Efficient heat dissipation fan

Abstract

The utility model discloses an efficient heat dissipation fan, which relates to the technical field of fans and comprises a case component and a mesh enclosure component, the mesh enclosure component is mounted at an air inlet of the case component, an impeller is arranged in the case component, a movable pile is mounted on one side of the case component, and the movable pile is mounted on the other side of the case component. An auxiliary fixing pile is installed at the bottom of the side, away from the movable pile, of the case assembly, and meanwhile the back side of the case assembly is connected with a driving assembly. According to the efficient heat dissipation fan, the mesh enclosure assembly is arranged at the air inlet of the case assembly, foreign matter can be prevented from entering the impeller rotating at a high speed, meanwhile, the impeller can be assisted in cooling airflow flowing through a protective mesh plate to a certain degree, and therefore the heat dissipation efficiency of the whole device is guaranteed; and in addition, a movable pile and an auxiliary fixed pile are arranged on the left side and the right side of the machine box assembly correspondingly, stable and effective structural support can be provided for the machine box assembly to the maximum degree, and the structural stability of the whole device during operation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a fan with high-efficiency heat dissipation. Background Art

[0002] The cooling fan is a common centrifugal fan. Its working principle is to rely on the high-speed rotating impeller to generate centrifugal force, so as to suck air or gas from the axial direction and discharge it radially to form an airflow.

[0003] The impeller of a centrifugal fan is usually driven by an electric motor. The gas is accelerated and thrown outward by the impeller, and then decelerated and changed in the diffuser or casing, thereby converting kinetic energy into pressure energy to achieve gas transportation. Centrifugal fans have a variety of applications, including industrial production, building ventilation, indoor air purification, environmental management, etc. It can be used in ventilation, air conditioning, transportation, exhaust gas discharge and other occasions, especially in applications requiring higher pressure and flow.

[0004] In order to take air flow into consideration, the structure of conventional cooling fans sometimes adopts an open-type axial structure. However, this structure can easily cause foreign matter to be drawn into the internal impeller when it rotates at high speed, thereby damaging the internal structure and causing it to fail to operate normally.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a fan with high efficiency heat dissipation is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a fan with high efficiency in heat dissipation, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fan with high-efficiency heat dissipation, including a chassis assembly and a mesh cover assembly, the mesh cover assembly is installed at the air inlet of the chassis assembly, and an impeller is arranged inside the chassis assembly, and a movable pile is installed on one side of the chassis assembly, and an auxiliary fixing pile is installed on the bottom of the side of the chassis assembly away from the movable pile, and the back side of the chassis assembly is connected to a driving assembly, the mesh cover assembly includes a docking ring frame, a protective mesh plate, a docking pile and a fastening bolt, the center of the docking ring frame is installed with a protective mesh plate, and the outer diameter annular array of the docking ring frame is provided with a docking pile, and the internal horizontal thread of the docking pile is provided with a fastening bolt.

[0008] Furthermore, the chassis assembly includes a main housing, connecting piles and an air guide tube. The air inlet surface of the main housing is provided with connecting piles in a circular array, and one side of the main housing is vertically connected with an air guide tube.

[0009] Furthermore, the chassis assembly also includes a docking flange, docking bolts and a docking frame. The top of the air duct is provided with a docking flange, and the edge of the docking flange is arranged with docking bolts. The side of the main housing away from the air duct is installed with a docking frame.

[0010] Furthermore, the structural positions of the connecting piles and the docking piles correspond to each other, and the fastening bolts are threadedly connected to the connecting piles, and the protective mesh plate is arranged in a hexagonal honeycomb plate structure.

[0011] Furthermore, the movable pile includes a column, an assembly bolt and a fixing frame, the upper end of the column is threadedly mounted with the assembly bolt, and the bottom of the column is welded with the fixing frame.

[0012] Furthermore, the upper end of the column is connected to the docking frame by an inserting structure, and the assembly bolts are simultaneously threadedly connected to the column and the docking frame.

[0013] Furthermore, the driving assembly includes a motor frame, a stabilizing frame, a brushless DC motor and a coupling. The stabilizing frame is installed at the bottom of the motor frame, and the brushless DC motor is horizontally installed on the top of the motor frame, and the power output end of the brushless DC motor is connected to the coupling.

[0014] Furthermore, the stabilizing frame is arranged in an "M"-shaped structure as a whole, and is symmetrically installed on the front and rear sides of the bottom of the motor frame, and the impeller is connected to the power output end of the brushless DC motor through a coupling.

[0015] The utility model provides a fan with high efficiency heat dissipation, which has the following beneficial effects:

[0016] 1. The utility model installs a mesh cover assembly with a detachable structure at the circular air inlet of the main casing, and uses a protective mesh plate to effectively block external foreign matter from entering the interior of the chassis assembly, so as to reduce the impact on the impeller, and also prevents foreign matter from entering the interior of the ventilation duct from the air guide tube under the action of the impeller and affecting the subsequent heat dissipation effect. In addition, by using a protective mesh plate with a hexagonal honeycomb plate structure, due to the segmentation of its structure, when the external airflow passes through the protective mesh plate, it is equivalent to being segmented and passing through a number of narrow channels. At this time, the airflow density and speed are changed, thereby affecting its temperature. When the air breaks through the narrow channel, the molecules must face the cramped space, thereby forming a process similar to molecular collision. Therefore, when the gas molecules pass through the narrow channel, they will collide with each other, so that their kinetic energy increases and their thermal energy decreases. In several narrow channels inside the protective mesh, the collision and friction between molecules will slowly convert the thermal energy of the gas molecules into kinetic energy, causing the temperature to drop, which will reduce the temperature of the air flow entering the main casing to a certain extent. The air is then transported by the air duct and blown through the external pipe structure to the equipment or environment that needs heat dissipation or cooling, thereby ensuring the high efficiency and effectiveness of the heat dissipation of the entire device to the greatest extent.

[0017] 2. The utility model installs movable piles and auxiliary fixing piles on the left and right sides of the chassis assembly respectively, wherein the lower end structure of the auxiliary fixing piles and the structure of the fixing frame enable the entire device to be fixedly connected to the installation structure surface by bolts and other structures, and at the same time, the columns and the auxiliary fixing piles can play an effective structural support to ensure that the entire chassis assembly maintains the stability of the structure after installation, and prevents the vibration generated when the driving assembly drives the impeller from affecting the stability of the entire device. In addition, by using a brushless DC motor, since the brushless DC motor adopts permanent magnets and electronic speed regulation technology, it has the characteristics of small size, light weight, high efficiency, low noise, long life, etc. It is widely used in high-speed, miniaturized, low-noise centrifugal fans, and further ensures the efficient heat dissipation of the entire device after operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a fan with high efficiency in heat dissipation according to the utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of a chassis assembly of a fan with high efficiency heat dissipation according to the utility model;

[0020] Figure 3 This is a schematic diagram of the back three-dimensional structure of a main body of a high-efficiency heat dissipation fan of the utility model;

[0021] Figure 4 The utility model is a three-dimensional structural schematic diagram of a driving component of a fan with high efficiency in heat dissipation.

[0022] In the figure: 1. chassis assembly; 101. main casing; 102. connecting pile; 103. air guide tube; 104. docking flange; 105. docking bolt; 106. docking frame; 2. mesh cover assembly; 201. docking ring frame; 202. protective mesh plate; 203. docking pile; 204. fastening bolt; 3. impeller; 4. movable pile; 401. column; 402. assembly bolt; 403. fixing frame; 5. auxiliary fixing pile; 6. drive assembly; 601. motor frame; 602. stabilizing frame; 603. brushless DC motor; 604. coupling. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] like Figures 1 to 4As shown, a fan with high efficiency in heat dissipation comprises a chassis component 1 and a mesh cover component 2, wherein the mesh cover component 2 is installed at the air inlet of the chassis component 1, and an impeller 3 is arranged inside the chassis component 1, and a movable pile 4 is installed on one side of the chassis component 1, and an auxiliary fixing pile 5 is installed on the bottom of the side of the chassis component 1 away from the movable pile 4, and a driving component 6 is connected to the back side of the chassis component 1, and the mesh cover component 2 comprises a docking ring frame 201, a protective mesh plate 202, a docking pile 203 and a fastening bolt 204, and the docking A protective mesh plate 202 is installed in the center of the ring frame 201, and a docking pile 203 is provided in the outer diameter annular array of the docking ring frame 201, and a fastening bolt 204 is installed in the internal horizontal thread of the docking pile 203, the structural positions of the connecting pile 102 and the docking pile 203 correspond to each other, and the fastening bolt 204 is threadedly connected to the connecting pile 102, and the protective mesh plate 202 is arranged in a hexagonal honeycomb plate structure. The chassis assembly 1 includes a main housing 101, a connecting pile 102 and an air guide duct 103, and the main housing 1 01 has connecting piles 102 in a circular array on the air inlet surface, and an air duct 103 is vertically connected to one side of the main housing 101. The chassis assembly 1 also includes a docking flange 104, docking bolts 105 and a docking frame 106. A docking flange 104 is provided on the top of the air duct 103, and docking bolts 105 are arranged on the edge of the docking flange 104. A docking frame 106 is installed on the side of the main housing 101 away from the air duct 103. By installing a detachable mesh cover assembly 2 at the circular air inlet of the main housing 101, the protective mesh plate 202 can effectively block external foreign matter from entering the interior of the chassis assembly 1 to reduce the impact on the impeller 3, and also prevent foreign matter from entering the ventilation duct from the air duct 103 under the action of the impeller 3 and affecting the subsequent heat dissipation effect. In addition, by using the protective mesh plate 202 with a hexagonal honeycomb plate structure, the temperature of the air flow entering the main housing 101 is reduced to a certain extent, thereby ensuring the efficiency and effectiveness of the heat dissipation of the entire device to the greatest extent.

[0025] like Figures 1 to 4As shown, the movable pile 4 includes a column 401, an assembly bolt 402 and a fixing frame 403, the upper end of the column 401 is threadedly installed with the assembly bolt 402, and the bottom of the column 401 is welded with the fixing frame 403, the upper end of the column 401 is connected with the docking frame 106 by an insertion structure, and the assembly bolt 402 is threadedly connected with the column 401 and the docking frame 106 at the same time, the driving component 6 includes a motor frame 601, a stabilizing frame 602, a brushless DC motor 603 and a coupling 604, the bottom of the motor frame 601 is installed with the stabilizing frame 602, and the top of the motor frame 601 is horizontally installed with the brushless DC motor 603, and the power output of the brushless DC motor 603 The output end is connected with a coupling 604, the stabilizing frame 602 is arranged in an "M"-shaped structure as a whole, and the stabilizing frame 602 is symmetrically installed on the front and rear sides of the bottom of the motor frame 601, and the impeller 3 is connected to the power output end of the brushless DC motor 603 through the coupling 604. The movable piles 4 and the auxiliary fixing piles 5 are respectively installed on the left and right sides of the chassis assembly 1, wherein the lower end structure of the auxiliary fixing piles 5 and the structure of the fixing frame 403 enable the entire device to be fixedly connected to the installation structure surface by bolts and other structures, and at the same time, the columns 401 and the auxiliary fixing piles 5 can play an effective structural support to ensure that the entire chassis assembly 1 maintains the stability of the structure after installation.

[0026] In summary, if Figures 1 to 4 As shown, when the fan with high efficiency heat dissipation is used, first, according to the use needs, the whole device is transported to the designated installation position, and is placed on the installation structure surface, and the bottom of the auxiliary fixing pile 5 is in contact with the installation structure surface, and the upper end of the column 401 is inserted into the docking frame 106 on the side of the main housing 101, and the whole movable pile 4 is connected and fixed to the chassis assembly 1 using the assembly bolt 402, and then the fixing frame 403 at the bottom of the column 401 and the bottom structure of the auxiliary fixing pile 5 can be used, combined with the screws and other structures therein, to screw and fix, so that the whole device is fixedly connected to the installation structure surface;

[0027] Then, the external connection pipe or ventilation pipe can be connected to the structure through the docking flange 104 on the top of the air guide tube 103 on one side of the main housing 101 according to the use needs, and the two can be connected and fixed using docking bolts 105 to ensure that the air can be transported smoothly;

[0028] At this time, the stabilizing frame 602 at the bottom of the main housing 101 provides a good grounding support for the entire driving assembly 6, and then the brushless DC motor 603 is started. Under the connection of the coupling 604, the impeller 3 connected to the power output end of the brushless DC motor 603 begins to be gradually driven and starts to rotate at a high speed. Under its rotation, the external air will be drawn into the interior of the main housing 101; and guided by the air guide tube 103, it is transmitted to the pipe connected thereto;

[0029] In this process, as the flowing air passes through the protective mesh plate 202 with a hexagonal honeycomb plate structure, the air is divided and enters the narrow space one by one due to the division of its structure. As the air flow is restricted, the heat transfer restriction increases, and the heat cannot be released quickly. At this time, the heat transfer speed between gas molecules will slow down. As the temperature gradient gradually decreases or disappears, the heat quickly diffuses to the surroundings and dissipates to the objects around the channel, causing the temperature of the entire gas to drop, thereby forming a relatively low-temperature "cold wind" to ensure the heat dissipation and cooling effect.

[0030] At the same time, under the blocking of the protective mesh plate 202, foreign matter can be effectively prevented from entering the interior of the main housing 101 when the entire device is in operation, thereby reducing unnecessary problems. When the entire mesh cover assembly 2 needs to be disassembled for maintenance and cleaning, it is only necessary to unscrew the connecting piles 102 threadedly connected to the periphery of the main housing 101 and the fastening bolts 204 in the docking piles 203 on the outer diameter surface of the docking ring frame 201 in turn, and the entire mesh cover assembly 2 can be disassembled.

[0031] The examples of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. A fan with high efficiency in heat dissipation, comprising a chassis assembly (1) and a mesh assembly (2), characterized in that: A mesh cover assembly (2) is installed at the air inlet of the chassis assembly (1), and an impeller (3) is arranged inside the chassis assembly (1), and a movable pile (4) is installed on one side of the chassis assembly (1), and an auxiliary fixing pile (5) is installed at the bottom of the side of the chassis assembly (1) away from the movable pile (4), and the back side of the chassis assembly (1) is connected to a driving assembly (6), and the mesh cover assembly (2) comprises a docking ring frame (201), a protective mesh plate (202), a docking pile (203) and a fastening bolt (204), the center of the docking ring frame (201) is installed with a protective mesh plate (202), and the outer diameter annular array of the docking ring frame (201) has docking piles (203), and the internal horizontal threads of the docking piles (203) are installed with fastening bolts (204).

2. The fan with high efficiency heat dissipation according to claim 1, characterized in that: The chassis assembly (1) comprises a main housing (101), a connecting post (102) and an air guide tube (103); the connecting post (102) is provided in a circular array on the air inlet surface of the main housing (101), and the air guide tube (103) is vertically connected to one side of the main housing (101).

3. The fan with high efficiency heat dissipation according to claim 2, characterized in that: The chassis assembly (1) further comprises a docking flange (104), docking bolts (105) and a docking frame (106); the top of the air guide tube (103) is provided with a docking flange (104), and the edge of the docking flange (104) is arranged with docking bolts (105); and the docking frame (106) is installed on a side of the main housing (101) away from the air guide tube (103).

4. The fan with high efficiency heat dissipation according to claim 2, characterized in that: The structural positions of the connecting pile (102) and the docking pile (203) correspond to each other, and the fastening bolt (204) is threadedly connected to the connecting pile (102). The protective mesh plate (202) is arranged in a hexagonal honeycomb plate structure.

5. The fan with high efficiency heat dissipation according to claim 3, characterized in that: The movable pile (4) comprises a column (401), an assembly bolt (402) and a fixing frame (403); the upper end of the column (401) is threadedly mounted with the assembly bolt (402), and the bottom of the column (401) is welded with the fixing frame (403).

6. The fan with high efficiency heat dissipation according to claim 5, characterized in that: The upper end of the column (401) is connected to the docking frame (106) by adopting an inserting structure, and the assembly bolt (402) is simultaneously threadedly connected to the column (401) and the docking frame (106).

7. The fan with high efficiency heat dissipation according to claim 1, characterized in that: The driving assembly (6) comprises a motor frame (601), a stabilizing frame (602), a brushless DC motor (603) and a coupling (604); the stabilizing frame (602) is installed at the bottom of the motor frame (601), the brushless DC motor (603) is installed horizontally at the top of the motor frame (601), and the power output end of the brushless DC motor (603) is connected to the coupling (604).

8. The fan with high efficiency heat dissipation according to claim 7, characterized in that: The stabilizing frame (602) is arranged in an "M"-shaped structure as a whole, and is symmetrically mounted on the front and rear sides of the bottom of the motor frame (601), and the impeller (3) is connected to the power output end of the brushless DC motor (603) through a coupling (604).

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