Cooling fan
By designing a detachable and connected cold fan waterway assembly, the complex cleaning steps of waterway assembly in the prior art are solved, and a simpler and more efficient cleaning process is achieved.
Patent Information
- Application Number
- CN201911246641.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-12-06
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2039-12-06
AI Technical Summary
The existing cold fan waterway assembly has complicated steps when cleaning, and requires the removal of the wet curtain frame and rear shell, and the cleaning space and load bearing are large, which affects the cleaning effect.
A cold fan is designed, which includes a housing frame, a water distribution box and a water connection box. The water distribution box and a water connection box are removable connections with the housing frame, which simplifies the structure of the water circuit assembly, a water distribution box and a water connection box Can be disassembled and cleaned separately.
The disassembly and assembly steps of waterway components are greatly simplified, the disassembly of the wet curtain frame and rear shell is reduced, the difficulty of cleaning and space requirements are reduced, and the cleaning efficiency is improved.
Smart Images

Figure CN110953665B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of household appliances, and in particular to a cooling fan. Background Art
[0002] The cooling fan generally includes a front shell, a rear shell and a water channel assembly. The existing water channel assembly usually includes a wet curtain, a wet curtain frame, a water diversion structure integrally formed at the upper end of the wet curtain frame, and a water receiving structure located at the lower part of the wet curtain and formed on the rear shell.
[0003] The water circuit components are prone to mold and produce odor and bacteria in humid environments, poor water quality, dust accumulation, etc., and need to be cleaned regularly. The objects to be cleaned mainly include the water distribution structure and water receiving structure mentioned above. When maintenance personnel or consumers clean the water distribution structure and water receiving structure, they find that they need to remove the water distribution structure and water receiving structure from the cold fan first. However, because the water distribution structure is integrally formed on the wet curtain frame, and the wet curtain frame is also provided with a wet curtain, when disassembling the water distribution structure, it is necessary to remove the wet curtain frame from the rear shell first, and even remove the wet curtain from the wet curtain frame, in order to achieve the next step of cleaning the water distribution structure, and the disassembly and assembly steps are complicated. Furthermore, because the water receiving structure is directly formed on the rear shell, the entire rear shell needs to be removed for cleaning. The rear shell is connected to some other structures of the cold fan, and there are many connections, making disassembly and assembly more complicated.
[0004] On the other hand, the water receiving structure and the water distribution structure are generally small in size, while the rear shell and the wet curtain frame are large in size and mass. The above-mentioned integrated design requires consumers to have a larger cleaning space and cleaning load during cleaning, which will also affect the final cleaning effect. Summary of the invention
[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the water channel assembly in the cooling fan in the prior art is inconvenient to clean, thereby providing a cooling fan.
[0006] In order to solve the above problems, the present invention provides a cooling fan, including a shell frame, a water separation box, and a water receiving box, wherein the water separation box, the water receiving box and the shell frame are all detachably connected.
[0007] Furthermore, the shell frame includes a first frame body located at the rear end of the cooling fan and a second frame body connected to the first frame body, and the water separation box and the water receiving box are both arranged on the first frame body or the second frame body.
[0008] Furthermore, an opening is provided at a middle position of the first frame, and the water diversion box is provided at an upper end position of the first frame close to the opening via a first clamping assembly.
[0009] Furthermore, the first clamping assembly includes: a support groove and / or a support edge arranged at the upper end of the opening and located on both sides of the width direction of the opening; and the support edge and / or the support groove correspondingly arranged on the water diversion box.
[0010] Furthermore, the first clamping assembly includes: a first clamping groove and / or a first clamping buckle arranged on the inner side surface of the upper end portion of the opening; and the first clamping buckle and / or the first clamping groove correspondingly arranged on the water diversion box.
[0011] Furthermore, the water receiving box is arranged at a lower end portion of the first frame body close to the opening via a second clamping assembly.
[0012] Furthermore, the second clamping assembly includes: a clamping hook and / or a clamping groove arranged at the end surface where the water receiving box and the first frame are mounted in cooperation; and the clamping groove and / or the clamping hook correspondingly arranged on the first frame.
[0013] Furthermore, the second clamping assembly further includes: a second clamping buckle and / or a second clamping slot provided at the upper end of the water receiving box; and a second clamping slot and / or a second clamping buckle correspondingly provided on the first frame.
[0014] The cooling fan in the present invention further comprises a wet curtain arranged at the opening, a wet curtain buckle is arranged on the wet curtain, and a wet curtain slot is correspondingly arranged on the water separation box.
[0015] The cooling fan in the present invention further comprises a corrugated pipe connected to the water inlet of the water separation box.
[0016] Furthermore, a rib is protrudingly formed at the circumferential edge of the opening, a gap space is formed between a portion of the rib and a side edge of the first frame, and the tube body of the corrugated tube is embedded in the gap space.
[0017] The technical solution of the present invention has the following advantages:
[0018] 1. The cooling fan in the present invention comprises a housing frame, a water separation box and a water receiving box, and the water separation box, the water receiving box and the housing frame are all detachably connected.
[0019] Firstly, the water distribution box and the water receiving box in the present invention can be directly connected to the housing frame, eliminating the wet curtain frame structure in the prior art and simplifying the structural features of the water channel assembly.
[0020] Furthermore, the water separation box and the water receiving box are both detachably connected to the shell frame. When the water separation box and / or the water receiving box need to be cleaned, only the water separation box or the water receiving box can be removed separately for cleaning. Compared with the water circuit assembly in the background technology, the present invention saves the steps of disassembling the wet curtain frame and even the wet curtain, and there is no need to disassemble the rear shell structure of the cooling fan, which greatly simplifies the disassembly and assembly steps of related parts when cleaning the water circuit assembly. In addition, the water separation box and the water receiving box are separate parts, which require less cleaning space and are easy to hold during cleaning, thereby overcoming the problem of inconvenience in cleaning the water circuit assembly.
[0021] 2. In the cooling fan of the present invention, an opening is provided at the middle position of the first frame, and the water diversion box is provided at the upper end position of the first frame near the opening via the first clamping assembly. Furthermore, the first clamping assembly includes: a support groove and / or support edge provided at the upper end of the opening and on both sides of the width direction of the opening; and a support edge and / or support groove correspondingly provided on the water diversion box. The installation method of the support edge and the support groove, on the one hand, realizes the supporting effect on the water diversion box in the length direction of the fuselage, and on the other hand, this installation method can complete the installation of the water diversion box on the first frame by pushing and pulling, which simplifies the disassembly and assembly process of the water diversion box and reduces the difficulty of cleaning the water diversion box.
[0022] 3. The first clamping assembly in the cooling fan of the present invention includes: a first clamping slot and / or a first clamping buckle arranged on the inner side surface of the upper end of the opening; and a first clamping buckle and / or a first clamping slot correspondingly arranged on the water separation box. During the use of the cooling fan, the water in the water tank is pumped into the water separation box through the bellows. After the water separation box is filled with water, it has a certain weight. When the cooling fan moves, under the action of inertia, the water separation box is at risk of falling off from the first frame. Therefore, the first clamping slot and the first clamping buckle are designed to limit the movement of the water separation box in the width direction of the fuselage to ensure the reliability of the installation of the water separation box.
[0023] 4. In the cooling fan of the present invention, the water receiving box is arranged at the lower end position of the first frame body near the opening through the second clamping assembly. Furthermore, the second clamping assembly includes: a clamping hook and / or a hook groove arranged at the end surface where the water receiving box and the first frame body are matched and installed; and a hook groove and / or a clamping hook correspondingly arranged on the first frame body. The matching mode of the clamping hook and the hook groove enables the water receiving box to be hung on the first frame body, and the clamping hook is simply hung on the hook groove, which simplifies the disassembly and assembly of the water receiving box and reduces the difficulty of cleaning the water receiving box.
[0024] 5. The second clamping assembly in the cooling fan of the present invention further includes: a second clamping buckle and / or a second clamping slot arranged at the upper end of the water receiving box; and a second clamping slot and / or a second clamping buckle correspondingly arranged on the first frame. In order to prevent the hook from falling off from the hook slot, the second clamping buckle and the second clamping slot are designed to ensure the stability of the water receiving box installation.
[0025] 6. The circumferential edge of the opening in the cooling fan of the present invention is protruded with a retaining edge, and a gap space is formed between the retaining edge and the side of the first frame, and the tube body of the bellows is embedded in the gap space. The bellows in the prior art are installed in the accommodating space formed by the front shell and the rear shell of the cooling fan, and a wet curtain is arranged at the open part of the accommodating space. The bellows are deeply installed inside the fuselage. When the bellows are aged or fail, it is difficult to replace. In the present invention, the bellows are arranged in the above-mentioned gap space, which is basically equivalent to arranging the bellows on the outer surface of the first frame, which is convenient for users to observe and find the bellows failure, and to maintain and replace the bellows. Furthermore, the bellows are arranged outside the first frame, connected between the water channel assembly and the water tank assembly, and combined with the detachable water distribution box and the water receiving box described above, the convenience of disassembly of the entire cooling fan water circulation system is basically achieved, which promotes the maintenance and replacement of the water circulation system. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0027] Figure 1 It is a schematic diagram of the structure explosion of the cooling fan in the embodiment provided by the present invention;
[0028] Figure 2 A schematic diagram of the structure of a water separation box in an embodiment provided by the present invention;
[0029] Figure 3 A schematic structural diagram of the upper end portion of the first frame body in the embodiment provided by the present invention;
[0030] Figure 4 A schematic diagram of the position of the water outlet of the water receiving box in the embodiment provided by the present invention;
[0031] Figure 5 A schematic diagram of the structure of a water receiving box in an embodiment of the present invention;
[0032] Figure 6 A schematic structural diagram of the position of the first frame corresponding to the water receiving box in the embodiment provided by the present invention;
[0033] Figure 7 A schematic structural diagram of a first clamping assembly in an embodiment of the present invention;
[0034] Figure 8 A schematic structural diagram of a second clamping assembly in an embodiment of the present invention;
[0035] Fig. 9 This is a schematic diagram of the structure of a cooling fan in an embodiment provided by the present invention.
[0036] Description of reference numerals:
[0037] 1-housing frame; 11-first frame body; 12-second frame body; 111-opening; 112-rib;
[0038] 2-water distribution box; 21-water inlet;
[0039] 3-water receiving box; 31-water outlet;
[0040] 4-first clamping assembly; 41-supporting groove; 42-supporting edge; 43-first clamping groove; 44-first buckle;
[0041] 5 - second clamping assembly; 51 - clamping hook; 52 - clamping slot; 53 - second clamping buckle; 54 - second clamping slot;
[0042] 6-Wet curtain;
[0043] 7- bellows;
[0044] 8-Baffle. DETAILED DESCRIPTION
[0045] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0048] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0049] Example
[0050] Figures 1 to 9 As shown, a cooling fan provided by this embodiment includes a shell frame 1, a water separation box 2, and a water receiving box 3. The water separation box 2, the water receiving box 3 and the shell frame 1 are all detachably connected.
[0051] It should be noted that the shell frame 1, water distribution box 2, and water receiving box 3 in this embodiment are all injection molded parts, which are suitable for mass processing of products. Some snap-in structures that need to be explained later can be directly integrally formed using the injection molding process, and the elastic properties of the injection molded material can be used to form elastic snap-in parts with specific structures.
[0052] Of course, in some other embodiments, the detachable connection between the water separation box 2, the water receiving box 3 and the shell frame 1 can also be a screw locking method, or a connection method that combines screw locking with buckles.
[0053] Firstly, the water separation box 2 and the water receiving box 3 in this embodiment can be directly installed on the housing frame 1, eliminating the wet curtain frame structure in the prior art and simplifying the structural features of the water channel assembly.
[0054] Further analysis shows that the water dividing box 2 and the water receiving box 3 are both detachably connected to the shell frame 1. When the water dividing box 2 and / or the water receiving box 3 need to be cleaned, only the water dividing box 2 or the water receiving box 3 can be removed separately for cleaning. Compared with the water circuit assembly in the background technology, this embodiment saves the steps of disassembling the wet curtain frame and even the wet curtain, and there is no need to disassemble the rear shell structure of the cooling fan, which greatly simplifies the disassembly and assembly steps of related parts when cleaning the water circuit assembly. In addition, the water dividing box 2 and the water receiving box 3 are separate parts, which require less cleaning space and are easy to hold during cleaning, thereby overcoming the problem of inconvenience in cleaning the water circuit assembly.
[0055] For the convenience of assembling the cooling fan, the housing frame 1 in this embodiment includes a first frame 11 located at the rear end of the cooling fan and a second frame 12 mounted on the first frame 11. The first frame 11 and the second frame 12 can be fixed by snap connection or screw locking. For the needs of functional design, the water distribution box 2 and the water receiving box 3 are both mounted on the first frame 11.
[0056] Of course, in some other implementations, the water separation box 2 and the water receiving box 3 can also be installed on the second frame 12 .
[0057] The following is a detailed description of how the water separation box 2 and the water receiving box 3 are installed on the first frame 11:
[0058] like Figure 1 In the example given in the figure, an opening 111 is processed at the middle position of the first frame 11, and the opening 111 mainly corresponds to the fan assembly located inside the fuselage. The opening 111 is approximately rectangular and slightly smaller than the wet curtain 6 in size.
[0059] like Fig. 9 As shown, the water distribution box 2 is detachably mounted at the upper end of the first frame 11 near the opening 111 via the first clamping assembly 4. Figure 3 As shown, at the upper end of the opening 111 , the first frame body 11 protrudes to form a truncated cone structure, and the water separation box 2 is installed below the truncated cone.
[0060] like Figure 2 , Figure 3 and Figure 7 The specific structural diagram of the first clamping assembly 4 is shown, so the first clamping assembly 4 includes: a support groove 41 formed at the upper end of the opening 111 and located on both sides of the width direction of the opening 111, and a corresponding support edge 42 formed on the water separation box 2. The support groove 41 is "L"-shaped, similar to the commonly used overlap edge structure. This structure is simple to process, and the above structure realizes the support of the water separation box 2 in the length direction of the fuselage. On the other hand, this installation method can complete the installation of the water separation box 2 on the first frame 11 by pushing and pulling, which simplifies the disassembly and assembly process of the water separation box 2 and reduces the difficulty of cleaning the water separation box 2. During the specific installation, align the support edge 42 with the notch of the support groove 41 and push it in.
[0061] In some other embodiments, the support groove 41 may be provided on the water separation box 2, and the support edge 42 may be formed on the first frame 11, which has similar effects and will not be described in detail.
[0062] In some other embodiments, the above-mentioned support groove 41 and support edge 42 can also be provided on the water separation box 2 or the first frame 11 at the same time, which has similar effects and will not be elaborated in detail.
[0063] During the use of the cooling fan, the water in the water tank is pumped into the water-dividing box 2 through the bellows 6. After the water-dividing box 2 is filled with water, it has a certain weight. When the cooling fan moves, under the action of inertia, the water-dividing box 2 is at risk of falling off from the first frame. Therefore, the first clamping assembly 4 also includes: a first clamping groove 43 formed on the inner side surface of the upper end of the opening 111 and a first clamping buckle 44 correspondingly formed on the water-dividing box 2 to limit the movement of the water-dividing box in the width direction of the fuselage to ensure the reliability of the installation of the water-dividing box 2. Specifically, there are two first clamping buckles 44, which are basically symmetrically formed about the center of the water-dividing box 2 and are approximately U-shaped. When the water-dividing box 2 is pushed in, the first clamping buckle 44 is pushed into the first clamping groove 43.
[0064] In some other embodiments, the first buckle 44 may be formed on the first frame 11, and the first slot 43 may be formed on the water diversion box 2, which have similar effects and will not be elaborated here one by one.
[0065] In some other embodiments, the first frame 11 and the water diversion box 2 may be formed with the first buckle 44 and the first slot 43 at the same time.
[0066] It should be further explained that, in this embodiment, the water collecting box 3 is detachably mounted at the lower end portion of the first frame 11 close to the opening 111 via the second clamping assembly 5 .
[0067] Figure 5 , Figure 6 , Figure 8 The specific structure of the second clamping assembly 5 is described: the second clamping assembly 5 includes: a clamping hook 51 formed at the end surface where the water receiving box 3 and the first frame 11 are matched and installed, and a hook groove 52 correspondingly formed on the first frame 11. The matching mode of the clamping hook 51 and the hook groove 52 enables the water receiving box 3 to be hung on the first frame 11, and the clamping hook 51 is simply hung on the hook groove 52, which simplifies the disassembly and assembly of the water receiving box 3 and reduces the difficulty of cleaning the water receiving box 3.
[0068] In order to prevent the hook 51 from falling off from the hook groove 52, the second clamping assembly 5 in this embodiment also includes a second buckle 53 formed on the upper end of the water receiving box 3, and a corresponding second buckle 54 formed on the first frame 11, and the second buckle 53 is a curved edge structure protruding from the upper end of the water receiving box 3.
[0069] Of course, in some other embodiments, the water receiving box 3 can also be directly fixed to the first frame 11 by screws, and screw locking has a better fixing effect on the water receiving box 3.
[0070] In some other embodiments, the water receiving box 3 can also be fixed by a combination of buckles and screws. For example, the second buckle 53 and the second slot 54 in the present embodiment can be directly replaced with a screw hole structure. The advantage of this design is that it ensures the installation stability of the water receiving box 3 and can also facilitate the disassembly and assembly of the water receiving box 3 to a certain extent.
[0071] The above description provides a specific explanation of how the water separation box 2 and the water receiving box 3 are detachably mounted on the first frame 11 , which ensures that the water separation box 2 and the water receiving box 3 are conveniently cleaned.
[0072] Of course, it also includes a wet curtain 6 installed at the opening 111, a wet curtain buckle is installed on the wet curtain 6, and a wet curtain slot is processed correspondingly on the water distribution box 2. The wet curtain buckle and the wet curtain slot are used together to facilitate the disassembly and assembly of the wet curtain 6. In addition, the lower end of the wet curtain 6 is deep into the water receiving box 3, such as Figure 4 As shown, a flat water receiving surface is provided in the water receiving box 3 corresponding to the wet curtain 6, and a water guide surface inclined toward the water passing hole is connected between the water receiving surface and the water passing hole 31. The water passing hole 31 is a gap sandwiched between the water guide surface and the inner side wall of the water receiving box 3. In this embodiment, a plurality of ribs are also provided at the above gaps to serve as water guide strips.
[0073] The present embodiment further comprises a bellows 7 connected to the water inlet 21 on the water diversion box 2 . Specifically, the bellows 7 is directly sleeved on the water inlet 21 in an interference fit manner to supply water to the water diversion box 2 .
[0074] Furthermore, if Figure 3 As described in the embodiment, the circumferential edge of the opening 111 is protruded with a retaining edge 112, and a gap space is formed between the portion of the retaining edge 112 and the side of the first frame 11, and the tube body of the bellows 7 is embedded in the gap space. The purpose of such implementation is as follows: the bellows 7 in the prior art is installed in the accommodation space formed by the front shell and the rear shell of the cooling fan, and a wet curtain is arranged at the open part of the accommodation space. The bellows is deeply installed inside the fuselage. When the bellows is aged or fails, it is difficult to replace. In this embodiment, the bellows is arranged in the above-mentioned gap space, which is basically equivalent to the bellows 7 being arranged on the outer surface of the first frame 11, which is convenient for users to observe and find that the bellows 7 fails and to maintain and replace the bellows 7. Further, the bellows 7 is arranged outside the first frame 11, connected between the waterway assembly and the water tank assembly, combined with the detachable water distribution box 2 and the water receiving box 3 described above, the convenience of disassembly of the entire cooling fan water circulation system is basically realized, and the maintenance and replacement of the water circulation system is promoted.
[0075] Further, Figure 1The baffle 8 is also shown in the figure. The bellows 7 is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching direction. It is easy to bend and deform. In order to ensure that it is confined in the above-mentioned gap space, a baffle 8 is provided. The baffle 8 is clamped on the top of the bellows 7 to press it into the gap space. A clamping groove structure corresponding to the clamping of the baffle 8 is provided on the first frame 11.
[0076] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.
Claims
1. A cooling fan, comprising a housing frame (1), a water distribution box (2), and a water receiving box (3), characterized in that: The water separation box (2), the water receiving box (3) and the housing frame (1) are all detachably connected; the housing frame (1) comprises a first frame body (11) located at the rear end of the cooling fan; an opening (111) is provided at a middle position of the first frame body (11), and the water separation box (2) is arranged at an upper end position of the first frame body (11) close to the opening (111) via a first clamping assembly (4); The first clamping assembly (4) comprises: a supporting groove (41) and / or a supporting edge (42) arranged at the upper end of the opening (111) and located on both sides of the width direction of the opening (111); and the supporting edge (42) and / or the supporting groove (41) correspondingly arranged on the water separation box (2); and also comprises a first clamping groove (43) and / or a first buckle (44) arranged on the inner side surface of the upper end of the opening (111); and the first buckle (44) and / or the first clamping groove (43) correspondingly arranged on the water separation box (2).
2. The cooling fan according to claim 1, characterized in that: The housing frame (1) comprises a second frame (12) connected to the first frame (11), and the water separation box (2) and the water receiving box (3) are both arranged on the first frame (11) or the second frame (12).
3. The cooling fan according to claim 2, characterized in that: The water receiving box (3) is arranged at a lower end position of the first frame (11) close to the opening (111) via a second clamping assembly (5).
4. The cooling fan according to claim 3, characterized in that: The second clamping assembly (5) comprises: a clamping hook (51) and / or a hook groove (52) arranged at the end surface where the water receiving box (3) and the first frame (11) are mounted in cooperation; And the hook groove (52) and / or the hook (51) are correspondingly arranged on the first frame (11).
5. The cooling fan according to claim 3 or 4, characterized in that: The second clamping assembly (5) further comprises: A second buckle (53) and / or a second clamping groove (54) provided at the upper end of the water receiving box (3); And a second card slot (54) and / or a second card buckle (53) correspondingly arranged on the first frame (11).
6. The cooling fan according to claim 5, characterized in that: It also comprises a wet curtain (6) arranged at the opening (111), the wet curtain (6) being provided with a wet curtain buckle, and the water separation box (2) being correspondingly provided with a wet curtain buckle slot.
7. The cooling fan according to claim 6, characterized in that: It also comprises a bellows (7) connected to the water inlet (21) on the water separation box (2).
8. The cooling fan according to claim 7, characterized in that: A retaining edge (112) is protrudingly formed at the circumferential edge of the opening (111), a gap space is formed between a portion of the retaining edge (112) and the side edge of the first frame (11), and the tube body of the corrugated tube (7) is embedded in the gap space.
Citation Information
Patent Citations
Multi -functional air conditioner fan
CN206905164U
Cooling fan
CN211345661U