1. A sound generating apparatus, comprising: a housing (100), wherein the housing (100) comprises a cable hole (110) and an inner cavity in communication with the cable hole (110); a sound generating member (200), wherein the sound generating member (200) is located in the inner cavity; an
electrical connection cable (300), wherein the
electrical connection cable (300) is electrically connected to the sound generating member (200), and the
electrical connection cable (300) passes through the cable hole (110); and a sound-blocking member (400), wherein the sound-blocking member (400) is placed between the electrical connection cable (300) and the cable hole (110) to seal a gap between the electrical connection cable (300) and the cable hole (110). 2. The sound-generating apparatus according to claim 1, wherein a relative position between the electrical connection cable (300) and the cable hole (110) comprises a sealing position; the sound-blocking member (400) is fixedly connected to an outer wall of the electrical connection cable (300), and when the electrical connection cable (300) is moved to the sealing position with respect to the cable hole (110), the sound-blocking member (400) is configured to extend into the cable hole (110) from the outside of the cable hole (110) and slide with respect to an inner wall of the cable hole (110), to be in contact with the inner wall of the cable hole (110) to seal the space between the electrical connection cable (300) and the cable hole (110) when the electrical connection cable (300) and the cable hole (110) are in the sealing position. 3. The sound generating apparatus according to claim 1 or 2, wherein the sound-blocking member (400) comprises an adjacent region and a guide region, and the guide region is located at one end of the adjacent region that extends away from the sound-generating member (200); The radial cross-sectional area of the guide region exhibits a tendency to decrease in a direction away from the adjacent region; and When the electrical connection cable (300) moves into the sealing position with respect to the cable hole (110), the sound-blocking member (400) is configured to extend into the cable hole (110) through the guide region and slide with respect to the inner wall of the cable hole (110), so that when the electrical connection cable (300) and the cable hole (110) are in the sealing position, the adjacent region is in contact with the inner wall of the cable hole (110) to seal the gap between the electrical connection cable (300) and the cable hole (110). 4. The sound generating apparatus according to any of claims 1 to 3, wherein the sound-blocking member (400) is fixedly connected to an inner wall of the cable hole (110), and the sound-blocking member (400) is in contact with an outer wall of the electrical connection cable (300). 5. The sound generating apparatus according to any of claims 1 to 4, wherein the sound blocking member (400) surrounds the entire outer periphery of the electrical connection cable (300). 6. The sound generating apparatus according to any of claims 3 to 5, wherein an inner contour of the cable hole (110) coincides with a shape of an outer contour of a radial cross-section of the electrical connection cable (300), and the sound-blocking member (400) has a uniform thickness in a circumferential direction of the electrical connection cable (300). 7. The sound generating apparatus according to any of claims 1 to 6, wherein the housing (100) comprises a sound-generating surface, a rear end surface (120) and a surrounding surface (130), the sound-generating surface being positioned opposite and separate from the rear end surface (120), 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), and the sound-generating surface, the rear end surface (120) and the surrounding surface (130) together define, in an enveloping manner, the inner cavity; the sound-generating member (200) is connected to the sound-generating surface and / or the surrounding surface (130), one sound-emitting side of the sound-generating member (200) is opposite the sound-generating surface, the electrical connection cable (300) is located on another side of the sound-generating member (200) away from the sound-emitting side, and the cable hole (110) is positioned on the rear end surface (120); and A cable hole axis (110) is perpendicular to the rear end surface (120). 8. The sound generating apparatus according to any of claims 1 to 7, wherein the sound-blocking member (400) is elastic, and a material of the sound-blocking member (400) comprises one of foam, soft rubber, and felt; and / or the housing (100) is a soft rubber housing. 9. A cleaning device, comprising the sound generating apparatus according to any of claims 1 to 8 described above, and a main device body, wherein the sound generating apparatus is placed in the main device body. 10. The cleaning device according to claim 9, wherein the main body of the device comprises a device housing, the device housing enclosely defines an
accommodation recess, the device housing is provided with a
sound emission orifice in communication with the
accommodation recess, the sound generating apparatus is located in the
accommodation recess, and the sound generating apparatus is opposite the
sound emission orifice; and The sound generating apparatus housing is connected to the device housing, or at least a partial region of the sound generating apparatus housing and the device housing are integrally formed.