Cabinet for electrical equipment

Abstract

The utility model relates to the technical field of electrical equipment cabinets, and provides a cabinet for electrical equipment, which comprises a cabinet and two side plates symmetrically fixed on two sides of the cabinet, the two side plates are both provided with a plurality of vent holes, the opposite sides of the two side plates are both fixedly connected with mounting leaf frames, and the mounting leaf frames are fixedly connected with the mounting leaf frames. And a plurality of louver blades are movably connected in the louver mounting frame from top to bottom in sequence. According to the utility model, the noise reduction mechanism is designed to combine sound absorption, fluid dynamics and vibration isolation principles, and the level of noise generated during air circulation of the cabinet is effectively reduced, so that enough ventilation quantity of the cabinet can be ensured, the noise can be greatly reduced, and the comfort and quietness of the use environment of the cabinet are further improved; according to the utility model, through the arrangement of the blade stabilizing mechanism, the resonance effect and noise generated in the operation and adjustment process of the louver blades can be effectively reduced, and the stability of the louver blades and the use comfort of the cabinet are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment cabinets, and specifically, to a cabinet for electrical equipment. Background Art

[0002] The existing cabinet is provided with cooling fans and louvers on both sides of the cabinet. The cooling fans suck the air inside the cabinet from the louvers on one side and then discharge it from the louvers on the other side, forming a circulating flow of air. This convection can effectively take away the heat generated inside the cabinet, maintain the freshness of the air, prevent hot air from staying inside the cabinet, and the louver design helps to control the direction and speed of air inlet and outlet, enabling the air to flow more effectively through all the equipment inside the cabinet without forming local dead corners or hot spots. At the same time, the louvers can effectively block dust and foreign objects from entering the cabinet without significantly reducing the air circulation efficiency.

[0003] When the air is sucked in from one side louver and discharged from the other side of the above cabinet, noise will be generated. The main reason is that the air flow will form vortices and turbulences, and these turbulences will generate noise. Especially when the wind speed is relatively high, the impact and friction of the air flow on the louvers will also generate noise. Therefore, a cabinet for electrical equipment is needed. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a cabinet for electrical equipment to solve the technical problems mentioned in the above background art.

[0005] The technical solution of the utility model is as follows: A cabinet for electrical equipment includes a cabinet and two side plates symmetrically fixed on both sides of the cabinet. A number of ventilation holes are opened on both side plates. Fixed connection plates are respectively fixed on the opposite sides of the two side plates. A number of louver blades are movably connected in sequence from top to bottom inside the fixed connection plates. A noise reduction mechanism for reducing the noise generated by the air flow on the louvers is arranged on the side of the fixed connection plate close to the side plate;

[0006] The noise reduction mechanism includes sound-absorbing cotton fixed at the bottom of the louver blades. An arc-shaped pressing plate is fixedly connected to the side of the louver blades. One end of the arc-shaped pressing plate far from the louver blades is fixedly connected with a sound insulation gasket. One end of the sound insulation gasket far from the arc-shaped pressing plate is fixedly connected with a silica gel pad. One end of the silica gel pad far from the sound insulation gasket is fixedly connected with a connecting plate. One end of the connecting plate far from the silica gel pad is fixed on the side of the fixed connection plate.

[0007] Preferably, a protective pad is fixedly connected to the side of the fixed connection plate close to the louver blades, and the side of the protective pad is in contact with the side of the louver blades.

[0008] Preferably, a blade stabilizing mechanism for reducing the noise generated by the resonance effect of the louver blades is arranged on the side of the fixed connection plate close to the side plate.

[0009] Preferably, the blade stabilizing mechanism includes an arc-shaped abutting rod fixed on the side of the shutter blade away from the protective pad. An arc-shaped cylinder is provided at one end of the arc-shaped abutting rod away from the shutter blade. A semi-circular slider is fixedly connected to the outer wall of the arc-shaped abutting rod, and an arc-shaped rounded chute for the semi-circular slider to slide is provided on the inner wall of the arc-shaped cylinder.

[0010] Preferably, an elastic airbag is fixedly connected to one end of the arc-shaped abutting rod close to the arc-shaped cylinder, and one end of the elastic airbag away from the arc-shaped abutting rod is fixedly connected to the inner wall of the arc-shaped cylinder.

[0011] Preferably, a fixed cylinder rod is fixedly connected to one end of the arc-shaped cylinder away from the arc-shaped abutting rod. A transmission pipe is fixedly connected to the inside of the arc-shaped cylinder away from the arc-shaped abutting rod. Two ends of the transmission pipe are fixedly communicated with the inside of the elastic airbag and the fixed cylinder rod respectively.

[0012] Preferably, a piston is slidably sleeved in the inner cavity of the fixed cylinder rod. A spring is fixedly connected to the side of the piston, and one end of the spring away from the piston is fixedly connected to the inner wall of the fixed cylinder rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The present invention designs a noise reduction mechanism, which combines the principles of sound absorption, fluid dynamics and vibration isolation, effectively reducing the noise level generated during the air circulation of the cabinet, so that the cabinet can ensure sufficient ventilation volume while greatly reducing the noise, thereby improving the comfort and quietness of the cabinet use environment.

[0015] 2. The present invention designs a blade stabilizing mechanism. By setting the blade stabilizing mechanism, the resonance effect and noise generated during the operation and adjustment of the shutter blade can be effectively reduced, further improving the stability of the shutter blade and the comfort of the cabinet use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further describes the present invention in detail with reference to the drawings and specific embodiments.

[0017] Figure 1 is a schematic three-dimensional structure diagram proposed by the present invention;

[0018] Figure 2 is a schematic partial structure diagram proposed by the present invention;

[0019] Figure 3 is the Figure 2 sectional view and enlarged structure diagram proposed by the present invention;

[0020] Figure 4 is the Figure 3 partial sectional view and enlarged plan structure diagram proposed by the present invention;

[0021] Figure 5 Schematic diagram of the internal air flow structure of the cabinet proposed by the present utility model.

[0022] In the figure: 1, cabinet; 2, side plate; 3, ventilation hole; 4, airfoil frame; 5, louver blade; 6, noise reduction mechanism; 61, sound-absorbing cotton; 62, arc-shaped pressing plate; 63, sound insulation gasket; 64, silicone pad; 65, connecting plate; 7, stabilizing blade mechanism; 71, arc-shaped cylinder; 72, arc-shaped abutting rod; 73, elastic airbag; 74, fixed cylinder rod; 75, piston; 76, spring; 77, transmission pipe; 8, protective pad. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The cabinet for electrical equipment is usually a metal box specially designed for installing and protecting electronic equipment. These cabinets are widely used in various electronic equipment and systems, such as servers, network equipment, telecommunications equipment, industrial automation equipment, etc., to ensure the safe, stable operation and convenient maintenance of the equipment.

[0025] When the existing cabinet sucks air from one side louver and discharges it from the other side, noise will be generated. The main reason is that the air flow will form vortices and turbulence, and these turbulences will generate noise. Especially when the wind speed is relatively high, the impact and friction of the air flow on the louver will also generate noise. Please refer to Figures 1 - 5 , the embodiment provides a cabinet for electrical equipment, including a cabinet 1 and two side plates 2 symmetrically fixed on both sides of the cabinet 1. A plurality of ventilation holes 3 are opened on both side plates 2, and airfoil frames 4 are fixedly connected to the opposite sides of the two side plates 2. A plurality of louver blades 5 are movably connected in sequence from top to bottom inside the airfoil frames 4.

[0026] Reference Figure 3As shown, when air is inhaled from one side louver and discharged from the other side of the existing cabinet 1, noise will be generated. The main reason is that air flow will form vortices and turbulence, and these turbulences will generate noise. Especially when the wind speed is relatively high, the impact and friction of air flow on the louver will also generate noise. In order to enable the cabinet 1 to ensure sufficient ventilation volume while greatly reducing noise, the following settings are made. A noise reduction mechanism 6 for reducing the noise generated by air flow on the louver 5 is provided on one side of the louver frame 4 close to the side plate 2. The noise reduction mechanism 6 includes a sound-absorbing cotton 61 fixed to the bottom of the louver blade 5. An arc-shaped pressing plate 62 is fixedly connected to the side of the louver blade 5. One end of the arc-shaped pressing plate 62 away from the louver blade 5 is fixedly connected to a sound insulation gasket 63, a gasket for reducing vibration conduction, which is made of rubber and can effectively isolate vibration and reduce noise transmission. One end of the sound insulation gasket 63 away from the arc-shaped pressing plate 62 is fixedly connected to a silica gel pad 64. One end of the silica gel pad 64 away from the sound insulation gasket 63 is fixedly connected to a connecting plate 65. One end of the connecting plate 65 away from the silica gel pad 64 is fixed to the side of the louver frame 4. When air flows through the cabinet 1, it passes through the sound-absorbing cotton 61 on the windward side of the louver blade 5. The sound-absorbing cotton 61 can effectively absorb the noise fluctuations generated during air flow, especially high-frequency noise. Since the louver blade 5 is movably arranged, the windward side of the louver blade 5 can be adjusted according to the situation of air flow. This design can reduce the resistance when air flows through, thereby reducing the turbulence and noise generated during air flow. As a result, the leeward side of the louver blade 5 will squeeze the sound insulation gasket 63 and the silica gel pad 64 in sequence through the arc-shaped pressing plate 62 for noise reduction. The arc-shaped pressing plate 62 on the leeward side will squeeze the sound insulation gasket 63 and the silica gel pad 64, and these materials can effectively isolate and reduce the noise generated by the vibration inside the cabinet 1 from being transmitted to the outside.

[0027] Reference Figure 4 As shown, a protective pad 8 is fixedly connected to one side of the louver frame 4 close to the louver blade 5. The protective pad 8 is made of sponge material. The side of the protective pad 8 is in contact with the side of the louver blade 5. When the louver blade 5 is reset, the protective pad 8 is in contact with the louver blade 5, which can further reduce noise generation while protecting the louver blade 5.

[0028] Reference Figure 4As shown in the figure, a blade stabilizing mechanism 7 for reducing the noise generated by the resonance effect of the louver blades 5 is provided on one side of the blade frame 4 close to the side plate 2. The blade stabilizing mechanism 7 includes an arc-shaped abutting rod 72 fixed to the side of the louver blade 5 away from the protective pad 8. One end of the arc-shaped abutting rod 72 away from the louver blade 5 is provided with an arc-shaped cylinder 71. The outer wall of the arc-shaped abutting rod 72 is fixedly connected with a semi-circular slider. The inner wall of the arc-shaped cylinder 71 is provided with an arc-shaped rounded chute for the semi-circular slider to slide. One end of the arc-shaped abutting rod 72 close to the arc-shaped cylinder 71 is fixedly connected with an elastic airbag 73. One end of the elastic airbag 73 away from the arc-shaped abutting rod 72 is fixedly connected with the inner wall of the arc-shaped cylinder 71. One end of the arc-shaped cylinder 71 away from the arc-shaped abutting rod 72 is fixedly connected with a fixed cylinder rod 74. Inside the arc-shaped cylinder 71 at the end away from the arc-shaped abutting rod 72, a transmission pipe 77 is fixedly connected. The two ends of the transmission pipe 77 are fixedly communicated with the inside of the elastic airbag 73 and the fixed cylinder rod 74 respectively. A piston 75 is slidably sleeved in the inner cavity of the fixed cylinder rod 74. The side of the piston 75 is fixedly connected with a spring 76. One end of the spring 76 away from the piston 75 is fixedly connected with the inner wall of the fixed cylinder rod 74. When the windward surface of the louver blade 5 is adjusted according to the air flow situation, the arc-shaped abutting rod 72 is inserted into the arc-shaped cylinder 71 to squeeze the elastic airbag 73. The design of the elastic airbag 73 can absorb and disperse sudden pressure changes, such as shock waves generated by changes in wind speed or wind direction, thereby reducing the impact of these pressure changes on the vibration of the louver blade 5 itself. The gas in the elastic airbag 73 is introduced into the fixed cylinder rod 74 through the transmission pipe 77. This design enables the gas to be effectively transmitted and adjusted when the pressure changes, avoiding the vibration or resonance effect of the louver blade 5 caused by sudden pressure changes, and thus reducing the possible generated noise. The entry of the gas pushes the piston 75 to squeeze the spring 76. The function of the spring 76 is to provide a reaction force when the gas pressure is released or changes, to stabilize the movement of the piston 75, ensure the smoothness and accuracy when the louver blade 5 is adjusted, and at the same time reduce sudden vibrations and noises.

[0029] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cabinet for electrical equipment, comprising a cabinet (1) and two side panels (2) symmetrically fixed on both sides of the cabinet (1), the two side panels (2) being provided with a plurality of ventilation holes (3), the opposite sides of the two side panels (2) being fixedly connected with a leaf mounting frame (4), the interior of the leaf mounting frame (4) being movably connected with a plurality of shutter sheets (5) in sequence from top to bottom, characterized in that: A noise reduction mechanism (6) for reducing the noise generated by air flow on the louver sheet (5) is provided on one side of the louver frame (4) close to the side plate (2); The noise reduction mechanism (6) comprises a sound-absorbing cotton (61) fixed to the bottom of the louver sheet (5); a curved pressure plate (62) is fixedly connected to the side of the louver sheet (5); an end of the curved pressure plate (62) away from the louver sheet (5) is fixedly connected to a sound insulation gasket (63); an end of the sound insulation gasket (63) away from the curved pressure plate (62) is fixedly connected to a silicone pad (64); an end of the silicone pad (64) away from the sound insulation gasket (63) is fixedly connected to a connecting plate (65); and an end of the connecting plate (65) away from the silicone pad (64) is fixed to the side of the leaf mounting frame (4).

2. A cabinet for electrical equipment according to claim 1, characterized in that: A protective pad (8) is fixedly connected to one side of the leaf mounting frame (4) close to the shutter sheet (5), and a side surface of the protective pad (8) is in contact with a side surface of the shutter sheet (5).

3. A cabinet for electrical equipment according to claim 1, characterized in that: A leaf stabilizing mechanism (7) for reducing noise generated by the resonance effect of the louver sheet (5) is provided on one side of the leaf mounting frame (4) close to the side plate (2).

4. A cabinet for electrical equipment according to claim 3, characterized in that: The leaf stabilizing mechanism (7) comprises an arc-shaped support rod (72) fixed to a side of the shutter sheet (5) away from the protective pad (8); an arc-shaped cylinder (71) is provided at one end of the arc-shaped support rod (72) away from the shutter sheet (5); a semicircular slider is fixedly connected to the outer wall of the arc-shaped support rod (72); and an arc-shaped rounded sliding groove for sliding the semicircular slider is provided on the inner wall of the arc-shaped cylinder (71).

5. A cabinet for electrical equipment according to claim 4, characterized in that: One end of the arc-shaped supporting rod (72) close to the arc-shaped cylinder (71) is fixedly connected to an elastic airbag (73), and one end of the elastic airbag (73) away from the arc-shaped supporting rod (72) is fixedly connected to the inner wall of the arc-shaped cylinder (71).

6. A cabinet for electrical equipment according to claim 4, characterized in that: One end of the arc-shaped cylinder (71) away from the arc-shaped support rod (72) is fixedly connected to a fixed cylinder rod (74), and the interior of one end of the arc-shaped cylinder (71) away from the arc-shaped support rod (72) is fixedly connected to a transmission tube (77), and both ends of the transmission tube (77) are respectively fixedly connected to the interior of the elastic airbag (73) and the fixed cylinder rod (74).

7. A cabinet for electrical equipment according to claim 6, characterized in that: The inner cavity sliding sleeve of the fixing barrel rod (74) is provided with a piston (75), a side surface of the piston (75) is fixedly connected to a spring (76), and one end of the spring (76) away from the piston (75) is fixedly connected to the inner wall of the fixing barrel rod (74).

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