A silent domestic actuator

Abstract

The utility model relates to actuator technical field especially relates to a mute type household actuator, including left noise reduction casing, one side of left noise reduction casing is provided with detachable right noise reduction casing, and the electric actuator is arranged between left noise reduction casing and right noise reduction casing inner chamber, still including rubber frame, and the rubber frame that can slide along the vertical symmetry is arranged in left noise reduction casing and right noise reduction casing inner chamber upper and lower two sides, and the electric actuator is arranged in the space formed between upper and lower two sides rubber frame, and the space is compatible with the electric actuator external dimension, and the inner wall in left noise reduction casing and right noise reduction casing inner chamber is all laid with the noise reduction layer, and the utility model relates to a mute type household actuator in the use process, and vibration energy is transmitted to the rubber frame, and the rubber frame is driven to realize vertical sliding by vibration, and the damping mechanism is driven simultaneously to produce friction displacement, and vibration energy is absorbed, and the mute performance of household actuator is improved through the combination of the compound type damping structure and multistage noise reduction design.

Description

Technical Field

[0001] This utility model relates to the field of actuator technology, and in particular to a silent household actuator. Background Technology

[0002] Silent household electric actuators are devices that efficiently convert electrical energy into precise mechanical motion. Their core design revolves around "low noise" and "adaptability to home scenarios." As a core component of smart home systems, silent electric actuators can be integrated into devices such as doors, windows, curtains, and air conditioning vents.

[0003] When the actuator is in use, existing household electric actuators typically employ a single vibration damping structure. Their vibration damping and noise reduction mechanism can only absorb vibration energy through a single path, causing low- and mid-frequency vibrations to be directly transmitted to the housing and trigger resonance. In addition, the housing connection of traditional devices often relies on bolt fixation, which can easily loosen due to vibration after long-term use, generating additional noise. Furthermore, the presence of assembly gaps can exacerbate abnormal operating noises. Moreover, existing noise reduction measures mostly use single-layer sound-absorbing materials, which have limited absorption rates for mid- and high-frequency noise, making it difficult to meet the noise control requirements below low decibel levels in quiet scenarios (such as bedrooms and studies).

[0004] Therefore, to address the issue of the inconvenience in improving the noise performance of household electric actuators when used in scenarios requiring quiet operation, a quiet household actuator can be designed. When using this electric actuator, during installation, first insert one side of the actuator into the inner cavity of the left noise-reducing housing, ensuring its upper and lower end faces are tightly fitted against the inner walls of the rubber frames at the top and bottom of the cavity. Then, pull up the locking mechanism. Next, align the open side of the right noise-reducing housing with the left noise-reducing housing, inserting the other side of the actuator into the inner cavity of the right noise-reducing housing and fitting it against the rubber frame. Finally, release the locking mechanism. The structure completes the vertical locking of the two side shells. When the electric actuator is running, the vibration energy is first transmitted to the rubber frame. The rubber frame is driven by the vibration to slide vertically, which simultaneously drives the shock absorption mechanism to generate frictional displacement and absorb the vibration energy. At the same time, the noise reduction layer laid on the inner wall of the left and right noise reduction shells uses porous sound-absorbing material. Through the internal microporous structure, the sound wave energy is converted into heat energy and consumed, thus achieving noise reduction. In summary, this technical solution significantly improves the quiet performance of household actuators by combining a composite shock absorption structure with a multi-stage noise reduction design. Utility Model Content

[0005] To overcome the problem that existing household electric actuators typically use a single shock-absorbing structure, which causes low- and medium-frequency vibrations to be directly transmitted to the housing and cause resonance, it is inconvenient to improve the noise performance of household electric actuators when used in scenarios where quiet operation is required.

[0006] The technical solution of this utility model is as follows: a silent household actuator, including a left noise-reducing shell, a detachable right noise-reducing shell on one side of the left noise-reducing shell, an electric actuator disposed between the inner cavities of the left and right noise-reducing shells, and a rubber frame. The upper and lower sides of the inner cavities of the left and right noise-reducing shells are symmetrically provided with rubber frames that can slide vertically. The electric actuator is disposed in the space formed between the upper and lower rubber frames, and the space is adapted to the outer dimensions of the electric actuator. The inner walls of the inner cavities of the left and right noise-reducing shells are covered with a noise-reducing layer.

[0007] Preferably, when using this electric actuator, during installation, first insert one side of the electric actuator into the inner cavity of the left noise-reducing housing, ensuring its upper and lower end faces are tightly fitted against the inner walls of the rubber frames at the top and bottom of the cavity. Then, pull up the locking mechanism. Next, align the open side of the right noise-reducing housing with the left noise-reducing housing, allowing the other side of the electric actuator to be inserted into the inner cavity of the right noise-reducing housing and fitted against the rubber frame. Then, release the locking mechanism to complete the vertical locking of both housings. When the electric actuator is running, the vibration energy is first transmitted to the rubber frame, which is driven by the vibration to slide vertically, simultaneously driving the shock-absorbing mechanism to generate frictional displacement and absorb vibration energy. At the same time, the noise-reducing layers laid on the inner walls of the left and right noise-reducing housings are made of porous sound-absorbing material, which converts sound wave energy into heat energy through the internal microporous structure, thus achieving noise reduction. In summary, this technical solution significantly improves the quiet performance of household actuators through the combination of a composite shock-absorbing structure and a multi-stage noise reduction design.

[0008] Preferably, multiple sets of fixing blocks are symmetrically fixed on the left and right sides of the inner cavity of the left and right noise reduction housings. Each set of two fixing blocks is arranged symmetrically from top to bottom. A guide rod is fixed between each set of fixing blocks, and a damping block that can slide vertically is sleeved on the side wall of the guide rod.

[0009] Preferably, a damping spring is fixedly installed on the inner end face of the damping block, one end of the damping spring is fixedly connected to the inner end face of the corresponding fixed block, and the inner walls of the two damping blocks are fixedly connected to the outer walls of the two sides of the rubber frame respectively.

[0010] Preferably, rubber pads are symmetrically fixed on the upper and lower sides of the inner cavity of the left and right noise reduction housings, and multiple sets of rubber balls are arranged between the rubber pads and the rubber frame, with the rubber balls fixed on the upper surface of the rubber pads.

[0011] Preferably, a guide cylinder is fixedly installed on the outer wall of one side of the right noise reduction housing, and a lifting rod that can slide vertically is installed inside the guide cylinder. Locking rods are fixedly installed on the side wall and bottom of the lifting rod, respectively.

[0012] Preferably, two sets of locking blocks are fixedly installed on the outer wall of one side of the left noise reduction housing. The locking blocks have through locking holes, and the locking rod is adapted to engage with the locking holes. A locking spring is fixedly installed at the bottom of the guide cylinder, and the lower end of the locking spring is fixedly connected to the upper end of the bottom locking rod.

[0013] Preferably, two sets of snap-fit ​​blocks are fixedly installed on the outer wall of the left noise-reducing housing on the other side, and two sets of snap-fit ​​buckles are fixedly installed on the outer wall of the right noise-reducing housing on the other side, with the snap-fit ​​blocks and snap-fit ​​buckles fitting and engaging with each other.

[0014] The beneficial effects of this utility model are: When using this electric actuator, during installation, first insert one side of the electric actuator into the inner cavity of the left noise-reducing housing, ensuring its upper and lower end faces are tightly fitted against the inner walls of the rubber frames at the top and bottom of the cavity. Then, pull up the locking mechanism. Next, align the open side of the right noise-reducing housing with the left noise-reducing housing, allowing the other side of the electric actuator to be inserted into the inner cavity of the right noise-reducing housing and fitted against the rubber frame. Then, release the locking mechanism to complete the vertical locking of both housings. When the electric actuator is running, the vibration energy is first transmitted to the rubber frame, which is driven by the vibration to slide vertically. Simultaneously, this drives the damping mechanism to generate frictional displacement and absorb vibration energy. At the same time, the noise-reducing layers laid on the inner walls of the left and right noise-reducing housings use porous sound-absorbing material, which converts sound wave energy into heat energy through the internal microporous structure, thus achieving noise reduction. In summary, this technical solution significantly improves the quiet performance of household actuators through the combination of a composite damping structure and a multi-stage noise reduction design. Attached Figure Description

[0015] Figure 1 The diagram shown is a first three-dimensional structural schematic of a silent household actuator according to this utility model; Figure 2 The diagram shown is a three-dimensional front view of the left and right noise-reducing housings and the electric actuator of a silent household actuator according to this utility model. Figure 3 The diagram shows a three-dimensional view of the left and right noise-reducing housings and the electric actuator of a silent household actuator according to this utility model, separated from their front and back views. Figure 4 The diagram shown is a partial three-dimensional structural schematic of a silent household actuator according to this utility model. Figure 5 The diagram shows a three-dimensional view of the internal structure of the left and right noise-reducing housings of a silent household actuator according to this utility model. Figure 6 The diagram shown is a three-dimensional structural diagram of the outer rubber frame of a silent household actuator according to this utility model; Explanation of reference numerals in the attached diagram: 1. Left noise-reducing housing; 2. Right noise-reducing housing; 3. Electric actuator; 4. Rubber frame; 5. Fixing block; 6. Guide rod; 7. Damping block; 8. Damping spring; 9. Rubber pad; 10. Rubber ball; 11. Guide cylinder; 12. Lifting rod; 13. Locking rod; 14. Locking block; 15. Locking hole; 16. Locking spring; 17. Snap-fit ​​block; 18. Snap-fit ​​buckle. Detailed Implementation

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

[0017] This application can actually solve the problem of poor noise performance of the household electric actuator 3, and improve the noise performance of the household electric actuator 3 based on the way it is used. However, in this embodiment, the usage of the household electric actuator 3 is improved. Please refer to [link / reference]. Figure 1 and Figure 3 This utility model provides an embodiment: a silent household actuator, including a left noise-reducing housing 1, a detachable right noise-reducing housing 2 on one side of the left noise-reducing housing 1, an electric actuator 3 disposed between the inner cavities of the left noise-reducing housing 1 and the right noise-reducing housing 2, and a rubber frame 4. The rubber frames 4, which can slide vertically, are symmetrically arranged on the upper and lower sides of the inner cavities of the left noise-reducing housing 1 and the right noise-reducing housing 2. The electric actuator 3 is disposed in the space formed between the upper and lower rubber frames 4, and the space is adapted to the outer dimensions of the electric actuator 3. The inner walls of the inner cavities of the left noise-reducing housing 1 and the right noise-reducing housing 2 are both covered with a noise-reducing layer.

[0018] Please see Figure 4 and Figure 6 Multiple sets of fixing blocks 5 are symmetrically fixed on the left and right sides of the inner cavity of the left noise reduction housing 1 and the right noise reduction housing 2. Each set of two fixing blocks 5 are arranged symmetrically from top to bottom. A guide rod 6 is fixed between each set of fixing blocks 5. A damping block 7 that can slide vertically is sleeved on the side wall of the guide rod 6. The friction between the damping block 7 and the guide rod 6 further consumes vibration energy. A damping spring 8 is fixedly installed on the inner end face of the damping block 7. One end of the damping spring 8 is fixedly connected to the inner end face of the corresponding set of fixing blocks 5. The inner walls of the two damping blocks 7 are fixedly connected to the outer walls of the two sides of the rubber frame 4 respectively. The elastic support system formed by the rubber frame 4 and the damping spring 8 can effectively isolate the transmission of the actuator body vibration to the housing. Rubber pads 9 are symmetrically fixed on the upper and lower sides of the inner cavity of the left noise reduction housing 1 and the right noise reduction housing 2. Multiple sets of rubber balls 10 are arranged between the rubber pads 9 and the rubber frame 4. The rubber balls 10 are fixedly installed on the upper surface of the rubber pads 9. When the rubber frame 4 slides to the limit position, the rubber balls 10 on the surface of the rubber pads 9 buffer the impact force through elastic deformation, forming a secondary buffer protection.

[0019] Please see Figure 2and Figure 3 A guide cylinder 11 is fixedly installed on the outer wall of one side of the right noise-reducing housing 2. A lifting rod 12 that can slide vertically is installed inside the guide cylinder 11. Locking rods 13 are fixedly installed on the side wall and bottom of the lifting rod 12. Pulling the lifting rod 12 inside the guide cylinder 11 upward will drive the two sets of locking rods 13 to rise synchronously. Two sets of locking blocks 14 are fixedly installed on the outer wall of one side of the left noise-reducing housing 1. Locking holes 15 are opened through the locking blocks 14. The locking rods 13 are adapted to engage with the locking holes 15. A locking spring 16 is fixedly installed at the bottom of the guide cylinder 11. The lower end of the locking rod 16 is fixedly connected to the upper end of the bottom locking rod 13. When the locking hole 15 is aligned with the axis of the locking rod 13, after the lifting rod 12 is released, the locking spring 16 resets and pushes the locking rod 13 into the locking hole 15, thus completing the vertical locking of the two housings. Two sets of snap-fit ​​blocks 17 are fixedly installed on the outer wall of the other side of the left noise reduction housing 1, and two sets of snap-fit ​​buckles 18 are fixedly installed on the outer wall of the other side of the right noise reduction housing 2. The snap-fit ​​blocks 17 and snap-fit ​​buckles 18 are fitted and engaged in the inner cavity. At the same time, the snap-fit ​​blocks 17 of the left housing are engaged in the inner cavity of the snap-fit ​​buckles 18 of the right housing, forming a horizontal locking structure.

[0020] When using this actuator, the silent household actuator achieves silent operation through a multi-stage vibration reduction and noise reduction structure. During installation, first insert one side of the electric actuator 3 into the inner cavity of the left noise reduction housing 1, so that its upper and lower end faces are tightly fitted with the inner walls of the rubber frame 4 at the top and bottom of the inner cavity. Then, pull up the lifting rod 12 in the guide cylinder 11, which drives the two sets of locking rods 13 to rise synchronously. At this time, the locking spring 16 is stretched and deformed. Next, align the opening side of the right noise reduction housing 2 with the left noise reduction housing 1, so that the other side of the electric actuator 3 is inserted into the inner cavity of the right noise reduction housing 2 and fits with the rubber frame 4. At this time, the locking hole 15 is aligned with the axis of the locking rod 13. After releasing the lifting rod 12, the locking spring 16 returns to its original position and pushes the locking rod 13 into the locking hole 15, completing the vertical locking of the two housings. At the same time, the snap-fit ​​block 17 of the left housing snaps into the inner cavity of the snap-fit ​​buckle 18 of the right housing, forming a horizontal locking structure. When the electric actuator 3 is running, the vibration energy is first transmitted to the rubber frame 4. The rubber frame 4 is driven by the vibration to slide vertically along the guide rod 6, which causes the damping block 7 to generate frictional displacement on the guide rod 6. The damping spring 8 absorbs the vibration energy through elastic deformation, and together with the frictional damping of the damping block 7, it forms a first-level shock absorption system. When the rubber frame 4 slides to the limit position, the rubber ball 10 on the surface of the rubber pad 9 buffers the impact force through elastic deformation, forming a second-level buffer protection. At the same time, the noise reduction layer laid on the inner wall of the left noise reduction shell 1 and the right noise reduction shell 2 adopts porous sound-absorbing material, which converts the sound wave energy into heat energy through the internal microporous structure, realizing a third-level noise reduction treatment. Throughout the vibration transmission path, the sliding range of the rubber frame 4 is limited by the length of the guide rod 6. The stiffness coefficient of the damping spring 8 and the material hardness of the rubber ball 10 are matched to ensure effective attenuation under vibration at different frequencies. In summary, the elastic support system composed of the rubber frame 4 and the damping spring 8 effectively isolates the transmission of actuator body vibration to the housing. The friction between the damping block 7 and the guide rod 6 further consumes vibration energy. The dual damping mechanism reduces mechanical noise. Secondly, the synergistic effect of the noise reduction layer and the rubber ball 10 forms an acoustic barrier. The porous material has a high absorption rate for mid-to-high frequency noise, and the low-frequency resonance suppression effect of the rubber ball 10 keeps the overall noise level below 45 dB. Furthermore, the double locking structure of the snap-fit ​​buckle 18 and the locking rod 13 ensures the stability of the housing connection, avoiding the defects of easy loosening of traditional bolt fixing. At the same time, the modular design improves the efficiency of disassembly and maintenance. Finally, the size adaptation design of the rubber frame 4 and the actuator outline eliminates assembly gaps and prevents abnormal noise during operation. The overall structure is more compact than similar products. In conclusion, this technical solution significantly improves the quiet performance of household actuators through the combination of composite damping structure and multi-stage noise reduction design.

[0021] Through the above steps, when using the electric actuator 3, during installation, first insert one side of the electric actuator 3 into the inner cavity of the left noise-reducing housing 1, so that its upper and lower end faces are tightly fitted with the inner walls of the rubber frame 4 at the top and bottom of the inner cavity. Then, pull up the locking mechanism. Next, align the open side of the right noise-reducing housing 2 with the left noise-reducing housing 1, so that the other side of the electric actuator 3 is inserted into the inner cavity of the right noise-reducing housing 2 and fits with the rubber frame 4. Then, release the locking mechanism to complete the vertical locking of the two housings. When the electric actuator 3 is running, the vibration energy is first transmitted to the rubber frame 4. The rubber frame 4 is driven by vibration to achieve vertical sliding, which simultaneously drives the shock absorption mechanism to generate frictional displacement and absorb vibration energy. At the same time, the noise reduction layer laid on the inner walls of the left noise-reducing housing 1 and the right noise-reducing housing 2 uses porous sound-absorbing material. Through the internal microporous structure, the sound wave energy is converted into heat energy and consumed, thus achieving noise reduction. In summary, this technical solution significantly improves the quiet performance of household actuators by combining a composite shock absorption structure with a multi-stage noise reduction design.

[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A silent household actuator, comprising a left noise-reducing housing (1), a detachable right noise-reducing housing (2) disposed on one side of the left noise-reducing housing (1), and an electric actuator (3) disposed between the inner cavities of the left noise-reducing housing (1) and the right noise-reducing housing (2), characterized in that: It also includes a rubber frame (4). The left noise reduction housing (1) and the right noise reduction housing (2) are symmetrically provided with rubber frames (4) that can slide vertically on the upper and lower sides of the inner cavity. The electric actuator (3) is located in the space formed between the upper and lower rubber frames (4). The space is adapted to the outer dimensions of the electric actuator (3). The inner walls of the left noise reduction housing (1) and the right noise reduction housing (2) are covered with noise reduction layers.

2. The silent household actuator according to claim 1, characterized in that: Multiple sets of fixing blocks (5) are symmetrically fixed on the left and right sides of the inner cavity of the left noise reduction housing (1) and the right noise reduction housing (2). Each set of two fixing blocks (5) is arranged symmetrically up and down. A guide rod (6) is fixed between each set of fixing blocks (5). A damping block (7) that can slide vertically is sleeved on the side wall of the guide rod (6).

3. A silent household actuator according to claim 2, characterized in that: A damping spring (8) is fixedly installed on the inner end face of the damping block (7). One end of the damping spring (8) is fixedly connected to the inner end face of the corresponding fixed block (5). The inner walls of the damping blocks (7) on both sides are fixedly connected to the outer walls of the rubber frame (4) on both sides respectively.

4. A silent household actuator according to claim 1, characterized in that: Rubber pads (9) are symmetrically fixed on the upper and lower sides of the inner cavity of the left noise reduction housing (1) and the right noise reduction housing (2). Multiple sets of rubber balls (10) are arranged between the rubber pads (9) and the rubber frame (4). The rubber balls (10) are fixed on the upper surface of the rubber pads (9).

5. A silent household actuator according to claim 1, characterized in that: A guide cylinder (11) is fixedly installed on one side of the outer wall of the right noise reduction housing (2). A lifting rod (12) that can slide vertically is installed inside the guide cylinder (11). Locking rods (13) are fixedly installed on the side wall and bottom of the lifting rod (12).

6. A silent household actuator according to claim 5, characterized in that: Two sets of locking blocks (14) are fixedly installed on the outer wall of one side of the left noise reduction housing (1). The locking block (14) has a through locking hole (15). The locking rod (13) is adapted to engage with the locking hole (15). A locking spring (16) is fixedly installed at the bottom of the guide cylinder (11). The lower end of the locking spring (16) is fixedly connected to the upper end of the bottom locking rod (13).

7. A silent household actuator according to claim 1, characterized in that: Two sets of snap-fit ​​blocks (17) are fixedly installed on the outer wall of the left noise reduction housing (1), and two sets of snap-fit ​​buckles (18) are fixedly installed on the outer wall of the right noise reduction housing (2). The snap-fit ​​blocks (17) and snap-fit ​​buckles (18) are adapted to engage with each other.

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