Ventilating device

Abstract

The present disclosure provides a ventilation device, comprising: a body provided with an opening; a panel covering the opening; a mounting assembly, the mounting assembly comprising: a clamping structure for clamping connection of the body and the panel, a locking structure provided on the opposite side of the clamping structure for locking the clamping structure, the clamping structure comprising: a connecting portion comprising a first connecting piece protruding from the panel to the side of the body and a second connecting piece protruding from the body to the side of the panel, a fixing portion comprising a first fixing portion protruding from the first connecting piece to the side of the second connecting piece and a second fixing portion protruding from the second connecting piece to the side of the first connecting piece, the second fixing portion being below the first fixing portion, and at least a part of the orthographic projection of the second fixing portion to the first fixing portion overlapping the first fixing portion, and a limiting portion protruding and extending from the connecting portion to the side of the fixing portion on the opposite side, and at least a part of the limiting portion contacting the mating surface of the fixing portion on the opposite side facing the connecting portion.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a ventilation device. Background Technology

[0002] CN215637513U discloses a device for installing a bathroom heater, such as... Figures 1 to 2 As shown, the bathroom heater panel 1 includes a connecting accessory 11, and the main unit 2 includes a mounting component 21. The mounting component 21 includes a mounting port 211, which matches the connecting accessory 11 of the bathroom heater panel 1. The connecting accessory 11 is a multi-layer movable buckle, including a first layer buckle 111 and a second layer buckle 112. Depending on the different mounting carriers, the mounting port 211 engages with different locking positions on the connecting accessory 11.

[0003] For example, such as Figure 3 As shown, when the mounting carrier is an aluminum honeycomb panel 22, the main unit mounting surface 25, with the wires and ducts already connected, is placed on the pre-opened aluminum honeycomb panel 22. The bathroom heater panel 1 is inserted vertically upwards along the opening, and the second layer of the multi-layer movable clips 112 is fixed to the mounting port 211 of the main unit 2. Simultaneously, the flange edge 12 of the bathroom heater panel matches the aluminum honeycomb panel 22, completing the limited installation of the bathroom heater panel 1. For disassembly and maintenance, simply pull the bathroom heater panel 1 downwards to disengage the movable clips, completing the removal of the bathroom heater panel 1.

[0004] like Figure 4 As shown, when the mounting carrier is aluminum ceiling panel 23, the aluminum ceiling panel 23 on the side of the main unit 2 is not installed first. The main unit 2 is placed on the triangular keel flange edge 24, and the bathroom heater panel 1 is snapped in, so that the first layer of buckles 111 is fixed in the mounting port 211 of the main unit 2. At the same time, the bathroom heater panel flange edge 12 matches the aluminum ceiling panel 23, completing the limiting installation of the bathroom heater panel 1. Then, the aluminum ceiling panel 23 on the side is installed. When disassembly and maintenance are required, the bathroom heater panel 1 is removed in the reverse manner.

[0005] However, regardless of whether the first layer of clips 111 or the second layer of clips 112 are fixed to the mounting port 211, since the bathroom heater panel 1 is inserted vertically upwards to connect with the main unit 2, when the connecting accessory 11 contacts the edge of the mounting port 211, the connecting accessory 11 will deform in the opposite direction of the contact point so that the connecting accessory 11 can smoothly cooperate with the mounting port 211, thereby fixing the bathroom heater panel 1 to the main unit 2. However, the deformed connecting accessory 11 will affect its durability, making it possible for it to break, lose strength, or become irrecoverable after deformation, thus causing the bathroom heater panel 1 to fall off, posing a safety risk to the customer during long-term use. Utility Model Content

[0006] In view of the above-mentioned technical problems, this utility model provides a ventilation device that can easily install and disassemble the panel without relying on the deformation of connecting accessories, so as to ensure the durability of the panel and improve safety.

[0007] This utility model provides a ventilation device, comprising: a body with an opening; a panel covering the opening; and a mounting assembly, the mounting assembly comprising: a locking structure for engaging the body with the panel; and a locking structure located on the opposite side of the locking structure for locking the locking structure. The locking structure includes: a connecting portion comprising a first connecting member protruding from the panel toward the body and a second connecting member protruding from the body toward the panel; a fixing portion comprising a first fixing portion protruding from the first connecting member toward the second connecting member and a second fixing portion protruding from the second connecting member toward the first connecting member, the second fixing portion being located below the first fixing portion, and at least a portion of its orthographic projection toward the first fixing portion overlaps with the first fixing portion; and a limiting portion protruding from the connecting portion toward the fixing portion on its opposite side, at least a portion of which contacts the mating surface of the fixing portion on the opposite side of the connecting portion.

[0008] Optionally, the limiting part is disposed above the second fixing part, protruding from the second connector toward the first fixing part, and at least a portion of it contacts the mating surface of the first fixing part toward the second connector.

[0009] Optionally, the engaging structure further includes: a guide portion, comprising a first guide surface formed on the side of the first fixing portion near the second fixing portion and extending protruding from the mating surface toward the first connector, and a second guide surface formed on the side of the second fixing portion near the first fixing portion and extending protruding from the end of the second fixing portion near the first connector toward the second connector.

[0010] Optionally, the engaging structure further includes a sliding portion, comprising a second sliding surface extending from the second guide surface toward the second connector, and a first sliding surface extending from the first guide surface toward the first connector.

[0011] Optionally, the engaging structure further includes: an extension surface, an inclined surface extending from the first sliding surface toward the connection position of the first connector and the first fixing part, wherein the connection position of the extension surface and the first sliding surface is closer to the second connector than the connection position of the second sliding surface and the second guide surface.

[0012] Optionally, the first guide surface, the second guide surface, the first sliding surface, and the second sliding surface are all inclined surfaces that form an angle with the plane where the panel is located. The slope of the second guide surface and the plane where the panel is located is a, and the slope of the second sliding surface and the plane where the panel is located is b, where b is less than a.

[0013] Optionally, the engaging structure further includes a protrusion extending from the second connector toward one side of the first connector and located between the limiting portion and the second fixing portion; the protruding area of ​​the protrusion near the first connector is closer to the first connector than the mating surface of the first fixing portion, and the protruding area is located below the first fixing portion; when the body is engaged with the panel, the vertical distance between the protruding area and the front end of the first sliding surface is greater than or equal to zero.

[0014] Optionally, the engaging structure further includes two insertion surfaces, which are respectively located on both sides of the mating surface; the ventilation device further includes a receiving portion, which is used to receive the engaging structure, and the insertion surfaces are used to guide the first fixing portion into the receiving portion.

[0015] Optionally, the receiving portion includes: two defining surfaces, respectively disposed on both sides of the engaging structure, to define the engaging structure within the receiving portion; and an access surface, extending outwardly at an angle from the defining surfaces in a direction away from the mating surface.

[0016] Optionally, the panel includes a first centerline parallel to the mating surface and a second centerline perpendicular to the mating surface; the two insertion surfaces are inclined surfaces extending outward from both sides of the mating surface in the horizontal direction toward the first centerline of the panel; the limiting surface includes a first limiting surface disposed near the second centerline of the panel and a second limiting surface disposed near the edge of the panel; the access surface is an inclined surface extending from the first limiting surface toward the second centerline of the panel.

[0017] Optionally, the panel includes a first panel and a second panel disposed opposite to the first panel; the body is indirectly engaged with the first panel through the second panel; the first connector is disposed on the side of the first panel facing the second panel, and the second connector is disposed on the side of the second panel facing the first panel.

[0018] Optionally, the first connector is disposed on the panel, and the second connector is disposed on the body.

[0019] As can be seen from the above technical solution, the ventilation device of this utility model has at least the following beneficial effects:

[0020] (1) By setting a locking structure, the limiting part of the locking structure contacts the mating surface of the first fixing part on the second connector, and the locking structure locks the locking structure, so as to fix the panel in the horizontal direction, which can prevent the panel from sinking under its own weight, thereby improving the durability of the panel.

[0021] (2) Since the engaging structure includes a guide part, when the body and the panel are engaged and connected, the first guide surface contacts the second guide surface, and the second guide surface can guide the first fixing part to move towards the limiting part.

[0022] (3) Since the locking structure includes a protrusion, when the body and the panel are locked together, the distance between the protrusion and the front end of the first sliding surface is set so that the locking structure has enough room to move so that the first panel can tilt and move to connect with the second panel. It also ensures that the first panel will not have a large gap between the first panel and the second panel after connection due to gravity. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the main unit of a device for installing a bathroom heater using existing technology.

[0025] Figure 2 A schematic diagram of the panel of a device for installing a bathroom heater using existing technology.

[0026] Figure 3 A schematic diagram of the honeycomb panel installation section of a device for installing a bathroom heater using existing technology.

[0027] Figure 4 A schematic diagram of the aluminum ceiling panel installation section for a bathroom heater installation device based on existing technology.

[0028] Figure 5 This is a cross-sectional view of the ventilation device according to an embodiment of the present invention.

[0029] Figure 6 This is a side view of the engaging structure of another optional embodiment of the present invention.

[0030] Figure 7 This is one of the cross-sectional views of the panel structure in an embodiment of this utility model.

[0031] Figure 8This is an embodiment of the present utility model. Figure 7 An enlarged diagram of A in the diagram.

[0032] Figure 9 This is a side view of the first part of the engaging structure according to an embodiment of the present invention.

[0033] Figure 10 This is a side view of the second part of the engaging structure according to an embodiment of the present invention.

[0034] Figure 11 This is a schematic diagram of the panel structure according to an embodiment of the present utility model.

[0035] Figure 12 This is one of the schematic diagrams of the receiving part structure in other optional embodiments of this utility model.

[0036] Figure 13 This is a second schematic diagram of the receiving part structure in another optional embodiment of this utility model.

[0037] Figure 14 This is a partial schematic diagram of the mounting components and the receiving portion according to an embodiment of the present utility model.

[0038] Figure 15 This is a schematic diagram of the structure of the second panel in an embodiment of the present utility model.

[0039] Figure 16 This is a schematic diagram of the structure of the second panel with a filter screen installed according to an embodiment of the present invention.

[0040] Figure 17 This is a schematic diagram of the structure of the first panel in an embodiment of the present utility model.

[0041] Figure 18 This is a second cross-sectional view of the panel structure according to an embodiment of the present utility model.

[0042] Figure 19 This is an embodiment of the present utility model. Figure 18 An enlarged diagram of C in the diagram.

[0043] Figure 20 This is an embodiment of the present utility model. Figure 18 An enlarged schematic diagram of D in the diagram.

[0044] Figure 21 This is an embodiment of the present utility model. Figure 18 An enlarged diagram of E in the diagram.

[0045] Figure Labels

[0046] 1. Bathroom heater panel; 11. Connecting accessories; 111. First layer of clips; 112. Second layer of clips; 12. Panel flange edge; 2. Main unit; 21. Mounting components; 211. Mounting port; 22. Aluminum honeycomb panel; 23. Aluminum ceiling panel; 24. Triangular keel flange edge; 25. Main unit mounting surface; 3. Body; 4. Panel; 41. First panel; 42. Second panel; 43. Air inlet; 44. Air outlet; 45. 451. Filter screen; 452. First frame edge; 453. Second frame edge; 454. Third frame edge; 455. Fourth frame edge; 456. Protrusion; 467. Filter screen fixing structure; 461. Track; 462. First rib; 463. Second rib; 464. Pressing part; L1. First center line; L2. Second center line; 58. Mounting assembly; 51. Snap-fit ​​structure; 52. Locking structure; 53. Connecting part; 531. 532. First connector; 54. Second connector; 55. Fixing part; 541. First fixing part; 542. Second fixing part; 543. Mating surface; 544. Insertion surface; 545. First insertion surface; 546. Second insertion surface; 547. Contact surface; 548. First contact surface; 549. Second contact surface; 55. Limiting part; 551. First limiting part; 552. Second limiting part; 56. Guide part; 561. First guide surface; 562. Second guide surface; 57. Sliding part; 571. First sliding surface; 572. Second sliding surface; 58. Extension surface; 59. Protrusion; 591. Protruding area; 6. Receiving part; 61. Limiting surface; 611. First limiting surface; 612. Second limiting surface; 62. Access surface; 621. First access surface; 622. Second access surface; 7. Third part; 8. Fourth part. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] In the description of this utility model, it should be noted that the terms "vertical," "horizontal," "left," "right," "upper," "lower," "front," "rear," and similar expressions are for illustrative purposes only and do not represent the only possible embodiments. Furthermore, in the following description, the directional terms "upstream side" and "downstream side" are defined with reference to the direction of air flow within the heat exchange device.

[0049] Furthermore, the use of ordinal numbers such as "first" and "second" in the specification and claims to modify the corresponding elements does not itself imply or represent any ordinal number of the element, nor does it represent the order of one element with another element, or the order of manufacturing methods. The use of these ordinal numbers is only to enable a named element to be clearly distinguished from another element with the same name.

[0050] Furthermore, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] The following is combined Figures 5 to 17 The structure of the ventilation device according to an embodiment of this utility model will be described in detail.

[0052] A ventilation device includes a body 3, a panel 4, and mounting components 5.

[0053] like Figure 5 As shown, the body 3 has an opening. The body 3 includes a frame that forms the outer contour of the ventilation device. The frame is a hollow cuboid box with six faces, including a top face, a bottom face, and four side faces. When the ventilation device is installed, the opening is located on the bottom face. In other optional embodiments, the position of the opening can be set according to actual needs; this invention does not limit the position of the opening. The shape of the frame can also be adapted to the shape of the components housed inside the frame.

[0054] Panel 4 covers the opening of body 3. Body 3 and panel 4 can be engaged and connected via the following engaging structure 51.

[0055] like Figures 5 to 7 As shown, the mounting component 5 includes a snap-fit ​​structure 51 and a locking structure 52.

[0056] The engaging structure 51 is used to engage and connect the body 3 with the panel 4. The engaging connection can be understood as a direct engaging connection or an indirect engaging connection. The engaging structure 51 may include a first part and a second part.

[0057] The so-called direct snap-fit ​​connection means that the first part and the second part of the snap-fit ​​structure 51 are respectively provided on the body 3 and the panel 4, and the body 3 and the panel 4 are directly connected.

[0058] The so-called indirect snap-fit ​​connection means that panel 4 may include a first panel 41 and a second panel 42 disposed opposite to the first panel 41. The first part and the second part of the snap-fit ​​structure 51 are respectively disposed on the first panel 41 and the second panel 42. The first panel 41 is indirectly connected to the body 3 through the second panel 42. That is, the first panel 41 and the second panel 42 are connected by the snap-fit ​​structure 51, and the second panel 42 is connected to the body 3, covering the opening of the body 3. This embodiment of the utility model adopts an indirect snap-fit ​​connection.

[0059] A locking structure 52 is located on the opposite side of the engaging structure 51 and is used to lock the engaging structure 51. The locking structure 52 may have screw holes on the first panel 41 and the second panel 42, through which screws pass to lock the first panel 41 and the second panel 42. The screw tightening direction may be from the first panel 41 toward the second panel 42 (e.g., ...). Figure 7 (as shown in the Y direction), or from the horizontal direction between the first panel 41 and the second panel 42 (e.g. Figure 7 (in the X direction shown). This invention does not limit the implementation of the locking structure 52.

[0060] like Figures 6 to 10 As shown, the engaging structure 51 includes a connecting part 53, a fixing part 54, a limiting part 55, a guiding part 56, a sliding part 57, an extension surface 58, and a protrusion 59.

[0061] The connecting part 53 includes a first connector 531 protruding from the panel 4 toward the body 3 and a second connector 532 protruding from the body 3 toward the panel 4.

[0062] When the body 3 and the panel 4 are directly snapped together, the first connector 531 is provided on the panel 4 and the second connector 532 is provided on the body 3.

[0063] When the body 3 and the panel 4 are indirectly connected by a snap-fit, the first connector 531 is located on the side of the first panel 41 facing the second panel 42, and the second connector 532 is located on the side of the second panel 42 facing the first panel 41.

[0064] The fixing part 54 includes a first fixing part 541 protruding from the first connector 531 toward the second connector 532, and a second fixing part 542 protruding from the second connector 532 toward the first connector 531. The second fixing part 542 is located below the first fixing part 541 and is oriented toward the first fixing part 541 (e.g., ...). Figure 6 or Figure 8 The orthographic projection of the Y-direction shown overlaps at least partly with the first fixing part 541.

[0065] A limiting portion 55 protrudes from the connecting portion 53 toward the fixing portion 54 on the opposite side, and at least a portion of it contacts the mating surface 543 of the fixing portion 54 facing the connecting portion 53. The limiting portion 55 may be located below the first fixing portion 541, protruding from the first connecting member 531 toward the second fixing portion 542, and at least a portion of it contacts the mating surface 543 of the second fixing portion 542 facing the first connecting member 531. Alternatively, the limiting portion 55 may be located below the first fixing portion 541 and above the second fixing portion 542, with the limiting portion 55 located below the first fixing portion 541 defined as the first limiting portion 551, and the limiting portion 55 located above the second fixing portion 542 defined as the second limiting portion 552. The first limiting portion 551 protrudes from the first connecting member 531 toward the second fixing portion 542, and at least a portion of it contacts the mating surface 543 of the second fixing portion 542 facing the first connecting member 531. Figure 6 As shown, the second limiting portion 552 protrudes from the second connecting member 532 toward the first fixing portion 541, and at least a portion therein contacts the mating surface 543 of the first fixing portion 541 facing the second connecting member 532. Figure 8 As shown, in this embodiment, the limiting part 55 is disposed above the second fixing part 542, protruding from the second connector 532 toward the first fixing part 541, and at least a portion of it contacts the mating surface 543 of the first fixing part 541 facing the second connector 532. Specifically, the mating surface 543 of the first fixing part 541 can be a planar structure perpendicular to the panel 4, and the protruding edge of the limiting part 55 is parallel to the mating surface 543. The limiting part 55 is used to limit the movement of the first fixing part 541 toward the second connector 532. The contact between the limiting part 55 and the mating surface 543 of the first fixing part 541, and the engagement of the locking structure 52, allow the first panel 41 and the second panel 42 to be tightly connected in the horizontal direction.

[0066] Guide portion 56, including a side of the first fixing portion 541 near the second fixing portion 542 (e.g. Figure 8 The first guide surface 561, which extends from the mating surface 543 of the first fixing part 541 toward the first connector 531, is located on the lower side of the first fixing part 541, and is formed on the side of the second fixing part 542 near the first fixing part 541 (e.g., the lower side of the first fixing part 541). Figure 8 The upper side of the second fixing part 542 shown), and from the end of the second fixing part 542 near the first connector 531 (as shown) Figure 8The second guide surface 562 extends from the right end of the second fixing part 542 toward the second connector 532. When the body 3 and the panel 4 are engaged, the first guide surface 561 contacts the second guide surface 562, and the second guide surface 562 guides the first fixing part 541 to move toward the limiting part 55. Both the first guide surface 561 and the second guide surface 562 are inclined surfaces that form an angle with the plane of the panel 4.

[0067] The sliding part 57 includes a second sliding surface 572 extending from the second guide surface 562 toward the second connector 532, and a first sliding surface 571 extending from the first guide surface 561 toward the first connector 531. When the body 3 and the panel 4 are engaged, the second guide surface 562 guides the first sliding surface 571 to move toward the second sliding surface 572. Both the first sliding surface 571 and the second sliding surface 572 are inclined surfaces forming an angle with the plane of the panel 4. In order to guide the first panel 41 to slide more smoothly into connection with the second panel 42, the first sliding surface 571 and / or the second sliding surface 572 can also be configured as a multi-segmented inclined surface structure.

[0068] The slope formed by the second guide surface 562 and the direction of the first panel 41 is a, and the slope formed by the second sliding surface 572 and the direction of the first panel 41 is b, where b is less than a.

[0069] The extension surface 58 is an inclined surface extending from the first sliding surface 571 toward the connection position between the first connector 531 and the first fixing part 541. This can be understood as the first sliding surface 571 being inclined toward the first panel 41, and the extension surface 58 being inclined toward the second panel 42. The connection position between the extension surface 58 and the first sliding surface 571 protrudes beyond the direction of the extension surface 58 and the first sliding surface 571 toward the first panel 41, thus creating a recessed area at the connection position between the first fixing part 541 and the first connector 531. This provides movement space when the body 3 and the panel 4 are tilted for engagement. The connection position between the extension surface 58 and the first sliding surface 571 is closer to the second connector 532 than the connection position between the second sliding surface 572 and the second guide surface 562.

[0070] The protrusion 59 extends from the second connector 532 toward one side of the first connector 531 and is located between the limiting part 55 and the second fixing part 542. The protruding area 591 of the protrusion 59 near the first connector 531 is closer to the first connector 531 than the mating surface 543 of the first fixing part 541, and the protruding area 591 is located below the first fixing part 541. When the body 3 and the panel 4 are engaged, the front end of the protruding area 591 and the first sliding surface 571 are vertically aligned (e.g., ...). Figure 8The distance in the Y direction (as shown) is greater than or equal to zero. Here, the front end of the first sliding surface 571 refers to the position where the orthographic projection of the first sliding surface 571 coincides with the orthographic projection of the protrusion 59. In this embodiment, the vertical distance between the protrusion 59 and the front end of the first sliding surface 571 is 0.2 mm to 0.3 mm, ensuring that the engaging structure 51 has sufficient movement space for the first panel 41 to tilt and connect with the second panel 42, while also ensuring that the movement space does not create a large gap between the connected first panel 41 and second panel 42.

[0071] like Figures 7 to 14 As shown, the engaging structure 51 also includes two insertion surfaces 544 and two contact surfaces 547.

[0072] Two insertion surfaces 544 are respectively disposed on both sides of the mating surface 543, for guiding the first fixing part 541 into the receiving part 6. The panel 4 may include a first center line L1 and a second center line L2. The first center line L1 may be parallel to the mating surface 543. The second center line L2 may be perpendicular to the mating surface 543. Specifically, the two insertion surfaces 544 are respectively positioned along the horizontal direction from the mating surface 543 (e.g., ...). Figure 14 The insertion surface 544 and the mating surface 543 are inclined surfaces extending outward from both sides towards the first center line L1 of the panel 4 in the X direction. Viewed from the cross-section of the panel 4, the insertion surface 544 and the mating surface 543 form an equilateral trapezoid without a base. The first insertion surface 545 is located near the second center line L2 of the panel 4, and the second insertion surface 546 is located near the edge of the panel 4.

[0073] Two contact surfaces 547 are planes extending from the two insertion surfaces 544 in a direction away from the mating surface 543. The one located near the second center line L2 of the panel 4 is the first contact surface 548, and the one located near the edge of the panel 4 is the second contact surface 549.

[0074] like Figures 7 to 14 As shown, the ventilation device also includes a receiving part 6 for accommodating the engaging structure 51. The receiving part 6 and the locking structure 52 are respectively located on both sides of the first center line L1 of the panel 4. There can be two receiving parts 6. The two receiving parts 6 are respectively located away from the second center line L2 and are located on both sides of the second center line L2.

[0075] The receiving part 6 includes two defining surfaces 61 and an access surface 62.

[0076] Two limiting surfaces 61 are respectively provided on both sides of the engaging structure 51 to limit the engaging structure 51 within the receiving portion 6. The first limiting surface 611 is provided near the second center line L2 of the panel 4 and faces the first contact surface 548. The second limiting surface 612 is provided near the edge of the panel 4 and faces the second contact surface 549.

[0077] The access surface 62 extends outwardly at an angle from the defining surface 61 in a direction away from the mating surface 543 to guide the insertion surface 544 into the receiving portion 6 along the defining surface 61. The access surface can be one surface or two surfaces. Specifically, as shown... Figure 14 As shown, the access surface 62 can be connected to the first limiting surface 611, and the access surface 62 is an inclined surface extending from the first limiting surface 611 towards the second centerline L2 of the panel 4. In other optional embodiments, such as Figure 13 As shown, the access surface 62 may include a first access surface 621 and a second access surface 622. The first access surface 621 is connected to the first limiting surface 611, and the first access surface 621 is an inclined surface extending from the first limiting surface 611 toward the direction close to the second center line L2 of the panel 4. The second access surface 622 is connected to the second limiting surface 612, and the second access surface 622 is an inclined surface extending from the second limiting surface 612 away from the second center line L2 of the panel 4. Alternatively, as... Figure 12 As shown, the access surface 62 can be connected to the second limiting surface 612, and the access surface 62 is an inclined surface extending from the second limiting surface 612 in a direction away from the second center line L2 of the panel 4. Considering the impact on appearance, in this embodiment, the access surface 62 is connected to the first limiting surface 611 to prevent the user from seeing the protruding structure of the access surface 62 from the side, thus taking into account aesthetics.

[0078] like Figures 15 to 17 As shown, to improve the stability of panel 4, a latching structure can be provided between the engaging structure 51 and the locking structure 52, located at the edge of panel 4. The latching structure can have the same function as the mounting component 21 in the prior art. For example, the latching structure may include a third portion 7 provided on the first panel 41 and a fourth portion 8 provided on the second panel 42. The third portion 7 and the fourth portion 8 can be latched together. The specific implementation of the latching structure is not limited here.

[0079] like Figures 15 to 21 As shown, panel 4 is provided with air inlet 43, air outlet 44, filter screen 45 and filter screen fixing structure 46.

[0080] Air inlet 43 is used to allow airflow to enter the body 3.

[0081] Air outlet 44 is used to allow airflow to be blown out of the body 3.

[0082] A filter screen 45 is used to prevent dust or foreign objects from entering the body 3. The area of ​​the filter screen 45 is equal to or larger than the area of ​​the air inlet 43, so as to cover the air inlet 43. In this embodiment, the air inlet 43 is rectangular, and the filter screen 45 is a rectangular shape slightly larger than the area of ​​the air inlet 43. The filter screen 45 includes a first frame edge 451, a second frame edge 452 opposite to the first frame edge 451, and a third frame edge 453 and a fourth frame edge 454 disposed between the first frame edge 451 and the second frame edge 452, with the third frame edge 453 and the fourth frame edge 454 opposite to each other. The filter screen 45 also includes protrusions 455, which are respectively disposed on the third frame edge 453 and the fourth frame edge 454, and are protruding structures extending from the third frame edge 453 and the fourth frame edge 454 toward the first panel 41.

[0083] The filter fixing structure 46 is used to fix the filter 45 to the upstream side of the air inlet 43. Gas can enter the body 3 from the air inlet 43 of the panel 4, pass through the filter 45, and then be blown out through the air outlet 44.

[0084] In this embodiment, panel 4 includes a first panel 41 and a second panel 42 disposed opposite to the first panel 41, and air inlet 43 is disposed on the second panel 42. When viewed directly (e.g.) Figure 18 (As shown in the Y-direction view) When the first panel 41 is in use, the first panel 41 completely blocks the air inlet 43. Airflow can enter the air inlet 43 through the gap between the first panel 41 and the second panel 42, and the filter 45 can be fixed to the filter fixing structure 46 through the gap between the first panel 41 and the second panel 42.

[0085] The filter screen fixing structure 46 includes a groove 461, a first rib 462, a second rib 463, and a pressing part 464.

[0086] The groove 461 is located on the second panel 42 and is in the shape of a recess to accommodate the second frame edge 452, the third frame edge 453, and the fourth frame edge 454. The filter screen 45 can slide into the air inlet 43 through the groove 461.

[0087] The first rib 462 is provided on the side of the first panel 41 facing the second panel 42, and is located on the edge of the air inlet 43 between the two locking structures 52 described below. The first rib 462 is a rib that extends from the first panel 41 toward the second panel 42, and is used to press the first frame edge 451 of the filter screen 45.

[0088] The second rib 463 is provided on the side of the second panel 42 facing the first panel 41, and is located on the side of the air inlet 43 opposite to the first rib 462. The second rib 463 is a rib that extends from the groove 461 at the third frame edge 453 toward the first rib 462, and is used to support the second frame edge 452 of the filter screen 45.

[0089] The clamping parts 464 are respectively disposed below the grooves 461 at the third frame edge 453 and the fourth frame edge 454. The grooves 461 accommodating the third frame edge 453 and the fourth frame edge 454 have a segmented structure, that is, there are gaps between the segments of the grooves 461. The clamping parts 464 are disposed near the gaps and have an inclined structure extending from the segmented structure towards the first panel 41. When the filter screen 45 is inserted into the filter screen fixing structure 46, the clamping parts 464 contact the protrusions 455.

[0090] By setting the first rib 462, the second rib 463, and the pressing part 464, the filter screen 45 can be fixed flatly at the air inlet 43, preventing deformation during long-term use that could create gaps and affect the sealing and filtering effect, allowing dust to enter the body 3 and thus affecting the user's experience and health.

[0091] The following describes the implementation method of the indirect engagement connection of the ventilation device according to an embodiment of the present invention.

[0092] (1) Panel 4 installation

[0093] The first panel 41 is inserted at an angle toward the second panel 42. At this time, the first guide surface 561 and the second guide surface 562 come into contact. Since both the first guide surface 561 and the second guide surface 562 are inclined surfaces forming an angle with the plane of the panel 4, the first panel 41 moves more smoothly toward the second panel 42 when they come into contact. Under the mutual guidance of the first guide surface 561 and the second guide surface 562, the first guide surface 561 moves toward the protrusion 59 after passing the second sliding surface 572. Then, under the action of the second guide surface 562, the orthographic projection of the first sliding surface 571 gradually coincides with the orthographic projection of the second sliding surface 572. Because the connection point between the extension surface 58 and the first sliding surface 571 is closer to the second connector 532 than the connection point between the second sliding surface 572 and the second guide surface 562, during movement, the connection point between the first sliding surface 571 and the extension surface 58 can pass through the connection point between the second sliding surface 572 and the second guide surface 562, which helps the first panel 41 gradually move from the inclined direction to the horizontal direction. The protrusion 59 gradually approaches the first sliding surface 571, and the distance between the front end of the protrusion 59 and the first sliding surface 571 is 0.2 mm to 0.3 mm, ensuring that the engaging structure 51 has enough room to move so that the first panel 41 can tilt and move to connect with the second panel 42. Furthermore, under the action of gravity, the first panel 41 will move downwards. At this time, the protrusion 59 can support the front end of the first sliding surface 571. The 0.2 mm to 0.3 mm distance also ensures that the movement space will not cause a large gap between the first panel 41 and the second panel 42 after connection.

[0094] Meanwhile, since the receiving part 6 includes an access surface 62, when the first panel 41 is inserted into the second panel 42 at an angle, the first insertion surface 545 contacts the access surface 62. Guided by the access surface 62, the first insertion surface 545 enters the receiving part 6 along the tilt direction of the access surface 62. Since there are two receiving parts 6, the receiving parts 6 and the locking structure 52 are respectively located on both sides of the first center line L1 of the panel 4. The two receiving parts 6 are located away from the second center line L2 and on both sides of the second center line L2. Through the cooperation of the access surface 62 and the first insertion surface 545 on both sides, the first panel 41 tightens towards the second center line L2 when entering the second panel 42, preventing the first panel 41 from moving in a direction other than the second center line L2. By providing the access surface 62 and the first insertion surface 545, the panel 4 can be installed and removed relatively easily. Furthermore, since the inclination direction of the access surface 62 and the first insertion surface 545 is the same, a small gap can be maintained between the access surface 62 and the first insertion surface 545 during movement.

[0095] After the first insertion surface 545 enters the receiving portion 6, the first contact surface 548 faces the first limiting surface 611, and the second contact surface 549 faces the second limiting surface 612. Under the action of the first limiting surface 611 and the second limiting surface 612, the first panel 41 is limited to move left and right in the horizontal direction.

[0096] When the first panel 41 is fully inserted into the second panel 42, the limiting part 55 contacts the mating surface 543 of the first fixing part 541, and is then fixed by the locking structure 52, thus limiting the movement of the first panel 41 in the horizontal direction. By fixing it in the horizontal direction, the panel 4 can be prevented from sinking under its own weight, thereby improving the durability of the panel 4.

[0097] (2) Removal of panel 4

[0098] When disassembly is required, the installation order of panel 4 is reversed (1), which will not be elaborated here. Thus far, the embodiments of this utility model have been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of this utility model.

[0099] It should be noted that implementations not shown or described in the accompanying drawings or the main text of the specification are all forms known to those skilled in the art and are not described in detail. Furthermore, the definitions of the components described above are not limited to the specific structures and shapes mentioned in the embodiments, and those skilled in the art can easily modify or substitute them.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ventilation device, characterized in that include: The body has an opening; Panel, covering the opening; Installation components, the installation components include: A snap-fit ​​structure is used to snap the body and the panel together. A locking structure, located on the opposite side of the engaging structure, is used to lock the engaging structure. The engagement structure includes: The connecting portion includes a first connecting member protruding from the panel toward the body side, and a second connecting member protruding from the body toward the panel side; The fixing part includes a first fixing part protruding from the first connector toward the second connector, and a second fixing part protruding from the second connector toward the first connector. The second fixing part is located below the first fixing part, and its orthographic projection toward the first fixing part overlaps with the first fixing part in at least a portion. The limiting part extends from the connecting part to the fixing part on the opposite side, and at least a portion of it contacts the mating surface of the fixing part on the opposite side facing the connecting part.

2. The ventilation device according to claim 1, characterized in that, The limiting part is located above the second fixing part, protrudes from the second connector toward the first fixing part, and at least a portion of it contacts the mating surface of the first fixing part toward the second connector.

3. The ventilation device according to claim 2, characterized in that The engagement structure further includes: The guide portion includes a first guide surface formed on the side of the first fixing portion near the second fixing portion and extending protruding from the mating surface toward the first connector, and a second guide surface formed on the side of the second fixing portion near the first fixing portion and extending protruding from the end of the second fixing portion near the first connector toward the second connector.

4. The ventilation device according to claim 3, characterized in that The engagement structure further includes: The sliding part includes a first sliding surface extending from the first guide surface toward the first connector, and a second sliding surface extending from the second guide surface toward the second connector.

5. The ventilation device according to claim 4, characterized in that The engagement structure further includes: An extension surface is an inclined surface that extends from the first sliding surface toward the connection position between the first connector and the first fixing part; The connection position between the extended surface and the first sliding surface is closer to the second connector than the connection position between the second sliding surface and the second guide surface.

6. The ventilation device of claim 4, wherein, The first guide surface, the second guide surface, the first sliding surface, and the second sliding surface are all inclined surfaces that form an angle with the plane where the panel is located; The slope of the second guide surface and the plane containing the panel is a; The slope of the second sliding surface and the plane containing the panel is b; b is less than a.

7. The ventilation device according to claim 4, characterized in that, The engagement structure further includes: A protrusion extends from the second connector toward one side of the first connector and is located between the limiting portion and the second fixing portion; The protruding area of ​​the protrusion near the first connector is closer to the first connector than the mating surface of the first fixing part, and the protruding area is located below the first fixing part. When the body is engaged with the panel, the vertical distance between the protruding area and the front end of the first sliding surface is greater than or equal to zero.

8. The ventilation device according to claim 1, characterized in that, The engaging structure further includes two insertion surfaces, which are respectively located on both sides of the mating surface; The ventilation device further includes a receiving portion for accommodating the engaging structure; The insertion surface is used to guide the first fixing part into the receiving part.

9. The ventilation device according to claim 8, characterized in that, The receiving portion includes: Two limiting surfaces are respectively provided on both sides of the engaging structure to limit the engaging structure within the receiving portion; The access surface extends outward at an angle from the defining surface in a direction away from the mating surface.

10. The ventilation device of claim 9, wherein, The panel includes a first center line parallel to the mating surface and a second center line perpendicular to the mating surface; The two insertion surfaces are inclined surfaces that extend outward from both sides of the horizontal direction of the mating surface toward the first center line of the panel; The defining surface includes a first defining surface located near the second center line of the panel, and a second defining surface located near the edge of the panel; The access surface is an inclined surface extending from the first limiting surface toward the second center line of the panel.

11. The ventilation device according to any one of claims 1 to 10, characterized in that The panel includes a first panel and a second panel disposed opposite to the first panel; The body and the first panel are indirectly connected by a second panel; The first connector is disposed on the side of the first panel facing the second panel, and the second connector is disposed on the side of the second panel facing the first panel.

12. The ventilation device according to any one of claims 1 to 10, characterized in that, The first connector is located on the panel, and the second connector is located on the body.

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