Air suction fan for automobile seat

Abstract

The utility model discloses an automobile seat air suction fan which comprises an upper shell, a lower shell, fan blades, a PCB and an air suction connecting piece, the upper shell is connected with the lower shell, an air cavity is formed between the upper shell and the lower shell, the fan blades are rotationally arranged in the air cavity, an air inlet is formed in the upper shell, an air outlet channel is formed in one side of the upper shell and one side of the lower shell, a magnetic ring rotor is coaxially fixed in the fan blades, and the magnetic ring rotor is connected with the PCB. The PCB is installed on the lower shell, a fan stator is fixedly arranged on the PCB and coaxially arranged in the magnetic ring rotor, the air suction connecting piece comprises a rubber suction cup, the rubber suction cup is used for being connected with a ventilation air bag, an air inlet hole is formed in the middle of the rubber suction cup, a connecting sleeve is fixedly arranged on the rubber suction cup, and clamping ribs are arranged on the inner wall of the connecting sleeve. A clamping groove connected with the clamping rib in a clamping mode is formed in the upper shell, and a plurality of hanging lugs are arranged at the end, away from the rubber suction cup, of the connecting sleeve and used for being connected to a hook on the lower shell in a hanging mode. The ventilation effect of the seat can be improved, the noise of the fan is reduced, and the driving comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to an air suction fan for a car seat. Background Art

[0002] With the improvement of living standards, cars have gradually become a means of transportation for the public, and people have higher and higher requirements for car comfort. Among them, the comfort of car seats has the most critical impact on use. More and more manufacturers use seats with ventilation functions, and ventilate the seats by installing fan structures on the seats. At present, how to improve the seat ventilation effect and reduce fan noise is a major research and design direction in this field. Utility Model Content

[0003] The utility model aims to provide a car seat suction fan to solve the problems existing in the above-mentioned prior art, thereby improving the seat ventilation effect, reducing fan noise and improving driving comfort.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a car seat air suction fan, comprising an upper shell, a lower shell, a fan blade, a PCB board and an air suction connector, wherein the upper shell and the lower shell are connected to each other, a wind cavity is formed between the upper shell and the lower shell, the fan blade is rotatably arranged in the wind cavity, an air inlet is arranged on the upper shell, an air outlet channel is arranged on one side of the upper shell and the lower shell, air enters the wind cavity through the air inlet and is then discharged through the air outlet channel, a magnetic ring rotor is coaxially fixed in the fan blade, the PCB board is mounted on the lower shell, and the fan blade is provided with a fan blade. A fan stator is fixedly provided on the PCB board, and the fan stator is coaxially arranged in the magnetic ring rotor. The air suction connector includes a rubber suction cup, and the rubber suction cup is used to be connected to the ventilation air bag. An air inlet hole is provided in the middle of the rubber suction cup. A connecting sleeve is fixedly provided on the rubber suction cup, and a clamping rib is provided on the inner wall of the connecting sleeve. A clamping groove that is clamped and connected to the clamping rib is provided on the upper shell, and a plurality of hanging ears are provided at one end of the connecting sleeve away from the rubber suction cup for hanging on the hook on the lower shell.

[0006] Preferably, the fan blade is an injection-molded part, a central shaft is pre-buried in the middle of the fan blade, and the central shaft is rotatably connected in the wind cavity via a bearing.

[0007] Preferably, the PCB board is provided with a plug pin, the lower shell is provided with a plug-in slot, and the plug pin is located in the plug-in slot.

[0008] Preferably, the PCB board is provided with a plurality of fixing holes, and the lower shell is provided with a plurality of plastic welding posts corresponding to the fixing holes one by one, and the plastic welding posts can pass through the fixing holes and fix the PCB board by plastic welding.

[0009] Preferably, the lower shell is provided with avoidance holes for avoiding welding points between the fan stator and the PCB board.

[0010] Preferably, a plurality of positioning connecting pieces are provided on the lower shell, and positioning holes are provided on the positioning connecting pieces. The fan is fixedly connected to the bracket by means of glue nails passing through the positioning holes and connecting with the bracket.

[0011] Preferably, the magnetic ring rotor comprises an annular iron shell and a magnetic ring fixed on the inner wall of the iron shell, the iron shell is made of pure iron, and the magnetic ring is made of ferrite resin.

[0012] Compared with the prior art, the utility model has achieved the following technical effects:

[0013] The utility model adopts a suction ventilation method, which has lower noise, better comfort and more pleasant driving experience. The rubber suction cup is used to connect the ventilation air bag, which can better and faster suck the hot air on the seat into the ventilation air bag and enter the wind cavity for final discharge. The suction effect is good, which improves the seat ventilation effect and driving comfort. The upper shell is clamped on the clamping rib, and the hanging ear is hung on the hook of the lower shell. The double fixing method is adopted, and the fan structure is more solid, and the rubber suction cup will not fall off, which avoids abnormal fan noise, reduces fan noise, and avoids the phenomenon of reduced fan air volume due to the falling of the rubber suction cup, which can improve the seat ventilation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the exploded structure of the automobile seat suction fan provided by the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the PCB board and the fan stator in the utility model;

[0017] Figure 3 Schematic diagram of the connection structure of the rubber suction cup, the connecting sleeve and the hanging ear in the utility model

[0018] Figure 4It is a schematic diagram of the structure of the lower shell in the utility model;

[0019] Figure 5 This is a schematic diagram of using plastic welding to fix the PCB board in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the rubber nail in the utility model.

[0021] In the figure: 1-upper shell, 2-lower shell, 3-fan blades, 4-PCB board, 5-air suction connector, 6-air inlet, 7-air outlet channel, 8-magnetic ring rotor, 9-fan stator, 10-rubber suction cup, 11-air inlet, 12-connecting sleeve, 13-clamping rib, 14-hanging ear, 15-hook, 16-bearing, 17-pin, 18-plug-in slot, 19-fixing hole, 20-plastic welding column, 21-avoidance hole, 22-positioning connecting piece, 23-positioning hole, 24-plastic nail, 25-PCB board placement slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model aims to provide an automobile seat suction fan to solve the problems existing in the prior art, thereby improving the seat ventilation effect, reducing fan noise and improving driving comfort.

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figure 1-Figure 6As shown, the present embodiment provides a car seat suction fan, including an upper shell 1, a lower shell 2, a fan blade 3, a PCB board 4 and a suction connector 5, the upper shell 1 and the lower shell 2 are connected to each other, a wind cavity is formed between the upper shell 1 and the lower shell 2, the fan blade 3 is rotatably arranged in the wind cavity, an air inlet 6 is arranged on the upper shell 1, and an air outlet channel 7 is arranged on one side of the upper shell 1 and the lower shell 2, the air enters the wind cavity through the air inlet 6 and is then discharged from the air outlet channel 7, a magnetic ring rotor 8 is coaxially fixed in the fan blade 3, the PCB board 4 is installed on the lower shell 2, and the PCB board 4 is fixed A fan stator 9 is fixedly provided, and the fan stator 9 is coaxially arranged in the magnetic ring rotor 8. The air suction connector 5 includes a rubber suction cup 10, and the rubber suction cup 10 is used to connect with the ventilation air bag. An air inlet hole 11 is provided in the middle of the rubber suction cup 10. A connecting sleeve 12 is fixedly provided on the rubber suction cup 10, and a clamping rib 13 is provided on the inner wall of the connecting sleeve 12. A clamping groove that is clamped and connected to the clamping rib 13 is provided on the upper shell 1. A plurality of hanging ears 14 are provided at one end of the connecting sleeve 12 away from the rubber suction cup 10, which is used to be hung on the hook 15 on the lower shell 2.

[0026] The rubber suction cup 10 is used to connect the ventilation bag and the air inlet 11, so that the hot air on the seat surface is sucked into the ventilation bag, and then enters the air cavity, and then discharged from the side air outlet channel 7. The suction ventilation method has lower noise, better comfort, and more pleasant driving experience. The rubber suction cup 10 is used to connect the ventilation bag, so that the hot air on the seat can be better and faster sucked into the ventilation bag and enter the air cavity and finally discharged. The suction effect is good, which improves the seat ventilation effect and driving comfort. Among them, the rubber suction cup 10 is fixed by sewing with the PU film in the ventilation bag. After being fixed in this way, it is firmly installed and not easy to fall off. The upper shell 1 is clamped on the clamping rib 13, and the ear 14 is hung on the hook 15 of the lower shell 2. The double fixing method is adopted, which is more firm, and the rubber suction cup 10 will not fall off, avoiding abnormal noise of the fan, reducing fan noise, and avoiding the phenomenon of reduced air volume of the fan due to the falling of the rubber suction cup 10.

[0027] In this embodiment, the fan blade 3 is an injection molded part, and a central shaft is embedded in the middle of the fan blade 3, and the central shaft is rotatably connected in the wind cavity through a bearing 16. The bearing 16 is a ball bearing, which meets high-precision requirements and can adapt to various extreme conditions.

[0028] In this embodiment, the PCB board 4 is provided with a pin 17, and the lower shell 2 is provided with a plug-in slot 18, and the pin 17 is located in the plug-in slot 18. The pin 17 is used to realize electrical connection with other devices, without connecting wires, which can reduce manufacturing costs.

[0029] In this embodiment, the PCB board 4 is provided with a plurality of fixing holes 19, and the lower shell 2 is provided with a plurality of plastic welding posts 20 corresponding to the fixing holes 19 one by one, and the plastic welding posts 20 can pass through the fixing holes 19 and fix the PCB board 4 by plastic welding. The lower shell 2 is provided with a PCB board placement groove 25, and the PCB board 4 is placed in the PCB board placement groove 25. After the plastic welding posts 20 pass through the fixing holes 19 on the PCB board 4, the upper ends of the plastic welding posts 20 are melted by a plastic welding machine to form mushroom heads, so that the PCB board 4 can be firmly fixed on the lower shell 2, so as to prevent the PCB board 4 from falling off and avoid causing adverse conditions such as abnormal noise of the fan.

[0030] In this embodiment, the lower shell 2 is provided with an avoidance hole 21 for avoiding the welding point between the fan stator 9 and the PCB board 4 .

[0031] In this embodiment, the lower shell 2 is provided with a plurality of positioning connecting pieces 22, and the positioning connecting pieces 22 are provided with positioning holes 23. The fan is fixedly connected to the bracket by means of adhesive nails 24 passing through the positioning holes 23 and connected to the bracket. The fan is fixed by adhesive nails 24 so that it does not shake, avoids abnormal fan noise, and reduces noise. The adhesive nails 24 are made of rubber, and the fan is clamped at position A. Both ends of position A have protrusions so that the fan does not shake easily, avoids fan vibration, and damages the fan; position B is a slot for clamping the bracket. In this way, the fan and the bracket are clamped together, eliminating the need for screw fixation, reducing costs, and being firmly installed.

[0032] In this embodiment, the magnetic ring rotor 8 includes an annular iron shell and a magnetic ring fixed on the inner wall of the iron shell. The iron shell is made of pure iron and the magnetic ring is made of ferrite resin. The magnetic ring made of ferrite resin has good magnetic properties. The magnetic ring rotor 8 is connected to the fan blade 3 and is integrated with the fan blade 3 to meet the high-speed rotation of the fan blade and achieve the air suction effect.

[0033] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A car seat suction fan, characterized in that: The invention comprises an upper shell, a lower shell, a fan blade, a PCB board and an air suction connector, wherein the upper shell and the lower shell are connected to each other, a wind cavity is formed between the upper shell and the lower shell, the fan blade is rotatably arranged in the wind cavity, an air inlet is arranged on the upper shell, an air outlet is arranged on one side of the upper shell and the lower shell, air enters the wind cavity through the air inlet and is then discharged through the air outlet, a magnetic ring rotor is coaxially fixed in the fan blade, the PCB board is mounted on the lower shell, a fan stator is fixed on the PCB board, the fan stator is coaxially arranged in the magnetic ring rotor, the air suction connector comprises a rubber suction cup, the rubber suction cup is used to be connected to a ventilation air bag, an air inlet hole is arranged in the middle of the rubber suction cup, a connecting sleeve is fixed on the rubber suction cup, a clamping rib is arranged on the inner wall of the connecting sleeve, a clamping groove clamped and connected to the clamping rib is arranged on the upper shell, and a plurality of hanging ears are arranged at one end of the connecting sleeve away from the rubber suction cup for hanging on a hook on the lower shell.

2. The automobile seat suction fan according to claim 1, characterized in that: The fan blade is an injection-molded part, a central shaft is pre-buried in the middle of the fan blade, and the central shaft is rotatably connected in the wind cavity via a bearing.

3. The automobile seat suction fan according to claim 1, characterized in that: The PCB board is provided with a plug pin, the lower shell is provided with a plug-in slot, and the plug pin is located in the plug-in slot.

4. The automobile seat suction fan according to claim 1, characterized in that: The PCB board is provided with a plurality of fixing holes, and the lower shell is provided with a plurality of plastic welding posts corresponding to the fixing holes one by one. The plastic welding posts can pass through the fixing holes and fix the PCB board by plastic welding.

5. The automobile seat suction fan according to claim 1, characterized in that: The lower shell is provided with avoidance holes for avoiding the welding points between the fan stator and the PCB board.

6. The automobile seat suction fan according to claim 1, characterized in that: The lower shell is provided with a plurality of positioning connecting pieces, and the positioning connecting pieces are provided with positioning holes. The fan is fixedly connected to the bracket by means of glue nails passing through the positioning holes and connecting with the bracket.

7. The automobile seat suction fan according to claim 1, characterized in that: The magnetic ring rotor comprises an annular iron shell and a magnetic ring fixed on the inner wall of the iron shell. The iron shell is made of pure iron, and the magnetic ring is made of ferrite resin.

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