Panel driving mechanism and bath heater

Abstract

The utility model relates to the technical field of household appliances, and discloses a panel driving mechanism and a bath heater, and the panel driving mechanism comprises a driving part, a rotating shaft, a first connecting rod, a second connecting rod and a panel; the driving part is in transmission connection with the rotating shaft and used for driving the rotating shaft to rotate; the first end of the first connecting rod is fixedly connected with the rotating shaft, and the second end of the first connecting rod is rotatably connected with the bottom surface of the panel; the first end of the second connecting rod is used for being connected with an air opening of the bath heater in a rotatable mode, and the second end of the second connecting rod is connected with the bottom face of the panel in a rotatable mode. The rotation center of the second end of the first connecting rod and the rotation center of the second end of the second connecting rod are parallel and not coaxial. And the panel can cover the air opening to keep the overall attractiveness of the bath heater, the chance that dust and dirt enter the bath heater is reduced, and the cleaning frequency and the maintenance cost are greatly reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of household appliances, for example to a panel driving mechanism and a bathroom heater. BACKGROUND

[0002] The bathroom heater is a common heating device, which is widely used in bathrooms and other environments. The bathroom heater is provided with air inlets, such as air inlets and air outlets. Air is sucked into the interior of the bathroom heater through the air inlets. In the heating mode, the cold air outside is changed into warm air after passing through the heating element. The heated warm air is evenly emitted into the bathroom through the air outlets to increase the indoor temperature. In the related art, the air inlets of the bathroom heater are usually exposed, which not only affects the appearance, but also easily accumulates dust, increasing the cleaning difficulty.

[0003] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. UTILITY MODEL CONTENT

[0004] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0005] The panel driving mechanism and the bathroom heater provided by the embodiments of the present disclosure can cover the air inlets to maintain the overall appearance of the bathroom heater, reduce the opportunity of dust and dirt entering the interior of the bathroom heater, and greatly reduce the cleaning frequency and maintenance cost.

[0006] According to a first aspect of the present disclosure, a panel driving mechanism is provided, which is arranged at an air inlet of a bathroom heater body. The panel driving mechanism comprises a driving part, a rotating shaft, a first connecting rod, a second connecting rod and a panel. The driving part can be fixed to the bathroom heater body. The rotating shaft can be rotatably arranged in the bathroom heater body.

[0007] The driving part is in transmission connection with the rotating shaft, and is used to drive the rotating shaft to rotate.

[0008] The first end of the first connecting rod is fixedly connected with the rotating shaft, and the second end of the first connecting rod is rotatably connected with the bottom surface of the panel.

[0009] The first end of the second connecting rod is rotatably connected with the bathroom heater body, and the second end of the second connecting rod is rotatably connected with the bottom surface of the panel.

[0010] The rotation center of the second end of the first connecting rod and the rotation center of the second end of the second connecting rod are parallel to each other and not coaxial.

[0011] In some embodiments, the first link is a plurality of first links, and the plurality of first links are spaced along the rotation shaft.

[0012] In some embodiments, the plurality of first links are connected to each other by a linkage.

[0013] In some embodiments, the first link comprises a first link member and a second link member, one end of the first link member is connected to one end of the second link member;

[0014] The end of the first link member away from the second link member is the first end of the first link,

[0015] The end of the second link member away from the first link member is spaced from the first link member in a direction perpendicular to the first link member, and is the second end of the first link.

[0016] In some embodiments, the driving part comprises a motor, and an output shaft of the motor is in driving connection with the rotation shaft.

[0017] According to a first aspect of the present disclosure, a bath heater is provided, comprising a bath heater body, a panel driving mechanism provided by the first aspect of the present disclosure;

[0018] The bath heater body is provided with an air outlet, and the panel driving mechanism is arranged at the air outlet.

[0019] The driving part is fixed to the bath heater body, the rotation shaft is rotatably arranged in the bath heater body, and the first end of the second link is rotatably connected to the bath heater body.

[0020] In some embodiments, the bath heater body comprises a frame body conforming to the air outlet, and the frame body is arranged inside the air outlet; the rotation shaft is rotatably connected to the frame body, and the first end of the second link is rotatably connected to the frame body.

[0021] In some embodiments, the frame body comprises a first side plate and a second side plate, and the first side plate and the second side plate are oppositely arranged along the length direction of the air outlet; the two ends of the rotation shaft are rotatably connected to the first side plate and the second side plate respectively, and the first end of the second link is rotatably connected to the first side plate.

[0022] In some embodiments, the bath heater body comprises a main machine and a cover, the cover is provided with the air outlet, and the bottom surface of the cover covers the main machine; when the panel covers the air outlet, the top surface of the panel is flush with the top surface of the cover.

[0023] In some embodiments, the driving part is fixed to the bottom surface of the cover.

[0024] The panel driving mechanism and bathroom heater provided in this disclosure can achieve the following technical effects: The panel driving mechanism can be installed at the air vent of the bathroom heater. By driving the rotating shaft through the driving unit, the first and second connecting rods work together to enable the panel to precisely perform translational and lifting movements, thereby opening and closing the air vent of the bathroom heater. When the bathroom heater is turned on, the panel can quickly open the air vent to allow air to quickly enter and exit the bathroom heater; when the bathroom heater is not needed, the panel can quickly close the air vent, maintaining the overall aesthetics of the bathroom heater. Furthermore, by covering the air vent with the panel, the chance of dust and dirt entering the interior of the bathroom heater can be effectively reduced, greatly reducing the cleaning frequency and maintenance costs.

[0025] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0026] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0027] Figure 1 This is a schematic diagram of the air vent of the bathroom heater provided in this embodiment in the open state;

[0028] Figure 2 This is a schematic diagram of the air vent of the bathroom heater provided in the embodiment of this disclosure in the covered state;

[0029] Figure 3 This is a schematic diagram of a panel driving mechanism from one perspective provided in an embodiment of this disclosure;

[0030] Figure 4 This is a schematic diagram of a panel driving mechanism from another perspective provided in an embodiment of this disclosure;

[0031] Figure 5 This is a diagram showing the positional relationship between the first link 3 and the second link 4 provided in an embodiment of this disclosure;

[0032] Figure 6 This is a schematic diagram of the connection between the panel driving mechanism and the frame from one perspective provided in an embodiment of this disclosure;

[0033] Figure 7 This is a schematic diagram of the connection between the panel driving mechanism and the frame from another perspective provided in the embodiments of this disclosure.

[0034] Figure label:

[0035] 100 panel drive mechanism;

[0036] 1. Drive unit; 11. Motor; 12. Flange; 2. Shaft;

[0037] 3. First link; 301. First end of first link; 302. Second end of first link;

[0038] 31 First member, 32 Second member;

[0039] 4. Second link; 401. First end of second link; 402. Second end of second link;

[0040] 5 panels, 6 linkage rods, 7 gear sets;

[0041] 200 bathroom heater unit;

[0042] 201 Air vent, 202 Frame, 2021 First side panel, 2022 Second side panel;

[0043] 203 Main unit, 204 Face mask. Detailed Implementation

[0044] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0045] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0046] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0047] Furthermore, the terms "setup," "connection," and "fixation" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances. In the embodiments of this disclosure, communication connections include electrical connections for transmitting electrical signals and optical fiber connections for transmitting optical signals. Without departing from the inventive concept of the embodiments of this disclosure, communication connections can be wired or wireless.

[0048] Unless otherwise stated, the term "multiple" means two or more.

[0049] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0050] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0051] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0052] Combination Figures 1 to 4 As shown in the figure, this embodiment of the present disclosure provides a bathroom heater, which includes a panel driving mechanism 100 and a bathroom heater body 200. The bathroom heater body 200 is provided with an air vent 201, which can be an air outlet or an air inlet, and the panel driving mechanism 100 is disposed at the air vent 201.

[0053] The panel drive mechanism 100 includes a drive unit 1, a rotating shaft 2, a first connecting rod 3, a second connecting rod 4, and a panel 5. The drive unit 1 is connected to the rotating shaft 2 for driving the rotating shaft 2 to rotate. The first end 301 of the first connecting rod 3 is fixedly connected to the rotating shaft 2, and the second end 302 of the first connecting rod 3 is rotatably connected to the bottom surface of the panel 5. The first end 401 of the second connecting rod 4 is rotatably connected to the bathroom heater body 200, and the second end 402 of the second connecting rod 4 is rotatably connected to the bottom surface of the panel 5. The rotation center of the second end 302 of the first connecting rod 3 and the rotation center of the second end 402 of the second connecting rod 4 are parallel to each other and not coaxial.

[0054] The drive unit 1 drives the rotating shaft 2 to rotate. The first connecting rod 3, which is fixedly connected to the rotating shaft 2, is responsible for converting the rotation of the rotating shaft 2 into the movement of the panel 5, determining the starting direction and approximate path of the movement, so that the panel 5 can move between the open vent 201 position and the closed vent 201 position. The second connecting rod 4, which is connected to the bathroom heater body 200 at one end, provides additional support for the panel 5, shares the weight of the panel 5, resists lateral forces, and helps to limit and fine-tune the movement trajectory of the panel 5. The first connecting rod 3 and the second connecting rod 4 work together to enable the panel 5 to perform precise translation and lifting movements, thereby opening and closing the vent 201 of the bathroom heater. The coordinated process of the first connecting rod 3 and the second connecting rod 4 greatly improves the movement stability of the panel 5, avoids swaying and deviation, and accurately controls the movement trajectory of the panel 5. At the same time, the first connecting rod 3 and the second connecting rod 4 share the weight and movement force of the panel 5, reduce connecting rod wear, optimize the power transmission path, reduce energy loss, and achieve fast and precise movement of the panel 5 with less energy consumption.

[0055] In this embodiment of the disclosure, to describe the positional relationship between the first link 3 and the second link 4, it is assumed that there exists a reference plane perpendicular to the rotation axis 2. On this reference plane, the projected length of the line connecting the rotation center of the first end 301 and the rotation center of the second end 302 of the first link 3 is equal to the projected length of the line connecting the rotation center of the first end 401 and the rotation center of the second end 402 of the second link 4; similarly, the projected length of the line connecting the rotation center of the first end 301 of the first link 3 and the rotation center of the first end 401 of the second link 4 is equal to the projected length of the line connecting the rotation center of the second end 302 of the first link 3 and the rotation center of the second end 402 of the second link 4.

[0056] Combination Figure 5 As shown, the projections of the rotation centers of the first end 301 of the first link 3, the second end 302 of the first link 3, the first end 401 of the second link 4, and the second end 402 of the second link 4 onto the reference plane are projection points A, B, C, and D, respectively. Line segment AB is the projection of the line connecting the rotation centers of the first end 301 and the second end 302 of the first link 3 onto the reference plane; line segment CD is the projection of the line connecting the rotation centers of the first end 401 and the second end 402 of the second link 4 onto the reference plane; line segment AC is the projection of the line connecting the rotation centers of the first end 301 of the first link 3 and the first end 401 of the second link 4 onto the reference plane; and line segment BD is the projection of the line connecting the rotation centers of the second end 302 of the first link 3 and the second end 402 of the second link 4 onto the reference plane. Line segment AB and line segment CD have the same length, and line segment AC and line segment BD have the same length. In other words, the closed figure formed by these four projection points as vertices is a parallelogram.

[0057] Understandably, regardless of how the parallelogram is deformed, line segment BD always remains parallel to line segment AC. This means that the line connecting the rotation center of the second end 302 of the first link 3 and the rotation center of the second end 402 of the second link 4 is always parallel to the line connecting the rotation center of the first end 301 of the first link 3 and the rotation center of the first end 401 of the second link 4. When we set the line connecting the rotation center of the first end 301 of the first link 3 and the rotation center of the first end 401 of the second link 4 to be parallel to a specific plane (e.g., a horizontal plane), considering that the second ends of both the first link 3 and the second link 4 are rotatably connected to the bottom surface of the panel 5, when the first link 3 and the second link 4 drive the panel 5 to move, the panel 5 can always remain parallel to that specific plane and will not flip, ensuring that the panel 5 can perform synchronous translation and lifting movements.

[0058] When the bathroom heater is turned on, such as Figure 1 As shown, panel 5 can quickly open vent 201 to allow air to quickly enter and exit the bathroom heater; and when the bathroom heater is not needed, such as... Figure 2 As shown, panel 5 can quickly cover the air vent 201, maintaining the overall aesthetics of the bathroom heater. Furthermore, covering the air vent 201 with panel 5 effectively reduces the chance of dust and dirt entering the bathroom heater, significantly lowering cleaning frequency and maintenance costs.

[0059] In some embodiments, a sleeve may be provided at the first end of the first connecting rod 3, the sleeve being fitted onto the rotating shaft 2 and fixedly connected to the rotating shaft 2. A rotating shaft is provided at the second end 302 of the first connecting rod 3, and a bushing adapted to the rotating shaft is provided on the bottom surface of the panel 5, the rotating shaft being disposed inside the bushing, so as to realize that the second end 302 of the first connecting rod 3 is rotatably connected to the bottom surface of the panel 5.

[0060] In some embodiments, the first end 401 of the second link 4 is provided with a rotating shaft, and the bathroom heater body 200 is provided with a bushing adapted to the rotating shaft. The rotating shaft is disposed in the bushing so that the first end 401 of the second link 4 is rotatably connected to the bathroom heater body 200.

[0061] In some embodiments, the second end 40 of the second link 4 is provided with a pivot, and the bottom surface of the panel 5 is provided with a bushing adapted to the pivot. The pivot is disposed in the bushing so as to realize the rotatable connection between the second end 40 of the second link 4 and the bottom surface of the panel 5.

[0062] In some embodiments, there are multiple first links 3, which are spaced apart along the rotation axis 2, and the rotation centers of all first links 3 are coaxial. Figure 3 and Figure 4 For example, the number of first links 3 is 2, and the two first links 3 are respectively close to the two ends of the rotating shaft 2, and the rotation centers of the two first links 3 are coaxial.

[0063] This embodiment of the disclosure, by setting multiple first links 3 and distributing them at intervals along the rotation axis 2, can distribute the force more evenly. This not only enhances the mechanical strength of the entire panel drive mechanism 100 but also effectively reduces the risk of damage to a single link due to excessive force. Since the rotation centers of the multiple first links 3 are coaxial, this means they can maintain a consistent direction and speed of motion during movement. This design helps ensure that the panel 5 opens or closes more smoothly and accurately, avoiding potential jamming or deviation.

[0064] In some embodiments, multiple first links 3 are interconnected via linkage 6. Linkage 6 ensures that all first links 3 can perform the same movement simultaneously, maintaining a consistent direction and speed, thus guaranteeing smoother and more precise movement of the panel 5 and preventing jamming or deviations caused by asynchrony. Furthermore, connecting multiple first links 3 via linkage 6 forms a more robust overall structure. This not only enhances the mechanical strength of the entire drive mechanism but also effectively distributes forces, reducing the risk of damage to a single link due to excessive force.

[0065] In some embodiments, the first link 3 includes a first member 31 and a second member 32, with one end of the first member 31 connected to one end of the second member 32. The end of the first member 31 away from the second member 32 serves as the first end 301 of the first link 3, and the end of the second member 32 away from the first member 31 is spaced apart from the first member 31 in a direction perpendicular to the first member 31, and this end serves as the second end 302 of the first link 3.

[0066] In this structural design, the end of the second rod 32 serves as the second end 302 of the first link 3. It is not only firmly connected to the rotating shaft 2 but also maintains a certain distance from the first rod 31 in a direction perpendicular to the first rod 31. This arrangement ensures that when the rotating shaft 2 rotates, it can effectively drive the first link 3 to swing. Specifically, during the rotation of the rotating shaft 2, because the end of the second rod 32 is fixedly connected to the rotating shaft 2 and maintains a vertical distance from the first rod 31, the first end 301 of the first link 3 (i.e., the end of the first rod 31 furthest from the second rod 32) can move freely in both horizontal and vertical dimensions. This means that the first end 301 of the first link 3 can perform both translational and lifting movements.

[0067] Through this precise design, the first link 3 can convert the rotational motion of the shaft 2 into a combined translational and lifting motion of the panel 5, thereby achieving precise switching between covering and opening the air vent 201. The first end 301 of the first link 3 moves horizontally, pushing or pulling the panel 5 laterally. Simultaneously, the first end 301 of the first link 3 moves vertically up and down, adjusting the height of the panel 5. The combination of these two movements allows the panel 5 to smoothly and accurately cover and open the air vent 201, improving not only operational flexibility and precision but also enhancing the reliability and stability of the entire system.

[0068] In some embodiments, the drive unit 1 includes a motor 11, the output shaft of which is connected to the rotating shaft 2 via a transmission connection, and the motor can drive the rotating shaft 2 to rotate. Specifically, the panel drive mechanism 100 includes a gear set 7, and the output shaft of the motor 11 is connected to the rotating shaft 2 via the gear set 7.

[0069] Motor 11 is the core power source of drive unit 1, responsible for providing the necessary driving force for the entire panel drive mechanism 100. Gear set 7 is a key transmission device between the output shaft of motor 11 and rotating shaft 2. It not only transmits the power of the motor to rotating shaft 2, but also optimizes the overall performance of the system through a reasonable transmission ratio. The output shaft of motor 11 first meshes with the driving gear in gear set 7, and the rotation of the driving gear drives the driven gear to rotate. In some cases, in order to achieve the ideal transmission ratio and output characteristics, gear set 7 can contain multi-stage gear transmission, with each stage gradually reducing speed and increasing torque through appropriate gear ratios.

[0070] In some embodiments, the drive unit 1 includes a hydraulic device and a crank-connecting rod. The hydraulic device is connected to the rotating shaft 2 via the crank-connecting rod, and can drive the rotating shaft 2 to rotate. Specifically, the hydraulic device transmits power through the pressure of a liquid (usually oil). The hydraulic pump converts mechanical energy into hydraulic energy, and the hydraulic cylinder converts the hydraulic energy back into mechanical energy. The crank-connecting rod mechanism converts linear motion into rotational motion of the rotating shaft 2.

[0071] Combination Figures 6 to 7 As shown, in some embodiments, the bathroom heater body 200 includes a frame 202 that conforms to the shape of the air vent 201, and the frame 202 is disposed inside the air vent 201. The conformal design makes full use of the space of the air vent 201, allowing the components to be arranged compactly, reducing unnecessary volume occupation, and thus improving space utilization. The rotating shaft 2 is rotatably connected to the frame 202, and the first end 401 of the second connecting rod 4 is rotatably connected to the frame 202. Integrating the panel drive mechanism 100 into the frame 202 can reduce the number and complexity of external components, simplify the overall structure, and facilitate installation and maintenance.

[0072] In some embodiments, the frame 202 includes a first side plate 2021 and a second side plate 2022, which are arranged opposite to each other along the length of the air vent 201. The two ends of the rotating shaft 2 are rotatably connected to the first side plate 2021 and the second side plate 2022, respectively, and the first end 401 of the second connecting rod 4 is rotatably connected to the first side plate 2021.

[0073] In some embodiments, the bathroom heater body 200 includes a main unit 203 and a cover 204. The main unit 203 is the core component of the bathroom heater, containing all necessary electrical and mechanical parts, such as heating elements, ventilation systems, and control circuits, and is responsible for providing the main functions of the bathroom heater. The cover 204 is the part directly seen by the user; it not only protects the internal components but also significantly affects the overall appearance design of the bathroom heater. Air vents 201 are provided on the cover 204 for air circulation, ensuring effective transfer of heating or cooling effects. Furthermore, the bottom surface of the cover 204 covers the main unit 203, forming a unified structure, improving the safety and stability of the device. When the panel 5 covers the air vents 201, the top surface of the panel 5 is flush with the top surface of the cover 204, making the overall appearance of the bathroom heater simpler and more unified. The cover 204 of the bathroom heater has no protrusions or recesses, enhancing the overall visual aesthetics.

[0074] In some embodiments, the drive unit 1 is fixed to the bottom surface of the face shield 204. Taking the drive unit 1 as an example, which includes a motor, the drive unit 1 may also include a flange 12, with the motor fixed to the flange 12, which is connected and fixed to the bottom surface of the face shield 204. The flange 12 is typically made of a robust material, such as steel or aluminum alloy, which gives it sufficient strength and rigidity to withstand the various forces and vibrations generated during motor operation. By fixing the flange 12 to the face shield 204 using bolts or other fasteners, it can be ensured that there will be no loosening or displacement even during long-term use.

[0075] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A panel driving mechanism, characterized in that, For installation at the air vent of the bathroom heater body, the panel drive mechanism includes a drive unit, a rotating shaft, a first connecting rod, a second connecting rod, and a panel. The drive unit can be fixed to the bathroom heater body, and the rotating shaft can be rotatably installed on the bathroom heater body. The drive unit is connected to the rotating shaft for driving the rotating shaft to rotate; The first end of the first link is fixedly connected to the rotating shaft, and the second end of the first link is rotatably connected to the bottom surface of the panel. The first end of the second link is rotatably connected to the main body of the bathroom heater, and the second end of the second link is rotatably connected to the bottom surface of the panel. The rotation center of the second end of the first link is parallel to and not coaxial with the rotation center of the second end of the second link.

2. The panel driving mechanism according to claim 1, characterized in that, There are multiple first links, which are distributed at intervals along the rotation axis, and the rotation centers of each first link are coaxial.

3. The panel driving mechanism according to claim 2, characterized in that, Multiple first links are interconnected via linkages.

4. The panel driving mechanism according to claim 1, characterized in that, The first link includes a first member and a second member, with one end of the first member connected to one end of the second member; The end of the first member furthest from the second member is designated as the first end of the first link. The end of the second member furthest from the first member is spaced apart from the first member in a direction perpendicular to the first member, and this end serves as the second end of the first connecting rod.

5. The panel driving mechanism according to claim 1, characterized in that, The drive unit includes a motor, and the output shaft of the motor is connected to the rotating shaft for transmission.

6. A bathroom heater, characterized in that, It includes the main body of the bathroom heater and the panel driving mechanism as described in any one of claims 1 to 5; The bathroom heater body is equipped with an air vent, and the panel drive mechanism is located at the air vent. The drive unit is fixed to the bathroom heater body, the rotating shaft is rotatably mounted on the bathroom heater body, and the first end of the second connecting rod is rotatably connected to the bathroom heater body.

7. The bathroom heater according to claim 6, characterized in that, The main body of the bathroom heater includes a frame that conforms to the shape of the air vent, and the frame is set inside the air vent; The pivot is rotatably connected to the frame, and the first end of the second link is rotatably connected to the frame.

8. The bathroom heater according to claim 7, characterized in that, The frame includes a first side panel and a second side panel, which are arranged opposite to each other along the length of the air vent. The two ends of the rotating shaft are rotatably connected to the first side plate and the second side plate, respectively, and the first end of the second connecting rod is rotatably connected to the first side plate.

9. The bathroom heater according to claim 7, characterized in that, The bathroom heater unit includes a main unit and a face shield. The face shield is equipped with air vents, and the bottom of the face shield covers the main unit. When the panel covers the air vent, the top surface of the panel is flush with the top surface of the mask.

10. The bathroom heater according to claim 9, characterized in that, The drive unit is fixed to the bottom surface of the mask.

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