Energy-saving direct-current brushless fan

Abstract

The utility model discloses an energy-saving direct-current brushless fan which comprises two mounting plates which are symmetrically arranged front and back, connecting rods are fixedly installed at the four corners of the inner walls of the two mounting plates, a driving assembly is installed on the rear wall of the mounting plate located on the rear portion, and connecting plates are fixedly installed on the left side and the right side of the inner walls of the two mounting plates. Fan blades are installed on the inner wall of the connecting plate through connecting assemblies. The utility model relates to the technical field of brushless fans. According to the energy-saving type direct-current brushless fan, through mutual cooperation of the connecting assembly and the driving assembly, when the whole device is used, installation and connection between the fan blades and the direct-current motor are rapidly achieved, the overall installation and connection process is simple and convenient, and the fan blades and the direct-current motor are arranged through the supporting assembly; and during use, good stability is achieved, and the problem of driving deviation is prevented.

Description

Technical Field

[0001] This utility model relates to the field of brushless fan technology, specifically an energy-saving DC brushless fan. Background Technology

[0002] An energy-saving DC brushless fan is a type of fan that uses a DC brushless motor. It features high efficiency, energy saving, and quiet operation. Its core component is a digital brushless DC external rotor motor, which uses electronic commutation technology to drive the fan rotation.

[0003] The aforementioned technologies have certain shortcomings in their use: brushless fans generally mount the blades directly on the output shaft of the motor. When the blades rotate, dust gradually accumulates on their surface, causing the overall center of the blades to become unstable. Under the drive of the motor, centrifugal force at a certain angle will occur, posing a risk of damage.

[0004] Therefore, this utility model provides an energy-saving DC brushless fan to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an energy-saving DC brushless fan, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an energy-saving DC brushless fan, comprising two mounting plates arranged symmetrically front and rear, with connecting rods fixedly installed at the four corners of the inner walls of the two mounting plates, a drive assembly installed on the rear wall of the mounting plate located at the rear, and connecting plates fixedly installed on the left and right sides of the inner walls of the two mounting plates, with fan blades installed on the inner walls of the connecting plates through the connecting assembly;

[0007] The connecting assembly includes a connecting frame, which is fixedly installed on the inner wall of the connecting plate. The front wall of the connecting frame has a receiving groove, and the rear wall of the receiving groove has a through hole. A drive shaft is fixedly installed at the center of the rear wall of the fan blade. The rear end of the drive shaft is fixedly connected to the drive assembly. A number of positioning grooves are evenly distributed on the inner wall of the receiving groove. A number of positioning holes are evenly distributed on the front wall of the connecting frame. A mounting base is installed on the inner wall of the receiving groove. Positioning blocks are fixedly installed on the outer wall of the mounting base at positions corresponding to the positioning grooves. A steering bearing is fixedly installed on the inner wall of the mounting base. The inner wall of the steering bearing is fixedly connected to the outer wall of the drive shaft. A positioning ring is fixedly installed on the front wall of the mounting base. Positioning seats are fixedly installed on the rear wall of the positioning ring at positions corresponding to the positioning holes.

[0008] The above technical solution, through the setting of the connecting components, enables the rapid installation and fixing of the wind turbine blades, improves the support of the wind turbine blades, and avoids the problem of center displacement during operation.

[0009] Furthermore, the outer walls of several positioning blocks are fitted with the inner walls of the corresponding positioning grooves, the outer walls of several positioning seats are fitted with the inner walls of the corresponding positioning holes, the positioning grooves are offset from the corresponding positioning holes, and the outer wall of the drive shaft is fitted with the inner wall of the through hole.

[0010] Through the above technical solution, the positioning block enters the inner wall of the corresponding positioning groove, and the positioning seat is located inside the corresponding positioning hole, which improves the stability of the installation.

[0011] Furthermore, the drive assembly includes a DC motor, and the outer wall of the mounting plate at the rear has a mounting opening, the inner wall of which is fixedly mounted with a mounting bracket, and the rear wall of the mounting bracket is fixedly connected to the DC motor.

[0012] With the above technical solution, the DC motor is fixedly installed on the mounting bracket and electrically connected to an external controller during use. The rotation speed of the DC motor is adjusted in real time according to the external temperature during operation, which has a good energy-saving effect.

[0013] Furthermore, the DC motor's power shaft is fixedly mounted with a connector via a bearing through a mounting bracket. A stud is fixedly mounted on the front wall of the connector, and a square hole is provided on the front wall of the stud.

[0014] Through the above technical solution, the DC motor can drive the connector and stud to rotate.

[0015] Furthermore, a sleeve post is fixedly installed at the rear end of the drive shaft, and a square rod is fixedly installed at the rear end of the sleeve post, with the outer wall of the square rod fitting against the inner wall of the square hole.

[0016] Through the above technical solution, the sleeve post can drive the square rod into the square inner wall to abut and fix it, thereby driving the square rod to rotate when the stud rotates.

[0017] Furthermore, a screw cylinder is slidably fitted onto the outer wall of the sleeve post, the inner wall of the screw cylinder is screwed onto the outer wall of the screw post, and a hexagonal seat is fixedly installed on the outer wall of the screw cylinder.

[0018] The above technical solution involves using a hexagonal base to drive a screw barrel to be screwed onto the external position of the stud.

[0019] Furthermore, mounting ears are fixedly installed at the four corners of the outer wall of both mounting plates, and the mounting plate at the front has a circular groove, with a guardrail screwed into the inner wall of the groove.

[0020] The above technical solution enables the entire device to be installed in the corresponding position by fastening bolts through the installation ear.

[0021] Beneficial effects

[0022] This invention provides an energy-saving DC brushless fan. Compared with the prior art, it has the following advantages:

[0023] Beneficial effects:

[0024] (1) The energy-saving DC brushless fan, through the cooperation of the connecting component and the drive component, can quickly realize the installation connection between the fan blade and the DC motor when using the whole device. The overall installation connection process is relatively simple. Furthermore, the support assembly is set between the two, which has good stability during use and prevents the problem of drive offset. Attached Figure Description

[0025] Figure 1 This is a front view of the external structure of this utility model;

[0026] Figure 2 This is a rear view of the external structure of this utility model;

[0027] Figure 3 The internal structure of the connecting component of this utility model exploded. Figure 1 ;

[0028] Figure 4 This is an exploded view of the internal structure of the drive component of this utility model;

[0029] Figure 5 This is an exploded view of the internal structure of the drive component of this utility model.

[0030] Figure 6 The internal structure of the connecting component of this utility model exploded. Figure 2 .

[0031] In the diagram: 1. Mounting plate; 2. Connecting rod; 3. Connecting plate; 4. Mounting ear; 5. Circular groove; 6. Guardrail; 7. Fan blade; 8. Connecting assembly; 81. Connecting frame; 82. Receiving groove; 83. Positioning groove; 84. Through hole; 85. Positioning hole; 86. Mounting seat; 87. Positioning block; 88. Steering bearing; 89. Positioning ring; 810. Positioning seat; 811. Drive shaft; 9. Drive assembly; 91. Mounting port; 92. Fixing frame; 93. DC motor; 94. Connector; 95. Stud; 96. Square hole; 97. Screw; 98. Hexagonal seat; 99. Square rod; 910. Sleeve post. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1:

[0034] Please see Figures 1-6 An energy-saving DC brushless fan includes two mounting plates 1 arranged symmetrically front and rear. Connecting rods 2 are fixedly installed at the four corners of the inner wall of the two mounting plates 1. A drive assembly 9 is installed on the rear wall of the mounting plate 1 located at the rear. Connecting plates 3 are fixedly installed on the left and right sides of the inner wall of the two mounting plates 1. Fan blades 7 are installed on the inner wall of the connecting plate 3 through the connecting assembly 8.

[0035] The connecting assembly 8 includes a connecting frame 81, which is fixedly installed on the inner wall of the connecting plate 3. The front wall of the connecting frame 81 has a receiving groove 82, and the rear wall of the receiving groove 82 has a through hole 84. A drive shaft 811 is fixedly installed at the center of the rear wall of the fan blade 7, and the rear end of the drive shaft 811 is fixedly connected to the drive assembly 9. The inner wall of the receiving groove 82 has a plurality of evenly distributed positioning grooves 83, and the front wall of the connecting frame 81 has a plurality of evenly distributed positioning holes 85. A mounting base 86 is installed on the inner wall of the receiving groove 82, and positioning holes 85 are fixedly installed on the outer wall of the mounting base 86 at positions corresponding to the positioning grooves 83. A steering bearing 88 is fixedly installed on the inner wall of the mounting base 86. The inner wall of the steering bearing 88 is fixedly connected to the outer wall of the drive shaft 811. A positioning ring 89 is fixedly installed on the front wall of the mounting base 86. A positioning seat 810 is fixedly installed on the rear wall of the positioning ring 89 at the position corresponding to the positioning hole 85. The outer walls of several positioning blocks 87 are all in contact with the inner walls of the corresponding positioning grooves 83. The outer walls of several positioning seats 810 are all in contact with the interior of the corresponding positioning holes 85. Several positioning grooves 83 are all staggered with the corresponding positioning holes 85. The outer wall of the drive shaft 811 is in contact with the inner wall of the through hole 84.

[0036] In this embodiment of the utility model, the purpose of this arrangement is that the connecting component 8, by detachably installing the fan blades 7 on the connecting frame 81, provides installation support for the transmission shaft 811. When some dust and impurities fall on the surface, they will not affect the rotation center offset of the transmission shaft 811, thereby improving the working stability of the fan blades 7. The overall installation process is relatively simple and convenient for operators to use.

[0037] Example 2:

[0038] Please see Figures 1-6This embodiment provides a technical solution based on Embodiment 1: the drive assembly 9 includes a DC motor 93, and a mounting port 91 is provided on the outer wall of the mounting plate 1 located at the rear. A fixing bracket 92 is fixedly installed on the inner wall of the mounting port 91. The rear wall of the fixing bracket 92 is fixedly connected to the DC motor 93. The power shaft of the DC motor 93 passes through the fixing bracket 92 via a bearing and is fixedly installed with a connector 94. A stud 95 is fixedly installed on the front wall of the connector 94, and a square hole 96 is provided on the front wall of the stud 95. A sleeve post 910 is fixedly installed at the rear end of shaft 811. A square rod 99 is fixedly installed at the rear end of sleeve post 910. The outer wall of square rod 99 fits against the inner wall of square hole 96. A screw cylinder 97 is slidably sleeved on the outer wall of sleeve post 910. The inner wall of screw cylinder 97 is screwed to the outer wall of screw post 95. A hexagonal seat 98 is fixedly installed on the outer wall of screw cylinder 97. Mounting ears 4 are fixedly installed at the four corners of the outer walls of two mounting plates 1. A circular groove 5 is opened on the mounting plate 1 at the front. A guardrail 6 is screwed to the inner wall of the circular groove 5.

[0039] In this embodiment of the utility model, the purpose of this arrangement is that the drive component 9 is configured so that the power shaft of the connecting component 8 and the DC motor 93 can be detachably installed during operation, and the DC motor 93 can be controlled by an external controller to operate, and the working state of the DC motor 93 can be adjusted in real time according to the external ambient temperature, which has a good energy-saving effect.

[0040] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0041] The working principle of this device is as follows: Firstly, during the assembly and connection of the fan blades 7, the moving fan blades 7 drive the drive shaft 811, sleeve post 910, square rod 99, hexagonal seat 98, and screw barrel 97 through the through hole 84. The drive shaft 811 drives the positioning ring 89 and positioning seat 810 to move. Simultaneously, the positioning ring 89 drives the mounting seat 86 and positioning block 87 to move into the inner wall of the receiving groove 82. After the mounting seat 86 enters the inner wall of the receiving groove 82, the positioning block 87 enters the inner wall of the positioning groove 83, and the positioning seat 810 enters the inner wall of the positioning hole 85, causing the positioning ring 89 to abut and fix against the front wall of the connecting frame 81. Then, the screw barrel 97 slides outwards onto the outer wall of the sleeve post 910. The square rod 99 moves and enters the inner wall of the square hole 96 to abut and fix. The rear end of the sleeve post 910 fits against the front wall of the stud 95. The hexagonal seat 98 drives the screw barrel 97 to rotate and enter the outer wall of the stud 95 for screw fixing. The rear end of the screw barrel 97 abuts and fixes against the connector 94, thereby completing the installation and fixing of the fan blade 7. When the entire device needs to be installed, the fastening bolts pass through the mounting ears 4 on the mounting plate 1 to install the entire device. When the fan blade 7 needs to be driven, the DC motor 93 drives the connector 94, stud 95, square rod 99, sleeve post 910, drive shaft 811, steering bearing 88 and fan blade 7 to rotate on the fixing bracket 92.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy saving brushless direct current fan, characterized by: It includes two mounting plates (1) arranged symmetrically front to back. Connecting rods (2) are fixedly installed at the four corners of the inner wall of the two mounting plates (1). A drive assembly (9) is installed on the rear wall of the mounting plate (1) located at the rear. Connecting plates (3) are fixedly installed on the left and right sides of the inner wall of the two mounting plates (1). Fan blades (7) are installed on the inner wall of the connecting plate (3) through connecting assembly (8). The connecting assembly (8) includes a connecting frame (81), which is fixedly installed on the inner wall of the connecting plate (3). The front wall of the connecting frame (81) has a receiving groove (82), and the rear wall of the receiving groove (82) has a through hole (84). A drive shaft (811) is fixedly installed at the center of the rear wall of the fan blade (7). The rear end of the drive shaft (811) is fixedly connected to the drive assembly (9). The inner wall of the receiving groove (82) is evenly provided with a plurality of positioning grooves (83), and the front wall of the connecting frame (81) is evenly provided with a plurality of positioning grooves (84). A positioning hole (85) is provided. An installation seat (86) is installed on the inner wall of the receiving groove (82). A positioning block (87) is fixedly installed on the outer wall of the installation seat (86) at the position corresponding to the positioning groove (83). A steering bearing (88) is fixedly installed on the inner wall of the installation seat (86). The inner wall of the steering bearing (88) is fixedly connected to the outer wall of the drive shaft (811). A positioning ring (89) is fixedly installed on the front wall of the installation seat (86). A positioning seat (810) is fixedly installed on the rear wall of the positioning ring (89) at the position corresponding to the positioning hole (85).

2. The energy-saving brushless direct current fan of claim 1, wherein: The outer walls of several positioning blocks (87) are fitted with the inner walls of the corresponding positioning grooves (83), the outer walls of several positioning seats (810) are fitted with the interior of the corresponding positioning holes (85), the positioning grooves (83) are offset from the corresponding positioning holes (85), and the outer wall of the drive shaft (811) is fitted with the inner wall of the through hole (84).

3. The energy-saving brushless direct current fan of claim 1, wherein: The drive assembly (9) includes a DC motor (93). The outer wall of the mounting plate (1) located at the rear has an installation port (91). A fixing bracket (92) is fixedly installed on the inner wall of the installation port (91). The rear wall of the fixing bracket (92) is fixedly connected to the DC motor (93).

4. The energy-saving DC brushless fan according to claim 3, characterized in that: The power shaft of the DC motor (93) is fixedly mounted with a connector (94) through a bearing through a fixing bracket (92). A stud (95) is fixedly mounted on the front wall of the connector (94), and a square hole (96) is opened on the front wall of the stud (95).

5. The energy-saving brushless direct current fan of claim 1, wherein: A sleeve post (910) is fixedly installed at the rear end of the drive shaft (811), and a square rod (99) is fixedly installed at the rear end of the sleeve post (910). The outer wall of the square rod (99) fits against the inner wall of the square hole (96).

6. The energy-saving brushless direct-current fan of claim 5, wherein: The outer wall of the sleeve post (910) is slidably fitted with a screw cylinder (97), the inner wall of the screw cylinder (97) is screwed to the outer wall of the screw post (95), and a hexagonal seat (98) is fixedly installed on the outer wall of the screw cylinder (97).

7. The energy-saving brushless direct current fan of claim 1, wherein: The two mounting plates (1) are fixedly installed with mounting ears (4) at the four corners of their outer walls. The mounting plate (1) located at the front has a circular groove (5), and a guardrail (6) is screwed into the inner wall of the circular groove (5).

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