Fan for air ventilation of car seat

Abstract

This utility model relates to the field of fan equipment technology, specifically a fan for car seat ventilation, including a fan, cable, plug, air outlet, air bag, and loading / unloading mechanism. The air outlet is located on the surface of the fan, the air bag is disposed on the surface of the air outlet, and the loading / unloading mechanism is disposed on the surface of the air bag. The loading / unloading mechanism includes a rubber head, which is fixedly connected to the surface of the air bag. A fixing plate is fixedly connected to the surface of the air outlet. A spring is fixedly connected to the inner wall of the air outlet, and a pressure plate is fixedly connected to the surface of the spring. A bidirectional threaded rod is rotatably connected to the inner wall of the air outlet, and a push plate is threadedly connected to the surface of the bidirectional threaded rod. A worm gear is rotatably connected to the inner wall of the air outlet. This utility model, by setting up a loading / unloading mechanism, allows for quick and labor-saving loading and unloading of the fan and air bag, facilitating maintenance and replacement. The installation also has good stability, preventing the air bag from detaching from the fan, thus effectively improving the convenience of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of fan equipment technology, and in particular to a fan for ventilating car seats. Background Technology

[0002] To improve vehicle comfort, fans and air bags are installed inside car seats to ventilate and cool the seats. In existing technology, the fan is connected to the air bag via a rubber tube. The connection end structure is usually a square rubber T-shaped head, and the interface is welded into a rigid U-shaped plate. The rubber tube T-shaped head is manually bent and forced into the connection plate and tightened. Then the T-shaped structure returns to its shape to achieve a tension effect and realize the connection.

[0003] Existing technologies, such as Chinese Patent Publication No. CN219601013U, disclose a heating and cooling ventilation system for automotive seats, including a fan. The fan includes a volute with an air inlet and an air outlet. A rotating impeller is located inside the volute, and a graphene heating element is also located within the volute. Outside air enters the volute through the air inlet under the action of the impeller. The graphene heating element heats up when energized, and the outside air is converted into hot air by the graphene heating element within the volute and blown out through the air outlet. The volute includes an upper shell and a lower shell, and the graphene heating element is fixed to the upper shell and / or the lower shell by adhesive or fasteners. Alternatively, the air outlet of the volute has an air outlet component, and the graphene heating element is disposed within the air outlet component. By using a graphene heating element within the volute, the fan can blow out cold or hot air by controlling the on / off state of the graphene element. This design also facilitates internal assembly of the fan, and the graphene heating does not produce exhaust gas, making it environmentally friendly. However, this utility model simply describes the connection between the fan and the air bag as a plug-in connection. The simple plug-in structure is prone to falling off due to insufficient pull-out force, resulting in ventilation failure. It is also inconvenient to operate quickly and effortlessly when the air bag needs to be disassembled and replaced.

[0004] To address the issue of inconvenient and effortless assembly / disassembly of car seat ventilation fans to air bags while maintaining sufficient fixation to prevent accidental detachment, existing technologies connect the fan to the air bag via a rubber hose, relying solely on the tension of a T-shaped rubber head for fixation. This requires repeated adjustments of the rubber head during installation to ensure a secure hold, which can easily lead to insufficient pull-out force causing detachment and ventilation failure. Furthermore, it is inconvenient and requires less effort when disassembling and replacing the air bag. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that the fans used for car seat ventilation are not easy to quickly and effortlessly assemble and disassemble from the air bags and maintain sufficient fixation to prevent the air bags from accidentally falling off, and therefore proposes a fan for car seat ventilation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fan for ventilating car seats, comprising a fan, a cable, a plug, an air outlet, an air bag, and a loading and unloading mechanism, wherein the air outlet is opened on the surface of the fan, the air bag is disposed on the surface of the air outlet, and the loading and unloading mechanism is disposed on the surface of the air bag. The loading and unloading mechanism includes a rubber head, which is fixedly connected to the surface of the air bag. A fixing plate is fixedly connected to the surface of the air outlet. A spring is fixedly connected to the inner wall of the air outlet. A pressure plate is fixedly connected to the surface of the spring. A bidirectional threaded rod is rotatably connected to the inner wall of the air outlet. A push plate is threadedly connected to the surface of the bidirectional threaded rod. A worm gear is rotatably connected to the inner wall of the air outlet, and a worm wheel is fixedly connected to the surface of the bidirectional threaded rod. The surfaces of the worm gear and the worm wheel are meshed together. A guide rod is fixedly connected to the inner wall of the air outlet, and the push plate is slidably connected to the surface of the guide rod.

[0007] Furthermore, the surface of the pressure plate is provided with a first inclined groove, the surface of the push plate is provided with a second inclined groove, the first inclined groove and the second inclined groove cooperate with each other, and a soft pad is fixedly connected to the surface of the pressure plate.

[0008] Furthermore, the end of the rubber head near the air outlet is configured in a "T" shape, the pressure plate cooperates with the rubber head, and the fixing plate is configured in a "U" shape, which cooperates with the rubber head.

[0009] Furthermore, the number of springs, pressure plates, and push plates are all in two sets, with the two sets of push plates arranged symmetrically, and the number of springs in each set being two and arranged symmetrically.

[0010] Furthermore, a turntable is fixedly connected to the surface of the worm gear, and the surface of the turntable is provided with anti-slip textures, which are multiple sets and evenly distributed around the circumference.

[0011] Furthermore, the cable is fixedly connected to the surface of the fan, the plug is fixedly connected to the surface of the cable, a cable bundling mechanism is provided on the surface of the cable, the cable bundling mechanism includes a sleeve, the sleeve is sleeved and connected to the surface of the cable, and an mounting plate is fixedly connected to the surface of the sleeve.

[0012] Furthermore, a winding post is fixedly connected to the surface of the mounting plate, and a screw hole is opened on the surface of the winding post, and a screw is threadedly connected to the surface of the screw hole.

[0013] Furthermore, the number of winding posts, screw holes, and screws are all four sets, and a limit plate is fixedly connected to the surface of the screw.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, by setting up a loading and unloading mechanism, during installation, the rubber head is first inserted into the air outlet. Then, the worm gear is rotated by the turntable, causing the worm wheel to drive the bidirectional threaded rod to rotate. This causes the two sets of push plates to move in opposite directions along the guide rod. When the push plates move to contact the pressure plate, the pressure plate is pushed downward by the first and second inclined grooves. While tightening the spring, the rubber head is pressed against the inside of the fixed plate, thus realizing the installation of the air bag. During disassembly, simply reverse the turntable so that the two sets of push plates move towards each other. Under the spring's rebound, the pressure plate moves upward and no longer presses the rubber head. Then, the rubber head can be pulled out from the air outlet. The self-locking function of the worm gear ensures sufficient stability in the connection of the rubber head. By setting up the loading and unloading mechanism, the fan and air bag can be loaded and unloaded quickly and effortlessly, facilitating maintenance and replacement. The installation has good stability, preventing the air bag from detaching from the fan, thus effectively improving the convenience of the equipment.

[0015] 2. In this utility model, by setting a cable-binding mechanism, the mounting plate can be installed in an appropriate position using screws and screw holes in conjunction with preset mounting holes, which plays a role in properly constraining the cable and preventing it from being bent or moving arbitrarily. If the cable is too long, part of it can be wound around the winding post and limited by the limiting plate. By setting a cable-binding mechanism, the cable can be properly constrained to prevent it from being bent or moving arbitrarily, and longer cables can also be wound up, which effectively improves the convenience of the equipment. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a fan for ventilating car seats; Figure 2 This utility model provides a partially enlarged structural diagram of the loading and unloading mechanism in a fan used for car seat ventilation; Figure 3 This utility model provides another enlarged structural diagram of the loading and unloading mechanism in a fan for car seat ventilation; Figure 4 This utility model provides a partially enlarged structural diagram of the wiring harness mechanism in a fan used for car seat ventilation. Figure 5 This invention presents a partially enlarged schematic diagram of the wiring harness mechanism in a fan used for car seat ventilation.

[0017] Legend: 1. Fan; 2. Cable; 3. Plug; 4. Air outlet; 5. Air bag; 6. Loading and unloading mechanism; 601. Rubber head; 602. Fixing plate; 603. Spring; 604. Pressure plate; 605. Double-sided threaded rod; 606. Push plate; 607. Worm gear; 608. Worm wheel; 609. Guide rod; 610. Inclined groove one; 611. Inclined groove two; 612. Soft pad; 613. Turntable; 614. Anti-slip texture; 7. Cable harnessing mechanism; 71. Sleeve; 72. Mounting plate; 73. Winding post; 74. Screw hole; 75. Screw; 76. Limiting plate. Detailed Implementation

[0018] Please see Figures 1-5 This utility model provides a technical solution: a fan for car seat ventilation, including a fan 1, a cable 2, a plug 3, an air outlet 4, an air bag 5, and a loading and unloading mechanism 6. The air outlet 4 is opened on the surface of the fan 1, the air bag 5 is disposed on the surface of the air outlet 4, and the loading and unloading mechanism 6 is disposed on the surface of the air bag 5.

[0019] The specific setup and function of its loading and unloading mechanism 6 and wire harness mechanism 7 will be explained below.

[0020] In this implementation scheme: the loading and unloading mechanism 6 includes a rubber head 601, which is fixedly connected to the surface of the air bag 5. A fixing plate 602 is fixedly connected to the surface of the air outlet 4. A spring 603 is fixedly connected to the inner wall of the air outlet 4. A pressure plate 604 is fixedly connected to the surface of the spring 603. A bidirectional threaded rod 605 is rotatably connected to the inner wall of the air outlet 4. A push plate 606 is threadedly connected to the surface of the bidirectional threaded rod 605. A worm gear 607 is rotatably connected to the inner wall of the air outlet 4. A worm wheel 608 is fixedly connected to the surface of the bidirectional threaded rod 605. The surfaces of the worm gear 607 and the worm wheel 608 are meshed. A guide rod 609 is fixedly connected to the inner wall of the air outlet 4. The push plate 606 is slidably connected to the surface of the guide rod 609.

[0021] The effects achieved by the above components are as follows: the rubber head 601 is designed to be soft and elastic, making it easy to insert into the air outlet 4, and to provide sufficient sealing after being pressed; the fixing plate 602 is designed to prevent the rubber head 601 from falling out after being inserted into the air outlet 4; the spring 603 is designed to utilize its rebound effect to facilitate the upward reset of the pressure plate 604; the pressure plate 604 is designed to facilitate the pressing of the rubber head 601 to fix the air bag 5; and the bidirectional threaded rod 605 and the push plate 60 are also provided. 6 is designed so that when the bidirectional threaded rod 605 rotates, the two sets of push plates 606 can move in opposite directions or towards each other. The worm gear 608 and worm 607 are provided so that when the worm 607 is rotated, the worm gear 608 can drive the bidirectional threaded rod 605 to rotate. The self-locking function of the worm gear 608 and worm 607 is used to prevent the bidirectional threaded rod 605 from rotating arbitrarily. The guide rod 609 is provided to limit and guide the movement of the push plate 606, preventing it from rotating with the bidirectional threaded rod 605.

[0022] Specifically, the surface of the pressure plate 604 is provided with a first inclined groove 610, the surface of the push plate 606 is provided with a second inclined groove 611, the first inclined groove 610 and the second inclined groove 611 cooperate with each other, and a soft pad 612 is fixedly connected to the surface of the pressure plate 604.

[0023] The effects achieved by the above components are as follows: the inclined groove 610 and the inclined groove 611 are provided so that when the push plate 606 moves to contact the pressure plate 604, it can be pushed down to press the rubber head 601 more effectively; the soft pad 612 is provided to prevent the pressure plate 604 from making hard contact with the rubber head 601 and causing damage.

[0024] Specifically, the end of the rubber head 601 near the air outlet 4 is set in a "T" shape, the pressure plate 604 cooperates with the rubber head 601, and the fixing plate 602 is set in a "U" shape, which cooperates with the rubber head 601.

[0025] The effects achieved by the above components are as follows: the end of the rubber head 601 near the air outlet 4 is set in a "T" shape to improve the sealing performance, and the fixing plate 602 is set in a "U" shape to prevent the rubber head 601 from easily falling off.

[0026] Specifically, there are two sets of springs 603, pressure plates 604 and push plates 606, with the two sets of push plates 606 arranged symmetrically, and two springs 603 in each set arranged symmetrically.

[0027] The effects achieved by the above components are as follows: setting two sets of pressure plates 604 and push plates 606 is to improve the clamping effect; setting two sets of springs 603, with two springs in each set, is to increase structural stability.

[0028] Specifically, a turntable 613 is fixedly connected to the surface of the worm gear 607. The surface of the turntable 613 is provided with anti-slip textures 614. The anti-slip textures 614 are in multiple sets and are evenly distributed around the circumference.

[0029] The effects achieved by the above components are as follows: the turntable 613 is set to facilitate the rotation of the worm gear 607, and the anti-slip texture 614 is set to increase friction and prevent slippage when rotating the turntable 613.

[0030] Specifically, cable 2 is fixedly connected to the surface of fan 1, plug 3 is fixedly connected to the surface of cable 2, cable 2 is provided with a cable bundling mechanism 7, the cable bundling mechanism 7 includes a sleeve 71, the sleeve 71 is sleeved and connected to the surface of cable 2, and a mounting plate 72 is fixedly connected to the surface of sleeve 71.

[0031] The aforementioned components achieve the following effects: the sleeve 71 is provided to facilitate movement on the surface of the cable 2, and the mounting plate 72 is provided to facilitate installation and fixation by fitting into the pre-set mounting holes, thereby constraining the cable 2 at an appropriate position and preventing it from bending, being damaged, or moving arbitrarily.

[0032] Specifically, a winding post 73 is fixedly connected to the surface of the mounting plate 72, and a screw hole 74 is opened on the surface of the winding post 73. A screw rod 75 is threadedly connected to the surface of the screw hole 74.

[0033] The effects achieved by the above components are as follows: the winding post 73 is provided so that when the cable 2 is too long, the excess cable 2 can be wound around it; the screw hole 74 and the screw 75 are provided so that the mounting plate 72 can be fixed by matching the mounting hole.

[0034] Specifically, there are four sets of winding posts 73, screw holes 74 and screws 75, and a limit plate 76 is fixedly connected to the surface of the screw 75.

[0035] The effects achieved by the above components are as follows: setting four sets of winding posts 73 is to increase the winding length; setting four sets of screw holes 74 and screws 75 is to increase structural stability; and setting a limiting plate 76 is to limit the cable 2 after it is wound on the winding posts 73, so as to prevent it from falling off.

[0036] Working principle: By setting up the loading and unloading mechanism 6, during installation, the rubber head 601 is first inserted into the air outlet 4. Then, the turntable 613 rotates the worm gear 607, causing the worm wheel 608 to drive the bidirectional threaded rod 605 to rotate. This causes the two sets of push plates 606 to move in opposite directions along the guide rod 609. When the push plate 606 moves to contact the pressure plate 604, the inclined groove 1 610 and inclined groove 2 611 push the pressure plate 604 downward, tightening the spring 603 and pressing the rubber head 601 against the inside of the fixed plate 602, thus realizing the installation of the air bag 5. For disassembly, simply reverse the turntable. 613, causing the two sets of push plates 606 to move towards each other, and under the rebound action of the spring 603, the pressure plate 604 moves upward, no longer pressing the rubber head 601. Then, the rubber head 601 can be pulled out from the air outlet 4. The self-locking function of the worm gear 608 and worm 607 ensures sufficient stability in the connection of the rubber head 601. By setting the loading and unloading mechanism 6, the fan 1 and the air bag 5 can be loaded and unloaded quickly and effortlessly, facilitating maintenance and replacement. The installation has good stability, preventing the air bag 5 from detaching from the fan 1, thus effectively improving the convenience of the equipment.

[0037] Furthermore, by setting up the cable bundling mechanism 7, the mounting plate 72 can be installed in an appropriate position using the screw 75 and screw hole 74 in conjunction with the preset mounting holes. This serves to properly constrain the cable 2, preventing it from being bent or moving arbitrarily. If the cable 2 is too long, part of it can be wound around the winding post 73 and limited by the limiting plate 76. By setting up the cable bundling mechanism 7, the cable 2 can be properly constrained, preventing it from being bent or moving arbitrarily. It can also rewind longer cables 2, thus effectively improving the convenience of the equipment.

Claims

1. A fan for ventilating car seats, comprising a fan (1), a cable (2), a plug (3), an air outlet (4), an air bag (5), and a loading / unloading mechanism (6), characterized in that: The air outlet (4) is located on the surface of the fan (1), the air bag (5) is located on the surface of the air outlet (4), and the loading and unloading mechanism (6) is located on the surface of the air bag (5). The loading and unloading mechanism (6) includes a rubber head (601), which is fixedly connected to the surface of the air bag (5). A fixing plate (602) is fixedly connected to the surface of the air outlet (4). A spring (603) is fixedly connected to the inner wall of the air outlet (4). A pressure plate (604) is fixedly connected to the surface of the spring (603). A bidirectional threaded rod (605) is rotatably connected to the inner wall of the air outlet (4). A push plate (606) is threadedly connected to the surface of the bidirectional threaded rod (605). The inner wall of the air outlet (4) is rotatably connected to a worm (607), and the surface of the bidirectional threaded rod (605) is fixedly connected to a worm wheel (608). The surfaces of the worm (607) and the worm wheel (608) are meshed. The inner wall of the air outlet (4) is fixedly connected to a guide rod (609), and the surface of the push plate (606) is slidably connected to the guide rod (609).

2. The fan for ventilating car seats according to claim 1, characterized in that: The surface of the pressure plate (604) is provided with a first inclined groove (610), and the surface of the push plate (606) is provided with a second inclined groove (611). The first inclined groove (610) and the second inclined groove (611) cooperate with each other, and a soft pad (612) is fixedly connected to the surface of the pressure plate (604).

3. A fan for ventilating car seats according to claim 1, characterized in that: The rubber head (601) is T-shaped at one end near the air outlet (4), the pressure plate (604) cooperates with the rubber head (601), the fixing plate (602) is U-shaped, and the fixing plate (602) cooperates with the rubber head (601).

4. A fan for ventilating car seats according to claim 1, characterized in that: The number of springs (603), pressure plates (604) and push plates (606) are all in two sets, and the two sets of push plates (606) are symmetrically arranged. The number of springs (603) in each set is two and they are symmetrically arranged.

5. A fan for ventilating car seats according to claim 1, characterized in that: A turntable (613) is fixedly connected to the surface of the worm gear (607). The surface of the turntable (613) is provided with anti-slip textures (614). The anti-slip textures (614) are in multiple sets and are evenly distributed around the circumference.

6. A fan for ventilating car seats according to claim 1, characterized in that: The cable (2) is fixedly connected to the surface of the fan (1), the plug (3) is fixedly connected to the surface of the cable (2), the surface of the cable (2) is provided with a wire harness mechanism (7), the wire harness mechanism (7) includes a sleeve (71), the sleeve (71) is sleeved and connected to the surface of the cable (2), and the surface of the sleeve (71) is fixedly connected with an mounting plate (72).

7. A fan for ventilating car seats according to claim 6, characterized in that: The mounting plate (72) is fixedly connected to a winding post (73), and the surface of the winding post (73) is provided with a screw hole (74), and the surface of the screw hole (74) is threaded with a screw rod (75).

8. A fan for ventilating car seats according to claim 7, characterized in that: The number of winding posts (73), screw holes (74) and screws (75) are all four sets, and the surface of the screws (75) is fixedly connected to a limiting disk (76).

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