Waterproof connecting piece of tubular motor and electric curtain

Abstract

The utility model discloses a waterproof connecting piece of a tubular motor and an electric curtain, the waterproof connecting piece is used for arranging an induction part rebounding when encountering resistance, the waterproof connecting piece comprises a wiring groove, the wiring groove is used for being communicated with a cavity of an end cover of the tubular motor so as to enable a wire to enter the wiring groove through the cavity, and the wiring groove is further filled with a waterproof sealing material. The space where the circuit board is located and the external space are sealed through the waterproof sealing material, a good waterproof effect can be achieved, the working stability of the tubular motor under the outdoor working condition is guaranteed, and the service life of the electric curtain is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of tubular motor technology, and in particular to a waterproof connector for a tubular motor and an electric curtain. Background Technology

[0002] Current motorized blinds, such as roller blinds and motorized curtains, typically contain internal components like circuit boards, which are powered by wires introduced through end caps. Currently, there is no effective waterproofing solution for these wires, making the circuit boards susceptible to rain and moisture damage when used outdoors. This can affect the overall stability of the motorized blind and shorten its lifespan. Utility Model Content

[0003] This utility model provides a waterproof connector for a tubular motor and an electric curtain, which solves the problem that existing tubular motors do not have a good waterproof solution for the wire path, which affects the stability of the electric curtain in outdoor working conditions and results in a short service life.

[0004] One embodiment of this utility model provides a waterproof connector for a tubular motor, which is used to set an obstacle detection and rebound sensing component. The waterproof connector includes a wiring groove, which is used to communicate with the cavity of the end cover of the tubular motor so that the wire enters the wiring groove through the cavity. The wiring groove is also filled with a waterproof sealing material.

[0005] Furthermore, the waterproof connector includes a base that mates with the end cap, and a connector body extending inward along the base, with the wiring groove penetrating the base and the connector body.

[0006] Furthermore, the wiring groove is located in the middle of the base and the connector body.

[0007] Furthermore, the connector body includes a mounting head for mounting an obstacle detection and bounce sensing component, and a transition portion connecting the mounting head and the base. One end of the wiring groove is open in the middle of the base, and the other end of the wiring groove is open in the middle of the mounting head.

[0008] Furthermore, the waterproof connector includes a central axis, and the wire is arranged along the central axis.

[0009] Furthermore, the wiring groove is arranged symmetrically with respect to the central axis.

[0010] Furthermore, the mounting head includes a guide block extending inward from the transition portion, the guide block being used to mount the obstacle detection and rebound sensing component.

[0011] Furthermore, the transition section includes a vertical wall, which has an annular groove in the circumferential direction for embedding a waterproof ring.

[0012] Furthermore, the waterproof connector is fixedly connected to the end cap, and the waterproof connector is used to provide a shielding part for the obstacle detection and rebound sensing component.

[0013] Furthermore, the waterproof sealing material includes cured silicone, epoxy resin, stearate, or amide curing agent.

[0014] Furthermore, the outer contour of the cross-section of the base is elliptical.

[0015] Furthermore, the base includes a symmetrically arranged top and bottom, and also includes symmetrically arranged sides. The top of the base includes a first transition surface and a second transition surface connecting the two sides of the first transition surface. The curvature of the first transition surface is greater than that of the second transition surface, and the curvature of the sides is greater than that of the second transition surface.

[0016] Furthermore, the waterproof connector also includes a cable distribution groove, which is connected to the cable routing groove, and the opening of the cable distribution groove is at least partially formed on the periphery of the waterproof connector.

[0017] Furthermore, the opening of the branch groove is at least partially formed on the side wall surface of the connector body.

[0018] Furthermore, the opening of the branch groove is located at the connection between the connector body and the base.

[0019] Another embodiment of this utility model provides an electric curtain, including an end cap of a tubular motor and a waterproof connector of the tubular motor as described in any of the above embodiments, wherein the obstacle detection and rebound sensing component is located on the side of the waterproof connector away from the end cap.

[0020] Another aspect of this utility model embodiment provides an electric curtain, including an end cap of a tubular motor, a waterproof connector for the tubular motor as described in one or more of the above-mentioned embodiments, and an obstacle detection and rebound sensing component. The obstacle detection and rebound sensing component includes a sensing part disposed on a circuit board and a blocking part disposed on the waterproof connector.

[0021] Furthermore, the shielding part includes a ring body disposed on the mounting head, and a shielding body extending from both sides of the ring body. The wire is led out from the middle of the ring body, and a guide groove corresponding to the guide block is formed on the ring body.

[0022] Another aspect of this utility model embodiment provides an electric curtain, including an end cap of a tubular motor, and a waterproof connector for the tubular motor as described in one or more of the above-mentioned embodiments. The end cap is provided with a positioning post, and a positioning groove is formed on the base corresponding to the position of the positioning post. The waterproof connector is fixed to the positioning post of the end cap through the positioning groove.

[0023] This embodiment of the invention places the obstacle detection and rebound sensing component near the circuit board on a waterproof connector. The waterproof connector includes a wiring channel that communicates with the cavity of the tubular motor end cap, allowing wires to pass through the cavity and enter the channel. The wiring channel is filled with a waterproof sealant. This allows the wires to enter the space containing the circuit board through the waterproof connector. The waterproof sealant completely seals the gap between the wires and the wiring channel, effectively sealing the space containing the circuit board from the external space. This provides good waterproofing, ensuring the stability of the tubular motor in outdoor conditions and extending the service life of the electric curtain. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective view of the waterproof connector in the first and fourth embodiments of this utility model, with the waterproof sealing material hidden in the figure;

[0026] Figure 2 This is a perspective view of the waterproof connector assembled with the end cap and the obstacle detection and rebound sensing component in the first and fourth embodiments of this utility model.

[0027] Figure 3 yes Figure 2 Exploded view from the same perspective;

[0028] Figure 4 This is a perspective view of the waterproof connector assembled with the end cap and the obstacle detection and rebound sensing component in the first and fourth embodiments of this utility model.

[0029] Figure 5 yes Figure 4 Exploded view from the same perspective;

[0030] Figure 6 This is a cross-sectional view from the frontal view of the waterproof connector assembled with the tubular motor in the first and fourth embodiments of this utility model. The cross-section is located in a vertical plane and at the central axis of the waterproof connector.

[0031] Figure 7 yes Figure 6 A three-dimensional cross-sectional view, which hides the outer shell and part of the wires passing through the central axis, and the space where the wires are hidden is filled with waterproof sealant.

[0032] Figure 8 These are perspective views of the waterproof connectors in the second and third embodiments of this utility model, with the waterproof sealing material hidden in the figures;

[0033] Figure 9 This is a cross-sectional view from the frontal view of the waterproof connector assembled after the tubular motor in the second and third embodiments of this utility model. The cross-section is located in a vertical plane and at the central axis of the waterproof connector. Detailed Implementation

[0034] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this utility model, unless they actually express the meaning of order according to the context, they should be understood as being used only for differentiation.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] First embodiment:

[0038] Please refer to Figures 1 to 7 As shown, this embodiment provides a waterproof connector 1 for a tubular motor, which is used to set an obstacle detection and rebound sensing component. The waterproof connector 1 includes a wiring groove 11, which is used to communicate with the cavity 21 of the end cover 2 of the tubular motor so that the wire 3 enters the wiring groove 11 through the cavity 21. The wiring groove 11 is also filled with a waterproof sealing material 12.

[0039] As a specific embodiment and not a limitation, the waterproof connector 1 includes a base 13 that mates with the end cap 2, and a connector body extending inwardly along the base 13. The wiring groove 11 passes through the base 13 and the connector body. It should be noted that in some other embodiments, the wiring groove 11 may be eccentrically designed, for example, it may be located on one side of the base 13 and the connector. However, in this embodiment, the wiring groove 11 is located in the middle of the base 13 and the connector body.

[0040] Specifically, the connector body includes a mounting head 14 for mounting an obstacle detection and bounce sensor, and a transition portion 15 connecting the mounting head 14 and the base 13. One end of the wiring channel 11 is open in the middle of the base 13, and the other end of the wiring channel 11 is open in the middle of the mounting head 14. This structure of the wiring channel 11 facilitates the entry of the wire 3 from the middle of the base 11 and exit from the middle of the mounting head 14. As a preferred embodiment, and not a limitation, the waterproof connector 1 of this embodiment includes a central axis, along which the wire 3 is arranged. The wiring channel 11 is symmetrically arranged with respect to the central axis.

[0041] In this embodiment, the wire 3 extends from the end cap 2 through the waterproof connector 1 into the cavity of the circuit board 4 and is connected to the circuit board 4. The end cap 2 and the waterproof connector 1 are fixedly installed. When the motor encounters resistance, the circuit board 4 rotates relative to the end cap 2 and the waterproof connector 1. The wire 3 is arranged along the central axis to minimize the rotational resistance brought by the wire and effectively improve the sensitivity of the tubular motor to rebound when encountering resistance.

[0042] In this embodiment, the base 13, transition portion 15, and mounting head 14 all adopt an axisymmetric structure with a circular cross-sectional shape. It should be noted that in some other embodiments, the base 13, transition portion 15, and mounting head 14 can also be in the shape of a cube, a cubic, a frustum, a cone, a cylinder, a frustum, or any combination of two or more of the above shapes. Equivalent substitutions made based on the concept of this utility model should be included within the protection scope of this utility model.

[0043] As a specific embodiment and not a limitation, the mounting head 14 includes a guide block 141 extending inward from the transition portion 15, the guide block 141 being used to mount the obstacle detection and rebound sensing component. In this embodiment, the guide block 141 is disposed on the outer wall surface of the mounting head 14.

[0044] As a specific embodiment and not a limitation, the transition section 15 includes a vertical wall with an annular groove 151 formed in the circumferential direction. The annular groove 151 is used to embed the waterproof ring 5. In this embodiment, the guide block 141 is disposed on the outer wall surface of the transition section, and there are two annular grooves 151 arranged parallel to each other in the length direction of the transition section. The waterproof ring 5 can be made of rubber.

[0045] In this embodiment, the waterproof connector 1 is fixedly connected to the end cap 2, and the waterproof connector is used to provide a shielding part 61 for the obstacle detection and rebound sensing component 6. Specifically, the shielding part 61 is disposed on the mounting head 14.

[0046] In this embodiment, the waterproof sealing material 12 is cured silicone. It should be noted that in some other embodiments, the waterproof sealing material 12 may also be epoxy resin, stearate ester or amide curing agent.

[0047] This embodiment of the invention places the obstacle detection and rebound sensing component near the circuit board on a waterproof connector. The waterproof connector includes a wiring channel that communicates with the cavity of the tubular motor end cap, allowing wires to pass through the cavity and enter the channel. The wiring channel is filled with a waterproof sealant. This allows the wires to enter the space containing the circuit board through the waterproof connector. The waterproof sealant completely seals the gap between the wires and the wiring channel, effectively sealing the space containing the circuit board from the external space. This provides good waterproofing, ensuring the stability of the tubular motor in outdoor conditions and extending the service life of the electric curtain.

[0048] Second embodiment:

[0049] Please refer to Figure 8 and Figure 9 As shown, this embodiment provides a waterproof connector for a tubular motor. Unlike the first embodiment described above, the outer contour of the base 13' in this embodiment is elliptical.

[0050] Specifically, the base 13' includes a symmetrically arranged top and bottom, and also includes symmetrically arranged sides. The top of the base includes a first transition surface 21' and a second transition surface 22' connecting the two sides of the first transition surface 21'. The curvature of the first transition surface 21' is greater than that of the second transition surface 22', and the curvature of the side is greater than that of the second transition surface 22'.

[0051] This embodiment adopts an approximately elliptical base structure and provides a first transition surface 21' at the bottom and top of the base 13' and a second transition surface 22' connecting the two sides of the first transition surface 21', which can effectively enhance the structural strength of the waterproof connector and make the overall structural stability of the assembled tubular motor better.

[0052] As a preferred option rather than a limitation, unlike the first embodiment described above, the waterproof connector in this embodiment further includes a cable distribution groove 111', which communicates with the cable routing groove 11', and the opening of the cable distribution groove 111' is at least partially formed on the periphery of the waterproof connector.

[0053] Specifically, the opening of the branch groove 111' is at least partially formed on the side wall of the connector body. Further, the opening of the branch groove 111' is formed at the connection between the connector body and the base 13'. As a preferred embodiment, and not a limitation, the opening at the connection of the branch groove 111' includes a transverse opening 111a' penetrating the base 13' and a longitudinal opening 111b' penetrating the connector body. Waterproof sealing material 12' is disposed inside the longitudinal opening to facilitate the laying of the wire branch 31'. Since the wire branch 31' can extend outward directly through the branch groove from the middle of the connector body, and the wire branch 31' is located inside the base, it avoids the wiring outside the base 13' in the first embodiment. This eliminates the need for the limiting protrusion 23 of the end cap 2' to provide clearance for the wire branch 31', allowing for the arrangement of more obstacle-detecting and rebounding structures to enhance the rebound force and improve the overall obstacle-detecting and rebounding effect of the tubular motor.

[0054] Third embodiment:

[0055] This utility model embodiment provides an electric curtain, including an end cap of a tubular motor, and a waterproof connector of the tubular motor as described in the first or second embodiment above, wherein the obstacle detection and rebound sensing component is located on the side of the waterproof connector away from the end cap.

[0056] This embodiment of the invention places the obstacle detection and rebound sensing component near the circuit board on a waterproof connector. The waterproof connector includes a wiring channel that communicates with the cavity of the tubular motor end cap, allowing wires to pass through the cavity and enter the channel. The wiring channel is filled with a waterproof sealant. This allows the wires to enter the space containing the circuit board through the waterproof connector. The waterproof sealant completely seals the gap between the wires and the wiring channel, effectively sealing the space containing the circuit board from the external space. This provides good waterproofing, ensuring the stability of the tubular motor in outdoor conditions and extending the service life of the electric curtain.

[0057] Fourth embodiment:

[0058] Please refer to Figures 1 to 7 As shown, this utility model embodiment also provides an electric curtain, including an end cap 2 of a tubular motor, a waterproof connector 1 of the tubular motor described in the first or second embodiment, and an obstacle detection and rebound sensing component 6. The obstacle detection and rebound sensing component 6 includes a sensing part 62 disposed on a circuit board 4 and a blocking part 61 disposed on the waterproof connector 1.

[0059] In this embodiment, the sensing unit 62 includes symmetrically arranged "U"-shaped sensing heads on the circuit board. The blocking unit 61 includes a ring 611 disposed on the mounting head 14 and blocking bodies 612 extending from the ring 611 to both sides. The blocking body 612 on one side corresponds to the position of the "U"-shaped sensing head on one side, and the blocking body 612 on the other side corresponds to the position of the "U"-shaped sensing head on the other side. When the circuit board 4 and the waterproof connector 1 rotate relative to each other, one of the blocking bodies 612 inserts into the "U"-shaped sensing head, thereby changing the electrical signal of the circuit board 4, thereby determining that the tubular circuit board is resisted, and subsequently performing a resistance bounce action. The resistance bounce sensing component 6 in this embodiment includes, but is not limited to, Hall effect sensing modules or laser modules.

[0060] As a specific solution rather than a limitation, the ring body 611 is provided with a guide groove 611a corresponding to the guide block 141. The cooperation between the guide groove 611a and the guide block 141 can enable the quick assembly and disassembly of the shielding part 61 relative to the mounting head 14, thereby improving production assembly efficiency.

[0061] As a preferred option rather than a limitation, in this embodiment, after the wire passes through the mounting head 14, it is led out from the opening in the middle of the ring 611 of the shielding part 61, so as to further reduce the rotational resistance brought by the wire and effectively improve the sensitivity of the tubular motor to resistance rebound.

[0062] As a specific solution rather than a limitation, the end cap 2 is provided with a positioning post 22, and the base 13 is provided with a positioning groove 131 corresponding to the position of the positioning post 22. The waterproof connector 1 is fixed to the positioning post 22 of the end cap 2 through the positioning groove 131.

[0063] In this embodiment, an arc-shaped reinforcing rib 132 is also formed on the outer side of the base 13, and an avoidance portion 132a is also formed at the junction of the base 13 and the end cap 2. As a specific solution and not a limitation, a locking block 152 is also symmetrically arranged at the junction of the transition portion 15 and the base 13. The locking block 152 is used to set a gasket so that the assembly of the waterproof connector 1 and the end cap 2 can be completed by screws.

[0064] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof connector for a tubular motor, characterized in that, The waterproof connector includes a wiring channel for setting up an obstacle detection and rebound sensing component. The wiring channel is used to communicate with the cavity of the tubular motor end cap so that the wires can enter the wiring channel through the cavity. The wiring channel is also filled with a waterproof sealing material.

2. The waterproof connector for the tubular motor as described in claim 1, characterized in that, The waterproof connector includes a base that mates with the end cap, and a connector body extending inward along the base, with the wiring groove penetrating the base and the connector body.

3. The waterproof connector for the tubular motor as described in claim 2, characterized in that, The wiring groove is located in the middle of the base and the connector body.

4. The waterproof connector for the tubular motor as described in claim 3, characterized in that, The connector body includes a mounting head for mounting an obstacle detection and bounce sensing component, and a transition portion connecting the mounting head and the base. One end of the wiring groove is open in the middle of the base, and the other end of the wiring groove is open in the middle of the mounting head.

5. The waterproof connector for the tubular motor as described in claim 4, characterized in that, The waterproof connector includes a central axis, and the wires are arranged along the central axis.

6. The waterproof connector for the tubular motor as described in claim 5, characterized in that, The wiring groove is arranged symmetrically with respect to the central axis.

7. The waterproof connector for the tubular motor as described in any one of claims 4 to 6, characterized in that, The mounting head includes a guide block extending inward from the transition portion, the guide block being used to mount the obstacle detection and rebound sensing component.

8. The waterproof connector for the tubular motor as described in claim 7, characterized in that, The transition section includes a vertical wall with an annular groove in the circumferential direction for embedding a waterproof ring.

9. The waterproof connector for the tubular motor as described in any one of claims 1 to 3, characterized in that, The waterproof connector is fixedly connected to the end cap, and the waterproof connector is used to provide a shielding part for the obstacle detection and rebound sensing component.

10. The waterproof connector for the tubular motor as described in claim 9, characterized in that, The waterproof sealing material includes cured silicone, epoxy resin, stearate, or amide curing agent.

11. The waterproof connector for the tubular motor as described in any one of claims 2 to 6, characterized in that, The outer contour of the cross-section of the base is elliptical.

12. The waterproof connector for a tubular motor as described in any one of claims 2 to 6, characterized in that, The base includes a symmetrically arranged top and bottom, and symmetrically arranged sides. The top of the base includes a first transition surface and a second transition surface connecting the two sides of the first transition surface. The curvature of the first transition surface is greater than that of the second transition surface, and the curvature of the sides is greater than that of the second transition surface.

13. The waterproof connector for the tubular motor as described in any one of claims 2 to 6, characterized in that, The waterproof connector also includes a cable tray, which is connected to the cable routing tray, and the opening of the cable tray is at least partially located on the periphery of the waterproof connector.

14. The waterproof connector for the tubular motor as described in claim 13, characterized in that, The opening of the branch groove is at least partially formed on the side wall surface of the connector body.

15. The waterproof connector for the tubular motor as described in claim 14, characterized in that, The opening of the branch groove is located at the connection between the connector body and the base.

16. An electric curtain, comprising an end cap of a tubular motor, characterized in that, The waterproof connector for the tubular motor according to any one of claims 1 to 15, wherein the obstacle detection and rebound sensing component is located on the side of the waterproof connector away from the end cap.

17. An electric curtain, comprising an end cap of a tubular motor, characterized in that, The waterproof connector for the tubular motor as described in claim 7 further includes an obstacle detection and rebound sensing component, wherein the obstacle detection and rebound sensing component includes a sensing part disposed on a circuit board and a shielding part disposed on the waterproof connector.

18. The electric curtain as described in claim 17, characterized in that, The shielding part includes a ring body disposed on the mounting head, and a shielding body extending from both sides of the ring body. The wire is led out from the middle of the ring body, and a guide groove corresponding to the guide block is formed on the ring body.

19. An electric curtain, comprising an end cap of a tubular motor, characterized in that, The waterproof connector for the tubular motor as described in any one of claims 2 to 8 is provided on the end cap, and a positioning groove is formed on the base corresponding to the position of the positioning post. The waterproof connector is fixed to the positioning post of the end cap through the positioning groove.

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