Ventilating fan with externally-hung filter screen and motor home with ventilating fan

Abstract

The utility model belongs to the technical field of air exchange fans, and particularly relates to an air exchange fan with an externally-hung filter screen, which comprises a filter element, a mesh enclosure, an air exchange fan outer frame and a quick connection structure, and the filter element is arranged in the mesh enclosure; a ventilation opening is formed in the ventilation fan outer frame in a penetrating mode. The quick connection structure comprises a hook and an elastic piece, the hook is arranged on the mesh enclosure in a sliding mode, a flange is arranged on the ventilation opening in the circumferential direction of the ventilation opening, the hook can hook the flange when sliding outwards, the hook keeps the state of hooking the flange under the action of the elastic piece, and at the moment, the mesh enclosure covers the ventilation opening. And the ventilation opening is communicated with the outside after sequentially passing through the filter element and the mesh enclosure. The ventilating fan with the externally-hung filter screen is simple and reliable in structure, ingenious in design and quite convenient to assemble and disassemble, daily maintenance of the ventilating fan is facilitated, and user experience is greatly improved; according to the ventilator with the externally-hung filter screen, the filter element is adopted to replace an existing filter screen, the filtering effect is effectively optimized, and the user experience is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation fans, and in particular relates to a ventilation fan with an external filter and a motorhome with the ventilation fan. Background Art

[0002] With the rapid development of the automobile industry, the performance and ease of use of the vehicle sunroof, as an important device to improve the air quality in the car, are increasingly valued, especially the sunroof of RVs, where users have higher requirements for its performance. The ventilation fan is an important component of the sunroof. For example, existing patent applications 202310456546.7, 202310882389.6 and 202320560899.7 all disclose vehicle sunroofs with ventilation fans, and a filter assembly is provided at the air outlet of the ventilation fan. The existing filter assembly has the following defects: the filter assembly is complicated and cumbersome to disassemble and assemble, which not only affects the user experience, but also may reduce the frequency of filter replacement, thereby affecting the air quality in the car; the filter has poor filtering effect, and the degree of air purification is limited, which reduces the user experience. Utility Model Content

[0003] In order to solve the problems in the prior art that the filter screen of the ventilation fan is complicated and cumbersome to disassemble and assemble, as well as the poor filtering effect, the utility model provides a ventilation fan with an external filter screen and a motorhome with the ventilation fan.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a ventilation fan with an external filter, comprising:

[0005] Filter element;

[0006] A mesh cover, wherein the filter element is arranged in the mesh cover;

[0007] A ventilation fan outer frame, wherein the ventilation fan outer frame is penetrated with a ventilating hole;

[0008] And a quick-connect structure, the quick-connect structure includes a hook and an elastic member, the hook is slidably arranged on the mesh cover, the vent is provided with a flange along its circumference, the hook can hook the flange when sliding outward, the hook keeps hooking the flange under the action of the elastic member, at this time the mesh cover covers the vent, and the vent is connected to the outside world after passing through the filter element and the mesh cover in turn.

[0009] Preferably, the hook comprises a main body, a connecting part and a barb part which are bent in sequence, the main body is slidably arranged on the mesh cover, and when the hook slides outward, the barb part hooks the flange. The hook is an integral type, which is formed by injection molding, has a simple and reliable structure and low cost.

[0010] Furthermore, the elastic member acts on the main body, which facilitates the arrangement of the elastic member and provides a reliable and stable elastic effect.

[0011] Furthermore, the elastic member is an elastic steel wire, the elastic steel wire is bent into an arc shape to pull the connection part outward, and both ends of the elastic steel wire are limited by limit screws. The elastic member has a simple and reliable structure, stable elastic effect, and low cost.

[0012] Furthermore, the quick connection structure further comprises a limit plate, the limit plate is arranged on the mesh cover, a slideway is formed between the limit plate and the mesh cover, and the main body is slidably arranged in the slideway. The limit plate is easy to load and unload, has a simple and reliable structure, and has a low cost.

[0013] Furthermore, one end of the main body away from the connecting portion extends out of a mesh cover, and an end portion of the main body is provided with anti-slip patterns.

[0014] Preferably, the quick-connect structure is provided with two groups, and the two groups of quick-connect structures are respectively provided on both sides of the mesh cover. When the hooks of the two groups of quick-connect structures are pushed inward at the same time, the two groups of hooks move away from the flange at the same time, thereby unlocking the quick-connect structure; when the hooks are released, the two groups of hooks slide outwards respectively under the action of their elastic members until they hook the flange, thereby locking the quick-connect structure. The unlocking and locking operations are very convenient, and the locking is safe and reliable.

[0015] Preferably, a groove is provided in the mesh cover, and the filter element is stuck in the groove. The filter element is used to replace the existing filter screen, which effectively optimizes the filtering effect and improves the user experience.

[0016] Furthermore, a mesh side air outlet is provided on the side of the outer frame of the ventilation fan to increase the ventilation volume and expand the blowing range.

[0017] A motorhome with a ventilation fan comprises any one of the above-mentioned ventilation fans with an external filter, wherein an outer frame of the ventilation fan is mounted on a roof of the motorhome.

[0018] Beneficial effects: When installing the ventilation fan with an external filter screen of the utility model: first press the main body parts on both sides inwards to overcome the elastic force of the elastic steel wire until the hook slides inwards and maintains the state of pressing the main body part, then cover the vent with the mesh cover, and the hook is opposite to the flange, and then release the main body part. At this time, the hooks on both sides slide outwards under the action of the elastic steel wire until the hook hooks the flange, and the hooks remain hooked on the flange under the action of the elastic member, completing the installation of the ventilation fan with an external filter screen; Disassembly: First press the main body parts on both sides inwards to overcome the elastic force of the elastic steel wire until the hooks are hooked on the flange, and then release the main body part. The elastic force of the steel wire is applied until the hook slides inward and disengages from the flange, and the main body is kept pressed down until the mesh cover is removed from the outer frame of the ventilation fan, and then the main body is released. At this time, the hooks on both sides slide outward and reset under the action of the elastic steel wire, completing the removal of the external filter. The ventilation fan with an external filter has a simple and reliable structure and a clever design. The loading and unloading operations are very convenient, which facilitates the daily maintenance of the ventilation fan and greatly improves the user experience. The ventilation fan with an external filter adopts a filter element to replace the existing filter, which effectively optimizes the filtering effect and further improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the ventilating fan with an external filter screen of the utility model;

[0021] Figure 2 yes Figure 1 Explosion diagram of

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the ventilation fan with an external filter screen of the utility model from another angle;

[0023] Figure 4 yes Figure 3 Explosion diagram of

[0024] Figure 5 yes Figure 4 A is a partial enlarged schematic diagram;

[0025] In the figure: 1, filter element, 2, mesh cover, 21, groove, 3, ventilation fan frame, 31, vent, 32, flange, 33, side air outlet, 4, quick-connect structure, 41, hook, 411, main body, 412, connecting part, 413, barb part, 414, anti-slip pattern, 42, elastic steel wire, 43, limit screw, 44, limit plate, 45, mounting screw. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] like Figures 1 to 5 As shown, a ventilation fan with an external filter screen comprises a filter element 1, a mesh cover 2, a ventilation fan outer frame 3 and a quick-connect structure 4, wherein the filter element 1 is arranged in the mesh cover 2; a ventilating hole 31 is penetrated on the ventilation fan outer frame 3; the quick-connect structure 4 comprises a hook 41 and an elastic member, wherein the hook 41 is slidably arranged on the mesh cover 2, and the ventilating hole 31 is provided with a flange 32 along its circumference, and the hook 41 can hook the flange 32 when sliding outward, and the hook 41 keeps hooking the flange 32 under the action of the elastic member, at which time the mesh cover 2 covers the ventilating hole 31, and the ventilating hole 31 is connected to the outside world after passing through the filter element 1 and the mesh cover 2 in sequence.

[0029] Specifically, in this embodiment, the quick-connect structure 4 is provided with two groups, and the two groups of quick-connect structures 4 are respectively provided on both sides of the net cover 2. When the hooks 41 of the two groups of quick-connect structures 4 are pushed inward at the same time, the two groups of hooks 41 move away from the flange 32 at the same time, thereby unlocking the quick-connect structure 4; when the hooks 41 are released, the two groups of hooks 41 slide outward under the action of their elastic members until they hook the flange 32, thereby locking the quick-connect structure 4. The unlocking and locking operations are very convenient, and the locking is safe and reliable.

[0030] Specifically, in this embodiment, the hook 41 is an integrated type, and is formed by injection molding. The hook 41 includes a main body 411, a connecting portion 412, and a barb 413 that are bent in sequence. The main body 411 is slidably arranged on the mesh cover 2. When the hook 41 slides outward, the barb 413 hooks the flange 32. The elastic member acts on the main body 411. Specifically, in this embodiment, the elastic member is an elastic steel wire 42. The elastic steel wire 42 is bent into an arc to pull the connecting portion 412 outward. Both ends of the elastic steel wire 42 are limited by limit screws 43.

[0031] Specifically, in this embodiment, the quick-connect structure 4 further includes a limit plate 44, which is arranged on the mesh cover 2 by means of mounting screws 45, and a slideway is formed between the limit plate 44 and the mesh cover 2, and the main body 411 is slidably arranged in the slideway. Further, in this embodiment, one end of the main body 411 away from the connecting portion 412 extends out of the mesh cover 2, and an anti-slip pattern 414 is arranged at the end of the main body 411.

[0032] Specifically, in this embodiment, a groove 21 is provided in the mesh cover 2, and the filter element 1 is stuck in the groove 21. This embodiment uses the filter element 1 to replace the existing filter screen, which effectively optimizes the filtering effect and improves the user experience.

[0033] Specifically, in this embodiment, a mesh-shaped side air outlet 33 is provided on the side of the ventilation fan outer frame 3 to increase the ventilation volume and expand the blowing range.

[0034] A motorhome with a ventilation fan comprises the ventilation fan with an external filter as described in this embodiment, wherein the ventilation fan outer frame 3 is installed on the roof of the motorhome.

[0035] The installation process of the ventilation fan with external filter is as follows:

[0036] First, press the main body 411 on both sides inward to overcome the elastic force of the elastic steel wire 42 until the hook 41 slides inward and maintains the state of pressing the main body 411, then cover the vent 31 with the mesh cover 2, with the hook 41 facing the flange 32, and then release the main body 411. At this time, the hooks 41 on both sides slide outward under the action of the elastic steel wire 42 until the hook 41 hooks the flange 32. The hook 41 remains hooked on the flange 32 under the action of the elastic member, and the installation of the ventilation fan with an external filter is completed.

[0037] The disassembly process of the ventilation fan with external filter is as follows:

[0038] First, press the main body 411 on both sides inward to overcome the elastic force of the elastic steel wire 42 until the hook 41 slides inward and disengages from the flange 32, and maintain the state of pressing the main body 411 until the mesh cover 2 is removed from the ventilation fan outer frame 3, and then release the main body 411. At this time, the hooks 41 on both sides slide outward and reset under the action of the elastic steel wire 42, completing the removal of the external filter.

[0039] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A ventilating fan with an external filter, characterized in that: include: Filter element (1); A mesh cover (2), wherein the filter element (1) is arranged inside the mesh cover (2); A ventilation fan outer frame (3), wherein a ventilation hole (31) is penetrated through the ventilation fan outer frame (3); and a quick-connect structure (4), the quick-connect structure (4) comprising a hook (41) and an elastic member, the hook (41) being slidably arranged on the mesh cover (2), the vent (31) being provided with a flange (32) along its circumference, the hook (41) being able to hook the flange (32) when sliding outwards, the hook (41) being able to keep hooking the flange (32) under the action of the elastic member, at which time the mesh cover (2) covers the vent (31), and the vent (31) is connected to the outside world after passing through the filter element (1) and the mesh cover (2) in sequence.

2. The ventilating fan with an external filter according to claim 1, characterized in that: The hook (41) comprises a main body (411), a connecting part (412) and a barb part (413) which are bent in sequence. The main body (411) is slidably arranged on the mesh cover (2). When the hook (41) slides outward, the barb part (413) hooks the flange (32).

3. The ventilating fan with an external filter according to claim 2, characterized in that: The elastic member acts on the main body (411).

4. The ventilating fan with an external filter according to claim 3, characterized in that: The elastic member is an elastic steel wire (42), the elastic steel wire (42) is bent into an arc shape to pull the connecting portion (412) outwards, and both ends of the elastic steel wire (42) are limited by limit screws (43).

5. The ventilating fan with an external filter according to claim 2, characterized in that: The quick-connect structure (4) further comprises a limiting plate (44), wherein the limiting plate (44) is arranged on the mesh cover (2), a slideway is formed between the limiting plate (44) and the mesh cover (2), and the main body (411) is slidably arranged in the slideway.

6. The ventilating fan with an external filter according to claim 5, characterized in that: One end of the main body (411) away from the connecting portion (412) extends out of the mesh cover (2), and an end of the main body (411) is provided with an anti-slip pattern (414).

7. The ventilating fan with an external filter according to any one of claims 1 to 6, characterized in that: The quick-connect structures (4) are provided in two groups, and the two groups of quick-connect structures (4) are respectively provided on both sides of the mesh cover (2).

8. The ventilating fan with an external filter according to any one of claims 1 to 6, characterized in that: A groove (21) is provided in the mesh cover (2), and the filter element (1) is stuck in the groove (21).

9. The ventilating fan with an external filter according to claim 8, characterized in that: A mesh-shaped side air outlet (33) is provided on the side of the ventilation fan outer frame (3).

10. A motorhome with a ventilation fan, characterized in that: It comprises a ventilation fan with an external filter as described in any one of claims 1 to 9, wherein the ventilation fan outer frame (3) is installed on the roof of a motorhome.

Images