Fan device for seat ventilation

Abstract

The utility model discloses a fan device for seat ventilation, which comprises a fixed seat and a cooling fan, the cooling fan comprises a base, a stator module, a rotor module and an upper cover, the stator module comprises a circuit board and a stator winding, the circuit board or the stator winding is provided with a first buckle matched with the base, and the upper cover is provided with a second buckle matched with the base. The rotor module comprises an impeller, a rotating shaft and a plurality of permanent magnets, the front end of the rotating shaft sequentially extends out of the stator module and the base and is connected with a retaining ring, the upper cover is provided with a second buckle matched with the base, and the fixed seat is provided with a third buckle matched with the upper cover. The fixing base is further provided with a fourth buckle matched with a seat. According to the design, the fan is stably fixed to the seat in a buckle connection mode, then the fan operates to generate suction force, external cold air is gathered, hot air in the seat is blown away through the air pipe, and the ventilation and heat dissipation effects of the seat are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a fan device for seat ventilation. Background Art

[0002] With the improvement of living standards and the development of the automobile industry, more and more people choose cars as their means of transportation. Although air conditioning can maintain the temperature inside the car, since the driver and passengers are in close contact with the seats for a long time in the car, the air in the contact area is not circulated, which makes people feel uncomfortable. The utility model patent with authorization announcement number CN220308750U discloses a seat cushion ventilation system. It includes a cooling fan and an air outlet duct, the cooling fan is provided with a vent, a first clamping member is provided around the vent, and the outlet of the air outlet duct is provided with a second clamping member, the first clamping member and the second clamping member are engaged with each other, the air outlet duct and the cooling fan are detachably connected, the second clamping member rotates relative to the first clamping member, and the air outlet duct is retractable. By setting an air outlet duct with adjustable direction and length, this solution can be adaptively adjusted to different seat cushions, thereby saving the time and material costs of modifying and manufacturing the air outlet duct mold. However, the cooling fan of this solution is fixed to the seat with bolts, which is very inconvenient to install. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a fan device for seat ventilation, which uses a snap connection method to firmly fix the fan on the seat. Then the fan runs to generate suction, which gathers the cold air from the outside, and blows the hot air inside the seat away through the air duct, thereby achieving the ventilation and heat dissipation effect of the seat.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a fan device for seat ventilation, including a fixing base and a cooling fan, the cooling fan including a base, a stator module, a rotor module and an upper cover, the stator module including a circuit board and a stator winding, the stator winding being fixed on the circuit board, the circuit board or the stator winding being provided with a first clip that cooperates with the base, the rotor module including an impeller, a rotating shaft and a plurality of permanent magnets, the rotating shaft and the plurality of permanent magnets being fixed on the impeller, the front end of the rotating shaft extending out of the stator module and the base in turn and being connected with a buckle, the front end face of the upper cover being provided with a second clip that cooperates with the base, the front end face of the fixing base being provided with a third clip that cooperates with the upper cover, and the rear end face of the fixing base being provided with a fourth clip that cooperates with the seat. This solution is based on the base. The stator module is installed on the base through the first buckle, the rotating shaft of the rotor module passes through the stator module and the base, and is fixed with a buckle. The upper cover is buckled with the second buckle to form a complete fan. The fixing seat is matched with the buckle position on the upper cover using the third buckle to form an integrated whole. Finally, it is installed on the seat through the fourth buckle. The fan then generates suction when it runs, gathering the cold air from the outside, and the hot air inside the seat is blown away through the air duct, achieving the ventilation and heat dissipation effect of the seat.

[0005] Furthermore, the base and the stator winding are respectively provided with a first bearing and a second bearing connected to the rotating shaft, wherein the first bearing and the second bearing are preferably ball bearings.

[0006] Furthermore, the base is made of alloy and has sufficient strength and rigidity to ensure that the product has a good service life.

[0007] Furthermore, a straight spring or a corrugated spring sheet is provided between the stator module and the rotor module. The straight spring or the corrugated spring sheet is sleeved on the rotating shaft. The straight spring and the corrugated spring sheet can effectively reduce vibration and ensure the stable operation of the fan.

[0008] Furthermore, a duct joint is provided on the rear end surface of the fixing seat.

[0009] The beneficial effects of the present invention are: the design is simple in structure and easy to assemble and use. It perfectly matches the fan and seat structure, and the fan is firmly fixed to the seat using a buckle connection. The fan then generates suction to gather cold air from the outside, and the hot air inside the seat is blown away through the air duct, achieving a ventilation and heat dissipation effect for the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is an exploded view of the structure of Example 1 of the present utility model;

[0011] Figure 2 This is an exploded view of the structure of Example 2 of the present utility model. DETAILED DESCRIPTION

[0012] The following further describes the present invention in conjunction with the accompanying drawings. The specific embodiments are only representative embodiments of the present invention, and the specific methods, devices, conditions, materials, etc. exemplified therein are not intended to limit the present invention or the corresponding specific embodiments.

[0013] Example 1

[0014] like Figure 1 As shown, a fan device for seat ventilation includes a fixing base 5 and a cooling fan. The cooling fan includes a base 1, a stator module 2, a rotor module 3, and an upper cover 4. The stator module 2 includes a circuit board and a stator winding. The stator winding is fixed to the circuit board. The circuit board or the stator winding is provided with a first clip 20 that cooperates with the base 1. The rotor module 3 includes an impeller, a rotating shaft 30, and a plurality of permanent magnets. The rotating shaft 30 and the plurality of permanent magnets are fixed to the impeller. The front end of the rotating shaft 30 passes through the corrugated spring piece 6, the stator module 2, and the base 1 in sequence and passes through a connecting buckle 31. The base 1 and the stator winding 2 are respectively provided with a first bearing 11 and a second bearing 21 connected to the rotating shaft. The front end surface of the upper cover 4 is provided with a second clip 41 that cooperates with the base 1. The front end surface of the fixing base 5 is provided with a third clip 51 that cooperates with the upper cover. The rear end surface of the fixing base 5 is provided with a fourth clip 52 that cooperates with the seat and a duct connector 53. The base 1 is also provided with a power supply connector. In this embodiment, the first, second, and third clips 20, 41, 51 are all constructed of elastic rubber blocks, while the fourth clip 52 is a clip with a hooking function. The first and second bearings 11, 12 are preferably ball bearings. The base 1 is constructed of an alloy, providing sufficient strength and rigidity to ensure a long product life.

[0015] This solution is based on the base 1, and the fixing base 5 connects the seat and the cooling fan. The stator module 2 is mounted on the base 1 using the first buckle 20. The rotating shaft 30 of the rotor module 3 is then passed through the stator module 2 and the base 1 and secured with a buckle 31. The upper cover 4 is then fastened with the second buckle 41 to form the complete fan. The fixing base 5 is then matched with the buckle on the upper cover 4 using the third buckle 51 to form a whole. Finally, the fan is mounted on the seat using the fourth buckle 52, and the air duct is connected to the air duct connector 53. The fan then generates suction, drawing in cool air from the outside, and the hot air inside the seat is blown away through the air duct, achieving ventilation and cooling effects for the seat.

[0016] Example 2

[0017] like Figure 2As shown, a fan device for seat ventilation includes a fixing base 5 and a cooling fan. The cooling fan includes a base 1, a stator module 2, a rotor module 3, and an upper cover 4. The structure of this embodiment 2 is similar to that of embodiment 1, except that the size, shape of the stator and impeller, and the shape of the opening in the upper cover are slightly adjusted according to actual conditions. The corrugated spring 6 on the rotating shaft 30 is replaced with a straight spring. The remaining structure is not described in detail.

[0018] The above description is only a preferred embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. In other words, any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the utility model description are still within the scope of the present utility model patent.

Claims

1. A fan device for seat ventilation, characterized in that: It includes a fixing base and a cooling fan, and the cooling fan includes a base, a stator module, a rotor module and an upper cover. The stator module includes a circuit board and a stator winding, and the stator winding is fixed on the circuit board. The circuit board or the stator winding is provided with a first buckle that cooperates with the base. The rotor module includes an impeller, a rotating shaft and a plurality of permanent magnets. The rotating shaft and the plurality of permanent magnets are fixed on the impeller. The front end of the rotating shaft extends out of the stator module and the base in turn and is connected with a buckle. The front end face of the upper cover is provided with a second buckle that cooperates with the base, the front end face of the fixing base is provided with a third buckle that cooperates with the upper cover, and the rear end face of the fixing base is provided with a fourth buckle that cooperates with the seat.

2. A fan device for seat ventilation according to claim 1, characterized in that: The base and the stator winding are respectively provided with a first bearing and a second bearing connected to the rotating shaft.

3. A fan device for seat ventilation according to claim 2, characterized in that: The first bearing and the second bearing are ball bearings.

4. The fan device for seat ventilation according to claim 1, characterized in that: The base is made of alloy.

5. A fan device for seat ventilation according to claim 1, characterized in that A straight spring or a corrugated spring piece is also provided between the stator module and the rotor module, and the straight spring or the corrugated spring piece is sleeved on the rotating shaft.

6. A fan device for seat ventilation according to claim 1, characterized in that The rear end surface of the fixing seat is also provided with an air duct joint.

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