CN109089400B

CN109089400B - Air duct sealing structure and electronic equipment

Info

Publication number: CN109089400B
Application number: CN201810829849.8A
Authority: CN
Inventors: 唐光智
Original assignee: New H3C Information Technologies Co Ltd
Current assignee: New H3C Information Technologies Co Ltd
Priority date: 2018-07-25
Filing date: 2018-07-25
Publication date: 2020-05-15
Anticipated expiration: 2038-07-25
Also published as: CN109089400A

Abstract

The embodiment of the invention provides an air duct sealing structure and electronic equipment, and relates to the field of electronic equipment. The air duct sealing structure is arranged at a bearing part of the electronic equipment and comprises a support, a turning plate and a pushing part, wherein the support is encircled to form a vent and is connected with the bearing part, the turning plate is rotatably connected to the support and seals the vent, and the pushing part is movably connected to the support and is used for moving relative to the support under the action of external force and pushing the turning plate to rotate relative to the support so as to open the vent. The air duct sealing structure and the electronic equipment provided by the embodiment of the invention can improve the heat dissipation efficiency, reduce the energy consumption, effectively reduce the impact sound when the functional module is plugged and pulled out, and improve the user experience.

Description

Air duct sealing structure and electronic equipment

Technical Field

The invention relates to the field of electronic equipment, in particular to an air duct sealing structure and electronic equipment.

Background

The IT technology is rapidly developed, the requirements of applications such as cloud computing, data centers and AI on the performance of equipment are higher and higher, the power consumption of the equipment is also increased continuously, most of the energy consumption is consumed in a thermal form, and in the face of the requirements of emission reduction, energy conservation and severe carbon emission, equipment manufacturers pay attention to energy conservation and emission reduction while continuously improving the performance of the equipment. At present, most equipment is cooled by adopting a forced air cooling mode, namely, a fan is used for increasing air flow in the equipment and taking away heat generated by the equipment. An existing electronic device is provided with a plurality of device modules and fan modules, the device modules are not always fully inserted, if the front end is not used for blocking a fan air duct, most of wind flows away from a place where the modules are not inserted, heat dissipation of the system is not good, a large amount of energy is wasted, and the electronic device runs counter to the energy-saving and environment-friendly concept.

Disclosure of Invention

One objective of the present invention is to provide an air duct sealing structure, which can improve heat dissipation efficiency and avoid energy waste.

Another object of the present invention is to provide an electronic device, which can improve heat dissipation efficiency and avoid energy waste.

The embodiment of the invention is realized by the following steps:

an air duct sealing structure is arranged on a bearing part of electronic equipment and comprises a support, a turning plate and a pushing part, wherein the support is encircled to form a vent and is connected with the bearing part, the turning plate is rotationally connected to the support and seals the vent, and the pushing part is movably connected to the support and is used for moving relative to the support under the action of external force and pushing the turning plate to rotate relative to the support so as to open the vent.

Further, the pushing part comprises a push rod, the support is provided with a sliding rail, and the push rod is in sliding fit with the sliding rail.

Furthermore, the pushing part further comprises a pushing part and a first elastic piece, the pushing part is connected with the push rod, a stop block is arranged on the support, the first elastic piece is arranged on the push rod, one end of the first elastic piece abuts against the pushing part, and the other end of the first elastic piece abuts against the stop block.

Furthermore, a first limiting structure is arranged on the pushing part and used for abutting against one end part of the sliding rail after the push rod slides towards the turning plate along the sliding rail; the push rod is provided with a second limiting structure which is used for supporting the end part of the other end of the slide rail after the push rod slides along the slide rail away from the turning plate.

Furthermore, one end of the push rod is provided with a propping surface, the turning plate is provided with a first propping part, and the propping surface is used for propping against the first propping part after the push rod slides towards the turning plate along the slide rail so as to push the turning plate to rotate relative to the bracket.

Furthermore, the air duct sealing structure further comprises a rotating shaft and a second elastic piece, the turning plate is provided with an installation part, one end of the rotating shaft is in running fit with the installation part, the other end of the rotating shaft is in running fit with the support, the support is provided with a second abutting part, the second elastic piece is sleeved outside the rotating shaft, one end of the second elastic piece abuts against the first abutting part, and the other end of the second elastic piece abuts against the second abutting part.

Furthermore, the bearing part is a back plate, and the bracket is provided with a fixing structure which is used for being matched with the back plate so as to fix the bracket on the back plate.

The embodiment of the invention also provides electronic equipment, which comprises a functional module, a case, a bearing part and an air duct sealing structure, wherein the case is provided with a groove position for accommodating the functional module, the bearing part corresponds to the groove position, the support is connected with the bearing part, the air duct sealing structure comprises a support, a turning plate and a pushing part, the support surrounds a ventilation opening, an air duct is formed along the groove position and the ventilation opening, the support is connected with the bearing part, the turning plate is rotationally connected with the support and seals the ventilation opening, and the pushing part is movably connected with the support. When the functional module is inserted into the air duct, the pushing piece moves relative to the support under the action of the pushing force of the functional module and pushes the turning plate to rotate relative to the support, and the ventilation opening is opened to open the air duct.

Further, the bearing part is a back plate, an installation through hole is formed in the back plate, a fixing structure is arranged on the support and matched with the back plate, and the air duct sealing structure is installed in the installation through hole.

The air duct sealing structure and the electronic equipment provided by the embodiment of the invention have the beneficial effects that: the air duct sealing structure provided by the embodiment of the invention can be arranged in an air duct in a chassis of electronic equipment, when the functional module is inserted into a slot position of the chassis, the pushing piece moves relative to the bracket under the action of the pushing force of the functional module, the turning plate is pushed to rotate relative to the bracket, the vent is opened, so that the air duct corresponding to the slot position is opened, and at the moment, the heat dissipation fan of the electronic equipment can dissipate heat of the functional module corresponding to the slot position. When the functional module of the electronic equipment is in the slot position which is not inserted into the case, the air channel corresponding to the slot position is sealed by the turning plate, and the air blown by the cooling fan of the electronic equipment to the air channel cannot overflow from the air channel corresponding to the slot position which is not inserted into the functional module, so that the heat dissipation cannot be influenced, and the energy waste is avoided. Therefore, the air duct sealing structure and the electronic equipment can improve the heat dissipation efficiency and avoid energy waste.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an electronic device to which an air duct sealing structure according to an embodiment of the present invention is applied;

fig. 2 is a schematic internal structural diagram of an electronic device to which the air duct sealing structure according to the embodiment of the present invention is applied;

fig. 3 is a structural schematic diagram of a first view angle of a sealing structure of an air duct according to an embodiment of the present invention;

FIG. 4 is a partial structural schematic view of the airway seal structure of FIG. 2;

FIG. 5 is a schematic structural diagram of a stopper of an air duct sealing structure according to an embodiment of the present invention;

FIG. 6 is a structural diagram illustrating a second perspective view of a sealing structure of an air duct according to an embodiment of the present invention;

FIG. 7 is a schematic view of the sealing structure of the air duct according to the embodiment of the present invention when the functional module is not inserted into the air duct;

fig. 8 is a schematic view of a state of the air duct sealing structure according to the embodiment of the present invention after the functional module is inserted into the air duct.

Icon: 1-an electronic device; 10-air duct sealing structure; 20-a case; 211-slot position; 212-an insertion opening; 30-a functional module; 40-a heat dissipation fan; 50-a bolster; 110-a scaffold; 111-a first mounting plate; 112-a second mounting plate; 1121-stop block; 1122-shaft hole; 113-side plate; 114-a fixed structure; 115-a slide rail; 116-a chute; 117-second abutment; 120-turning plate; 121-a first holding portion; 122-a mounting portion; 130-a pusher; 131-a push rod; 1311-a holding surface; 1312-a second limit structure; 132-a pushing portion; 1321-a first limit structure; 133-a first elastic member; 134-a locus of containment; 140-a rotating assembly; 141-a rotating shaft; 142-a second elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for the purpose of facilitating the description and simplifying the description, but do not indicate or imply that the equipment or the elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and fig. 2, the present embodiment provides an air duct sealing structure 10, which is applied to an electronic device 1, where the electronic device 1 may be a communication device, a server, or a storage device. The electronic device 1 includes an air duct sealing structure 10, a chassis 20, a functional module 30, a cooling fan 40, and a receiving portion 50, where the functional module 30 may be a handle bar when the electronic device 1 is a communication device, and the functional module 30 may be a storage node or a computing node when the electronic device 1 is a server or a storage device. The chassis 20 is provided with slots 211 that receive the functional modules 30. The receiving portion 50 is disposed in the case 20, and the receiving portion 50 corresponds to the slot 211. It should be understood that there may be one or more slots 211, and each slot 211 corresponds to one air duct. The air duct sealing structure 10 is arranged in the air duct, and one air duct can be correspondingly provided with one air duct sealing structure 10. The air duct sealing structure 10 is used to selectively close or open the corresponding air duct, and the air duct sealing structure 10 is provided to the bearing 50. The functional module 30 is pluggable into the slot 211. When the functional module 30 is not inserted into the slot 211, the air duct sealing structure 10 seals the corresponding air duct, and when the functional module 30 is inserted into the slot 211, the air duct sealing structure 10 opens the air duct under the action of the functional module 30. The heat dissipation fan 40 is disposed in the chassis 20 and used for blowing air to the air duct to dissipate heat of the functional module 30 inserted into the slot 211.

In this embodiment, the receiving portion 50 may be a back plate, one end of the slot 211 is provided with an insertion hole 212 for inserting the functional module 30, and the other end is connected to the back plate. The back plate is provided with a mounting through hole (not shown) in which the air duct sealing structure 10 is mounted.

Of course, in other embodiments of the present invention, the electronic device 1 may not be provided with a back panel, and the receiving portion 50 may be a housing on the back of the chassis 20. That is, the air duct sealing structure 10 may be mounted on the back plate, or may be mounted on another structure in the housing 20, for example, a housing on the back of the housing 20.

Referring to fig. 3, the air duct sealing structure 10 includes a bracket 110, a turning plate 120 and a pushing member 130. The bracket 110 is used to connect with the receiving portion 50 to fix the air duct sealing structure 10 to the receiving portion 50. The bracket 110 defines a vent (not shown) for communicating with the slot 211. In this embodiment, an air duct is formed along the slot 211 and the vent. The flap 120 is rotatably connected to the bracket 110 and closes the ventilation opening, and the pushing member 130 is movably connected to the bracket 110 and is used for moving relative to the bracket 110 under the action of external force and pushing the flap 120 to rotate relative to the bracket 110 so as to open the ventilation opening. When the flap 120 closes the vent, the air duct is closed, and when the vent is open, the air duct is open.

In this embodiment, the bracket 110 is a substantially rectangular frame structure. The bracket 110 may include a first mounting plate 111 and a second mounting plate 112 disposed opposite to each other and two side plates 113 disposed opposite to each other, and both sides of the first mounting plate 111 and the second mounting plate 112 are connected to opposite side portions of the two side plates 113, respectively. The first mounting plate 111 is located at an upper portion of the bracket 110, and the second mounting portion 122 is located at a lower portion of the bracket 110.

Referring to fig. 4, in the present embodiment, a fixing structure 114 may be disposed on the bracket 110 and used for cooperating with the back plate to fix the bracket 110 to the back plate, so that the bracket 110 is installed in the installation through hole. Alternatively, the fixing structure 114 may be a hook for engaging with the back plate. In this embodiment, there are three fixing structures 114, one of the fixing structures is disposed in the middle of the first mounting plate 111, the other two fixing structures are disposed on the second mounting plate 112, and the three fixing structures 114 are arranged in a substantially triangular shape.

Of course, the number and specific configuration of the securing structures 114 may be in other forms in other embodiments of the invention. For example, two, four or more, and a screw, a snap, or the like may be used.

Referring to fig. 3, in addition, the bracket 110 may be provided with a slide rail 115, and the slide rail 115 is provided with a slide groove 116 for the sliding fit of the pushing member 130. In this embodiment, the sliding rail 115 is disposed on the second mounting plate 112. The number of the sliding rails 115 is two, the two sliding rails 115 are arranged oppositely, and the two side parts of the pushing member 130 are respectively embedded into the sliding grooves 116 of the two sliding rails 115.

The pushing member 130 protrudes out of the back plate, and is used for moving relative to the bracket 110 under the pushing action of the functional module 30 after the functional module 30 is inserted into the slot 211 from the insertion opening 212, and pushing the turning plate 120 to rotate relative to the bracket 110 so as to open the ventilation opening.

The pusher 130 serves as a transmission member for pushing the flap 120. The pushing member 130 may include a push rod 131, a pushing portion 132, and a first elastic member 133. Both side portions of the push rod 131 are respectively inserted into the slide grooves 116 of the two slide rails 115 and are adapted to slide along the slide grooves 116. The pushing portion 132 is connected to one end of the push rod 131, and is used for being acted by the pushing force of the functional module 30 to drive the push rod 131 to move toward the flap 120. The other end of the push rod 131 is used for pushing the turning plate 120 to rotate. Referring to fig. 5, the bracket 110 may be provided with a stopper 1121, and the first elastic element 133 is disposed on the push rod 131, and one end of the first elastic element abuts against the pushing portion 132, and the other end abuts against the stopper 1121. In this embodiment, the first elastic member 133 is a straight spring. The stopper 1121 is disposed on the second mounting plate 112.

Referring to fig. 3, when the functional module 30 is inserted into the slot 211, the functional module 30 pushes the pushing portion 132, so that the pushing rod 131 pushes the turning plate 120 to rotate, and the pushing portion 132 compresses the first elastic member 133. When the functional module 30 is pulled out from the slot 211, the force acting on the pushing portion 132 is removed, and the pushing portion 132 is retracted to the original state by the elastic restoring force of the first elastic member 133.

The push rod 131 extends in the same direction as the slot 211 extends. One end of the push rod 131 away from the pushing part 132 is provided with a supporting surface 1311 for pushing the flap 120 to rotate relative to the bracket 110. In this embodiment, the number of the abutting surfaces 1311 is two, both of the abutting surfaces 1311 are inclined surfaces, and the two abutting surfaces 1311 form a V shape. The push rod 131 is provided with a second limiting structure 1312, which is used for abutting against one end of the slide rail 115 far from the pushing part 132 after the push rod 131 slides along the slide rail 115 away from the flap 120. In this embodiment, the second position-limiting structure 1312 is protruded from a side surface of the push rod 131 far from the second mounting portion 122. When the functional module 30 is pulled out from the slot 211, the acting force acting on the pushing portion 132 is removed, the pushing portion 132 moves under the elastic restoring force of the first elastic member 133, so that the push rod 131 slides away from the flip 120 along the slide rail 115, and the second limiting structure 1312 limits the push rod 131 until the push rod 131 retracts to the initial state.

The pushing portion 132 has a substantially rectangular block-like structure. The pushing portion 132 is provided with a first limiting structure 1321, which is used for abutting against one end of the sliding rail 115 after the push rod 131 slides along the sliding rail 115 towards the turning plate 120. It should be understood that the first limiting structure 1321 limits the moving stroke of the pushing rod 131, in this embodiment, when the first limiting structure 1321 abuts against one end of the sliding rail 115, the other end of the pushing rod 131 pushes the turning plate 120 to rotate to a state substantially parallel to the pushing rod 131, so that the ventilation opening can reach a maximum opening state, so that the wind blown by the heat dissipation fan 40 can smoothly pass through the ventilation opening.

Referring to fig. 3 and fig. 5, the pushing element 130 may further include a receiving portion 134, the receiving portion 134 is connected to the pushing rod 131 and encloses a receiving space for receiving the first elastic element 133, and the receiving portion 134 can prevent the first elastic element 133 from being ejected from the pushing rod 131 when being pressed. The stopper 1121 may be disposed in the accommodating space, so that one end of the first elastic element 133 abuts against the stopper 1121. In this embodiment, the accommodating portion 134 is elongated and has an arched cross section, and the opening side of the arch is connected to the push rod 131. One end of the accommodating portion 134 is spaced apart from the pushing portion 132, so that the first elastic member 133 extends into the accommodating space from a gap between the accommodating portion 134 and the pushing portion 132, which facilitates the installation of the first elastic member 133.

Referring to fig. 3, the number of the turning plates 120 is not limited in detail. In this embodiment, the two turning plates 120 are arranged oppositely, and the two turning plates 120 are V-shaped. The turning plate 120 is provided with a first abutting portion 121 for abutting against the abutting surface 1311. That is, the abutting surface 1311 abuts against the first abutting portion 121 after the push rod 131 slides along the slide rail 115 toward the flap 120, and pushes the flap 120 to rotate relative to the bracket 110. In this embodiment, the two turning plates 120 are respectively provided with a first abutting portion 121 at a side bottom close to each other. Optionally, the first abutting portion 121 is a cam structure. In addition, in the present embodiment, when the two flaps 120 rotate to open the ventilation opening, wind may blow through between the two flaps 120 and between the flaps 120 and the side plate 113.

Referring to fig. 6, further, the air duct sealing structure 10 may further include a rotating assembly 140, the rotating assembly 140 includes a rotating shaft 141 and a second elastic member 142, the turning plate 120 is provided with a mounting portion 122, one end of the rotating shaft 141 is rotatably matched with the mounting portion 122, the other end is rotatably matched with the bracket 110, the bracket 110 is provided with a second abutting portion 117, the second elastic member 142 is sleeved outside the rotating shaft 141, and one end of the second elastic member abuts against the first abutting portion 121, and the other end abuts against the second abutting portion 117. Wherein, the second elastic member 142 is a torsion spring.

In this embodiment, the two turning plates 120 are respectively provided with a mounting portion 122 at the upper portion and the lower portion, and each mounting portion 122 is correspondingly and rotatably engaged with the rotating shaft 141 of one rotating assembly 140. The first mounting plate 111 and the second mounting plate 112 are respectively provided with two shaft holes 1122, and each shaft hole 1122 is correspondingly and rotatably matched with the rotating shaft 141 of one rotating assembly 140. The center lines of the corresponding shaft holes 1122 of the first mounting plate 111 and the second mounting plate 112 are the same.

The flap 120 is always kept in the closed state under the elastic force of the second elastic member 142. When the function module 30 is inserted into the slot 211, the function module 30 pushes the pushing part 132, so that the push rod 131 pushes the flap 120 to rotate, and the flap 120 compresses the second elastic member 142. When the functional module 30 is pulled out from the slot 211, the acting force acting on the pushing portion 132 is removed, the pushing portion 132 is retracted to the initial state by the elastic restoring force of the first elastic member 133, and the flap 120 is simultaneously returned to the state of closing the vent by the elastic restoring force of the second elastic member 142.

The working process of the air duct sealing structure 10 provided in this embodiment is specifically described as follows:

referring to fig. 7, when the functional module 30 is not inserted, the pushing portion 132 and the pushing rod 131 are at the initial position under the elastic force of the first elastic member 133, and the pushing rod 131 partially protrudes from the back plate. The flap 120 is in an initial state of closing the ventilation opening under the elastic force of the second elastic member 142, at this time, the airflow cannot pass through, and the air duct is in a sealed state.

Referring to fig. 8, after the functional module 30 is inserted, the functional module 30 pushes the pushing portion 132 to drive the push rod 131 to slide along the sliding slot 116, the abutting surface 1311 abuts against the first abutting portion 121, so that the turning plate 120 is pushed to rotate around the rotating shaft 141 until the turning plate rotates to a state parallel to the push rod 131, at this time, the air duct is completely opened, and the air blown by the cooling fan 40 can smoothly pass through between the two turning plates 120 and between the turning plate 120 and the side plate 113.

Referring to fig. 7, when the functional module 30 is pulled out, the rear end of the functional module 30 is separated from the air duct sealing structure 10, the acting force of the pushing portion 132 is removed, and the pushing portion 132 retracts the push rod 131 to the initial position under the elastic restoring force of the first elastic element 133. Meanwhile, the flap 120 returns to the initial state of the closed ventilation opening under the elastic restoring force of the second elastic member 142, so that the air duct is closed.

In summary, according to the air duct sealing structure 10 provided in the embodiment of the present invention, when the functional module 30 is inserted into the slot 211 of the chassis 20, the pushing member 130 moves relative to the bracket 110 under the pushing force of the functional module 30, and pushes the turning plate 120 to rotate relative to the bracket 110, so as to open the air vent, thereby opening the air duct. The heat dissipation fan 40 of the electronic device 1 dissipates heat from the functional module 30 in the slot 211. When the functional module 30 is not inserted into the slot 211 of the chassis 20, the corresponding air duct is closed by the flap 120, the air blown by the cooling fan 40 of the electronic device 1 to the air duct corresponding to the slot 211 into which the functional module 30 is inserted cannot overflow from the air duct corresponding to the slot 211 into which the functional module 30 is not inserted, thereby achieving partitioned cooling, and at this time, the cooling fan 40 corresponding to the slot 211 into which the functional module 30 is not inserted can be controlled to be closed or to operate at a reduced rotation speed by the system, so that the system can be guaranteed to perform good cooling while reducing energy consumption, and energy waste is avoided. In addition, when the functional module 30 is inserted into the slot 211 of the chassis 20, since the functional module 30 does not directly impact the turning plate 120 but acts on the pushing member 130, the turning plate 120 is pushed to rotate by the pushing member 130, so that the impact sound generated when the functional module 30 is inserted into or pulled out from the slot can be effectively reduced, and the user experience can be improved. In addition, the flap 120 is in an initial state of closing the vent under the elastic force of the second elastic member 142, so that the flap 120 is difficult to be blown away by the airflow of the heat dissipation fan 40, and the air duct can be sealed more tightly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air duct sealing structure is characterized by being arranged at a receiving part of electronic equipment and comprising a support, a turning plate and a pushing part, wherein the support is encircled to form a ventilation opening and is connected with the receiving part; the pushing part comprises a push rod, the support is provided with a sliding rail, and the push rod is in sliding fit with the sliding rail.

2. The air duct sealing structure according to claim 1, wherein the pushing member further includes a pushing portion and a first elastic member, the pushing portion is connected to the push rod, the bracket is provided with a stopper, and the first elastic member is disposed on the push rod, and one end of the first elastic member abuts against the pushing portion and the other end abuts against the stopper.

3. The air duct sealing structure according to claim 2, wherein the pushing portion is provided with a first limiting structure for abutting against an end of the sliding rail after the push rod slides along the sliding rail toward the turning plate; the push rod is provided with a second limiting structure which is used for supporting the end part of the other end of the slide rail after the push rod slides along the slide rail away from the turning plate.

4. The air duct sealing structure according to claim 1, wherein one end of the push rod is provided with a supporting surface, the turning plate is provided with a first supporting portion, and the supporting surface is used for supporting the first supporting portion after the push rod slides along the slide rail towards the turning plate, and pushing the turning plate to rotate relative to the bracket.

5. The air duct sealing structure according to claim 4, characterized in that the air duct sealing structure further comprises a rotating shaft and a second elastic member, the turning plate is provided with an installation portion, one end of the rotating shaft is in running fit with the installation portion, the other end of the rotating shaft is in running fit with the bracket, the bracket is provided with a second abutting portion, the second elastic member is sleeved outside the rotating shaft, and one end of the second elastic member abuts against the first abutting portion, and the other end of the second elastic member abuts against the second abutting portion.

6. The air duct sealing structure according to claim 1, wherein the receiving portion is a back plate, and the bracket is provided with a fixing structure for cooperating with the back plate to fix the bracket to the back plate.

7. An electronic device, comprising a functional module, a case, a receiving portion and the air duct sealing structure according to any one of claims 1 to 6, wherein the case is provided with a slot for accommodating the functional module, the receiving portion corresponds to the slot, the bracket is connected with the receiving portion, and an air duct is formed along the slot and the ventilation opening; when the functional module is inserted into the slot, the pushing piece moves relative to the support under the action of the pushing force of the functional module and pushes the turning plate to rotate relative to the support, and the ventilation opening is opened to open the air duct.

8. The electronic device according to claim 7, wherein the receiving portion is a back plate, a mounting through hole is formed in the back plate, and a fixing structure is formed in the bracket and cooperates with the back plate to mount the air duct sealing structure in the mounting through hole.