Air door structure capable of automatically detecting fan state
By designing a damper structure that automatically detects the fan status, the damper blocks the air outlet when the fan is running, and combined with elastic elements and triggering components, the problem of the fan's operating status being difficult to detect is solved, thus achieving convenient fan status detection and effective warning.
Patent Information
- Application Number
- CN202520476925.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The operating status of the fan in existing drying equipment is difficult to detect, which makes the heater prone to overheating due to no-load overheating and causing circuit overheating failure. There is a lack of effective detection methods.
Design a damper structure for automatically detecting the status of a fan. The damper blocks the air outlet when the fan is running and moves away from the air outlet when the fan is not running. Combined with elastic elements and triggering elements, the damper can automatically detect the status of the fan and issue an alarm through an alarm element.
It enables automatic detection of the wind turbine's operating status, improving detection convenience, reducing detection costs, and enhancing the warning effect through alarm elements.
Smart Images
Figure CN223866976U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fan state detection equipment technical field, concretely relates to a kind of automatic detection fan state's air door structure. BACKGROUND
[0002] Fan and heater (for example, heating pipe) are installed on drying equipment (for example, clothes dryer). The heater is used to heat air. The fan is used to blow hot air to clothes and exhaust moisture from the drying equipment, so that the hot air in the drying equipment circulates, so that the inside of the drying equipment is in a negative pressure state.
[0003] When the fan fails to operate normally, the fan cannot provide airflow through the heater, so that the heater is in an idle state, which can easily cause the heater to overheat, causing circuit overheating failure.
[0004] Because the operating state of the fan is difficult to detect, the above-mentioned heater idle overheating, circuit overheating failure risk is prone to occur. Therefore, how to detect the operating state of the fan is a technical problem to be solved at present. INVENTION CONTENTS
[0005] The utility model discloses a kind of air door structures for automatically detecting fan state, the utility model can detect the operating state of fan.
[0006] To achieve the above object, the technical scheme adopted by the utility model is:
[0007] An air door structure for automatically detecting fan state, comprising an air door, the air door is arranged on the outside of the cabinet of the drying equipment, the upper end of the air door is connected with the cabinet of the drying equipment, the cabinet of the drying equipment is provided with an air port, and the lower part of the air door is bent away from the air port;
[0008] When the fan of the drying equipment operates, the inside of the cabinet of the drying equipment is in a negative pressure state, and the lower part of the air door blocks the air port.
[0009] When the fan of the drying equipment does not operate, the lower part of the air door keeps away from the air port.
[0010] Further, the upper end of the air door is rotatably connected with the cabinet of the drying equipment, the cabinet of the drying equipment is provided with an elastic member, and the elastic member is used to push the lower part of the air door away from the air port.
[0011] Further, the upper end of the air door is provided with a rotating shaft, the cabinet of the drying equipment is provided with a shaft seat, the rotating shaft is rotatably connected with the shaft seat, the elastic member adopts a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring abuts against the side of the air door facing the air port, and the other end of the torsion spring abuts against the shaft seat.
[0012] Further, the upper end of the air door is provided with an extension plate, the included angle between the extension plate and the air door is less than 180 degrees, the shell of the drying equipment is provided with a trigger element, the trigger element is arranged corresponding to the extension plate, and the trigger element is electrically connected with the alarm element through an alarm circuit;
[0013] When the fan of the drying equipment is running, the lower part of the air door is in a state of shielding the air port, the extension plate is in a state of leaving the trigger element, and the alarm element is in an unstarted state;
[0014] When the fan of the drying equipment is not running, the lower part of the air door is in a state of being away from the air port, the extension plate is in a state of pressing the trigger element, and the alarm element is in a started state.
[0015] Further, the trigger element adopts a micro switch.
[0016] The drying equipment has the beneficial effects that:
[0017] 1. When the fan is running normally, the inside of the drying equipment is in a negative pressure state, so that the air door is adsorbed on the outer side wall of the shell of the drying equipment under the action of negative pressure; when the fan is not running, the lower part of the air door keeps away from the air port. Therefore, the air door realizes automatic detection of the running state of the fan, and the running state of the fan can be directly observed by the staff by observing the state of the air door, thereby improving the convenience of detection of the running state of the fan.
[0018] 2. The air door structure for detecting the running state of the fan is simple in structure, convenient to install, and conducive to reducing detection cost.
[0019] 3. By arranging the extension plate on the upper end of the air door, the extension plate and the air door can form a lever structure with the rotating shaft as the rotation center. When the fan is running normally, the inside of the drying equipment is in a negative pressure state, so that the lower part of the air door is adsorbed on the outer side wall of the shell of the drying equipment under the action of negative pressure, and the extension plate at the upper end of the air door is away from the trigger element, and the alarm element is not started. When the fan is not running, the lower part of the air door keeps away from the air port, and the extension plate at the upper end of the air door presses the trigger element, so that the alarm element sends an alarm, and the alarm effect can be improved by sending the alarm through the alarm element. DRAWINGS
[0020] Figure 1 is a state diagram of the air door structure for automatically detecting the state of the fan of example 1 Figure 1 ;
[0021] Figure 2 is a state diagram of the air door structure for automatically detecting the state of the fan of example 1 Figure 2 ;
[0022] Figure 3 is a perspective view of the air door structure for automatically detecting the state of the fan of example 2;
[0023] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;
[0024] Figure 5 This is a schematic diagram of the damper structure for automatically detecting the status of a fan, as shown in Embodiment 2. Figure 1 ;
[0025] Figure 6 This is a schematic diagram of the damper structure for automatically detecting the status of a fan, as shown in Embodiment 2. Figure 2 ;
[0026] Figure 7 This is a perspective view of a damper structure for automatically detecting the status of a fan, as described in Embodiment 3.
[0027] Figure 8 This is the alarm circuit diagram for Example 3;
[0028] Figure 9 This is a schematic diagram of the damper structure for automatically detecting the status of a fan, as described in Embodiment 3. Figure 1 ;
[0029] Figure 10 This is a schematic diagram of the damper structure for automatically detecting the status of a fan, as described in Embodiment 3. Figure 2 .
[0030] Explanation of reference numerals in the attached figures:
[0031] 1-Air damper, 11-Shaft, 12-Extension plate
[0032] 2-Casing, 21-Air vent, 22-Shaft mount
[0033] 3-Torsion spring,
[0034] 4- Normally open micro switch,
[0035] 5. Audible and visual alarm,
[0036] 6-Power supply. Detailed Implementation
[0037] To better understand this utility model, it will be further described below with reference to the accompanying drawings. It is worth noting that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, 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 this utility model.
[0038] Example 1:
[0039] See Figure 1 and Figure 2 An automatic damper structure for detecting fan status includes a damper 1. The damper 1 is made of a flexible plate, for example, a stainless steel sheet. The upper end of the damper 1 is welded and fixed to the outside of the casing 2 of the drying equipment, or the upper end of the damper 1 is fixed to the outside of the casing 2 of the drying equipment by screws. The casing 2 of the drying equipment is provided with an air outlet 21, which is correspondingly located at the lower part of the damper 1. The lower part of the damper 1 is bent away from the air outlet 21.
[0040] The working principle of this embodiment 1 is as follows:
[0041] (1) Scenario 1: See Figure 2 When the fan of the drying equipment is running normally, the fan blows hot air onto the clothes and exhausts moisture from the drying equipment, causing the hot air inside the drying equipment to circulate and creating a negative pressure state inside the drying equipment. At this time, the lower part of the damper 1, under the action of negative pressure, overcomes its own elastic force and moves closer to the air outlet 21, causing the lower part of the damper 1 to adhere to the outer wall of the casing 2 of the drying equipment, thus blocking the air outlet 21.
[0042] (2) Scenario 2: See Figure 1 When the fan of the drying equipment is not running, the internal air pressure of the drying equipment is at normal pressure, and the lower part of the damper 1 is kept away from the air outlet 21.
[0043] Based on the working principle described above in Embodiment 1, it can be seen that Embodiment 1 has the following effects:
[0044] First, when the fan is running normally, the interior of the drying equipment is under negative pressure, causing the damper 1 to adhere to the outer wall of the casing 2 of the drying equipment under the negative pressure. When the fan is not running, the lower part of the damper 1 remains away from the air outlet 21. Thus, the damper 1 achieves automatic detection of the fan's operating status, and the staff can directly observe the status of the damper 1 to understand the fan's operating status, improving the convenience of fan operating status detection.
[0045] Secondly, the damper 1 used to detect the operating status of the fan in this embodiment 1 has a simple structure, is easy to install, and helps to reduce detection costs.
[0046] Example 2:
[0047] See Figures 3 to 6An automatic damper structure for detecting fan status includes a damper 1 and an elastic element. A rotating shaft 11 is fixedly mounted on the upper end of the damper 1, and a bearing seat 22 is fixedly mounted on the outer side of the drying equipment casing 2. The rotating shaft 11 rotatably engages with the shaft hole on the bearing seat 22. An air outlet 21 is provided on the drying equipment casing 2, correspondingly located at the lower part of the damper 1. The elastic element is a torsion spring 3, which is sleeved on the rotating shaft 11. One end of the torsion spring 3 abuts against the side of the damper 1 facing the air outlet 21, and the other end abuts against the bearing seat 22. The torsion spring 3 is used to push the lower part of the damper 1 away from the air outlet 21.
[0048] The working principle of this embodiment 2 is as follows:
[0049] (1) Scenario 1: See Figure 6 When the fan of the drying equipment is running normally, the fan blows hot air onto the clothes and exhausts moisture from the drying equipment, causing the hot air inside the drying equipment to circulate and creating a negative pressure state inside the drying equipment. At this time, the lower part of the damper 1, under the action of negative pressure, overcomes the elastic force of the torsion spring 3 and rotates closer to the location of the air outlet 21, causing the lower part of the damper 1 to adhere to the outer wall of the casing 2 of the drying equipment, thus blocking the air outlet 21.
[0050] (2) Scenario 2: See Figure 5 When the fan of the drying equipment is not running, the internal air pressure of the drying equipment is at normal pressure. At this time, the lower part of the damper 1 is kept away from the air outlet 21 under the elastic force of the torsion spring 3.
[0051] Based on the working principle described above in Embodiment 2, it can be seen that Embodiment 2 has the following effects:
[0052] First, when the fan is running normally, the interior of the drying equipment is under negative pressure, causing the damper 1 to adhere to the outer wall of the casing 2 of the drying equipment under the negative pressure. When the fan is not running, the lower part of the damper 1 remains away from the air outlet 21. Thus, the damper 1 achieves automatic detection of the fan's operating status, and the staff can directly observe the status of the damper 1 to understand the fan's operating status, improving the convenience of fan operating status detection.
[0053] Secondly, the damper 1 used to detect the operating status of the fan in this embodiment 2 has a simple structure, is easy to install, and helps to reduce detection costs.
[0054] Example 3:
[0055] This embodiment 3 is a further improvement on embodiment 2:
[0056] See Figures 7 to 10An extension plate 12 is provided at the upper end of the damper 1. The angle between the extension plate 12 and the damper 1 is less than 180°, and the extension plate 12 and the damper 1 are an integral structure. A trigger element is fixedly installed on the casing 2 of the drying equipment. The trigger element is set corresponding to the extension plate 12. In this embodiment 3, the trigger element can be a micro switch. Specifically, the micro switch is a normally open micro switch 4. When the normally open micro switch 4 is pressed, the normally open micro switch 4 is closed. When the normally open micro switch 4 is not pressed, the normally open micro switch 4 is in the open state. The trigger element is electrically connected to the alarm element through an alarm circuit. The alarm element can be an audible and visual alarm 5. The alarm circuit includes wires and a power supply. The wires connect the normally open micro switch 4, the power supply 6, and the audible and visual alarm 5 in series to form a closed circuit.
[0057] The working principle of this embodiment 3 is as follows:
[0058] (1) Scenario 1: See Figure 10 When the fan of the drying equipment is running normally, the fan blows hot air onto the clothes and exhausts moisture from the drying equipment, causing the hot air inside the drying equipment to circulate and creating a negative pressure state inside the drying equipment. At this time, the damper 1, under the action of negative pressure, can overcome the elastic force of the torsion spring 3, causing the damper 1 to rotate counterclockwise around the pivot 11. The lower part of the damper 1 is attached to the outer wall of the casing 2 of the drying equipment, blocking the air outlet 21. The extension plate 12 at the upper end of the damper 1 is in a state away from the normally open micro switch 4. The normally open micro switch 4 is not touched by the extension plate 12, so it is not triggered, and the audible and visual alarm 5 is in a non-activated state.
[0059] (2) Scenario 2: See Figure 9 When the fan of the drying equipment is not running, the internal air pressure of the drying equipment is at normal pressure. At this time, the damper 1 rotates clockwise around the shaft 11 as the rotation center under the action of the torsion spring 3. The lower part of the damper 1 remains away from the air outlet 21. The extension plate 12 at the upper end of the damper 1 presses the normally open micro switch 4, which triggers the normally open micro switch 4. After the alarm circuit is turned on, the sound and light alarm 5 is activated and the sound and light alarm 5 sounds an alarm.
[0060] Based on the working principle described above in Embodiment 3, it can be seen that Embodiment 3 has the following effects:
[0061] By providing an extension plate 12 at the upper end of the damper 1, the extension plate 12 and the damper 1 form a lever structure with the rotating shaft 11 as the center of rotation. When the fan is running normally, the interior of the drying equipment is under negative pressure, causing the lower part of the damper 1 to be adsorbed onto the outer wall of the casing 2 of the drying equipment under negative pressure. The extension plate 12 at the upper end of the damper 1 is away from the trigger element, and the alarm element is not activated. When the fan is not running, the lower part of the damper 1 remains away from the air outlet 21, and the extension plate 12 at the upper end of the damper 1 presses against the trigger element, causing the alarm element to sound an alarm. Thus, this embodiment 3 also achieves automatic detection of the fan's operating status, and the alarm effect is improved by sounding an alarm through the alarm element.
[0062] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A damper structure for automatically detecting the status of a fan, characterized in that, Includes an air damper, which is located on the outside of the casing of the drying equipment. The upper end of the air damper is connected to the casing of the drying equipment. The casing of the drying equipment is provided with an air outlet, and the lower part of the air damper bends away from the air outlet. When the fan of the drying equipment is running, the inside of the drying equipment casing is under negative pressure, and the lower part of the damper blocks the air outlet. When the fan of the drying equipment is not running, the lower part of the damper should be kept away from the air outlet.
2. The damper structure for automatically detecting fan status according to claim 1, characterized in that, The upper end of the damper is rotatably connected to the housing of the drying equipment. The housing of the drying equipment is provided with an elastic element, which is used to push the lower part of the damper away from the air outlet.
3. The damper structure for automatically detecting fan status according to claim 2, characterized in that, The upper end of the damper is provided with a rotating shaft, and the casing of the drying equipment is provided with a bearing seat. The rotating shaft is rotatably connected to the bearing seat. The elastic element is a torsion spring, which is sleeved on the rotating shaft. One end of the torsion spring abuts against the side of the damper facing the air outlet, and the other end of the torsion spring abuts against the bearing seat.
4. A damper structure for automatically detecting the status of a fan according to claim 2 or 3, characterized in that, The upper end of the damper is provided with an extension plate, and the included angle between the extension plate and the damper is less than 180°. The casing of the drying equipment is provided with a trigger element, which is set corresponding to the extension plate. The trigger element is electrically connected to the alarm element through an alarm circuit. When the fan of the drying equipment is running, the lower part of the damper is in a state of blocking the air outlet, the extension plate is in a state of being away from the trigger element, and the alarm element is in a state of not being activated. When the fan of the drying equipment is not running, the lower part of the damper is in a state away from the air outlet, the extension plate is in a state of pressing the trigger element, and the alarm element is in a state of activation.
5. The damper structure for automatically detecting fan status according to claim 4, characterized in that, The triggering element is a micro switch.