Fan blade support and fan

Abstract

The utility model discloses a fan blade support and a fan. The fan blade support comprises a first supporting structure and a second supporting structure, the second supporting structure comprises a second supporting piece, the second supporting piece is arranged on the front side of the first supporting piece and detachably connected with the first supporting piece, at least two limiting clamping holes are defined between the outer side portion of the first supporting piece and the outer side portion of the second supporting piece, and the limiting clamping holes are used for clamping fan blades of a fan. A driving assembly of the fan is installed between the first supporting structure and the second supporting structure.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a blade support and a fan. Background Art

[0002] The blade supports in the existing fans are generally integrally formed by plastic, and then are installed together with a motor support and a motor. The structure is complex, there are many spare parts, and the cost is relatively high. Moreover, the blade support integrally formed by plastic is easy to deform, with poor precision, and the installation precision between the blade support and the motor support cannot be adjusted during installation or use, resulting in a reduction in the performance of the fan and making it difficult to meet the requirements.

[0003] Therefore, there is an urgent need for a blade support to solve the above problems. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the utility model provides a blade support with a simple structure, which can enable the fan to have better running stability and ensure the performance of the fan.

[0005] The above object is achieved by the following technical solutions:

[0006] A blade support, comprising:

[0007] A first support structure, including a first support member;

[0008] A second support structure, including a second support member, the second support member is arranged on the front side of the first support member and is detachably connected to the first support member. At least two limiting card holes are formed by enclosing between the outer side of the first support member and the outer side of the second support member. The limiting card holes are used for clamping the blades of the fan, and the driving assembly of the fan is installed between the first support structure and the second support structure.

[0009] Optionally, both the first support structure and the second support structure are metal parts.

[0010] Optionally, the first support structure is integrally formed, and the second support structure is integrally formed.

[0011] Optionally, the second support member includes a first limiting member and a plurality of second limiting members arranged on the outer peripheral side of the first limiting member. The first limiting member is located on the front side of the first support member and is spaced from the first support member. The second limiting members extend from front to back, and a card hole opening of the limiting card hole is formed between two adjacent second limiting members.

[0012] Optionally, the first support structure further includes a motor accommodation groove provided in the middle of the first support member, the opening of the accommodation groove facing forward, and the motor accommodation groove is used to accommodate the drive motor of the drive assembly.

[0013] Optionally, a first motor bearing accommodation groove with an opening facing forward is provided in the middle of the motor accommodation groove, the first motor bearing accommodation groove is used to accommodate the first motor bearing of the drive assembly, and a first shaft hole for installing a rotating shaft is provided in the middle of the bottom of the first motor bearing accommodation groove.

[0014] Optionally, a ventilation hole communicating the motor accommodation groove with the outside of the fan blade support is further provided in the bottom of the motor accommodation groove.

[0015] Optionally, a ventilation vane is further provided at the ventilation hole in the bottom of the motor accommodation groove, one end of the ventilation vane is connected to one side wall of the ventilation hole, and the other end extends from front to back in a direction away from the bottom of the motor accommodation groove.

[0016] Optionally, the second support structure further includes a second motor bearing accommodation groove provided in the middle of the second support member, the opening of the second motor bearing accommodation groove facing backward, the second motor bearing accommodation groove is used to accommodate the second motor bearing of the drive assembly, and a second shaft hole for installing the rotating shaft of the drive assembly is provided in the middle of the bottom of the second motor bearing accommodation groove.

[0017] Optionally, the second support structure further includes heat dissipation holes provided on the second support member.

[0018] On the other hand, the present utility model provides a fan, including at least two fan blades, a drive motor, a rotating bearing, and the above-mentioned fan blade support. The fan blades are arranged in one-to-one correspondence with the limit card holes, the fan blades are detachably installed in the limit card holes, and the drive motor and the rotating bearing are both installed in the fan blade support.

[0019] Optionally, a first clamping structure is further provided on the first support member at the position of the limit card hole. The fan blade includes a fan blade body and a connecting portion provided at one end of the fan blade body. A second clamping structure is provided on the connecting portion, and the first clamping structure is clamped with the second clamping structure.

[0020] Optionally, the first clamping structure includes a first clamping hole and a second clamping hole. The second clamping hole is provided on the outer peripheral side of the first support member. The first clamping hole is provided inside the second clamping hole and is spaced from the second clamping hole. A clamping block is formed between the first clamping hole and the second clamping hole. The second clamping structure includes an avoidance hole formed in the connecting portion and an elastic clamping structure provided in the avoidance hole. The elastic clamping structure includes an elastic block and a first clamping block and a second clamping block provided on the rear side of the elastic block. One end of the elastic block away from the fan blade body is connected to the connecting portion. The first clamping block and the second clamping block are spaced apart. The first clamping block is provided at one end of the elastic block away from the fan blade body. The second clamping block is provided at one end of the elastic block close to the fan blade body. A clamping groove corresponding to the clamping block is formed between the first clamping block and the second clamping block. The first clamping block is inserted into the first clamping hole and is not protruded from the rear side surface of the first support member. The second clamping block is inserted into the second clamping hole and protrudes from the rear side surface of the first support member.

[0021] Compared with the prior art, the present utility model at least includes the following beneficial effects:

[0022] By setting the first support structure and the second support structure of the fan blade support provided by the present utility model to be detachably connected, it can ensure the fitting installation with the fan blade, and at the same time facilitate the separate preparation between the first support structure and the second support structure and the installation alignment with the driving component of the fan, thereby improving the alignment accuracy of the structure. Compared with the prior art where plastic is integrally formed, the integrally formed plastic structure has a large error, which will lead to a low installation accuracy, resulting in a poor coaxiality between the driving motor of the fan and the fan blade support, and thus affecting the performance of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is one of the assembly schematic diagrams of the fan blade support and the fan blade provided by the present utility model;

[0024] Figure 2 is another assembly schematic diagram of the fan blade support and the fan blade provided by the present utility model;

[0025] Figure 3 is one of the three-dimensional structure schematic diagrams of the fan blade support provided by the present utility model;

[0026] Figure 4 is another three-dimensional structure schematic diagram of the fan blade support provided by the present utility model;

[0027] Figure 5 is the exploded view of the fan blade support provided by the present utility model;

[0028] Figure 6It is the front view of the fan blade support provided by the present utility model;

[0029] Figure 7 It is Figure 6 the cross-sectional view taken along the line A-A in

[0030] Figure 8 It is the three-dimensional structure schematic diagram of the fan blade provided by the present utility model.

[0031] In the figure:

[0032] 100, fan blade support; 1, first support structure; 11, first support member; 1011, first card hole; 1012, second card hole; 102, air guide hole; 103, first mounting hole; 104, first shaft hole; 105, motor accommodation groove; 106, first motor bearing accommodation groove; 121, air guide piece;

[0033] 2, second support structure; 21, second support member; 211, first limiting member; 212, second limiting member; 201, heat dissipation hole; 202, second shaft hole; 203, second mounting hole; 204, second motor bearing accommodation groove;

[0034] 300, limiting card hole; 301, card hole opening;

[0035] 200, fan blade; 2010, fan blade body; 2020, connecting portion; 2030, avoidance hole; 2040, elastic clamping structure; 20410, elastic block; 20420, first clamping block; 20430, second clamping block. Specific embodiments

[0036] The following embodiments are used to illustrate the present utility model, but the present utility model is not limited by these embodiments. Modifying the specific implementation manners of the present utility model or equivalently replacing some technical features without departing from the spirit of the present utility model scheme shall all be covered within the scope of the technical solution claimed by the present utility model.

[0037] Please refer to Figures 1-8 , the present utility model provides a fan blade support, including a first support structure 1 and a second support structure 2. The first support structure 1 includes a first support member 11. The second support structure 2 includes a second support member 21. The second support member 21 is arranged on the front side of the first support member 11 and is detachably connected to the first support member 11. At least two limiting card holes 300 are formed by enclosing between the outer side portions of the first support member 11 and the second support member 21. The limiting card holes 300 are used for clamping the fan blade 200 of the fan, and the driving assembly (not shown in the figure) of the fan is installed between the first support structure 1 and the second support structure 2.

[0038] The blade support 100 provided by the present utility model can ensure the mating installation with the blade 200 by setting the first support structure 1 and the second support structure 2 to be detachably connected. At the same time, it is convenient for the separate preparation between the first support structure 1 and the second support structure 2 and the installation alignment with the drive assembly of the fan, thereby improving the alignment accuracy of the structure. Compared with the prior art where plastic is integrally formed, the integrally formed plastic structure has a large error, which will lead to a low installation accuracy, resulting in a poor coaxiality between the drive motor of the fan and the blade support 100, and thus affecting the performance of the fan.

[0039] Optionally, both the first support structure 1 and the second support structure 2 are metal parts. The metal parts have strong hardness. The detachable first support structure 1 and second support structure 2 are conducive to separate preparation, with a high installation accuracy. The coaxiality between the drive motor of the fan and the blade support 100 is good, thereby ensuring the operating performance of the fan.

[0040] Optionally, the first support structure 1 is integrally formed, and the second support structure 2 is integrally formed. The structure is simple and has good strength.

[0041] Optionally, the second support member 21 includes a first limiting member 211 and a plurality of second limiting members 212 arranged on the outer peripheral side of the first limiting member 211. The first limiting member 211 is located on the front side of the first support member 11 and is spaced from the first support member 11. The second limiting members 212 extend from front to back. A card hole opening 301 of the limiting card hole 300 is formed between two adjacent second limiting members 212. The blade 200 is inserted into the limiting card hole 300 through this opening.

[0042] Optionally, the first support structure 1 further includes a motor accommodating groove 105 provided in the middle of the first support member 11. The opening of the accommodating groove faces forward. The motor accommodating groove 105 is used to accommodate the drive motor of the drive assembly. Compared with the prior art where a separate drive motor support is provided to cooperate with the blade support 100 to install and fix the drive motor of the fan, in this embodiment, the drive motor of the fan is directly installed in the blade support 100 without the need to additionally provide a drive motor support, which has the advantages of simple structure and few parts.

[0043] Optionally, a first motor bearing accommodating groove 106 with an opening facing forward is provided in the middle of the motor accommodating groove 105. The first motor bearing accommodating groove 106 is used to accommodate the first motor bearing of the drive assembly. A first shaft hole 104 for installing the rotating shaft is opened in the middle of the bottom of the first motor bearing accommodating groove 106.

[0044] Optionally, an air guiding hole 102 communicating the bottom of the motor accommodation groove 105 with the outside of the fan support 100 is further provided at the bottom of the motor accommodation groove 105, so that the cold air outside the fan support 100 can enter the motor accommodation groove 105 to dissipate heat from the motor.

[0045] Optionally, an air guiding piece 121 is further provided at the bottom of the motor accommodation groove 105 at the position of the air guiding hole 102. One end of the air guiding piece 121 is connected to one side wall of the air guiding hole 102, and the other end extends from front to back in a direction away from the bottom of the motor accommodation groove 105, so as to achieve the guiding effect of guiding the cold air outside the support of the fan 200 into the motor accommodation groove 105.

[0046] Optionally, the second support structure 2 further includes a second motor bearing accommodation groove 204 provided in the middle of the second support 21. The opening of the second motor bearing accommodation groove 204 faces backward. The second motor bearing accommodation groove 204 is used to accommodate the second motor bearing of the driving assembly. A second shaft hole 202 for installing the rotating shaft of the driving assembly is provided in the middle of the bottom of the second motor bearing accommodation groove 204.

[0047] Optionally, the second support structure 2 further includes a heat dissipation hole 201 provided on the second support 21. When the driving motor of the fan rotates, a negative pressure is formed in the motor accommodation groove 105, driving the cold air outside the support of the fan 200 to enter the motor accommodation groove 105 through the guiding of the air guiding piece 121 from the air guiding hole 102, taking away the heat of the driving motor, and then discharging from the heat dissipation hole 201, so as to achieve the heat dissipation effect on the driving motor.

[0048] Optionally, a plurality of heat dissipation holes 201 are provided, and the plurality of heat dissipation holes 201 are uniformly arranged on the periphery of the second motor bearing accommodation groove 204.

[0049] Optionally, a first mounting hole 103 is further provided on the first support 11, and a second mounting hole 203 is further provided on the second support 21. The first support 11 and the second support 21 are detachably connected by screws passing through the first mounting hole 103 and the second mounting hole 203 in sequence.

[0050] Furthermore, a limiting boss is further provided on the side of the first mounting hole 103 facing the second support 21. The first mounting hole 103 penetrates through the first support 11 and the limiting boss. The front side of the limiting boss abuts against the second support 21 to limit the gap between the first support 11 and the second support 21, so as to facilitate the formation of the limiting card hole 300.

[0051] On the other hand, the present utility model provides a fan, which includes at least two fan blades 200, a driving assembly, and the above-mentioned fan blade support 100. The fan blades 200 are arranged in one-to-one correspondence with the limit card holes 300. The fan blades 200 are detachably installed in the limit card holes 300, and the driving assembly is installed in the fan blade support 100.

[0052] Optionally, the driving assembly includes a driving motor, a rotating shaft, a first motor bearing, and a second motor bearing.

[0053] Optionally, the rotating shaft bearing includes a first motor bearing and a second motor bearing. The first motor bearing is installed in the first motor bearing accommodation groove 106, and the second motor bearing is installed in the second motor bearing accommodation groove 204. The first motor bearing and the second motor bearing are arranged oppositely and are limited by the first motor bearing accommodation groove 106 and the second motor bearing accommodation groove 204, having good installation stability and being able to better ensure the installation accuracy of the driving motor in the fan blade support 100.

[0054] Further, the driving motor is installed in the motor accommodation groove 105, and the rotating shaft sequentially passes through the first shaft hole 104 and the second shaft hole 202.

[0055] Optionally, the first support member 11 is further provided with a first clamping structure at the limit card hole 300. The fan blade 200 includes a fan blade 200 body and a connecting portion 2020 provided at one end of the fan blade 200 body. The connecting portion 2020 is provided with a second clamping structure. The first clamping structure is clamped with the second clamping structure, thereby realizing the detachable connection between the fan blade 200 and the fan blade support 100.

[0056] Optionally, the first clamping structure includes a first clamping hole 1011 and a second clamping hole 1012. The second clamping hole 1012 is disposed on the outer peripheral side of the first support member 11. The first clamping hole 1011 is disposed inside the second clamping hole 1012 and is spaced apart from the second clamping hole 1012. A clamping block is formed between the first clamping hole 1011 and the second clamping hole 1012. The second clamping structure includes an avoidance hole 2030 formed in the connecting portion 2020 and an elastic clamping structure 2040 disposed in the avoidance hole 2030. The elastic clamping structure 2040 includes an elastic block 20410 and a first clamping block 20420 and a second clamping block 20430 disposed on the rear side of the elastic block 20410. One end of the elastic block 20410 away from the main body of the fan blade 200 is connected to the connecting portion 2020. The first clamping block 20420 and the second clamping block 20430 are spaced apart. The first clamping block 20420 is disposed at one end of the elastic block 20410 away from the main body of the fan blade 200. The second clamping block 20430 is disposed at one end of the elastic block 20410 close to the main body of the fan blade 200. A clamping groove corresponding to the clamping block is formed between the first clamping block 20420 and the second clamping block 20430. The first clamping block 20420 is inserted into the first clamping hole 1011 and is not protruded from the rear side surface of the first support member 11. The second clamping block 20430 is inserted into the second clamping hole 1012 and protrudes from the rear side surface of the first support member 11. When installing the fan blade 200 onto the fan blade support 100, the connecting portion 2020 of the fan blade 200 is inserted into the limit clamping hole 300, so that the first clamping block 20420 is inserted into the first clamping hole 1011 and the second clamping block 20430 is inserted into the second clamping hole 1012, thereby realizing the installation between the fan blade 200 and the fan blade support 100. When removing the fan blade 200 from the fan blade support 100, press the second clamping block 20430 forward, so that one end of the elastic block 20410 close to the main body of the fan blade 200 swings forward relative to the connecting portion 2020, and further enables the second clamping block 20430 to be disengaged from the second clamping hole 1012 and the first clamping block 20420 to be disengaged from the first clamping hole 1011, and then the fan blade 200 is removed from the fan blade support 100.

[0057] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A fan blade support, characterized in that: include: A first supporting structure (1), comprising a first supporting member (11); The second support structure (2) comprises a second support member (21), wherein the second support member (21) is arranged on the front side of the first support member (11) and is detachably connected to the first support member (11), and at least two limiting clamping holes (300) are formed between the outer side of the first support member (11) and the outer side of the second support member (21), and the limiting clamping holes are used to clamp the fan blades (200), and the drive assembly of the fan is installed between the first support structure (1) and the second support structure (2).

2. The fan blade support according to claim 1, characterized in that: The first supporting structure (1) and the second supporting structure (2) are both metal parts.

3. The fan blade support according to claim 2, characterized in that: The first supporting structure (1) is integrally formed, and the second supporting structure (2) is integrally formed.

4. The fan blade support according to claim 1, characterized in that: The second support member (21) comprises a first limiting member (211) and a plurality of second limiting members (212) arranged on the outer peripheral side of the first limiting member (211), the first limiting member (211) being located on the front side of the first support member (11) and spaced apart from the first support member (11), the second limiting member (212) extending from the front to the back, and a clamping hole opening (301) of the limiting clamping hole (300) being formed between two adjacent second limiting members (212).

5. The fan blade support according to any one of claims 1 to 4, characterized in that: The first support structure (1) further comprises a motor accommodating groove (105) arranged in the middle of the first support member (11), the opening of the motor accommodating groove (105) being arranged towards the front, and the motor accommodating groove (105) being used for accommodating a driving motor of the driving assembly.

6. The fan blade support according to claim 5, characterized in that: A first motor bearing accommodating groove (106) is provided in the middle of the motor accommodating groove (105) and is opened toward the front. The first motor bearing accommodating groove (106) is used to accommodate the first motor bearing of the driving component. A first shaft hole (104) for installing the rotating shaft of the driving component is provided in the middle of the bottom of the first motor bearing accommodating groove (106).

7. The fan blade support according to claim 5, characterized in that: The bottom of the motor accommodating groove (105) is also provided with an air guide hole (102) connecting the motor accommodating groove (105) and the outside of the fan blade support.

8. The fan blade support according to claim 7, characterized in that: The bottom of the motor accommodating groove (105) is also provided with an air guide plate (121) located at the air guide hole (102); one end of the air guide plate (121) is connected to a side wall of the air guide hole (102), and the other end is extended from front to back in a direction away from the bottom of the motor accommodating groove (105).

9. The fan blade support according to any one of claims 1 to 4, characterized in that: The second supporting structure (2) further comprises a second motor bearing accommodating groove (204) arranged in the middle of the second supporting member (21); the opening of the second motor bearing accommodating groove (204) is arranged toward the rear; the second motor bearing accommodating groove (204) is used to accommodate the second motor bearing of the driving assembly; a second shaft hole (202) for mounting a rotating shaft is provided in the middle of the groove bottom of the second motor bearing accommodating groove (204).

10. The fan blade support according to any one of claims 1 to 4, characterized in that: The second supporting structure (2) further comprises a heat dissipation hole (201) arranged on the second supporting member (21).

11. A fan, characterized in that: It comprises at least two fan blades (200), a driving motor, a rotating bearing and the fan blade support (100) as described in any one of claims 1 to 10, wherein the fan blades (200) are arranged in a one-to-one correspondence with the limiting card holes (300), the fan blades (200) are detachably installed in the limiting card holes (300), and the driving motor and the rotating bearing are both installed in the fan blade support (100).

12. The fan according to claim 11, characterized in that The first support member (11) is also provided with a first clamping structure located at the limiting clamping hole (300); the fan blade (200) comprises a fan blade body (2010) and a connecting portion (2020) arranged at one end of the fan blade body (2010); a second clamping structure is arranged on the connecting portion (2020); and the first clamping structure is clamped with the second clamping structure.

13. The fan according to claim 12, characterized in that The first clamping structure comprises a first clamping hole (1011) and a second clamping hole (1012), the second clamping hole (1012) being arranged on the outer peripheral side of the first support member (11), the first clamping hole (1011) being arranged on the inner side of the second clamping hole (1012) and being spaced apart from the second clamping hole (1012), a clamping block (112) being formed between the first clamping hole (1011) and the second clamping hole (1012), the second clamping structure comprises an avoidance hole (2030) provided on the connecting portion (2020) and an elastic clamping structure (2040) provided in the avoidance hole (2030), the elastic clamping structure (2040) comprising an elastic block (20410) and a first clamping block (20420) and a second clamping block (20430) provided on the rear side of the elastic block (20410), the elastic block (20410) being away from the avoidance hole (2030) and the elastic block (20430) being arranged on the rear side of the elastic block (20410), the elastic block (20410) being away from the avoidance hole (2030) and the elastic block (20430) being spaced apart from the avoidance hole (2030). One end of the fan blade body (2010) is connected to the connecting portion (2020), the first clamping block (20420) and the second clamping block (20430) are arranged at intervals, the first clamping block (20420) is arranged at an end of the elastic block (20410) away from the fan blade body (2010), and the second clamping block (20430) is arranged at an end of the elastic block (20410) close to the fan blade body (2010), a clamping groove corresponding to the clamping block (112) is formed between the first clamping block (20420) and the second clamping block (20430), the first clamping block (20420) is clamped into the first clamping hole (1011) and does not protrude from the rear side of the first support member (11), and the second clamping block (20430) is clamped into the second clamping hole (1012) and protrudes from the rear side of the first support member (11).

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