Opening / closing member driving device and intelligent toilet lid using same

Abstract

The utility model discloses an opening and closing part driving device and an intelligent toilet lid using the opening and closing part driving device. An output shaft having one end protruding from the housing; the motor is accommodated in the shell; the transmission assembly is contained in the shell and transmits rotation of the motor to the output shaft. Wherein the interior of the shell is divided into a first cavity and a second cavity through a middle supporting plate; the end face, facing the first cavity, of the middle supporting plate is provided with a protruding supporting part capable of rotatably supporting the output shaft. The motor is contained in the second cavity, and the end face, facing the second cavity, of the middle supporting plate is provided with a protruding connection part used for being matched with the motor in a lap joint mode.

Description

Technical Field

[0001] This utility model relates to the field of smart home technology, and in particular to a drive device for opening and closing components and a smart toilet seat using the same. Background Technology

[0002] Smart toilets incorporate a lid-opening mechanism for automatically opening or closing the lid or seat. This mechanism is invisible during use, and its miniaturization contributes to a cleaner toilet appearance and frees up space for other functional components. Therefore, the overall size of the lid-opening mechanism needs to be optimized without compromising product performance, making it as compact as possible.

[0003] Based on the above requirements, for example, CN111756156B discloses an opening and closing component drive device, which uses a housing with a support portion that rotatably supports an output shaft, and a motor with a receiving portion that supports the support portion from a side opposite to the output shaft in the axial direction. Furthermore, the support portion is supported by the flat surface of the motor via an intermediate plate. While this design can reduce the overall size of the drive device, actual research has revealed the following drawbacks:

[0004] Firstly, regarding the support section, the overall support section is roughly a cantilever structure with a relatively high axial height.

[0005] Furthermore, the main stress-bearing part, the "front end," is far from the root, which means that even a small force applied to the front end can create a large bending moment at the root (moment equals force multiplied by lever arm; in this design, the stress point at the front end of the support and the root form a large lever arm), making the support prone to bending and cracking.

[0006] Secondly, electric motors are easily damaged. The middle part of the flat surface of an electric motor is a weak point and is not suitable for supporting other structures. Furthermore, the inside of an electric motor contains brittle and weak magnets. Therefore, when the flat surface is subjected to pressure from deformed support parts, the magnets are extremely easy to be damaged, causing the electric motor to be scrapped or its performance to deteriorate.

[0007] For example, CN215533949 U discloses a low-noise opening and closing component drive device, which reduces vibration noise by setting support members 4 to support small-diameter bosses at both ends of the motor. Specifically, the ends of the two support members away from the motor base have slots, and the motor housing has bosses at both ends. The two slots are used to connect the bosses at both ends of the motor housing, and the two support members can deform to cover the bosses of the motor. However, actual research has found that this structure cannot actually achieve stable positioning of the motor because the small bosses on the motor are cylindrical structures and cannot be effectively limited circumferentially by the support members. During use, the motor deflects around the bosses and impacts the flip-top housing, generating more noise.

[0008] In summary, given the various shortcomings of the existing opening and closing component drive devices, it is necessary to further improve the fit structure between the support part for supporting the output shaft and the motor to optimize its overall performance. Utility Model Content

[0009] The primary objective of this invention is to provide a drive device for opening and closing components to address the technical problem of optimizing the overall performance of the device.

[0010] The second objective of this invention is to provide an intelligent toilet seat to address the issue of optimizing the overall performance of the opening and closing component drive device.

[0011] The opening and closing component driving device of this utility model is implemented as follows:

[0012] A drive device for opening and closing components, comprising:

[0013] case;

[0014] An output shaft, one end of which protrudes from the housing;

[0015] The motor, which is housed within the housing; and

[0016] A transmission assembly, housed within the housing, transmits the rotation of the motor to the output shaft; wherein

[0017] The shell is divided into a first cavity and a second cavity by an intermediate support plate;

[0018] The intermediate support plate has a protruding support portion on the end face facing the first cavity that can rotatably support the output shaft;

[0019] The motor is housed in the second cavity, and the end face of the intermediate support plate facing the second cavity has a protruding connecting part for connecting and engaging with the motor.

[0020] In an optional embodiment of this utility model, the connecting part includes two lapped ribs arranged in pairs and both extending along the motor axis;

[0021] An overlap area suitable for the motor portion to be embedded is formed between the two aforementioned lap ribs;

[0022] The two lap joints are used to abut against the outer contour of the end face of the motor facing the intermediate support plate.

[0023] In an optional embodiment of this utility model, each of the lap joints includes a body portion extending along the motor axial direction, and at least two receiving portions protruding from the body portion toward the lap area; and

[0024] At least two of the receiving parts are spaced apart along the axial direction of the motor.

[0025] In an optional embodiment of this utility model, each of the lap joints includes two receiving portions, and the two receiving portions are distributed one-to-one at the two ends of the main body along the motor axis.

[0026] In an optional embodiment of this utility model, each of the receiving parts is formed with a receiving surface that fits the outer wall surface of the motor.

[0027] In an optional embodiment of this utility model, the receiving surface is an inclined surface or an arc surface that is inclined relative to the end face of the intermediate support plate facing the motor.

[0028] In an optional embodiment of this utility model, when the two lap joints abut against the outer contour of the end face of the motor facing the intermediate support plate, there is a gap between the motor and the facing end faces of the intermediate support plate.

[0029] In an optional embodiment of this utility model, the support portion is a support column with a shaft hole suitable for mating with the output shaft.

[0030] In an optional embodiment of this utility model, the outer periphery of the support column is provided with an annular reinforcing portion arranged concentrically with the support column.

[0031] In an optional embodiment of this invention, the annular reinforcing part is connected to the outer wall of the supporting column by multiple reinforcing ribs distributed along the circumference.

[0032] The intelligent toilet seat of this utility model is implemented as follows:

[0033] A smart toilet seat includes: the opening and closing component driving device.

[0034] By adopting the above technical solution, this utility model has the following beneficial effects: The opening / closing component drive device and the smart toilet seat using it, for the intermediate support plate that forms a separation between the two different cavities housing the output shaft and the motor, have a protruding connecting part on the end face of the intermediate support plate facing the cavity housing the motor, for engaging with the motor. On the one hand, without affecting the reliable support of the overall intermediate support plate for the output shaft, it also avoids the problem of deformation of the motor housing due to overall stress, or even affecting the internal structure of the motor; on the other hand, the engagement between the connecting part and the motor can also prevent the motor from shaking during use, thereby reducing the noise during motor operation. Attached Figure Description

[0035] Figure 1This is an exploded structural diagram of the opening and closing component driving device of this utility model;

[0036] Figure 2 This is a cross-sectional structural schematic diagram of the opening and closing component driving device of this utility model;

[0037] Figure 3 This is a cross-sectional view of the first housing of the opening and closing component driving device of this utility model.

[0038] Figure 4 This is a schematic diagram of the intermediate support plate of the opening and closing component driving device of this utility model;

[0039] Figure 5 This is a schematic diagram showing the intermediate support plate of the opening / closing component drive device of this utility model in conjunction with the motor.

[0040] Figure 6 This is a cross-sectional schematic diagram showing the motor and connecting part of the opening and closing component driving device of this utility model in a coordinated state.

[0041] Figure 7 This is a cross-sectional view of the intermediate support plate and the motor in the operating state of the opening and closing component drive device of this utility model.

[0042] In the figure: 1. Shell cover; 2. First shell; 3. Second shell; 4. Output shaft; 5. Transmission assembly; 6. Motor; 7. Intermediate support plate; 8. Overlapping rib; 801. Body; 802. Receiving part; 803. Receiving surface; 10. Spring; 11. Support column; 12. Shaft hole; 13. Annular reinforcing part; 14. Reinforcing rib; 15. Gap K. Detailed Implementation

[0043] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0044] Example 1:

[0045] Please see Figures 1 to 7 As shown, this embodiment provides a drive device for opening and closing components, including: a housing, a motor 6 and a transmission assembly 5 disposed within the housing, and an output shaft 4 protruding from the housing at one end. The motor 6 is used to output power, and the transmission assembly 5 is used to transmit the rotation of the motor 6 to the output shaft 4. The transmission assembly 5 can employ any mature method in the prior art, for example, it consists of a worm gear and multiple cylindrical gears, connecting the rotating shaft of the motor 6 to the output shaft 4, for speed reduction and power amplification, that is, reducing the high rotational speed of the motor 6's rotating shaft to the low rotational speed of the output shaft 4, and increasing the small torque output by the motor 6's rotating shaft to the large torque of the output shaft 4.

[0046] The specific layout of the output shaft 4 and the motor 6 within the housing in this embodiment will now be described in detail with reference to the accompanying drawings:

[0047] First, regarding the housing, its interior is divided into a first cavity and a second cavity by a central support plate 7. The output shaft 4 is located in the first cavity, while the motor 6 is housed in the second cavity. Specifically, in this embodiment, the housing is assembled from a cover 1, a first housing 2, and a second housing 3. The cover 1 is fitted onto the first housing 2, and the first housing 2 is fitted onto the second housing 3. The first cavity is primarily formed within the first housing 2, and the second cavity is primarily formed within the second housing 3. The side plate of the first housing 2 facing the second housing 3 can also be understood as the bottom plate of the first housing 2, which is the central support plate 7 in this embodiment. When the first housing 2 and the second housing 3 are assembled, the bottom plate of the first housing 2 precisely forms the separation between the first cavity and the second cavity.

[0048] Based on the above structure, it should be noted that, firstly, the end face of the intermediate support plate 7 facing the first cavity is provided with a protruding support portion that rotatably supports the output shaft 4. Referring to the accompanying drawings, in one optional case, the support portion is a support column 11 with a shaft hole 12 suitable for fitting the output shaft 4.

[0049] Furthermore, the outer periphery of the support column 11 is provided with an annular reinforcing portion 13 arranged concentrically with the support column. It should be noted that, in terms of the axial dimension of the annular reinforcing portion 13, since it does not directly contact the output shaft 4, it will not cause interference during the rotation of the output shaft 4. Therefore, the axial length of the annular reinforcing cloth can be appropriately increased. In terms of its radial dimension, since its outer periphery needs to be adapted to the spring 10 required by the opening and closing component drive device (the implementation principle of the spring 10 can be any mature means in the prior art, which will not be described in detail in this embodiment), the overall radial parameters of the annular reinforcing portion 13 are designed to adapt to the required spring 10. Optionally, the annular reinforcing portion 13 here is connected to the outer wall of the support column 11 by multiple reinforcing ribs 14 distributed along the circumferential direction.

[0050] In this embodiment, the ring-shaped reinforcing part 13 is used in conjunction with the supporting part to enhance the structural strength of the supporting part and distribute the force on the supporting part to a larger diameter area, thereby reducing the stress at the root of the supporting part connected to the intermediate support plate 7, thus reducing the deformation of the intermediate panel and further improving the reliability of the supporting effect.

[0051] Secondly, let's discuss the cooperation between the intermediate support plate 7 and the motor 6:

[0052] The end face of the intermediate support plate 7 facing the second cavity has a protruding connecting part for engaging with the motor 6. This connecting part is preferably integrally formed with the intermediate support plate 7, primarily for engaging with the motor 6. This prevents the motor 6 from directly contacting the intermediate support plate 7, thus reducing the force exerted on the intermediate support plate 7 by supporting the output shaft 4 and preventing it from being directly transmitted to the motor 6. Simultaneously, the design of the connecting part, in conjunction with the second housing 3, contributes to stabilizing the motor 6 during operation.

[0053] Based on the above requirements, and referring to the accompanying drawings, one optional scenario is provided: the connecting portion includes two overlapping ribs 8 arranged in pairs and extending along the axial direction of the motor 6; an overlapping area is formed between the two overlapping ribs 8 suitable for partial embedding of the motor 6; the two overlapping ribs 8 are used to abut against the outer contour of the end face of the motor 6 facing the intermediate support plate 7. That is, for the connecting portion, it only contacts the outer contour of the end face of the motor 6 facing the intermediate support plate 7, and specifically the two outer contours along the axial direction of the motor 6, rather than contacting the entire end face of the motor 6. In this design, when the two overlapping ribs 8 abut against the outer contour of the end face of the motor 6 facing the intermediate support plate 7, a gap K exists between the facing end faces of the motor 6 and the intermediate support plate 7, which can prevent the weak middle portion of the plane of the motor 6 facing the intermediate support plate 7 from being damaged by the supporting force generated during the operation of the output shaft 4.

[0054] Furthermore, it should also be noted in this embodiment that:

[0055] Each lap joint 8 includes a body 801 extending along the axial direction of the motor 6, and at least two receiving portions 802 protruding from the body 801 toward the lap area; and the at least two receiving portions 802 are spaced apart along the axial direction of the motor 6. The at least two receiving portions 802 designed on each lap joint 8 are mainly used to achieve contact support at the corners of the two axial outer contours of the motor 6 toward the intermediate support plate 7, thereby enabling the overall lap joint 8 to achieve a better fit to the outer surface of the motor 6.

[0056] Based on the above, and referring to the accompanying drawings, one optional scenario is provided: each lap joint 8 includes two receiving portions 802, and the two receiving portions 802 are distributed one-to-one at the two ends of the main body 801 along the axial direction of the motor 6. In this structure, when the first housing 2 and the second housing 3 are assembled, the two outer contours along the axial direction of the motor 6 facing the intermediate support plate 7, as well as the two corners of the outer contours, are pressed against the lap joint 8, preventing the motor 6 from wobbling within the second housing 3. The reason for designing the lap joint 8 to engage with the two outer contours along the axial direction of the motor 6 and the two corners of the outer contours is that the structural strength of the aforementioned parts of the motor 6 is greater than that of other parts of the motor 6 facing the intermediate support plate 7. Therefore, this reduces the destructive effect of the supporting force on the motor 6.

[0057] Furthermore, considering the fit between the receiving part 802 and the outer surface of the motor 6, each receiving part 802 is formed with a receiving surface 803 that fits the outer wall surface of the motor 6. Depending on the specific shape of the motor 6, the receiving surface 803 is an inclined surface or a curved surface that is inclined relative to the end face of the intermediate support plate 7 facing the motor 6.

[0058] In summary, for the opening and closing component drive device of this embodiment, on the one hand, without affecting the reliable support of the overall intermediate support plate 7 for the output shaft 4, it can also simultaneously avoid the problem of deformation of the motor 6 housing due to the overall force on the motor 6 housing or even affect the internal structure of the motor 6; on the other hand, the cooperation between the connecting part and the motor 6 can also prevent the motor 6 from shaking during use, thereby reducing the noise of the motor 6 during use.

[0059] Example 2:

[0060] Based on the opening and closing component driving device of Embodiment 1, this embodiment provides a smart toilet seat, including: the opening and closing component driving device of Embodiment 1.

[0061] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0062] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0063] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0065] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0066] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. An opening and closing member driving device characterized by comprising: The application relates to a driving device for an opening and closing component. The driving device comprises: a housing; an output shaft protruding from the housing; a motor accommodated in the housing; and a transmission assembly accommodated in the housing and transmitting rotation of the motor to the output shaft; wherein the housing is divided into a first cavity and a second cavity by an intermediate support plate; an end surface of the intermediate support plate facing the first cavity is provided with a protruding support portion rotatably supporting the output shaft; 2. The opening and closing member drive device according to claim 1, characterized by the motor is accommodated in the second cavity, and an end surface of the intermediate support plate facing the second cavity is provided with a protruding engagement portion for engagement with the motor. The engagement portion comprises two engagement ribs arranged in pairs and extending along the axial direction of the motor. An engagement area suitable for embedding the motor is formed between the two engagement ribs.

3. The opening and closing member driving device according to claim 2, characterized in that, The two engagement ribs are used to abut against the outer contour of the end surface of the motor facing the intermediate support plate. Each of the engagement ribs comprises a body portion extending along the axial direction of the motor, and at least two receiving portions protruding from the body portion towards the engagement area; and 4. The opening and closing member driving device according to claim 3, characterized in that The at least two receiving portions are distributed along the axial direction of the motor.

5. The opening and closing member driving device according to claim 3 or 4, characterized in that, Each of the engagement ribs comprises two receiving portions, and the two receiving portions are one-to-one distributed at the two ends of the body portion along the axial direction of the motor.

6. The opening and closing member driving device according to claim 5, characterized in that Each of the receiving portions is shaped with a receiving surface matching the outer wall surface of the motor.

7. The opening and closing member driving device according to claim 3 or 4, characterized in that, The receiving surface is an inclined surface or an arc surface arranged obliquely relative to the end surface of the intermediate support plate facing the motor.

8. The opening and closing member driving device according to claim 1, characterized in that When the two engagement ribs abut against the outer contour of the end surface of the motor facing the intermediate support plate, a gap exists between the end surfaces of the motor and the intermediate support plate facing each other.

9. The opening and closing member driving device according to claim 8, characterized in that, The support portion is a support column provided with a shaft hole suitable for engaging the output shaft.

10. The opening and closing member driving device according to claim 9, characterized in that, An annular reinforcing portion is arranged concentrically with the support column on the outer circumferential side of the support column.

11. A smart toilet lid characterized by, The annular reinforcing portion is connected to the outer side wall of the support column by a plurality of reinforcing ribs distributed along the circumferential direction. The application also relates to an opening and closing component driving device. The driving device comprises: the opening and closing component driving device according to any one of claims 1 to 10.

Images