 100, and one end of the other isolation heat-conducting plate 500 is connected with the bottom inner wall of the receiving shell 100. The two isolation heat-conducting plates 500 and the wind-blocking connecting plate 430 form an S-shaped heat dissipation air duct inside the receiving shell 100.

[0035] In the working process of the above-mentioned heat dissipation structure 10 of the projector, the external projector body is detachably connected with the receiving table 200 through the connecting screw holes 201. The power supply wire of the external projector body passes through the wire hole 103. The external projector body projects through the projection hole 101. The heat dissipation fan 300 works, so that the external cold air enters into the receiving shell 100 through the second air inlet holes 401 and the first air inlet holes 106. The external projector body is cooled, and the hot air generated in the cooling process is discharged from the receiving shell 100 through the S-shaped heat dissipation air duct and the heat dissipation holes 102, so as to realize sufficient cooling operation. In the stop state of the heat dissipation fan 300, each first air inlet hole 106 is partially communicated with a second air inlet hole 401, so as to reduce the amount of dust entering the receiving shell 100 in the idle state. The suction force generated by the heat dissipation fan 300 drives the sliding plate 420 to move along the sliding groove 104 through the wind-blocking connecting plate 430, so that the sliding plate 420 abuts against the inner wall of the end of the sliding groove 104 away from the tension spring 410. Thus, each first air inlet hole 106 is fully communicated with a second air inlet hole 401, so as to increase the air inlet amount and improve the heat dissipation effect of the heat dissipation structure 10 of the projector. The above-mentioned heat dissipation structure 10 of the projector can be adjusted according to the heat dissipation requirement, and can meet the multi-stage heat dissipation requirement.

[0036] The technical features of the above-mentioned embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0037] The above-mentioned embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A heat dissipating structure of a projector, characterized by comprising: The utility model relates to a projection device heat dissipation device which comprises a receiving shell, a receiving table, a heat dissipation fan, a heat dissipation adjusting mechanism and two isolated heat conduction plates. One end of the receiving shell is provided with a projection hole, and the other end of the receiving shell is uniformly provided with a plurality of heat dissipation holes; a threading hole is formed in the part of the top of the receiving shell close to the projection hole; a sliding groove is formed in the top of the receiving shell, and one end of the sliding groove away from the threading hole is provided with a sliding opening; a plurality of first air inlet holes are uniformly formed in the part of the sliding groove away from the sliding opening in an array. The receiving table is arranged in the receiving shell and connected with the inner wall of the receiving shell, and is arranged close to the projection hole; a plurality of connecting screw holes are formed in the receiving table for connecting with the body of an external projector. The heat dissipation fan is arranged in the receiving shell and connected with the inner wall of the receiving shell, and is arranged close to each heat dissipation hole. The heat dissipation adjusting mechanism comprises a tension spring, a sliding plate and a wind-blocking connecting plate; the tension spring is accommodated in the sliding groove, one end of the tension spring is connected with the inner side wall of the sliding groove close to the projection hole; the sliding plate is matched with the sliding groove, and is inserted into the sliding groove and connected with the receiving shell in a sliding manner; the other end of the tension spring is connected with one end of the sliding plate; the wind-blocking connecting plate is connected with the end of the sliding plate away from the tension spring in a perpendicular manner; the wind-blocking connecting plate is matched with the sliding opening, and is inserted into the sliding opening and connected with the receiving shell in a sliding manner; the wind-blocking connecting plate is partially inserted into the receiving shell; a plurality of second air inlet holes are uniformly formed in the part of the sliding plate away from the wind-blocking connecting plate in an array; the first air inlet holes and the second air inlet holes are of the same size; when the heat dissipation fan is in a stop state, each first air inlet hole is in communication with the part of a corresponding second air inlet hole; when the heat dissipation fan is working, when the sliding plate abuts against the inner wall of one end of the sliding groove away from the tension spring, each first air inlet hole is in communication with the whole of a corresponding second air inlet hole; The two isolated heat conduction plates are accommodated in the receiving shell and located between the receiving table and the wind-blocking connecting plate; one end of one isolated heat conduction plate is connected with the inner wall of the top of the receiving shell, and the other end of the other isolated heat conduction plate is connected with the inner wall of the bottom of the receiving shell; the two isolated heat conduction plates and the wind-blocking connecting plate form an S-shaped heat dissipation air duct inside the receiving shell. The wind-blocking connecting plate and the sliding plate are integrally formed.

2. The heat dissipating structure of a projector according to claim 1, wherein The receiving table is of a cuboid structure.

3. The heat dissipating structure of a projector according to claim 1, wherein The receiving table is of a cylindrical structure.

4. The heat dissipating structure of a projector according to claim 1, wherein The receiving shell is of a hollow cuboid structure.

5. The heat dissipating structure of a projector according to claim 1, wherein The projection hole is a circular hole.

6. The heat dissipating structure of a projector according to claim 1, wherein The threading hole is a circular hole.

7. The heat dissipating structure of a projector according to claim 1, wherein The first air inlet hole is a circular hole.

8. The heat dissipating structure of a projector according to claim 1, wherein, The heat dissipation hole is a circular hole.

9. The heat dissipating structure of a projector according to claim 1, wherein, The heat dissipation hole is a square hole.

10. The heat dissipating structure of a projector according to claim 1, wherein ​

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