Air duct structure

Abstract

The utility model relates to the technical field of air duct structures, in particular to an air duct structure which comprises an air duct body and a front cover plate. The air duct body comprises a front plate, a heat dissipation opening is formed in the front plate, an integrally-formed track structure is arranged at the heat dissipation opening, and the track structure comprises a first sliding groove and a second sliding groove with opposite groove openings. The first sliding groove comprises a first side wall and a second side wall which are oppositely arranged. The second sliding groove comprises at least one bending structure and a fourth side wall, so that the side, facing the second side wall, of the first side wall is coplanar with the side, facing the fourth side wall, of the bending structure; at least one bending structure is arranged, so that the side, facing the second side wall, of the first side wall and the side, facing the fourth side wall, of the bending structure are arranged in a coplanar mode, the front cover plate can smoothly move in the first sliding groove and the second sliding groove, and the blocking problem is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct structures, and in particular to an air duct structure. Background Art

[0002] The sheet metal air duct structure has the advantages of low cost, simple technology and high assembly efficiency, and is widely used near the radiator in distributed small group string photovoltaic inverters.

[0003] In the prior art, the air duct structure is usually welded from multiple side panels, and a track is welded at the front end of the air duct to install the front cover. Although the welding method is simple, the multiple side panels and the track must be assembled before welding, which takes a long time, resulting in low work efficiency and high cost. Utility Model Content

[0004] The problem solved by the utility model is that a plurality of side panels and rails of the existing air duct structure need to be assembled first and then welded, which takes a long time, resulting in low work efficiency and high cost.

[0005] In order to solve the above problems, the utility model proposes the following technical solutions:

[0006] A duct structure, comprising an duct body and a front cover; the duct body comprises a front plate, the front plate is provided with a heat dissipation port, the heat dissipation port has an integrally formed track structure, the track structure comprises a first slide groove and a second slide groove which are arranged opposite to each other;

[0007] The first chute includes a first side wall and a second side wall that are arranged opposite to each other;

[0008] The second slide groove comprises a bending structure and a fourth side wall, and at least one bending structure is provided so that a side of the first side wall facing the second side wall and a side of the bending structure facing the fourth side wall are coplanar;

[0009] The opposite side edges of the front cover are respectively slidably inserted into the first sliding groove and the second sliding groove.

[0010] Compared with the prior art, the air duct structure provided by the utility model has but is not limited to the following beneficial effects:

[0011] The first slide groove is bent by the whole metal plate of the air duct main body itself to obtain the first side wall and the second side wall, avoiding the addition of other structures and the use of welding connections, which is beneficial to increasing the integrity of the connection between the first slide groove and the air duct main body; the second slide groove is bent by the whole metal plate of the air duct main body itself to obtain the bending structure and the fourth side wall, avoiding the addition of other structures and the use of welding connections, which is beneficial to increasing the integrity of the connection between the second slide groove and the air duct main body; at least one bending structure is provided, so that the side of the first side wall facing the second side wall and the side of the bending structure facing the fourth side wall are coplanar, which is beneficial to making the front cover plate move smoothly in the first slide groove and the second slide groove, avoiding the occurrence of jamming problems.

[0012] Preferably, the first slide groove further includes a connecting top wall, and the connecting top wall is connected between the first side wall and the second side wall.

[0013] Preferably, the second slide groove also includes a connecting bottom wall, and the bending structure includes a connecting side wall and a third side wall, the connecting side wall is bent from bottom to top toward the inside of the air duct main body, and the third side wall is bent outward from top to bottom from the upper end of the connecting side wall, and the connecting bottom wall connects the third side wall and the fourth side wall, the third side wall and the fourth side wall are arranged opposite to each other, and the side of the first side wall facing the second side wall is coplanar with the side of the third side wall facing the fourth side wall.

[0014] Preferably, the air duct structure also includes a limiting member, which includes a limiting bolt and a limiting hole, wherein the limiting bolt is fixed to the air duct body and is located at the edge of one end of the first slide groove and the second slide groove close to the heat dissipation port; the limiting hole is arranged on the front cover plate, and the limiting hole passes through one side edge of the front cover plate to form an opening, and the limiting bolt is used to enter the limiting hole from the opening.

[0015] Preferably, the limiting hole includes a first hole, a second hole and a third hole, the first hole is connected with the opening and extends in a direction close to the middle of the front cover plate, the second hole is connected with the first hole and extends in a direction perpendicular to the first hole, the third hole is connected with the second hole and is arranged parallel to the first hole, and the third hole and the first hole are arranged on the same side of the second hole.

[0016] Preferably, the distance between the first slide groove and the second slide groove is greater than the width of the front cover plate, so that the front cover plate can be displaced up and down between the first slide groove and the second slide groove to achieve the complete insertion of the limit bolt into the third hole.

[0017] Preferably, a clamping hole is provided on the air duct body at one end of the heat dissipation port away from the limiting bolt;

[0018] The air duct structure further includes a buckle member disposed on an end of the front cover plate away from the limiting hole, and the buckle member is used to buckle with the buckle hole.

[0019] Preferably, the side of the clamping hole away from the heat dissipation port passes through the side wall of the air duct body, and the upper end of the inner wall of the clamping hole is provided with a clamping groove.

[0020] Preferably, the fastener includes a clamping block, a connecting rod, an operating block and a clamping spring. A mounting hole is provided on the end of the front cover plate away from the limiting hole. The connecting rod passes through the mounting hole and can move up and down in the mounting hole. The clamping spring is connected between the connecting rod and the inner top wall or the inner bottom wall of the mounting hole. The two ends of the connecting rod are respectively connected to the clamping block and the operating block, and the operating block is located on the outside of the front cover plate. The connecting rod is provided with an end of the clamping block for inserting into the clamping hole, and the clamping block is used to insert into the clamping slot.

[0021] Preferably, the front cover plate is provided with heat dissipation mesh holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the main structure of the air duct of the air duct structure of an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the cross-sectional structure of the first chute and the second chute of the air duct structure of an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the air duct structure of an embodiment of the utility model;

[0025] Figure 4 For the utility model embodiment Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 5 This is a schematic diagram of the unfolded structure of the air duct structure of an embodiment of the utility model;

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the snap-fitting member of the air duct structure of an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 1 air duct body, 10 heat dissipation port, 100 clamping hole, 11 first side plate, 12 second side plate, 13 front plate, 14 rear plate, 15 bottom plate, 2 front cover plate, 20 mounting hole, 200 heat dissipation mesh, 3 limiting member, 31 limiting bolt, 32 limiting hole, 33 opening, 34 first hole, 35 second hole, 36 third hole, 4 first slide groove, 41 first side wall, 42 second side wall, 43 connecting top wall, 5 second slide groove, 50 bending plate, 51, connecting side wall, 52 third side wall, 53 connecting bottom wall, 54 fourth side wall, 6 clamping member, 60 clamping groove, 61 clamping block, 62 connecting rod, 63 operating block, 64 clamping spring. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] It should be noted that, in the coordinate system XYZ provided in this document, the positive direction of the X-axis represents the right, the reverse direction of the X-axis represents the left, the positive direction of the Y-axis represents the front, the reverse direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the reverse direction of the Z-axis represents the bottom; the meanings of the Z-axis, X-axis, and Y-axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] See also Figure 1 and Figure 2 The utility model provides an air duct structure, including an air duct body 1 and a front cover plate 2; the air duct body 1 includes a front plate 13, a heat dissipation port 10 is arranged on the front plate 13, and an integrally formed track structure is provided at the heat dissipation port 10, and the track structure includes a first slide groove 4 and a second slide groove 5 which are arranged opposite to each other; the first slide groove 4 includes a first side wall 41 and a second side wall 42 which are arranged opposite to each other; the second slide groove 5 includes a bending structure and a fourth side wall 54, and at least one bending structure is provided so that the side of the first side wall 41 facing the second side wall 42 is coplanar with the side of the bending structure facing the fourth side wall 54; the opposite side edges of the front cover plate 2 are slidably inserted into the first slide groove 4 and the second slide groove 5 respectively.

[0034] Among them, the upper edge of the heat dissipation port 10 is used to bend outward to form a first slide groove 4 of a "U"-shaped structure with the surface of the front plate 13. The lower edge of the heat dissipation port 10 of the front plate 13 is located at the left and right ends of the heat dissipation port 10 and is cut vertically respectively to form a bending plate 50. The bending plate 50 is used to bend outward to form a second slide groove 5 of a "U"-shaped structure. The connection between the connecting side wall 51 and the front plate 13 is recessed toward the air duct body 1, that is, it is first bent inwardly and then pressed together, in order to produce an inward limiting surface for the second slide groove 5. At the same time, the pressing part can compensate for the offset loss caused by the limiting surface, ensuring that the inner side wall of the second slide groove 5 close to the inside of the air duct body 1 is coplanar with the inner side wall of the first slide groove 4 close to the inside of the air duct body 1.

[0035] Specifically, the air duct main body 1 includes a first side panel 11, a second side panel 12, a front panel 13, a rear panel 14 and a bottom panel 15, the first side panel 11, the second side panel 12, the front panel 13 and the rear panel 14 are respectively connected to the four sides of the bottom panel 15, and the first side panel 11, the second side panel 12, the front panel 13, the rear panel 14 and the bottom panel 15 are integrally formed by bending to form the hollow rectangular air duct main body 1. The first side panel 11, the second side panel 12, the front panel 13, the rear panel 14 and the bottom panel 15 are cut out of the whole metal plate to form the overall shape, and then are bent to form the hollow rectangular parallelepiped-shaped air duct body 1; the front panel 13 and the rear panel 14 are respectively arranged on the front and rear sides of the bottom panel 15, and the first side panel 11 and the second side panel 12 are respectively arranged on the left and right sides of the bottom panel 15; after the first side panel 11, the second side panel 12, the front panel 13, the rear panel 14 and the bottom panel 15 are bent, the joints between the first side panel 11 and the front panel 13, the joints between the first side panel 11 and the rear panel 14, the joints between the second side panel 12 and the front panel 13, and the joints between the second side panel 12 and the rear panel 14 are all reinforced by screws. The structure is connected by bending and screw reinforcement instead of the original assembly and welding process, which is conducive to improving installation efficiency and reducing production costs.

[0036] In this embodiment, the first slide groove 4 is bent by the whole metal plate of the air duct main body 1 itself to obtain the first side wall 41 and the second side wall 42, avoiding the addition of other structures and the use of welding connections, which is beneficial to increasing the integrity of the connection between the first slide groove 4 and the air duct main body 1; the second slide groove 5 is bent by the whole metal plate of the air duct main body 1 itself to obtain the bending structure and the fourth side wall 54, avoiding the addition of other structures and the use of welding connections, which is beneficial to increasing the integrity of the connection between the second slide groove 5 and the air duct main body 1; at least one bending structure is provided, so that the side of the first side wall 41 facing the second side wall 42 and the side of the bending structure facing the fourth side wall 54 are coplanar, which is beneficial to making the front cover plate 2 move smoothly in the first slide groove 4 and the second slide groove 5, avoiding the occurrence of jamming problems.

[0037] Preferably, see Figure 2 The first slide groove 4 also includes a connecting top wall 43, and the connecting top wall 43 is connected between the first side wall 41 and the second side wall 42.

[0038] Specifically, the first side wall 41 is connected to the heat dissipation port 10 , the connecting top wall 43 is connected to the upper end of the first side wall 41 , and the second side wall 42 is connected to one end of the connecting top wall 43 and is arranged parallel to the first side wall 41 .

[0039] In this embodiment, the connecting top wall 43 connects the first side wall 41 and the second side wall 42 to form the first sliding groove 4 , so as to facilitate the front cover plate 2 to move smoothly in the first sliding groove 4 and the second sliding groove 5 .

[0040] Preferably, see Figure 2 The second slide groove 5 also includes a connecting bottom wall 53, and the bending structure includes a connecting side wall 51 and a third side wall 52. The connecting side wall 51 is bent from bottom to top toward the inside of the air duct body 1, and the third side wall 52 is bent outward from top to bottom from the upper end of the connecting side wall 51. The connecting bottom wall 53 connects the third side wall 52 and the fourth side wall 54. The third side wall 52 and the fourth side wall 54 are arranged opposite to each other, and the side of the first side wall 41 facing the second side wall 42 is coplanar with the side of the third side wall 52 facing the fourth side wall 54.

[0041] Specifically, the connecting side wall 51 is connected to the heat dissipation port 10 , the third side wall 52 is connected to the upper end of the connecting side wall 51 , the connecting bottom wall 53 is connected to the lower end of the third side wall 52 , and the fourth side wall 54 is connected to one end of the connecting bottom wall 53 and is arranged parallel to the third side wall 52 .

[0042] In this embodiment, the connecting bottom wall 53 connects the fourth side wall 54 and the third side wall 52 to form the second sliding groove 5 , so as to facilitate the front cover plate 2 to move smoothly in the first sliding groove 4 and the second sliding groove 5 .

[0043] Among them, the bending structure can be provided with multiple, the first side wall 41 can be provided with multiple bends, and the number of bends of the first side wall 41 is one less than the number of the bending structures, so as to ensure that the side of the first side wall 41 facing the second side wall 42 is coplanar with the side of the third side wall 52 facing the fourth side wall 54.

[0044] See also Figure 4 Preferably, the air duct structure also includes a limiting member 3, the limiting member 3 includes a limiting bolt 31 and a limiting hole 32, the limiting bolt 31 is fixed to the air duct body 1, and is located at the edge of one end of the first slide groove 4 and the second slide groove 5 close to the heat dissipation port 10; the limiting hole 32 is arranged on the front cover plate 2, the limiting hole 32 passes through one side edge of the front cover plate 2 to form an opening 33, and the limiting bolt 31 is used to enter the limiting hole 32 from the opening 33 to limit the displacement of the front cover plate 2.

[0045] Specifically, the first slide groove 4 and the second slide groove 5 are respectively arranged at the upper and lower ends of the heat dissipation port 10, so that the front cover plate 2 can enter between the first slide groove 4 and the second slide groove 5 from the left or right. The front cover plate 2 is pulled out along the length direction of the first slide groove 4 and the second slide groove 5, and a certain design gap is ensured between the first slide groove 4 and the second slide groove 5 and the front cover plate 2 in the up-down and front-back directions, so as to ensure that the front cover plate 2 can be pulled out smoothly.

[0046] In this embodiment, during installation, the edge of the front cover plate 2 is aligned with the first slide groove 4 and the second slide groove 5, and the front cover plate 2 is inserted into the first slide groove 4 and the second slide groove 5, and then the front cover plate 2 is pushed to move on the first slide groove 4 and the second slide groove 5. When the front cover plate 2 moves to cover the heat dissipation port 10, the front cover plate 2 is continuously pushed so that the limiting bolt 31 enters the limiting hole 32 from the opening 33, so that the front cover plate 2 is limited to the heat dissipation port 10 and will not continue to move. On the one hand, the limiting bolt 31 realizes that the front cover plate 2 moves along the slide On the one hand, it limits the position in the row direction, and on the other hand, it ensures the shaking amount of the front cover 2 in the up and down directions; wherein, the air duct structure installs the front cover 2 at the heat dissipation port 10 through the first slide groove 4 and the second slide groove 5, and fixes the front cover 2 at the heat dissipation port 10 through the limiting bolt 31 and the limiting hole 32. The structure is simple and easy to operate. On the one hand, it avoids the troublesome operation caused by the use of screws for fixing and installation, improves the installation and disassembly efficiency of the front cover 2, and is convenient for users to quickly clean up foreign objects accumulated between the front cover 2 and the radiator. On the other hand, the installation bolts can be omitted, which is beneficial to reduce production costs.

[0047] See also Figure 4 Preferably, the limiting hole 32 includes a first hole 34, a second hole 35 and a third hole 36, the first hole 34 is connected with the opening 33 and extends in a direction close to the middle of the front cover plate 2, the second hole 35 is connected with the first hole 34 and extends in a direction perpendicular to the first hole 34, the third hole 36 is connected with the second hole 35 and is arranged parallel to the first hole 34, and the third hole 36 and the first hole 34 are arranged on the same side of the second hole 35.

[0048] Preferably, the distance between the first slide groove 4 and the second slide groove 5 is greater than the width of the front cover plate 2, that is, the distance between the first slide groove 4 and the second slide groove 5 in the Z-axis direction in the figure is greater than the width of the front cover plate 2 in the Z-axis direction in the figure, so that the front cover plate 2 can move up and down between the first slide groove 4 and the second slide groove 5 to achieve the limit bolt 31 completely inserted into the third hole 36. The third hole 36 is arranged above the first hole 34.

[0049] See also Figure 4 Preferably, a chamfered structure is provided at a connection between the first hole 34 and the second hole 35 , and a chamfered structure is provided at a connection between the second hole 35 and the third hole 36 .

[0050] In this embodiment, when the front cover plate 2 moves to cover the heat dissipation port 10, the front cover plate 2 is continuously pushed so that the limiting bolt 31 enters the limiting hole 32 from the opening 33, and then moves from the opening 33 to the first hole 34, from the first hole 34 to the second hole 35, and finally moves to the third hole 36, so that the front cover plate 2 is limited to the heat dissipation port 10 and will not continue to move.

[0051] Preferably, the width of the limiting hole 32 is larger than the diameter of the screw rod of the limiting bolt 31 and smaller than the diameter of the screw head of the limiting bolt 31 .

[0052] In this embodiment, the width dimension setting of the limiting hole 32 not only facilitates the bolt of the limiting bolt 31 to smoothly enter the limiting hole 32 , but also helps to prevent the limiting bolt 31 from falling off from the limiting hole 32 .

[0053] See also Figure 5 and Figure 6 Preferably, a clamping hole 100 is provided on the air duct main body 1 at one end of the heat dissipation port 10 away from the limiting bolt 31; the air duct structure also includes a fastener 6 provided on one end of the front cover plate 2 away from the limiting hole 32, and the fastener 6 is used to engage with the clamping hole 100.

[0054] In this embodiment, one end of the front cover plate 2 is fixed by the limiting bolt 31 and the limiting hole 32 , and the other end is fixed by the clamping hole 100 and the clamping member 6 , so that the front cover plate 2 is stably installed at the heat dissipation port 10 .

[0055] See also Figure 6 Preferably, the side of the card hole 100 away from the heat dissipation port 10 passes through the side wall of the air duct body 1, and the upper end of the inner wall of the card hole 100 is provided with a card slot 60; the card fastener 6 includes a card block 61, a connecting rod 62, an operating block 63 and a card spring 64, and the end of the front cover 2 away from the limiting hole 32 is provided with a mounting hole 20, the connecting rod 62 passes through the mounting hole 20 and can move up and down in the mounting hole 20, the card spring 64 is connected between the connecting rod 62 and the inner top wall or the inner bottom wall of the mounting hole 20, the two ends of the connecting rod 62 are respectively connected with the card block 61 and the operating block 63, and the operating block 63 is located outside the front cover 2, and the end of the connecting rod 62 provided with the card block 61 is used to be inserted into the card hole 100, and the card block 61 is used to be inserted into the card slot 60.

[0056] In this embodiment, the front cover plate 2 is pushed to move so that the block 61 is close to the hole 100, and then the operating block 63 is moved downward so that the block 61 and the connecting rod 62 move downward together, and then the front cover plate 2 is further pushed by the operating block 63 so that the block 61 enters the hole 100 and is aligned with the slot 60, and then the external force on the operating block 63 is removed, and the connecting rod 62 moves upward under the action of the restoring force of the buckle spring 64, thereby moving the block 61 into the slot 60, so that the front cover plate 2 is limited to the heat dissipation. No further displacement will occur at the opening 10; when the front cover 2 needs to be removed, the operating block 63 is moved downward, so that the blocking block 61 and the connecting rod 62 move downward together, and then the blocking block 61 withdraws from the card slot 60, and then the front cover 2 is pushed to move along the limiting hole 32 by the operating block 63, so that the limiting bolt 31 withdraws from the limiting hole 32, and the blocking block 61 withdraws from the blocking hole 100, and then the front cover 2 is moved away from the limiting bolt 31 to achieve disassembly, without using other additional tools for disassembly, and the operation is simple and convenient.

[0057] See also Figure 3 Preferably, a heat dissipation mesh 200 is provided on the front cover plate 2 .

[0058] Specifically, the first side plate 11 or the second side plate 12 is also provided with a heat dissipation mesh 200 .

[0059] In this embodiment, the disposition of the heat dissipation mesh 200 is helpful in helping the device to dissipate heat.

[0060] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. An air duct structure, characterized in that: The invention comprises an air duct body (1) and a front cover plate (2); the air duct body (1) comprises a front plate (13), a heat dissipation port (10) is arranged on the front plate (13), and an integrally formed track structure is provided at the heat dissipation port (10), and the track structure comprises a first slide groove (4) and a second slide groove (5) which are arranged opposite to each other. The first slide groove (4) comprises a first side wall (41) and a second side wall (42) arranged opposite to each other; The second slide groove (5) comprises a bending structure and a fourth side wall (54), and at least one bending structure is provided so that a side of the first side wall (41) facing the second side wall (42) and a side of the bending structure facing the fourth side wall (54) are coplanar; The opposite side edges of the front cover plate (2) are respectively slidably inserted into the first sliding groove (4) and the second sliding groove (5).

2. The air duct structure according to claim 1, characterized in that: The first sliding groove (4) further comprises a connecting top wall (43), wherein the connecting top wall (43) is connected between the first side wall (41) and the second side wall (42).

3. The air duct structure according to claim 1, characterized in that: The second slide groove (5) also includes a connecting bottom wall (53), and the bending structure includes a connecting side wall (51) and a third side wall (52), the connecting side wall (51) is bent from bottom to top toward the inside of the air duct body (1), and the third side wall (52) is bent from top to bottom outward from the upper end of the connecting side wall (51), and the connecting bottom wall (53) connects the third side wall (52) and the fourth side wall (54), and the third side wall (52) and the fourth side wall (54) are arranged opposite to each other, and the side of the first side wall (41) facing the second side wall (42) is coplanar with the side of the third side wall (52) facing the fourth side wall (54).

4. The air duct structure according to claim 1, characterized in that: The air duct (1) further comprises a limiting member (3), wherein the limiting member (3) comprises a limiting bolt (31) and a limiting hole (32), wherein the limiting bolt (31) is fixed to the air duct body (1) and is located at the edge of one end of the first slide groove (4) and the second slide groove (5) close to the heat dissipation port (10); the limiting hole (32) is arranged on the front cover plate (2), wherein the limiting hole (32) passes through one side edge of the front cover plate (2) to form an opening (33), and the limiting bolt (31) is used to enter the limiting hole (32) from the opening (33).

5. The air duct structure according to claim 4, characterized in that: The limiting hole (32) comprises a first hole (34), a second hole (35) and a third hole (36); the first hole (34) is connected to the opening (33) and extends in a direction close to the middle of the front cover plate (2); the second hole (35) is connected to the first hole (34) and extends in a direction perpendicular to the first hole (34); the third hole (36) is connected to the second hole (35) and is arranged parallel to the first hole (34); the third hole (36) and the first hole (34) are arranged on the same side of the second hole (35).

6. The air duct structure according to claim 5, characterized in that: The distance between the first slide groove (4) and the second slide groove (5) is greater than the width of the front cover plate (2), so that the front cover plate (2) can move up and down between the first slide groove (4) and the second slide groove (5), so as to achieve the limit bolt (31) being fully inserted into the third hole (36).

7. The air duct structure according to claim 6, characterized in that: A clamping hole (100) is provided on the air duct body (1) at one end of the heat dissipation port (10) away from the limiting bolt (31); The air duct structure further comprises a buckle member (6) provided on an end of the front cover plate (2) away from the limiting hole (32), and the buckle member (6) is used to buckle with the buckle hole (100).

8. The air duct structure according to claim 7, characterized in that: The side of the clamping hole (100) away from the heat dissipation port (10) passes through the side wall of the air duct body (1), and a clamping groove (60) is provided at the upper end of the inner wall of the clamping hole (100).

9. The air duct structure according to claim 8, characterized in that: The buckle (6) comprises a clamping block (61), a connecting rod (62), an operating block (63) and a clamping spring (64); a mounting hole (20) is provided on one end of the front cover (2) away from the limiting hole (32); the connecting rod (62) passes through the mounting hole (20) and can move up and down in the mounting hole (20); the clamping spring (64) is connected between the connecting rod (62) and the inner top wall or the inner bottom wall of the mounting hole (20); the two ends of the connecting rod (62) are respectively connected to the clamping block (61) and the operating block (63), and the operating block (63) is located outside the front cover (2); one end of the connecting rod (62) provided with the clamping block (61) is used to be inserted into the clamping hole (100), and the clamping block (61) is used to be inserted into the clamping slot (60).

10. The air duct structure according to claim 1, characterized in that: The front cover plate (2) is provided with heat dissipation mesh holes (200).

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