tubular motor

Abstract

This application discloses a tubular motor, including: a fixed base, a drive assembly, an obstruction detection assembly, a control module, and a signal detection module; the drive assembly is located at one end of the fixed base; the obstruction detection assembly includes an inner component and an outer component, one of which is connected to the output end of the drive assembly, and the other is connected to an external curtain roller tube, with a gap between the inner and outer components; when the lower end of the external curtain encounters an obstruction, the inner and outer components can rotate relative to each other, and at least one of the inner and outer components is a noise-reducing component; the control module is located at one end of the fixed base and electrically connected to the drive assembly; the signal detection module is electrically connected to the control module and is used to detect the signal of relative rotation between the inner and outer components, and to transmit the signal to the control module so that the control module can control the start and stop of the drive assembly. The tubular motor of this application can achieve both noise reduction and curtain lower end obstruction protection.

Description

Technical Field

[0001] This application relates to the field of motor technology, and in particular to a tubular motor. Background Technology

[0002] In related technologies, tubular motors are mainly used to provide power for devices such as electric curtains, electric roller shutters, electric awnings, and electric projection screens. Existing tubular motors typically connect their output end to an external curtain roller via an obstruction detection component. This allows the tubular motor to pause operation promptly when the lower part of the curtain encounters an obstruction, providing protection for occupants. However, the rotation of the tubular motor's output end causes continuous vibration and noise during operation. This vibration also leads to collisions between internal components of the obstruction detection component, resulting in increased noise and impacting the user experience. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes a tubular motor that can simultaneously reduce noise and provide protection against obstruction at the bottom of curtains.

[0004] The tubular motor according to an embodiment of the present invention includes: a fixed base, a drive assembly, an obstruction detection assembly, a control module, and a signal detection module; the drive assembly is disposed at one end of the fixed base; the obstruction detection assembly includes an inner component and an outer component, one of which is connected to the output end of the drive assembly, and the other is connected to an external curtain roller tube, with a gap between the inner component and the outer component; when the lower end of the external curtain encounters an obstruction, the inner component and the outer component can rotate relative to each other, and at least one of the inner component and the outer component is a silent component; the control module is disposed at one end of the fixed base and electrically connected to the drive assembly; the signal detection module is electrically connected to the control module and is used to detect the signal of relative rotation between the inner component and the outer component, and to transmit the signal to the control module so that the control module can control the start and stop of the drive assembly.

[0005] The tubular motor according to the embodiments of this utility model has at least the following beneficial effects: This tubular motor includes a fixed base, a drive assembly, an obstacle detection assembly, a control module, and a signal detection module; in use, the outer curtain descends under its own weight, and the outer curtain roller connected to the outer curtain rotates accordingly. The drive assembly drives the obstacle detection assembly to rotate, thus not hindering the rotation of the roller. When the lower end of the outer curtain encounters an obstacle, the outer curtain stops descending. Because there is a gap between the internal and external parts of the obstacle detection assembly to allow relative rotation between them, the part of the obstacle detection assembly fixed to the outer roller stops rotating when an obstacle is encountered, while the output of the drive assembly is fixed to the obstacle detection assembly. The end portion can continue to rotate. At this time, the signal detection module detects a signal of relative rotation between the outer and inner parts of the obstruction detection component and transmits the signal to the control module. After receiving the obstruction detection signal, the control module controls the drive component to stop driving the rotation, thereby protecting the structure of the tubular motor and the outer roller blind from damage. At the same time, the obstruction detection pause ensures safety. In addition, the obstruction detection component is located inside the tubular motor, and at least one of the inner and outer parts of the obstruction detection component is a silent component, thus reducing vibration and noise during transmission and improving the user experience. Therefore, the tubular motor of this application has the effects of noise reduction and obstruction detection protection at the bottom of the curtain.

[0006] According to some embodiments of the present invention, one end of the outer component is fixedly connected to the output end of the drive assembly, and the other end of the outer component is provided with a rotating groove. One end of the inner component is used to connect to the external curtain roller tube, and the other end of the inner component is provided with an insertion part. The insertion part is inserted into the rotating groove, and a gap is formed between the insertion part and the rotating groove. The inner component is a silent component.

[0007] According to some embodiments of the present invention, an inner tube and a second silencing component are sequentially sleeved on the outside of the drive assembly. The inner tube is sleeved on the drive assembly and housed within the second silencing component. The inner wall of the second silencing component abuts against the outer wall of the inner tube. An outer tube is fixedly connected to a fixing seat. The outer tube is sleeved on the outside of the control module, the drive assembly, and the obstacle detection assembly. The outer wall of the second silencing component abuts against the inner wall of the outer tube.

[0008] According to some embodiments of this utility model, the second sound-absorbing component is sound-absorbing cotton.

[0009] According to some embodiments of the present invention, the drive assembly includes a mounting base, a motor, and a third noise-reducing component. The mounting base is located at the end of the motor away from the obstruction-detecting component and is fixed to the outer tube. The third noise-reducing component is located between the mounting base and the motor.

[0010] According to some embodiments of the present invention, it also includes an output shaft, which is connected to the end of the obstruction detection component away from the drive component. The output shaft includes a pin portion and a connecting portion. The insertion portion is hollow, the pin portion is inserted into the insertion portion, and the connecting portion is used to connect to an external curtain roller.

[0011] According to some embodiments of the present invention, it also includes a limiting tube, which is sleeved on the output shaft and has a fourth silencing component sleeved on its outside. The mounting base is sleeved with a fifth silencing component, and both the fourth and fifth silencing components abut against the inner wall of the outer tube.

[0012] According to some embodiments of the present invention, both the fourth and fifth noise reduction components are O-ring components.

[0013] According to some embodiments of the present invention, it further includes a first fastener and a second fastener. The first fastener connects the outer tube and the mounting base. At least one O-ring in the fifth silencing component is disposed on the side of the first fastener near the motor. The second fastener connects the outer tube and the limiting tube. At least one O-ring in the fourth silencing component is disposed on the side of the second fastener near the motor.

[0014] According to some embodiments of this utility model, the rotating groove is an elliptical groove, the insertion part is cylindrical, and the gap allows the inner and outer parts to rotate relative to each other at an angle of 15°-20°.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the tubular motor of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the tubular motor after the outer casing has been removed;

[0019] Figure 3 for Figure 1 A cross-sectional view of a tubular motor from one perspective;

[0020] Figure 4 for Figure 1 A schematic diagram of the structure of the tubular motor, including the outer components, inner components, output shaft, and limiting tube;

[0021] Figure 5 for Figure 1 A cross-sectional view of the tubular motor from another perspective.

[0022] Figure label:

[0023] Fixed base 100; drive assembly 200; mounting base 210; motor 220; third noise reduction component 230; obstacle detection component 300; internal component 310; insertion part 311; external component 320; rotating groove 321; control module 400; inner tube 510; second noise reduction component 520; outer tube 530; output shaft 610; pin part 611; connecting part 612; limit tube 620; fourth noise reduction component 630; fifth noise reduction component 640. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0026] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0028] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The following is for reference. Figures 1 to 5A tubular motor according to an embodiment of the present invention.

[0030] like Figures 1 to 3 As shown, the tubular motor according to an embodiment of the present invention includes: a fixed base 100, a drive assembly 200, an obstacle detection assembly 300, a control module 400, and a signal detection module; the drive assembly 200 is disposed at one end of the fixed base 100; the obstacle detection assembly 300 includes an inner component 310 and an outer component 320, one of which is connected to the output end of the drive assembly 200, and the other is connected to an external curtain roller tube, with a gap between the inner component 310 and the outer component 320; when When the lower end of the outer curtain encounters an obstruction, the inner component 310 and the outer component 320 can rotate relative to each other. At least one of the inner component 310 and the outer component 320 is a silent component. The control module 400 is located at one end of the fixed base 100 and is electrically connected to the drive assembly 200. The signal detection module is electrically connected to the control module 400 and is used to detect the signal of relative rotation between the inner component 310 and the outer component 320, and to transmit the signal to the control module 400 so that the control module 400 can control the start and stop of the drive assembly 200.

[0031] Understandably, this tubular motor includes a mounting base 100, a drive assembly 200, an obstacle detection assembly 300, a control module 400, and a signal detection module. In use, the outer curtain descends under its own weight, causing the outer curtain roller connected to it to rotate. The drive assembly 200 drives the obstacle detection assembly 300 to rotate, thus not hindering the rotation of the roller. When the lower end of the outer curtain encounters an obstacle, the curtain stops descending. Because there is a gap between the inner component 310 and the outer component 320 of the obstacle detection assembly 300 to allow relative rotation, the portion of the obstacle detection assembly 300 fixed to the outer roller stops rotating when an obstacle is encountered. The portion of the obstacle detection assembly 300 fixed to the output end of the drive assembly 200... It can continue to rotate. At this time, the signal detection module detects a signal of relative rotation between the outer part 320 and the inner part 310 in the obstruction detection component 300, and transmits the signal to the control module 400. After receiving the obstruction detection signal, the control module 400 controls the drive component 200 to stop driving rotation, thereby protecting the structure of the tubular motor and the outer roller blind from damage. At the same time, the obstruction detection pause ensures safety. In addition, the obstruction detection component 300 is located inside the tubular motor, and at least one of the inner part 310 and the outer part 320 in the obstruction detection component 300 is a silent component, thus reducing vibration and noise during transmission and improving the user experience. Therefore, the tubular motor of this application has the effects of noise reduction and obstruction detection protection at the bottom of the curtain.

[0032] In the obstruction detection assembly 300, at least one of the inner component 310 and the outer component 320 is a silent component; that is, the inner component 310 can be a silent component, the outer component 320 can be a silent component, or both the inner component 310 and the outer component 320 can be silent components. In the obstruction detection assembly 300, the inner component 310 can be fixedly connected to the output terminal of the drive assembly 200, and the outer component 320 can be fixedly connected to the external curtain roller tube; alternatively, the inner component 310 can be fixedly connected to the external curtain roller tube, and the outer component 320 can be fixedly connected to the output terminal of the drive assembly 200.

[0033] Specifically, the sound-absorbing components can be made of silicone, rubber, sound-absorbing cotton, foam, etc., as long as they can achieve a sound-absorbing effect.

[0034] One of the inner component 310 and the outer component 320 is connected to the external curtain roller tube, either directly or indirectly through other components.

[0035] Understandably, one end of the outer component 320 is fixedly connected to the output end of the drive assembly 200, and the other end of the outer component 320 has a slot 321. One end of the inner component 310 is used to connect to the external curtain roller tube, and the other end of the inner component 310 has an insertion part 311, which is inserted into the slot 321. A gap is formed between the insertion part 311 and the slot 321. The inner component 310 is a silent component. For example, Figure 3 As shown, in this embodiment, the outer component 320 of the obstruction detection component 300 is connected to the drive component 200, and the inner component 310 is connected to the external curtain roller tube. The insertion part 311 of the inner component 310 is inserted into the rotating groove 321 of the outer component 320. When obstruction occurs, the insertion part 311 rotates relative to the rotating groove 321. The signal detection module detects the obstruction signal. The inner component 310 is set as a silent component, thereby reducing not only the vibration and noise inside the obstruction detection component 300, but also the vibration and noise between the obstruction detection component 300 and the related structure of the connected external curtain roller tube.

[0036] It is understood that an inner tube 510 and a second silencing component 520 are sequentially sleeved outside the drive assembly 200. The inner tube 510 is sleeved within the drive assembly 200 and housed within the second silencing component 520. The inner wall of the second silencing component 520 abuts against the outer wall of the inner tube 510. An outer tube 530 is fixedly connected to the fixing base 100. The outer tube 530 is sleeved outside the control module 400, the drive assembly 200, and the obstacle detection component 300. The outer wall of the second silencing component 520 abuts against the inner wall of the outer tube 530. For example, as... Figures 2 to 5As shown, in this embodiment, since the inner tube 510, the second noise-reducing component 520 and the outer tube 530 are sequentially sleeved outside the drive assembly 200, the inner wall of the second noise-reducing component 520 abuts against the outer wall of the inner tube 510 and the outer wall of the second noise-reducing component 520 abuts against the inner wall of the outer tube 530. Therefore, the vibration and noise inside the drive assembly 200 are further contained inside the tubular motor, thereby further improving the noise reduction effect.

[0037] It is understandable that the second sound-absorbing component 520 is sound-absorbing cotton. For example, as... Figure 5 As shown, in this embodiment, the second noise-reducing component 520 is made of noise-reducing cotton. The noise-reducing cotton wraps around the inner tube 510 and is also housed in the outer tube 530, thereby reducing the overall weight while reducing noise.

[0038] It is understood that the drive assembly 200 includes a mounting base 210, a motor 220, and a third noise-reducing component 230. The mounting base 210 is located at the end of the motor 220 away from the obstruction-detecting component 300 and is fixed to the outer tube 530. The third noise-reducing component 230 is located between the mounting base 210 and the motor 220. For example, as... Figure 5 As shown, in this embodiment, by providing a third noise reduction component 230 between the motor 220 and the mounting base 210, noise reduction is also achieved at the end of the drive assembly 200 away from the obstruction assembly 300, thereby improving the overall noise reduction effect of the tubular motor.

[0039] It is understood that an output shaft 610 is also included. The output shaft 610 is connected to the end of the obstruction detection assembly 300 away from the drive assembly 200. The output shaft 610 includes a pin portion 611 and a connecting portion 612. The insertion portion 311 is hollow, and the pin portion 611 is inserted into the insertion portion 311. The connecting portion 612 is used to connect to an external curtain roller. For example, as... Figures 3 to 5 As shown, in this embodiment, the output shaft 610 is located at the end of the obstruction detection component 300 away from the motor 220 and is used to connect to the external curtain roller. The obstruction detection component 300 can be directly or indirectly connected to the external curtain roller through the output shaft 610. The end of the output shaft 610 away from the motor 220 is a universal connection part 612, thereby improving the adaptability of the output end of the tubular motor. The end of the output shaft 610 near the motor 220 is provided with a pin part 611, which is inserted into the insertion part 311 of the inner component 310, thereby realizing the fixed connection between the inner component 310 and the output shaft 610.

[0040] Understandably, it also includes a limiting tube 620, which is sleeved on the output shaft 610 and externally fitted with a fourth silencing component 630. A fifth silencing component 640 is fitted on the mounting base 210. Both the fourth silencing component 630 and the fifth silencing component 640 abut against the inner wall of the outer tube 530. For example, as... Figures 2 to 5As shown, in this embodiment, the outer tube 530 is fixedly connected to the fixing base 100, the fourth noise reduction component 630 is disposed between the limiting tube 620 and the outer tube 530, thereby reducing the vibration of the limiting tube 620 brought by the output shaft 610, and thus reducing noise. The fifth noise reduction component 640 is disposed between the mounting base 210 and the outer tube 530, thereby reducing the vibration and noise at the other end of the motor 220.

[0041] It is understandable that both the fourth noise reduction component 630 and the fifth noise reduction component 640 are O-ring components. For example, as Figure 2 As shown, in this embodiment, both the fourth silencing component 630 and the fifth silencing component 640 are O-ring components composed of multiple O-rings.

[0042] Understandably, it also includes a first fastener and a second fastener. The first fastener connects the outer tube 530 and the mounting base 210. At least one O-ring in the fifth noise-reducing assembly 640 is located on the side of the first fastener closest to the motor 220. The second fastener connects the outer tube 530 and the limiting tube 620. At least one O-ring in the fourth noise-reducing assembly 630 is located on the side of the second fastener closest to the motor 220. For example, as... Figure 2 As shown, in this embodiment, at least one O-ring is provided on the side of the first fastener connecting the outer tube 530 and the mounting base 210 near the motor 220, thereby improving the waterproofness of one end of the mounting base 210 of the drive assembly 200. At least one O-ring is provided on the side of the second fastener connecting the outer tube 530 and the limiting tube 620 away from the motor 220, thereby improving the waterproof performance of one end of the limiting tube 620 of the drive assembly 200, thereby extending the service life of the drive assembly 200.

[0043] It is understandable that the rotating groove 321 is an elliptical groove, the insertion part 311 is cylindrical, and the gap allows the inner part 310 and the outer part 320 to rotate relative to each other at an angle of 15°-20°. For example, as... Figure 3 As shown, in this embodiment, the cylindrical insertion part 311 of the inner component 310 is inserted into the elliptical rotating groove 321 of the outer component 320, and the gap formed allows for relative rotation of 15-20°, so that the signal detection module can detect the obstruction signal, adjust in time, and stop driving.

[0044] It should be understood that in some other embodiments, the slot 321 can also be configured as an arc-shaped slot, and the insertion part 311 can also be configured as other shapes, as long as the gap reaches 15°-20°.

[0045] It should be understood that the drive assembly 200 also includes a gearbox connected to the motor 220, which is connected to the obstacle detection assembly 300 via the gearbox.

[0046] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A tubular motor characterized in that, include: Fixed base; The drive assembly is located at one end of the fixed base; An obstruction-detecting component includes an inner component and an outer component. One of the inner component and the outer component is connected to the output end of the drive component, and the other is connected to an external curtain roller. A gap is provided between the inner component and the outer component. When the lower end of the external curtain encounters an obstruction, the inner component and the outer component can rotate relative to each other. At least one of the inner component and the outer component is a silent component. The control module is located at one end of the fixed base and is electrically connected to the drive assembly; The signal detection module is electrically connected to the control module and is used to detect the signal of relative rotation between the internal component and the external component, and to transmit the signal to the control module so that the control module can control the start and stop of the drive component.

2. The tubular motor of claim 1, wherein, One end of the outer component is fixed to the output end of the drive assembly, and the other end of the outer component has a rotating groove. One end of the inner component is used to connect to the external curtain roller tube, and the other end of the inner component has an insertion part. The insertion part is inserted into the rotating groove, and the gap is formed between the insertion part and the rotating groove. The inner component is a silent component.

3. A tubular motor according to claim 2, characterised in that, An inner tube and a second silencing component are sequentially sleeved on the outside of the drive assembly. The inner tube is sleeved on the drive assembly and housed within the second silencing component. The inner wall of the second silencing component abuts against the outer wall of the inner tube. An outer tube is fixedly connected to the fixing seat. The outer tube is sleeved on the outside of the control module, the drive assembly, and the obstacle detection assembly. The outer wall of the second silencing component abuts against the inner wall of the outer tube.

4. The tubular motor according to claim 3, characterized in that, The second sound-absorbing component is sound-absorbing cotton.

5. The tubular motor according to claim 3, characterized in that, The drive assembly includes a mounting base, a motor, and a third noise-reducing component. The mounting base is located at the end of the motor away from the obstruction-detection component and is fixed to the outer tube. The third noise-reducing component is located between the mounting base and the motor.

6. The tubular motor according to claim 5, characterized in that, It also includes an output shaft connected to the end of the obstruction detection component away from the drive component. The output shaft includes a pin portion and a connecting portion. The insertion portion is hollow, and the pin portion is inserted into the insertion portion. The connecting portion is used to connect to the external curtain roller tube.

7. The tubular motor according to claim 6, characterized in that, It also includes a limiting tube, which is sleeved on the output shaft and has a fourth silencing component sleeved on its outside. The mounting base is sleeved with a fifth silencing component, and both the fourth and fifth silencing components abut against the inner wall of the outer tube.

8. The tubular motor according to claim 7, characterized in that, Both the fourth and fifth noise reduction components are O-ring components.

9. The tubular motor according to claim 8, characterized in that, It also includes a first fastener and a second fastener, the first fastener connecting the outer tube and the mounting base, at least one O-ring in the fifth silencing assembly being disposed on the side of the first fastener near the motor, the second fastener connecting the outer tube and the limiting tube, and at least one O-ring in the fourth silencing assembly being disposed on the side of the second fastener near the motor.

10. The tubular motor according to claim 2, characterized in that, The rotating groove is an elliptical groove, the insertion part is cylindrical, and the gap allows the inner component and the outer component to rotate relative to each other at an angle of 15°-20°.

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