Sound production apparatus and cleaning device

Abstract

A sound production apparatus and a cleaning device. According to the main technical solution, the sound production apparatus comprises: a housing, the housing comprising a wire hole and an inner cavity communicated with the wire hole; a sound production member, the sound production member being located in the inner cavity; an electric connection wire, the electric connection wire being electrically connected to the sound production member, the electric connection wire passing through the wire hole, and relative positions of the electric connection wire and the wire hole including a sealing position; and a sound insulation member, wherein when the electric connection wire is located at the sealing position relative to the wire hole, the sound insulation member is located between the electric connection wire and the wire hole so as to seal a gap between the electric connection wire and the wire hole.

Description

Sound-generating device and cleaning equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202322306718.0 filed on August 25, 2023, and the contents of the above-mentioned Chinese patent application disclosure are hereby incorporated by reference in their entirety as a part of this application. Technical Field

[0003] The present application relates to the field of smart home technology, and in particular to a sound-generating device and a cleaning device. Background Art

[0004] With the continuous development of smart home technology, cleaning robots are increasingly used in daily cleaning tasks. Their intelligence is also constantly improving, providing numerous conveniences for daily life. Cleaning robots can be controlled by manual buttons, remote controls, and voice commands. Cleaning robots are often equipped with a voice generator for communicating information through voice. In voice and remote control, the voice generator uses voice commands to facilitate interaction and provide feedback on control results.

[0005] A sound-generating device typically includes a speaker and a housing. The speaker is located within the housing, and the speaker and the housing enclose a sound cavity, making the sound produced by the sound-generating device louder and improving sound performance. However, to enable data transmission between the speaker and the cleaning robot's main controller and to control the sound content of the speaker, a perforation is provided in the housing. The speaker's electrical connection wire passes through the perforation and is connected to the main controller outside the housing. To facilitate the installation of the electrical connection wire, the inner diameter of the perforation is usually larger than the outer diameter of the electrical connection wire. The gap between the perforation and the electrical connection wire will result in poor sealing of the speaker's sound cavity, and sound leakage will cause distortion of the speaker's sound.

[0006] Summary of the Invention

[0007] In view of this, the present application provides a sound-generating device and a cleaning device.

[0008] In one aspect, the present application provides a sound-generating device, comprising:

[0009] A housing (100), the housing (100) comprising a lead hole (110) and an inner cavity communicating with the lead hole (110);

[0010] A sound-generating member (200), the sound-generating member (200) being located in the inner cavity;

[0011] An electrical connection line (300), the electrical connection line (300) is electrically connected to the sound-generating member (200), and the electrical connection line (300) is passed through the lead hole (110), and the relative position of the electrical connection line (300) and the lead hole (110) includes a sealing position;

[0012] The acoustic resistance member (400) is located between the electrical connection wire (300) and the lead hole (110) when the electrical connection wire (300) is located in a sealed position relative to the lead hole (110) to seal the gap between the electrical connection wire (300) and the lead hole (110).

[0013] The acoustic resistance member (400) is fixedly connected to the outer wall of the electrical connection wire (300). When the electrical connection wire (300) moves toward a sealed position relative to the lead hole (110), the acoustic resistance member (400) is used to extend into the lead hole (110) from the outside of the lead hole (110) and slide relative to the inner wall of the lead hole (110). When the electrical connection wire (300) and the lead hole (110) are in the sealed position, the acoustic resistance member (400) abuts against the inner wall of the lead hole (110) to seal the gap between the electrical connection wire (300) and the lead hole (110).

[0014] The sound-blocking member (400) comprises an abutting area and a guiding area, and the guiding area is located at an end of the abutting area opposite to the sound-generating member (200);

[0015] The radial cross-sectional area of ​​the guide region includes a decreasing trend in a direction away from the abutment region;

[0016] When the electrical connection wire (300) moves toward the sealing position relative to the lead hole (110), the sound resistance member (400) is used to extend into the lead hole (110) through the guide area and slide relative to the inner wall of the lead hole (110), so that when the electrical connection wire (300) and the lead hole (110) are in the sealing position, the abutting area abuts against the inner wall of the lead hole (110) to seal the gap between the electrical connection wire (300) and the lead hole (110).

[0017] The sound-blocking member (400) is fixedly connected to the inner wall of the lead hole (110), and the sound-blocking member (400) abuts against the outer wall of the electrical connection line (300).

[0018] The sound-blocking component (400) surrounds the outer circumference of the electrical connection line (300).

[0019] The inner contour of the lead hole (110) matches the shape of the outer contour of the radial cross section of the electrical connection line (300), and the acoustic resistance component (400) has a uniform thickness in the circumferential direction of the electrical connection line (300).

[0020] The shell (100) includes a sound-generating surface, a rear end surface (120), and a surrounding surface (130). The sound-generating surface and the rear end surface (120) are spaced apart from each other. The surrounding surface (130) surrounds the sound-generating surface and the rear end surface (120). The surrounding surface (130) is connected to the sound-generating surface and the rear end surface (120) respectively. The sound-generating surface, the rear end surface (120), and the surrounding surface (130) enclose an inner cavity.

[0021] The sound-emitting member (200) is connected to the sound-emitting surface and / or the surrounding surface (130), the sound-emitting side of the sound-emitting member (200) is opposite to the sound-emitting surface, the electrical connection line (300) is located on the other side of the sound-emitting member (200) opposite to the sound-emitting side, and the lead hole (110) is provided on the rear end surface (120);

[0022] The hole axis of the lead hole (110) is perpendicular to the rear end surface (120).

[0023] The sound-absorbing member (400) is elastic, and the material of the sound-absorbing member (400) includes at least one of foam, soft glue and felt.

[0024] Wherein, the housing (100) is a soft rubber housing.

[0025] On the other hand, the present application also provides a cleaning device, comprising a sound-generating device as described in any one of the above items, and a device body, wherein the sound-generating device is arranged on the device body.

[0026] The device body includes a device housing, which encloses a storage space. The device housing is provided with a sound outlet connected to the storage space. The sound-generating device is located in the storage space, and the sound-generating device is opposite to the sound outlet.

[0027] The shell of the sound-generating device is connected to the device housing, or at least a portion of the shell of the sound-generating device is integrally formed with the device housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a schematic structural diagram of a sound-generating device provided in an embodiment of the present application;

[0029] FIG2 is a schematic structural diagram of a housing in a sound-generating device provided in an embodiment of the present application;

[0030] FIG3 is a schematic structural diagram of a sound-generating component, an electrical connection line, and a sound-resisting component in a sound-generating device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to further illustrate the technical means and effects adopted by this application to achieve the predetermined application purpose, the following is a detailed description of the specific implementation method, structure, characteristics and effects of a sound-emitting device proposed in this application in combination with the accompanying drawings and preferred embodiments.

[0032] On the one hand, as shown in Figures 1-3, embodiments of the present application provide a sound-generating device, including:

[0033] A housing (100), the housing (100) comprising a lead hole (110) and an inner cavity communicating with the lead hole (110);

[0034] A sound-generating member (200), the sound-generating member (200) being located in the inner cavity;

[0035] An electrical connection line (300), the electrical connection line (300) is electrically connected to the sound-generating member (200), and the electrical connection line (300) is passed through the lead hole (110), and the relative position of the electrical connection line (300) and the lead hole (110) includes a sealing position;

[0036] The acoustic resistance member (400) is located between the electrical connection wire (300) and the lead hole (110) when the electrical connection wire (300) is in a sealed position relative to the lead hole (110) to seal the gap between the electrical connection wire (300) and the lead hole (110).

[0037] The sound-emitting component (200) is a loudspeaker or speaker, and mainly includes a basin, a sound-emitting membrane, a voice coil, and a magnet. The voice coil is located in the magnetic gap of the magnet, and the sound-emitting membrane is connected to the basin and the voice coil respectively. When the sound-emitting device is used in a cleaning device, the main controller of the cleaning device will send an electrical signal to the voice coil, which generates a driving force under the action of the magnet, causing the voice coil to drive the sound-emitting membrane to vibrate and produce sound. The electrical connection line (300) is connected to the voice coil. The electrical connection line (300) includes two signal lines, which are respectively connected to the two ends of the voice coil to form a current loop with the voice coil. The two signal lines are led out from the back of the sound-emitting component (200) opposite to the sound-emitting membrane. After the two signal lines are led out from the voice coil, they can be covered by a wire sheath to form a whole electrical connection line (300). The outer surface of the electrical connection line (300) is approximately cylindrical, and the number of lead holes (110) is one, so that the whole electrical connection line (300) can be passed through. Alternatively, in some embodiments, the acoustic resistance member (400) can be wrapped around the outer periphery of two independent signal lines, and the two signal lines can be fitted together by the acoustic resistance member (400). The number of lead holes (110) is one, and the acoustic resistance member (400) and the signal line wrapped therein are integrally threaded. Alternatively, in some embodiments, two lead holes (110) can be provided, and the two signal lines are respectively threaded through the two lead holes (110). The following description takes the electrical connection line (300) as an entire cable composed of a sheathed signal line as an example.

[0038] The relative position of the electrical connection line (300) and the lead hole (110) includes a sealing position, which is the relative position of the electrical connection line (300) and the lead hole (110) when the sound-generating device is installed and can be put into use; or in other words, the sealing position is the position where the electrical connection line (300) moves relative to the lead hole (110) to the position where the sound resistance member (400) can seal the gap; or in other words, the sound resistance member (400) blocks the gap at least when the relative position of the electrical connection line (300) and the lead hole (110) reaches the sealing position. The sound resistance member (400) can be arranged between the lead hole (110) and the electrical connection line (300) in various forms, and can be arranged according to the shape of the lead hole (110) and the electrical connection line (300), in order to block all gaps between the lead hole (110) and the electrical connection line (300) so that sound does not leak out. For example, the acoustic resistance (400) can be provided only on one side of the outer periphery of the electrical connection line (300), and the outer periphery of the electrical connection line (300) different from the acoustic resistance (400) is used to abut against the inner wall of the lead hole (110). More specifically, the electrical connection line (300) can be a cable with a square radial cross-section, and the lead hole (110) is shaped as a square hole larger than the outer contour of the electrical connection line (300). The acoustic resistance (400) can cover three adjacent sides of the outer periphery of the electrical connection line (300). When the electrical connection line (300) passes through the lead hole (110), the outer wall of one side not covered by the acoustic resistance (400) directly abuts against the inner wall of one side of the lead hole (110), and the acoustic resistance (400) abuts against the inner walls of the other three sides of the lead hole (110). Alternatively, the electrical connection line (300) can be a cable with a circular outer contour in a radial cross section, and the shape of the lead hole (110) is a circular hole larger than the outer contour of the electrical connection line (300), and the sound resistance (400) can cover half of the circumference of the outer wall of the electrical connection line (300) and smoothly transition with the outer wall of the electrical connection line (300) not covered by the sound resistance (400). Alternatively, the sound resistance (400) can be wrapped around the outer circumference of the electrical connection line (300) to achieve effective sealing in all directions of the electrical connection line (300), preventing the electrical connection line (300) from being subjected to external force or vibration. A gap appears between any side and the inner wall of the lead hole (110), affecting the stability of the sound effect. More specifically, the electrical connection line (300) can be a cable with a square outer contour in a radial cross section or a cable with a circular outer contour in a cross section, and the sound resistance (400) surrounds the outer circumference of the square cable or the circular cable. In addition, in some embodiments, the electrical connection line (300) can also be a cable with an irregular radial cross-section, such as a semicircular, elliptical, etc. The sound barrier (400) can adapt to the irregular shape of the electrical connection line (300) by changing its shape, so as to completely block the gap between the electrical connection line (300) and the lead hole (110).

[0039] Furthermore, the sound-blocking member (400) is elastic, for example, the material of the sound-blocking member (400) includes at least one of foam, soft glue, and felt, preferably foam. When the electrical connection wire (300) is installed, the elastic deformation of the sound-blocking member (400) allows the electrical connection wire (300) to pass through the lead hole (110) conveniently, and the rebound of the sound-blocking member (400) fills the space between the electrical connection wire (300) and the lead hole (110), thereby achieving a seal.

[0040] The sound-emitting device and cleaning equipment proposed in the embodiments of the present application prevent sound leakage by setting a sound-blocking member between the electrical connection line and the lead hole, thereby ensuring the sealing of the sound cavity and further ensuring the sound performance of the sound-emitting device. In the prior art, a perforation is set on the shell, and the electrical connection line of the speaker passes through the perforation of the shell and is connected to the main controller outside the shell. In order to achieve the installation of the electrical connection line, the inner diameter of the perforation is usually larger than the outer diameter of the electrical connection line. The gap between the perforation and the electrical connection line will cause the sound cavity of the speaker to be poorly sealed, and sound leakage will cause the sound of the speaker to be distorted. In the technical solution of the present application, the sound-blocking member is located between the electrical connection line and the lead hole, and the sound-blocking member fits tightly with the electrical connection line and the lead hole, blocking the gap between the electrical connection line and the lead hole, so that the sound cavity forms a closed sound cavity, ensuring that the sound converges and is emitted through the sound outlet hole of the shell, making the sound loud and ensuring the sound quality.

[0041] For the sake of convenience, the following example takes the case where the sound-blocking member (400) surrounds the outer periphery of the electrical connection line (300). It can be understood that when the sound-blocking member (400) is arranged in a circumferential area of ​​the electrical connection line (300), the features of the following embodiments are still applicable.

[0042] The connection method between the acoustic resistance member (400), the electrical connection line (300) and the lead hole (110) can be various. For example, in one embodiment, the acoustic resistance member (400) is fixedly connected to the outer wall of the electrical connection line (300), and the acoustic resistance member (400) abuts against the inner wall of the lead hole (110).

[0043] The sound-blocking member (400) is fixedly connected to the electrical connection line (300). For example, the sound-blocking member (400) can be adhered to the outer wall of the electrical connection line (300) using an adhesive so that the position of the sound-blocking member (400) and the electrical connection line (300) will not shift during installation and use. The sound-blocking member (400) fits tightly with the outer wall of the electrical connection line (300) in the area covering the electrical connection line (300), so that there is no gap between the outer wall of the sound-blocking member (400) and the electrical connection line (300), and no sound leakage occurs. The shape of the outer peripheral surface of the sound-blocking member (400) can be adapted to the shape of the inner wall of the lead hole (110), but it is understandable that the outer diameter of the sound-blocking member (400) should be slightly larger than the inner diameter of the lead hole (110) so that the sound-blocking member (400) can abut against the inner wall of the lead hole (110) to ensure a sealing effect.

[0044] When the electric connection line (300) is installed, the electric connection line (300) is inserted into the lead hole (110) and moves relative to the lead hole (110) toward a sealed position. The sound-blocking member (400) is fixedly connected to the electric connection line (300) and, driven by the electric connection line (300), extends from the outside of the lead hole (110) into the lead hole (110) and slides relative to the inner wall of the lead hole (110). When the electric connection line (300) and the lead hole (110) are in the sealed position, the sound-blocking member (400) abuts against the inner wall of the lead hole (110) to seal the gap between the electric connection line (300) and the lead hole (110). The sound-blocking member (400) and the electric connection line (300) are installed synchronously without the need to install the sound-blocking member (400) separately.

[0045] In order to further facilitate the sound resistance member (400) to extend into the lead hole (110) and avoid the end of the sound resistance member (400) being stuck on the edge of the lead hole (110), in one embodiment, the sound resistance member (400) includes an abutting area and a guide area, and the guide area is located at the end of the abutting area opposite to the sound-generating member (200). The radial cross-sectional area of ​​the guide area includes a decreasing trend in the direction away from the abutting area. When the electrical connection line (300) moves toward the sealing position relative to the lead hole (110), the sound resistance member (400) is used to extend into the lead hole (110) through the guide area and slide relative to the inner wall of the lead hole (110), so that when the electrical connection line (300) and the lead hole (110) are in the sealing position, the abutting area abuts against the inner wall of the lead hole (110) to seal the gap between the electrical connection line (300) and the lead hole (110).

[0046] The abutment area and the guide area are two areas in the axial direction of the sound-blocking member (400). The radial cross-sectional area of ​​the guide area can gradually decrease in the direction away from the abutment area, and the degree of reduction is uniform in the circumferential direction, so that the outer peripheral surface of the guide area is conical. The end surface area of ​​the guide area away from the abutment area is small, making it easier for the guide area to enter the lead hole (110). When the electrical connection line (300) moves relative to the lead hole (110), the inclined surface of the guide area will gradually contact the lead hole (110) and be squeezed by the inner wall of the lead hole (110), and then transition to the abutment area to enter the lead hole (110). When the electrical connection line (300) and the lead hole (110) are in a sealed position, the abutment area will seal the gap between the electrical connection line (300) and the lead hole (110), making the installation of the sound-blocking member (400) smoother.

[0047] In another embodiment, the sound resistance member (400) is fixedly connected to the inner wall of the lead hole (110), and the sound resistance member (400) abuts against the outer wall of the electrical connection line (300).

[0048] The acoustic resistance member (400) is fixedly connected to the lead hole (110). For example, the acoustic resistance member (400) can be adhered to the inner wall of the lead hole (110) using an adhesive, so that during installation and use, the position of the acoustic resistance member (400) and the lead hole (110) will not shift. The acoustic resistance member (400) is tightly fitted with the inner wall of the lead hole (110) in the area covering the inner wall of the lead hole (110), so that there is no gap between the acoustic resistance member (400) and the inner wall of the lead hole (110), and no sound leakage will occur. The acoustic resistor (400) includes a middle opening for passing the electrical connection line (300). The shape of the middle opening can be adapted to the outer contour of the electrical connection line (300). However, it is understandable that the inner diameter of the middle opening of the acoustic resistor (400) should be slightly smaller than the outer diameter of the electrical connection line (300) so that the acoustic resistor (400) can abut against the outer wall of the electrical connection line (300) to ensure a sealing effect. It is worth noting that the embodiment of the fixed connection between the acoustic resistor (400) and the electrical connection line (300) is compared with the method of fixing the acoustic resistor (400) to the lead hole (110). The acoustic resistor (400) can cover more area on the length of the electrical connection line (300), the connection strength is stronger, and it is not easy to fall off. At the same time, the structure of the electrical connection line (300) is relatively stable, while the lead hole (110) in the housing (100) made of flexible material is easily deformed and pulls the acoustic resistor (400).

[0049] In one embodiment, the inner contour of the lead hole (110) matches the shape of the outer contour of the radial cross section of the electrical connection line (300). The shape of the lead hole (110) can be various and can be set according to the outer contour shape of the electrical connection line (300). For example, in one embodiment, the lead hole (110) is a circular hole, the outer contour of the radial cross section of the electrical connection line (300) is circular, and the thickness of the acoustic resistance member (400) is uniform in the circumferential direction of the electrical connection line (300). The acoustic resistance member (400) is a cylindrical tube-shaped structure with uniform circumferential thickness. In a natural state, the deformation amount and force in any direction or position are consistent. Compared with the case where the lead hole (110) is a square hole or an irregular hole, the acoustic resistance member (400) is prevented from being squeezed inconsistently at the side and corners of the lead hole (110), resulting in a weak area in the sealing of the acoustic resistance member (400).

[0050] In one embodiment, the end surface of the sound-blocking member (400) close to one end of the sound-generating member (200) in the length direction of the electric connection line (300) abuts against the sound-generating member (200). This stabilizes the relative position between the electric connection line (300) and the sound-generating member (200), reduces the range of movement of the electric connection line (300) relative to the lead hole (110) caused by vibration due to sound waves, and prevents the sound-blocking member (400) from being squeezed from one side due to the movement of the electric connection line (300), thereby preventing a gap from forming between the electric connection line (300) or the lead hole (110).

[0051] In one embodiment, the housing (100) includes a sound-emitting surface, a rear end surface (120), and a surrounding surface (130). The sound-emitting surface and the rear end surface (120) are spaced apart from each other. The surrounding surface (130) surrounds the sound-emitting surface and the rear end surface (120). The surrounding surface (130) is connected to the sound-emitting surface and the rear end surface (120), respectively. The sound-emitting surface, the rear end surface (120), and the surrounding surface (130) enclose an inner cavity. The sound-emitting member (200) is connected to the sound-emitting surface and / or the surrounding surface (130). The sound-emitting side of the sound-emitting member (200) is opposite to the sound-emitting surface. The electrical connection line (300) is located on the other side of the sound-emitting member (200) opposite to the sound-emitting side. The lead hole (110) is provided on the rear end surface (120).

[0052] The rear end face (120) is opposite to the side of the sound-emitting member (200) from which the electrical connection wire (300) is led out, and the lead hole (110) is provided on the rear end face (120) to avoid the complicated routing of the electrical connection wire (300) in the inner cavity. The rear end face (120), the surrounding surface (130) and the side of the sound-emitting member (200) opposite to the sound-emitting surface together enclose the rear sound cavity of the sound-emitting member (200), and the electrical connection wire (300) is routed in the rear sound cavity to avoid interference from strong sound waves in the front sound cavity on the side of the sound-emitting surface. The rear end face (120) is a plane, and the hole axis of the lead hole (110) is perpendicular to the rear end face (120), ensuring that the sound-blocking member (400) can effectively abut against the lead hole (110) on either side of the circumference of the electrical connection wire (300).

[0053] In one embodiment, the housing (100) is a soft rubber housing, which has good sealing performance and can ensure the sealing between the front sound cavity and the rear sound cavity. The soft rubber housing also has good toughness and can play a shock-absorbing role. During the cleaning process of the cleaning device, the vibration of the cleaning device can be reduced, so that the sound-generating device can still maintain good sound quality in a vibrating environment.

[0054] On the other hand, an embodiment of the present application further provides a cleaning device, comprising a sound-generating device as described in any one of the above items, and a device body, wherein the sound-generating device is arranged on the device body.

[0055] More specifically, the device body includes a device shell, which encloses a storage space. A sound hole connected to the storage space is opened on the device shell. The sound-emitting device is located in the storage space, and the sound-emitting device is opposite to the sound hole.

[0056] The main body of the device is used for mobile cleaning, and its outer contour is an approximately flat cylindrical structure. The device shell includes a bottom surface relative to the ground during cleaning, a top surface relative to the top, and side surfaces surrounding the top and bottom surfaces. The sound-emitting device or sound hole can be set at multiple positions of the device body, and sound can be emitted from multiple positions of the device body. For example, it can be set at the top, bottom or side. The cleaning device can include only a single sound-emitting device, or multiple sound-emitting devices can be set at different positions. The sound-emitting device is electrically connected to the main controller of the device body, and different sound-emitting devices can be controlled to emit sound according to different working states. For example, when interacting with the user, the number of sound-emitting devices for sound output can be selected according to the distance from the user, and the sound-emitting device facing the user can be selected for sound output. Or, if an alarm is required, multiple sound-emitting devices can be selected to output sound simultaneously to serve as a prompt.

[0057] The housing (100) of the sound-generating device can be connected to the device housing via a connecting member. In an embodiment where the housing (100) of the sound-generating device is a soft-gel housing, a connecting member with a relatively high hardness can be processed on the soft-gel housing to cooperate with the device housing to fix the sound-generating device. Alternatively, at least a portion of the housing (100) of the sound-generating device and the device housing can be integrally formed. For example, the housing (100) of the sound-generating device includes a top housing forming a front sound cavity and a rear housing forming a rear sound cavity. During the processing of the device housing, the device housing and the top housing are integrally formed, the rear housing and the top housing are assembled, and the sound-generating member (200) of the sound-generating device is sealed therein, thereby achieving a more stable position of the sound-generating device and more convenient installation.

[0058] In addition, the cleaning equipment includes the aforementioned sound-generating device, which has the characteristics of loud sound and good sound effect, which will not be elaborated here.

[0059] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A sound-generating device, characterized in that: include: A housing (100), the housing (100) comprising a lead-in hole (110) and an inner cavity communicating with the lead-in hole (110); A sound-generating member (200), the sound-generating member (200) being located in the inner cavity; An electrical connection line (300), the electrical connection line (300) being electrically connected to the sound-generating member (200), and the electrical connection line (300) being passed through the lead hole (110); A sound-blocking member (400) is located between the electrical connection wire (300) and the lead-wire hole (110) to seal the gap between the electrical connection wire (300) and the lead-wire hole (110).

2. The sound generating device according to claim 1, characterized in that: The relative position of the electrical connection wire (300) and the lead hole (110) includes a sealing position; the sound resistance (400) is fixedly connected to the outer wall of the electrical connection wire (300); when the electrical connection wire (300) moves relative to the lead hole (110) toward the sealing position, the sound resistance (400) is used to extend into the lead hole (110) from the outside of the lead hole (110) and slide relative to the inner wall of the lead hole (110), so as to abut against the inner wall of the lead hole (110) and seal the gap between the electrical connection wire (300) and the lead hole (110) when the electrical connection wire (300) and the lead hole (110) are in the sealing position.

3. The sound-generating device according to claim 2, characterized in that: The sound-blocking member (400) comprises a contact area and a guide area, wherein the guide area is located at an end of the contact area opposite to the sound-generating member (200); The radial cross-sectional area of ​​the guide region includes a decreasing trend in a direction away from the abutment region; When the electrical connection wire (300) moves toward the sealing position relative to the lead hole (110), the sound resistance member (400) is used to extend into the lead hole (110) through the guide area and slide relative to the inner wall of the lead hole (110), so that when the electrical connection wire (300) and the lead hole (110) are in the sealing position, the abutment area abuts against the inner wall of the lead hole (110) to seal the gap between the electrical connection wire (300) and the lead hole (110).

4. The sound generating device according to claim 1, characterized in that: The sound resistance member (400) is fixedly connected to the inner wall of the lead hole (110), and the sound resistance member (400) abuts against the outer wall of the electrical connection line (300).

5. The sound generating device according to claim 1, characterized in that: The sound-blocking component (400) surrounds the outer circumference of the electrical connection line (300).

6. The sound generating device according to claim 3, characterized in that: The inner contour of the lead hole (110) matches the shape of the outer contour of the radial cross section of the electrical connection line (300), and the acoustic resistance (400) has a uniform thickness in the circumferential direction of the electrical connection line (300).

7. The sound generating device according to claim 1, characterized in that: The housing (100) comprises a sound-generating surface, a rear end surface (120) and a surrounding surface (130), wherein the sound-generating surface and the rear end surface The end surfaces (120) are arranged at intervals relative to each other, the surrounding surface (130) surrounds the sound-generating surface and the rear end surface (120), the surrounding surface (130) is connected to the sound-generating surface and the rear end surface (120) respectively, and the sound-generating surface, the rear end surface (120) and the surrounding surface (130) enclose the inner cavity; The sound-emitting member (200) is connected to the sound-emitting surface and / or the surrounding surface (130); the sound-emitting side of the sound-emitting member (200) is opposite to the sound-emitting surface; the electrical connection line (300) is located on the other side of the sound-emitting member (200) opposite to the sound-emitting side; and the lead hole (110) is provided on the rear end surface (120); The hole axis of the lead hole (110) is perpendicular to the rear end surface (120).

8. The sound generating device according to claim 1, characterized in that: The sound-absorbing member (400) is elastic, and the material of the sound-absorbing member (400) comprises one of foam, soft glue and felt; And / or, the shell (100) is a soft rubber shell.

9. A cleaning device, characterized in that: It comprises a sound-generating device as described in any one of claims 1 to 8, and a device body, wherein the sound-generating device is arranged on the device body.

10. The cleaning device according to claim 9, characterized in that The device body comprises a device shell, the device shell encloses a storage space, a sound outlet hole communicating with the storage space is opened on the device shell, the sound-generating device is located in the storage space, and the sound-generating device is opposite to the sound outlet hole; The shell of the sound-generating device is connected to the device housing, or at least a partial area of ​​the shell of the sound-generating device is integrally formed with the device housing.

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