Cooling fin, packaging structure and projector

Abstract

The utility model provides a radiating fin, a packaging structure and a projector, and relates to the technical field of projectors, a radiating plate is of a continuous back-and-forth winding and folding structure and forms a plurality of first ventilation slots and a plurality of second ventilation slots, and a fixing assembly blocks two ends of the plurality of first ventilation slots. The first ventilation slots can guide air flow to absorb heat in the closed space, so that heat dissipation of the closed space is facilitated; the packaging structure is composed of a first air blower, a box body and a cooling fin, due to the fact that the box body is separated by a lens, when the first air blower blows air towards the first cavity, the air is guided by the cooling fin to flow back into the second cavity and then enters the first air blower again, air flow internal circulation is formed, and the air flow in the whole packaging structure can be rapidly cooled; in addition, during internal circulation heat dissipation of the packaging structure, heat dissipation of one side of the projection lamp set is also facilitated, a second air blower is further arranged below the projector to blow the cooling fins and the projection lamp set to assist in heat dissipation, and the heat dissipation efficiency of the cooling fins is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of projectors, and in particular to a heat sink, a packaging structure and a projector. Background Art

[0002] A 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 currently widely used in homes, offices, schools, and entertainment venues. There are different types of projectors, such as CRT, LCD, and DLP, depending on the working mode. The heat dissipation structure is an important part of the projector.

[0003] However, the existing technology has the following shortcomings: the existing projector heat dissipation structure adopts the method of fan blowing air inward to dissipate heat, and the heat sink is also single-sided and single-channel, that is, the wind can only blow on one side. For the need to make the projector small in size, the arrangement of the small-volume heat sink is particularly important. If the air can only be blown on one side, the heat dissipation effect is poor, which leads to problems affecting the normal operation of the projector.

[0004] Therefore, it is necessary to propose a heat sink, a packaging structure and a projector to improve the heat dissipation effect of the heat sink, and optimize the arrangement of the heat sink to further improve the heat dissipation effect. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a heat sink, a packaging structure and a projector to improve the heat dissipation effect of the heat sink, and optimize the arrangement of the heat sink to further improve the heat dissipation effect.

[0006] The utility model is realized by the following technical solutions:

[0007] The utility model proposes a heat sink, comprising a heat sink and a fixing assembly. The heat sink is in a continuous back-and-forth meandering folding structure and forms a plurality of first ventilation slots and a plurality of second ventilation slots. The plurality of first ventilation slots are respectively arranged in sequence with the plurality of second ventilation slots. The fixing assembly is fixedly connected to both ends of the heat sink and seals both ends of the plurality of first ventilation slots.

[0008] Furthermore, the fixing component includes two blocking components, and the blocking components are fixedly connected to both ends of the heat dissipation plate and block both ends of the plurality of first ventilation slots.

[0009] Furthermore, the fixing assembly includes two fixing plates, which are respectively fixedly connected to the upper surfaces of both ends of the heat dissipation plate and are symmetrically arranged, and the two fixing plates respectively block both ends of the plurality of first ventilation slots.

[0010] Furthermore, the blocking assembly is provided with blocking blocks having the same number as the first ventilation slots, and the plurality of blocking blocks correspond one-to-one to the plurality of first ventilation slots respectively. The blocking blocks are accommodated in the first ventilation slots and fit against the inner walls of the first ventilation slots, and the blocking blocks are located at one end of the first ventilation slots.

[0011] A packaging structure, according to the heat sink described above, includes a first hair dryer, a box body, and the heat sink. The first hair dryer and the heat sink are respectively fixedly connected to the two ends of the box body to form a package for the box body. A lens is provided in the box body, and the lens divides the box body into a first chamber and a second chamber. The first hair dryer and the heat sink are both connected to the first chamber and the second chamber. The first hair dryer blows air toward the first chamber, and the wind is guided back into the second chamber through the heat sink and then enters the first hair dryer again to form an internal air circulation.

[0012] Furthermore, an air guiding channel is provided on one side of the first chamber, the air guiding channel is communicated with the first chamber, one end of the air guiding channel is communicated with the air outlet of the first hair dryer, and the other end of the air guiding channel is communicated with one end of the heat sink.

[0013] Furthermore, a connecting frame is provided in the box, and the lens is fixedly connected to the connecting frame and the vertical surface is arranged at an angle.

[0014] Furthermore, the angle is 40 to 50 degrees.

[0015] A projector, according to the packaging structure described above, includes a shell, the packaging structure, a projection lamp group, a second blower, and a circuit board, wherein the packaging structure, the projection lamp group, the second blower, and the circuit board are all fixedly connected in the shell, the projection lamp group is located on one side of the packaging structure and faces the lens, the second blower is located below the heat sink and faces the heat sink, the bottom end of the projection lamp group is connected and conducted to one side of the second blower, and the packaging structure, the projection lamp group, and the second blower are all electrically connected to the circuit board.

[0016] Furthermore, a docking window is provided on one side of the packaging structure, and one end of the projection lamp group is fixedly connected to the docking window and faces the lens.

[0017] Beneficial effects of the utility model:

[0018] 1. The heat sink in the heat sink has a continuous back-and-forth winding and folding structure to form a plurality of first ventilation slots and a plurality of second ventilation slots, so that the heat sink can have two channels for blowing air, and the fixing components seal the two ends of the plurality of first ventilation slots, so that the first ventilation slots can guide the airflow to absorb heat in the closed space, and after the inner wall of the first ventilation slot absorbs heat, the wind from the second ventilation slot can take the heat away, thereby facilitating the heat dissipation in the closed space.

[0019] 2. The packaging structure consists of a first hair dryer, a box body, and a heat sink. Since the box body is separated by lenses, when the first hair dryer blows air toward the first chamber, the wind is guided back to the second chamber through the heat sink and then enters the first hair dryer again, forming an internal air circulation. During the air circulation process, the heat sink absorbs heat from the hot air flow and then dissipates the heat externally, so that the air flow in the entire packaging structure can be quickly cooled down.

[0020] 3. When the internal circulation heat dissipation of the packaging structure is carried out, it also helps one side of the projection lamp group to dissipate heat, and a second hair dryer is arranged under the projector to blow air to the heat sink to assist in heat dissipation, thereby improving the heat dissipation efficiency of the heat sink. At the same time, when the second hair dryer blows air to the heat sink, cold air enters from the bottom of the projection lamp group, thereby also dissipating the heat at the bottom of the projection lamp group. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an exploded view of the projector of the present utility model;

[0022] Figure 2 It is a partial exploded view of the packaging structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the interior of the projector of the utility model;

[0024] Figure 4 This is an exploded view of the heat sink of the utility model.

[0025] The reference numerals are as follows:

[0026] Heat sink 101, heat sink plate 1, first ventilation slot 11, second ventilation slot 12, fixing assembly 2, fixing plate 21, blocking block 211, first blower 3, air outlet 31, box body 4, lens 41, first chamber 42, second chamber 43, air guide channel 44, connecting frame 45, shell 5, packaging structure 102, docking window 1021, projection lamp group 6, heat sink 61, second blower 7, air intake port 71, circuit board 8. DETAILED DESCRIPTION

[0027] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0028] Please refer to Figure 2 , Figure 4 The utility model proposes a heat sink, including a heat sink 1 and a fixing component 2. The heat sink 1 and the fixing component 2 can be made of metal materials. The heat sink 1 is a continuous back-and-forth winding folding structure and forms a plurality of first ventilation slots 11 and a plurality of second ventilation slots 12. The plurality of first ventilation slots 11 are respectively arranged in sequence with the plurality of second ventilation slots 12 at intervals. The fixing component 2 is fixedly connected to both ends of the heat sink 1 and blocks both ends of the plurality of first ventilation slots 11. The fixing component 2 is used for external fixing to facilitate external installation of the heat sink.

[0029] In this embodiment, the heat sink 1 in the heat sink presents a continuous back-and-forth winding folding structure and forms a plurality of first ventilation slots 11 and a plurality of second ventilation slots 12. The first ventilation slots 11 and the second ventilation slots 12 are separated by the heat sink 1, so that the heat sink can have two channels for blowing air, that is, the airflow can flow from the first ventilation slots 11 and the second ventilation slots 12 respectively, and the fixing component 2 blocks both ends of the plurality of first ventilation slots 11, so that the first ventilation slots 11 can guide the airflow to absorb heat in the closed space, that is, the heat sink 1 can be installed with the first ventilation slots 11 facing the closed space to block the closed space, and the hot air in the closed space will flow in the first ventilation slots 11. After the inner wall of the first ventilation slots 11 absorbs heat, that is, after the heat sink 1 absorbs heat, the wind blowing from the second ventilation slots 12 can take away the heat of the heat sink 1, which is convenient for capturing heat in the closed space and dissipating heat.

[0030] In this embodiment, the fixing component 2 includes two sealing components, which are fixedly connected to the two ends of the heat sink 1 and seal the two ends of the multiple first ventilation grooves 11. The sealing component can be composed of multiple parts of the same type, and seal the multiple first ventilation grooves 11 separately, or it can be a whole that directly seals the multiple first ventilation grooves 11 together.

[0031] In this embodiment, the fixing assembly 2 includes two fixing plates 21, which are respectively fixedly connected to the upper surfaces at both ends of the heat dissipation plate 1 and are symmetrically arranged, and the two fixing plates 21 respectively block the two ends of multiple first ventilation slots 11; the fixing plates 21 are used for external fixation and at the same time block the first ventilation slots 11, so that the wind cannot be blown out from the two ends of the first ventilation slots 11 after blowing into the first ventilation slots 11.

[0032] In this embodiment, the blocking assembly is provided with blocking blocks 211 having the same number as the first ventilation slots 11, and the multiple blocking blocks 211 correspond one-to-one to the multiple first ventilation slots 11 respectively, and the multiple blocking blocks 211 are arranged at equal intervals. The blocking blocks 211 are accommodated in the first ventilation slots 11 and fit against the inner walls of the first ventilation slots 11, and the blocking blocks 211 are located at one end of the first ventilation slots 211; the arrangement structure of the multiple blocking blocks 211 is in a comb shape, so that when workers assemble the heat sink, they can quickly install the fixing plate 21 and block the first ventilation slots 11 at the same time.

[0033] Please refer to Figure 1-Figure 3 A packaging structure, according to the above-mentioned heat sink, includes a first hair dryer 3, a box 4, and a heat sink 101. The first hair dryer 3 and the heat sink 101 are respectively fixedly connected to the two ends of the box 4 to form a package for the box 4. A lens 41 is provided in the box 4. The lens 41 divides the box 4 into a first chamber 42 and a second chamber 43. The first hair dryer 3 and the heat sink 101 are both connected to the first chamber 42 and the second chamber 43. The first hair dryer 3 blows air toward the first chamber 42. The wind is guided back to the second chamber 43 through the heat sink 101 and then enters the first hair dryer 3 again to form an internal airflow circulation.

[0034] In this embodiment, the packaging structure can be used for heat dissipation of internal circulation of air flow. The packaging structure is composed of a first hair dryer 3, a box body 4, and a heat sink 101, so that the box body 4 forms a closed space. Since the box body 4 is separated by a lens 41, the middle area of ​​the first chamber 42 and the second chamber 43 is not conductive, and the first hair dryer 3 is at the top and the heat sink 101 is at the bottom. When the first hair dryer 3 blows air toward the first chamber 43, the wind flows downward along the first chamber 3 and enters the heat sink 101. After the wind is guided back to the second chamber 43 by the heat sink 101, the wind continues to flow upward. The wind inhaled by the first hair dryer 3 is not inhaled from the outside of the box body 4, but from the second chamber 43. In this way, the wind enters the first hair dryer 3 again, forming an internal circulation of the air flow, that is, the air flow circulates around the lens 41. During the air flow circulation process, the inner side of the heat sink 101 absorbs heat from the hot air flow, and then the outer side of the heat sink 101 dissipates heat externally, so that the air flow in the entire packaging structure can be quickly cooled down.

[0035] In this embodiment, an air guide channel 44 is provided on one side of the first chamber 42, and the air guide channel 44 is connected to the first chamber 42, one end of the air guide channel 44 is connected to the air outlet 31 of the first hair dryer 3, and the other end of the air guide channel 44 is connected to one end of the heat sink 101; the setting of the air guide channel 44 provides a space for the wind blown out from the first hair dryer 3 to flow downward quickly, so that the wind quickly enters the heat sink 101, so as to discharge the heat-dissipated wind from the heat sink 101 to the second chamber 43, so as to speed up the heat sink 101 to absorb the heat of the airflow, and then dissipate the heat externally.

[0036] In this embodiment, a connecting frame 45 is provided in the box body 4, and the lens 41 is fixedly connected to the connecting frame 45 and the vertical surface is set at an angle of 40 to 50 degrees; when installing the lens 41, the bottom of the lens 41 is aligned with the slot on the connecting frame 45, and then the lens 41 is inserted into the slot. The angle of the lens 41 is determined by the position of the slot, and slots with different angles have different types of connecting frames 45. Workers can replace the connecting frame 45 according to production needs.

[0037] Please refer to Figure 1-Figure 3 A projector, according to the above-mentioned packaging structure, includes a shell 5, a packaging structure 102, a projection lamp group 6, a second blower 7, a circuit board 8, and a battery. The packaging structure 102, the projection lamp group 6, the second blower 7, the circuit board 8, and the battery are all fixedly connected in the shell 5. The projection lamp group 6 is located on one side of the packaging structure 102 and faces the lens 41. The projection light of the projection lamp group 6 is projected by reflecting outward through the lens 41. The second blower 7 is located below the heat sink 101 and faces the heat sink 101. The bottom end of the projection lamp group 6 is connected and conducted to one side of the second blower 7. The packaging structure 102, the projection lamp group 6, and the second blower 7 are all electrically connected to the circuit board 8 through conductive wires. The circuit board 8 can issue corresponding operation instructions to the first blower 3, the projection lamp group 6, and the second blower 7 in the packaging structure 102 to make them operate. The battery is used to provide power to the circuit board 8. A plurality of buttons are provided on the shell 5, and the user can start the projector by pressing the buttons.

[0038] In this embodiment, a large amount of heat is generated when the projection lamp group 6 is irradiating. Since the lens 4 and the internal space of the packaging structure 102 are the structures illuminated or passed by the projection light, the internal space of the packaging structure 102 also has heat. When the internal circulation heat dissipation of the packaging structure 102 is performed, it also helps the projection lamp on one side of the projection lamp group 6 to dissipate heat. In addition, a second hair dryer 7 is provided under the projector to blow air to the heat sink 101 to assist in heat dissipation, thereby improving the heat dissipation efficiency of the heat sink 101 to the packaging structure 102. At the same time, when the second hair dryer 7 blows air to the heat sink 101, cold air enters from the bottom end of the projection lamp group 6, and the bottom end of the projection lamp group 6 is also cooled, thereby killing two birds with one stone and facilitating improving the heat dissipation efficiency.

[0039] In this embodiment, a docking window 1021 is provided on one side of the packaging structure 102, and one end of the projection lamp group 6 is fixedly connected to the docking window 1021 and faces the lens 41; the docking window 1021 is used to dock with the projection lamp group 6, so that the projection lamp group 6 can face the lens 41 at a preset angle, thereby smoothly performing projection.

[0040] In this embodiment, a heat sink 61 is provided at the bottom end of the projection lamp group 6, and an air suction port 71 is provided on one side of the second hair dryer 7. The air suction port 71 is fixedly connected and conducted to one side of the heat sink 61; the heat sink 61 is used to dissipate heat from the projection lamp group 6, and when the second hair dryer 7 blows air to the heat sink 101, the air suction port 71 sucks air from the heat sink 61, that is, absorbs the airflow, and the external cooling air is sucked in, passes through the heat sink 61 and enters the air suction port 71, and at this time, the heat sink 61 can be cooled together.

[0041] Of course, the present utility model may have many other implementations. Based on the present implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present utility model.

Claims

1. A heat sink, characterized in that: It includes a heat sink and a fixing component. The heat sink is in a continuous back-and-forth winding and folding structure to form a plurality of first ventilation slots and a plurality of second ventilation slots. The plurality of first ventilation slots are respectively arranged in sequence with the plurality of second ventilation slots. The fixing component is fixedly connected to both ends of the heat sink and seals both ends of the plurality of first ventilation slots.

2. The heat sink according to claim 1, characterized in that: The fixing component includes two blocking components, and the blocking components are fixedly connected to both ends of the heat dissipation plate and block both ends of the plurality of first ventilation slots.

3. The heat sink according to claim 1, characterized in that: The fixing assembly includes two fixing plates, which are respectively fixedly connected to the upper surfaces at both ends of the heat dissipation plate and are symmetrically arranged.

4. The heat sink according to claim 2, characterized in that: The blocking assembly is provided with blocking blocks having the same number as the first ventilation slots, and the plurality of blocking blocks correspond one-to-one to the plurality of first ventilation slots respectively. The blocking blocks are accommodated in the first ventilation slots and fit against the inner walls of the first ventilation slots, and the blocking blocks are located at one end of the first ventilation slots.

5. A packaging structure, according to the heat sink according to any one of claims 1 to 4, characterized in that: It includes a first hair dryer, a box body, and the heat sink. The first hair dryer and the heat sink are respectively fixedly connected to the two ends of the box body to form a package for the box body. A lens is provided in the box body to divide the box body into a first chamber and a second chamber. The first hair dryer and the heat sink are both connected to the first chamber and the second chamber. The first hair dryer blows air toward the first chamber. The wind is guided by the heat sink to flow back into the second chamber and then enters the first hair dryer again to form an internal air circulation.

6. The packaging structure according to claim 5, characterized in that: An air guiding channel is provided on one side of the first chamber, the air guiding channel is communicated with the first chamber, one end of the air guiding channel is communicated with the air outlet of the first hair dryer, and the other end of the air guiding channel is communicated with one end of the heat sink.

7. The packaging structure according to claim 5, characterized in that: A connecting frame is arranged in the box body, and the lens is fixedly connected to the connecting frame and the vertical surface is arranged at an angle.

8. The packaging structure according to claim 7, characterized in that: The angle is 40 to 50 degrees.

9. A projector, according to the packaging structure according to any one of claims 5 to 8, characterized in that: It includes a shell, a packaging structure, a projection lamp group, a second blower, and a circuit board. The packaging structure, the projection lamp group, the second blower, and the circuit board are all fixedly connected in the shell. The projection lamp group is located on one side of the packaging structure and faces the lens. The second blower is located below the heat sink and faces the heat sink. The bottom end of the projection lamp group is connected and conducted with one side of the second blower. The packaging structure, the projection lamp group, and the second blower are all electrically connected to the circuit board.

10. The projector according to claim 9, characterized in that A docking window is provided on one side of the packaging structure, and one end of the projection lamp group is fixedly connected to the docking window and faces the lens.

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