An air duct heating device for an air conditioning apparatus and an air conditioning apparatus

Abstract

The application provides an air duct heating device for an air conditioning device and the air conditioning device. The air duct heating device comprises an air outlet cavity, a movable heating assembly and a driving assembly. The air outlet cavity has an air outlet channel and a receiving groove in communication. The movable heating assembly comprises a movable baffle rotating in the air outlet cavity and a heating element. In the storage position, the heating element rotates into the receiving groove, and the movable baffle covers the opening of the receiving groove. In the heating position, the movable baffle and the heating element both rotate into the air outlet channel to heat the gas in the air outlet channel through the heating element. The driving assembly is used to drive the movable baffle or the heating element to rotate. The above structure realizes that the heating element can be stored in the receiving groove when heating is not needed, and the airflow in the air outlet channel is not affected, the air outlet efficiency is improved, the noise is reduced, and the air resistance and airflow disturbance of the airflow in the air outlet channel are not increased due to the heating element.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, and in particular to a duct heating device for air conditioning equipment and an air conditioning equipment. Background Technology

[0002] Currently, the heating structures in household and automotive air conditioners, whether PTC ceramic blocks or thick-film heating elements, are all installed within the air duct. In heating mode, this is perfectly acceptable: gas passing through the high-temperature heating element instantly raises its temperature, achieving rapid heating. However, once the system switches to non-heating modes, such as cooling, ventilation, or standby, the heating element, positioned horizontally within the airflow, transforms from a heat source into a resistance source. This increases airflow resistance and turbulence within the duct, leading to increased airflow resistance and noise. Utility Model Content

[0003] To address the aforementioned technical problems in the prior art, this application provides a duct heating device and an air conditioning device for air conditioning equipment, which enables the heating element to be housed in a receiving groove when heating is not required, without affecting the airflow in the air outlet duct, thereby improving air outlet efficiency.

[0004] This application provides an embodiment of a duct heating device for air conditioning equipment, comprising: An air outlet cavity has a connected air outlet channel and a receiving groove, the receiving groove being formed by a partial inward concavity of the cavity wall of the air outlet cavity; A movable heating assembly includes a movable baffle rotatably disposed within the air outlet cavity and a heating element. The movable heating assembly has at least a storage position and a heating position. In the storage position, the heating element rotates into the receiving groove, and the movable baffle covers the opening of the receiving groove. In the heating position, both the movable baffle and the heating element rotate into the air outlet channel to heat the gas in the air outlet channel via the heating element. A driving component is provided to drive the movable baffle or heating element to rotate, thereby driving the heating element to rotate the movable baffle between the storage position and the heating position, or driving the movable baffle to rotate so that the heating element moves between the storage position and the heating position. This structure allows the heating element to be stored in the receiving groove when heating is not required, without affecting the airflow in the air outlet channel, thus improving air outlet efficiency.

[0005] In some embodiments, the movable heating component has at least a transit position between the storage position and the heating position, and the movable baffle is disposed in the heating position relative to its position in the transit position close to the cavity wall of the air outlet cavity, so that the movable baffle will avoid affecting the airflow and move to a position close to the cavity wall of the air outlet cavity, thereby improving the gas flow efficiency in the air outlet channel.

[0006] In some embodiments, the movable baffle, when in the retracted position, cooperates with the inner wall of the air outlet channel to enclose a continuous and smooth channel, thereby ensuring that the movable heating component does not affect the airflow within the air outlet channel when in the retracted position.

[0007] In some embodiments, when the drive assembly is connected to drive the heating element to rotate, the movable heating assembly further includes an elastic member. One end of the elastic member is connected to the cavity wall of the air outlet chamber, and the other end is connected to the movable baffle. The elastic member is used to apply a force to the movable baffle, bringing it closer to the heating element, when the movable baffle is in the retracted position, and to apply a force to the movable baffle, moving it away from the heating element, when the movable baffle is in the intermediate position, so as to push the movable baffle to the heating position. Thus, the elastic member allows the movable baffle to tightly seal the opening of the receiving groove in the retracted position, and allows the movable baffle to move away from the heating element in the intermediate position, thereby avoiding obstruction of gas flow.

[0008] In some embodiments, the movable heating assembly further includes a baffle stop, which is connected to the heating element and serves to limit the rotation angle of the movable baffle relative to the heating element. Thus, the rotation angle of the movable baffle relative to the heating element can be effectively limited by the baffle stop, ensuring the rationality of the movable baffle's movement.

[0009] In some embodiments, one end of the movable baffle is rotatably connected to the cavity wall of the air outlet chamber, and the middle part of the movable baffle is connected to the other end of the elastic member. The above structural design is reasonable and can ensure the stable movement of the movable baffle.

[0010] In some embodiments, when the driving component is connected to drive the movable baffle to rotate, the movable baffle is movably connected to the heating element through a linkage plate. When the driving component drives the movable baffle to rotate by a first angle to reach the heating position, the movable baffle drives the heating element to rotate by a second angle through the linkage plate to reach the heating position. Wherein, the first angle is greater than the second angle, so that a stable movable connection between the movable baffle and the heating element can be achieved through the linkage plate.

[0011] In some embodiments, the linkage plate includes a groove, one end of which is rotatably or fixedly connected to the movable baffle. The heating element has a first protrusion externally, which slidably rests within the groove. The linkage plate has a simple structure and ensures stable connection between the movable baffle and the heating element.

[0012] In some embodiments, when one end of the linkage plate is rotatably connected to the movable baffle, the slide groove is linear; or, when one end of the linkage plate is fixedly connected to the movable baffle, the slide groove is arc-shaped. Thus, by adapting the connection method and the slide groove shape, the stability of the movable connection between the movable baffle and the heating element via the linkage plate can be improved.

[0013] This application also provides an air conditioning device, including the air duct heating device for air conditioning devices described in any of the above embodiments. The above structure allows the heating element to be housed within a receiving groove when heating is not required, without affecting the airflow in the outlet duct, thus improving airflow efficiency.

[0014] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: This application achieves the placement of the active heating element in the storage position in the non-heating mode by using the accommodating groove formed by the partial indentation of the cavity wall of the air outlet cavity. In the storage position, the heating element rotates into the accommodating groove, and the movable baffle covers the opening of the accommodating groove. This allows the heating element to be stored in the accommodating groove when heating is not required, without affecting the airflow in the air outlet channel, thus improving the air outlet efficiency, reducing noise, and preventing the heating element from increasing the airflow resistance and airflow disturbance in the air outlet channel. This solves the problem of increased airflow resistance and noise caused by the heating element in the non-heating mode. Attached Figure Description

[0015] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and are used, together with the description and claims, to illustrate the disclosed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0016] Figure 1 This is a schematic diagram of the structure of the air duct heating device according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the movable heating component and the driving component of the air duct heating device according to Embodiment 1 of this application; Figure 3This is a schematic diagram of the structure of the movable heating component and the driving component of the air duct heating device according to Embodiment 1 of this application. The movable baffle is not shown in the figure. Figure 4 This is an exploded view of the movable heating component and the driving component of the air duct heating device according to Embodiment 1 of this application; Figure 5 This is a cross-sectional view of the air duct heating device according to Embodiment 1 of this application, showing the movable heating component in the storage position; Figure 6 This is a cross-sectional view of the air duct heating device according to Embodiment 1 of this application. The active heating component shown in the figure is in the intermediate position. Figure 7 This is a cross-sectional view of the air duct heating device according to Embodiment 1 of this application, showing the active heating component in the heating position; Figure 8 This is a cross-sectional view of the air duct heating device according to Embodiment 1 of this application. The movable heating component shown in the figure is in the reset position. Figure 9 This is a cross-sectional view of the air duct heating device according to Embodiment 2 of this application. The movable heating component shown in the figure is in the storage position, and the slide is straight. Figure 10 This is a cross-sectional view of the air duct heating device according to Embodiment 2 of this application. The movable heating component shown in the figure is in the intermediate position. Figure 11 This is a cross-sectional view of the air duct heating device according to Embodiment 2 of this application. The movable heating component shown in the figure is in the heating position. Figure 12 This is a cross-sectional view of the air duct heating device according to Embodiment 2 of this application. The movable heating component shown in the figure is in the storage position, and the chute is arc-shaped.

[0017] The components indicated by the reference numerals in the figure: 1. Air outlet cavity; 11. Air outlet channel; 12. Accommodating groove; 2. Movable heating component; 21. Movable baffle; 22. Heating element; 23. Elastic element; 24. Baffle stop post; 25. Linkage plate; 26. First protruding post; 27. Second protruding post; 28. Rotating bracket; 29. ​​Baffle rotating shaft; 210. Baffle connecting structure; 3. Drive component; 4. Thermostat; 5. Fan. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] This application provides an embodiment of a duct heating device for air conditioning equipment. For example... Figures 1 to 12As shown, the air duct heating device includes an air outlet cavity 1, a movable heating component 2, and a driving component 3. The air outlet cavity 1 has a communicating air outlet channel 11 and a receiving groove 12, which is formed by a partial inward concavity of the cavity wall of the air outlet cavity 1. The movable heating component 2 includes a movable baffle 21 rotatably disposed within the air outlet cavity 1 and a heating element 22. The movable heating component 2 has at least a storage position and a heating position. In the storage position, the heating element 22 rotates into the receiving groove 12, and the movable baffle 21 covers the opening of the receiving groove 12. In the heating position, both the movable baffle 21 and the heating element 22 rotate into the air outlet channel 11 to heat the gas in the air outlet channel 11 via the heating element 22. The driving component 3 is used to drive the movable baffle 21 or the heating element 22 to rotate, thereby driving the heating element 22 to rotate the movable baffle 21 between the storage position and the heating position, or driving the movable baffle 21 to rotate so that the heating element 22 moves between the storage position and the heating position.

[0020] like Figures 2 to 12 As shown, Figures 2 to 8 This is a schematic diagram of Embodiment 1 (where the driving assembly 3 drives the heating element 22 to rotate). Figures 9 to 12 This is a schematic diagram of Embodiment 2 (driving component 3 drives movable baffle 21 to rotate). Figure 5 , Figure 9 and Figure 12 The active heating components 2 shown are all in their stored positions. Figure 6 and Figure 10 The active heating components 2 shown are all in the intermediate position (see below for details). Figure 7 and Figure 11 The active heating components 2 shown are all in the heating position. Figure 8 The movable heating element 2 shown is in the reset position. The reset position can be understood as the position of the heating element 22 after heating is completed, when it moves from the heating position to the storage position. At this time, the heating element 22 has been reset, but the movable baffle 21 has not been reset.

[0021] Understandably, the aforementioned duct heating device can have a non-heating mode and a heating mode. The duct heating device can only enter the heating mode when the movable heating component 2 is in the heating position. When the movable heating component 2 is in the storage position, transfer position, or reset position, the duct heating device is in the non-heating mode.

[0022] When the duct heating device switches from non-heating mode to heating mode under control, the drive component 3 can rotate the movable heating component 2 sequentially to the storage position, the transfer position, and the heating position, so as to enter the heating mode in the heating position. When the duct heating device switches from heating mode to non-heating mode under control, the drive component 3 can rotate the movable heating component 2 sequentially from the heating position to the reset position and the storage position, so as to complete the storage of the movable heating component 2 and avoid affecting the gas flow in the air outlet duct 11.

[0023] The aforementioned movable heating assembly 2 may further include a rotating bracket 28, through which the heating element 22 is connected to the output end of the drive assembly 3, i.e., the rotating bracket 28 and the heating element 22 rotate synchronously. The aforementioned rotating bracket 28 may include a left frame and a right frame, which are distributed on opposite sides of the heating element 22 to support the heating element 22.

[0024] The aforementioned drive assembly 3 may include a synchronous motor, and the rotating bracket 28 may have a flat slot. The output shaft of the synchronous motor is a flat shaft and is inserted into the flat slot of the rotating bracket 28 so as to drive the rotating bracket 28 and the heating element 22 connected to the rotating bracket 28 to rotate in the air outlet cavity 1 through the drive assembly 3.

[0025] The heating element 22 may be equipped with a thermostat 4 and a fuse. The thermostat 4 is used to limit the heating temperature, and the fuse is used to stop the heating element 22 from heating when the temperature of the heating element 22 is too high, so as to ensure the safety of the heating element 22.

[0026] The aforementioned movable baffle 21 can cover the entire heating element 22 in the storage position, and the shape of the movable baffle 21 can be adapted to the inner wall shape of the air outlet channel 11, so that the gas can be smoothly discharged outward in the air outlet channel 11.

[0027] The heating element 22 can be one or more of the following structures: PTC ceramic heater, heating wire, heating tube, and electric heating film heating element.

[0028] The rotating shaft of the movable baffle 21 and the rotating shaft of the heating element 22 can be coaxially arranged.

[0029] When the aforementioned drive assembly 3 drives the heating element 22 to rotate from the storage position to the heating position, the heating element 22 can push against the movable baffle 21, causing the movable baffle 21 to move away from the receiving groove 12.

[0030] When the aforementioned drive assembly 3 drives the movable baffle 21 to rotate, the movable baffle 21 can be movably connected to the heating element 22, so that the heating element 22 can be driven to rotate through the movable baffle 21.

[0031] This application utilizes a recessed groove 12 formed by the partial indentation of the cavity wall of the air outlet cavity 1 to achieve a retracted position of the active heating element 2 in the non-heating mode. In the retracted position, the heating element 22 rotates into the recessed groove 12, and the movable baffle 21 covers the opening of the recessed groove 12. This allows the heating element 22 to be retracted into the recessed groove 12 when heating is not required, without affecting the airflow in the air outlet channel 11. This improves airflow efficiency, reduces noise, and prevents the heating element 22 from increasing airflow resistance and airflow disturbance in the air outlet channel 11. This solves the problem of increased airflow resistance and noise caused by the heating element 22 in the non-heating mode.

[0032] In some embodiments, such as Figure 6 and Figure 10 As shown, the movable heating component 2 has at least a transition position between the storage position and the heating position, and the movable baffle 21 is disposed in the heating position relative to the cavity wall of the air outlet cavity 1 in the transition position.

[0033] Thus, when the movable baffle 21 moves from the intermediate position to the heating position, it moves towards the cavity wall of the air outlet cavity 1. At this time, the movable baffle 21 and the heating element 22 are separated. The heating element 22 is in the air outlet channel 11. In order to avoid affecting the airflow, the movable baffle 21 will move to a position close to the cavity wall of the air outlet cavity 1, which improves the gas flow efficiency in the air outlet channel 11.

[0034] In some embodiments, the position of the heating element 22 relative to the air outlet duct 11 in the intermediate position and the heating position may remain unchanged. For example... Figure 6 and Figure 7 As shown, after the heating element 22 moves to the intermediate position, the drive component 3 does not need to continue driving the heating element 22 to rotate, and the gas in the air outlet channel 11 can achieve the heating mode by passing through the heating element 22.

[0035] In some other embodiments, the position of the heating element 22 relative to the air outlet duct 11 may be different in the intermediate position and the heating position. For example... Figure 10 and Figure 11 As shown, after the drive assembly 3 drives the movable baffle 21 to rotate to the intermediate position, the heating element 22 will be in the intermediate position under the action of gravity. As the movable baffle 21 rotates from the intermediate position to the heating position, the heating element 22 will rotate to the heating position under the drive of the movable baffle 21.

[0036] In some embodiments, such as Figure 5 , Figure 9 and Figure 12 As shown, when the movable baffle 21 is in the storage position, it cooperates with the inner wall of the air outlet duct 11 to form a continuous and smooth channel.

[0037] In this way, it can be ensured that the movable heating component 2 will not affect the airflow in the air outlet channel 11 when it is in the storage position. That is, the movable heating component 2 will not block the exhaust of the air outlet channel 11, so that the airflow in the air outlet channel 11 can be smooth and unobstructed in the non-heating mode, which improves the air outlet efficiency, reduces the air outlet noise, and is not easy to accumulate dust, thus improving the user experience.

[0038] In some embodiments, such as Figures 2 to 8 As shown, when the drive assembly 3 is connected to the drive heating element 22 for rotation, the movable heating assembly 2 also includes an elastic element 23. One end of the elastic element 23 is connected to the cavity wall of the air outlet chamber 1, and the other end is connected to the movable baffle 21. The elastic element 23 is used to apply a force to the movable baffle 21 to bring it closer to the heating element 22 when the movable baffle 21 is in the retracted position, and also to apply a force to the movable baffle 21 to move it away from the heating element 22 when the movable baffle 21 is in the intermediate position, so as to push the movable baffle 21 to the heating position. The diagram is shown for clarity. Figures 5 to 8 The dashed line shown is the axis of the elastic element 23 to simplify the illustration of the elastic element 23.

[0039] Thus, the elastic element 23 allows the movable baffle 21 to tightly seal the opening of the receiving groove 12 in the retracted position, and also allows the movable baffle 21 to move away from the heating element 22 in the intermediate position, so as to avoid obstructing gas flow. Furthermore, the above structure eliminates the need for additional drive for the rotation of the movable baffle 21, simplifying the structural design.

[0040] like Figure 8 As shown, the elastic element 23 can also apply a force to the movable baffle 21 in the reset position, bringing it closer to the heating element 22, thereby driving the movable baffle 21 to reset.

[0041] The aforementioned movable baffle 21 can be rotatably mounted within the air outlet cavity 1 via the baffle pivot 29. For example... Figure 5 As shown, in non-heating mode, the tension line of the elastic element 23 is on the left side of the baffle pivot 29. The tension of the elastic element 23 pulls the movable baffle 21 towards the heating element 22, ensuring that the entire air outlet channel 11 is smooth and continuous, and the cross-section of the air outlet channel 11 remains consistent without sudden changes. Figure 6 and Figure 7As shown, when heating is required, the heating element 22 is driven to rotate, causing the movable baffle 21 to rotate to the intermediate position. At this time, the intermediate position of the heating element 22 is the heating position, and the drive assembly 3 will no longer drive the heating element 22 to rotate. In the intermediate position, the tension line of the elastic element 23 rotates to the right side of the baffle shaft 29. The force arm generated by the tension of the elastic element 23 on the fulcrum of the baffle shaft 29 changes to the right, pulling the movable baffle 21 away from the heating element 22. This allows the movable baffle 21 to move away from the heating element 22 in the intermediate position, thus avoiding obstructing the gas flow. That is, under the rightward pulling force of the elastic element 23, the movable baffle 21 will rotate a certain angle to the right relative to the heating element 22, separating the movable baffle 21 and the heating element 22. This allows the airflow in the exhaust duct 11 to pass through the heating element 22 without being blocked by the movable baffle 21. The airflow passing through the heating element 22 is heated by the heating element 22 and blown out as hot air. At this time, both the movable baffle 21 and the heating element 22 are in the heating position, and the heating mode can be entered.

[0042] In some embodiments, such as Figures 2 to 8 As shown, the movable heating assembly 2 also includes a baffle stop 24, which is connected to the heating element 22 and is used to limit the rotation angle of the movable baffle 21 relative to the heating element 22.

[0043] In this way, the rotation angle of the movable baffle 21 relative to the heating element 22 can be effectively limited by the baffle stop 24, ensuring the rationality of the movement of the movable baffle 21.

[0044] The aforementioned baffle stop 24 can be mounted on the rotating bracket 28 and rotate synchronously with the rotating bracket 28 and the heating element 22.

[0045] When the movable baffle 21 moves away from the heating element 22 to the heating position under the action of the elastic member 23, the movable baffle 21 will abut against the baffle stop post 24, thereby limiting the rotation angle of the movable baffle 21.

[0046] like Figure 8 As shown, when switching from heating mode to non-heating mode, the drive assembly 3 drives the heating element 22 to rotate to the left and retract to the storage position. At the same time, the baffle stop 24 acts on the movable baffle 21, causing the movable baffle 21 to rotate to the left synchronously. Figure 8After reaching the indicated position, the tension line of the elastic element 23 rotates back to the left side of the baffle shaft 29 as the movable baffle 21 rotates. The force arm of the elastic element 23 on the baffle shaft 29 changes to the left, pulling the movable baffle 21 closer to the heating element 22. As a result, the movable baffle 21 continues to rotate to the left to the open position of the cover receiving groove 12, thus returning to the non-heating mode. At this time, the movable baffle 21 retracts and forms an integral part with the inner wall of the air outlet channel 11.

[0047] In some embodiments, such as Figures 2 to 8 As shown, one end of the movable baffle 21 is rotatably connected to the cavity wall of the air outlet cavity 1, and the middle part of the movable baffle 21 is connected to the other end of the elastic member 23. The above structural design is reasonable and can ensure the stable movement of the movable baffle 21.

[0048] The aforementioned movable baffle 21 may have a baffle linking structure 210, which is located in the middle of the movable baffle 21. The other end of the elastic member 23 is connected to the movable baffle 21 through the baffle linking structure 210.

[0049] In some embodiments, such as Figures 9 to 12 As shown, when the drive assembly 3 is connected to drive the movable baffle 21 to rotate, the movable baffle 21 is movably connected to the heating element 22 through the linkage plate 25. When the drive assembly 3 drives the movable baffle 21 to rotate to the heating position by a first angle, the movable baffle 21 drives the heating element 22 to rotate to the heating position by a second angle through the linkage plate 25; wherein, the first angle is greater than the second angle.

[0050] Thus, the movable baffle 21 and the heating element 22 can be connected by the linkage plate 25. When the drive assembly 3 drives the movable baffle 21 to rotate to the intermediate position, the heating element 22 will move from the storage position to the intermediate position under the action of gravity. When the movable baffle 21 continues to rotate to the heating position under the drive, it will drive the heating element 22 to rotate. The rotation angle of the movable baffle 21 is greater than the rotation angle of the heating element 22, so that the movable baffle 21 and the heating element 22 are separated. The heating element 22 is in the air outlet channel 11. In order to avoid affecting the airflow, the movable baffle 21 will move to a position close to the cavity wall of the air outlet cavity 1, which improves the gas flow efficiency in the air outlet channel 11.

[0051] like Figure 9 and Figure 11 As shown, when the movable baffle 21 is driven to rotate toward the heating position, during the rotation process, the movable baffle 21 moves from the left side (in conjunction with...) Figure 9 and Figure 12 Rotate the position shown to the center vertical (combined with...) Figure 10During the process of rotating to the position shown, the heating element 22, under the influence of gravity, will rotate together with the movable baffle 21 to the central vertical position, i.e., the intermediate position. During the rotation to the heating mode, when the movable baffle 21 rotates to the right beyond the central vertical position and begins to rotate upwards to the right, the heating element 22 will tend to maintain its vertical position under the influence of gravity. When the movable baffle 21 rotates to the final heating state position, the movable baffle 21 drives the linkage plate 25 to rotate, thereby driving the heating element 22 to rotate.

[0052] When rotating back from heating mode to non-heating mode, the heating element 22 will rotate back into the receiving groove 12 under the push of the movable baffle 21. The movable baffle 21 covers the heating element 22 and forms a smooth whole with the inner wall of the air outlet duct 11.

[0053] In some embodiments, such as Figures 9 to 12 As shown, the linkage plate 25 includes a sliding groove. One end of the linkage plate 25 is rotatably or fixedly connected to the movable baffle 21. The heating element 22 is provided with a first protrusion 26, which is slidably disposed in the sliding groove. The linkage plate 25 has a simple structure and can ensure the stability of the movable connection between the movable baffle 21 and the heating element 22.

[0054] like Figure 10 and Figure 11 As shown, the movable baffle 21 drives the linkage plate 25 to rotate. The first protrusion 26 slides in the groove of the linkage plate 25 to the leftmost end of the groove and then continues to be driven by the linkage plate 25 to rotate to the upper right by an angle. At this time, the movable baffle 21 and the heating element 22 are separated from each other by the groove, so that the airflow in the exhaust duct 11 can pass through the PTC without being blocked by the movable baffle 21. The airflow passing through the PTC is heated by the PTC and forms hot air that is blown out.

[0055] The aforementioned movable baffle 21 may be provided with a second protrusion 27, and one end of the linkage plate 25 is connected to the movable baffle 21 through the second protrusion 27.

[0056] In some embodiments, such as Figures 9 to 12 As shown, when one end of the linkage plate 25 is rotatably connected to the movable baffle 21, the shape of the slide is straight; or, when one end of the linkage plate 25 is fixedly connected to the movable baffle 21, the shape of the slide is arc-shaped.

[0057] In this way, the stability of the movable baffle 21 and heating element 22 can be improved by adapting the connection method and the shape of the slide.

[0058] This application also provides an air conditioning device. The air conditioning device includes the air duct heating device for air conditioning devices according to any of the above embodiments.

[0059] The air conditioning equipment using the above-mentioned duct heating device achieves the retracted position of the movable heating element 2 in the non-heating mode by using the accommodating groove 12 formed by the partial indentation of the cavity wall of the air outlet cavity 1. In the retracted position, the heating element 22 rotates into the accommodating groove 12, and the movable baffle 21 covers the opening of the accommodating groove 12. This allows the heating element 22 to be retracted into the accommodating groove 12 when heating is not required, without affecting the airflow in the air outlet duct 11. This improves the air outlet efficiency, reduces noise, and prevents the heating element 22 from increasing the air resistance and airflow disturbance in the air outlet duct 11. This solves the problem of increased airflow resistance and noise caused by the heating element 22 in the non-heating mode.

[0060] The aforementioned air conditioning equipment can specifically refer to household air conditioners, vehicle air conditioners, etc., such as portable air conditioners within the category of household air conditioners.

[0061] The aforementioned air conditioning equipment may include a fan 5, the air outlet of which is connected to the air inlet of the air outlet chamber 1.

[0062] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of this utility model.

Claims

1. A duct heating device for air conditioning equipment, characterized in that, include: An air outlet cavity (1) has a communicating air outlet channel (11) and a receiving groove (12), the receiving groove (12) being formed by a partial inward concavity of the cavity wall of the air outlet cavity (1); The movable heating assembly (2) includes a movable baffle (21) rotatably disposed in the air outlet cavity (1) and a heating element (22). The movable heating assembly (2) has at least a storage position and a heating position. In the storage position, the heating element (22) rotates into the receiving groove (12), and the movable baffle (21) covers the opening of the receiving groove (12). In the heating position, both the movable baffle (21) and the heating element (22) rotate into the air outlet channel (11) to heat the gas in the air outlet channel (11) via the heating element (22). The drive assembly (3) is used to drive the movable baffle (21) or the heating element (22) to rotate, so as to drive the heating element (22) to drive the movable baffle (21) to rotate between the storage position and the heating position, or to drive the movable baffle (21) to rotate so that the heating element (22) moves between the storage position and the heating position.

2. The air duct heating device for air conditioning equipment according to claim 1, characterized in that, The movable heating component (2) has at least a transit position between the storage position and the heating position, and the movable baffle (21) is disposed in the heating position relative to the cavity wall of the air outlet cavity (1) in the transit position.

3. The air duct heating device for air conditioning equipment according to claim 1, characterized in that, The movable baffle (21) in the storage position cooperates with the inner wall of the air outlet channel (11) to form a continuous and smooth channel.

4. The air duct heating device for air conditioning equipment according to claim 2, characterized in that, When the drive assembly (3) is connected to drive the heating element (22) to rotate, the movable heating assembly (2) also includes an elastic element (23). One end of the elastic element (23) is connected to the cavity wall of the air outlet cavity (1), and the other end is connected to the movable baffle (21). The elastic element (23) is used to apply a force to the movable baffle (21) to bring it closer to the heating element (22) when the movable baffle (21) is in the storage position, and is also used to apply a force to the movable baffle (21) to move it away from the heating element (22) when the movable baffle (21) is in the intermediate position, so as to push the movable baffle (21) to the heating position.

5. The air duct heating device for air conditioning equipment according to claim 4, characterized in that, The movable heating assembly (2) also includes a baffle stop (24), which is connected to the heating element (22) and is used to limit the rotation angle of the movable baffle (21) relative to the heating element (22).

6. The air duct heating device for air conditioning equipment according to claim 4, characterized in that, One end of the movable baffle (21) is rotatably connected to the cavity wall of the air outlet cavity (1), and the middle part of the movable baffle (21) is connected to the other end of the elastic member (23).

7. The air duct heating device for air conditioning equipment according to claim 2, characterized in that, When the drive assembly (3) is connected to drive the movable baffle (21) to rotate, the movable baffle (21) is movably connected to the heating element (22) through the linkage plate (25). When the drive assembly (3) drives the movable baffle (21) to rotate a first angle to reach the heating position, the movable baffle (21) drives the heating element (22) to rotate a second angle through the linkage plate (25) to reach the heating position; wherein, the first angle is greater than the second angle.

8. The air duct heating device for air conditioning equipment according to claim 7, characterized in that, The linkage plate (25) includes a sliding groove. One end of the linkage plate (25) is rotatably or fixedly connected to the movable baffle (21). The heating element (22) is provided with a first protrusion (26) on its outside. The first protrusion (26) is slidably disposed in the sliding groove.

9. The air duct heating device for air conditioning equipment according to claim 8, characterized in that, When one end of the linkage plate (25) is rotatably connected to the movable baffle (21), the shape of the slide groove is straight; or, When one end of the linkage plate (25) is fixedly connected to the movable baffle (21), the shape of the chute is arc-shaped.

10. An air conditioning device, characterized in that, Includes a duct heating device for air conditioning equipment as described in any one of claims 1 to 9.

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