Ventilated cushion
By designing a functional layer in the ventilated seat cushion and simultaneously controlling the fan, a simple installation and low-cost ventilation and cooling effect are achieved, solving the problem of high cost of existing seats.
Patent Information
- Application Number
- CN202422826255.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The existing control devices and electronic components of ventilated seats are complex to install, resulting in high costs and preventing their widespread adoption.
A ventilated seat cushion was designed, which uses a functional layer including a first shell and a second shell, with an embedded controller and a fan connected by a wiring harness groove to achieve synchronous operation of the fan and exhaust of heat through the air duct.
With its simple structure, easy installation, and low cost, it achieves effective ventilation and cooling, solving the problem of high cost in existing technologies.
Smart Images
Figure CN223503928U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of daily necessities, especially to a ventilated cushion. BACKGROUND
[0002] The cushion is a kind of seat with backrest, some with armrest, and the installation and use of the cushion can be classified into child safety cushion, airport cushion, car cushion, bus cushion and family cushion, which can provide support and comfort for people, so that people can sit more comfortably;
[0003] The prior art has the following problems: when a person sits on the cushion for a long time, heat will be generated between the person and the cushion, especially in summer, and if the heat cannot be discharged, a stuffy feeling will be caused, which greatly reduces the comfort of the cushion, and the stuffy feeling can also cause physical problems of the user, therefore, there are ventilated seats on the market, but the control device and the installation mode of electronic devices of the ventilated seat under the prior art are relatively complex, which causes the cost to be high, and the ventilated seat cannot be popularized in large quantities, therefore, it is necessary to develop a ventilated seat with low cost.
[0004] Therefore, a ventilated cushion is provided to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] The utility model provides a ventilated cushion to solve the technical problem in the above background art.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a ventilated cushion, comprising a fixed layer and a functional layer, the functional layer is sewn in the fixed layer, the functional layer comprises a first shell, the first shell is provided with a connecting part at the bottom, the second shell is fixedly installed on the first shell through the connecting part at the bottom, the first shell, the connecting part and the second shell are sewn inside the fixed layer, a first installation groove is formed in the back of the first shell, a second installation groove is formed in the back of the second shell, the controller and the first air fan are respectively embedded and installed in the first installation groove, the air inlet end of the first air fan penetrates the bottom of the first installation groove, the output end of the controller penetrates the wire harness groove formed in the first installation groove, the wire harness groove is formed in the second installation groove through the top of the first shell, the connecting part and the second shell, the second air fan is embedded and installed in the second installation groove, and the air inlet end of the second air fan penetrates the bottom of the second installation groove.
[0007] Preferably, one end of the wire harness groove extends and is formed in the input end of the first air fan, and the other end extends and is formed in the input end of the second air fan, and the output cable of the controller is electrically connected with the first air fan and the second air fan through the wire harness groove.
[0008] Preferably, upper, lower and right end exhaust ports of the first air fan are respectively provided with first, second and third air ducts in the first installation slot, one ends of the first and second air ducts away from the exhaust port of the first air fan are penetrated through the inner wall of the first installation slot and the inner wall of the fixed layer and communicated with the outside, and one end of the third air duct away from the exhaust port of the first air fan is penetrated through the bottom of the first installation slot, the bottom of the connecting part and the inner wall of the fixed layer and communicated with the outside.
[0009] Preferably, upper, lower and right end exhaust ports of the second air fan are respectively provided with fourth, fifth and sixth air ducts in the second installation slot, one ends of the fourth, fifth and sixth air ducts away from the exhaust port of the second air fan are penetrated through the inner wall of the second installation slot and the inner wall of the fixed layer and communicated with the outside.
[0010] Preferably, the first air fan and the second air fan are provided with protective covers outside.
[0011] Preferably, the upper end of the front surface of the fixed layer is provided with a first magic tape, and the middle part is provided with a first through hole, the upper end of the front surface of the fixed layer is detachably connected with the back layer through the first magic tape, and the first through hole corresponds to the first air fan penetrating the inner bottom of the first installation slot.
[0012] Preferably, the lower end of the front surface of the fixed layer is provided with a second magic tape, and the middle part is provided with a second through hole, the lower end of the front surface of the fixed layer is detachably connected with the cushion layer through the second magic tape, and the second through hole corresponds to the second air fan penetrating the inner bottom of the second installation slot.
[0013] Preferably, the back layer comprises a first pad body, the first pad body is detachably connected with the upper end of the front surface of the fixed layer through a first magic tape, the front surface of the first pad body is provided with a first air-permeable layer, the inside of the first pad body is communicated with the outside through the first air-permeable layer, and the middle part of the back of the first pad body is provided with a first corresponding hole.
[0014] Preferably, the cushion layer comprises a second pad body, the second pad body is detachably connected with the lower end of the front surface of the fixed layer through a second magic tape, the top of the second pad body is provided with a second air-permeable layer, the inside of the second pad body is communicated with the outside through the second air-permeable layer, and the middle part of the back of the second pad body is provided with a second corresponding hole.
[0015] Preferably, the first corresponding hole, the first through hole and the air inlet end of the first air fan correspond to each other, and the second corresponding hole, the second through hole and the air inlet end of the second air fan correspond to each other.
[0016] The utility model discloses the beneficial effect that:
[0017] This utility model is provided with a functional layer, which includes a first housing and a second housing. The back of the first housing and the second housing are respectively provided with a first mounting groove and a second mounting groove. A controller and a first fan are installed in the first mounting groove. The controller output cable is connected to the first fan and the second fan through a wire harness groove, thereby controlling the operation of the first fan and the second fan. When the ventilation function needs to be activated, the controller sends an electrical signal to make the first fan and the second fan run.
[0018] The air inlet of the first fan corresponds to the first corresponding hole and the first through hole. The heat generated on the back of the person will be drawn out through the first fan from the first corresponding hole, the first through hole and the first breathable layer to achieve the effect of ventilation and cooling. The heat drawn in will be discharged through the first air duct, the second air duct and the third air duct.
[0019] The second fan corresponds to the second corresponding hole and the second through hole. The heat generated by the buttocks will be drawn out through the second fan from the second corresponding hole, the second through hole and the second breathable layer to achieve the effect of ventilation and cooling. The heat drawn in is discharged through the fourth air duct, the fifth air duct and the sixth air duct.
[0020] This utility model has the advantages of simple structure, easy installation, low cost and good ventilation performance. It solves the problem that the installation of control devices and electronic components of ventilated seats under the existing technology is relatively complicated, which leads to high costs and prevents large-scale popularization. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the structure of the fixed layer enclosing the functional layer of this utility model;
[0023] Figure 3 This is a schematic diagram of the functional layer of this utility model;
[0024] Figure 4 This is a schematic diagram of the internal structure of the first mounting slot of this utility model;
[0025] Figure 5 This is a utility model Figure 4 Enlarged structural diagram at point A in the middle.
[0026] Figure 6 This is a utility model Figure 4 Enlarged structural diagram at point B.
[0027] Figure 7 This is a schematic diagram of the internal structure of the second mounting slot of this utility model.
[0028] Figure 8 This is a front structural diagram of the functional layer after the fixing layer of this utility model is wrapped.
[0029] Figure 9 This is a structural schematic diagram of the backrest layer and seat cushion layer of this utility model.
[0030] Figure 10 This is a schematic diagram of the backrest layer of this utility model.
[0031] Figure 11 This is a schematic diagram of the structure of the backrest layer of this utility model.
[0032] Figure 12 This is a schematic diagram of the structure of the cushion layer of this utility model.
[0033] Figure 13 This is a schematic diagram of the structure of the back of the seat cushion layer of this utility model.
[0034] The components are: fixed layer-1, backrest layer-2A, seat cushion layer-2B, functional layer-3, first mounting slot-31, controller-32, first fan-33, wiring harness slot-34, second mounting slot-35, second fan-36, first air duct-331, second air duct-332, third air duct-333, fourth air duct-361, fifth air duct-362, sixth air duct-363, first housing-311, connecting part-312, second housing-313, first Velcro-1A, first through hole-1B, second Velcro-3A, second through hole-3B, first pad-2A1, first breathable layer-2A2, first corresponding hole-2A3, second pad-2B1, and second breathable layer-2B2. Detailed Implementation
[0035] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.
[0036] like Figures 1-7As shown, this utility model provides a ventilated seat cushion, including a fixing layer 1 and a functional layer 3. The functional layer 3 is sewn inside the fixing layer 1 and is used to enable the seat cushion to ventilate. The fixing layer 1 is sewn and wrapped around the outside of the functional layer 3, making the overall seat cushion more aesthetically pleasing and ensuring that the functional layer 3 is not exposed. In this embodiment, the fixing layer 1 is formed of a sealed, airtight textile fabric. When the functional layer 3 is working, it needs to dissipate the absorbed heat. The sealed, airtight textile fabric of the fixing layer 1 prevents the heat inside the functional layer 3 from being dissipated through the fixing layer 1 to the surface in contact with the human body and the outside. It should be noted that one or more sets of fixing straps can be sewn or installed on the outside of the fixing layer 1 to allow ventilation. The wind-resistant seat cushion can be fixed to other devices, such as seats, car seat cushions, etc.; the functional layer 3 includes a first housing 311, the bottom of the first housing 311 is provided with a connecting part 312, the functional layer 3 includes a first housing 311, the bottom of the first housing 311 is fixedly installed with a second housing 313 through the connecting part 312, the first housing 311, the connecting part 312 and the second housing 313 are sewn into the inside of the fixing layer 1, the first housing 311, the second housing 313 and the connecting part 312 together form a housing for installation, which serves the purpose of installation, the back of the first housing 311 is provided with a first mounting groove 31, the first mounting groove 31 is used for installation and connection, the back of the second housing 313 is provided with a second mounting groove 35, ... The second mounting slot 35 operates on the same principle as the first mounting slot 31, both used for installation and connection, and therefore will not be described in detail. The first mounting slot 31 contains a controller 32 and a first fan 33. The air inlet of the first fan 33 penetrates the bottom of the first mounting slot 31, allowing it to absorb heat generated on the back of the person. It should be noted that the controller 32 is a master control device that controls the starting, speed adjustment, braking, and reversing of the equipment by changing the wiring of the main circuit or control circuit and changing the resistance value in the circuit according to a predetermined sequence. It should also have a protective shell to protect its internal circuitry from damage. This is existing technology. In this embodiment, it is used to control the first fan 33 and the second fan. When 36 is activated, both the first fan 33 and the second fan 36 are suction fans. The output end of the controller 32 is provided with a wire harness groove 34 through the first mounting groove 31. The bottom of the wire harness groove 34 passes through the first housing 311, the connecting part 312, and the top of the second housing 313 and is opened in the second mounting groove 35. The second fan 36 is embedded in the second mounting groove 35. The air intake end of the second fan 36 passes through the bottom of the second mounting groove 35. Its installation position allows the second fan 36 to absorb the heat generated by the buttocks. It should be noted that the ventilated seat cushion provided in this embodiment can be applied to various applications such as ordinary seats, office seats, car seats, sofas, beds, cushions, and outdoor camping mats.
[0037] One end of the wiring harness groove 34 extends to the input terminal of the first fan 33, and the other end extends to the input terminal of the second fan 36. The output cable of the controller 32 is electrically connected to the first fan 33 and the second fan 36 through the wiring harness groove 34. The output cable of the controller 32 is arranged in the wiring harness groove 34 and connected to the first fan 33 and the second fan 36 along the wiring harness groove 34, thereby realizing the purpose of controlling the first fan 33 and the second fan 36 through the controller 32.
[0038] The first fan 33 has a first air duct 331, a second air duct 332, and a third air duct 333 respectively opened in the first mounting groove 31 at its upper, lower, and right exhaust ports. The ends of the first air duct 331 and the second air duct 332 away from the exhaust ports of the first fan 33 pass through the inner wall of the first mounting groove 31 and the inner wall of the fixing layer 1 and are connected to the outside. The end of the third air duct 333 away from the exhaust ports of the first fan 33 passes through the bottom of the first mounting groove 31, the bottom of the connecting part 312, and the inner wall of the fixing layer 1 and is connected to the outside. The first fan 33 absorbs the heat generated by the back of the person and, driven by the fan blades, discharges the heat into the first air duct 331, the second air duct 332, and the third air duct 333. The heat is then discharged to the outside through the first air duct 331, the second air duct 332, and the third air duct 333, thereby achieving the purpose of removing heat.
[0039] The second fan 36 has a fourth air duct 361, a fifth air duct 362, and a sixth air duct 363 respectively opened at the upper, lower, and right exhaust ports of the second fan 36 in the second mounting groove 35. The ends of the fourth air duct 361, the fifth air duct 362, and the sixth air duct 363 away from the exhaust port of the second fan 36 penetrate through the inner wall of the second mounting groove 35 and the inner wall of the fixing layer 1 and are connected to the outside. The operating principle of the second fan 36 is the same as that of the first fan 33. The heat absorbed will be discharged into the fourth air duct 361, the fifth air duct 362, and the sixth air duct 363 under the drive of the fan blades, and the heat will be discharged to the outside through the fourth air duct 361, the fifth air duct 362, and the sixth air duct 363, thereby achieving the purpose of removing heat.
[0040] Both the first fan 33 and the second fan 36 are equipped with protective covers on their outer sides. By setting up protective covers, the first fan 33 and the second fan 36 can be well protected, making them less susceptible to damage from external forces, increasing their service life and reducing the maintenance costs for consumers.
[0041] It should be noted that the backs of the controller 32, the first fan 33, the wiring harness 34, the first air duct 331, the second air duct 332, and the third air duct 333 installed or opened in the first mounting slot 31 should form a horizontal plane so that the fixing layer 1 can be more flat and beautiful when wrapped. In this embodiment, the empty space in the first mounting slot 31 can be filled with a filling block to support the human body and increase the overall comfort of the seat cushion.
[0042] It should be noted that the backs of the second fan 36, the fourth air duct 361, the fifth air duct 362 and the sixth air duct 363 installed or opened in the second mounting slot 35 should form a horizontal plane so that the fixing layer 1 can be wrapped more flat and beautifully. In this embodiment, the empty space in the second mounting slot 35 can be filled with filler blocks to support the human body and increase the overall comfort of the seat cushion.
[0043] like Figure 8 As shown, the upper front end of the fixing layer 1 of this utility model is provided with a first Velcro 1A, and a first through hole 1B is provided through the middle. The upper front end of the fixing layer 1 is detachably connected to the backrest layer 2A through the first Velcro 1A. In this embodiment, the back of the backrest layer 2A is provided with Velcro corresponding to the first Velcro 1A, thereby realizing the detachable connection between the backrest layer 2A and the upper front end of the fixing layer 1. The first through hole 1B corresponds to the first fan 33 that penetrates the bottom of the first mounting groove 31 through the air inlet. The detachable connection facilitates cleaning and maintenance. In this embodiment, the backrest layer 2A is used to increase the comfort of the user. The detachable connection allows the manufacturer to replace backrests with different functions, increasing the diversity of products. The front of the backrest layer 2A is made of breathable material, allowing the interior to circulate with the outside air. In conjunction with the first through hole 1B and the first fan 33, the heat generated by the human back can be absorbed and discharged.
[0044] The fixed layer 1 has a second Velcro 3A at the lower front end and a second through hole 3B in the middle. The lower front end of the fixed layer 1 is detachably connected to the seat cushion layer 2B via the second Velcro 3A. In this embodiment, the bottom of the seat cushion layer 2B has a Velcro corresponding to the second Velcro 3A, thereby enabling the seat cushion layer 2B to be detachably connected to the lower front end of the fixed layer 1. The second through hole 3B corresponds to the second fan 36 that penetrates the bottom of the second mounting groove 35. The seat cushion layer 2B works on the same principle as the backrest layer 2A, so it will not be described in detail. The top of the seat cushion layer 2B is made of breathable material, allowing air to circulate between the inside and outside. Together with the second fan 36 and the second through hole 3B, it can absorb the heat generated by the human buttocks.
[0045] like Figure 9 , 10As shown in Figure 11, the backrest layer 2A of this utility model includes a first cushion 2A1. The back of the first cushion 2A1 is detachably connected to the upper front of the fixed layer 1 via a first Velcro 1A. A first breathable layer 2A2 is provided on the front of the first cushion 2A1. The interior of the first cushion 2A1 is connected to the outside through the first breathable layer 2A2. A first corresponding hole 2A3 is provided through the middle of the back of the first cushion 2A1. The first corresponding hole 2A3 corresponds to the first through hole 1B provided through the middle of the fixed layer 1. The first cushion 2A1 is used to increase comfort. When a person's back comes into contact with the first cushion 2A1 and heat is generated, the heat will be absorbed by the first fan 33 through the first breathable layer 2A2, the first corresponding hole 2A3 and the first through hole 1B.
[0046] like Figure 9 , 12 As shown in Figure 13, the cushion layer 2B of this utility model includes a second cushion body 2B1. The second cushion body 2B1 is detachably connected to the lower front end of the fixing layer 1 via a second Velcro 3A. A second breathable layer 2B2 is provided on the top of the second cushion body 2B1. The interior of the second cushion body 2B1 is connected to the outside of the second breathable layer 2B2. A second corresponding hole 2B3 is provided through the middle of the back of the second cushion body 2B1. The second corresponding hole 2B3 corresponds to the second through hole 3B provided through the lower front end of the fixing layer 1. The second cushion body 2B1 is used to increase comfort. When heat is generated between the human body and the second cushion body 2B1, the heat will be drawn out by the first fan 33 through the second breathable layer 2B2, the second corresponding hole 2B3 and the second through hole 3B.
[0047] The first corresponding hole 2A3, the first through hole 1B, and the first breathable layer 2A2 correspond to each other at the air inlet end. The first corresponding hole 2A3, the first through hole 1B, and the first breathable layer 2A2 act as channels to connect the heat area on the back with the air inlet end of the first fan 33, allowing heat to be drawn out through the first fan 33 to achieve a cooling effect. The second corresponding hole 2B3 and the second through hole 3B correspond to the air inlet end of the second fan 36. The second corresponding hole 2B3, the second through hole 3B, and the second breathable layer 2B2 act as channels to connect the heat area on the buttocks with the air inlet end of the second fan 36, allowing heat to be drawn out through the second fan 36.
[0048] Working principle:
[0049] The fixing layer 1 wraps the functional layer 3 inside, making the overall seat cushion more aesthetically pleasing and ensuring that the functional layer 3 is not exposed. The outer side of the fixing layer 1 is detachably connected to the backrest layer 2A and the seat cushion layer 2B, which can increase the user's comfort. The backrest layer 2A and the seat cushion layer 2B can work with the functional layer 3 to absorb the heat generated by the user coming into contact with the backrest layer 2A and the seat cushion layer 2B, achieving the effect of ventilation and cooling.
[0050] Functional layer 3 includes a first housing 311, a second housing 313, and a connecting part 312, which together form a housing for installation. The first housing 311 and the second housing 313 have a first mounting slot 31 and a second mounting slot 35 respectively. A controller 32 is installed in the first mounting slot 31, and the controller 32's output cable is arranged in a wiring harness slot 34 and connected to the first fan 33 and the second fan 36. During operation, the controller 32 controls the operation of the first fan 33 and the second fan 36. The first corresponding hole 2A3 and the first through hole 1B correspond to the air intake end of the first fan 33. The first corresponding hole 2A3 and the first through hole 1B act as channels to connect the back heat area and the air intake end of the first fan 33, allowing the air intake end of the first fan 33 to absorb heat from the back. The upper, lower, and right exhaust ports of the first fan 33 are located on the first... The mounting slot 31 is provided with a first air duct 331, a second air duct 332, and a third air duct 333. The absorbed heat will be discharged into the first air duct 331, the second air duct 332, and the third air duct 333, and then discharged to the outside, achieving a cooling effect. The second corresponding hole 2B3 and the second through hole 3B correspond to the air inlet end of the second fan 36. The second corresponding hole 2B3 and the second through hole 3B act as channels to connect the heat area of the buttocks with the air inlet end of the second fan 36, so that the air inlet end of the second fan 36 can absorb heat from the back. The exhaust ports at the top, bottom, and right end of the second fan 36 are respectively provided with a fourth air duct 361, a fifth air duct 362, and a sixth air duct 363 in the second mounting slot 35. The heat absorbed by the second fan 36 will be discharged into the fourth air duct 361, the fifth air duct 362, and the sixth air duct 363, and then discharged to the outside, achieving a cooling effect.
[0051] The fixed layer 1 of this utility model has a first Velcro 1A on the upper front and a first through hole 1B in the middle. The upper front of the fixed layer 1 is detachably connected to the backrest layer 2A through the first Velcro 1A. The first through hole 1B corresponds to the first fan 33 that passes through the bottom of the first mounting groove 31 at the air inlet end. The first through hole 1B on the upper front of the fixed layer 1 cooperates with the backrest layer 2A and the heat of the back is drawn out by the first fan 33 to achieve the effect of ventilation and cooling.
[0052] The backrest layer 2A includes a first cushion 2A1, which is used to increase the comfort of the user and is detachable for easy cleaning and maintenance. The front of the first cushion 2A1 is provided with a first breathable layer 2A2. The interior of the first cushion 2A1 is connected to the outside through the first breathable layer 2A2. When the back of the person comes into contact with the first cushion 2A1 and heat is generated, the first fan 33 is activated. The heat will be drawn into the interior of the first cushion 2A1 through the first breathable layer 2A2 under the suction of the first fan 33. The first corresponding hole 2A3 and the first through hole 1B on the back of the first cushion 2A1 form a channel. The heat inside the first cushion 2A1 will pass through the channel and enter the air inlet of the first fan 33. Then the heat will be discharged into the first air duct 331, the second air duct 332 and the third air duct 333 through the exhaust end of the first fan 33.
[0053] The lower front end of the fixed layer 1 is provided with a second Velcro 3A, and a second through hole 3B is provided in the middle. The lower front end of the fixed layer 1 is detachably connected to the cushion layer 2B through the second Velcro 3A. The second through hole 3B corresponds to the second fan 36 that passes through the bottom of the second mounting groove 35 at the air inlet end. The second through hole 3B cooperates with the cushion layer 2B and the second fan 36 absorbs the heat from the back to achieve the effect of ventilation and cooling.
[0054] The cushion layer 2B includes a second cushion body 2B1, which is used to increase the comfort of the user and is detachable for easy cleaning and maintenance. A second breathable layer 2B2 is provided on the top of the second cushion body 2B1. The interior of the second cushion body 2B1 is connected to the outside through the second breathable layer 2B2. When the user's buttocks come into contact with the second cushion body 2B1 and heat is generated, the second fan 36 is activated. The heat will be drawn into the interior of the second cushion body 2B1 through the second breathable layer 2B2 under the suction of the second fan 36. The second corresponding hole 2B3 and the second through hole 3B on the back of the second cushion body 2B1 form a channel. The heat inside the second cushion body 2B1 will pass through the channel and enter the air inlet of the second fan 36. Then the heat will be discharged through the exhaust end of the second fan 36 into the fourth air duct 361, the fifth air duct 362 and the sixth air duct 363.
[0055] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A ventilated seat cushion, characterized in that: It includes a fixing layer (1) and a functional layer (3). The functional layer (3) is sewn into the fixing layer (1). The functional layer (3) includes a first shell (311). A connecting part (312) is provided at the bottom of the first shell (311). A second shell (313) is fixedly installed at the bottom of the first shell (311) through the connecting part (312). The first shell (311), the connecting part (312), and the second shell (313) are sewn into the fixing layer (1). A first mounting groove (31) is provided on the back of the first shell (311), and a second mounting groove (35) is provided on the back of the second shell (313). The first mounting slot (31) is insulated with a controller (32) and a first fan (33). The air inlet of the first fan (33) passes through the bottom of the first mounting slot (31). The output of the controller (32) is insulated with a wire harness slot (34) in the first mounting slot (31). The bottom of the wire harness slot (34) passes through the top of the first housing (311), the connecting part (312), and the second housing (313) and is opened in the second mounting slot (35). The second mounting slot (35) is insulated with a second fan (36). The air inlet of the second fan (36) passes through the bottom of the second mounting slot (35).
2. The ventilated seat cushion according to claim 1, characterized in that: One end of the wiring harness slot (34) extends to the input end of the first fan (33), and the other end extends to the input end of the second fan (36). The output cable of the controller (32) is electrically connected to the first fan (33) and the second fan (36) through the wiring harness slot (34).
3. The ventilated seat cushion according to claim 2, characterized in that: The exhaust ports at the top, bottom and right ends of the first fan (33) are respectively provided with a first air duct (331), a second air duct (332) and a third air duct (333) in the first mounting groove (31). The first air duct (331) and the second air duct (332) are connected to the outside by passing through the inner wall of the first mounting groove (31) and the inner wall of the fixing layer (1) at the end away from the exhaust port of the first fan (33). The third air duct (333) is connected to the outside by passing through the bottom of the first mounting groove (31) and the bottom of the connecting part (312) and the inner wall of the fixing layer (1) at the end away from the exhaust port of the first fan (33).
4. The ventilated seat cushion according to claim 2, characterized in that: The exhaust ports at the top, bottom and right ends of the second fan (36) are respectively provided with a fourth air duct (361), a fifth air duct (362) and a sixth air duct (363) in the second mounting groove (35). The fourth air duct (361), the fifth air duct (362) and the sixth air duct (363) are connected to the outside by passing through the inner wall of the second mounting groove (35) and the inner wall of the fixing layer (1) at the end away from the exhaust port of the second fan (36).
5. A ventilated seat cushion according to claim 4, characterized in that: Both the first fan (33) and the second fan (36) are provided with protective covers on their outer sides.
6. A ventilated seat cushion according to claim 1, characterized in that: The upper front end of the fixing layer (1) is provided with a first Velcro (1A) and a first through hole (1B) is provided in the middle. The upper front end of the fixing layer (1) is detachably connected to the backrest layer (2A) through the first Velcro (1A). The first through hole (1B) corresponds to the first fan (33) that passes through the bottom of the first mounting groove (31) at the air inlet end.
7. A ventilated seat cushion according to claim 1, characterized in that: The fixing layer (1) has a second Velcro (3A) at the lower front end and a second through hole (3B) in the middle. The fixing layer (1) is detachably connected to the cushion layer (2B) through the second Velcro (3A). The second through hole (3B) corresponds to the second fan (36) at the bottom of the second mounting groove (35) at the air inlet end.
8. A ventilated seat cushion according to claim 6, characterized in that: The backrest layer (2A) includes a first cushion (2A1), the back of the first cushion (2A1) is detachably connected to the upper front of the fixing layer (1) via a first Velcro (1A), the front of the first cushion (2A1) is provided with a first breathable layer (2A2), the interior of the first cushion (2A1) is connected to the outside through the first breathable layer (2A2), and a first corresponding hole (2A3) is provided through the middle of the back of the first cushion (2A1), the first corresponding hole (2A3) is corresponding to the first through hole (1B) provided through the middle of the fixing layer (1).
9. A ventilated seat cushion according to claim 7, characterized in that: The cushion layer (2B) includes a second cushion body (2B1), which is detachably connected to the lower front end of the fixing layer (1) via a second Velcro strap (3A). A second breathable layer (2B2) is provided on the top of the second cushion body (2B1), and the interior of the second cushion body (2B1) is connected to the outside of the second breathable layer (2B2). A second corresponding hole (2B3) is provided through the middle of the back of the second cushion body (2B1), which corresponds to the second through hole (3B) provided through the lower front end of the fixing layer (1).
10. A ventilated seat cushion according to claim 9, characterized in that: The first corresponding hole (2A3), the first through hole (1B) and the air inlet of the first fan (33) correspond to each other, and the second corresponding hole (2B3), the second through hole (3B) and the air inlet of the second fan (36) correspond to each other.