Clamping type ventilating fan

Abstract

The utility model relates to the technical field of ventilating fans, and discloses a clamping type ventilating fan which comprises a base and an end cover, one side of the base is provided with a first containing groove, one side of the end cover is provided with a second containing groove corresponding to the first containing groove, a groove opening of the first containing groove and a groove opening of the second containing groove are oppositely arranged, the base is provided with a clamping hole, and the clamping hole is communicated with the first containing groove and the second containing groove. A clamping block is arranged on the end cover; when the end cover covers the base, the clamping block is clamped with the clamping hole; the first containing groove is formed in the base, the second containing groove is formed in the end cover, when the base is covered with the end cover, the first containing groove and the second containing groove are matched to form the installation space, meanwhile, the base is covered with the end cover, and then gapless connection between the end cover and the base is conveniently achieved, so that the waterproof capacity is improved; and external liquid is effectively prevented from entering the mounting space.

Description

Technical Field

[0001] This utility model relates to the field of ventilation fan technology, and in particular to a snap-fit ​​ventilation fan. Background Technology

[0002] An electrical cabinet is a type of cabinet used to protect components and ensure their normal operation. During normal operation, an exhaust fan is often needed to ventilate the air inside the electrical cabinet and balance the temperature difference between the inside and outside of the cabinet, keeping the temperature inside the cabinet within a safe range. In addition, ventilating the electrical cabinet can also extend the service life of the components inside.

[0003] Most existing electrical cabinet ventilation fans consist of a fan body and a fan cover. At the air intake end of the fan body, a filter cotton is clamped in conjunction with the fan cover. By setting the filter cotton, the air entering the electrical cabinet is filtered, thereby preventing foreign objects such as dust, large particles, and water from entering the electrical cabinet through the ventilation fan and damaging the components inside the electrical cabinet.

[0004] Most existing fan covers are hinged to one side of the fan body, and then secured to the fan body with a clip at the other end. This requires corresponding connection structures on the fan body and the fan cover. In addition, in order to achieve the relevant mating structure, there will be a certain gap between the fan cover and the fan body. External liquid can easily seep into the ventilation fan through the gap, causing the ventilation fan to leak and water to enter, which will cause irreversible damage to the ventilation fan and greatly reduce its service life. Therefore, improvements are needed. Utility Model Content

[0005] The main purpose of this invention is to provide a snap-fit ​​ventilation fan, which aims to prevent external liquid from entering the fan through gaps.

[0006] To achieve the above objectives, this utility model proposes a snap-fit ​​ventilation fan, including a base and an end cap. A first receiving groove is provided on one side of the base, and a second receiving groove corresponding to the first receiving groove is provided on one side of the end cap. The openings of the first receiving groove and the second receiving groove are arranged opposite to each other. A snap-fit ​​hole is provided on the base, and a snap-fit ​​block is provided on the end cap. When the end cap is placed on the base, the snap-fit ​​block snaps into the snap-fit ​​hole.

[0007] Specifically, the second receiving groove is larger than the first receiving groove, and an inner assembly plate is provided in the second receiving groove. An assembly space is formed between the outer wall of the inner assembly plate and the inner wall of the second receiving groove. When the end cap is engaged with the base, the edge of the base is located within the assembly space.

[0008] Specifically, the base is provided with snap-fit ​​holes at both the upper and lower ends, and snap-fit ​​blocks are provided on both the upper and lower sides of the assembly space of the second receiving groove. The snap-fit ​​block located on the upper side of the assembly space is located on the inner wall of the second receiving groove, and the snap-fit ​​block located on the lower side of the assembly space is located on the outer wall of the inner assembly plate.

[0009] Specifically, the base is provided with a number of inclined ventilation plates, and the ventilation plates are spaced apart to form ventilation channels.

[0010] Specifically, the air exchange plate includes a blade portion and a baffle portion. The blade portion is inclined and the baffle portion is located at the upper end of the blade portion. The blade portion and the baffle portion are integrally formed.

[0011] Specifically, an air exchange surface is formed on the outer side of the end cap, and several air exchange areas are evenly distributed on the air exchange surface. Several air exchange holes are evenly distributed in each air exchange area, and the air exchange holes are spaced apart from each other.

[0012] Specifically, the ventilation holes are circular, with all holes having the same radius and the same spacing between them.

[0013] Specifically, the base is provided with several fixing holes.

[0014] This utility model provides a first receiving groove on the base and a second receiving groove on the end cap. When the end cap is closed with the base, the first and second receiving grooves cooperate to form an installation space. At the same time, the end cap covers the base, which facilitates a gapless connection between the end cap and the base, thereby improving waterproofing and effectively preventing external liquids from entering the installation space. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is one of the disassembly diagrams of this utility model.

[0017] Figure 3 This is the second schematic diagram showing the disassembly state of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the ventilation plate of this utility model.

[0019] The reference numerals in the attached drawings include: 10, base; 11, first receiving groove; 12, snap-fit ​​hole; 13, ventilation plate; 14, blade part; 15, stop part; 16, fixing hole; 20, end cover; 21, second receiving groove; 22, inner assembly plate; 23, assembly space; 24, snap-fit ​​block; 25, ventilation hole. Detailed Implementation

[0020] 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, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0023] like Figures 1 to 4 As shown, a snap-fit ​​ventilation fan includes a base 10 and an end cap 20. A first receiving groove 11 is provided on one side of the base 10, and a second receiving groove 21 corresponding to the first receiving groove 11 is provided on one side of the end cap 20. The openings of the first receiving groove 11 and the second receiving groove 21 are arranged opposite to each other. A snap-fit ​​hole 12 is provided on the base 10, and a snap-fit ​​block 24 is provided on the end cap 20. When the end cap 20 is placed on the base 10, the snap-fit ​​block 24 snaps into the snap-fit ​​hole 12. When the end cap 20 is closed with the base 10, the snap-fit ​​block 24 and the snap-fit ​​hole 12 cooperate to close the end cap 20 and the base 10. At this time, the base 10 is located in the second receiving groove 21. At the same time, the first receiving groove 11 and the second receiving groove 21 cooperate to form an installation space, which facilitates the installation and placement of the filter cotton. In addition, after the end cap 20 and the base 10 are closed, the end cap 20 provides waterproof protection for the base 10, thereby reducing the gap between the end cap 20 and the base 10 and forming a gapless connection to improve waterproofing and effectively prevent external liquids from entering the installation space.

[0024] The second receiving groove 21 is larger than the first receiving groove 11. An inner assembly plate 22 is provided inside the second receiving groove 21. An assembly space 23 is formed between the outer wall of the inner assembly plate 22 and the inner wall of the second receiving groove 21. When the end cap 20 is engaged with the base 10, the edge of the base 10 is located within the assembly space 23. In this embodiment, an inner assembly plate 22 is provided inside the second receiving groove 21. By providing an inner assembly plate, an assembly space 23 is formed inside the second receiving groove 21, which facilitates assembly of the end cap 20 with the base 10 through the assembly space 23 after the end cap 20 is closed with the base 10.

[0025] Both the upper and lower ends of the base 10 are provided with snap-fit ​​holes 12. Both the upper and lower sides of the assembly space 23 of the second receiving groove 21 are provided with snap-fit ​​blocks 24. The snap-fit ​​block 24 located on the upper side of the assembly space 23 is located on the inner wall of the second receiving groove 21, and the snap-fit ​​block 24 located on the lower side of the assembly space 23 is located on the outer wall of the inner assembly plate 22. In this embodiment, the snap-fit ​​blocks 24 and snap-fit ​​holes 12 cooperate to achieve the assembly of the end cap 20 and the base 10. The length of the snap-fit ​​block 24 located at the lower end is greater than the length of the snap-fit ​​block 24 located at the upper end, thereby improving the stability of the end cap 20 after it is connected to the base 10.

[0026] A plurality of inclined ventilation vanes 13 are provided on the base 10, and the ventilation vanes 13 are spaced apart to form ventilation channels. Each ventilation vane 13 includes a blade portion 14 and a baffle portion. The blade portion 14 is inclined, and the baffle portion is located at the upper end of the blade portion 14. The blade portion 14 and the baffle portion are integrally formed. In this embodiment, by providing ventilation vanes 13 on the base 10, the ventilation efficiency of the base 10 is improved. The ventilation vane 13 includes an inclined blade portion 14 and a baffle portion located at the upper end of the blade portion 14. The inclined blade portion 14 facilitates better airflow guidance, and the baffle portion blocks moisture in the air. When the density of moisture in the air is relatively high, the moisture can condense on the baffle portion. The condensed water droplets slide off through the blade portion 14, thus preventing moisture from entering the fan area and improving the service life of the ventilation fan.

[0027] The outer side of the end cap 20 has a ventilation surface, on which several ventilation areas are evenly distributed. Each ventilation area has several ventilation holes 25 evenly distributed, spaced apart from each other. The ventilation holes 25 are circular, with equal radii and equal spacing. The base 10 has several fixing holes 16. In this embodiment, several ventilation holes 25 are provided on the end cap 20 to improve ventilation and effectively block large dust particles.

[0028] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A snap-fit ​​ventilation fan, comprising a base and an end cap, characterized in that: A first receiving groove is provided on one side of the base, and a second receiving groove corresponding to the first receiving groove is provided on one side of the end cap. The openings of the first receiving groove and the second receiving groove are arranged opposite to each other. A snap-fit ​​hole is provided on the base, and a snap-fit ​​block is provided on the end cap. When the end cap is placed on the base, the snap-fit ​​block snaps into the snap-fit ​​hole.

2. The snap-fit ​​ventilation fan according to claim 1, characterized in that: The second receiving groove is larger than the first receiving groove. An inner assembly plate is provided in the second receiving groove. An assembly space is formed between the outer wall of the inner assembly plate and the inner wall of the second receiving groove. When the end cap is engaged with the base, the edge of the base is located within the assembly space.

3. A snap-fit ​​ventilation fan according to claim 2, characterized in that: The base is provided with snap-fit ​​holes at both the upper and lower ends. The second receiving groove is provided with snap-fit ​​blocks at both the upper and lower sides of the assembly space. The snap-fit ​​block located on the upper side of the assembly space is located on the inner wall of the second receiving groove, and the snap-fit ​​block located on the lower side of the assembly space is located on the outer wall of the inner assembly plate.

4. A snap-fit ​​ventilation fan according to claim 1, characterized in that: The base is provided with several inclined ventilation plates, and the ventilation plates are spaced apart to form ventilation channels.

5. A snap-fit ​​ventilation fan according to claim 4, characterized in that: The ventilation plate includes a blade portion and a baffle portion. The blade portion is inclined and the baffle portion is located at the upper end of the blade portion. The blade portion and the baffle portion are integrally formed.

6. A snap-fit ​​ventilation fan according to claim 1, characterized in that: The outer side of the end cap has a ventilation surface, and several ventilation areas are evenly distributed on the ventilation surface. Several ventilation holes are evenly distributed in each ventilation area, and the ventilation holes are spaced apart from each other.

7. A snap-fit ​​ventilation fan according to claim 6, characterized in that: The ventilation holes are circular, with all holes having the same radius and the same spacing between them.

8. A snap-fit ​​ventilation fan according to claim 1, characterized in that: The base is provided with several fixing holes.

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