Heat dissipation structure and projector

Abstract

The utility model relates to the technical field of projectors, in particular to a heat dissipation structure and a projector, which comprises a mounting cylinder, a filter screen, an air inducing mechanism, a cleaning mechanism and an adjusting mechanism, a protective net is arranged at an inlet of the mounting cylinder; the filter screen is arranged in the mounting cylinder; the air inducing mechanism is arranged in the mounting cylinder and is positioned between the filter screen and the outlet of the mounting cylinder; the cleaning mechanism is arranged in the mounting cylinder and is in transmission connection with the air inducing mechanism; the adjusting mechanism is arranged in the mounting cylinder, and one end of the adjusting mechanism is in transmission connection with the cleaning mechanism. Through cooperative arrangement of the air inducing mechanism, the cleaning mechanism and the adjusting mechanism, the cleaning mechanism is in a working state through the adjusting mechanism, the air inducing mechanism rotates reversely to drive the cleaning mechanism to clean the filter screen, and cleaned dust and cotton fibers are just blown out of the mounting cylinder by airflow; the influence of dust and cotton fibers on the air inlet amount of the heat dissipation structure is reduced, and then the heat dissipation efficiency of the heat dissipation structure is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a projector technical field, concretely relates to a heat dissipation structure and projector. BACKGROUND

[0002] With the development of science and technology, the use of projector is more and more extensive, many teaching sites are installed with projector, and the existing projector is composed of projection part, power supply part, sound part and heat dissipation part.

[0003] The Chinese patent with the publication number CN218728563U discloses a projector heat dissipation structure and projector, relating to the technical field of projector. The utility model discloses a mounting shell, the wall thickness of mounting shell is equipped with interlayer, the mounting shell is equipped with air inlet and air outlet, the interlayer has two openings, one of the openings is communicated with the air outlet, and the other opening is communicated with the inside of the mounting shell. The utility model discloses that the interlayer is arranged on the wall thickness of the mounting shell of the projector, and the fin is arranged in the interlayer, the airflow is blown into the communicating pipe through the blowing piece, the airflow enters the interlayer through the communicating pipe, the airflow is used for heat dissipation of the whole mounting shell, so as to indirectly heat dissipation of the components in the mounting shell, the contact area of the mounting shell and the airflow is increased through the fin, the heat dissipation effect is increased, and the airflow is more uniform in heat dissipation through the interlayer.

[0004] However, the above technical scheme has the following disadvantages: as the dust and cotton wool attached to the surface of the dustproof plate increases, the overall air intake of the heat dissipation structure also decreases, which affects the heat dissipation efficiency of the heat dissipation structure. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a projector.

[0006] The technical scheme of the utility model: a heat dissipation structure, comprising:

[0007] The inlet of the mounting cylinder is provided with a protective net;

[0008] The filter screen is arranged in the mounting cylinder and used for filtering the flowing air;

[0009] The air guiding mechanism is arranged in the mounting cylinder, and the air guiding mechanism is located between the filter screen and the outlet of the mounting cylinder;

[0010] The cleaning mechanism is arranged in the mounting cylinder and used for cleaning the filter screen, and the cleaning mechanism is in transmission connection with the air guiding mechanism;

[0011] The adjusting mechanism is arranged in the mounting cylinder, and one end of the adjusting mechanism is in transmission connection with the cleaning mechanism.

[0012] Preferably, the air induction mechanism comprises a support frame, a driving motor, a driving shaft and an air induction impeller; the support frame is fixedly connected with the inner wall of the mounting cylinder, the driving motor is fixedly connected with the support frame, the driving shaft is fixedly connected with the output end of the driving motor, and the air induction impeller is fixedly connected with the driving shaft.

[0013] Preferably, the cleaning mechanism comprises a transmission shaft, cleaning brushes and a transmission assembly; the transmission shaft penetrates through the filter screen and is movably connected with the filter screen, the cleaning brushes are provided in two, the two cleaning brushes are symmetrically arranged on the transmission shaft, one end of the transmission assembly is connected with the transmission shaft, and the other end of the transmission assembly is connected with the driving shaft.

[0014] Preferably, the transmission assembly comprises a first transmission disc and a second transmission disc; the first transmission disc is fixedly connected with the driving shaft, the second transmission disc is fixedly connected with the transmission shaft, and the first transmission disc is matched with the second transmission disc.

[0015] Preferably, the adjusting mechanism comprises an adjusting disc, adjusting springs, a guide cylinder and an adjusting assembly; the adjusting disc is rotatably connected with the transmission shaft, the adjusting springs are provided in multiple, one end of the adjusting springs is fixedly connected with the adjusting disc, the other end of the adjusting springs is fixedly connected with the protective screen, one end of the guide cylinder is fixedly connected with the protective screen, the adjusting assembly is arranged in the guide cylinder, and one end of the adjusting assembly is connected with the adjusting disc.

[0016] Preferably, the adjusting assembly comprises an adjusting cylinder, an adjusting rod, an adjusting block and an adjusting handle; the adjusting cylinder is slidably arranged in the guide cylinder, one end of the adjusting cylinder is fixedly connected with the adjusting disc, the adjusting rod penetrates through the protective screen and is rotatably connected with the protective screen, one end of the adjusting rod extends into the interior of the adjusting cylinder, the end of the adjusting rod located in the interior of the adjusting cylinder is fixedly connected with the adjusting block, the adjusting cylinder is provided with an adjusting hole, the adjusting block penetrates through the adjusting cylinder through the adjusting hole, and the adjusting handle is fixedly connected with the end of the adjusting rod located outside the mounting cylinder.

[0017] A projector with the heat dissipation structure has the characteristics that the projector main body is provided with the mounting cylinder in communication therewith, and the projector main body is provided with the air-permeable hole.

[0018] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0019] The cooperation of the air induction mechanism, the cleaning mechanism and the adjusting mechanism can make the cleaning mechanism work in the working state through the adjusting mechanism when the dust and the lint attached to the surface of the filter screen begin to affect the air intake of the heat dissipation structure, the air induction mechanism is reversely rotated to drive the cleaning mechanism to clean the filter screen, the dust and the lint swept down are blown out of the mounting cylinder by the airflow, the influence of the dust and the lint on the air intake of the heat dissipation structure is reduced, and the heat dissipation efficiency of the heat dissipation structure is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the heat dissipation structure proposed by the present utility model;

[0021] Figure 2 This is a cross-sectional view of the heat dissipation structure proposed by the present utility model;

[0022] Figure 3 A three-dimensional diagram of a cleaning mechanism in an embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of an adjustment mechanism in an embodiment of the present invention;

[0024] Figure 5 This is a three-dimensional diagram of an adjustment cylinder in an embodiment of the present utility model;

[0025] Figure 6 A three-dimensional diagram of an adjusting rod in an embodiment of the present invention;

[0026] Figure 7 This is a three-dimensional diagram of the projector proposed in the present invention.

[0027] Figure numerals: 1. Mounting cylinder; 2. Protective net; 3. Air induced draft mechanism; 31. Support frame; 32. Driving motor; 33. Driving shaft; 34. Air induced draft impeller; 4. Cleaning mechanism; 41. Transmission shaft; 42. Cleaning brush; 43. Transmission assembly; 431. First transmission disc; 432. Second transmission disc; 5. Adjustment mechanism; 51. Adjustment disc; 52. Adjustment spring; 53. Guide cylinder; 54. Adjustment assembly; 541. Adjustment cylinder; 542. Adjustment rod; 543. Adjustment block; 544. Adjustment handle; 545. Adjustment hole; 6. Filter; 7. Camera body. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figures 1-6 As shown, the heat dissipation structure proposed by the present invention includes a mounting tube 1, a filter screen 6, an air induction mechanism 3, a cleaning mechanism 4 and an adjustment mechanism 5:

[0030] The inlet of the installation cylinder 1 is provided with a protective net 2;

[0031] The filter screen 6 is arranged in the mounting cylinder 1 to filter the air flowing through;

[0032] The air induction mechanism 3 is arranged in the mounting cylinder 1, and is located between the filter screen 6 and the outlet of the mounting cylinder 1; the air induction mechanism 3 comprises a support frame 31, a driving motor 32, a driving shaft 33 and an air induction impeller 34; the support frame 31 is fixedly connected with the inner wall of the mounting cylinder 1, the driving motor 32 is fixedly connected with the support frame 31, the driving motor 32 has the function of forward and reverse rotation, is connected with a control system and a power supply through wires, the driving shaft 33 is fixedly connected with the output end of the driving motor 32, and the air induction impeller 34 is fixedly connected with the driving shaft 33;

[0033] The cleaning mechanism 4 is arranged in the mounting cylinder 1 and used for cleaning the filter screen 6, and is in transmission connection with the air induction mechanism 3; the cleaning mechanism 4 comprises a transmission shaft 41, cleaning brushes 42 and a transmission assembly 43; the transmission shaft 41 penetrates through the filter screen 6 and is movably connected with the filter screen 6, the cleaning brushes 42 are provided in two, the two cleaning brushes 42 are symmetrically arranged on the transmission shaft 41, one end of the transmission assembly 43 is connected with the transmission shaft 41, and the other end of the transmission assembly 43 is connected with the driving shaft 33; the transmission assembly 43 comprises first transmission discs 431 and second transmission discs 432; the first transmission discs 431 are fixedly connected with the driving shaft 33, the second transmission discs 432 are fixedly connected with the transmission shaft 41, and the first transmission discs 431 are adapted to the second transmission discs 432;

[0034] The adjusting mechanism 5 is arranged in the mounting cylinder 1, and one end of the adjusting mechanism 5 is in transmission connection with the cleaning mechanism 4; the adjusting mechanism 5 comprises an adjusting disc 51, adjusting springs 52, a guide cylinder 53 and an adjusting assembly 54; the adjusting disc 51 is rotatably connected with the transmission shaft 41, the adjusting springs 52 are provided in a plurality of, one end of the adjusting springs 52 is fixedly connected with the adjusting disc 51, the other end of the adjusting springs 52 is fixedly connected with the protective screen 2, one end of the guide cylinder 53 is fixedly connected with the protective screen 2, the adjusting assembly 54 is arranged in the guide cylinder 53, and one end of the adjusting assembly 54 is connected with the adjusting disc 51; the adjusting assembly 54 comprises an adjusting cylinder 541, an adjusting rod 542, an adjusting block 543 and an adjusting handle 544; the adjusting cylinder 541 is slidably arranged in the guide cylinder 53, one end of the adjusting cylinder 541 is fixedly connected with the adjusting disc 51, the adjusting rod 542 penetrates through the protective screen 2 and is rotatably connected with the protective screen 2, one end of the adjusting rod 542 extends into the interior of the adjusting cylinder 541, the end of the adjusting rod 542 located in the interior of the adjusting cylinder 541 is fixedly connected with the adjusting block 543, the adjusting cylinder 541 is provided with an adjusting hole 545, the adjusting block 543 penetrates through the adjusting cylinder 541 through the adjusting hole 545, and the adjusting handle 544 is fixedly connected with the end of the adjusting rod 542 located outside the mounting cylinder 1.

[0035] Embodiment two

[0036] As Figure 7The utility model provides a projector with the above heat dissipation structure, including projector main body 7, installation cylinder 1 sets up in projector main body 7, installation cylinder 1 is linked with projector main body 7, and the through opening of projector main body 7 is provided with the air hole 8.

[0037] When the projector works, the driving motor 32 works through the driving shaft 33 and drives the air guide impeller 34 to rotate to drive the air into the projector main body 7 through the installation cylinder 1, heat dissipation is carried out to the inside of the projector main body 7, when the air current flows through the filter screen 6, the filter screen 6 filters the dust and lint carried in the air, avoids the dust and lint from entering the projector main body 7 to influence the use of the projector, when the filter screen 6 needs to be cleaned, first rotate the adjusting handle 544 to drive the adjusting block 543 to rotate through the adjusting rod 542, after the adjusting block 543 rotates in the adjusting hole 545, the adjusting block 543 loses the location of the adjusting cylinder 541, the adjusting disc 51 and the adjusting cylinder 541 move under the action of the adjusting spring 52 and then drive the cleaning brush 42 and the surface of the filter screen 6 to be attached through the transmission shaft 41 at the same time, the second transmission disc 432 and the first transmission disc 431 are attached, the driving motor 32 reversely rotates, drives the air guide impeller 34 and the first transmission disc 431 to reversely rotate through the driving shaft 33, the air guide impeller 34 reversely blows air outward, the first transmission disc 431 rotates to drive the cleaning brush to rotate through the second transmission disc 432 and the transmission shaft 41 and cleans the dust and lint attached to the surface of the filter screen 6, the dust and lint cleaned down are blown out of the installation cylinder 1 by the air current, after cleaning, reversely rotate the adjusting handle 544 to drive the adjusting block 543 to rotate through the adjusting rod 542, the adjusting block 543 rotates to drive the adjusting cylinder 541 to slide along the inner wall of the guide cylinder 53 through the adjusting hole 545, the adjusting cylinder 541 moves to drive the second transmission disc 432 and the first transmission disc 431 to be separated through the adjusting disc 51 and the transmission shaft 41, when the driving motor 32 normally works and dissipates heat, the cleaning mechanism 4 is avoided to act.

[0038] The embodiment of the utility model has been described in detail in connection with the drawings above, but the utility model is not limited to this, within the knowledge scope of the person skilled in the art, still can make various changes under the premise of not departing from the utility model's purpose.

Claims

1. A heat dissipation structure, characterized in that: include: An installation cylinder (1) is provided with a protective net (2) at its inlet; A filter (6) is arranged in the mounting cylinder (1) and is used to filter the air flowing through it; An air induction mechanism (3) is arranged in the installation cylinder (1), and the air induction mechanism (3) is located between the filter screen (6) and the outlet of the installation cylinder (1); A cleaning mechanism (4) is arranged in the installation cylinder (1) and is used for cleaning the filter screen (6). The cleaning mechanism (4) is in driving connection with the air induction mechanism (3); The regulating mechanism (5) is arranged in the installation cylinder (1), and one end of the regulating mechanism (5) is transmission-connected to the cleaning mechanism (4).

2. A heat dissipation structure according to claim 1, characterized in that: The induced draft mechanism (3) comprises a support frame (31), a drive motor (32), a drive shaft (33) and an induced draft impeller (34); the support frame (31) is fixedly connected to the inner wall of the mounting cylinder (1), the drive motor (32) is fixedly connected to the support frame (31), the drive shaft (33) is fixedly connected to the output end of the drive motor (32), and the induced draft impeller (34) is fixedly connected to the drive shaft (33).

3. A heat dissipation structure according to claim 2, characterized in that: The cleaning mechanism (4) comprises a transmission shaft (41), a cleaning brush (42) and a transmission assembly (43); the transmission shaft (41) passes through the filter screen (6) and is movably connected to the filter screen (6); two cleaning brushes (42) are provided, and the two cleaning brushes (42) are symmetrically arranged on the transmission shaft (41); one end of the transmission assembly (43) is connected to the transmission shaft (41), and the other end of the transmission assembly (43) is connected to the drive shaft (33).

4. A heat dissipation structure according to claim 3, characterized in that: The transmission assembly (43) includes a first transmission disc (431) and a second transmission disc (432); the first transmission disc (431) is fixedly connected to the drive shaft (33), the second transmission disc (432) is fixedly connected to the transmission shaft (41), and the first transmission disc (431) and the second transmission disc (432) are adapted to each other.

5. The heat dissipation structure according to claim 4, characterized in that: The adjusting mechanism (5) comprises an adjusting disk (51), an adjusting spring (52), a guide cylinder (53) and an adjusting assembly (54); the adjusting disk (51) is rotatably connected to the transmission shaft (41); a plurality of adjusting springs (52) are provided; one end of the adjusting spring (52) is fixedly connected to the adjusting disk (51); the other end of the adjusting spring (52) is fixedly connected to the protective net (2); one end of the guide cylinder (53) is fixedly connected to the protective net (2); the adjusting assembly (54) is provided in the guide cylinder (53); and one end of the adjusting assembly (54) is connected to the adjusting disk (51).

6. The heat dissipation structure according to claim 5, characterized in that: The adjusting assembly (54) comprises an adjusting cylinder (541), an adjusting rod (542), an adjusting block (543) and an adjusting handle (544); the adjusting cylinder (541) is slidably arranged in the guide cylinder (53); one end of the adjusting cylinder (541) is fixedly connected to the adjusting disk (51); the adjusting rod (542) passes through the protective net (2) and is rotatably connected to the protective net (2); one end of the adjusting rod (542) extends into the interior of the adjusting cylinder (541); one end of the adjusting rod (542) located inside the adjusting cylinder (541) is fixedly connected to the adjusting block (543); the adjusting cylinder (541) is provided with an adjusting hole (545); the adjusting block (543) passes through the adjusting cylinder (541) through the adjusting hole (545); and the adjusting handle (544) is fixedly connected to one end of the adjusting rod (542) located outside the mounting cylinder (1).

7. A projector having the heat dissipation structure according to any one of claims 1 to 6, characterized in that: The projector comprises a main body (7), a mounting tube (1) arranged in the main body (7), the mounting tube (1) being connected to the main body (7), and a vent hole (8) being provided through the main body (7).

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