Injection molding cross-flow fan blade for heat dissipation

Abstract

The utility model belongs to the technical field of cross-flow fan blades, and particularly relates to an injection molding cross-flow fan blade for heat dissipation, which comprises a plurality of arc-shaped fan blades arranged in a circumferential array, a fixing plate and a connecting plate; one end of each arc-shaped fan blade is connected with one end face of the fixing plate, and the other end of each arc-shaped fan blade is connected with one end face of the connecting plate. An annular sliding groove is formed in the cross-flow fan blade connecting plate, a notch is formed in the surface of the cross-flow fan blade connecting plate, a sliding block matched with the notch is additionally arranged on the outer wall of a filter screen, the sliding block on the filter screen penetrates through the notch, and then the filter screen is rotated, so that the sliding block on the outer wall of the filter screen can be limited in the annular sliding groove; the cross-flow fan connecting device is simple in structure and convenient to mount and dismount.

Description

Technical Field

[0001] The utility model belongs to the technical field of crossflow fan blades, and in particular relates to an injection-molded crossflow fan blade for heat dissipation. Background Art

[0002] At present, the crossflow fan blade and the motor are important components of the air conditioner, and one end of the crossflow fan blade is connected to the motor. Due to the long-term use of the air conditioner, the air will pass through the air inlet hole opened at one end of the crossflow fan blade and enter the inside of the crossflow fan blade. After long-term operation, dust will accumulate on the crossflow fan blade. In the prior art, a filter is often added to the air inlet to intercept dust to solve this problem. The connection between the filter and the crossflow fan blade is mostly threaded, which results in the nut being unscrewed when the filter needs to be disassembled for replacement and cleaning, which is inconvenient to operate.

[0003] Therefore, an injection-molded crossflow fan blade for heat dissipation is designed to solve the technical problem of complicated filter disassembly in the prior art. Utility Model Content

[0004] The utility model aims to provide an injection molded crossflow fan blade for heat dissipation to solve the above technical problems.

[0005] In order to solve the above technical problems, the utility model provides an injection molded crossflow fan blade for heat dissipation, comprising:

[0006] A plurality of arc-shaped fan blades arranged in a circular array; and

[0007] Fixed plate and connecting plate;

[0008] One end of each of the arc-shaped fan blades is connected to one end surface of the fixing plate, and the other end of each of the arc-shaped fan blades is connected to one end surface of the connecting plate; and

[0009] The connecting plate is provided with a connecting rod for connecting with the motor.

[0010] The beneficial effect of the utility model is that an annular slide groove is opened inside the crossflow fan blade connecting plate and a notch is opened on the surface, and a slider matching the notch is added to the outer wall of the filter screen. The slider on the filter screen is passed through the notch, and the filter screen is then rotated, so that the slider on the outer wall of the filter screen can be confined in the annular slide groove, and then the filter screen is connected to the crossflow fan blade connecting plate. The structure is simple and the installation and disassembly are convenient.

[0011] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0012] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is an overall stereogram of the utility model;

[0015] Figure 2 The utility model Figure 1 The enlarged structural diagram of part A in the middle;

[0016] Figure 3 The utility model Figure 1 The enlarged structural diagram of part B in the middle;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the fastener of the utility model.

[0018] In the figure:

[0019] 1. Crossflow fan blade; 10. Arc-shaped fan blade; 11. Fixing plate; 12. Connecting plate; 120. Circular groove; 121. Notch; 122. Air inlet hole; 13. Connecting rod; 130. Limiting groove; 131. Auxiliary groove;

[0020] 2. filter screen; 20. slider; 21. notch; 22. arc-shaped limit groove;

[0021] 3. Motor; 30. Driving shaft; 31. Limiting rod;

[0022] 4. Fastener; 40. Vertical portion; 401. Limiting piece; 41. Horizontal portion; 411. Resistance piece. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] At present, the crossflow fan blade and the motor are important components of the air conditioner, and one end of the crossflow fan blade is connected to the motor. Due to the long-term use of the air conditioner, the air will pass through the air inlet hole opened at one end of the crossflow fan blade and enter the inside of the crossflow fan blade. After long-term operation, dust will accumulate on the crossflow fan blade. In the prior art, a filter is often added to the air inlet to intercept dust to solve this problem. The connection between the filter and the crossflow fan blade is mostly threaded, which results in the nut being unscrewed when the filter needs to be disassembled for replacement and cleaning, which is inconvenient to operate.

[0025] In order to solve the above technical problems, in at least one embodiment, an injection molded cross-flow fan blade for heat dissipation is provided, including: a plurality of arc-shaped fan blades 10 arranged in a circular array; and a fixing plate 11 and a connecting plate 12; wherein one end of each of the arc-shaped fan blades 10 is connected to one end surface of the fixing plate 11, and the other end of each of the arc-shaped fan blades 10 is connected to one end surface of the connecting plate 12; and a connecting rod 13 is provided on the connecting plate 12 for connecting to the motor 3.

[0026] An annular groove is formed inside the crossflow fan blade connecting plate and a notch is formed on the surface, and a slider matching the notch is added to the outer wall of the filter. The slider on the filter is passed through the notch and the filter is then rotated. The slider on the outer wall of the filter can be confined in the annular groove, and the filter can be connected to the crossflow fan blade connecting plate. The structure is simple and easy to install and disassemble.

[0027] In some embodiments, the main body of the crossflow fan blade 1 is composed of a plurality of arc-shaped fan blades 10 and a fixing plate 11 and a connecting plate 12 arranged on both sides of the plurality of arc-shaped fan blades 10. Each arc-shaped fan blade 10 is an injection molded part, and a short shaft is arranged on the fixing plate 11 to connect with the internal bearing of the air conditioner. The connecting rod 13 arranged on the connecting plate 12 is connected to the motor 3, so that the motor 3 drives the main body of the crossflow fan blade 1 to rotate when started.

[0028] In some embodiments, the center of the connecting rod 13 is hollowed out to form a cylindrical connecting channel, and the inner wall of the connecting channel is in contact with the outer wall of the driving shaft 30 connected to the output end of the motor 3. In order to avoid slipping between the driving shaft 30 and the connecting rod 13, a limiting groove 130 is opened on the outer wall of the connecting channel on the connecting rod 13, and a limiting rod 31 that matches the limiting groove 130 is fixed on the outer wall of the driving shaft 30. When the driving shaft 30 is inserted into the connecting channel, the limiting rod 31 is inserted into the limiting groove 130 to avoid slipping between the driving shaft 30 and the connecting rod 13 when rotating.

[0029] In some embodiments, a plurality of air inlet holes 122 are provided on the connecting plate 12. Figure 2It can be seen that the interior of the connecting plate 12 is hollowed out to form a circular groove 120, and a placement opening directly identical to the filter screen 2 is opened on one end face of the connecting plate 12 and the arc-shaped fan blade 10, and a notch 121 is opened on the outside of the placement opening, and a through channel 21 is opened in the center of the filter screen 2. During installation, the connecting rod 13 is passed through the through channel 21, and passes through the placement opening through the filter screen 2 and into the circular groove 120 inside the connecting plate 12. At this time, the slider 20 on the outside of the filter screen 2 passes through the notch 121 and enters the circular groove 120. The filter screen 2 is manually rotated so that the slider 20 is misaligned with the notch, and then the slider 20 is stuck in the circular groove 120 to fix the filter screen 2 inside the connecting plate 12 and cover the air inlet 122 opened on the connecting plate 12.

[0030] In some embodiments, in order to prevent the filter screen 2 from slipping while following the rotation of the crossflow fan blade 1, causing the slider 20 to slide to the notch 121, thereby causing the filter screen 2 to slide out of the circular groove 120, an auxiliary groove 131 is provided on the connecting rod 13, and the auxiliary groove 131 connects the outer wall of the connecting rod 13 and the connecting channel. After the filter screen 2 is inserted into the circular groove 120 in the above steps, the vertical portion 40 of the fastener 4 is manually inserted into the auxiliary groove 131, and the bottom end of the vertical portion 40 is located in the limiting groove 130. The limiting piece 401 is used to limit the distance of the vertical portion 40 inserted into the limiting groove 130. At this time, the drive The moving shaft 30 is inserted into the connecting channel, and when the limiting rod 31 slides in the limiting groove 130, the vertical part 40 is pushed to slide in the auxiliary groove 131 close to the filter 2. At this time, the horizontal part 41 is inserted into the arc-shaped limiting groove 22 opened on the filter 2, and the resistance sheet 411 is in contact with the surface of the filter 2. Since the driving shaft 30 is tightly connected to the connecting rod 13, the resistance sheet 411 generates friction with the surface of the filter 2 after being in contact with the surface of the filter 2, and the horizontal part 31 is inserted into the arc-shaped limiting groove 22 for limiting, so as to avoid the filter 2 from slipping and sliding out due to slipping with the connecting plate 12 during rotation.

[0031] To summarize, by opening an annular groove inside the crossflow fan blade connecting plate and a notch on the surface, and adding a slider that matches the notch on the outer wall of the filter, the slider on the filter is passed through the notch, and the filter is then rotated, so that the slider on the outer wall of the filter can be confined in the annular groove, and then the filter is connected to the crossflow fan blade connecting plate. The structure is simple and easy to install and disassemble.

[0032] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0035] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0036] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0037] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An injection molded crossflow fan blade for heat dissipation, characterized in that: include: A plurality of arc-shaped fan blades arranged in a circular array; as well as Fixed plate and connecting plate; in One end of each of the arc-shaped fan blades is connected to one end surface of the fixing plate, and the other end of each of the arc-shaped fan blades is connected to one end surface of the connecting plate; and The connecting plate is provided with a connecting rod to connect with the motor; The center of the connecting rod is hollowed out to form a connecting channel for connecting with the motor; in A limiting groove is provided on the inner wall of the connecting channel; The output end of the motor is connected to a drive shaft; and A limit rod is arranged on the outer wall of the driving shaft; The limiting rod cooperates with the limiting groove so that after the driving shaft is inserted into the connecting channel, the connecting rod is driven to rotate by the motor; The interior of the connecting plate is hollowed out to form a circular groove, and a notch is provided on a surface thereof away from the arc-shaped fan blades; in A filter screen is provided at the inner hollow portion of the connecting plate; The filter comprises: A slider is arranged on the outer wall of the filter; in The sliding block fits into the notch; A through passage having a diameter equal to that of the connecting rod is provided in the center of the filter screen; and The filter screen is provided with an arc-shaped limiting groove on the outer side of the through channel.

2. The injection molded crossflow fan blade for heat dissipation according to claim 1, characterized in that: The connecting rod is provided with an auxiliary groove; The auxiliary groove is located above the limiting groove and penetrates the limiting groove; and A fastener is slidably connected in the auxiliary groove.

3. The injection molded crossflow fan blade for heat dissipation according to claim 2, characterized in that: The fastener comprises: A vertical portion is located in the auxiliary groove, and a bottom end of the vertical portion passes through the auxiliary groove and is located in the limiting groove; and A limiting piece is arranged on the outer wall of the vertical portion, and the limiting piece is slidably connected to the outer wall of the connecting rod; A horizontal portion; one end of which is connected to the top of the vertical portion, and a resistance sheet is provided on its outer wall; wherein The diameter of the horizontal portion is smaller than the width of the arc-shaped limiting groove; and The width of the resistance sheet is greater than the width of the arc-shaped limiting groove.

4. The injection molded crossflow fan blade for heat dissipation according to claim 3, characterized in that: The connecting plate is provided with a plurality of air inlet holes.

5. The injection molded crossflow fan blade for heat dissipation according to claim 4, characterized in that: The arc-shaped fan blades are injection-molded parts.

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