Seat ventilation multi-gear control device

Abstract

The utility model belongs to the technical field of seat ventilation, and discloses a seat ventilation multi-gear control device which comprises a controller body, and a signal interface is arranged on one side of the controller body. The controller body is inserted into an inner cavity of the first shell, a connecting piece used for being installed at the bottom of a seat is arranged at the top of the first shell, and a fixing piece used for fixing the controller body is arranged at the bottom of the first shell; the second shell is attracted to one side of the first shell through a magnetic attraction assembly, a plurality of sets of keys are arranged on one side of the second shell, and the keys are electrically connected with the controller body through signal connecting pieces. Through the arrangement of the connecting piece, when the controller body is disassembled, the first shell can be taken down from the bottom of the seat only by slightly uncovering the hook surface of the magic tape, the operation is very simple and convenient, so that parts such as the controller body, the signal connecting piece and the like are convenient to maintain and replace, and the maintenance time and cost are further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-speed control devices for seat ventilation, in particular to a multi-speed control device for seat ventilation. Background Art

[0002] With the continuous development of automobile technology, users spend more and more time in cars, and the concept of car as home is gradually accepted by people. How to create a more comfortable driving environment in the car, especially how to effectively create a cool environment for the contact part between the human body and the car seat in the hot summer, is an issue that people are paying more and more attention to.

[0003] At present, the Chinese utility model patent with announcement number CN219312578U discloses a voice control device for seat ventilation, including a base, a hinge seat at one end of the base, a hollow first air cavity inside the base, and a ventilation structure for accelerating ventilation in the first air cavity; a backrest, hinge blocks at both sides of the lower end of the backrest, the backrest is hingedly arranged above the hinge seat of the base through the hinge blocks; a second air cavity is formed in the hollow inside the backrest, and a ventilation structure for accelerating ventilation is also arranged in the second air cavity; a pipe extends from one side of the first air cavity, and one end of the pipe passes through the backrest and is connected to the second air cavity. The utility model can control the ventilation structure to work by voice while driving, which is safer to use.

[0004] There are still some problems in the use of the above-mentioned seat ventilation voice control device. Although the ventilation structure can be controlled by voice while driving, which is safer to use, if it is installed in a position close to the side of the armrest box, the installation position is relatively hidden. When the controller fails and needs to be repaired or replaced, the technician may need to remove part of the seat to operate, which will inevitably increase the time and cost of maintenance. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-speed control device for seat ventilation, so as to solve the problem proposed in the above-mentioned background technology that if it is installed at a position close to the side of the armrest box, the installation position is relatively hidden. When the controller fails and needs to be repaired or replaced, the technician may need to disassemble some parts of the seat to operate it, which is bound to increase the time and cost of maintenance.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multi-speed seat ventilation control device includes a controller body, a signal interface is provided on one side of the controller body; a first shell, the controller body is plugged into the inner cavity of the first shell, the top of the first shell is provided with a connector for installation on the bottom of the seat, and the bottom of the first shell is provided with a fixing part for fixing the controller body; a second shell, the second shell is adsorbed on one side of the first shell through a magnetic attraction component, and a plurality of groups of buttons are provided on one side of the second shell, and the buttons are electrically connected to the controller body through a signal connector.

[0008] As a preferred technical solution, the connecting member includes a magic tape hook surface bonded to the top of the first shell, the magic tape hook surface is bonded with a corresponding magic tape fur surface, and an adhesive layer is provided on the top of the magic tape fur surface.

[0009] As a preferred technical solution, the fixing part includes strip grooves opened at the bottom of both sides of the first shell, the inner cavities of the strip grooves are fixedly installed with connecting rods, the surfaces of the connecting rods are rotatably sleeved with pressure plates, the tops of one ends of the two groups of pressure plates are fixedly connected with protrusions, the two groups of protrusions respectively penetrate the corresponding side strip grooves and are crimped to the surface of the controller body, the surface of the controller body is respectively provided with grooves corresponding to the protrusions, the other ends of the two groups of pressure plates are tilted downward, the other ends of the two groups of pressure plates are provided with elastic pushing components that push the pressure plates downward to increase the abutment force on the controller body, and the surfaces of the two groups of pressure plates are slidably connected with release components for releasing the crimping of the controller body.

[0010] As a preferred technical solution, the elastic pushing assembly includes first springs respectively arranged above the other ends of the two groups of pressure plates, the top ends of the two groups of first springs abut against the surface of the second shell, and the other end of the pressure plate is provided with a limiting member for limiting the first spring.

[0011] As a preferred technical solution, the limiting member includes a limiting plate arranged on the top of the two groups of the first springs, and the bottoms of the two groups of the limiting plates are fixedly connected with screw rods, and the two groups of the screw rods respectively penetrate downward through the corresponding side surfaces of the pressure plate, and the ends of the screw rods located below the pressure plate are threadedly connected with nuts, and the two groups of nuts respectively contact the surfaces of the corresponding side pressure plates.

[0012] As a preferred technical solution, the limit release assembly includes a square hole opened at the bottom of the first shell body, the inner cavity of the square hole is fixedly installed with a fixing rod, the surface sliding sleeve of the fixing rod is provided with a sliding ring, and the surface sleeve of the fixing rod is provided with a second spring between the sliding ring and the inner wall of the square hole on the side close to the mouth of the first shell body, the bottom of the sliding ring is fixedly connected with a connecting strip, and the connecting strips extend to both sides to the surfaces of the corresponding side pressure plates, and both ends of the connecting strip are fixedly connected with push pieces, and the surfaces of the two groups of push pieces facing each other are provided with guide members for guiding the sliding trajectory of the push pieces, and a paddle is provided at the middle bottom of the connecting strip.

[0013] As a preferred technical solution, the guide member includes limit strips fixedly installed on the opposite ends of the two groups of push plates, and the bottom surface of the second shell is provided with limit grooves corresponding to the limit strips at positions corresponding to the limit strips. One ends of the two groups of limit strips extend upward and are respectively slidably connected to the inner cavities of the limit grooves at corresponding positions.

[0014] As a preferred technical solution, the signal connector includes a Bluetooth receiving end electrically connected to one group of the signal interfaces, a mounting frame is fixedly installed on one side of the second shell, the inner cavity of the mounting frame is provided with a Bluetooth transmitting end compatible with the Bluetooth receiving end, the buttons are electrically connected to the Bluetooth transmitting end through wires, and the outer cylindrical surface of the mounting frame is provided with a cap.

[0015] As a preferred technical solution, the magnetic attraction component includes an iron sheet fixedly installed on one side of the first shell, and a magnetic attraction sheet is provided on one side of the second shell and at a position corresponding to the iron sheet. The second shell can be adsorbed to the iron sheet on the surface of the first shell through the magnetic attraction sheet.

[0016] As a preferred technical solution, a suction cup is provided on one side surface of the second shell.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model provides a connecting piece, and when disassembling the controller body, the first shell can be removed from the bottom of the seat by gently peeling off the hook surface of the magic belt, which is very simple and convenient, so that the controller body, signal connecting piece and other components can be repaired and replaced, thereby reducing the time and cost of repair.

[0019] 2. The utility model sets an elastic force to push the assembly, and utilizes the elastic force of the first spring to continuously apply downward pressure to the pressure plate after the second shell is installed, thereby further strengthening the pressing effect of the pressure plate on the controller body, effectively resisting vibration interference during vehicle driving, and improving fixation reliability.

[0020] 3. The utility model, through the setting of the limit release component, pushes the paddle toward the tail of the first shell, thereby driving the push pieces at both ends to move toward the inclined ends of the pressure plate respectively through the connecting strip, and presses the inclined end of the pressure plate upward, and drives the other end of the pressure plate to move downward through the transmission of the connecting rod, so that the protrusion is separated from the groove cavity at the bottom of the controller, releasing the pressure connection of the pressure plate to the controller body, and realizing fast and non-destructive disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a multi-speed seat ventilation control device of the utility model;

[0022] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above;

[0024] Figure 4 This is a schematic diagram of the structure of the controller body of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the first spring of the utility model;

[0026] Figure 6 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0027] In the figure:

[0028] 100, controller body; 101, interface; 102, Bluetooth receiver; 103, groove;

[0029] 200, first housing; 201, Velcro surface; 202, adhesive layer; 203, Velcro hook surface; 204, limit groove; 205, strip groove; 206, square hole; 207, pressing plate; 208, connecting rod; 209, protrusion; 210, limit plate; 211, first spring; 212, nut; 213, screw rod;

[0030] 300, second housing; 301, suction cup; 302, button; 303, cover cap; 304, iron sheet; 305, magnetic sheet; 306, Bluetooth transmitter; 307, installation frame;

[0031] 400, limit strip; 401, push piece; 402, connection strip; 403, fixing rod; 404, sliding ring; 405, paddle; 406, second spring. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figure 1-6 The present embodiment provides a multi-speed seat ventilation control device, including a controller body 100, a signal interface 101 is provided on one side of the controller body 100; a first shell 200, the controller body 100 is plugged into the inner cavity of the first shell 200, a connector for mounting on the bottom of the seat is provided on the top of the first shell 200, and a fixing member for fixing the controller body 100 is provided on the bottom of the first shell 200; a second shell 300, the second shell 300 is adsorbed on one side of the first shell 200 through a magnetic attraction component, a plurality of buttons 302 are provided on one side of the second shell 300, and the buttons 302 are electrically connected to the controller body 100 through the signal connector;

[0034] Among them, the connecting part includes a magic tape hook surface 203 bonded to the top of the first shell 200, the magic tape hook surface 203 is bonded with a corresponding magic tape fur surface 201, and an adhesive layer 202 is arranged on the top of the magic tape fur surface 201. Through the setting of the connecting part, when disassembling the controller body 100, you only need to gently peel off the magic tape hook surface 203 to remove the first shell 200 from the bottom of the seat. It is very simple and convenient, so it is easy to repair and replace the controller body 100, signal connectors and other components, thereby reducing the time and cost of maintenance.

[0035] The fixing member includes a strip groove 205 opened at the bottom of both sides of the first shell 200, and the inner cavity of the strip groove 205 is fixedly installed with a connecting rod 208. The surface of the connecting rod 208 is rotatably sleeved with a pressure plate 207. The top of one end of the two groups of pressure plates 207 is fixedly connected with a protrusion 209. The two groups of protrusions 209 respectively penetrate the corresponding side strip grooves 205 and are pressed on the surface of the controller body 100. The surface of the controller body 100 is respectively provided with grooves 103 at positions corresponding to the protrusions 209. The other ends of the two groups of pressure plates 207 are tilted downward, and the other ends of the two groups of pressure plates 207 are provided with elastic forces that push the pressure plates 207 downward to increase the abutment force on the controller body 100. The surfaces of the two groups of pressure plates 207 are slidably connected with a release assembly for releasing the crimping of the controller body 100. The elastic pushing assembly includes a first spring 211 respectively arranged above the other end of the two groups of pressure plates 207. The top end of the two groups of first springs 211 abuts against the surface of the second shell 300. The other end of the pressure plate 207 is provided with a limit piece for limiting the first spring 211. Through the setting of the elastic pushing assembly and utilizing the elastic force of the first spring 211, downward pressure is continuously applied to the pressure plate 207 after the second shell 300 is installed, thereby further strengthening the clamping effect of the pressure plate 207 on the controller body 100, effectively resisting vibration interference during vehicle driving, and improving the fixing reliability.

[0036] Among them, how the controller body 100 controls seat ventilation is a technical means well known to those skilled in the art. Its specific working principle can be found in a controller in a ventilation and heating device with publication number CN219184808U, which will not be repeated here.

[0037] The adhesive layer 202 is one or a combination of double-sided adhesive, polyurethane adhesive, and acrylic adhesive.

[0038] Among them, the limiting member includes a limiting plate 210 arranged on the top of the two groups of first springs 211, and the bottom of the two groups of limiting plates 210 are fixedly connected with a screw rod 213, and the two groups of screw rods 213 respectively penetrate downwardly through the corresponding side surfaces of the pressure plate 207, and the ends of the screw rods 213 located below the pressure plate 207 are threadedly connected with nuts 212, and the two groups of nuts 212 respectively contact the surfaces of the corresponding side pressure plates 207. Through the setting of the limiting member, the limiting plate 210 prevents the spring from deviating during the compression and rebound process, and ensures that the elastic force acts vertically on the pressure plate 207. The screw rod 213 penetrates the pressure plate 207 and is threadedly connected with the nut 212, which is convenient for fine-tuning the spring elastic force during installation and debugging, and can ensure the stability of the structure during long-term use to prevent accidents such as the spring falling out.

[0039] The release assembly includes a square hole 206 opened at the bottom of the first shell 200, a fixing rod 403 is fixedly installed in the inner cavity of the square hole 206, a sliding ring 404 is slidably sleeved on the surface of the fixing rod 403, a second spring 406 is sleeved on the surface of the fixing rod 403 between the sliding ring 404 and the inner wall of the square hole 206 on the side close to the mouth of the first shell 200, a connecting strip 402 is fixedly connected to the bottom of the sliding ring 404, the connecting strip 402 extends to the surfaces of the corresponding side pressure plates 207 on both sides, both ends of the connecting strip 402 are fixedly connected to push pieces 401, and the surfaces of the two groups of push pieces 401 facing each other are provided with useful A paddle 405 is provided at the middle bottom of the connecting strip 402 as a guide member for guiding the sliding trajectory of the push piece 401. Through the setting of the limit release component, the paddle 405 is pushed toward the tail of the first shell 200, so that the push pieces 401 at both ends are driven to move toward the inclined ends of the pressure plate 207 respectively through the connecting strip 402, and the inclined ends of the pressure plate 207 are pressed upward, and the other end of the pressure plate 207 is driven to move downward through the transmission of the connecting rod 208, so that the protrusion 209 is disengaged from the inner cavity of the groove 103 at the bottom of the controller body 100, and the pressure connection of the pressure plate 207 to the controller body 100 is released, so as to realize quick and non-destructive disassembly.

[0040] Among them, the guide members include limit strips 400 respectively fixedly installed on the opposite ends of the two groups of push pieces 401, and a limit groove 204 corresponding to the limit strip 400 is opened on the bottom surface of the second shell 300 and located at a position corresponding to the limit strip 400. One end of the two groups of limit strips 400 extends upward and is respectively slidably connected to the inner cavity of the limit groove 204 at the corresponding position. Through the setting of the guide member, during the operation of releasing the crimping of the pressure plate 207, the limit strip 400 slides along the limit groove 204 to prevent the push piece 401 from being offset or stuck.

[0041] Among them, the signal connector includes a Bluetooth receiving terminal 102 electrically connected to one group of signal interfaces 101, a mounting frame 307 is fixedly installed on one side of the second shell 300, and the inner cavity of the mounting frame 307 is provided with a Bluetooth transmitting terminal 306 compatible with the Bluetooth receiving terminal 102, and the buttons 302 are electrically connected to the Bluetooth transmitting terminal 306 through wires, and the outer cylindrical surface of the mounting frame 307 is sleeved with a cap 303. Through the setting of the signal connector, the Bluetooth receiving terminal and the Bluetooth transmitting terminal 306 cooperate in a manner that gets rid of the constraints of traditional wired connections, so that there is no need for complicated wiring between the operation of the buttons 302 of the second shell 300 and the controller body 100, which simplifies the overall structure of the device and reduces the risk of failure caused by cable aging and pulling; on the other hand, it is convenient for users to freely operate the buttons 302 without being restricted by the length and direction of the cable, thereby improving the flexibility of use, and the Bluetooth technology is mature and the transmission is stable, which can meet the requirements of seat function control for signal transmission.

[0042] The model of the Bluetooth receiving terminal 102 is nrf52832, and the model of the Bluetooth transmitting terminal 306 is nrf52840.

[0043] Among them, the magnetic attraction component includes an iron sheet 304 fixedly installed on one side of the first shell 200, and a magnetic attraction sheet 305 is arranged on one side of the second shell 300 and at a position corresponding to the iron sheet 304. The second shell 300 can be adsorbed on the iron sheet 304 on the surface of the first shell 200 through the magnetic attraction sheet 305. Through the setting of the magnetic attraction component, the second shell 300 and the first shell 200 can be quickly and conveniently adsorbed and connected to each other, preventing accidental loss during transportation.

[0044] A suction cup 301 is disposed on one side surface of the second shell 300 . By disposing the suction cup 301 , the second shell 300 can be installed at a desired position on the surface, which is very convenient and quick.

[0045] Working principle:

[0046] First, the Velcro fleece 201 is bonded to the bottom of the seat through the adhesive layer 202, and then the Velcro hook 203 is bonded to the top of the first shell 200, and then bonded to the corresponding Velcro fleece 201, so that the entire device is stably installed under the seat;

[0047] Then, the controller body 100 is inserted into the inner cavity of the first shell 200, and the bottom surface of the controller body 100 pushes the protrusion 209 at the top of one end of the pressure plate 207 downward out of the inner cavity of the first shell 200, and is transmitted through the connecting rod 208, driving the other end of the pressure plate 207 to move downward, and at the same time, the push piece 401 moves the tail of the first shell 200 under the push of the second spring 406, and the other end of the pressure plate 207 moves downward while compressing the first spring 211. As one end of the controller body 100 continues to penetrate into the inner cavity of the first shell 200, when the groove 103 at the bottom of the controller body 100 moves to the corresponding position of the groove 103, the first spring 211 applies a force downward to one end of the pressure plate 207, and the pressure plate 207 rotates around the connecting rod 208, so that the protrusion 209 is stuck in the inner cavity of the groove 103, and the other end of the pressure plate 207 is reset, pushing the push piece 401 back to its original position, thereby limiting the plane of the pressure plate 207;

[0048] Subsequently, the second shell 300 located on one side of the first shell 200 is taken out, and the second shell 300 is adsorbed to a position convenient for operation by the suction cup 301. At the same time, a plurality of groups of buttons 302 are arranged on one side of the second shell 300. When the user presses the button 302, the button 302 generates a corresponding electrical signal, which is transmitted to the Bluetooth transmitting end 306 through a wire. After receiving the signal, the Bluetooth transmitting end 306 encodes it according to the Bluetooth wireless communication protocol and sends the encoded signal. A signal interface 101 is arranged on one side of the controller body 100, and one of the interfaces 101 is connected to the Bluetooth receiving end. After receiving the signal from the Bluetooth transmitting end 306, the Bluetooth receiving end performs a decoding operation to restore the original button 302 information, and then transmits the button 302 information to the controller body 100 through the signal interface 101. The controller body 100 adjusts the seat ventilation gear according to the received button 302 information.

[0049] When the controller body 100 needs to be disassembled, the paddle 405 is pushed toward the tail of the first shell 200, thereby driving the push pieces 401 at both ends to move toward the inclined ends of the pressure plate 207 through the connecting strip 402, and the inclined end of the pressure plate 207 is pressed upward, and the other end of the pressure plate 207 is driven to move downward through the connecting rod 208, so that the protrusion 209 is disengaged from the inner cavity of the groove 103 at the bottom of the controller body 100, and the controller body 100 can be taken out immediately.

[0050] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A multi-speed seat ventilation control device, characterized in that: include A controller body (100), wherein a signal interface (101) is provided on one side of the controller body (100); A first shell (200), the controller body (100) being plugged into an inner cavity of the first shell (200), a connecting piece for mounting on the bottom of a seat being provided at the top of the first shell (200), and a fixing piece for fixing the controller body (100) being provided at the bottom of the first shell (200); A second shell (300), wherein the second shell (300) is adsorbed onto one side of the first shell (200) via a magnetic attraction component, and a plurality of groups of buttons (302) are provided on one side of the second shell (300), and the buttons (302) are electrically connected to the controller body (100) via a signal connector.

2. A seat ventilation multi-speed control device according to claim 1, characterized in that: The connecting piece comprises a magic tape hook surface (203) bonded to the top of the first shell (200), the magic tape hook surface (203) is bonded to a corresponding magic tape fur surface (201), and an adhesive layer (202) is provided on the top of the magic tape fur surface (201).

3. A seat ventilation multi-speed control device according to claim 1, characterized in that: The fixing member comprises strip grooves (205) opened at the bottom of both sides of the first shell (200), the inner cavity of the strip grooves (205) is fixedly installed with a connecting rod (208), the surface of the connecting rod (208) is rotatably sleeved with a pressing plate (207), and the top of one end of two groups of pressing plates (207) are fixedly connected with a protrusion (209), and the two groups of protrusions (209) respectively penetrate the corresponding side strip grooves (205) and are pressed onto the surface of the controller body (100). The surface of the controller body (100) is provided with grooves (103) at positions corresponding to the protrusions (209), the other ends of the two groups of pressure plates (207) are arranged to be tilted downward, the other ends of the two groups of pressure plates (207) are provided with elastic force pushing components that push the pressure plates (207) downward to increase the contact force with the controller body (100), and the surfaces of the two groups of pressure plates (207) are slidably connected with release components for releasing the pressure on the controller body (100).

4. A seat ventilation multi-speed control device according to claim 3, characterized in that: The elastic force pushing assembly comprises first springs (211) respectively arranged above the other ends of the two groups of pressure plates (207), the top ends of the two groups of first springs (211) abut against the surface of the second shell (300), and the other end of the pressure plate (207) is provided with a limiting member for limiting the first spring (211).

5. A seat ventilation multi-speed control device according to claim 4, characterized in that: The limiting member comprises a limiting plate (210) arranged on the top of the two groups of the first springs (211); the bottoms of the two groups of limiting plates (210) are fixedly connected with screw rods (213); the two groups of screw rods (213) respectively penetrate downward through the corresponding side surfaces of the pressure plate (207); the ends of the screw rods (213) located below the pressure plate (207) are threadedly connected with nuts (212); the two groups of nuts (212) respectively contact the surfaces of the corresponding side pressure plates (207).

6. A seat ventilation multi-speed control device according to claim 5, characterized in that: The release assembly comprises a square hole (206) opened at the bottom of the first shell (200), a fixing rod (403) is fixedly installed in the inner cavity of the square hole (206), a sliding ring (404) is slidably sleeved on the surface of the fixing rod (403), and a second spring (406) is sleeved on the surface of the fixing rod (403) between the sliding ring (404) and the inner wall of the square hole (206) close to the mouth of the first shell (200), a connecting strip (402) is fixedly connected to the bottom of the sliding ring (404), and the connecting strip (402) extends to the surfaces of the corresponding side pressure plates (207) on both sides, and push pieces (401) are fixedly connected at both ends of the connecting strip (402), and a guide member for guiding the sliding trajectory of the push pieces (401) is provided on the surfaces of the two groups of push pieces (401) facing each other, and a paddle (405) is provided at the middle bottom of the connecting strip (402).

7. A seat ventilation multi-speed control device according to claim 6, characterized in that: The guide member comprises limit strips (400) respectively fixedly mounted on opposite ends of the two groups of push pieces (401); a limit groove (204) corresponding to the limit strip (400) is provided on the bottom surface of the second shell (300) at a position corresponding to the limit strip (400); one end of the two groups of limit strips (400) extends upward and is respectively slidably connected to the inner cavity of the limit groove (204) at the corresponding position.

8. The seat ventilation multi-speed control device according to claim 1, characterized in that: The signal connector comprises a Bluetooth receiving end (102) electrically connected to one of the signal interfaces (101); a mounting frame (307) is fixedly mounted on one side of the second shell (300); an inner cavity of the mounting frame (307) is provided with a Bluetooth transmitting end (306) adapted to the Bluetooth receiving end (102); the buttons (302) are electrically connected to the Bluetooth transmitting end (306) via wires; and a cover cap (303) is provided on the outer circumferential surface of the mounting frame (307).

9. The multi-speed seat ventilation control device according to claim 1, characterized in that: The magnetic attraction component comprises an iron sheet (304) fixedly mounted on one side of the first shell (200); a magnetic attraction sheet (305) is arranged on one side of the second shell (300) and at a position corresponding to the iron sheet (304); the second shell (300) can be adsorbed to the iron sheet (304) on the surface of the first shell (200) through the magnetic attraction sheet (305).

10. A seat ventilation multi-speed control device according to claim 9, characterized in that: A suction cup (301) is provided on one side surface of the second shell (300).

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