WO2021254424A1

WO2021254424A1 - Fan apparatus and communication device

Info

Publication number: WO2021254424A1
Application number: PCT/CN2021/100540
Authority: WO
Inventors: 杨世林; 高磊
Original assignee: 中兴通讯股份有限公司
Priority date: 2020-06-17
Filing date: 2021-06-17
Publication date: 2021-12-23
Also published as: CN113811141A

Abstract

Disclosed in the present disclosure are a fan apparatus and a communication device, belonging to the field of communication and electronic devices. The fan apparatus of the present disclosure is configured to be arranged in a space formed by enclosure by a box body and a cover plate of a fan plug-in box. The fan apparatus comprises a fan assembly, and further comprises: a first connecting structure for connecting an upper part of one side of the fan assembly to an upper part of a side plate of the box body; a second connecting structure for connecting an upper part of the other side of the fan assembly to the cover plate; and a third connecting structure for connecting two sides of a lower part of the fan assembly to two sides of a bottom plate of the box body. In the fan apparatus of the present disclosure, a fan and a vibration damping nail are connected together without needing various supports, such that the problem of it not being possible to carry out vibration damping on a fan due to the internal space of a box body of a fan plug-in box or a fan module being small or limited is solved.

Description

Fan installation and communication equipment

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 202010551902.X, and the name of the invention "fan device and communication equipment" on June 17, 2020, the entire content of which is incorporated into this application by reference.

Technical field

The present disclosure relates to the field of communication and electronic equipment, and in particular to a fan device with a fan plug-in box that can be quickly installed and a communication device with the device.

Background technique

Most of the equipment involved in the communications and electronic equipment fields need to use a fan box (or fan module) to ventilate the equipment system. Among them, the fan box (or fan module) has a variety of structures. High quality requirements, and modern manufacturing technology also put forward higher requirements for production efficiency and the maintainability of communication and electronic equipment, which urgently requires that the fan vibration damping in communication and electronic equipment can be quickly installed and maintained. Good performance, high-efficiency production, and compact fan assembly structure is required.

In the structure in the prior art that adopts a fan box for heat dissipation, when connecting the fan and the fan box, it is necessary to install brackets on both sides of the fan first, and then connect the bracket and the fan together through shock-absorbing nails, and then the resulting The fan assembly is arranged in the box body of the fan plug-in box, and finally the bracket is fixed to the fan plug-in box by screws. With this connection method, the assembly is cumbersome, installation and maintenance are inconvenient, and the fan assembly takes up a large space, which is not suitable for equipment that requires space.

Summary of the invention

The main purpose of the embodiments of the present disclosure is to propose a fan device, which overcomes the disadvantage that the fan in the prior art needs to connect the fan and the shock-absorbing nails through various brackets. In addition, the present disclosure also provides a communication device with the fan device.

In order to achieve the above objective, the embodiments of the present disclosure provide a fan device, which is arranged to be arranged in a space enclosed by a box body and a cover plate of a fan plug-in box, and includes a fan assembly, and further includes: a fan assembly connected to the fan assembly The first connecting structure of the upper part of one side and the upper part of the side plate of the box body; the second connecting structure of connecting the upper part of the other side of the fan assembly and the cover plate; connecting the two sides of the lower part of the fan assembly with the The third connecting structure on both sides of the bottom plate of the box body.

Wherein, the first connection structure includes: a mounting hole provided on an upper part of one side of the fan assembly; an elastic column having a mating part matched with the mounting hole and a clamping part for clamping the side plate.

Wherein, the side plate is a side plate provided with a card slot or a bayonet that is configured to clamp the card connecting portion of the elastic column.

Wherein, the elastic column further includes: two ends of the elastic column are respectively connected to the mating portion and the clamping portion stopper portion, the diameter of the stopper portion is larger than the diameter of the matching portion and the clamping portion .

Further, the elastic column further includes a guide part connected to an end of the mating part away from the stop part, and the diameter of the connecting part of the guide part and the mating part is larger than the diameter of the mating part.

Wherein, the guiding part has an equal diameter part and a frustum part connected to one end of the equal diameter part, and the large end of the frustum part is located at the connection place where the guiding part is connected to the mating part.

Wherein, the guiding part, the matching part, the stop part, and the clamping part of the elastic column are coaxial.

Wherein, the elastic column is a rubber column made of rubber.

Wherein, the number of the mounting hole is at least one, and the number of the elastic column, the slot or the bayonet is the same as the number of the mounting hole.

Optionally, the number of the mounting holes is two.

Wherein, the second connection structure includes: a mounting hole arranged on the upper part of the other side of the fan assembly; an elastic column having a matching part that matches with the mounting hole and a clamping part for clamping the cover plate.

Wherein, the cover plate is a cover plate provided with a card slot or a bayonet that is set to be used for clamping the clamping part of the elastic column.

Wherein, the third connection structure includes: mounting holes provided on both sides of the lower part of the fan assembly; an elastic column having a mating part that matches with the mounting hole and a clamping part of the bottom plate.

Wherein, the bottom plate is a bottom plate provided with a card slot or a bayonet that is configured to clamp the card connecting portion of the elastic column.

In addition, an embodiment of the present disclosure also provides a communication device, which includes the fan assembly described above.

Compared with the prior art, the invention of the fan assembly and communication equipment that can be installed quickly has the following advantages:

1) The assembly process is simple and quick. The assembly of the fan assembly is simple, and the assembly of the fan assembly into the fan box is also very fast. It can be installed into the self-formed slot or bayonet on the box body, and the alignment is accurate and screw-free installation;

2) It can be maintained well. Screw-free assembly and disassembly, the fan assembly can be quickly taken out for replacement or maintenance;

3) Solve the need for shock absorption even when the space in the fan box or the fan module box is small or limited. The fan assembly of the present disclosure is only composed of a fan and a shock-absorbing rubber column, and the space is small. At the same time, the installation slot or bayonet is formed on the fan box body by self-forming, which reduces the space and cost of the assembly bracket, so that the fan's overall size is larger than The size of the inner wall of the fan box can also be used to install the fan and reduce vibration.

Description of the drawings

Fig. 1 is a schematic diagram of an assembly structure of a fan device provided by an embodiment of the present disclosure;

2 is a schematic diagram of the structure of the lower box body of the fan plug-in box of the fan device of the embodiment of the present disclosure;

3 is a schematic diagram of the fan assembly of the fan device of the embodiment of the present disclosure being installed in the fan plug-in box;

4 is a schematic diagram of the structure of the fan assembly of the fan device of the embodiment of the present disclosure;

5 is a schematic structural diagram of the upper cover plate of the fan plug-in box of the fan device of the embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a slot or a bayonet formed on the fan plug-in box of the fan device in the embodiment of the present disclosure;

FIG. 7 is a schematic diagram of the structure of a shock-absorbing rubber column according to an embodiment of the present disclosure;

Fig. 8 is an exploded view of the fan assembly installed in the fan plug-in box according to the embodiment of the present disclosure;

Figure 9 is an assembly diagram of a prior art fan device;

Figure 10 is an assembly diagram of a fan box in the prior art (the cover is not shown);

Fig. 11 is an assembly diagram of a fan box for installing a fan device in the prior art.

Description of Reference Signs: 100, fan box; 200, box body; 201, bottom plate; 202, side plate; 210, card slot; 220, card slot; 230, card slot; 300, fan assembly; 310, fan; 320 , Elastic column; 321, equal diameter part; 322, frustum part; 323, mating part; 324, stop part; 325, clamping part; 326, opening groove; 327, raised part; 400, cover plate; 410 , Card slot or bayonet; 1. Front bracket; 2. Damping nail; 3. Fan; 4. Rear bracket; 5. Fan assembly; 6. Fan box; 7. Screw.

detailed description

It should be understood that the specific embodiments described herein are only used to explain the present disclosure, but not used to limit the present disclosure.

As shown in Figures 1, 3, and 8, the fan device provided by the embodiments of the present disclosure is a schematic diagram of different angles, which can be quickly installed in the space enclosed by the box body 200 and the cover 400 of the fan sub-box 100. It can be seen that the fan device of the embodiment of the present disclosure includes: a fan assembly 300 arranged in a box 200, and further includes: a direct connection between the upper part of the fan assembly and the upper part of the box side plate 202 (see FIG. 2) The first connection structure; the second connection structure that directly connects the upper part of the other side of the fan assembly and the cover plate; the third connection structure that directly connects the two sides of the lower part of the fan assembly and both sides of the box bottom plate 201.

The fan device of the embodiment of the present disclosure directly connects the fan assembly with the box body 200 and the cover 400 of the fan box 100 through the first, second, and third connection structures. This unique, simple, fast installation and free The screw structure firstly solves the problems of complicated installation and fixing process and poor maintainability of the fan device in the prior art, and can greatly reduce the cost of structural parts of the fan plug-in box; secondly, it solves the problem of the fan plug-in box in the prior art. There is not enough space to install the damping structure of the fan bracket to achieve the problem of fan damping.

Specifically, the fan box 100 of the embodiment of the present disclosure can adopt the structure of the prior art, and has a box body 200 and a cover plate 400. The box body 200 has at least a side plate 202, a bottom plate 201 perpendicularly connected to the bottom of the side plate, and a side plate. A space configured to house the fan assembly 300 is formed between 202 and the bottom plate 201. The cover plate 400 is buckled on the bottom of the box body 200, connected to the top of the side plate 202, and works with the box body to fix the fan assembly 300 in the box body.

The fan assembly 300 may include one fan 310, or two or more fans 310 (two fans are shown in FIG. 3 and FIG. 4).

Wherein, if the fan assembly 300 includes a fan 310, the first connection structure directly connects the upper part of one side of the fan and the upper part of the side plate 202 of the box body, and the second connection structure directly connects the upper part of the other side of the fan and the cover plate. The third connection structure directly connects the two sides of the lower part of the fan and the two sides of the box bottom plate 201. If the fan assembly 300 includes two or more fans, then the two or more fans are connected in series (the adjacent fans can be connected in series using the existing technology), and the first connection structure is directly connected The upper part of one side of the fan on one side of the fan assembly (the fan on the left in Figure 3) and the upper part of the box side plate 202, the second connection structure directly connects the fan on the other side of the fan assembly (on the right in Figure 3) The other side of the fan) (the other side refers to the side of the fan on the right side away from the fan on the left) and the upper part of the cover plate. The third connection structure directly connects the lower two sides of the fan on both sides of the fan assembly with the bottom plate of the box body 201 on both sides.

In the following, only the fan assembly includes two fans (that is, the two fans as shown in Figure 3). For the convenience of description, the fan on the left in Figure 3 is called the first fan, and the fan on the right in Figure 3 is referred to as the first fan. (Referred to as the second fan) as an example, the fan device of the embodiment of the present disclosure will be described in detail.

The first connection structure of the embodiment of the present disclosure includes: a mounting hole 330 (as shown in FIG. 4) provided on the upper part of one side of the first fan; 325 elastic column 320 (as shown in Figure 7). Correspondingly, the side plate 202 is provided with a card slot 210 (as shown in FIG. 2) configured to engage the snap portion 325 of the elastic post 320, that is, the side plate 202 is provided with an elastic post provided thereon. The side plate of the card slot 210 of the card connecting portion 325 of 320.

Wherein, the card slot 210 is an opening slot (as shown in Figure 2) opened on the inner wall of the side plate, and the upper opening of the slot is located at the top end of the side plate, so that the clamping portion 325 of the elastic column 320 can directly follow the inner wall of the side plate. It is arranged from top to bottom and clamped in the card slot 210. In order to facilitate the precise positioning when the elastic column is installed, the structural shape of the slot has a guiding bell mouth, that is, viewed along the height direction of the box body, the slot has a wide top and a narrow shape, all of which are arc-shaped and The transition is smoothly connected. In addition, the card slot 210 can also adopt a bayonet, that is, the card slot 210 does not penetrate through the thickness of the side plate, but the bayonet penetrates through the thickness of the side plate.

Wherein, the elastic column 320 adopts the structure shown in FIG. 7 and includes: a matching part 323 arranged to cooperate with a mounting hole provided on one side of the first fan, and a clamping part 325 clamped on the side plate 202. The matching part 323 penetrates through the mounting hole 330, and the clamping portion 325 is exposed outside the mounting hole 330.

In addition, the elastic column 320 further includes a stopper portion 324, both ends of the stopper portion 324 are respectively connected to the mating portion 323 and the clamping portion 325, and the diameter of the stopper portion 324 is larger than the diameter of the mating portion 323 and the clamping portion 325. In design, the stopper part 324 can be a tapered stopper (as shown in Figure 7). The large end of the tapered stopper is located at the connection point with the mating part 323, and the diameter of the major end is much larger than the diameter of the mating part 323; The end is located at the connection point with the clamping portion 325, and the diameter of the small end is larger than the diameter of the clamping portion 325. In addition, the stopper portion 324 may also be a cylindrical stopper or a stopper of other shapes. However, no matter what the shape of the stopper is, the size of the connecting portion of the stopper and the mating portion is larger than the outer diameter of the mating portion.

In order to facilitate the insertion of one end of the elastic column 320 through the mounting hole 330 so that the mating portion 323 is placed in the mounting hole and at the same time the elastic pillar can be positioned axially, the elastic pillar 320 also includes a distance between the mating portion 323 and the stop portion 324. The guiding part connected at one end, and the diameter of the connecting part of the guiding part and the mating part 323 is larger than the diameter of the mating part 323. When designing, the guiding part has an equal diameter part 321 and a frustum part 322 connected to the equal diameter part 321, and the large end of the frustum part 322 is connected to the mating part 323.

The mating part 323 is located between the frustum part 322 and the stop part 324, and the diameter of the mating part is smaller than the diameter of the frustum part and the stop part where the mating part connects with the frustum part and the stop part, so that the mating part is elastic The groove on the column, when the elastic column is assembled on the first fan, the frustum part 322 and the stop part 324 respectively form bosses for positioning the two ends of the mating part 323, so as to axially locate the elastic column, which is effective Prevent the elastic column from falling out of the first fan. Optionally, the depth of the mounting hole on the first fan is equivalent to the axial length of the mating part, and the diameter of the mounting hole is equal to or slightly smaller than the outer diameter of the mating part.

Further, the guiding portion on the elastic column may also be provided with a plurality of protrusions 327 that are arc-shaped protruding radially outward of the elastic column, and the plurality of protrusions are continuously arranged along the axial direction of the elastic column, as shown in the figure. As shown in FIG. 7, the protrusion 327 is provided at one end of the equal-diameter portion 321 that is connected to the frustum portion 322. In addition, since the diameter of the frustum portion 322 is greater than the diameter of the mating portion 323, for ease of assembly, at least one opening groove 326 extending in the axial direction of the elastic column is provided on the outer wall of the frustum portion 322, and the deepest part of the opening groove 236 is matched with The part 323 has the same diameter and communicates with the mating part 323.

When designing, the guiding part, the matching part, the stop part, and the clamping part of the elastic column are coaxial. The length of the elastic column part other than one end of the platform part is greater than the length of the elastic column part where the mating part connects to the other end of the stop part, so that the elastic column resembles a long tail, which is convenient for dragging when assembling the elastic column.

Among them, the elastic column in the embodiment of the present disclosure is made of elastic material, for example, it may be a rubber column made of rubber. The elastic column 320 is made of hard rubber, so that the finished rubber column has specific elasticity and hardness requirements. The rubber column can be elastically deformed by pulling into the installation hole of the first fan. The groove (ie the mating part) of the rubber column is clamped at the installation hole of the fan 310. The frustum part 322 and the stop part 324 are respectively clamped in the installation hole. The two ends of the hole not only play the role of assembly, clamping and support for the first fan, but also have the performance of elastic shock absorption.

In addition to the above-mentioned first connection structure directly connecting the upper part of one side of the first fan and the upper part of the box body side plate 202, the fan device of the embodiment of the present disclosure also includes directly connecting the other side of the second fan (that is, the side far away from the first fan). ) The second connection structure of the upper part and the cover plate and the third connection structure directly connecting the two lower sides of the two fans and the two sides of the box bottom plate 201, and the second connection structure, the third connection structure and the first connection structure The structure is basically the same.

Specifically, the second connection structure includes: a mounting hole provided on the upper part of the other side of the second fan; an elastic column having a mating part that matches with the mounting hole and a clamping part for clamping the cover plate. Correspondingly, the cover plate is a cover plate provided with a card slot or a bayonet for clamping the clamping part of the elastic column. Wherein, the mounting hole on the second fan has the same structure as the mounting hole on the first fan, and the structure of the elastic column used in the second connection structure is also the same as the structure of the elastic column of the first connection structure, which will not be repeated here. The slot on the cover plate is a groove provided on the holder on the lower surface of the vertical cover plate, and the opening of the groove faces downward so that the slot can be clamped to the clamping part of the elastic column when the cover plate is buckled. The holder can be formed by directly bending the material at the corresponding position of the cover plate or stamping it (as shown in Fig. 5 and Fig. 6), of course, it can also be vertically fixed on the lower surface of the cover plate by welding or other methods. The card slot is also arc-shaped, and the size is adapted to the clamping portion of the elastic column (that is, the structure of the card slot provided on the side plate is exactly the same). In addition, the card slot can also be replaced by a bayonet.

Wherein, the third connection structure includes: a plurality of mounting holes arranged on both sides of the lower part of the two fans; an elastic column having a mating part matched with the mounting hole and a clamping part of the bottom plate. Correspondingly, the bottom plate is a bottom plate provided with a card slot or a bayonet for clamping the clamping part of the elastic column. Among them, the card slot or bayonet is provided on the upper surface of the bottom plate, and the setting method is the same as that of the card slot or bayonet on the cover plate. The corresponding structure of the above-mentioned connection structure is the same, but the position is different, so it will not be repeated here.

Among them, the number of mounting holes of the first connecting structure and the second connecting structure of the embodiment of the present disclosure is at least one, and the number of mounting holes of the third connecting structure is at least one pair. Correspondingly, the elastic columns and clips of each connecting structure The number of slots or bayonet is matched with the number of mounting holes. Optionally, the number of mounting holes of the first connection structure and the second connection structure are two respectively, and the number of corresponding elastic columns, slots or bayonet openings are also two respectively, and the number of mounting holes of the third connection structure The number is four, and the number of corresponding elastic columns, slot or bayonet is also four respectively.

During processing, the slot or bayonet on each component can be directly processed from the material of the box body 200 and the cover plate 400, so as to avoid the additional assembly space required for assembling the bracket. The structural shape of the bayonet or bayonet has a guiding bell mouth, which facilitates the precise positioning of each rubber column when it is installed, so that the bayonet or bayonet can effectively limit and clamp the rubber column, so that the fan assembly 300 The assembly achieves fast and accurate positioning and clamping support.

It should be noted that during the design, the above can also be provided on other vertical boards forming the box body (such as the front panel connected to the side panel and the bottom panel, the rear panel or even the partition parallel to the side panel) according to actual needs. The structure of the slot or bayonet, and the corresponding elastic column, mounting hole, etc. are arranged at the corresponding position of the fan assembly for connection.

When assembling the fan device of this embodiment, firstly insert a plurality of specific rubber posts 320 into the mounting holes on the sides of the two fans 310 of the fan assembly 300 respectively, and then insert the fan assembly 300 with a plurality of rubber posts 320. Install directly into the card slot or bayonet of the box body 200 of the fan box 100, and finally cover the cover plate 400 of the fan box 100 through the card slot or bayonet on the side plate of the box body 200 and the card slot on the cover plate 400 Or the bayonet 410 is respectively connected to a plurality of rubber posts 320, so that the overall position of the fan assembly 300 is limited and clamped and fixed, so that the fan assembly 300 can be quickly aligned and accurately installed in the fan box 100 without screws, and can be installed Achieve an effective shock absorption effect. It can be seen that the installation process of the fan device provided in this embodiment is simple and quick.

It can be seen from the above that, in the fan device of the embodiment of the present disclosure, the elastic column of each connection structure adopts a rubber column, which is directly pulled into the installation hole of the corresponding fan through the elastic deformation of the rubber column without supporting the fan by the bracket, so that the fan The component occupies a small space, and then place the fan component with a rubber column into the fan box, and limit and clamp the fan component through the slot or bayonet around the fan box body, and the positioning is accurate And screw-free installation, which not only achieves the elastic support of the fan assembly, but also enables the fan to achieve an effective shock absorption effect during operation. The simple and quick installation and screw-free structure of the fan components effectively improve the production efficiency and fast replacement maintainability of the fan sub-box in the communication and electronic equipment. At the same time, the fan device does not occupy additional space in appearance, which solves the need for shock absorption even when the space in the fan box is small or the space is limited. The fan assembly is only composed of a fan, and the space is small. Even if the outer size of the fan is larger than the inner wall size of the fan box, the purpose of installing the fan device in the box can be achieved.

The prior art usually adopts the fan installation structure of the fan sub-box as shown in Figs. 9-11. When the fan of the fan sub-box is assembled, the fan 3 needs to pass through the shock-absorbing nail 2 and the front support 1 and the rear support 4. The fan assembly 5 is connected together to form the fan assembly 5, and then the fan assembly 5 is placed in the box body of the fan plug-in box 6, and the fan assembly is fixed to the four walls of the fan plug-in box body by screws 7. It can be seen that the structure adopted in the prior art has the following disadvantages:

1) The assembly process is complicated. The installation of the fan is fixed by the front and rear brackets and multiple screws, and the fixing of the fan assembly and the fan box body also needs to be turned over and screwed;

2) Poor maintenance. In the field of communication and electronic equipment, the fan box plays a vital role in the normal operation of the equipment system. Once the fan does not work and stops running, the operating temperature of the equipment will rise rapidly, causing the core chip in the equipment to exceed the operating temperature or even crash. ；

3) The installation space of the shock absorber is small or the space is limited. The fan in Fig. 11 has a large external size, and the inside of the fan box has a small space for installing the shock absorber, and there is not enough space to install the fixed bracket of the fan.

Compared with the prior art, the fan device of the embodiment of the present disclosure can connect and fix the fan 310 and the fan subrack 100 together without installing screws and other transition structural parts, and implements a quick installation process and convenient operation. Maintainability, not only can realize the vibration reduction and noise reduction of the fan sub-box in the communication and electronic equipment during operation, but also can effectively improve the production efficiency and fast maintainability of the fan sub-box in the communication and electronic equipment. Good application promotion value, and can achieve the following effective benefits:

1. As there is no need for various brackets to fix the fan and rubber column, the assembly process of the fan device is extremely simple and screw-free, which can greatly reduce the structural manufacturing cost of the existing fan sub-box and the assembly process cost of the production line. For manufacturers with a large range of applications and consumption in communication equipment, the economic benefits are expected to be considerable; 2. During the assembly process, the assembly parts and assembly procedures are simplified, and the equipment is more reliable. At the same time, the rubber column can be used as a general-purpose part and is widely used in various shock absorption designs.

In addition to the above-mentioned fan device, the present disclosure also provides a communication device having the fan device and a fan plug-in box adapted to the fan device.

The preferred embodiments of the present disclosure are described above with reference to the accompanying drawings, and the scope of rights of the present disclosure is not limited thereby. Any modification, equivalent replacement and improvement made by those skilled in the art without departing from the scope and essence of the present disclosure shall fall within the scope of the rights of the present disclosure.

Claims

A fan device is arranged to be arranged in a space enclosed by a box body and a cover plate of a fan plug-in box, and includes a fan assembly, and further includes:

A first connecting structure connecting the upper part of one side of the fan assembly and the upper part of the side plate of the box body;

A second connecting structure connecting the upper part of the other side of the fan assembly and the cover plate;

The third connecting structure connects the two sides of the lower part of the fan assembly and the two sides of the bottom plate of the box body.
The fan device according to claim 1, wherein the first connection structure comprises:

A mounting hole provided on the upper part of one side of the fan assembly;

It is provided with a matching part matched with the mounting hole and an elastic column for clamping the clamping part of the side plate.
The fan device according to claim 2, wherein the elastic column further comprises:

Both ends are respectively connected to the mating part and the stop part of the clamping part, and the diameter of the stop part is larger than the diameter of the mating part and the clamping part.
The fan device according to claim 3, wherein the elastic column further comprises:

A guide part connected to an end of the mating part away from the stop part, and the diameter of the connecting part of the guide part and the mating part is larger than the diameter of the mating part.
The fan device according to claim 4, wherein the guide part has an equal diameter part and a frustum part connected to one end of the equal diameter part, and a large end of the frustum part is located between the guide part and the mating part The connection point of the connection.
The fan device according to claim 5, wherein the guiding part, the matching part, the stop part, and the clamping part of the elastic column are coaxial.
The fan device according to claim 1, wherein the second connection structure comprises:

A mounting hole provided on the upper part of the other side of the fan assembly;

It is provided with a matching part matched with the mounting hole and an elastic column for clamping the clamping part of the cover plate.
The fan device according to claim 1, wherein the third connection structure comprises:

Mounting holes provided on both sides of the lower part of the fan assembly;

The elastic column is provided with a matching part matched with the mounting hole and a clamping part for clamping the bottom plate.
The fan device according to claim 2 or 7 or 8, wherein the side plate, the cover plate and the bottom plate are respectively the side plates provided with a card slot or a bayonet that is configured to engage with the clamping part of the corresponding elastic column, Cover and bottom plate.
A communication device, comprising the fan device according to any one of claims 1-9.