Dual-motor driving device for electric curtain

Abstract

The utility model relates to a dual-motor driving device for an electric curtain, which comprises a shell, two motor components which are coaxially and symmetrically arranged are arranged in the shell, the output ends of the two motor components respectively face opposite directions, the two motor components are connected through a connecting piece, the output ends of the two motor components are both connected with damping sleeves, and the damping sleeves are connected with the connecting piece. The two sets of symmetrical motor assemblies are connected into a whole through the connecting piece, the output ends of the two sets of motor assemblies are connected with the damping sleeve, the outer diameter of the damping sleeve is larger than the outer diameter of the motor assemblies, and the motor assemblies and the connecting piece are not in contact with the inner wall of the shell. The motor assembly and the connecting piece are arranged in the shell in a suspended mode, so that vibration generated by working of the motor assembly can be filtered by the damping sleeve, and the effects of vibration reduction and noise reduction are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric curtain driving devices, in particular to a dual-motor driving device for electric curtains. Background Art

[0002] With the continuous development of smart homes, electric curtains are used more and more widely. The reason why electric curtains can be operated electrically is that they are equipped with drive devices. The drive devices of electric curtains generally include single-motor single-output drive devices, single-motor dual-output drive devices, and dual-motor dual-output drive devices. As we all know, the operation of the motor will generate vibration and thus generate noise. Excessive noise will affect the work and life of users and reduce product satisfaction. Therefore, how to reduce vibration and noise of the drive device is a problem that needs to be solved urgently. Utility Model Content

[0003] In view of the current status of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a dual-motor driving device for electric curtains that can reduce vibration and noise.

[0004] The technical solution adopted by the utility model to solve the above technical problems is: a dual-motor driving device for electric curtains, including a shell, two coaxially symmetrically arranged motor components are arranged in the shell, the output ends of the two motor components are respectively facing in opposite directions, the two motor components are connected by a connecting piece, the output ends of the two motor components are both connected to a shock-absorbing sleeve, the outer diameter of the shock-absorbing sleeve is larger than the outer diameter of the motor component, and the motor component and the connecting piece do not contact the inner wall of the shell.

[0005] Furthermore, the motor assembly includes a motor core and a reducer, the output shaft of the motor core is transmission-connected to the reducer, and the motor core is fixedly connected to the reducer.

[0006] Furthermore, mounting positions for mounting the motor assembly are provided at both ends of the connecting member, and the two ends of the connecting member are respectively fixedly connected to the reducer in the corresponding motor assembly.

[0007] Furthermore, a control board is provided in the connecting member, and a Hall plate is provided at one end of the motor movement relative to the output shaft, and the Hall plate is electrically connected to the control board.

[0008] Furthermore, end covers are provided at both ends of the shell, and the end covers are respectively inserted into the circumferential inner side of the end of the shell, and the shock-absorbing sleeve is embedded in the end cover. The upper surface, lower surface, two side surfaces and front end surface of the shock-absorbing sleeve are partially in contact with the inner wall of the end cover, and the end cover is provided with a through hole for the output end to transmit power.

[0009] Furthermore, the shock-absorbing sleeve is provided with a through hole for the output end to transmit power, and the through hole and the through hole are coaxially arranged with the output end.

[0010] Furthermore, a retaining frame is embedded in the shock-absorbing sleeve, and the retaining frame is sleeved on the circumferential outer side of the output end.

[0011] Furthermore, at least one convex rib is protruded on the outer surface of the retaining frame.

[0012] Furthermore, a bending rib is provided at the end of the at least one convex rib, and an embedding groove matching the shape of the retaining frame is provided in the shock-absorbing sleeve.

[0013] Furthermore, the shock-absorbing sleeve is made of a flexible material.

[0014] Compared with the prior art, the advantages of the present invention are: the present invention connects two groups of symmetrical motor components into one through a connecting piece, and connects shock-absorbing sleeves at the output ends of the two groups of motor components. The outer diameter of the shock-absorbing sleeve is designed to be larger than the outer diameter of the motor component, and the motor component and the connecting piece are suspended in the outer casing, so that the vibration generated by the operation of the motor component can be filtered by the shock-absorbing sleeve, thereby playing a role in reducing vibration and noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is an exploded view of the utility model;

[0019] Figure 3 It is an axial cross-sectional view of the utility model;

[0020] Figure 4 It is a radial cross-sectional view of the end of the utility model;

[0021] Figure 5It is a structural schematic diagram of the connecting piece of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the cage of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the shock-absorbing sleeve of the utility model;

[0024] As shown in the figure, 1 is a housing, 2 is a motor assembly, 2.1 is an output end, 2.2 is a motor movement, 2.3 is a reducer, 3 is a connector, 3.1 is a mounting position, 4 is a shock-absorbing sleeve, 4.1 is a perforation, 4.2 is an embedding groove, 5 is a control board, 6 is a Hall plate, 7 is an end cover, 7.1 is a through hole, 8 is a retaining frame, 8.1 is a convex rib, and 8.2 is a bending rib. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with specific implementation methods.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, which indicate orientations or positional relationships, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] like Figure 1-7 As shown, the utility model provides a dual-motor driving device for electric curtains, including a shell 1, in which two coaxially symmetrically arranged motor assemblies 2 are arranged, and the output ends 2.1 of the two motor assemblies 2 are respectively oriented in opposite directions. The two motor assemblies 2 can work simultaneously or separately. The two motor assemblies 2 are connected by a connecting piece 3, and the output ends 2.1 of the two motor assemblies 2 are both connected to a shock-absorbing sleeve 4, the outer diameter of the shock-absorbing sleeve 4 is larger than the outer diameter of the motor assembly 2, and the motor assembly 2 and the connecting piece 3 do not contact the inner wall of the shell 1.

[0031] The utility model connects two symmetrical motor assemblies 2 into one through a connector 3, and connects shock-absorbing sleeves 4 at the output ends 2.1 of the two motor assemblies 2. The outer diameter of the shock-absorbing sleeve 4 is designed to be larger than the outer diameter of the motor assembly 2, and the motor assembly 2 and the connector 3 are suspended in the housing 1, so that the vibration generated by the operation of the motor assembly 2 can be filtered by the shock-absorbing sleeve 4, thereby playing a role in vibration reduction and noise reduction. The suspension means that the shock-absorbing sleeves 4 at both ends hold up the motor assembly 2 and the connector 3 as a whole, so that the motor assembly 2 and the connector 3 are not in contact with the housing 1.

[0032] Among them, the motor assembly 2 includes a motor movement 2.2 and a reducer 2.3. The output shaft of the motor movement 2.2 is connected to the reducer 2.3. The motor movement 2.2 is fixedly connected to the reducer 2.3. The motor movement 2.2 outputs power, and the reducer 2.3 plays a role of deceleration, making the power transfer more stable. The two sets of corresponding motor movements 2.2 and reducers 2.3 can work and output power at the same time, or one set can work to output power and the other set can be on standby, which is flexible to use.

[0033] Among them, see Figure 2 , 5Both ends of the connecting member 3 are provided with mounting positions 3.1 for mounting the motor assembly 2. Both ends of the connecting member 3 are respectively fixedly connected to the reducer 2.3 in the corresponding motor assembly 2. The fixed connection can be screwed or snapped to ensure that the motor assembly 2 and the connecting member 3 are fixed as a whole and the structure is stable. The connecting member 3 can be cylindrical or bracket-shaped. The bracket-shaped means that its upper half is an open structure.

[0034] Among them, see Figure 3 , 4 A control board 5 is provided in the connecting member 3, and a Hall plate 6 is provided at one end of the motor movement 2.2 relative to the output shaft. The Hall plate 6 is electrically connected to the control board 5, and the control board 5 controls the operation of the motor assembly 2.

[0035] Among them, see Figure 2 , 3 , 4, end covers 7 are provided at both ends of the shell 1, and the end covers 7 are respectively inserted into the circumferential inner side of the end of the shell 1, and the shock-absorbing sleeve 4 is embedded in the end cover 7. The upper surface, lower surface, two side surfaces and front end surface of the shock-absorbing sleeve 4 are partially in contact with the inner wall of the end cover 7, ensuring that the output end 2.1 of the motor assembly 2 is not in direct contact with the end cover 7 and the shell 1, thereby playing a role in vibration reduction and noise reduction, and the end cover 7 can protect the shock-absorbing sleeve 4 from deformation and play a protective role. In addition, the end covers 7 at both ends play both an aesthetic role and an axial limit role. A through hole 7.1 is opened on the end cover 7 for the output end 2.1 to transmit power, and a through hole 4.1 is provided on the shock-absorbing sleeve 4 for the output end 2.1 to transmit power. The through hole 4.1 and the through hole 7.1 are coaxially arranged with the output end 2.1.

[0036] Among them, see Figure 2 , 3 4. The shock-absorbing sleeve 4 is embedded with a retaining frame 8, and the retaining frame 8 is sleeved on the circumferential outside of the output end 2.1. The setting of the retaining frame 8 can play an internal supporting role for the shock-absorbing sleeve 4 to prevent the shock-absorbing sleeve 4 from deformation. The retaining frame 8 is made of hard material and can play a skeleton supporting role for the shock-absorbing sleeve 4. Because the softer the material of the shock-absorbing sleeve 4, the better the shock-absorbing effect, but it is also more likely to twist and deform, and it is difficult to resist the output torque of the motor assembly 2. The embedded support of the retaining frame 8 can help the shock-absorbing sleeve 4 to better disperse the torque and avoid deformation, and also allows the shock-absorbing sleeve 4 to use a softer material, better filter vibration, and have a better noise reduction effect.

[0037] Among them, see Figure 6 At least one convex rib 8.1 is convexly provided on the outer surface of the retaining frame 8. The setting of the convex rib 8.1 can better support the shock-absorbing sleeve 4 from deformation, further disperse the output torque, and make the shock-absorbing sleeve 4 more evenly stressed.

[0038] Among them, see Figure 6 , 7 The end of at least one convex rib 8.1 is provided with a bending rib 8.2, and the angle between the bending rib 8.2 and the convex rib 8.1 is greater than 0 degrees and less than 180 degrees, which can more fully support the shock-absorbing sleeve 4, better protect the shock-absorbing sleeve 4 from deformation, and extend the service life. The shock-absorbing sleeve 4 is provided with an embedding groove 4.2 that matches the shape of the retaining frame 8. The embedding groove 4.2 does not penetrate the front end surface of the shock-absorbing sleeve 4, ensuring that the retaining frame 8 is embedded in the shock-absorbing sleeve 4 without contacting the end cover 7 to avoid vibration transmission.

[0039] The shock-absorbing sleeve 4 is made of a flexible material, such as a rubber shock-absorbing sleeve, a silicone shock-absorbing sleeve, etc., which can effectively filter the vibration generated by the motor assembly 2 and reduce noise.

[0040] Unless otherwise specified, the materials, reagents and experimental equipment involved in the embodiments of the present invention are all commercially available products in the field of electric curtain driving devices.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A dual-motor driving device for electric curtains, characterized in that: It includes a shell, in which two coaxially symmetrically arranged motor assemblies are arranged, the output ends of the two motor assemblies are respectively facing in opposite directions, the two motor assemblies are connected by a connecting piece, the output ends of the two motor assemblies are both connected to a shock-absorbing sleeve, the outer diameter of the shock-absorbing sleeve is larger than the outer diameter of the motor assembly, and the motor assembly and the connecting piece do not contact the inner wall of the shell.

2. A dual-motor driving device for electric curtains according to claim 1, characterized in that: The motor assembly comprises a motor core and a reducer, the output shaft of the motor core is drivingly connected to the reducer, and the motor core is fixedly connected to the reducer.

3. A dual-motor driving device for electric curtains according to claim 2, characterized in that: Both ends of the connecting member are provided with mounting positions for mounting the motor assembly, and the two ends of the connecting member are respectively fixedly connected to the reducer in the corresponding motor assembly.

4. A dual-motor driving device for electric curtains according to claim 2, characterized in that: A control board is arranged in the connecting member, and a Hall plate is arranged at one end of the motor movement relative to the output shaft, and the Hall plate is electrically connected to the control board.

5. The dual-motor driving device for electric curtains according to claim 1, characterized in that: End covers are provided at both ends of the shell, and the end covers are respectively inserted into the circumferential inner side of the end of the shell, and the shock-absorbing sleeve is embedded in the end cover. The upper surface, lower surface, two side surfaces and front end surface of the shock-absorbing sleeve are partially in contact with the inner wall of the end cover, and the end cover is provided with a through hole for the output end to transmit power.

6. A dual-motor driving device for electric curtains according to claim 5, characterized in that: The shock-absorbing sleeve is provided with a through hole for the output end to transmit power, and the through hole and the through hole are coaxially arranged with the output end.

7. A dual-motor driving device for electric curtains according to claim 1, characterized in that: A retaining frame is embedded in the shock-absorbing sleeve, and the retaining frame is sleeved on the circumferential outer side of the output end.

8. A dual-motor driving device for electric curtains according to claim 7, characterized in that: At least one rib is convexly disposed on the outer surface of the retaining frame.

9. A dual-motor driving device for electric curtains according to claim 8, characterized in that: The end of the at least one convex rib is provided with a bending rib, and the shock-absorbing sleeve is provided with an embedding groove matching the shape of the retaining frame.

10. A dual-motor driving device for electric curtains according to claim 1, characterized in that: The shock-absorbing sleeve is made of flexible material.

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