Fan panel clips

Abstract

The present application relates to a fan panel clip, the fan panel clip comprises a clip and a clip groove, the clip is shaped like a gear, the clip comprises an arc-shaped gear tooth, the arc-shaped gear tooth comprises a tooth root and a tooth tip, the opening of the clip groove is larger than the size of the tooth root, so that the arc-shaped gear tooth can be accommodated in the clip groove, a ramp block is provided on the groove wall facing the outer arc surface in the clip groove, the cross-section of the ramp block gradually increases along the groove bottom direction of the clip groove, the buckling end of the clip is an arc-shaped gear tooth, when the arc-shaped gear tooth of the clip is buckled into the clip groove along the motion trajectory of the arc line, one end of the tooth tip of the arc-shaped gear tooth first passes through the cavity between the ramp block and the groove wall, as the arc-shaped gear tooth goes deeper, the outer arc surface of the arc-shaped gear tooth (the part close to the tooth root) gradually forms abutment with the ramp block (gradually increasing along the groove bottom direction of the clip groove), and the deadweight of the panel forms a stable buckling connection between the clip and the clip groove.

Description

Technical Field

[0001] The present application relates to the field of electrical equipment technology, and in particular to a fan panel clip. Background Art

[0002] With the improvement of living standards, people have higher and higher requirements for the quality of air in their lives. Fresh air fans have gradually appeared in the public eye. With the popularization of fresh air fans, people not only require better purification functions for household wall-mounted fresh air fans, but also require the external structure of the fresh air fans to be beautiful, and to be able to easily replace the filter and repair the whole machine. For most fresh air fans on the market, the installation of their external panels is to form a limiting relationship between the buckle and the buckle groove on the back of the panel. The buckle needs to be pulled out of the buckle groove during assembly and disassembly. This method of fixing by squeezing the buckle and the buckle groove is not convenient for people to overhaul the whole machine and replace parts such as the filter. If the number of assembly and disassembly is too many, this buckle is prone to failure, affecting the service life of the panel.

[0003] Therefore, it is necessary to design a fan panel clip that does not require extrusion between the clip and the clip groove, and can be tightly assembled and easily disassembled through the structure of the fan panel clip itself. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present application provides a fan panel clip, which does not require extrusion fit between the clip and the clip groove, and can be tightly assembled and easily disassembled through the structure of the fan panel clip itself.

[0005] In a first aspect, the present application provides a fan panel buckle, comprising a buckle and a buckle slot, wherein the buckle is arranged on a fan panel housing; the buckle slot is arranged on a fan host housing;

[0006] The buckle includes arc-shaped gear teeth;

[0007] The arc-shaped gear teeth include a tooth root and a tooth tip;

[0008] An outer arc surface and an inner side surface are formed between the tooth root and the tooth tip;

[0009] The opening of the buckle groove is larger than the size of the tooth root, and a slope block is provided on the groove wall of the buckle groove facing the outer arc surface, and the cross section of the slope block gradually increases along the groove bottom direction of the buckle groove;

[0010] When the arc-shaped gear teeth of the buckle are buckled into the buckle groove, part of the outer arc surface abuts against the inclined surface block.

[0011] In one embodiment, the outer arc surface presents a first tooth profile line in the cross section of the arc-shaped gear tooth, and the first tooth profile line includes an abutment section and a tooth tip section;

[0012] The length ratio of the abutment section to the tooth tip section ranges from 2 / 3 to 3 / 2.

[0013] In one embodiment, the abutment segment is a straight line, and the tooth tip segment is an arc line.

[0014] In one embodiment, the inner side surface includes a supporting surface, a connecting surface and a guiding surface; the supporting surface and the guiding surface are arranged at two ends of the connecting surface, and the supporting surface is connected to the tooth root.

[0015] In one embodiment, the angle between the support surface and the tooth root surface is less than or equal to 95 degrees; the connection angle between the support surface and the connecting surface is greater than or equal to 200 degrees, the connection angle between the connecting surface and the guide surface is less than or equal to 120 degrees, and the tooth root surface is the surface of the arc-shaped gear tooth and the fan panel.

[0016] In one embodiment, the inner side surface presents a second tooth profile line in the cross section of the arc-shaped gear tooth, and the second tooth profile line includes a supporting section, a connecting section and a guiding section;

[0017] The support surface corresponds to a support segment, and the length of the support segment is less than or equal to 4 mm.

[0018] In one embodiment, the connecting surface corresponds to a connecting segment, and the length of the connecting segment is less than or equal to 7 mm.

[0019] In one embodiment, the guide surface corresponds to a guide segment, and the length of the guide segment is less than or equal to 4 mm.

[0020] In one embodiment, the distance from the tooth tip to the tooth root is smaller than the depth of the buckle groove.

[0021] In one embodiment, a hanging platform groove is arranged at the top of the buckle groove, and the buckle is provided with a hanging platform matching the hanging platform groove, and the hanging platform groove hangs the buckle.

[0022] The technical solution provided by the present application may include the following beneficial effects: the fan panel clip includes a clip and a clip groove, the clip is gear-shaped, the clip includes arc-shaped gear teeth, and the arc-shaped gear teeth include tooth roots and tooth tips.

[0023] The opening of the snap groove is larger than the size of the tooth root, so that the arc-shaped gear teeth can be accommodated in the snap groove. A bevel block is provided on the groove wall of the snap groove facing the outer arc surface. The cross-section of the bevel block gradually increases along the bottom direction of the snap groove, and the bevel block can form abutment with the arc-shaped gear.

[0024] The buckling end of the buckle in this scheme is an arc-shaped gear tooth. When the arc-shaped gear tooth of the buckle is buckled into the buckle groove along the arc trajectory, one end of the tooth tip of the arc-shaped gear tooth first passes through the cavity between the inclined block and the groove wall. As the arc-shaped gear tooth goes deeper, the outer arc surface of the arc-shaped gear tooth (the part close to the tooth root) gradually abuts against the inclined block (gradually increasing along the bottom direction of the buckle groove), and the deadweight of the panel forms a stable buckle connection between the buckle and the buckle groove.

[0025] The outer arc surface abuts against the inclined surface block to generate abutment stress, so that the buckle can be tightly assembled with the buckle groove. In addition, through the abutment method, there is no pressing and locking situation, and the buckle can be directly taken out of the buckle groove during disassembly.

[0026] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0028] Figure 1 It is a schematic diagram of the buckle and buckle groove buckling structure of the fan panel buckle shown in the embodiment of the present application;

[0029] Figure 2 Schematic diagram of the buckle groove structure of the fan panel buckle shown in the embodiment of the present application;

[0030] Figure 3 Schematic diagram of the buckle-fastening movement direction of the fan panel buckle shown in the embodiment of the present application;

[0031] Figure 4 It is a schematic diagram of the installation structure of the fan panel and the fan host housing shown in the embodiment of the present application;

[0032] Figure 5 is a structural diagram of a fan panel shown in an embodiment of the present application;

[0033] Figure 6 is a buckle cross-sectional view of a fan panel buckle shown in an embodiment of the present application;

[0034] Figure 7 is an enlarged view of a fan panel fastener of a fan panel and a fan host housing mounting structure shown in an embodiment of the present application;

[0035] Figure 8 It is another enlarged view of the fan panel clip of the fan panel and fan host housing mounting structure shown in the embodiment of the present application. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0037] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0038] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0039] Embodiment 1

[0040] With the improvement of living standards, people have higher and higher requirements for the quality of air in their lives. Fresh air fans have gradually appeared in the public eye. With the popularization of fresh air fans, people not only require better purification functions for household wall-mounted fresh air fans, but also require the external structure of the fresh air fans to be beautiful, and to be able to easily replace the filter and repair the whole machine. For most fresh air fans on the market, the installation of their external panels is to form a limiting relationship between the buckle and the buckle groove on the back of the panel. The buckle needs to be pulled out of the buckle groove during assembly and disassembly. This method of fixing by squeezing the buckle and the buckle groove is not convenient for people to overhaul the whole machine and replace parts such as the filter. If the number of assembly and disassembly is too many, this buckle is prone to failure, affecting the service life of the panel.

[0041] Therefore, it is necessary to design a buckle that does not require extrusion between the buckle and the buckle groove, but can be tightly assembled and easily disassembled through the structure of the buckle itself.

[0042] In view of the above problems, an embodiment of the present application provides a fan panel fastener, which can be tightly assembled and easily disassembled through the structure of the fan panel fastener itself.

[0043] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0044] Figure 1 It is a schematic diagram of the buckle and buckle groove buckling structure of the fan panel buckle shown in the embodiment of the present application;

[0045] Figure 2 Schematic diagram of the buckle groove structure of the fan panel buckle shown in the embodiment of the present application;

[0046] Figure 3 Schematic diagram of the buckle-fastening movement direction of the fan panel buckle shown in the embodiment of the present application;

[0047] Figure 4 It is a schematic diagram of the installation structure of the fan panel and the fan host housing shown in the embodiment of the present application;

[0048] Figure 5 is a structural diagram of a fan panel shown in an embodiment of the present application;

[0049] Figure 7 It is an enlarged view of the fan panel clips of the fan panel and fan host housing mounting structure shown in the embodiment of the present application.

[0050] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 .

[0051] The fan panel buckle of the embodiment of the present application includes a buckle 1 and a buckle slot 2; the buckle 1 is arranged on the fan panel housing, and the buckle slot 2 is arranged on the fan host housing.

[0052] The buckle 1 includes an arcuate gear tooth, which includes a tooth root 12 and a tooth tip 11. The buckle 1 of the present application is similar to a traditional gear structure, so the structure of the arcuate gear includes a tooth tip 11 and a tooth root 12. The arcuate gear tooth is the part of the buckle 1 that buckles into the buckle groove 2. The size of the arcuate gear tooth is smaller than the buckle groove 2, so that the arcuate gear tooth can be accommodated in the buckle groove 2 as a whole.

[0053] The present application does not restrict the shape and specific size of the snap groove 2. The design standard is that the arc-shaped gear teeth that can accommodate the snap 1 are used. The size of the snap groove 2 is larger than the size of the arc-shaped gear. In addition to meeting this size requirement, the specific size of the snap groove 2 should be set according to the actual production application.

[0054] The buckle 1 is arranged on the fan panel housing. Such a structural arrangement enables the opening of the buckle groove 2 to interact with the fan panel housing, preventing the entire fan panel buckle from falling into the buckle groove 2, and playing a role in stabilizing the buckle 1. The opening of the buckle groove 2 is larger than the size of the tooth root 12, so that the arc-shaped gear teeth can be accommodated in the buckle groove 2.

[0055] A slope block 21 is provided on the groove wall of the buckle groove 2 facing the outer arc surface 111. The cross section of the slope block 21 gradually increases along the groove bottom direction of the buckle groove 2. The slope block 21 is inclined toward the groove bottom of the buckle groove 2. Figure 2 As shown, the cross section of the ramp block 21 changes from narrow to wide from the top to the bottom of the buckle slot 2 .

[0056] An outer arc surface 111 and an inner side surface 112 are formed between the tooth root 12 and the tooth tip 11; the functions of the outer arc surface 111 and the inner side surface 112 are similar to the tooth surfaces of a gear. In the embodiment of the present application, the outer arc surface 111 and the inner side surface 112 refer to the surfaces where the buckle 1 enters the buckle groove 2 and contacts the groove wall of the buckle groove 2, and the outer arc surface 111 is the surface that meshes and abuts with the inclined surface block 21.

[0057] When the arc-shaped gear teeth of the buckle 1 are buckled into the buckle groove 2 , a portion of the outer arc surface 111 is meshed and abutted with the inclined surface block 21 .

[0058] The size of the ramp block 21 is not limited in the embodiment of the present application, and the design standard is that it can mesh with the tooth surface. If the size of the ramp block 21 is too large, it will affect the arc gear teeth from entering the buckle groove 2. If the size of the ramp block 21 is too small, it cannot mesh with the arc gear teeth, and the effect of the tight assembly of the buckle 1 and the buckle groove 2 cannot be achieved. At the same time, the material of the ramp block 21 of the present application is not limited, and the ramp block 21 can be made of the same material as the buckle groove 2. It can also be a ramp block 21 made of elastic material. When the elastic ramp block 21 meshes and abuts, in addition to the abutment stress that can be generated by the traditional gear structure, it also has the elastic pressure of the elastic material itself, which can further increase the assembly stability of the buckle 1 and the buckle groove 2. The material of the ramp block 21 can also be a hard material.

[0059] Beneficial effects of the embodiments of the present application: The fan panel snap-on component includes a snap-on and a snap-on groove, the snap-on is gear-shaped, the snap-on includes arc-shaped gear teeth, and the arc-shaped gear teeth include tooth roots and tooth tips.

[0060] The opening of the buckle groove is larger than the size of the tooth root, so that the arc gear can be accommodated in the buckle groove. A bevel block is provided on the groove wall facing the outer arc surface of the buckle groove. The cross section of the bevel block gradually increases along the groove bottom direction of the buckle groove, and the bevel block can form abutment with the arc gear.

[0061] The buckling end of the buckle in the embodiment of the present application is an arc-shaped gear tooth. When the arc-shaped gear tooth of the buckle is buckled into the buckle groove along the arc trajectory, one end of the tooth tip of the arc-shaped gear tooth first passes through the cavity between the inclined block and the groove wall. As the arc-shaped gear tooth goes deeper, the outer arc surface of the arc-shaped gear tooth (the part close to the tooth root) gradually abuts against the inclined block (gradually increasing along the bottom direction of the buckle groove), and the deadweight of the panel forms a stable buckle connection between the buckle and the buckle groove.

[0062] The outer arc surface abuts against the inclined surface block to generate abutment stress, so that the buckle can be tightly assembled with the buckle groove. In addition, through the abutment method, there is no pressing and locking situation, and the buckle can be directly taken out of the buckle groove during disassembly.

[0063] Embodiment 2

[0064] The above-mentioned embodiment introduces a fan panel fastener that is easy to install and disassemble. The embodiment of the present application also provides a further improvement scheme for the fan panel fastener.

[0065] Figure 6 is a buckle cross-sectional view of a fan panel buckle shown in an embodiment of the present application;

[0066] Figure 7 is an enlarged view of a fan panel fastener of a fan panel and a fan host housing mounting structure shown in an embodiment of the present application;

[0067] Figure 8 It is another enlarged view of the fan panel clip of the fan panel and fan host housing mounting structure shown in the embodiment of the present application.

[0068] See also Figure 6 , Figure 7 and Figure 8 .

[0069] The fan panel clip of the embodiment of the present application includes a clip 1 and a clip groove 2, the clip 1 includes an arc gear, the arc gear includes a tooth tip 11 and a tooth root 12, the size of the arc gear tooth is smaller than the clip groove 2, so that the arc gear tooth can be accommodated in the clip groove 2, the opening of the clip groove 2 is larger than the size of the tooth root 12, the clip 1 is arranged on the fan panel housing to prevent the fan panel clip from falling into the clip groove 2 and to stabilize the clip 1, a slope block 21 is arranged on the groove wall of the clip groove 2, the slope block 21 is inclined toward the groove bottom of the clip groove 2, an outer arc surface 111 and an inner side surface 112 are formed between the tooth root 12 and the tooth tip 11, and the outer arc surface 111 is meshed and abutted with the slope block 21.

[0070] The buckle 1 of the fan panel buckle includes arc-shaped gear teeth. The specific structure of the arc-shaped gear teeth is that the tooth root 12 is close to the tooth tip 11. On the one hand, it has a certain gathering force. When the buckle 1 is tightly assembled with the buckle groove 2, the force is more concentrated and the assembly is more stable. On the other hand, it is combined with the application field of the fan panel buckle. For example, it can be used in a fresh air fan. The buckle 1 is set on the fresh air fan panel. The tooth root 12 of the arc-shaped structure limits the position of the panel through the arc, which can limit the freedom of the panel and can also be quickly engaged with the buckle groove 2 when the panel is installed.

[0071] The arc-shaped gear teeth of the present application include an inner side surface 112 and an outer arc surface 111. The outer arc surface 111 is the tooth surface that meshes with the bevel block 21. The tooth profile line also adopts the naming method of the traditional gear structure. The first tooth profile line 14 of the present application refers to the line presented by the outer arc surface 111 in the cross section of the arc-shaped gear tooth.

[0072] The tooth profile of the outer curved surface 111 includes a contact section 141 and a tooth tip section 142. The intersection of the contact section 141 and the tooth tip section 142 is the meshing contact position between the outer curved surface 111 and the inclined surface block 21. The length ratio of the contact section 141 and the tooth tip section 142 is between 2 / 3 and 3 / 2, that is, the ratio of the tooth profile of the contact section 141 and the outer curved surface 111 is between 2 / 5 and 3 / 5. The specific ratio can be set according to actual conditions.

[0073] The reason why the embodiment of the present application adopts this ratio is that when the buckle 1 and the buckle slot 2 are actually installed, the outer arc surface 111 meshes and abuts with the inclined surface block 21, and the principle is the meshing between two teeth (one gear tooth is an arc gear tooth, and the other gear tooth is an inclined surface block 21). The specific buckling process is that the buckling end of the fan panel buckle is an arc gear tooth. When the arc gear tooth of the buckle 1 buckles into the buckle slot 2 along the arc motion trajectory, one end of the tooth tip 11 of the arc gear tooth first passes through the cavity between the inclined surface block 21 and the slot wall. As the arc gear tooth goes deeper, the outer arc surface 111 of the arc gear tooth (the part close to the tooth root 12) gradually meshes and abuts with the inclined surface block 21 (gradually increasing along the bottom direction of the buckle slot 2), and the deadweight of the panel forms a stable buckling connection between the buckle 1 and the buckle slot 2.

[0074] The force generated by the mutual abutment between the arc gear teeth and the bevel block 21 is evenly distributed on the arc gear teeth and the bevel block 21. Because the contact point on the outer arc surface 111 is constantly changing, the comprehensive curvature of each point on the meshing line (i.e., the tangent of the contact point between the outer arc surface 111 and the bevel block 21) is different. As the outer arc surface 111 and the bevel block 21 mesh with each other, when the arc gear teeth rotate a certain angle, the contact stress generated at the ratio of 2 / 5-3 / 5 between the tooth profile line of the abutment section 141 and the outer arc surface 111 is the largest, so this application adopts this ratio range.

[0075] The abutment section 141 of the present application is a straight line, and the tooth tip section 142 is an arc line. The abutment section 141 is designed as a straight line, and the outer arc surface 111 abuts against the inclined surface block 21 of the buckle groove 2. The buckle groove 2 is similar in shape to a gear. When assembling, the buckle 1 rotates a certain angle. When it needs to be disassembled, the buckle 1 and the buckle groove 2 are still in a meshing and abutting state. In order to facilitate the disassembly of the buckle 1, the abutment section 141 is designed as a straight line, leaving a certain gap between the buckle 1 and the buckle groove 2, which is convenient for the disassembly of the buckle 1. At the same time, the design of the abutment section 141 also provides convenience for the application of the fan panel buckle. For example, the fan panel buckle is applied to the panel of the new fan. When disassembling the panel, the abutment section 141 is a straight line, and the panel can be directly lowered and lifted for disassembly, which is very convenient for taking out the panel.

[0076] Beneficial effects of the embodiments of the present application:

[0077] 1. The buckle includes arc-shaped gear teeth, which, on the one hand, makes the force more concentrated and the assembly more stable when the buckle is tightly assembled with the buckle groove, and on the other hand, the buckle can be aligned with the buckle groove very quickly.

[0078] 2. The ratio of the tooth profile of the abutment section to the outer arc surface is between 2 / 5 and 3 / 5. This design can maximize the abutment stress between the buckle and the buckle groove, thereby increasing the stability of the assembly.

[0079] 3. Design the abutment section as a straight line, leaving a certain gap between the buckle and the buckle groove to facilitate the removal of the buckle.

[0080] Embodiment 3

[0081] The above-mentioned embodiment introduces the structure of the outer curved surface of the fan panel fastener. The embodiment of the present application also makes an inventive design for the structure of the inner side surface 112 .

[0082] Figure 6 is a buckle cross-sectional view of a fan panel buckle shown in an embodiment of the present application;

[0083] Figure 7 is an enlarged view of a fan panel fastener of a fan panel and a fan host housing mounting structure shown in an embodiment of the present application;

[0084] Figure 8 It is another enlarged view of the fan panel clip of the fan panel and fan host housing mounting structure shown in the embodiment of the present application.

[0085] See also Figure 6 , Figure 7 and Figure 8 .

[0086] In addition to any of the structures mentioned in the above embodiments, the fan panel clip of the embodiment of the present application also includes an inner side surface 112, and the inner side surface 112 includes a supporting surface 1121, a connecting surface 1122 and a guide surface 1123, and the two ends of the connecting surface 1122 are respectively connected to the supporting surface 1121 and the guide surface 1123, and the supporting surface 1121 is connected to the tooth root 12.

[0087] The angle between the support surface 1121 and the tooth root surface 113 is less than or equal to 95 degrees. The present embodiment exemplarily adopts 95 degrees. When the buckle 1 and the buckle groove 2 are assembled, the support surface 1121 is hung on the groove wall of the buckle groove 2 through the angle with the tooth root surface 113. The support surface 1121 is used to bear the dead weight of the fan panel buckle.

[0088] The tooth root surface 113 refers to the surface where the arc-shaped gear teeth are connected to the fan panel.

[0089] The connection angle between the connecting surface 1122 and the supporting surface 1121 is greater than or equal to 200 degrees. The embodiment of the present application adopts 200 degrees for example. The setting of this angle makes it easy for the buckle 1 to rotate in the buckle slot 2 without affecting the removal of the panel due to the buckle 1 and the buckle slot 2 being assembled too tightly.

[0090] The connection angle between the guide surface 1123 and the connection surface 1122 is greater than or equal to 120 degrees. The guide surface 1123 serves as a guide so that the buckle 1 can be directly inserted into the buckle slot 2 .

[0091] The inner side surface 112 presents a second tooth profile line 15 in the cross section of the arc-shaped gear tooth. The second tooth profile line 15 includes a support segment 151 corresponding to the support surface 1121 , a connection segment 152 corresponding to the connection surface 1122 , and a guide segment 153 corresponding to the guide surface 1123 .

[0092] The length of the support section 151 is greater than or equal to 4 mm. The specific length can be determined according to the actual application. The embodiment of the present application adopts 4 mm. The length of the support section 151 is limited to avoid being too long and increasing the difficulty of removing the buckle 1 when removing the buckle 1.

[0093] The length of the connecting section 152 is greater than or equal to 7 mm. The specific length can be determined according to the actual application situation. The embodiment of the present application adopts 7 mm as an example. The setting of the length of the connecting section 152 increases the size of the buckle 1 to achieve the stability of the overall structure of the buckle 1, improve the strength of the buckle 1, and enable the buckle groove 2 to lock the buckle 1.

[0094] The length of the guide section 153 is greater than or equal to 4 mm. The specific length can be determined according to the actual application situation. The embodiment of the present application adopts 4 mm as an example.

[0095] In addition, the distance from the tooth tip 11 to the tooth root 12 is smaller than the depth of the snap groove 2. This structural setting ensures that the arc-shaped gear teeth can be snapped into the snap groove 2 without conflicting with the bottom of the snap groove 2, causing the fan panel snap parts to be unusable.

[0096] A hanging platform groove 22 is also provided on the top of the buckle groove 2 of the embodiment of the present application, and the buckle 1 is provided with a hanging platform 13 matching the hanging platform groove 22. When the buckle 1 is assembled with the buckle groove 2, the hanging platform groove 22 hangs the buckle 1, thereby increasing the stability of the fan panel buckle in the assembled state.

[0097] The beneficial effects of the embodiments of the present application are as follows: the inner side surface is provided with a supporting surface, a connecting surface and a guiding surface; the supporting surface is in direct contact with the buckle slot to provide support for the buckle; the setting of the connecting surface increases the size of the buckle to achieve the stability of the overall structure of the buckle, improves the strength of the buckle, and enables the buckle slot to lock the buckle; the setting of the guide surface plays a guiding role, and the buckle can be directly inserted into the buckle slot.

[0098] Embodiment 4

[0099] For most of the fresh air fans on the market, the installation of their external panels uses the limiting relationship formed between the clips and the clip grooves on the back of the panel. The clips must be pulled out of the clip grooves during assembly and disassembly. This method of fixing by squeezing the clips and clip grooves is not convenient for people to overhaul the whole machine and replace parts such as filters. If the number of assembly and disassembly is too many, the clips are prone to failure, affecting the service life of the panel. The fresh air fan of the embodiment of the present application will adopt the fan panel clips mentioned above. For the fresh air fan adopting the fan panel clips of the present application, the panel of the fresh air fan is easy to assemble and disassemble, which will increase the service life of the fresh air fan panel.

[0100] Figure 4 It is a schematic diagram of the installation structure of the fan panel and the fan host housing shown in the embodiment of the present application;

[0101] Figure 5 It is a structural diagram of the fan panel shown in an embodiment of the present application.

[0102] See also Figure 4 and Figure 5 .

[0103] The buckle 1 is arranged on the panel housing of the fresh air fan, specifically, on the top of the back side of the panel of the fresh air fan, and the buckle groove 2 is correspondingly arranged on the main body housing of the fresh air fan.

[0104] The back of the new fan panel of the embodiment of the present application is provided with criss-cross reinforcing ribs, which not only ensure the strength of the panel but also greatly limit the deformation of the panel, and prevent the panel from being deformed too much due to extrusion during transportation. The upper and lower sides of the panel adopt an arc design, and the position of the panel is limited by the arc, which limits the freedom of the upper and lower parts of the panel. The upper side of the panel adopts an arc design, which is also suitable for the fan panel clip of the present application. The clip 1 of the fan panel clip includes arc gear teeth.

[0105] When installing the panel, align the buckle 1 of the fan panel buckle of the fresh air fan with the buckle slot 2 on the fresh air fan main body shell, and the entire fresh air fan panel will fall vertically due to gravity. In order to make the fresh air fan panel more stably installed on the fresh air fan main body shell, 6 magnet slots are set on both sides of the back of the fresh air fan panel of the embodiment of the present application, and magnets are installed in the magnet slots. When the buckle 1 is aligned with the corresponding buckle slot 2 and the meshing contact is completed, the magnet on the panel will produce a magnetic attraction phenomenon, corresponding to the magnet on the fan main body shell, and then produce a fit, which limits the front and rear degrees of freedom of the panel, and the panel will be stably fixed on the base surface.

[0106] When removing the panel, first gently pull the fan panel forward to make the panel fit with the base surface without magnets, and then lift the panel directly upward to complete the panel removal.

[0107] The beneficial effects of the embodiments of the present application: the buckle and the buckle groove are not matched by extrusion, but the buckle is buckled into the buckle groove by the weight of the panel, and the arc gear engages and abuts with the bevel block, so that the buckle and the buckle groove can be tightly assembled. In addition, through the meshing contact, since there is no pressing and locking during assembly, there is no need to pull hard during disassembly, and the panel can be directly lifted from the buckle groove, which reduces buckle failure and increases the service life of the panel.

[0108] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A fan panel fastener, characterized in that: It comprises a buckle (1) and a buckle slot (2), wherein the buckle (1) is arranged on a fan panel housing; and the buckle slot (2) is arranged on a fan mainframe housing; The buckle (1) comprises arc-shaped gear teeth; The arc-shaped gear teeth include a tooth root (12) and a tooth tip (11); An outer arc surface (111) and an inner side surface (112) are formed between the tooth root (12) and the tooth tip (11); the inner side surface (112) comprises a supporting surface (1121), a connecting surface (1122) and a guiding surface (1123); the supporting surface (1121) and the guiding surface (1123) are arranged at two ends of the connecting surface (1122), and the supporting surface (1121) is connected to the tooth root (12); The included angle between the support surface (1121) and the tooth root surface (113) is less than or equal to 95 degrees; the connection angle between the support surface (1121) and the connection surface (1122) is greater than or equal to 200 degrees, and the connection angle between the connection surface (1122) and the guide surface (1123) is less than or equal to 120 degrees; the tooth root surface (113) is the surface where the arc-shaped gear teeth are connected to the fan panel; The opening of the buckle groove (2) is larger than the size of the tooth root (12); a slope block (21) is provided on the groove wall of the buckle groove (2) facing the outer arc surface (111); the cross section of the slope block (21) gradually increases along the groove bottom direction of the buckle groove (2); the distance from the tooth tip (11) to the tooth root (12) is smaller than the depth of the buckle groove (2); When the arc-shaped gear teeth of the buckle (1) are buckled into the buckle groove (2), part of the outer arc surface (111) abuts against the inclined surface block (21).

2. The fan panel fastener according to claim 1, characterized in that: The outer arc surface (111) presents a first tooth profile line (14) in a cross section of the arc-shaped gear tooth, and the first tooth profile line (14) comprises an abutment section (141) and a tooth tip section (142); The length ratio of the abutment section (141) to the tooth tip section (142) ranges from 2 / 3 to 3 / 2.

3. The fan panel fastener according to claim 2, characterized in that: The abutment section (141) is a straight line, and the tooth tip section (142) is an arc line.

4. The fan panel fastener according to claim 1, characterized in that: The inner side surface (112) presents a second tooth profile line (15) in a cross section of the arc-shaped gear tooth, and the second tooth profile line (15) includes a supporting section (151), a connecting section (152) and a guiding section (153); The support surface (1121) corresponds to a support section (151), and the length of the support section (151) is less than or equal to 4 millimeters.

5. The fan panel fastener according to claim 4, characterized in that: The connecting surface (1122) corresponds to a connecting section (152), and the length of the connecting section (152) is less than or equal to 7 millimeters.

6. The fan panel fastener according to claim 4, characterized in that: The guide surface (1123) corresponds to a guide section (153), and the length of the guide section (153) is less than or equal to 4 millimeters.

7. The fan panel fastener according to claim 1, characterized in that: A hanging platform groove (22) is arranged at the top of the buckle groove (2), and the buckle (1) is provided with a hanging platform (13) matching the hanging platform groove (22), and the hanging platform groove (22) hangs the buckle (1).

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