Adjusting damper and air conditioning box

Abstract

This invention belongs to the field of automotive air conditioning technology and discloses an adjustable damper and an air conditioning unit. The adjustable damper is disposed within the air conditioning unit, which has an internal circulation channel and an external circulation channel. Both the internal and external circulation channels are provided with cold air channels and warm air channels. The adjustable damper includes a drive assembly, a first damper, and a second damper. The drive assembly is disposed within the air conditioning unit. Both the first and second dampers are driven and sealed to the drive assembly. Both the first and second dampers have arc-shaped structures. The first damper is sealed and slidably disposed within the external circulation channel. The second damper is disposed opposite to the first damper and is sealed and slidably disposed within the internal circulation channel. The drive assembly can drive the first and second dampers to move closer to or further away from each other along their extension direction. This adjustable damper has excellent sealing performance, reduces the number of parts, saves costs, and occupies little space, thus improving space utilization.

Description

Technical Field

[0001] This invention relates to the field of automotive air conditioning technology, and more particularly to an adjustable damper and an air conditioning unit. Background Technology

[0002] With the development of new energy vehicles, the functions and implementation methods of their air conditioning units are also gradually evolving. Since gasoline-powered vehicles use engine waste heat for heating, a stable heat source can be provided as long as the engine is running normally in low-temperature environments. However, new energy vehicles lack engines, therefore, there are two heating methods: the first is to replace the heater core in the air conditioning unit with a PTC electric heater, which consumes a lot of energy and shortens the driving range of new energy vehicles; the second is to use heat pump technology, which conventional air conditioning units are not well-suited for.

[0003] Building upon this foundation, to achieve effective heating and defogging in low-temperature environments while reducing energy consumption, thereby increasing mileage and alleviating driving anxiety, a dual-layer flow air conditioning unit was developed. It meets all these requirements, and because heating utilizes a lower laminar flow internal circulation and defogging utilizes an upper laminar flow external circulation, it reduces heat load and eliminates window fogging. Simultaneously, it maintains a constant flow of fresh air into the passenger compartment, significantly improving comfort. However, existing air conditioning unit structures with dampers are no longer suitable for dual-layer flow air conditioning units. Furthermore, directly adding dampers and auxiliary components would result in a complex structure, a large number of parts, high cost, and low space utilization.

[0004] Therefore, there is an urgent need to design an adjustable damper to solve the above-mentioned technical problems. Summary of the Invention

[0005] One objective of this invention is to provide an adjustable damper that is suitable for dual-layer air conditioning units. It can simultaneously drive two dampers with a single drive component, has excellent sealing performance, reduces the number of parts, saves costs, and occupies little space, thus improving space utilization.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A regulating damper is installed inside an air conditioning unit, which has an internal circulation channel and an external circulation channel. Both the internal and external circulation channels are equipped with cold air and warm air passages. The regulating damper includes:

[0008] The drive assembly is located inside the aforementioned air conditioning unit;

[0009] The first damper is connected to the drive assembly and is sealed to the drive assembly. The first damper has an arc structure and is sealed and slidably disposed in the external circulation channel.

[0010] The second damper is sealed and driven to be connected to the drive assembly and disposed opposite to the first damper. The second damper has an arc-shaped structure and is sealed and slidably disposed in the inner circulation channel. The drive assembly can drive the first damper and the second damper to move closer to each other or further away from each other along their own extension direction, so as to selectively open the corresponding cold air channel or the corresponding warm air channel.

[0011] Optionally, the first damper and the second damper have the same structure. Both the first damper and the second damper include a frame structure and a baffle. The frame structures of the first damper and the second damper are arranged opposite to each other and staggered. The frame structure is driven to the drive assembly. The baffle is disposed on the frame structure to form a windproof part. The part of the frame structure without the baffle is a ventilation part. The frame structures of the first damper and the second damper can be close to each other or far away from each other to selectively seal the windproof part in the corresponding cold air channel or the corresponding warm air channel.

[0012] Optionally, the drive assembly includes a drive member and a gear shaft. The gear shaft is disposed at the output end of the drive member. The gear shaft has at least two gear portions. The frame structure has at least two gear racks. The gear racks and gear portions are arranged in a one-to-one correspondence. The gear racks and gear portions are meshed together. The drive member can drive the gear shaft to rotate, thereby causing the first damper and the second damper to move closer to or further away from each other.

[0013] Optionally, the drive assembly further includes a drive gear and a driven gear. The drive gear is fixedly connected to the output end of the drive member, and the driven gear is sleeved and fixedly connected to the gear shaft. The drive gear and the driven gear are meshed together, and the drive member can drive the drive gear and drive the driven gear to rotate the gear shaft.

[0014] Optionally, the aforementioned regulating damper further includes two sealing assemblies, which are respectively disposed on the first damper and the second damper. Each sealing assembly includes three seals, which are respectively disposed at both ends of the frame structure along its own extension direction and at one end of the baffle facing the ventilation section.

[0015] Optionally, both the first damper and the second damper include slide rails, and the air conditioning unit is provided with at least two slide grooves. The slide rails of the first damper and the second damper are arranged opposite to each other and offset, and the slide rails are slidably connected to the slide grooves.

[0016] Optionally, the slide rail includes a track and a plurality of elastic members disposed on the track, the track abutting against one wall of the slide groove, and the elastic members abutting against the other wall of the slide groove.

[0017] Another objective of this invention is to provide an air conditioning unit that is divided into an upper laminar flow external circulation unit and a lower laminar flow internal circulation unit, thereby improving the performance of various functions of the air conditioning unit and enhancing the comfort of the passenger compartment in a car.

[0018] To achieve this objective, the present invention adopts the following technical solution:

[0019] An air conditioning unit includes a housing and several regulating dampers as described above. The housing is provided with a double-layer flow baffle, which divides the housing into an internal circulation channel and an external circulation channel. Both the internal circulation channel and the external circulation channel are provided with a cold air channel and a warm air channel. The first damper is sealed in the external circulation channel, and the second damper is sealed in the internal circulation channel.

[0020] Optionally, the air conditioning unit further includes an evaporator and a heating element. The evaporator is disposed between the air inlet of the unit and the regulating damper, and the heating element is disposed in the heating channel and located on the side of the regulating damper away from the air inlet.

[0021] The first air damper and the second air damper can be brought close to each other and sealed to open the corresponding cold air passage; or the first air damper and the second air damper can be moved away from each other to open the corresponding warm air passage.

[0022] Optionally, the aforementioned housing is further provided with at least one partition plate, which divides the housing into at least two air conditioning channels. At least two regulating dampers are provided accordingly, and the regulating dampers and the air conditioning channels are arranged in a one-to-one correspondence. The regulating dampers are sealed within the air conditioning channels.

[0023] The beneficial effects of this invention are:

[0024] This invention provides an adjustable damper and an air conditioning unit. When cooling is required, the air conditioning unit moves a first damper and a second damper toward each other, completely closing the warm air passage and opening the cold air passage to achieve cooling. When heating is required, the second damper and the second damper move in opposite directions, completely closing the cold air passage and opening the warm air passage to achieve heating. Furthermore, the first and second dampers are driven by the same drive component, reducing the number of drive components and achieving synchronous operation of the two dampers, resulting in higher reliability. This damper also abandons the existing fan-shaped damper structure, forming two interlocking arc-shaped dampers, which occupy less space and improve space utilization. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the air conditioning unit in heating mode according to a specific embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the air conditioning unit in cooling mode according to a specific embodiment of the present invention;

[0027] Figure 3 This is an isometric view of the regulating damper of the dual-drive air conditioning unit provided in a specific embodiment of the present invention.

[0028] In the picture:

[0029] 10. Drive assembly; 11. Gear shaft; 12. Driving gear; 13. Driven gear;

[0030] 20. First air damper; 21. First frame structure; 22. First baffle;

[0031] 30. Second air damper; 31. Second frame structure; 32. Second baffle;

[0032] 40. Gear rack; 50. Seal; 60. Slide rail; 61. Track; 62. Elastic element;

[0033] 210. Housing; 211. Slide rail; 220. Internal circulation channel; 230. External circulation channel; 240. Double-layer flow baffle; 250. Cold air channel; 260. Warm air channel; 270. Evaporator; 280. Warm air core. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0035] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0038] This embodiment provides an air conditioning unit installed inside a vehicle. This air conditioning unit is a dual-layer air conditioning unit, which divides the air conditioning unit into two parts: an upper layer external circulation and a lower layer internal circulation. This improves the performance of various functions of the air conditioning unit and enhances the comfort of the passenger compartment in the vehicle.

[0039] Specifically, such as Figure 1 and Figure 2As shown, the air conditioning unit includes a housing 210 and several regulating dampers. The housing 210 is provided with a double-layer flow baffle 240, which divides the housing 210 into an inner circulation channel 220 and an outer circulation channel 230. Both the inner circulation channel 220 and the outer circulation channel 230 are provided with a cold air channel 250 and a warm air channel 260. The cold air channel 250 is used to realize the cooling function of the passenger cabin, and the warm air channel 260 is used to realize the heating function of the passenger cabin. The regulating dampers are sealed at the air inlet of the air conditioning unit and are slidably connected to the inner wall of the housing 210, so as to selectively open or close the cold air channel 250 and the warm air channel 260 in the inner circulation channel 220 and the outer circulation channel 230, so as to realize the cooling and heating performance of the air conditioning unit without interference.

[0040] Furthermore, the air conditioning unit also includes an evaporator 270 and a heating core 280. The evaporator 270 is located between the air inlet and the regulating damper of the housing 210 and is used for cooling. The heating core 280 is located within the heating air passage 260 and on the side of the regulating damper away from the air inlet, and is used for heating. With the above structure, when the regulating damper is closed and the heating air passage 260 is open, the cold air passage 250 is open. The air flowing in from the air inlet is cooled by the evaporator 270 before entering the cold air passage 250, thus achieving the cooling function of the cold air passage 250. When the regulating damper is closed and the cold air passage 250 is closed, the heating air passage 260 is open. The air flowing in from the air inlet passes through the evaporator 270 and enters the heating air passage 260, where it is heated by the heating core 280, thus achieving the cooling function of the cold air passage 250. This allows the air conditioning unit to achieve the effect of cooling or heating through internal and external circulation.

[0041] In this embodiment, the two warm air channels 260 are centrally located and adjacent to each other, that is, located on both sides of the double-layer flow baffle 240. The two cold air channels 250 are respectively located on both sides of the two warm air channels 260. Adjusting the damper can completely seal the middle part to close the warm air channel 260, or completely seal the cold air channels 250 on both sides to close the cold air channels 250.

[0042] Optionally, adjacent warm air ducts 260 and cold air ducts 250 are separated by baffles to ensure that the two ducts do not interfere with each other.

[0043] Optionally, the aforementioned internal circulation channel 220 and external circulation channel 230 share the evaporator 270 and the warm air core 280. That is, the evaporator 270 and the warm air core 280 are both installed through the double-layer flow baffle 240 and sealed to the double-layer flow baffle 240, thereby increasing the scope of use of the components, reducing the number of components, and improving space utilization.

[0044] Furthermore, the air conditioning unit can be a multi-drive air conditioning unit, that is, it has multiple channels to realize independent adjustment of the air conditioning temperature and function of each area in the passenger compartment, thereby improving the comfort of the car passenger compartment.

[0045] Specifically, the housing 210 is also provided with at least one partition plate, which divides the housing 210 into at least two air conditioning channels. At least two regulating dampers are provided accordingly. The regulating dampers and air conditioning channels are set one-to-one. The regulating dampers are sealed in the air conditioning channels, which can realize the multi-drive function of the air conditioning unit.

[0046] Furthermore, the aforementioned housing 210 is also equipped with a slide assembly, to which the regulating damper is slidably connected, thereby achieving a sliding connection between the regulating damper and the housing 210 and improving the connection stability between the two, ensuring the sealing performance of the regulating damper. It is understood that the number of slide assemblies is related to the number of regulating dampers, and can be adaptively designed according to the number of regulating dampers.

[0047] Because air conditioning units are designed as dual-flow air conditioners or multi-drive air conditioners to improve their reliability, performance and comfort, the structure and size of the components of the air conditioning unit are increased.

[0048] To reduce the size of the air conditioning unit and improve its performance, this embodiment provides an adjustable damper, which is installed inside the air conditioning unit to realize the opening and closing of the internal and external circulation dampers. Two dampers can be driven simultaneously by a single drive component. It has excellent sealing performance, reduces the number of parts, saves costs, occupies little space, and improves space utilization.

[0049] Specifically, such as Figure 3As shown, the regulating damper includes a drive assembly 10, a first damper 20, and a second damper 30. The drive assembly 10 is located inside the air conditioning unit. Both the first damper 20 and the second damper 30 are arc-shaped structures and are both driven and sealed to the drive assembly 10. The second damper 30 is positioned opposite the first damper 20. The first damper 20 is sealed and slidably disposed within the external circulation channel 230, and the second damper 30 is sealed and slidably disposed within the internal circulation channel 220. The drive assembly 10 can drive the first damper 20 and the second damper 30 to move closer to or further away from each other along their extension direction, selectively opening the corresponding cold air channel 250 or the corresponding warm air channel 260. That is, when the first damper 20 and the second damper 30 are close to each other and sealed, the first damper 20 will... The warm air passage 260 in the external circulation passage 230 is closed, and the cold air passage 250 is opened, realizing the cooling cycle in the external circulation passage 230. The second damper 30 closes the warm air passage 260 in the internal circulation passage 220 and opens the cold air passage 250, realizing the cooling cycle in the internal circulation passage 220. When the first damper 20 and the second damper 30 can move away from each other, the first damper 20 closes the cold air passage 250 in the external circulation passage 230 and opens the warm air passage 260, realizing the heating cycle in the external circulation passage 230. The second damper 30 closes the cold air passage 250 in the internal circulation passage 220 and opens the warm air passage 260, realizing the heating cycle in the internal circulation passage 220.

[0050] The air conditioning unit in this embodiment uses the aforementioned regulating damper, such as Figure 2 As shown in the diagram, the arrows indicate the direction of gas flow. When cooling is required, the first damper 20 and the second damper 30 move towards each other, completely closing the warm air passage 260 and opening the cold air passage 250 to achieve cooling. Figure 1 As shown in the figure, the arrows indicate the direction of gas flow. When heating is required, the second damper 30 moves in opposite directions, causing the first damper 20 and the second damper 30 to completely close the cold air passage 250 and open the warm air passage 260, thus achieving heating. Furthermore, the first damper 20 and the second damper 30 are driven by the same drive component 10, reducing the number of drive components 10 and achieving synchronous operation of the two dampers, resulting in higher reliability. Moreover, this damper abandons the existing fan-shaped damper structure and is formed by two arc-shaped dampers interlocking with each other, occupying less area and improving space utilization.

[0051] In this embodiment, the first damper 20 and the second damper 30 have the same structure. Both the first damper 20 and the second damper 30 include a frame structure and a baffle. The frame structure of the first damper 20 and the frame structure of the second damper 30 are opposite to each other and staggered. The frame structure is driven to the drive assembly 10. The baffle is set on the frame structure to form a windproof part. The part of the frame structure without the baffle is the ventilation part. The frame structure of the first damper 20 and the frame structure of the second damper 30 can be close to each other or far away from each other to selectively seal the windproof part in the corresponding cold air channel 250 or the corresponding warm air channel 260.

[0052] When the air conditioning unit is cooling, the first damper 20 and the second damper 30 move towards each other, and the baffle seals the warm air passage 260. At this time, the end of the frame structure of the first damper 20 away from the baffle connects with the end of the baffle of the second damper 30 facing the ventilation part, and the two are sealed together; the end of the frame structure of the second damper 30 away from the baffle connects with the end of the baffle of the first damper 20 facing the ventilation part, and the two are sealed together; and the other side of the frame structure of both dampers facing the baffle is sealed together with the drive assembly 10, so that the warm air passage 260 is completely blocked and the cold air passage 250 is opened.

[0053] When the air conditioning unit is heating, the first damper 20 and the second damper 30 move in opposite directions, and the baffle seals the cold air passage 250. At this time, one end of the frame structure of the two dampers is sealed to the inner wall of the box 210, and the other end is sealed to the drive assembly 10. The end of the baffle facing the ventilation part is sealed to the side wall of the warm air passage 260, so as to completely block the cooling passage and open the warm air passage 260.

[0054] Specifically, such as Figures 1 to 3 As shown, the first damper 20 includes a first frame structure 21 and a first baffle 22, so that the first damper 20 is divided into a first windproof part and a first ventilation part; the second damper 30 includes a second frame structure 31 and a second baffle 32, so that the second damper 30 is divided into a second windproof part and a second ventilation part.

[0055] To ensure a sealed connection between the first damper 20 and the second damper 30 and the warm air duct 260 and the cold air duct 250, in this embodiment, as follows: Figures 1 to 3 As shown, the regulating damper also includes two sealing components, which are respectively disposed on the first damper 20 and the second damper 30. The sealing components include three sealing elements 50, which are respectively disposed at both ends of the frame structure along its own extension direction and at one end of the baffle facing the ventilation part. This can seal both ends of the frame structure along its own extension direction, as well as the connection between the baffle and the ventilation part, so as to achieve the sealing effect of the baffle on the warm air passage 260 and the cold air passage 250.

[0056] In order to achieve a sliding connection between the regulating damper and the inner wall of the air conditioning unit 210, in this embodiment, as follows: Figures 1 to 3 As shown, both the first damper 20 and the second damper 30 include a slide rail 60. The slide rail assembly is provided with at least two slide grooves 211. The slide rails 60 of the first damper 20 and the slide rails 60 of the second damper 30 are arranged opposite to each other and staggered. The slide rails 60 are slidably connected to the slide grooves 211 to realize the sliding connection between the first damper 20 and the housing 210, and to realize the sliding connection between the second damper 30 and the housing 210.

[0057] Specifically, in this embodiment, each damper is provided with two slide rails 60, that is, each frame structure is provided with two slide rails 60, and the slide assembly is provided with four slide grooves 211 to ensure the stability of the damper during sliding operation and improve the reliability of the damper in blocking the channel.

[0058] Furthermore, the slide rail 60 includes a track 61 and several elastic members 62 disposed on the track 61. The track 61 abuts against one wall of the slide groove 211, and the elastic members 62 abut against the other wall of the slide groove 211, so that the slide rail 60 is slidably connected within the slide groove 211. The arrangement of the elastic members 62 makes the slide rail 60 and the wall of the slide groove 211 elastic, which can eliminate the gap between the slide groove 211 and the slide rail 60. At the same time, one end of the elastic member 62 abuts against the wall of the slide groove 211, which can reduce friction and improve the sliding effect between the slide rail 60 and the slide groove 211.

[0059] Specifically, the elastic element 62 has an arched structure, with both ends connected to the track 61, and its highest point abutting against another groove wall of the slide 211, thus realizing a point connection between the elastic element 62 and the groove wall of the slide 211.

[0060] Furthermore, the aforementioned slide 211 is specifically divided into a first section, a second section, and a third section extending from the side near the gear shaft 11 towards the other side. Each section has the same dimensions, including the dimensions of the windbreak and the ventilation section. The first section is located between the slide 211 and the gear shaft 11 on the side near the gear shaft 11. The second and third sections are sequentially located between the gear shaft 11 and the inner wall of the housing 210. The first damper 20 and the second damper 30 can switch between two states within the slide 211. The three seals 50 slide within the first, second, and third sections respectively. When the first damper 20 or the second damper 30 is in the first or second section, the warm air passage 260 is closed; when the first damper 20 or the second damper 30 is in the second or third section, the cold air passage 250 is closed.

[0061] In order to achieve the driving effect of the drive component 10 on the first damper 20 and the second damper 30, in this embodiment, as follows: Figure 3As shown, the drive assembly 10 includes a drive member and a gear shaft 11. The gear shaft 11 is located at the output end of the drive member and has at least two gear sections. The frame structure has at least two gear racks 40. The gear racks 40 and the gear sections are arranged in a one-to-one correspondence and are meshed. The drive member can drive the gear shaft 11 to rotate, thereby causing the first damper 20 and the second damper 30 to move closer to or further away from each other. The above arrangement can realize the drive member driving the first damper 20 and the second damper 30.

[0062] Specifically, the drive unit is mounted on the housing 210, the gear shaft 11 passes through the double-layer flow baffle 240, and the first damper 20 and the second damper 30 are both sealed to the gear shaft 11.

[0063] Furthermore, the drive assembly 10 also includes a drive gear 12 and a driven gear 13. The drive gear 12 is fixedly connected to the output end of the drive member, and the driven gear 13 is sleeved and fixedly connected to the gear shaft 11. The drive gear 12 and the driven gear 13 are meshed together. The drive member can drive the drive gear 12 and drive the driven gear 13 to rotate the gear shaft 11. This allows the drive member to be offset, ensuring installation space and allowing the rotation speed of the gear shaft 11 to be adjusted.

[0064] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. Damper for regulating the air flow, characterized in that The air conditioning unit is located inside an air conditioning unit and has an internal circulation channel (220) and an external circulation channel (230). Both the internal circulation channel (220) and the external circulation channel (230) are equipped with a cold air channel (250) and a warm air channel (260). The regulating damper includes: A drive assembly (10) is disposed inside the air conditioning unit; The first damper (20) is driven to be connected to the drive assembly (10) and sealed to the drive assembly (10). The first damper (20) has an arc-shaped structure and is sealed and slidably disposed in the external circulation channel (230). The second damper (30) is sealed and driven to be connected to the drive assembly (10) and is disposed opposite to the first damper (20). The second damper (30) has an arc-shaped structure. The second damper (30) is sealed and slidably disposed in the inner circulation channel (220). The drive assembly (10) can drive the first damper (20) and the second damper (30) to move closer to each other or further away from each other along their own extension direction, so as to selectively open the corresponding cold air channel (250) or the corresponding warm air channel (260). The first damper (20) and the second damper (30) are interlocked. The first damper (20) and the second damper (30) have the same structure. Both the first damper (20) and the second damper (30) include a frame structure and a baffle. The frame structure of the first damper (20) and the frame structure of the second damper (30) are opposite to each other and staggered. The frame structure is driven to the drive assembly (10). The baffle is set on the frame structure to form a windproof part. The part of the frame structure without the baffle is a ventilation part. The frame structure of the first damper (20) and the frame structure of the second damper (30) can approach each other or move away from each other to selectively seal the windproof part in the corresponding cold air channel (250) or the corresponding warm air channel (260).

2. The regulating damper according to claim 1, characterized in that, The drive assembly (10) includes a drive member and a gear shaft (11). The gear shaft (11) is located at the output end of the drive member. The gear shaft (11) has at least two gear sections. The frame structure has at least two gear racks (40). The gear racks (40) and the gear sections are arranged in a one-to-one correspondence. The gear racks (40) and the gear sections are meshed together. The drive member can drive the gear shaft (11) to rotate, so as to drive the first damper (20) and the second damper (30) to move closer to or further away from each other.

3. The regulating damper according to claim 2, characterized in that, The drive assembly (10) further includes a drive gear (12) and a driven gear (13). The drive gear (12) is fixedly connected to the output end of the drive member, and the driven gear (13) is sleeved and fixedly connected to the gear shaft (11). The drive gear (12) and the driven gear (13) are meshed together. The drive member can drive the drive gear (12) and drive the driven gear (13) to drive the gear shaft (11) to rotate.

4. The regulating damper according to claim 3, characterized in that, The regulating damper also includes two sealing components, which are respectively disposed on the first damper (20) and the second damper (30). The sealing components include three sealing elements (50), which are respectively disposed at both ends of the frame structure along its own extension direction and at one end of the baffle facing the ventilation section.

5. The regulating damper according to any one of claims 1-4, characterized in that, Both the first damper (20) and the second damper (30) include slide rails (60), and the air conditioning unit is provided with at least two slide grooves (211). The slide rails (60) of the first damper (20) and the slide rails (60) of the second damper (30) are opposite to each other and staggered. The slide rails (60) are slidably connected to the slide grooves (211).

6. The regulating damper according to claim 5, characterized in that, The slide rail (60) includes a track (61) and a plurality of elastic members (62) disposed on the track (61). The track (61) abuts against one wall of the slide groove (211), and the elastic members (62) abut against the other wall of the slide groove (211).

7. An air conditioning unit, characterized in that, The device includes a housing (210) and several regulating dampers as described in any one of claims 1-6. The housing (210) is provided with a double-layer flow baffle (240), which divides the housing (210) into an inner circulation channel (220) and an outer circulation channel (230). Both the inner circulation channel (220) and the outer circulation channel (230) are provided with a cold air channel (250) and a warm air channel (260). The first damper (20) is sealed in the outer circulation channel (230), and the second damper (30) is sealed in the inner circulation channel (220).

8. The air conditioning unit according to claim 7, characterized in that, The air conditioning unit also includes an evaporator (270) and a warm air core (280). The evaporator (270) is disposed between the air inlet of the unit (210) and the regulating damper. The warm air core (280) is disposed in the warm air channel (260) and located on the side of the regulating damper away from the air inlet. The first damper (20) and the second damper (30) can approach each other and seal each other to open the corresponding cold air passage (250); or the first damper (20) and the second damper (30) can move away from each other to open the corresponding warm air passage (260).

9. The air conditioning unit according to claim 7 or 8, characterized in that, The housing (210) is also provided with at least one partition plate, which divides the housing (210) into at least two air conditioning channels. At least two regulating dampers are provided accordingly. The regulating dampers and the air conditioning channels are arranged in a one-to-one correspondence. The regulating dampers are sealed in the air conditioning channels.

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