Fixing structure applied to fan and automobile seat

Abstract

The utility model discloses a fixing structure applied to a fan and an automobile seat, and relates to the technical field of fan equipment. Wherein the fixing structure comprises a first clamping part and a first fixing part which are respectively arranged on the first shell and the second shell; the first clamping part comprises at least two clamping structures; a first communicating hole is formed in the clamping structure; the first fixing part comprises at least two fixing structures and is arranged on the second shell, and the fixing structures correspond to the clamping structures one to one; a second communicating hole is formed in the fixing structure, the second communicating hole and the corresponding first communicating hole jointly form a connecting space, and the connecting space is used for being matched with an external connecting piece to connect the fan with the internal structure of the automobile seat; the side wall of each fixing structure is provided with a reserved opening part, and the reserved opening parts communicate with the second communicating holes. The structure can effectively reduce the structural range which the damping rubber nail must exceed, saves the working time for installing the damping rubber nail, and greatly improves the installation efficiency.

Description

Technical Field

[0001] The present disclosure generally relates to the technical field of fan equipment, and more particularly to a fixing structure applied to a fan and a car seat. Background Art

[0002] The fan is generally connected to the internal structure of the car seat by using shock-absorbing rubber nails. In the prior art, the shock-absorbing rubber nails used are too long, so they are easily caught in the fan blades. This phenomenon will cause the fan performance to fail. Therefore, in order to avoid this phenomenon, the excessively long shock-absorbing rubber nails need to be manually shortened, which is time-consuming and labor-intensive. Therefore, there is an urgent need for a fixing structure for the fan that can solve the above problem. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a fixing structure for a fan and a car seat that saves time and labor costs.

[0004] In a first aspect, the present application provides a fixing structure applied to a fan, wherein the fixing structure is arranged on a fan housing, and the fan has a detachable first housing and a second housing;

[0005] The fixed structure comprises:

[0006] A first clamping portion, wherein the first clamping portion includes at least two clamping structures; the clamping structures are disposed on the first housing; and a first connecting hole is formed on the clamping structures;

[0007] A first fixing part, wherein the first fixing part includes at least two fixing structures; the fixing structures are arranged on the second shell, and each of the fixing structures is arranged in a one-to-one correspondence with the clamping structure; a second connecting hole is opened on the fixing structure, and the second connecting hole and the corresponding first connecting hole together form a connecting space, and the connecting space is used to cooperate with an external connecting piece to connect the fan to the internal structure of the car seat;

[0008] Wherein, each side wall of the fixed structure is provided with a reserved opening portion, and the reserved opening portion is connected with the second connecting hole; the reserved opening portion is used to reduce the structural range that the connecting piece needs to exceed.

[0009] According to the technical solution provided in the present application, the fixing structure includes: a fixing column, which is arranged at the outer edge of the second shell and extends in a direction toward the first clamping portion;

[0010] The fixing column is provided with the second communicating hole penetrating along its extending direction, and the side wall thereof is provided with the reserved opening portion, and the reserved opening portion includes at least one notch communicating with the second communicating hole.

[0011] According to the technical solution provided by the present application, in the fixing column, the side wall edge forming the notch includes: a smoothly connected straight section and an arc-shaped reinforcement section;

[0012] The arc-shaped reinforcement section is located at a side of the straight section close to the first clamping portion, and the arc-shaped reinforcement section is bent toward a side away from the central axis of the fan to enhance the structural strength of the notch.

[0013] According to the technical solution provided in the present application, the notch is opened on a side of the fixing column away from the central axis of the fan.

[0014] According to the technical solution provided in the present application, the clamping structure includes: a clamping platform, the clamping platform is arranged at the outer edge of the first shell;

[0015] A clamping protrusion, the clamping protrusion is arranged on a side of the clamping platform close to the fixing column;

[0016] The first communicating hole is formed on the clamping platform and penetrates the clamping platform and the clamping protrusion along the extending direction of the clamping protrusion. The first communicating hole and the second communicating hole are formed in a one-to-one correspondence.

[0017] According to the technical solution provided in this application, the clamping protrusion has a connecting section and a clamping section;

[0018] The connecting section is connected to the clamping platform, and the clamping section is located at an end of the connecting section away from the clamping platform;

[0019] The end of the engaging section with the largest transverse cross-sectional length is connected to the connecting section, and the maximum transverse cross-sectional length of the connecting section is smaller than the maximum transverse cross-sectional length of the engaging section.

[0020] According to the technical solution provided in the present application, the inner side wall of the fixing column has a snap-fitting protrusion for cooperating with the snap-fitting section; the snap-fitting section extends into the second connecting hole and snap-fits with the snap-fitting protrusion to achieve snap-fitting and fixing of the first shell and the second shell.

[0021] According to the technical solution provided in the present application, the numbers of the clamping structures and the fixing structures are set correspondingly, and a plurality of the clamping structures and the fixing structures are arranged at intervals at the outer edges of the first shell and the second shell.

[0022] In a second aspect, the present application proposes a car seat, which should have the above-mentioned fixing structure applied to a fan, wherein the internal connection structure of the car seat comprises: a fixing plate, the fixing plate is used to be connected to the fan;

[0023] After the first shell and the second shell of the fan are clamped and fixed, the fan is fixed on the fixing plate by cooperating with the external connecting member through the connection space formed by the corresponding clamping structure and the fixing structure thereon.

[0024] According to the technical solution provided in the present application, a limiting structure is provided on the fixing plate, and the internal connection structure of the car seat further includes: a back spring, and the back spring is engaged with the limiting structure to fix the fan to the back spring.

[0025] In summary, the technical solution specifically discloses a fixing structure for a fan and a car seat. Wherein, the fixing structure includes: a first clamping part and a first fixing part. The first clamping part includes at least two clamping structures; the clamping structure is arranged on the first shell; a first connecting hole is provided on the clamping structure; the first fixing part includes at least two fixing structures; the fixing structure is arranged on the second shell, and each of the fixing structures is arranged one-to-one with the clamping structure; a second connecting hole is provided on the fixing structure, and the second connecting hole and the corresponding first connecting hole together form a connecting space, and the connecting space is used to cooperate with an external connecting piece to connect the fan to the internal structure of the car seat; wherein, each side wall of the fixing structure is provided with a reserved opening part, and the reserved opening part is connected to the second connecting hole; the reserved opening part is used to reduce the structural range required for the connecting piece to exceed.

[0026] In the prior art, since the shock-absorbing rubber nails used to fix the fan on the internal structure of the car seat are too long, the shock-absorbing rivets are easily rolled into the fan blades, so the long shock-absorbing rubber nails need to be manually shortened, which is time-consuming and labor-intensive. In the present application, a reserved opening is provided on the side wall of the fixing structure for providing a connection space for the shock-absorbing rubber nails, thereby reducing the structural range that the shock-absorbing rubber nails must exceed, so that the fan can be fixed on the internal structure of the car seat by using shock-absorbing rubber nails of smaller specifications, which saves the time for installing the shock-absorbing rubber nails and greatly improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0028] Figure 1 The figure is a schematic diagram of a fixing structure applied to a fan.

[0029] Figure 2 The figure is a schematic diagram of an assembly of a fixing structure applied to a fan.

[0030] Figure 3It is a partially enlarged schematic diagram of a fixing structure used in a fan.

[0031] Figure 4 A top view of the fan structure.

[0032] Figure 5 The present invention is a partial cross-sectional view of a connection of a fixing structure applied to a fan.

[0033] Figure 6 The figure is a schematic diagram of the installation of a fan connected to the internal structure of a car seat through a fixing structure and a connecting piece.

[0034] Figure 7 The figure is a structural schematic diagram of an original fixing structure applied to a fan.

[0035] Figure 8 The figure is a schematic diagram of a structure in which an original fixing structure and a connecting piece are used together for a fan.

[0036] Fig. 9 It is a partially enlarged schematic diagram of an original fixed structure in a fixed structure used for a fan.

[0037] Fig.10 It is a three-dimensional schematic diagram showing that a fan is connected to the internal structure of a car seat through a fixing structure and a connecting piece.

[0038] Fig.11 It is a partial enlarged schematic diagram of the connecting part when the fan is connected to the internal structure of the car seat through the fixing structure and the connecting part.

[0039] Numbers in the figure: 1. fan; 11. first shell; 12. second shell; 13. fan blade; 3. snap-fit ​​structure; 31. first connecting hole; 32. snap-fit ​​platform; 33. snap-fit ​​protrusion; 34. connecting section; 35. snap-fit ​​section; 4. fixing structure; 41. second connecting hole; 42. reserved opening; 421. straight section; 422. arc-shaped reinforcement section; 43. fixing column; 44. snap-fit ​​protrusion; 5. connecting piece; 6. back spring; 7. fixing plate; 71. limiting structure; 03. original snap-fit ​​structure; 04. original fixing structure; 05. original connecting piece. DETAILED DESCRIPTION

[0040] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] Example 1

[0043] Please refer to Figure 1 , Figure 4 or Figure 5 The present embodiment shown in the figure provides a structural schematic diagram of a fixing structure applied to a fan and a partial cross-sectional view of the connection of the fixing structure. The fixing structure is arranged on a fan housing. The fan 1 has a detachable first housing 11 and a second housing 12. The fixing structure includes:

[0044] A first clamping portion, wherein the first clamping portion includes at least two clamping structures 3; the clamping structures 3 are disposed on the first housing 11; and a first connecting hole 31 is formed on the clamping structures;

[0045] A first fixing part, the first fixing part includes at least two fixing structures 4; the fixing structures 4 are arranged on the second shell 12, and each of the fixing structures 4 is arranged in a one-to-one correspondence with the clamping structure 3; a second connecting hole 41 is opened on the fixing structure 4, and the second connecting hole 41 and the corresponding first connecting hole 31 together form a connecting space, and the connecting space is used to cooperate with the external connecting piece 5 to connect the fan 1 to the internal structure of the car seat;

[0046] Wherein, each side wall of the fixing structure 4 is provided with a reserved opening portion 42 , and the reserved opening portion 42 is connected to the second connecting hole 41 ; the reserved opening portion 42 is used to reduce the structural range that the connecting member 5 needs to exceed.

[0047] First, we need to combine Figure 7-Figure 9 The defects of the prior art are understood so as to have a clearer understanding of the embodiments of the present application. The fan 1 is generally connected to the internal structure of the car seat by using shock-absorbing rubber nails as connecting parts. However, the original clamping structure 03 set on the fan housing is a fully enclosed structure (see Fig. 9 ), so it is necessary to use a longer shock-absorbing rubber nail to pass through the connecting hole after the upper and lower shells are clamped, and then connect the fan 1 to the specified internal structure of the car seat. However, since the shock-absorbing rubber nail used is too long, in order to prevent it from being involved in the fan blades 13 of the fan 1, it is also necessary to manually shorten the excessive part of the shock-absorbing rubber nail. For details, please refer to Figure 8 and Fig. 9 The comparison of Fig. 9 The shock-absorbing rubber nails in the middle are in the form of shortened shock-absorbing rubber nails.

[0048] In view of this, in order to save the time for installing shock-absorbing rubber nails and reduce unnecessary operating steps, a fixing structure applied to a fan is proposed in an embodiment of the present application; the fixing structure includes: a first clamping portion and a first fixing portion; wherein the first clamping portion and the first fixing portion are arranged on the first shell 11 and the second shell 12 of the fan 1; the first shell 11 can also be referred to as the upper shell of the fan 1, and the second shell 12 can be referred to as the lower shell of the fan 1. It should be noted that the use of the first and second to distinguish the upper and lower shells here is only for the convenience of description, and there is actually no difference between the first and second.

[0049] The first clamping part of the first shell 11 has at least two clamping structures 3. The actual number of the clamping structures 3 is determined according to the actual situation. At least two can ensure the connection stability of the fan 1. If multiple clamping structures 3 are provided, the multiple clamping structures 3 need to be arranged at intervals on the edge of the first shell 1, and the same applies to the fixing structure 4. Since the fan 1 needs to be connected to the internal structure of the car seat through an external connector 5 (for example, the shock-absorbing rubber nails mentioned above), a first connecting hole 31 is opened on the clamping structure, and the first connecting hole 31 is the connection space reserved for the connector 5;

[0050] Similarly, a fixing structure 4 corresponding to the clamping structure 3 is provided on the second housing 12. It is not difficult to see that in order to clamp the upper and lower housings of the fan 1, the number and arrangement of the clamping structure 3 and the fixing structure 4 need to be set accordingly; a second connecting hole 41 is opened on the fixing structure 4, and the second connecting hole 41 and the corresponding first connecting hole 31 together form a connecting space (see Figure 5 ), that is, the placement space of the connecting member 5, the connecting member 5 can pass through the connecting space to achieve external connection of the fan 1;

[0051] At the same time, at least one reserved opening 42 is provided on the side wall of the fixing structure 4 , and the reserved opening 42 is connected to the second connecting hole 41 , that is, the entire fixing structure 4 is designed as a semi-enclosed structure to reduce the structural range that the connecting member 5 needs to exceed.

[0052] Specifically, in a preferred embodiment, the fixing structure 4 includes: a fixing column 43, the fixing column 43 is arranged at the outer edge of the second shell 12, and its extension direction is toward the first clamping portion;

[0053] The fixing column 43 is provided with the second communicating hole 41 penetrating along its extending direction, and the side wall thereof is provided with the reserved opening portion 42, and the reserved opening portion 42 includes at least one notch communicating with the second communicating hole 41;

[0054] Compared with the original fixing structure of the fan 1, in order to adapt to the structural design of opening the reserved opening 42 on the fixing column 43, the fixing column 43 needs to extend a little in the direction close to the first clamping portion (which can be Figure 7 Compared with the original fixing structure 04 shown in FIG. 1 , in order to ensure that the overall height of the fan 1 remains unchanged, the height of the first clamping portion is shortened.

[0055] The fixing column 43 is provided with the second connecting hole 41 penetrating along its extending direction, and the side wall thereof is provided with the reserved opening portion 42. At this time, the reserved opening portion 42 can be understood as a notch, and the opening of the notch is oriented in the direction away from the first fixing portion, which is equivalent to the notch being connected to the bottom of the fixing column 43 while retaining the partial integrity of the top of the fixing column 43; the bottom and the top are defined here with reference to the proximity and distance between the fixing column 43 and the first shell 11, the end that is close is the top, and the end that is away is the bottom.

[0056] In fact, the reserved opening 42 is provided in the form of a notch extending along the aperture direction of the second connecting hole 41, and its opening faces a direction away from the central axis of the fan 1 (for details, see Figure 1 ); With such a structural design, the fixing structure 4 can be fixed with shorter shock-absorbing rubber nails. In simple terms, the semi-enclosed structure can be installed when the length of the shock-absorbing rubber nails exceeds the local side wall of the fixing structure 4 where the reserved opening 42 is not provided, thereby effectively reducing the structural range that the shock-absorbing rubber nails must exceed. Then the length of the connecting member 5 can be shortened. In actual situations, only short-sized shock-absorbing rubber nails are used, and there is no need to shorten the long shock-absorbing rubber nails.

[0057] In a preferred embodiment, in order to ensure the structural strength of the reserved opening 42, in the fixing column 43, the side wall edge forming the notch includes: a smoothly connected straight section 421 and an arc-shaped reinforcement section 422;

[0058] The arc-shaped reinforcement section 422 is located at a side of the straight section 421 close to the first clamping portion. The arc-shaped reinforcement section 422 is curved toward a side away from the central axis of the fan 1 to enhance the structural strength of the notch.

[0059] Since the reserved opening 42 essentially includes at least one notch opened on the side wall of the fixed column 43, it can be adjusted according to the actual situation. For example, when there is a higher lightweight requirement, multiple notches can be opened. Furthermore, the shape of the notch is actually determined by the edge of the side wall of the fixed column 43 that forms the notch. In order to ensure that the notch has a certain strength, a straight section 421 + arc-shaped reinforcement section 422 is used instead of a complete horizontal opening form, so that the structural section at the top of the notch (close to the end of the first clamping part) forms a certain arc section, while not changing the structural range reserved for the connector 5 to exceed, the side area of ​​the notch is widened, so that the structural strength of the reserved opening 4 is improved.

[0060] In a preferred embodiment, if Figure 1 or Figure 2 As shown, the notch is opened on a side of the fixing column 43 away from the central axis of the fan 1 .

[0061] Since the reserved opening portion 42 is a local opening on the fixing column 43, in order to provide a certain protection for the connecting member 5, the reserved opening portion 42 can be set on a side away from the central axis of the fan 1, so that when the connecting member 5 is inserted into the second connecting hole 41, the column wall of the fixing column 43 is between it and the fan blades 13 inside the fan 1.

[0062] In a preferred embodiment, if Figure 2 , Figure 4 or Figure 5 As shown, the clamping structure 3 includes: a clamping platform 32 , which is arranged at the outer edge of the first shell 11 ; the clamping platform 32 is used to support the clamping protrusion 33 .

[0063] The clamping protrusion 33 is disposed on a side of the clamping platform 32 close to the fixing column 43 ; the clamping protrusion 33 is used to be clamped with the fixing structure 4 to achieve the clamping of the first shell 11 and the second shell 12 .

[0064] The first connecting hole 31 is configured as follows: the first connecting hole 31 is opened on the clamping platform 32 and penetrates the clamping platform 32 and the clamping protrusion 33 along the extending direction of the clamping protrusion 33 , and the first connecting hole 31 and the second connecting hole 41 are configured in a one-to-one correspondence.

[0065] In a preferred embodiment, if Figure 2 and Figure 5 As shown, since the clamping structure 3 and the fixing structure 4 also need to realize the connection between the first shell 11 and the second shell 12, in order to ensure the connection strength between the first shell 11 and the second shell 12, the clamping protrusion 33 has a connecting section 34 and a clamping section 35;

[0066] The connecting section 34 is connected to the clamping platform 32, and the clamping section 35 is located at an end of the connecting section 34 away from the clamping platform 32;

[0067] The end of the engaging section 35 with the largest transverse cross-sectional length is connected to the connecting section 34 , and the maximum transverse cross-sectional length of the connecting section 34 is smaller than the maximum transverse cross-sectional length of the engaging section 35 .

[0068] The above structural design can be simply understood as that the engaging section 35 is a protruding structure provided on the connecting section 34 and is used for engaging with the fixing structure 4 .

[0069] In a preferred embodiment, if Figure 5 As shown, the inner side wall of the fixing column 43 has a snap-fitting protrusion 44 for cooperating with the snap-fitting section 35;

[0070] When the snap-fitting structure 3 and the fixing structure 4 are snapped together, the snap-fitting section 35 will extend into the second connecting hole 41 and snap-fit ​​with the snap-fitting protrusion 44 (the end of the snap-fitting section 35 with the largest transverse cross-sectional length will snap into the snap-fitting protrusion 44) to achieve snap-fit ​​fixation of the first shell 11 and the second shell 12.

[0071] Based on the realization of the above-mentioned engagement process, the diameter of the second communication hole 41 at the engagement protrusion 44 needs to be smaller than the transverse cross-sectional length of the engagement section 35 (see Figure 5 ).

[0072] Example 2

[0073] Based on the fixing structure applied to a fan proposed in the above-mentioned embodiment 1, the embodiment of the present application proposes a car seat, the car seat comprising: an internal connection structure of the car seat;

[0074] See also Figure 6 , Fig.10 and Fig.11 , the internal connection structure of the car seat includes: a fixing plate 7, the fixing plate 7 is used to be connected to the fan 1;

[0075] After the first shell 11 and the second shell 12 of the fan 1 are snap-fitted and fixed, the fan 1 is fixed on the fixing plate 7 by cooperating with the external connecting member 5 through the connection space formed by the corresponding snap-fitting structure 3 and the fixing structure 4 thereon.

[0076] Specifically, after the first shell 11 and the second shell 12 of the fan 1 are clamped, the fan 1 is fixed on the fixing plate 7 through the connection space formed by the corresponding clamping structure 3 and the fixing structure 4 thereon and the external connecting member 5.

[0077] See also Fig.11 The internal connection structure of the car seat includes a fixing plate 7 and a back spring 6. At the same time, a limiting structure 71 is provided on the fixing plate 7 to complete the fixation with the back spring 6; then, taking the connecting member 5 as a shock-absorbing rubber nail as an example, in the actual installation process, the shock-absorbing rubber nail is provided with a structural protrusion that matches the connection space (see Fig.11 structure), which will not be elaborated here; when one end of the shock-absorbing glue nail passes through the first connecting hole 31 and the second connecting hole 41 to complete the engagement with the fixed structure, the other end of the shock-absorbing glue nail can be passed through the preset matching mounting hole on the fixing plate 7 to complete the connection between the fan 1 and the fixing plate 7.

[0078] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A fixing structure applied to a fan, characterized in that: The fixing structure is arranged on a fan housing, and the fan (1) has a separable first housing (11) and a second housing (12); The fixed structure comprises: A first clamping portion, the first clamping portion comprising at least two clamping structures (3); the clamping structures (3) are arranged on the first shell (11); and a first connecting hole (31) is provided on the clamping structures; A first fixing part, the first fixing part comprising at least two fixing structures (4); the fixing structures (4) are arranged on the second shell (12), and each of the fixing structures (4) is arranged in a one-to-one correspondence with the clamping structure (3); a second connecting hole (41) is provided on the fixing structure (4), the second connecting hole (41) and the corresponding first connecting hole (31) together form a connecting space, and the connecting space is used to cooperate with an external connecting piece (5) to connect the fan (1) to the internal structure of the car seat; Wherein, each side wall of the fixing structure (4) is provided with a reserved opening portion (42), and the reserved opening portion (42) is connected to the second connecting hole (41); the reserved opening portion (42) is used to reduce the structural range that the connecting member (5) needs to exceed.

2. A fixing structure for a fan according to claim 1, characterized in that: The fixing structure (4) comprises: a fixing column (43), the fixing column (43) being arranged at the outer edge of the second shell (12) and extending in a direction toward the first clamping portion; The fixing column (43) is provided with the second communicating hole (41) penetrating along its extending direction, and its side wall is provided with the reserved opening portion (42), wherein the reserved opening portion (42) includes at least one notch communicating with the second communicating hole (41).

3. A fixing structure for a fan according to claim 2, characterized in that: In the fixing column (43), the side wall edge forming the notch includes: a smoothly connected straight section (421) and an arc-shaped reinforcement section (422); The arc-shaped reinforcement section (422) is located on a side of the straight section (421) close to the first clamping portion, and the arc-shaped reinforcement section (422) is bent toward a side away from the central axis of the fan (1) to enhance the structural strength of the notch.

4. A fixing structure for a fan according to claim 2, characterized in that: The notch is formed on a side of the fixing column (43) away from the central axis of the fan (1).

5. The fixing structure for a fan according to claim 1, characterized in that: The clamping structure (3) comprises: a clamping platform (32), wherein the clamping platform (32) is arranged at the outer edge of the first shell (11); A clamping protrusion (33), wherein the clamping protrusion (33) is arranged on a side of the clamping platform (32) close to the fixing column (43); The clamping platform (32) is provided with the first connecting hole (31) which passes through the clamping platform (32) and the clamping protrusion (33) along the extending direction of the clamping protrusion (33), and the first connecting hole (31) and the second connecting hole (41) are arranged in a one-to-one correspondence.

6. A fixing structure for a fan according to claim 5, characterized in that: The clamping protrusion (33) has a connecting section (34) and a clamping section (35); The connecting section (34) is connected to the clamping platform (32), and the clamping section (35) is located at an end of the connecting section (34) away from the clamping platform (32); The end of the engaging section (35) having the largest transverse cross-sectional length is connected to the connecting section (34), and the maximum transverse cross-sectional length of the connecting section (34) is smaller than the maximum transverse cross-sectional length of the engaging section (35).

7. A fixing structure for a fan according to claim 6, characterized in that: The inner wall of the fixing column (43) has a locking protrusion (44) for cooperating with the locking section (35); the locking section (35) extends into the second connecting hole (41) and locks with the locking protrusion (44) to achieve the locking and fixing of the first shell (11) and the second shell (12).

8. The fixing structure for a fan according to claim 1, characterized in that: The number of the clamping structures (3) and the fixing structures (4) is set correspondingly, and a plurality of the clamping structures (3) and the fixing structures (4) are arranged at intervals on the outer edges of the first shell (11) and the second shell (12).

9. A car seat, characterized in that: There should be a fixing structure applied to a fan as described in any one of claims 1 to 8 above, the car seat comprising: an internal connection structure of the car seat; The internal connection structure of the automobile seat comprises: a fixing plate (7), wherein the fixing plate (7) is used to be connected to the fan (1); After the first shell (11) and the second shell (12) of the fan (1) are snap-fitted and fixed, the fan (1) is fixed on the fixing plate (7) by cooperating with the external connecting member (5) through the connection space formed by the corresponding snap-fitting structure (3) and the fixing structure (4) thereon.

10. The vehicle seat according to claim 9, characterized in that: A limiting structure (71) is provided on the fixing plate (7), and the internal connection structure of the automobile seat further comprises: a back spring (6), wherein the back spring (6) is engaged with the limiting structure (71) to achieve fixation of the fan (1) and the back spring (6).

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