Parallel cooling fan

Abstract

The utility model provides a parallel type cooling fan which comprises a rectangular air duct support box, at least two turbofans are arranged in the air duct support box side by side, through holes are formed in the positions, corresponding to the two ends of the turbofans, of the front side wall and the rear side wall of the air duct support box respectively, and the upper side and the lower side of the air duct support box are provided with openings respectively. A partition plate is arranged between the two turbofans, and the upper end of the partition plate is correspondingly connected with the upper ends of the left side wall and the right side wall of the air duct support box through air deflectors. The air duct support box is designed, and the two turbofans are installed in the air duct support box in parallel, so that the parallel cooling fan is formed, and the market blank is filled up; meanwhile, the two turbofans are integrated on one air duct support box, the size is smaller, on the other hand, the two turbofans are integrated on one air duct support box, an original fan shell is omitted, installation is more convenient, and then cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of projector, concretely is a parallel connection type's heat dissipation fan. BACKGROUND

[0002] With the popularity of electronic equipment, the projector gradually walks into the public vision, and the projector has the advantages such as big display surface, convenient movement, is used in meeting, teaching, display and other occasions, gradually begins to walk into private family, and more and more people intend to use the projector to replace the TV as the audio-visual equipment of family, but the single independent design of turbine fan used in the current traditional projector, and the heat dissipation of long strip row radiator needs to install two or more single turbine fans to meet the demand, and then causes the rising of cost and the complication of assembly procedure. UTILITY MODEL CONTENT

[0003] In view of the above problems existing in the prior art, the parallel connection type heat dissipation fan provided by the utility model is used to overcome the above defects in the prior art.

[0004] To realize the above invention purpose, the utility model adopts the following technical scheme:

[0005] A parallel connection type heat dissipation fan, including the air duct support box of rectangle, the inside of air duct support box is provided with at least two turbine fans side by side, the position corresponding with the both ends of turbine fan is provided with through hole on the front and back side wall of air duct support box, the upper and lower sides of air duct support box are respectively open, and the interval plate is arranged between two turbine fans, and the upper end of interval plate is connected with the upper end of left side wall and right side wall of air duct support box through corresponding air deflector.

[0006] In one embodiment, the air deflector is in the form of a circular arc, and the turbine fan is located on the side of the air deflector that is concave.

[0007] In one embodiment, a turbine fan mounting plate is arranged in the through hole on the back side wall of the air duct support box, and a plurality of connecting plates are arranged around the turbine fan mounting plate, one end of the connecting plates is connected to the turbine fan mounting plate, and the other end is connected to the back side wall of the air duct support box.

[0008] In one embodiment, the outer surfaces of the turbine fan mounting plate and the connecting plates are flush with the outer surface of the air duct support box.

[0009] In one embodiment, the corner at the lower end of the right side wall of the air duct support box and the left side of the interval plate is chamfered.

[0010] In one embodiment, the lower end of the partition plate and the left side wall of the middle portion of the right side wall of the air duct support box are in a concave arc shape.

[0011] In one embodiment, three first studs are arranged horizontally side by side on the inner wall of the rear side wall of the air duct bracket box, three second studs are correspondingly arranged on the inner wall of the front side wall of the air duct bracket box, screw holes are respectively provided on the lower end of the partition plate and the right side wall of the air duct bracket box, and two through holes are provided on the front side wall of the air duct bracket box corresponding to the screw holes.

[0012] In one embodiment, the first studs at both ends are respectively located at the corners of the upper end of the rear side wall of the air duct bracket box, and the first stud in the middle is located in the middle position of the two air guide plates.

[0013] Compared with the prior art, the utility model provides a parallel cooling fan, comprising a rectangular duct support box, wherein at least two turbo fans are arranged side by side inside the duct support box, through holes are respectively provided on the front and rear side walls of the duct support box at positions corresponding to the two ends of the turbo fans, the upper and lower sides of the duct support box are respectively opened, a partition plate is provided between the two turbo fans, and the upper end of the partition plate is connected to the upper ends of the left and right walls of the duct support box respectively through air guide plates.

[0014] In this way, by designing an air duct bracket box, two or more impellers are installed in parallel inside the air duct bracket box to form a parallel turbo fan, which fills the gap in the market and is convenient for users to choose;

[0015] Secondly, integrating two or more turbo fans into one air duct bracket box is smaller in size than two independent turbo fans, which meets consumers' requirements for miniaturization of projectors. On the other hand, integrating two or more turbo fans into one air duct bracket box eliminates the original fan casing, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the first three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the second three-dimensional structure of the present utility model;

[0019] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the utility model. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means more than two, unless otherwise specifically defined.

[0022] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0025] like Figure 1-4 For the convenience of description, the directions of “up”, “down”, “left”, “right”, “front” and “back” in this utility model are based on the attached Figure 1 The directions shown shall prevail;

[0026] A parallel cooling fan comprises a rectangular duct bracket box 1, wherein two turbo fans 2 are arranged side by side inside the duct bracket box 1, and through holes are respectively provided at positions corresponding to the two ends of the turbo fans 2 on the front and rear side walls of the duct bracket box 1, and openings are respectively provided on the upper and lower sides of the duct bracket box 1, and a partition plate 3 is provided between the two turbo fans 2. The upper ends of the partition plate 3 are respectively connected to the upper ends of the left and right walls of the duct bracket box 1 corresponding to each other through air guide plates 4. By designing a duct bracket box 1, two turbo fans 2 are installed in parallel inside the duct bracket box 1, thereby forming a parallel cooling fan, which fills the gap in the market; at the same time, the two turbo fans 2 are integrated into one duct bracket box 1, which has a smaller volume than two independent turbo fans 2. On the other hand, the two turbo fans 2 are integrated into one duct bracket box 1, which eliminates the original fan casing, makes installation more convenient, and reduces costs.

[0027] In this embodiment, the air guide plate 4 is arc-shaped, and the turbofan 2 is located on the concave side of the air guide plate 4 , so the airflow generated by the turbofan 2 can flow out more smoothly from the opening at the lower end of the air duct bracket box 1 .

[0028] In this embodiment, turbofan mounting plates 5 are respectively arranged in the through holes on the rear side wall of the air duct bracket box 1, and three connecting plates 6 are respectively arranged around the turbofan mounting plate 5. One end of the three connecting plates 6 is connected to the turbofan mounting plate 5, and the other end is connected to the rear side wall of the air duct bracket box 1.

[0029] In this embodiment, the outer surfaces of the turbofan mounting plate 5 and the connecting plate 6 are flush with the outer surface of the air duct support box 1, respectively, making the turbofan mounting plate 5, the connecting plate 6 and the air duct support box 1 more compact and beautiful as a whole.

[0030] In this embodiment, the partition plate 3 and the left corner of the lower end of the right side wall of the air duct bracket box 1 are chamfered respectively, so that the airflow generated by the turbofan 2 can have a larger departure angle outward, making the airflow flow smoother.

[0031] In this embodiment, the lower end of the partition plate 3 and the left side wall of the middle part of the right side wall of the air duct bracket box 1 are concave arcs. Similarly, the concave arc design is also conducive to the smoother outward flow of the airflow generated by the turbofan 2.

[0032] In this embodiment, three first studs 7 are arranged horizontally side by side on the inner wall of the rear side wall of the duct bracket box 1, and three second studs 8 are correspondingly arranged on the inner wall of the front side wall of the duct bracket box 1. Screw holes 9 are respectively provided on the partition plate 3 and the lower end of the right side wall of the duct bracket box 1. Two through holes 10 are provided on the front side wall of the duct bracket box 1 corresponding to the screw holes 9. The connection between the front side wall and the rear side wall of the duct bracket box 1 is achieved by using the three first studs 7 and the three second studs 8 in combination with corresponding screws. Similarly, the screw holes on the partition plate 3 and the duct bracket box 1 and the two through holes 10 on the front side wall of the duct bracket box 1 corresponding to the screw holes 9 in combination with corresponding screws further strengthen the connection strength between the front side wall and the rear side wall of the duct bracket box 1.

[0033] In this embodiment, the first studs 7 at both ends are respectively located at the corners of the upper end of the rear side wall of the air duct bracket box 1, and the first stud 7 in the middle is located in the middle position of the two air guide plates 4. The three first studs 7 are arranged at equal intervals on the rear side wall of the air duct bracket box 1, so that the force between the front side wall and the rear side wall of the air duct bracket box 1 is more uniform when connected.

[0034] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A parallel cooling fan, characterized in that: It includes a rectangular air duct support box, at least two turbo fans are arranged side by side inside the air duct support box, through holes are respectively provided at positions corresponding to the two ends of the turbo fans on the front and rear side walls of the air duct support box, the upper and lower sides of the air duct support box are respectively opened, a partition plate is provided between the two turbo fans, and the upper ends of the partition plate are respectively connected to the upper ends of the left and right walls of the air duct support box corresponding to the air guide plates.

2. The parallel cooling fan according to claim 1, characterized in that: The air guide plate is in an arc shape, and the turbo fan is located on a concave side of the air guide plate.

3. The parallel cooling fan according to claim 2, characterized in that: Turbofan mounting plates are respectively arranged in the through holes on the rear side wall of the air duct bracket box, and several connecting plates are respectively arranged around the turbofan mounting plates, one end of each of the connecting plates is connected to the turbofan mounting plate, and the other end is connected to the rear side wall of the air duct bracket box.

4. The parallel cooling fan according to claim 3, characterized in that: The outer surfaces of the turbofan mounting plate and the connecting plate are respectively flush with the outer surface of the air duct support box.

5. The parallel cooling fan according to claim 4, characterized in that: The corners of the partition plate and the left side of the lower end of the right side wall of the air duct support box are chamfered respectively.

6. The parallel cooling fan according to claim 5, characterized in that: The lower end of the partition plate and the left side wall of the middle part of the right side wall of the air duct support box are in a concave arc shape.

7. The parallel cooling fan according to claim 1, characterized in that: Three first studs are arranged horizontally side by side on the inner wall of the rear side wall of the air duct bracket box, three second studs are correspondingly arranged on the inner wall of the front side wall of the air duct bracket box, screw holes are respectively provided on the lower ends of the partition plate and the right side wall of the air duct bracket box, and two through holes are provided on the front side wall of the air duct bracket box corresponding to the screw holes.

8. The parallel cooling fan according to claim 7, characterized in that: The first studs at both ends are respectively located at the corners of the upper end of the rear side wall of the air duct bracket box, and the first stud in the middle is located in the middle position of the two air guide plates.

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