Sound insulation device for power capacitor
A technology of power capacitors and capacitors, applied in capacitors, harmonic reduction devices, instruments, etc., can solve the problems of easy shaking of noise reduction partitions, shaking of capacitor shells, and large noise of capacitors, and achieve enhanced sound insulation and noise reduction Effects, Shake Reduction, Noise Stabilization Effects
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Embodiment 1
[0032] refer to Figure 1-7 , a sound insulation device for a power capacitor, comprising a capacitor casing 1, a base 2 is fixedly installed at the bottom of the capacitor casing 1, a top plate 3 is fixedly installed on the top of the capacitor casing 1, and two sleeves are fixedly connected to the top of the top plate 3 Both sides of the tube 4 and the capacitor housing 1 are provided with noise reduction baffles 5 . The top wall of the base 2 and the top wall of the top plate 3 are both provided with two positioning grooves 6, and a space gap adjustment mechanism is provided between the noise reduction baffles 5;
[0033] The space gap adjustment mechanism includes a noise detection cylinder 7 that is fixedly connected to the base 2 and the top plate 3 and located outside the positioning groove 6. Both sides of the noise detection cylinder 7 are slidably installed with sliding rods 8, and the other end of the sliding rod 8 penetrates to the two sides. The noise reduction b...
Embodiment 2
[0035] like Figure 1-7As shown, this embodiment is basically the same as Embodiment 1. Preferably, the noise detection mechanism includes a limit groove 71 opened on the side of the noise detection cylinder 7 close to the capacitor housing 1, and an elastic film is fixedly installed inside the limit groove 71 72. The noise generated during the operation of the capacitor enters the interior of the noise detection cylinder 7 along the limit groove 71 on the side wall of the noise detection cylinder 7, and the noise sound wave continuously hits the side wall of the elastic film 72, thereby causing the elastic film 72 to deform, and the elastic film 72 The inner wall of the noise detection cylinder 7 is fixedly connected to a limit cylinder 73, the inner wall of the limit cylinder 73 is fixedly connected with a piezoelectric ceramic 75, and an elastic limit member 74 is provided between the piezoelectric ceramic 75 and the elastic film 72, Then, the elastic film 72 presses the el...
Embodiment 3
[0037] like Figure 1-7 As shown, this embodiment is basically the same as Embodiment 1. Preferably, the clamping and limiting mechanism includes a limiting hole 91 opened inside the clamping limiting sleeve 9, and an electromagnetic connecting sleeve 95 is fixedly connected to the inner wall of the limiting hole 91. The inner wall of the electromagnetic connecting sleeve 95 is fixedly connected with a second spring 94, the other end of the second spring 94 is fixedly connected with a strut 92, and the other end of the strut 92 is fixedly installed with a permanent magnet clamp arm 93, and the electromagnetic connecting sleeve 95 is pressed After the electric signal of the electric ceramics 75 is turned on, under the action of magnetic adsorption, the second spring 94 is compressed, so that the permanent magnet clamp arm 93 contacts the adsorption limit, so that the sliding rod 8 can be clamped along the interior of the clamp limit sleeve 9. slide;
[0038] The limit holes 91...
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