Overlapped fan module

Abstract

The utility model relates to the technical field of electronic equipment, in particular to an overlapped fan module which is technically characterized by comprising a shell and a fan, the shell is arranged in a cuboid shape, a containing groove is formed in the middle of the shell, a fixing device is arranged in the containing groove, the fixing device is used for fixing the fan, and the fan is arranged in the containing groove. The fan is characterized in that the fans are divided into two sets, the number of the two sets of fans is two, and the two sets of fans are arranged in an up-down staggered and overlapped mode. The four fans are arranged on the basis of the three-fan module, compared with an original three-fan module, the air volume is larger, the space utilization rate is higher, the area which cannot be covered by the three fans originally is covered, and therefore the heat dissipation performance is improved. Two forward rotation and two reverse rotation are adopted by the four fans, so that air turbulence in the module is reduced, and the air quantity passing through the radiator is increased; due to the fact that the fan blades of the four fans are overlapped, the appearance is more creative and more novel.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to an overlapping fan module. Background Art

[0002] The cooling fan is an indispensable heat dissipation component in electronic equipment. It promotes air flow through rotating blades, effectively removes the heat generated by the equipment, and ensures the stable operation of the equipment. There are various specifications and types of cooling fans on the market, such as axial fans and centrifugal fans, to meet the heat dissipation needs of different equipment. When choosing a cooling fan, you need to consider factors such as its speed, air volume, air pressure, and noise to achieve the best heat dissipation effect. At the same time, regular cleaning and maintenance of the cooling fan is also very important to ensure its long-term stable operation. In short, the cooling fan plays a key role in electronic equipment and has an important impact on the performance and life of the equipment. The correct selection and use of the cooling fan is an important part of ensuring the normal operation of the equipment.

[0003] For example, the Taiwan patent with application number TW111207140 discloses an assembly-enhanced and improved structure of a fan module, wherein the plurality of fan modules include three fans. During the heat dissipation process, there are gaps between the three fans, and the heat in the gaps needs to be dissipated by the three fans. The heat dissipation efficiency is not high. Therefore, how to improve the heat dissipation performance of the fan module has become a technical problem in the prior art. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is how to improve the heat dissipation performance of the fan module in the prior art.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] An overlapping fan module includes a shell and a fan, wherein the shell is in a rectangular shape, a receiving groove is provided in the middle portion of the shell, a fixing device is provided in the receiving groove, and the fixing device is used to fix the fan. The invention is characterized in that: the fans are divided into two groups, each of the two groups has two fans, and the two groups of fans are staggered and overlapped up and down.

[0007] Preferably, opposite side surfaces of adjacent fans are respectively provided with making way portions, and the making way portions are used to make way for blades of adjacent fans.

[0008] Preferably, the outer diameters of the two groups of fans are not equal.

[0009] Preferably, the two groups of fans rotate in opposite directions.

[0010] Preferably, four fixing devices are provided, and the four fixing devices correspond to the four fans respectively.

[0011] Preferably, each of the fixing devices comprises a fixing ring and a plurality of extension arms, and the fixing rings are arranged in an array along the length direction of the housing.

[0012] Preferably, the fixing ring is located at the center of the fan, and three extension arms are provided on each fixing device, and the three extension arms are connected to the fixing ring and the side wall of the outer shell.

[0013] Compared with the prior art, this application has the following beneficial effects:

[0014] 1. The overlapping fan module provided in the present application is configured with four fans on the basis of a three-fan module. Compared with the original three-fan module, the air volume is larger, the space utilization rate is higher, and the area that the original three fans cannot cover is covered, thereby improving the heat dissipation performance.

[0015] 2. The present application provides an overlapping fan module, which uses four fans with two forward rotations and two reverse rotations to reduce air turbulence inside the module, thereby increasing the air volume passing through the radiator;

[0016] 3. The overlapping fan module provided in the present application has a more creative and novel appearance through the overlapping blade design adopted by four fans.

[0017] 4. The present application provides an overlapping fan module, which avoids overlapping and collision of blades by adopting a design of fan blades that are small at the top and large at the bottom or large at the top and small at the bottom;

[0018] 5. The overlapping fan module provided in the present application increases the distance between blades by setting a yielding portion, thereby effectively reducing fan noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an overlapping fan module in one embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of an overlapping fan module from another angle in one embodiment of the utility model.

[0021] In the figure, 1, housing; 11, receiving groove; 12, fixing device; 121, fixing ring; 122, extension arm; 2, fan; 21, fan blade; 22, yielding part. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1An overlapping fan module includes a housing 1 and two sets of fans 2. The housing 1 is roughly rectangular, and the two sets of fans 2 are arranged in the housing 1 along the length direction of the housing 1.

[0024] See also Figure 2 In one embodiment, the housing 1 is in a rectangular parallelepiped configuration, and a receiving groove 11 is provided in the middle portion of the housing 1. The receiving groove 11 is used to receive the fan 2. In one embodiment, a fixing device 12 is provided in the receiving groove 11. The fixing device 12 is used to fix the fan 2. Please refer to Figure 1 and Figure 2 The fixing device 12 is arranged one by one with the four fans 2, and each fixing device 12 includes a fixing ring 121 and a plurality of extension arms 122, wherein the fixing ring 121 is arranged corresponding to the center position of the fan 2, and the fixing ring 121 is arranged in an array along the length direction of the housing 1, and the extension arms 122 extend outward and are connected to the inner wall of the housing 1. In one embodiment, three extension arms 122 are arranged on each fixing ring 121.

[0025] See also Figure 1 The two groups of fans 2 respectively include two fans 2, and both groups of fans 2 are fixed on the fixing device 12, one group of fans 2 is located on the upper side of the thickness direction of the housing 1, and the other group of fans 2 is located on the lower side of the thickness direction of the housing 1, and the two groups of fans 2 are staggered and overlapped. In one embodiment, the side surfaces of the adjacent fans 2 on opposite sides are respectively provided with a yielding portion 22, and the yielding portion 22 is used to yield the blades 21 of the fans 2 on both sides, and increase the distance between the blades 21 of the adjacent fans 2, thereby effectively reducing the noise of the fans 2.

[0026] See also Figure 1 The sizes of the two groups of fans 2 are different. Specifically, in one embodiment, the size of the upper fan 2 is larger than that of the lower fan 2. By limiting the size, overlapping and collision between the blades 21 of the fan 2 can be effectively avoided during the rotation of the fan 2. In another embodiment, the size of the upper fan 2 is smaller than that of the lower fan 2.

[0027] See also Figure 1 and Figure 2 The two groups of fans 2 rotate in opposite directions. Specifically, the upper fan 2 rotates forward, and the lower fan 2 rotates reversely. By limiting the rotation direction, the air turbulence in the fan 2 module is reduced, thereby increasing the air volume of the radiator. In another embodiment, the upper fan 2 rotates reversely, and the lower fan 2 rotates reversely.

[0028] To sum up, the overlapping fan module provided in the present application is configured with four fans 2 on the basis of a three-fan module. Compared with the original three-fan module, it has a larger air volume and higher space utilization, and covers areas that the original three fans cannot cover, thereby improving the heat dissipation performance.

[0029] In addition, by using two forward rotations and two reverse rotations of the four fans 2, the air turbulence inside the module is reduced, thereby increasing the air volume passing through the radiator;

[0030] Furthermore, the overlapping design of the blades 21 adopted by the four fans 2 is more creative and novel in appearance.

[0031] In the present application, the fan blades 21 of the fan 2 are designed to be small at the top and large at the bottom, or large at the top and small at the bottom, to avoid overlapping and collision of the blades;

[0032] Furthermore, by providing the yielding portion 22 , the distance between the blades is increased, thereby effectively reducing the noise of the fan 2 .

Claims

1. An overlapping fan module, comprising a housing and a fan, wherein the housing is in a rectangular parallelepiped configuration, a receiving groove is provided in the middle portion of the housing, a fixing device is provided in the receiving groove, and the fixing device is used to fix the fan, wherein: The fans are divided into two groups, each of which has two fans, and the fans in the two groups are staggered and overlapped up and down.

2. The overlapping fan module according to claim 1, characterized in that: The side surfaces of the adjacent fans on one side opposite to each other are respectively provided with a giving way portion, and the giving way portion is used to give way to the blades of the adjacent fans.

3. The overlapping fan module according to claim 1, characterized in that: The outer diameters of the two groups of fans are not equal.

4. The overlapping fan module according to claim 1, characterized in that: The two groups of fans rotate in opposite directions.

5. The overlapping fan module according to claim 1, characterized in that: Four fixing devices are provided, and the four fixing devices correspond to the four fans respectively.

6. The overlapping fan module according to claim 5, characterized in that: Each of the fixing devices comprises a fixing ring and a plurality of extension arms, and the fixing rings are arranged in an array along the length direction of the shell.

7. The overlapping fan module according to claim 6, characterized in that: The fixing ring is located at the center of the fan, and three extension arms are provided on each fixing device. The three extension arms are connected to the fixing ring and the side wall of the shell.

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