Electric window opener

Abstract

The utility model discloses a kind of electric window opening machines, it is related to window opening machine technical field, solve the problem that window opening machine in prior art does not have self-locking ability under power-off state.The utility model includes motor, the output end of motor and driving gear transmission cooperation;Electromagnetic clutch, the input end and output end of electromagnetic clutch are respectively with driving gear and driven gear transmission cooperation, driven gear is engaged with output gear, realize the transmission of the power output to output gear of motor;Electromagnetic lock, cooperate with output gear, can be used for locking or releasing output gear;Machine body, for carrying motor, driving gear, electromagnetic clutch, driven gear and electromagnetic lock.By setting electromagnetic clutch and electromagnetic lock, the accurate electric control management of action in the process of window opening and closing is realized, can realize when power on by motor positive drive window opening and closing, power-off self-locking ability, ensure the accuracy and reliability of power transmission;Ensure safe use.

Description

Technical Field

[0001] This utility model relates to the field of window opener technology, and in particular to an electric window opener. Background Technology

[0002] In modern architectural design, windows, as a crucial interface connecting the indoor and outdoor environments, are receiving increasing attention for their intelligence, convenience, and safety. While traditional window opener designs meet basic window opening needs to a certain extent, they still face numerous challenges in practical application. In particular, when the window opener is not in operation, the clutch in its internal gear structure is often disengaged, lacking self-locking capability and allowing the window to swing freely in the wind, potentially posing a safety hazard.

[0003] Chinese utility model patent CN221195811U discloses an electromagnetic clutch device, belonging to the field of window opener technology. The key technical features include a main gear, a driven gear, a metal rotor, a first connecting sleeve, and a second connecting sleeve. An armature is fixed inside the main gear, and a rotating shaft is located on the driven gear. The metal rotor is connected to the first connecting sleeve, the first connecting sleeve is connected to the second connecting sleeve, and the second connecting sleeve is connected to the rotating shaft. An electromagnetic coil is installed inside the metal rotor. When the electromagnetic coil is energized, the armature is attracted to the metal rotor; when the electromagnetic coil is de-energized, the metal rotor separates from the armature. This electromagnetic clutch device can change the state of the clutch by controlling the on / off state of the electromagnetic coil, thus switching between electric and manual window operation. It is simple to operate and convenient for users. This utility model also provides a window opener.

[0004] In this design, the clutch is disengaged when the power is off, and the window can swing on its own, thus lacking self-locking capability and having a low safety factor. Utility Model Content

[0005] To address the shortcomings in the aforementioned background technology, this utility model proposes an electric window opener, which solves the problem that existing window openers lack self-locking capability in the event of a power outage.

[0006] The technical solution of this utility model is implemented as follows: an electric window opener includes a motor, the output end of which is driven by a drive gear; an electromagnetic clutch, the input end and output end of which are driven by the drive gear and the driven gear respectively, the driven gear meshing with the output gear to realize the transmission of power output from the motor to the output gear; an electromagnetic lock, which is used to lock or release the output gear; and a body for carrying the motor, drive gear, electromagnetic clutch, driven gear and electromagnetic lock.

[0007] Preferably, the electromagnetic clutch includes a housing fixedly mounted on the machine body, an electromagnet mounted on the housing, the electromagnet cooperating with the iron core housing, and the iron core housing being able to rotate relative to the electromagnet; it also includes an elastic connecting rod rotatably mounted on the machine body, one end of the elastic connecting rod having a large rotatable gear, the iron core housing being able to attract the large gear under the action of the electromagnet, and the other end of the elastic connecting rod engaging with the small gear and the iron core housing.

[0008] Preferably, the iron core housing and the large gear have knurling on their opposing surfaces. The elastic connecting rod includes a tube body with elastic locking parts symmetrically connected to one side of the tube body. A central shaft is provided on the machine body, with one end of the central shaft passing through the tube body and the other end providing support to the inner sides of the two elastic locking parts.

[0009] Preferably, the iron core shell is provided with a connecting ring, which slides in fit with the inner hole of the electromagnet. The connecting ring is provided with a slot, which is inserted into a block provided on the tube body. The outer shell is provided with a through hole to allow the connecting ring to pass through.

[0010] Preferably, the elastic locking part is provided with an end block, and the inner hole sidewall of the pinion is provided with a groove for satisfying the setting of the elastic locking part. The end block is engaged with the outer end face of the pinion, and the inner end face of the pinion abuts against the end face of the connecting ring.

[0011] Preferably, a protective cover is provided on one side of the large gear, and the iron core housing is located inside the protective cover. The electromagnetic lock includes a push-pull electromagnet fixed to the body. The moving iron end of the push-pull electromagnet has a single tooth that can engage with the tooth groove of the output gear to lock or release the output gear. Preferably, the output end of the motor is provided with a worm gear, which meshes with a worm wheel rotatably mounted on the machine body. A transmission gear is fixedly mounted on the worm wheel shaft, and the transmission gear meshes with the driving gear. The outer casing is provided with a lug, which is connected to the machine body by bolts. The electromagnet is bonded and fixedly mounted on the outer casing.

[0012] The beneficial effects of this utility model are as follows: By setting up an electromagnetic clutch and an electromagnetic lock, precise electronic control management of the window's opening and closing process is achieved. It can realize the ability of the motor to drive the window to open and close in the forward direction when the power is on and to self-lock when the power is off, ensuring the accuracy and reliability of power transmission. As a safety locking device, the electromagnetic lock can quickly lock the window position when the window reaches the preset position or receives a locking command, preventing the window from moving unexpectedly, ensuring safety in use, and improving the overall performance of the window opener. Attached Figure Description

[0013] To more clearly illustrate 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.

[0014] Figure 1 This is a schematic diagram of the internal structure of the window opener of this utility model; Figure 2 This is a schematic diagram of the exploded structure of the window opener of this utility model; Figure 3 This is a schematic diagram of the electromagnetic clutch structure of this utility model; Figure 4 This is a schematic diagram of the exploded structure of the electromagnetic clutch of this utility model; Figure 5 This is a schematic diagram of the large gear structure of this utility model; Figure 6 This is a schematic diagram of the electromagnetic lock structure of this utility model; Figure 7 This is a schematic diagram showing the separation state of the single tooth and the tooth groove of the output gear in the electromagnetic lock of this utility model. Figure 8 This is a schematic diagram showing the meshing state between the single tooth of the electromagnetic lock and the tooth groove of the output gear. Figure 9 This is a schematic cross-sectional view of the electromagnetic clutch portion of this utility model.

[0015] In the diagram: 1: Motor, 2: Drive gear, 3: Electromagnetic clutch, 4: Driven gear, 5: Output gear, 6: Electromagnetic lock, 7: Body, 305: Outer shell, 307: Electromagnet, 306: Iron core shell, 301: Large gear, 304: Elastic connecting rod, 302: Small gear, 3041: Tube body, 3042: Elastic locking part, 3043: Central shaft, 3044: Locking block, 3045: End block, 3061: Connecting ring, 3062: Locking groove, 303: Protective cover, 602: Push-pull electromagnet, 601: Single tooth, 11: Worm, 12: Worm gear, 3051: Ear seat. Detailed Implementation

[0016] 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.

[0017] like Figure 1 , 2As shown in Embodiment 1, an electric window opener includes a body 7. A motor 1, a rotatable drive gear 2, a rotatable electromagnetic clutch 3, and a rotatable driven gear 4 are sequentially fixed on the body 7. The output end of the motor 1 is driven by the drive gear 2. The input and output ends of the electromagnetic clutch 3 are respectively driven by the drive gear 2 and the driven gear 4. The driven gear 4 meshes with an output gear 5, transmitting the power output from the motor 1 to the output gear 5. An electromagnetic lock 6 is also fixedly installed on the body 7. The electromagnetic lock 6 cooperates with the output gear 5 and can be used to lock or release the output gear 5.

[0018] Specifically in this embodiment, such as Figure 3 , 4 As shown in Figure 9, the electromagnetic clutch 3 includes a housing 305 fixedly mounted on the body 7. An electromagnet 307 is mounted on the housing 305, and the electromagnet 307 engages with an iron core housing 306, allowing the iron core housing 306 to rotate relative to the electromagnet 307. It also includes an elastic connecting rod 304 rotatably mounted on the body 7. One end of the elastic connecting rod 304 has a rotatable large gear 301. Under the action of the electromagnet 307, the iron core housing 306 can attract the large gear 301. The other end of the elastic connecting rod 304 engages with a small gear 302 and the iron core housing 306, forming a linkage structure. In this embodiment, by designing two gears, one large and one small, at both ends of the electromagnetic clutch, a certain speed ratio is achieved.

[0019] As a further specific embodiment, an ear seat 3051 is provided on the outer shell 305. The ear seat 3051 is connected to the body 7 by bolts. The electromagnet 307 is bonded and fixed on the outer shell 305, thereby using the outer shell to fix and support the electromagnet 307. The structure is compact and easy to install.

[0020] When the electromagnet 307 is energized, the iron core housing 306 becomes magnetic and attracts to the large gear 301 made of magnetic metal material, forming a linkage structure between the large gear 301, the iron core housing 306, and the small gear 302. This allows the large gear 301 and the small gear 302 to rotate synchronously, thus transmitting power. When the power is off, the magnetism of the iron core housing 306 disappears, and the friction between the large gear 301 and the iron core housing 306 is insufficient to maintain synchronous rotation, thus separating and cutting off the power transmission path between the large gear 301 and the small gear 302.

[0021] Example 2: An electric window opener, based on Example 1, includes an elastic connecting rod 304 comprising a tube 3041. Elastic locking portions 3042 are symmetrically connected to one side of the tube 3041, each possessing a certain elastic deformation capability. A central shaft 3043 is provided on the machine body 7. One end of the central shaft 3043 passes through the tube 3041, and the other end provides support to the inner sides of the two elastic locking portions 3042, thus placing them in an outwardly tightened state. In this example, a large gear 301 is rotatably mounted on the outside of the tube 3041. A retaining ring is provided at the end of the tube 3041 to limit the outer side of the large gear 301. The large gear 301 can rotate along the tube and slide a short distance axially.

[0022] In addition, the core housing 306 is provided with a connecting ring 3061, which slides in conjunction with the inner hole of the electromagnet 307. The connecting ring 3061 is provided with a slot 3062, which can be inserted into a locking block 3044 provided on the tube body 3041. In this embodiment, several slots are evenly spaced along the circumference of the end face of the connecting ring, and corresponding locking blocks are evenly spaced along the circumference of the tube body. The insertion of the locking blocks and the slots enables synchronous rotation between the two. The outer shell 305 is provided with a through hole to allow the connecting ring 3061 to pass through, so as to prevent the outer shell from affecting the rotation of the core housing and the pinion.

[0023] As a further specific embodiment, an end block 3045 is provided on the outer wall of the end of the elastic locking part 3042. The inner wall of the pinion 302 and the inner wall of the connecting ring are respectively provided with grooves to accommodate the elastic locking part 3042. During assembly, after the central shaft 3043 passes between the tube and the two elastic locking parts, it can push the two elastic locking parts outwards into the grooves, thereby achieving circumferential limitation through the cooperation between the elastic locking parts and the grooves. The end block 3045 mates with the outer end face of the pinion 302, and the inner end face of the pinion 302 abuts against the end face of the connecting ring 3061, achieving overall axial limitation of the pinion and the connecting ring.

[0024] As a further specific embodiment, the opposing surfaces of the iron core housing 306 and the large gear 301 are provided with knurling, which increases the frictional force when the opposing surfaces are in contact. When the electromagnet 307 is energized, it generates magnetism in the iron core housing 306, attracting it to the large gear. Utilizing the frictional force generated between the knurled surfaces, the large gear and the small gear rotate synchronously, realizing power transmission. When the power is de-energized, they separate, cutting off the power and realizing the clutch function.

[0025] In addition, such as Figure 5 As shown, a ring-shaped protective cover 303 is coaxially fixed on one side of the large gear 301, and the iron core housing 306 is placed inside the protective cover 303, which plays a certain role in protection.

[0026] Example 3: An electric window opener, based on Example 2, such as... Figure 6 , 7 As shown in Figures 8 and 9, the electromagnetic lock 6 includes a push-pull electromagnet 602 fixed to the body 7. The moving iron end of the push-pull electromagnet 602 has a single tooth 601, which can engage with the tooth groove of the output gear 5 to lock or release the output gear 5. In this embodiment, a conventional push-pull electromagnet is used, which generates magnetism when energized to retract the moving iron, causing the single tooth at the moving iron end to separate from the output gear, thereby satisfying the rotation conditions of the output gear. After de-energization, the moving iron extends under the action of its own return spring, causing the single tooth at the moving end to engage with the tooth groove between the two teeth of the output gear, thereby restricting the rotation of the output gear.

[0027] In addition, a worm gear 11 is provided at the output end of the motor 1. The worm gear 11 meshes with a worm wheel 12 rotatably mounted on the machine body 7. A transmission gear is fixedly mounted on the worm wheel shaft of the worm wheel 12. The transmission gear meshes with the drive gear 2 to achieve deceleration and power transmission.

[0028] The control circuits for the electromagnetic clutch 3 and the electromagnetic lock 6 can be integrated into the same control module to achieve unified control and improve system reliability. In the power-off state, the electromagnetic lock 6 automatically locks the output gear 5 to prevent it from rotating freely, thereby preventing the window from opening by external forces such as wind and improving safety.

[0029] As a further optional implementation, the contact surface between the single tooth and the output gear is an inclined plane. Since the elasticity of the return spring of the push-pull electromagnet is limited, the thrust it generates on the single tooth is also limited. Therefore, when the load end, i.e., the window, is subjected to wind, the thrust of the push-pull electromagnet on the single tooth can maintain the locking of the output gear. When manual closing of the window is required, the force transmitted from the load end, i.e., the window, to the output gear is greater, causing the output gear to rotate. With the teeth of the output gear in contact with the inclined plane of the single tooth, it pushes the single tooth and the moving iron backward, preventing excessive load from causing structural damage, while simultaneously achieving the purpose of manually closing the window. Furthermore, after the output gear rotates, since the electromagnet of the electromagnetic clutch is not working, the friction between the large gear and the iron core housing is extremely small. Therefore, rotating the gear can drive the small gear to rotate while preventing the large gear from rotating, achieving the purpose of disengagement.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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. An electric window opener, characterized in that: include Motor (1), the output end of motor (1) is connected to the drive gear (2) for transmission; The electromagnetic clutch (3) has its input and output ends connected to the driving gear (2) and driven gear (4) respectively. The driven gear (4) meshes with the output gear (5) to realize the transmission of power output from the motor (1) to the output gear (5). The electromagnetic lock (6), in conjunction with the output gear (5), can be used to lock or release the output gear (5). The body (7) is used to carry the motor (1), the driving gear (2), the electromagnetic clutch (3), the driven gear (4) and the electromagnetic lock (6).

2. The electric window opener according to claim 1, characterized in that: The electromagnetic clutch (3) includes a housing (305) fixed on the body (7), an electromagnet (307) on the housing (305), the electromagnet (307) cooperating with the iron core housing (306), and the iron core housing (306) being able to rotate relative to the electromagnet (307); it also includes an elastic connecting rod (304) rotatably mounted on the body (7), one end of the elastic connecting rod (304) being provided with a large gear (301) that can rotate, and the iron core housing (306) being able to attract the large gear (301) under the action of the electromagnet (307), and the other end of the elastic connecting rod (304) being engaged with the small gear (302) and the iron core housing (306).

3. The electric window opener according to claim 2, characterized in that: The iron core housing (306) and the large gear (301) have knurling on their opposite surfaces.

4. The electric window opener according to claim 3, characterized in that: The elastic connecting rod (304) includes a tube (3041), and elastic clips (3042) are symmetrically connected on one side of the tube (3041). A central shaft (3043) is provided on the body (7). One end of the central shaft (3043) passes through the tube (3041), and the other end can support the inner side of the two elastic clips (3042).

5. The electric window opener according to claim 4, characterized in that: The iron core housing (306) is provided with a connecting ring (3061), which slides with the inner hole of the electromagnet (307). The connecting ring (3061) is provided with a slot (3062), which engages with a block (3044) on the tube body (3041). The outer shell (305) is provided with a through hole for the connecting ring (3061) to pass through.

6. The electric window opener according to claim 5, characterized in that: The elastic locking part (3042) is provided with an end block (3045), and the inner hole sidewall of the pinion (302) is provided with a groove for satisfying the setting of the elastic locking part (3042). The end block (3045) is engaged with the outer end face of the pinion (302), and the inner end face of the pinion (302) abuts against the end face of the connecting ring (3061).

7. The electric window opener according to any one of claims 2 to 6, characterized in that: A protective cover (303) is provided on one side of the large gear (301), and the iron core housing (306) is located inside the protective cover (303).

8. The electric window opener according to claim 7, characterized in that: The electromagnetic lock (6) includes a push-pull electromagnet (602) fixed on the body (7). The moving iron end of the push-pull electromagnet (602) is provided with a single tooth (601). The single tooth (601) can cooperate with the tooth groove of the output gear (5) to lock or release the output gear (5).

9. The electric window opener according to claim 1 or 8, characterized in that: The output end of the motor (1) is provided with a worm (11), which meshes with a worm wheel (12) rotatably mounted on the machine body (7). A transmission gear is fixedly mounted on the worm wheel shaft of the worm wheel (12), and the transmission gear meshes with the drive gear (2).

10. The electric window opener according to claim 2, characterized in that: The outer shell (305) is provided with an ear seat (3051), which is connected to the body (7) by bolts. The electromagnet (307) is bonded and fixed on the outer shell (305).

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