Ventilation structure, air conditioning system

Abstract

The utility model discloses a ventilation structure, air conditioning system. Among them ventilation structure, include: ventilation frame, outside flange, with ventilation frame inboard fixed connection, for the door character frame shape of one end opening, inner flange is used for fixed baffle, the inner flane is set in the one end of outside flange opening, and its both sides can move along the opposite two side walls of outside flange to change the size of the ventilation opening of ventilation frame that baffle blocks, power component is connected with the one side of inner flange away from the opening, drives inner flane moves. The utility model adopts the movable structure of drawer to adjust the size of the ventilation opening of ventilation frame, and the structure is simpler, and the maintenance is easier.

Description

Technical Field

[0001] This utility model relates to the technical field of refrigeration equipment, and in particular to a ventilation structure and air conditioning system with an adjustable vent size. Background Technology

[0002] In traditional air conditioning systems, the air outlets or inlets are usually fixed, resulting in a narrow air supply range. To solve this technical problem, existing technologies have also developed solutions that allow for adjustable air outlet sizes.

[0003] Taking the prior art with publication number CN212987426U as an example, in order to change the size of the air outlet, an adjustment plate is set at the air outlet. The size of the air outlet is changed by driving the adjustment plate to move through a drive mechanism. The drive mechanism includes a drive motor, a drive linkage, and a slide rail. The drive motor is connected to the adjustment plate through the drive linkage. The edge of the adjustment plate cooperates with the slide rail. The drive motor drives the adjustment plate to move along the slide rail. The drive linkage includes a first linkage and a second linkage. One end of the first linkage is connected to the adjustment plate. The other end of the first linkage is rotatably connected to one end of the second linkage. The other end of the second linkage is connected to the motor shaft of the drive motor. The drive motor is set on the front cover plate.

[0004] The existing drive mechanism has a relatively complex structure. It uses a first link and a second link to rotate and connect the drive motor and the adjustment plate respectively. It also requires the cooperation of the slide rail. The number of parts is too large, which increases the assembly complexity. Moreover, the drive motor is mounted on the front cover plate. The vibration of the motor will affect the up and down movement of the front cover plate, resulting in excessive friction between the adjustment plate and the slide rail. Furthermore, how to accurately synchronize the two motors is also a problem.

[0005] Therefore, how to provide a ventilation structure with a relatively simple structure that can adjust the size of the air vents is a technical problem to be solved. Utility Model Content

[0006] In order to solve the technical problem of relatively complex structures for changing the size of air vents in the prior art, this utility model proposes a ventilation structure and an air conditioning system.

[0007] The ventilation structure of this utility model includes:

[0008] Ventilation frame;

[0009] The outer flange, which is fixedly connected to the inner side of the ventilation frame, is a U-shaped frame with one end open;

[0010] The inner flange is used to fix the wind baffle. The inner flange is located at one end of the opening of the outer flange, and its two sides can move along the two opposite side walls of the outer flange to change the size of the ventilation opening of the ventilation frame blocked by the wind baffle.

[0011] A power unit is connected to the side of the inner flange away from the opening, driving the inner flange to move.

[0012] Furthermore, the outer flange has fixed slide rails on its two opposite side walls, and the inner flange has movable slide rails on both sides that are slidably connected to the fixed slide rails.

[0013] Furthermore, the fixed slide rail includes a first L-shaped guide rail seat and rotating wheels fixed at intervals on the first L-shaped guide rail seat; the movable slide rail includes a second L-shaped guide rail seat, the second L-shaped guide rail seat and the first L-shaped guide rail seat are centrally symmetrically arranged, and the periphery of the rotating wheel contacts two opposite sides of the first and second L-shaped guide rail seats.

[0014] Furthermore, the rotating wheel is a roller.

[0015] Furthermore, the roller is a metal roller, and the sides of the first L-shaped guide rail seat and the second L-shaped guide rail seat that are in contact with the circumference of the roller are provided with flexible layers.

[0016] Furthermore, the flexible layer has artificial fluff.

[0017] Furthermore, the surface of the artificial fleece is coated with lubricating grease.

[0018] Furthermore, the power component is a hydraulic actuator, and the output end of the hydraulic actuator is connected to the base plate on the side of the inner flange away from the opening of the outer flange.

[0019] The air conditioning system proposed in this utility model adopts the ventilation structure described in any one of the above technical solutions for air outlet and / or air supply.

[0020] This invention utilizes a drawer-type sliding connection structure formed by the inner and outer flanges to allow for adjustable ventilation opening size, thus adapting to adjustments in parameters such as airflow and air supply area in systems like fresh air systems and air conditioning systems. The inner flange's position is adjusted via a power component directly connected to it. Compared to existing technologies, this invention has a simpler structure. Furthermore, it employs a slide rail structure to achieve a sliding connection between the inner and outer flanges. The slide rails utilize rollers for sliding friction, resulting in a lower coefficient of friction and longer component lifespan compared to existing technologies. Moreover, each part of this invention features a modular design, such as the inner flange being a module and the outer flange being a module, facilitating disassembly and maintenance. Attached Figure Description

[0021] The present invention will now be described in detail with reference to the embodiments and accompanying drawings, wherein:

[0022] Figure 1This is an overall schematic diagram of an embodiment of the present invention.

[0023] Figure 2 yes Figure 1 A schematic diagram of the inner flange after it moves downwards.

[0024] Figure 3 This is a schematic diagram of the structure of the inner flange and outer flange cooperating with each other according to an embodiment of the present invention.

[0025] Figure 4 yes Figure 3 A three-dimensional diagram from another angle.

[0026] Figure 5 yes Figure 3 A schematic diagram of one side.

[0027] Figure 6 This is a partial schematic diagram of an embodiment of the present invention.

[0028] Figure 7 This is a partial enlarged view of an embodiment of the present invention, which includes artificial plush.

[0029] Figure 8 This is a control flowchart of an application example of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Ventilation opening; 2. Outer flange; 3. Inner flange (13); 4. Hydraulic control box; 5. Hydraulic telescopic cylinder; 6. Baffle plate; 7. Air inlet panel.

[0032] 21. Roller pin; 22. Bracket fastening self-tapping screw; 23. Outer flange bracket; 24. Metal roller; 25. Outer flange side plate assembly; 26. Fixed slide rail; 27. Artificial fleece.

[0033] 31. Inner flange support; 32. Sliding rail; 33. Inner flange side plate assembly. Detailed Implementation

[0034] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0035] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0036] The ventilation structure provided by this utility model is relatively simple, including a ventilation frame, an outer flange, an inner flange, and a power component.

[0037] The outer flange is fixedly connected to the inner side of the ventilation frame and is a U-shaped frame with one end open. The U-shaped frame refers to the general shape of the outer flange and does not limit the placement direction of the outer flange. For example, the outer flange can be open on the left side, that is, the U-shaped frame can be rotated 90° in its plane so that the opening faces to the left. Of course, the outer flange can also be open at the top, that is, the U-shaped frame can be rotated 180° in its plane so that the opening faces upward. Such are all various placement directions of the U-shaped outer flange, and all of them are within the protection scope of this utility model.

[0038] The inner flange is used to fix the baffle plate. It is located at one end of the outer flange opening, and its two sides can move along the two opposite side walls of the outer flange to change the size of the ventilation opening in the ventilation frame blocked by the baffle plate. In simple terms, the relationship between the inner and outer flanges is similar to the relationship between the three outer panels of a drawer and the drawer itself; by pulling out the inner flange, the size of the hollow portion of the outer flange can be changed.

[0039] The power unit is connected to the side of the inner flange furthest from the opening, driving the inner flange to move. Since the inner flange moves linearly, and the power unit is directly connected to the inner flange, the power unit can be a linear motor, telescopic cylinder, etc.

[0040] The above embodiments show that the power component of this utility model is directly connected to the inner flange, and the output of the power component is consistent with the movement direction of the inner flange. Therefore, there is no need for other auxiliary connection mechanisms such as multi-link structures, and there are fewer parts. Moreover, the power component of this utility model is not installed on the moving inner flange, so it will not be affected by the movement of the power component relative to the inner flange during operation.

[0041] In a further embodiment, fixed slide rails are provided on the two opposite side walls of the outer flange, and movable slide rails are provided on both sides of the inner flange, which are slidably connected to the fixed slide rails one by one.

[0042] Compared to the existing technology where the two sides of the adjusting plate directly slide against the slide groove, this embodiment is clearly more robust. This is because the adjusting plate in the existing technology is easily deformed by airflow, and if the panel is not a perfectly flat surface, the friction between the two sides of the adjusting plate and the slide groove increases, adding resistance to adjusting the size of the ventilation opening. In contrast, this invention, through the cooperation of fixed and movable slide rails, is unaffected by airflow, resulting in smoother movement between the inner and outer flanges.

[0043] This invention does not limit the specific structure of the slide rail. Those skilled in the art can use slide rails commonly used in the prior art, such as fixed slide rails and movable slide rails used in drawers.

[0044] Based on the above embodiments, this utility model further provides a preferred embodiment of the slide rail of this utility model. In this embodiment, the fixed slide rail includes a first L-shaped guide rail seat and rotating wheels fixed at intervals on the first L-shaped guide rail seat; the movable slide rail includes a second L-shaped guide rail seat, the second L-shaped guide rail seat and the first L-shaped guide rail seat are centrally symmetrically arranged, and the periphery of the rotating wheel contacts the two opposite sides of the first and second L-shaped guide rail seats.

[0045] In this embodiment, the first L-shaped guide rail seat and the second L-shaped guide rail seat are centrally symmetrically arranged. This means that when the first L-shaped guide rail seat and the second L-shaped guide rail seat have mutually opposite parts in the length direction, the cross section formed by these parts perpendicular to the length direction is square. The two interior angles of the first L-shaped guide rail seat and the second L-shaped guide rail seat are respectively located on the diagonal of this square. The first L-shaped guide rail seat and the second L-shaped guide rail seat cooperate and slide with each other. The structure is simple and easy to process.

[0046] In this embodiment, sliding is not achieved through friction between edges and surfaces or surfaces, but rather through the rotation of a wheel to achieve relative movement between the first L-shaped guide rail and the second L-shaped guide rail. Compared to existing technologies, this results in less friction.

[0047] In other embodiments, the first and second L-shaped guide rail seats can also be replaced by other structures. For example, the outer flange is processed to have only a side plate that contacts the circumference of the roller, and the roller is directly mounted on the outer flange. Alternatively, the movable slide rail can be a strip plate that contacts the circumference of the roller, and other cover plates can be used to allow the strip plate to move between the outer flange and the inner flange along the circumferential tangent direction of the roller.

[0048] In one specific embodiment, the rotating wheel is a roller.

[0049] Compared to existing technologies, the core advantage of this embodiment lies in achieving a revolutionary shift from "sliding to rolling." It transforms the harsh "surface friction" between components into "point-contact rolling friction." This makes the inner flange move smoothly and effortlessly, significantly reducing friction. This not only brings a relatively quiet and smooth experience without any jamming, but also generates multiple advantages. For example, extremely low wear ensures an ultra-long service life, precise and stable motion control enhances the accuracy of air intake or exhaust adjustment, and the load on the power components is also reduced, achieving both energy saving and noise reduction.

[0050] In a further embodiment, the roller is a metal roller, and a flexible layer is provided on the sides of the first L-shaped guide seat and the second L-shaped guide seat that contact the periphery of the roller. The flexible layer can be a fabric layer or the like, which can enhance friction while reducing noise from hard frictional contact between the metal roller and the first L-shaped guide seat and the second L-shaped guide seat.

[0051] In a preferred embodiment, the flexible layer has artificial fibers. This embodiment combines the advantages of lubrication and precise transmission. The flexible artificial fibers of the fixed slide rail complement the hard contact transmission of the moving slide rail. The fixed slide rail reduces roller wear and noise, while the contact between the moving slide rail and the artificial fibers ensures transmission precision. Together, they enable the power component to drive the inner flange movement efficiently and smoothly, meeting the needs of frequent adjustments of drawer-type air vents while maintaining long-term transmission stability and preventing transmission failures from affecting the air conditioning's air delivery effect.

[0052] Furthermore, lubricating grease can be coated onto the surface of the artificial plush.

[0053] After the artificial fibers are coated with lubricating grease, the grease adheres to the gaps between the fibers, forming a durable oil film. When the metal roller rotates, the artificial fibers maintain continuous contact with the metal roller surface, and the oil film evenly covers the metal roller, preventing wear caused by direct friction between the metal roller and effectively controlling the coefficient of friction. For example, when the coefficient of friction needs to be adjusted in some situations, it can be adjusted by parameters such as the fiber length and roller width. Currently, experimental measurements show that the coefficient of friction can usually be controlled within 0.005, far lower than the 0.1 of traditional hard contact. At the same time, the flexible fibers have a certain degree of elasticity, which can buffer the impact force when the metal roller starts and stops, extending the service life of the roller and allowing the metal roller to have a design life of ≥50,000 rotations.

[0054] For example, when the ventilation structure of this utility model is applied to a commercial air conditioning system, No. 3 lithium-based grease can be applied to the surface of the artificial fluff. The temperature range of No. 3 lithium-based grease is -20℃ to 120℃, which can adapt to the operating environment of the commercial air conditioning system.

[0055] In other embodiments, rubber rollers with good elasticity can also be used to achieve transmission stability. However, rubber rollers are more prone to aging than metal rollers, and therefore have a shorter service life.

[0056] In some embodiments, the rotating wheel can be a gear, and the sides of the first L-shaped guide rail and the second L-shaped guide rail that contact the circumference of the roller are provided with locking teeth that mesh with the gear. This method can also achieve stable operation of the inner flange, but this method requires high machining precision. During operation, the locking teeth or gears will also wear due to environmental factors or the age of use, and therefore their service life is much shorter than that of metal rollers.

[0057] In addition to the types of power components listed above, in a preferred embodiment of this invention, the power component is a hydraulic actuator, the output end of which is connected to the base plate on the side of the inner flange furthest from the outer flange opening. The hydraulic actuator can stably drive the inner flange to move relative to the outer flange.

[0058] This utility model also protects the corresponding air conditioning system, which adopts the ventilation structure of any of the above technical solutions for air intake and / or air outlet.

[0059] Besides air conditioning systems, this invention can also be used in other places requiring ventilation, such as the air intake and / or exhaust of a fresh air conditioning system, and can also be applied to windows in homes. It can adjust the size of the ventilation opening between the corresponding space and the corresponding heat exchanger, or adjust the size of the ventilation opening between the corresponding space and the outside.

[0060] The following uses a commercial air conditioner as an example, combined with the accompanying drawings, to further illustrate a specific application scenario and the specific structure of the ventilation structure of this utility model.

[0061] like Figure 1 , Figure 2 As shown, in this embodiment, the ventilation structure of this invention is applied to the ventilation opening of the air inlet channel for return air. An outer flange is fixed above the ventilation opening, and an inner flange that can move up and down is connected below the outer flange. A baffle plate that can move with the inner flange is fixed on the inner flange, and the bottom surface of the inner flange is connected to a hydraulic device. The hydraulic device includes a hydraulic control box, a hydraulic telescopic cylinder, and a hydraulic piston rod. Figure 1 The inner flange is positioned relatively close to the outer flange, resulting in a smaller ventilation opening. Figure 2 The inner flange is located relatively far from the outer flange, which makes the ventilation opening relatively large.

[0062] like Figure 3As shown, the outer flange includes an outer flange side plate assembly located at the top, which surrounds the upper part of the vent from three sides and is fixedly connected to the vent frame. The outer flange also includes an outer flange bracket fixed to the outer flange side plate assembly, which is vertically positioned in the figure. The inner flange includes an inner flange side plate assembly located at the bottom, with inner flange brackets connected to both sides of the inner flange side plate assembly.

[0063] like Figure 4 As shown, a fixed slide rail is fixed on the outer flange bracket, and a movable slide rail is fixed on the inner flange bracket.

[0064] The figure shows that the fixed slide rail in this embodiment includes a first L-shaped guide rail seat and metal rollers. The movable slide rail is located inside the inner flange support and is not shown in the figure. The fit between the movable slide rail and the metal slide rail is not limited to the fit between the outer flange and the inner flange. This slide rail structure can also be used when other panels need to slide together as the inner flange moves, such as... Figure 1 , Figure 2 On the lower left side, part of the panel is hidden. This part of the outer structure and the inner structure also need to slide together. Therefore, the slide rail structure of any of the above embodiments of this utility model can also be used.

[0065] Figure 5 This is a schematic diagram of the slide rail connection that conceals the inner flange support. The diagram shows the first L-shaped guide rail seat and the second L-shaped guide rail seat working together in a centrally symmetrical arrangement, enclosing the metal rollers within.

[0066] Figure 6 The portion of the second L-shaped guide rail seat parallel to the inner flange support is further concealed. It can be seen that the side plates of the first and second L-shaped guide rail seats are positioned around the metal rollers, and these side plates are parallel to each other. In this embodiment, three roller pins are fixed to the outer flange support and used to secure the metal rollers; the three metal rollers are used for slide rail transmission.

[0067] Figure 7 yes Figure 6 Detailed magnified image, from Figure 7As can be seen, artificial fibers are provided on the side plates of the first and second L-shaped guide rails. The serrated edges shown in the figure are actually flexible artificial fibers made of nylon that have been pasted on. These artificial fibers are not decorative, but serve a dual purpose through "flexible contact." On the one hand, the artificial fibers can fill in minor imperfections on the surface of the metal roller, reducing vibration and noise caused by hard contact and making the metal roller rotate more smoothly. On the other hand, by periodically applying No. 3 lithium-based lubricating grease (temperature resistant -20~120℃, suitable for commercial air conditioning operating environments), the No. 3 lithium-based lubricating grease will be absorbed into the gaps between the fibers to form a durable oil film. When the metal roller rotates, the artificial fibers are in continuous contact with the surface of the metal roller, and the oil film evenly covers the roller, avoiding wear caused by direct friction between the metal roller and controlling the coefficient of friction to within 0.005, which is far lower than the 0.1 of traditional hard contact. Meanwhile, the flexible artificial fleece has a certain degree of elasticity, which can buffer the impact force when the metal roller starts and stops, extend the service life of the metal roller, and make the design life of the metal roller ≥ 50,000 rotations.

[0068] The movable slide rail moves along the inner flange side plate. It has a hard metal-to-metal contact with the metal rollers. This design is a typical roller-slide rail transmission mechanism. The fixed slide rail and the movable slide rail work together to provide a fixed motion trajectory. The metal rollers are embedded in the slide rail and roll, which greatly reduces frictional resistance. This allows the power component to easily drive the inner flange to move along the predetermined trajectory. The power of the power component is converted into a "driving force along the slide rail direction", which drives the inner flange to move. The contact structure between the metal rollers and the slide rail can distribute the load weight. Even when carrying heavy objects, it can maintain smooth movement, avoid deviation, and ensure transmission accuracy.

[0069] like Figure 8 As shown, the return air temperature sensor of a commercial air conditioning unit is usually installed in the air intake duct, which can also be called the return air duct. The return air temperature sensor is usually 1.5-2m away from the air outlet to avoid local airflow interference. The return air temperature sensor monitors the indoor return air temperature R in real time and continuously compares it with the preset steady-state target temperature T (such as 25℃ designed for commercial air conditioning).

[0070] When the unit is in the initial start-up state, the indoor temperature may rise to 28℃ due to a long shutdown time, i.e., T=25℃<R=28℃. Or, after the unit has been running normally for a period of time, if the indoor load increases, the indoor return air temperature R will rise from 25℃ to 28℃. If the condition of R>T is still met, the return air temperature sensor can generate a corresponding signal, such as a start-up adjustment signal. This signal is transmitted to the hydraulic control box 15 through a shielded signal line. The shielding layer of the shielded signal line can effectively isolate the electromagnetic interference generated by motors, frequency converters and other equipment in the industrial environment and avoid signal distortion. For example, the transmission error of some shielded signal lines is controlled within ±0.1℃.

[0071] The hydraulic control box activates the hydraulic unit, causing the hydraulic telescopic cylinder to move the inner flange. The hydraulic telescopic cylinder 16 within the hydraulic unit then moves the inner flange 13 up and down. The hydraulic system inputs high-pressure oil into the hydraulic telescopic cylinder, pushing the piston rod within the cylinder in a linear motion along the cylinder's barrel. Specifically, the piston rod extends when the flange rises and retracts when it descends, or returns with the help of the load's own weight. The top of the piston rod is rigidly connected to the inner flange, such as by bolts. The linear motion of the piston rod is directly converted into the raising and lowering of the inner flange. The movable air inlet panel 18 on the inner flange is paired with a sliding guide rail. This sliding guide rail, in conjunction with the fixed guide rail on the outer flange, prevents deviation during raising and lowering, ensuring that the power of the hydraulic telescopic cylinder is precisely converted into the up and down movement of the inner flange.

[0072] Furthermore, a displacement sensor can be installed to detect the position of the inner flange. This sensor can collect real-time data on the lifting height of the inner flange on the side furthest from the hydraulic telescopic cylinder. This data is continuously transmitted as electrical signals to the main control module inside the hydraulic control box. The hydraulic control box can control the required movement distance of the hydraulic telescopic cylinder by calling preset "outlet height-temperature adjustment parameters," such as the air supply coverage range and airflow attenuation coefficient corresponding to different heights, combined with the difference between the currently measured outlet height and the target outlet height.

[0073] For example, if the target air vent height is 1.8m and the currently measured air vent height is 1.5m, the control box calculates the extension length of the hydraulic piston rod based on the transmission ratio of the hydraulic cylinder piston rod. For instance, if a transmission ratio of 5mm air vent height corresponds to every 10mm extension / retraction, then the hydraulic piston rod needs to be extended by 60mm.

[0074] When the hydraulic telescopic cylinder moves the inner flange, the displacement sensor continuously provides real-time height feedback. Once the feedback value perfectly matches the target setting value (e.g., error ≤ 0.5mm), meeting the equipment accuracy requirements, the control box can immediately issue a stop signal. This cuts off the oil inlet circuit of the hydraulic telescopic cylinder and triggers the hydraulic lock in the circuit (e.g., a one-way valve group). By locking the pressure of the hydraulic oil in the cylinder, it prevents the oil-push piston rod from shifting due to its own weight or external force, ensuring that the oil-push piston rod remains stationary at its current position and the air outlet remains stable at the set height.

[0075] Subsequently, the core operating parameters of the unit are continuously collected, including but not limited to return air temperature (i.e., the R value mentioned above), outlet air volume, compressor operating frequency, and fan speed. When these parameters are within the preset "stable threshold range" for 3-5 consecutive minutes (e.g., air volume fluctuation ≤5%, compressor frequency stable at 50Hz), the unit is considered to be operating stably, and dynamic adjustments can be made according to the specific needs of the unit.

[0076] During the dynamic adjustment phase, the control box can prioritize comparing the currently measured indoor return air temperature R with the steady-state target temperature T.

[0077] If T≥R, meaning the indoor temperature has reached or exceeded the required value, it indicates that the air supply effect corresponding to the current vent height can meet the temperature maintenance requirements. The control box will maintain the hydraulic lock in the locked state, and the hydraulic telescopic cylinder will continue to maintain its original position without performing any action.

[0078] If, after the unit stabilizes, the R value exceeds the allowable limit of the T value, such as R > T + 0.5℃ or R < T - 0.5℃, then reverse regulation is triggered.

[0079] For example, when R > T + 0.5℃, meaning the indoor temperature is too high, it indicates that the current vent height may cause the air supply to concentrate in a local area, and the hot air cannot be effectively diffused. In this case, the control box can control the hydraulic unit to move the inner flange in the opposite direction of "reducing the height" (such as from 1.8m to 1.5m) to expand the air supply coverage and accelerate the circulation of indoor hot air.

[0080] When R < T - 0.5℃, meaning the indoor temperature is too low, the hydraulic actuator is instructed to move the inner flange in the opposite direction of the "increase height" to reduce heat loss during the air supply process and increase the air supply temperature in the local area.

[0081] During the entire adjustment process, the displacement sensor and temperature sensor will form a "closed-loop feedback" until the R value returns to the range of T±0.5℃. Then, the control box will trigger the hydraulic lock again, and the oil-push piston rod will stop moving, completing one dynamic adjustment cycle.

[0082] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 ventilation structure, characterized in that, include: Ventilation frame; The outer flange, which is fixedly connected to the inner side of the ventilation frame, is a U-shaped frame with one end open; The inner flange is used to fix the wind baffle. The inner flange is located at one end of the opening of the outer flange, and its two sides can move along the two opposite side walls of the outer flange to change the size of the ventilation opening of the ventilation frame blocked by the wind baffle. A power unit is connected to the side of the inner flange away from the opening, driving the inner flange to move.

2. The ventilation structure as described in claim 1, characterized in that, The outer flange has fixed slide rails on its two opposite side walls, and the inner flange has movable slide rails on both sides that are slidably connected to the fixed slide rails.

3. The ventilation structure as described in claim 2, characterized in that, The fixed slide rail includes a first L-shaped guide rail seat and rotating wheels fixed at intervals on the first L-shaped guide rail seat; the movable slide rail includes a second L-shaped guide rail seat, the second L-shaped guide rail seat and the first L-shaped guide rail seat are centrally symmetrically arranged, and the periphery of the rotating wheel contacts two opposite sides of the first and second L-shaped guide rail seats.

4. The ventilation structure as described in claim 3, characterized in that, The rotating wheel is a roller.

5. The ventilation structure as described in claim 4, characterized in that, The roller is a metal roller, and the first L-shaped guide rail seat and the second L-shaped guide rail seat have a flexible layer on the side surface that contacts the circumference of the roller.

6. The ventilation structure as described in claim 5, characterized in that, The flexible layer has artificial fluff.

7. The ventilation structure as described in claim 6, characterized in that, The surface of the artificial fleece is coated with lubricating grease.

8. The ventilation structure according to any one of claims 1 to 7, characterized in that, The power component is a hydraulic actuator, and the output end of the hydraulic actuator is connected to the base plate on the side of the inner flange away from the opening of the outer flange.

9. An air conditioning system, characterized in that, The air supply and / or air outlet of the air conditioning system adopts the ventilation structure described in any one of claims 1 to 8.

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