A new tubular motor

Abstract

The utility model provides a novel tubular motor, including support body subassembly, drive shaft, circuit board control subassembly, motor assembly, speed reducer, outer tube and roller shutter tube subassembly, support body subassembly, drive shaft, circuit board control subassembly, motor assembly, speed reducer install in outer tube, wherein, the fixed installation of circuit board control subassembly, motor assembly, speed reducer is in outer tube, one end of speed reducer is connected with motor assembly, and the other end is rotatably connected with roller shutter tube subassembly, the roller shutter tube subassembly is installed in outer tube outside, the utility model discloses simple structure, clever design is provided with rebound switch, if the roller shutter meets the barrier, the roller shutter will meet the resistance and rebound, and the roller shutter is not easy to damage, is not easy to pinch hand or pinch people etc, improve the safety performance, increase the selling point of product.

Description

Technical Field

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

[0002] Origin of the name "tubular motor": A tubular motor consists of a stroke section, a motor section, and a reduction section, all of which operate within a circular tube, hence the name. Working principle: The stroke section controls the upper and lower limits of the motor; the motor section is responsible for motor operation; the reduction section typically uses a planetary gear reducer to decrease the motor's speed while increasing the output torque.

[0003] However, existing tubular motor roller blinds do not reverse when they encounter an obstacle after being extended. As a result, the roller blind will continue to extend downwards, which can easily damage the roller blind and trap hands. Further improvements are needed. Utility Model Content

[0004] The problem this invention aims to solve is to provide a tubular motor to overcome the defect in the prior art where the roller blind extends downwards continuously, easily damaging the roller blind.

[0005] To solve the aforementioned technical problem, this utility model provides a novel tubular motor, including a support assembly, a drive shaft, a circuit board control assembly, a motor assembly, a reducer, an outer tube, and a roller shutter tube assembly. The support assembly, drive shaft, circuit board control assembly, motor assembly, and reducer are installed inside the outer tube. The circuit board control assembly, motor assembly, and reducer are fixedly installed inside the outer tube. One end of the reducer is connected to the motor assembly, and the other end is rotatably connected to the roller shutter tube assembly. The roller shutter tube assembly is installed outside the outer tube. One end of the drive shaft is fixed to the support assembly, and the other end is close to a rebound switch within the circuit board control assembly. When the roller shutter tube assembly encounters an obstacle, the circuit board control assembly, motor assembly, reducer, and outer tube simultaneously reverse a certain distance, causing the drive shaft to contact the rebound switch. This allows the circuit board control assembly to control the motor, reducer, and roller shutter tube assembly to reverse.

[0006] Preferably, the circuit board control assembly further includes a drive head, the drive head having a first through hole that mates with the drive shaft, so that the circuit board control assembly has room to rotate.

[0007] Preferably, the circuit board control assembly further includes a circuit board body, a circuit board sleeve, and a connecting sleeve; the circuit board body is fixedly installed inside the circuit board sleeve; one end of the connecting sleeve is fixed to the circuit board sleeve, and the other end is fixed to the drive head; the bounce switch is disposed at one end of the circuit board body; the drive head is also fixed to the outer tube.

[0008] Preferably, the first through hole is fan-shaped.

[0009] Preferably, the drive shaft includes a body and a stop block, the stop block being mounted at one end of the body; the stop block is close to the bounce switch.

[0010] Preferably, one end of the main body is further provided with a planar portion, which mates with the first through hole.

[0011] Preferably, the drive shaft further includes a pin, which is mounted at the other end of the main body and is fitted with the support assembly.

[0012] Preferably, the support assembly includes a bracket, an outer end cap, an inner end cap, and a support body; the bracket and the outer end cap are respectively mounted on the inner end cap; the support body is also mounted together with the inner end cap.

[0013] Preferably, the support body also has a second through hole for the wire.

[0014] Preferably, the roller shutter tube assembly includes a roller shutter tube, a rotating wheel, a crown, an inner sleeve, a tail plug, a bearing, and a connector; the tail plug and the crown are respectively installed at both ends of the roller shutter tube; the rotating wheel is fixed to the output shaft of the reducer; the inner sleeve is rotatably installed on the support assembly; the rotating wheel is disposed inside the roller shutter tube and rotates synchronously with the roller shutter tube; the bearing and the connector are fitted onto the tail plug.

[0015] The beneficial effects are as follows: The novel tubular motor provided by this utility model has a simple structure and ingenious design. It is equipped with a rebound switch. If the roller blind encounters an obstacle, the roller blind will rebound. The roller blind is not easily damaged and is less likely to pinch hands or people, thereby improving safety performance and increasing the product's selling points. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a novel tubular motor according to the present invention; Figure 2 This is an exploded view of a novel tubular motor according to this utility model; Figure 3 An exploded view of the circuit board control components and drive shaft; Figure 4 An exploded view of the support structure components; Figure 5 An exploded view of the support structure components; Figure 6 This is an exploded view of the roller shutter tube assembly; Figure 7 This is an exploded view of the drive shaft; Figure 8 This is a schematic diagram of the drive head structure; Figure 9 This is a schematic diagram of the structure for connecting the sheath; Figure 10 This is a structural diagram of a crown; Figure 11 This is a schematic diagram of the inner sleeve structure; Figure 12 A schematic diagram showing the structure of the drive head and drive shaft in conjunction. Figure 13 This is a schematic diagram of the structure of the impact block, rebound switch, and drive head working together in the normal operating state of the roller shutter. Figure 14 This is a schematic diagram of the normal operation of a roller blind powered by a novel tubular motor according to this utility model. Figure 15 A schematic diagram of the structure of the roller shutter's collision block, rebound switch, and drive head working together after encountering an obstacle; Figure 16 This is a schematic diagram of the structure of a novel tubular motor roller shutter after encountering obstruction, according to this utility model. Figure 17 This is a schematic diagram of the structure of the rebound switch; Figure 18 This is a schematic diagram of the structure of a roller shutter tube.

[0017] Key component symbols: Support assembly 1, bracket 101, outer end cover 102, inner end cover 103, support body 105, second through hole 106, first groove 107, first protrusion 108, drive shaft 2, main body 201, impact block 202, flat part 203, pin 204, circuit board control assembly 3, rebound switch 301, circuit board main body 302, circuit board sleeve 303, connecting sleeve 304, drive head 305, first through hole 306, screw 307, third through hole 308, buckle 309, fourth through hole 3010, slot 3011, motor assembly 4, reducer 5, output shaft 501, outer tube 6, mounting hole 601, roller shutter tube assembly 7, roller shutter tube 701, rotating wheel 702, crown 703, roller shutter 704, second groove 705, inner sleeve 706, counterweight 707, tail plug 708, bearing 709, connector 7010, second protrusion 7011, wire 8, obstacle 9.

[0018] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figures 1 to 18 As shown, this utility model discloses a novel tubular motor, comprising a support assembly 1, a drive shaft 2, a circuit board control assembly 3, a motor assembly 4, a reducer 5, an outer tube 6, and a roller shutter tube assembly 7. The support assembly 1, drive shaft 2, circuit board control assembly 3, motor assembly 4, and reducer 5 are installed inside the outer tube 6. The circuit board control assembly 3, motor assembly 4, and reducer 5 are fixedly installed inside the outer tube 6. One end of the reducer 5 is connected to the motor assembly 4, and the other end is rotatably connected to the roller shutter tube assembly 7. The roller shutter tube assembly 7 is installed outside the outer tube 6; one end of the drive shaft 2 is fixed to the support assembly 1, and the other end is close to the rebound switch 301 in the circuit board control assembly 3; when the roller shutter 704 of the roller shutter tube assembly 7 encounters an obstacle, the circuit board control assembly 3, the motor assembly 4, the reducer 5, and the outer tube 6 will simultaneously reverse a certain distance, causing the drive shaft 2 to contact the rebound switch 301, thereby the circuit board control assembly 3 controls the motor of the motor assembly 4, the reducer 5, and the roller shutter tube assembly 7 to reverse.

[0023] During installation, the other end of the support assembly 1 is fixed to the external bracket, that is, the entire tubular motor is installed on the external bracket; in addition, the support assembly 1 and the reducer 5 are respectively installed at both ends of the outer tube 6. To achieve a slight reversal, the support assembly 1 and the outer tube 6 are fitted with a gap, meaning there is a gap between them to ensure that reversal can be achieved.

[0024] It is worth mentioning that the circuit board control assembly 3 also includes a drive head 305, which has a first through hole 306 that cooperates with the drive shaft 2 to allow the circuit board control assembly 3 to have rotation space; that is, the reverse rotation space of the circuit board control assembly 3, the motor assembly 4, the reducer 5, and the outer tube 6. The first through hole 306 restricts the reverse rotation stroke of the circuit board control assembly 3, the motor assembly 4, the reducer 5, and the outer tube 6.

[0025] Furthermore, the circuit board control assembly 3 also includes a circuit board body 302, a circuit board sleeve 303, and a connecting sleeve 304; the circuit board body 302 is inserted and fixedly installed inside the circuit board sleeve 303; one end of the connecting sleeve 304 is engaged and fixed to the circuit board sleeve 303 by a snap-fit ​​309 and a slot 3011, and the other end is fixed to the drive head 305 with a screw; the rebound switch 301 is disposed at one end of the circuit board body 302.

[0026] Furthermore, the drive head 305 is also fixed to the outer tube 6 by screws. The drive head 305 has a threaded hole 307, and the outer tube 6 has a mounting hole 601 that mates with the threaded hole 307.

[0027] Specifically, the drive shaft 2 passes through the drive head 305, the connecting sleeve 304, and approaches the rebound switch 301.

[0028] Furthermore, the drive head 305 also has a third through hole 308 for wire passage, and the connecting sleeve 304 has a hollow structure, that is, the connecting sleeve 304 has a fourth through hole 3010 in the center.

[0029] To facilitate the rotation of the circuit board control component 3 and to provide a certain limit, the first through hole 306 is fan-shaped.

[0030] In this embodiment, the drive shaft 2 includes a main body 201 and a stop block 202. The stop block 202 is installed at one end of the main body 201 with screws. The stop block 202 is close to the bounce switch 301.

[0031] To facilitate quick and easy contact with the rebound switch 301, the stop block 202 is L-shaped, and the contact portion between the stop block 202 and the rebound switch 301 is arc-shaped, which makes it easy to contact.

[0032] To facilitate insertion into the first through hole 306 and to facilitate rotation of the circuit board control assembly 3, a flat portion 203 is provided on the upper and lower sides of one end of the main body 201, and the flat portion 203 cooperates with the first through hole 306.

[0033] To facilitate the installation of the drive shaft 2 onto the support assembly 1, the drive shaft 2 further includes a pin 204, which is installed at the other end of the main body 201 and cooperates with the support assembly 1 for installation.

[0034] Specifically, the support assembly 1 includes a bracket 101, an outer end cap 102, an inner end cap 103, and a support body 105; the bracket 101 and the outer end cap 102 are respectively mounted on the inner end cap 103 with screws; the support body 105 is also mounted together with the inner end cap 103 with screws.

[0035] Preferably, the support 105 also has a second through hole 106 for passing wires.

[0036] Furthermore, pin 204 is installed on the first groove 107 within the support body 105.

[0037] Specifically, the roller shutter tube assembly 7 includes a roller shutter tube 701, a rotating wheel 702, a crown 703, an inner sleeve 706, a tail plug 708, a bearing 709, and a connector 7010. The tail plug 708 and the crown 703 are fixedly installed at both ends of the roller shutter tube 701 by interlocking grooves (the inner wall of the roller shutter tube 701 is provided with several second protrusions 7011, and the outer walls of the tail plug 708 and the crown 703 are provided with grooves corresponding to the second protrusions 7011). The rotating wheel 702 is fixed to the output shaft 501 of the reducer 5. The inner sleeve 706 is rotatably installed on the support assembly 1. The rotating wheel 702 is disposed inside the roller shutter tube 701 and rotates synchronously with the roller shutter tube 701. The bearing 709 and the connector 7010 are fitted onto the tail plug 708. The other end of the connector 7010 is installed on an external bracket.

[0038] The crown 703 and the inner sleeve 706 are installed by the cooperation of the second groove 705 and the first protrusion 108. Since the inner sleeve 706 and the inner end cover 103 are in clearance fit with the support body 105, the crown 703 and the inner sleeve 706 can rotate synchronously. The roller blind 704 is rolled on the roller blind tube 701.

[0039] The inner sleeve 706 is fitted between the inner end cap 103 and the support body 105, and the inner sleeve 706 is in clearance fit with the inner end cap 103 and the support body 105. The other end of the bracket 101 is fixedly installed with an external bracket.

[0040] When installing the inner sleeve 706, it is first installed together with the support assembly 1.

[0041] The wiring of wire 8 is as follows: it is first installed in the inner end cover 103, and then passes through the second through hole 106, the third through hole 308, and the fourth through hole 3010 before connecting to the circuit board body 302.

[0042] The rebound switch 301 includes a main body 30101, a pressing part 30102, and a switch part 30103. The main body 30101 is mounted on the circuit board main body 302. The pressing part 30102 is elastically connected to the main body 30101. The switch part 30103 is disposed on the main body 30101 and located below the pressing part 30102.

[0043] During installation, the circuit board control assembly 3, motor assembly 4, reducer 5, and outer tube 6 are fixed together, and these components will rotate slightly. The support assembly 1 is fixed together with the drive shaft 2 and then fixedly installed on the external bracket; that is, the support assembly 1 and drive shaft 2 will not move. The roller shutter tube assembly 7 (excluding the inner sleeve 706, which is initially installed with the support assembly 1) is fitted onto the outer tube 6, and the roller shutter tube assembly 7 rotates synchronously with the reducer 5. Additionally, a counterweight 707 is provided below the roller shutter 704.

[0044] The working principle of this utility model's obstacle-rebound mechanism is as follows: Figure 13 and 14 As shown, when the roller shutter 704 extends downwards normally, the stop block 202 and the rebound switch 301 are not in contact: Figure 15 and 16 As shown, if an obstacle 9 is encountered, the roller shutter 704 will be rolled up by the obstacle. At this time, the roller shutter 704 will generate a reaction force. The reaction force generated by the roller shutter 704 will generate a reverse force on the circuit board control component 3, motor component 4, reducer 5, and outer tube 6. That is, the reaction force generated by the roller shutter 704 can drive the circuit board control component 3, motor component 4, reducer 5, and outer tube 6 to rotate slightly in reverse (the direction of the rotation of the circuit board control component 3, motor component 4, reducer 5, and outer tube 6 is opposite to the rotation direction of the reducer 5). Since the drive shaft 2 and the support component 1 do not move (the first through hole 306 restricts the reverse stroke of the circuit board control component 3, motor component 4, reducer 5, and outer tube 6), the impact block 202 of the drive shaft 2 will contact the rebound switch 301 to achieve the obstacle encounter and rebound. After the obstacle encounter and rebound, the roller shutter 704 will be rolled up under the action of the control device in the circuit board control component 3.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A novel tubular motor, characterized in that: The assembly includes a support body assembly (1), a drive shaft (2), a circuit board control assembly (3), a motor assembly (4), a reducer (5), an outer tube (6), and a roller shutter tube assembly (7). The support body assembly (1), drive shaft (2), circuit board control assembly (3), motor assembly (4), and reducer (5) are installed inside the outer tube (6). The circuit board control assembly (3), motor assembly (4), and reducer (5) are fixedly installed inside the outer tube (6). One end of the reducer (5) is connected to the motor assembly (4), and the other end is rotatably connected to the roller shutter tube assembly (7). The roller shutter tube assembly (7) is installed outside the outer tube (6). One end of the drive shaft (2) is fixed to the support body assembly (1), and the other end is close to the rebound switch (301) inside the circuit board control assembly (3). When the roller shutter (704) of the roller shutter tube assembly (7) encounters an obstacle, the circuit board control assembly (3), motor assembly (4), reducer (5), and outer tube (6) will simultaneously reverse a certain distance, causing the drive shaft (2) to contact the rebound switch (301), thereby the circuit board control assembly (3) controls the motor of the motor assembly (4), the reducer (5), and the roller shutter tube assembly (7) to reverse.

2. The novel tubular motor according to claim 1, characterized in that: The circuit board control assembly (3) further includes a drive head (305), which has a first through hole (306) that cooperates with the drive shaft (2) to allow the circuit board control assembly (3) to have rotation space.

3. The novel tubular motor according to claim 2, characterized in that: The circuit board control assembly (3) further includes a circuit board body (302), a circuit board sleeve (303), and a connecting sleeve (304); the circuit board body (302) is fixedly installed inside the circuit board sleeve (303); one end of the connecting sleeve (304) is fixed to the circuit board sleeve (303), and the other end is fixed to the drive head (305); the rebound switch (301) is disposed at one end of the circuit board body (302); the drive head (305) is also fixed to the outer tube (6).

4. The novel tubular motor according to claim 2, characterized in that: The first through hole (306) is fan-shaped.

5. The novel tubular motor according to claim 2, characterized in that: The drive shaft (2) includes a body (201) and a stop block (202), the stop block (202) being mounted on one end of the body (201); the stop block (202) being close to the bounce switch (301).

6. The novel tubular motor according to claim 5, characterized in that: One end of the main body (201) is also provided with a flat part (203), which cooperates with the first through hole (306).

7. The novel tubular motor according to claim 5, characterized in that: The drive shaft (2) also includes a pin (204), which is installed at the other end of the main body (201) and is installed in conjunction with the support assembly (1).

8. The novel tubular motor according to claim 1, characterized in that: The support assembly (1) includes a bracket (101), an outer end cap (102), an inner end cap (103), and a support body (105); the bracket (101) and the outer end cap (102) are respectively mounted on the inner end cap (103); the support body (105) is also mounted together with the inner end cap (103).

9. The novel tubular motor according to claim 8, characterized in that: The support (105) also has a second through hole (106) for passing wires.

10. The novel tubular motor according to any one of claims 1-9, characterized in that: The roller shutter tube assembly (7) includes a roller shutter tube (701), a rotating wheel (702), a crown (703), an inner sleeve (706), a tail plug (708), a bearing (709), and a connector (7010); the tail plug (708) and the crown (703) are respectively installed at both ends of the roller shutter tube (701); the rotating wheel (702) is fixed to the output shaft (501) of the reducer (5); the inner sleeve (706) is rotatably installed on the support assembly (1); the rotating wheel (702) is disposed inside the roller shutter tube (701) and rotates synchronously with the roller shutter tube (701); the bearing (709) and the connector (7010) are fitted together on the tail plug (708).

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