Oil-free sound insulation air compressor
By installing a bypass door and a V-shaped partition in the oil-free air compressor, the problem of easy clogging of the inlet filter and noise leakage is solved, and the effects of stabilizing the air intake and reducing noise are achieved.
Patent Information
- Application Number
- CN202420844239.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-23
AI Technical Summary
The imported filter of existing oil-free air compressors is easily blocked, resulting in a decrease in the intake volume and the noise is prone to leakage, resulting in high operating noise.
Design an oil-free soundproof air compressor, including a compressor main unit, an air filter and a soundproof cover. A bypass door is set between the cooling air duct and the air intake duct, and V-shaped partitions are set on both sides of the air intake duct to block noise.
Air is extracted from the cooling duct through the bypass door to avoid a drop in air intake, reduce noise leakage, and improve sound insulation.
Smart Images
Figure CN222376646U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air compression, in particular to an oil-free soundproof air compressor. Background Art
[0002] The existing oil-free air compressor has an air inlet designed as an independent air duct, with an inlet door plate and an inlet filter located on the outside of the inlet door plate, so that the inlet filter can be used to filter the air entering the oil-free air compressor during operation to remove impurities in the air. However, the inlet filter is prone to clogging, resulting in a reduction in the air intake area of the air inlet, which in turn leads to a decrease in the air intake volume of the compression host at the rear end of the oil-free air compressor. In order to ensure that the air intake volume of the compression host remains unchanged, that is, to maintain the negative pressure at the air inlet of the compression host unchanged, either the suction force is increased, and the inlet door plate is easily sucked flat and deformed due to the increased suction force; or the inlet filter is cleaned in time, increasing the maintenance workload.
[0003] In addition, during the operation of the existing oil-free air compressor, noise is easily leaked, resulting in high operating noise. Utility Model Content
[0004] In order to solve the problem that the air intake of the compression main unit at the rear end of the existing oil-free air compressor is easily reduced due to the clogging of the inlet filter, the utility model proposes an oil-free soundproof air compressor, which includes a compression main unit, an air filter and a soundproof cover, wherein the air filter is located above the compression main unit and is connected to the air inlet of the compression main unit;
[0005] The soundproof cover covers the compression main unit and the air filter, and is provided with adjacent air intake ducts and cooling air ducts, wherein the air intake duct is close to the inlet of the air filter; an electric control box is installed in the cooling air duct, and a bypass door connecting the cooling air duct and the air intake duct is provided between the cooling air duct and the air intake duct, and the bypass door is close to the bottom of the electric control box.
[0006] The utility model discloses an oil-free soundproof air compressor, a bypass door is arranged between the cooling air duct and the air intake duct, when the filter at the air intake port of the air intake duct is clogged, air can be drawn from the cooling air duct through the bypass door and sent to the compressor main unit, so as to avoid the air intake volume of the compressor main unit from decreasing; at the same time, it can avoid the suction force of the compressor main unit from becoming larger, thereby preventing the filter at the air intake port from being sucked and deformed due to the increased suction force of the compressor main unit.
[0007] Preferably, a bypass door sealing plate is provided at the bypass door. In this way, a bypass door sealing plate is provided at the bypass door, and the bypass door can be opened or closed as needed during the operation of the oil-free soundproof air compressor of the utility model. Furthermore, electric control rails are provided on both sides of the bypass door, and the bypass door sealing plate is installed on the electric control rails and is closed or opened under the drive of the electric control rails. In this way, during the operation of the oil-free soundproof air compressor of the utility model, the bypass door sealing plate can be driven by the electric control rails to move to close or open the bypass door, and the automatic opening and closing of the automatic bypass door is simple and convenient to use and control.
[0008] Preferably, two partitions are provided on both sides of the air intake duct, and the two partitions are relatively arranged on both sides of the air intake duct to form a V-shaped air intake duct, the small opening of the V-shaped air intake duct is close to the air inlet of the air intake duct, the large opening of the V-shaped air intake duct is close to the inlet of the air filter, and the cross-sectional area of the small opening of the V-shaped air intake duct is larger than the cross-sectional area of the air inlet. In this way, during the operation of the oil-free soundproof air compressor of the utility model, the partition can be used to block the noise leaked from the compression host from being transmitted through the air intake duct, thereby improving the sound insulation and noise reduction effect of the oil-free soundproof air compressor of the utility model. Furthermore, sound insulation cotton is provided on both sides of the partition. In this way, sound insulation cotton is provided on both sides of the partition, which can further improve the sound insulation and noise reduction effect of the oil-free soundproof air compressor of the utility model.
[0009] Preferably, the inner walls of the cooling air duct and the air inlet air duct are both provided with a sound insulation layer. In this way, the sound insulation layer is provided on the inner walls of the cooling air duct and the air inlet air duct, and the noise leaked from the compression main unit can be weakened by the sound insulation layer, thereby improving the sound insulation and noise reduction effect of the oil-free soundproof air compressor of the utility model.
[0010] Preferably, the soundproof cover is provided with an air inlet filter and an air inlet filter, the air inlet filter is installed at the air inlet of the cooling air duct, the air inlet filter is installed at the air inlet of the air inlet duct, and the air inlet filter and the air inlet filter are both composed of a skeleton and a filter. In this way, the air inlet filter and the air inlet filter are composed of a skeleton and a filter, and have a large structural strength, which can extend the service life of the air inlet filter and the air inlet filter, and improve the reuse rate of the air inlet filter and the air inlet filter. Further, the skeleton is composed of a stainless steel frame and an aluminum edge seal, and the filter is formed by winding a composite nano material. In this way, the skeleton of the air inlet filter and the air inlet filter is formed by a stainless steel frame and an aluminum edge seal, which can further extend the service life of the air inlet filter and the air inlet filter; the filter is formed by winding a composite nano material on the skeleton in multiple layers, which can not only ensure the filtering accuracy of the filter, but also can be used for blowing, thereby improving the aesthetics and durability of the filter. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the structure of the oil-free soundproof air compressor of the utility model;
[0012] Figure 2 This is a schematic diagram of the structure of the oil-free soundproof air compressor of the utility model when the cooling door plate and the air intake door plate are removed;
[0013] Figure 3 The utility model is a structural schematic diagram of the oil-free soundproof air compressor when the cooling door plate, the air intake door plate and the bypass door sealing plate are removed. DETAILED DESCRIPTION
[0014] Next, combine Figures 1 to 3 , the utility model oil-free soundproof air compressor is described in detail.
[0015] like Figures 1 to 3As shown, the utility model oil-free soundproof air compressor includes a compression main unit (not shown in the figure), an air filter (not shown in the figure), a soundproof cover 1, an electric control box 2 and a heat dissipation fan 3. Among them, the air filter is located above the compression main unit and is connected to the air inlet of the compression main unit. Preferably, the air filter element of the air filter is folded by nano materials. In this way, the air intake area of the air filter can be increased, and the noise reduction and dust removal can be played. The soundproof cover 1 covers the compression main unit and the air filter, and the side of the soundproof cover 1 is provided with an air intake duct 11 and a cooling duct 12. The air intake duct 11 is close to the inlet of the air filter, and the air in the air intake duct 11 enters the air filter through the inlet of the air filter and then enters the compression main unit for compression processing; the cooling duct 12 is used to install the electric control box 2 and the heat dissipation fan 3, and the heat dissipation fan 3 is located above the electric control box 2, so as to use the air entering the cooling duct 12 to take away the heat generated by the electric control box 2, improve the heat dissipation effect of the electric control box 2, and effectively protect the electrical appliances in the electric control box 2. The cooling air duct 12 is arranged adjacent to the air intake duct 11, and a bypass door 13 connecting the cooling air duct 12 and the air intake duct 11 is arranged between the cooling air duct 12 and the air intake duct 11, and the bypass door 13 is close to the bottom of the electric control box 2. In this way, during the oil-free soundproof operation of the utility model, when the filter at the air inlet of the air intake duct 11 is blocked, air can be drawn from the cooling air duct 12 through the bypass door 13 and sent to the compressor main unit to avoid a decrease in the air intake of the compressor main unit, and at the same time, it can avoid the suction force of the compressor main unit from becoming larger, thereby avoiding the filter at the air inlet from being sucked flat and deformed due to the increased suction force of the compressor main unit. Preferably, a bypass door sealing plate 14 is arranged at the bypass door 13. In this way, the bypass door sealing plate 14 is arranged at the bypass door 13, and the bypass door 13 can be opened or closed as needed during the operation of the oil-free soundproof air compressor of the utility model. Preferably, electric control rails 15 are provided on both sides of the bypass door 13, and the bypass door sealing plate 14 is installed on the electric control rails 15 and is driven by the electric control rails 15 to close or open the bypass door 13. In this way, during the operation of the oil-free soundproof air compressor of the utility model, the electric control rails 15 can be used to drive the bypass door sealing plate 14 to move to close or open the bypass door 13, and the automatic opening and closing of the automatic bypass door 13 is simple and convenient to use and control. Preferably, two partitions 111 are provided on both sides of the air intake duct 11, and the two partitions 111 are relatively arranged on both sides of the air intake duct 11 to form a V-shaped air intake duct, the small opening of the V-shaped air intake duct is close to the air inlet of the air intake duct 11, the large opening of the V-shaped air intake duct is close to the inlet of the air filter, and the cross-sectional area of the small opening of the V-shaped air intake duct is larger than the cross-sectional area of the air intake duct. In this way, during the operation of the oil-free soundproof air compressor of the utility model, the partition 111 can be used to block the noise leaked from the compression main unit from being transmitted through the inlet flow channel, thereby improving the sound insulation and noise reduction effect of the oil-free soundproof air compressor of the utility model. Preferably, sound insulation cotton is provided on both sides of the partition 111 (not shown in the figure).In this way, sound insulation cotton is arranged on both the front and back sides of the partition 111, which can further improve the sound insulation and noise reduction effect of the oil-free soundproof air compressor of the utility model. Preferably, the sound insulation cotton can be pasted on both the front and back sides of the partition 111. Preferably, a sound insulation layer (not shown in the figure) is arranged on the inner walls of the cooling air duct 12 and the air intake air duct 11. In this way, sound insulation layers are arranged on the inner walls of the cooling air duct 12 and the air intake air duct 11, and the sound insulation layer can be used to weaken the noise leaked from the compression main unit, thereby improving the sound insulation and noise reduction effect of the oil-free soundproof air compressor of the utility model. When the oil-free soundproof air compressor of the utility model is specifically implemented, sound insulation materials such as sound insulation cotton can be pasted on the inner walls of the cooling air duct 12 and the air intake air duct 11 to form a sound insulation layer.
[0016] like Figure 1 As shown, the soundproof cover 1 is provided with an air inlet filter 16 and an air inlet filter 17. The air inlet filter 16 is mounted on the cooling door plate 18 and is located at the air inlet of the cooling air duct 12. The air inlet filter 17 is mounted on the air inlet door plate 19 and is located at the air inlet of the air inlet duct 11. The air inlet filter 16 and the air inlet filter 17 are both composed of a frame (not shown in the figure) and a filter (not shown in the figure). In this way, the air inlet filter 16 and the air inlet filter 17 are composed of a frame and a filter, and have a high structural strength, which can extend the service life of the air inlet filter 16 and the air inlet filter 17 and improve the reuse rate of the air inlet filter 16 and the air inlet filter 17. Preferably, the frame is composed of a stainless steel frame and an aluminum edge seal, and the filter is formed by winding a composite nano material. In this way, the stainless steel frame and aluminum edge sealing are used to form the skeleton of the air inlet filter 16 and the air inlet filter 17, which can further extend the service life of the air inlet filter 16 and the air inlet filter 17; the filter is formed by winding multiple layers of composite nano materials on the skeleton, which can not only ensure the filtering accuracy of the filter, but also can be used for blowing, thereby improving the aesthetics and durability of the filter.
[0017] During the operation of the oil-free soundproof air compressor of the utility model, when the filter at the air inlet of the air intake duct is clogged, the pressure difference detected by the air sensor at the air filter inlet in real time increases. Once the pressure difference increases to the set threshold, the electric control system in the electric control box controls the electric control rail to drive the bypass door sealing plate to move to open the bypass door, increase the air intake area, and prevent the air intake filter from being sucked flat and deformed due to the increased suction force; at the same time, air is drawn from the cooling air duct through the bypass door and sent to the compression main unit, which can take away part of the heat generated by the electric control box, improve the heat dissipation effect of the electric control box, and effectively protect the electrical appliances in the electric control box. In addition, an early warning device is set in the electric control box, so that when the pressure difference at the air filter inlet increases to the set threshold, the early warning device sends a warning signal to remind the user to clean the filter and air filter in time to prevent the filter and air filter from being sucked flat.
Claims
1. An oil-free soundproof air compressor, characterized in that: The oil-free soundproof air compressor comprises a compression main unit, an air filter and a soundproof cover, wherein the air filter is located above the compression main unit and is connected to the air inlet of the compression main unit; The soundproof cover covers the compression main unit and the air filter, and is provided with adjacent air intake ducts and cooling air ducts, wherein the air intake duct is close to the inlet of the air filter; an electric control box is installed in the cooling air duct, and a bypass door connecting the cooling air duct and the air intake duct is provided between the cooling air duct and the air intake duct, and the bypass door is close to the bottom of the electric control box.
2. The oil-free soundproof air compressor according to claim 1, characterized in that: The bypass door is provided with a bypass door sealing plate.
3. The oil-free soundproof air compressor according to claim 2, characterized in that: Electric control rails are arranged on both sides of the bypass door, and the bypass door sealing plate is installed on the electric control rails and is driven by the electric control rails to close or open the bypass door.
4. The oil-free soundproof air compressor according to any one of claims 1 to 3, characterized in that: Two partitions are arranged on both sides of the air intake duct, and the two partitions are arranged relatively on both sides of the air intake duct to form a V-shaped air intake duct, the small opening of the V-shaped air intake duct is close to the air intake port of the air intake duct, the large opening of the V-shaped air intake duct is close to the inlet of the air filter, and the cross-sectional area of the small opening of the V-shaped air intake duct is larger than the cross-sectional area of the air intake port.
5. The oil-free soundproof air compressor according to claim 4, characterized in that: Sound insulation cotton is arranged on both the front and back sides of the partition.
6. The oil-free soundproof air compressor according to claim 4, characterized in that: The inner walls of the cooling air duct and the air intake air duct are both provided with sound insulation layers.
7. The oil-free soundproof air compressor according to claim 4, characterized in that: The soundproof cover is provided with an air inlet filter and an air inlet filter. The air inlet filter is installed at the air inlet of the cooling air duct, and the air inlet filter is installed at the air inlet of the air inlet duct. The air inlet filter and the air inlet filter are both composed of a frame and a filter.
8. The oil-free soundproof air compressor according to claim 7, characterized in that: The skeleton is composed of a stainless steel frame and aluminum edge sealing, and the filter is formed by winding a composite nano material.