Low noise air compressor valve plate assembly and air compressor

Abstract

The utility model discloses a low -noise's air compressor valve plate subassembly and air compressor, wherein valve plate subassembly includes valve plate, the air inlet hole and exhaust hole of being opened in valve plate, install in the air inlet valve piece of air inlet hole outside covering of valve plate back, install in the exhaust valve piece of exhaust hole outside covering of valve plate front, valve plate is rectangular board, in valve plate subassembly plane, along Y and side by side is equipped with two exhaust holes, is equipped with two exhaust valve pieces corresponding two exhaust holes, and exhaust hole is the rectangular hole of extending along X, and the arc edge is symmetrically equipped with in rectangular length both ends, air inlet hole and exhaust hole stagger, air inlet hole is the waist shape hole, and air inlet hole is close to valve plate central region setting, is equipped with two air inlet holes corresponding each exhaust hole, and two air inlet holes are symmetrically set in X two sides, and two air inlet holes correspond from the middle to the extension of X two sides. The utility model discloses can be more effective to reduce exhaust and air intake noise.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air compressor technical field, concretely relates to air compressor valve plate assembly. BACKGROUND

[0002] The oil-injected piston air compressor for new energy commercial vehicles is a device that provides compressed air for the braking system and other systems of new energy commercial vehicles. Its advantages are relatively low cost, mature technology, and convenient maintenance. Its working principle is to suck and compress air through the reciprocating motion of the piston in the cylinder. In the field of commercial vehicles, the selection of oil-injected piston air compressors needs to consider factors such as the use environment of the vehicle, the load condition, and the requirements of the braking system. At the same time, in order to ensure the normal operation and service life of the air compressor, regular maintenance and maintenance are also required, including replacing lubricating oil, checking sealing parts, etc.

[0003] The main functions of the oil-injected piston air compressor valve plate assembly for commercial vehicles are as follows:

[0004] 1. Intake control: control the air entering the cylinder to ensure the appropriate amount of air entering the compression process.

[0005] 2. Exhaust control: make the compressed air smoothly exit the cylinder to ensure the normal working cycle of the air compressor.

[0006] 3. Sealing function: prevent gas leakage and improve the working efficiency of the air compressor.

[0007] 4. Pressure adjustment: adjust the pressure in the cylinder through the opening and closing of the valve plate to achieve the required compressed air pressure.

[0008] The valve plate assembly is a very important component in the oil-injected piston air compressor for commercial vehicles, and it has a significant impact on the performance and reliability of the air compressor. The valve plate assembly of the oil-injected piston air compressor is prone to wear and tear, and after long-term use, the frequent impact and friction between the valve plate and the valve piece may cause wear and tear, affecting the sealing performance and working efficiency. Because there is oil in the air compressor, oil stains may be carbonized and attached to the valve plate, affecting its normal operation and even causing failure. The decline in sealing performance will affect the air quality, and the compressed air discharged contains a small amount of oil, which will adversely affect some systems that require high air quality.

[0009] Moreover, the noise of the air compressor is mostly caused by the unreasonable design of the valve plate assembly or the lack of optimization, so a reasonable structure and shape are needed to reduce airflow impact and vibration and reduce noise generation. CONTENT OF THE UTILITY MODEL

[0010] The utility model discloses to solve the technical problem that the prior art lacks, and the technical problems that the utility model wants to solve are to provide a low -noise air compressor valve plate assembly, solve the unreasonable design of existing valve plate assembly, the airflow impact and vibration caused, cause the noise problem.

[0011] To solve the above technical problems, the utility model adopts the following technical scheme:

[0012] First, provide a kind of low-noise air compressor valve plate assembly, including valve plate, the air inlet hole and exhaust hole being opened in valve plate, install in the air inlet valve piece of air inlet hole outer side and cover in the exhaust valve piece of exhaust hole outer side and install in the front of valve plate, the exhaust valve piece is set with two exhaust holes in the plane of valve plate assembly, along Y and is provided with two exhaust holes, corresponding two exhaust valve pieces are provided, and the central region of exhaust hole corresponding exhaust valve piece is set, the exhaust hole is the rectangular hole along X extension, and the two ends of rectangular length are symmetrically provided with arc edge;The air inlet hole is staggered with exhaust hole, the air inlet hole is the waist-shaped hole, the air inlet hole is close to the central region of valve plate and is set, corresponding each exhaust hole is provided with two air inlet holes, two air inlet holes are symmetrically set in X two sides, and two air inlet holes extend from the middle corresponding to X two sides.

[0013] Preferably, the air inlet hole is 1.5mm to 2mm from the edge of the air inlet valve piece.

[0014] Preferably, the air inlet valve piece is made of 0.4mm stainless steel.

[0015] Preferably, the air inlet valve piece is fixed by the air inlet valve piece fixing piece.

[0016] Preferably, the exhaust valve piece surface is provided with exhaust valve piece lining plate.

[0017] Preferably, the valve plate assembly further comprises an exhaust limiter fixed to the outer side of the exhaust valve piece.

[0018] Preferably, the valve plate is provided with an exhaust limiter pad column, and the exhaust limiter is fixed on the exhaust limiter pad column by a limiter screw.

[0019] Preferably, the valve plate is made of aluminum alloy.

[0020] In addition, an air compressor is also provided, comprising a cylinder assembly and the valve plate assembly, and the valve plate assembly is fixed with the cylinder assembly.

[0021] Preferably, the edge of the valve plate is provided with a fixing hole, and a fixing screw connected with the cylinder assembly is connected to the fixing hole.

[0022] The utility model adopts the above technical scheme, and has the following beneficial effects:

[0023] The valve plate features an optimized design for the structure and layout of the air intake and exhaust ports. Structurally, the air intake port is an elongated, waist-shaped hole. Due to the special shape of the waist-shaped hole, the air intake is smoother, avoiding airflow impact and vibration caused by the intake. The exhaust port is a rectangular hole with symmetrical rounded edges at both ends of the rectangle. The exhaust port is relatively long, resulting in a large exhaust area and smooth exhaust. The rounded edges make the exhaust smoother, avoiding airflow impact and vibration caused by the exhaust.

[0024] In addition, regarding the layout of the air intake and exhaust ports, two exhaust ports are arranged side by side along the Y direction, and the exhaust ports are positioned in the central area of ​​the exhaust valve plate to ensure balanced exhaust force, which helps reduce exhaust noise. The two air intake ports are symmetrically arranged on both sides of the X direction to further ensure balanced exhaust force and reduce exhaust noise.

[0025] Therefore, this invention can more effectively reduce exhaust and intake noise.

[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0027] The utility model will be further described below with reference to the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the air compressor valve plate assembly of this utility model;

[0029] Figure 2 This is a plan view of the air compressor valve plate assembly of this utility model;

[0030] Reference numerals: Valve plate 1, Inlet port 101, Exhaust port 102, Exhaust valve plate 2, Exhaust valve plate liner 3, Exhaust limiter 4, Exhaust limiter pad 5, Positioning pin 6, Inlet valve plate 7, Inlet valve plate fixing plate 8, Fastening bolt 9.

Detailed Implementation Methods

[0031] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0032] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0033] The terms used in the present application are merely for the purpose of describing specific embodiments, and are not intended to limit the present application. For example, the words indicating the orientation or position relationship such as "X direction", "Y direction" and the like described below are merely based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application, which indicates or implies that the device / element must have a specific orientation or be constructed and operated in a specific orientation.

[0034] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0036] Referring to Figure 1 and Figure 2 The present application provides a low-noise air compressor valve plate assembly, which comprises a valve plate 1, an air inlet hole 101 and an air outlet hole 102 opened in the valve plate, an air inlet valve plate 7 installed on the back surface of the valve plate and covering the outer side of the air inlet hole, and an air outlet valve plate 2 installed on the front surface of the valve plate and covering the outer side of the air outlet hole. Wherein, the valve plate 1 is a rectangular plate, which is arranged in the plane of the valve plate assembly, the X direction is the width direction, the Y direction is the length direction, two air outlet holes 102 are arranged side by side along the Y direction, two air outlet valve plates 2 are arranged corresponding to the two air outlet holes, and the central region of the air outlet hole corresponding to the air outlet valve plate is arranged. The air outlet hole 102 is a rectangular hole extending along the X direction, and the two ends of the rectangular length are symmetrically provided with arc edges; the air inlet hole 101 is staggered with the air outlet hole 102, the air inlet hole 101 is a waist-shaped hole, and the air inlet hole 101 is arranged close to the central region of the valve plate. Two air inlet holes are arranged corresponding to each air outlet hole, the two air inlet holes are symmetrically arranged on the two sides of the X direction, and the two air inlet holes extend from the middle to the two sides of the X direction.

[0037] The structure and layout of the intake hole and the exhaust hole on the valve plate are optimized in the embodiment. In terms of structure, the intake hole is a waist-shaped long hole. Due to the special shape of the waist-shaped hole, the intake is more gentle, and the airflow impact and vibration caused by the intake are avoided. The exhaust hole is a rectangular hole, and the length of the rectangular hole is symmetrically provided with a circular arc edge at both ends. The length of the exhaust hole is relatively long, so the exhaust area is large, the exhaust is smooth, and the circular arc edge makes the exhaust more gentle, avoiding the airflow impact and vibration caused by the exhaust.

[0038] In addition, from the layout of the intake hole and the exhaust hole, two exhaust holes are provided side by side along the Y direction, and the exhaust holes are arranged corresponding to the central region of the exhaust valve plate, so as to ensure that the exhaust force is balanced, which is beneficial to reduce the exhaust noise. The two intake holes are symmetrically arranged on both sides in the X direction, which further ensures that the exhaust force is balanced, which is beneficial to reduce the exhaust noise.

[0039] Therefore, the exhaust and intake noise can be more effectively reduced.

[0040] Specifically, the intake hole 101 is 1.5 mm to 2 mm away from the edge of the intake valve plate. The intake valve plate 7 is made of 0.4 mm stainless steel. The intake valve plate 7 is fixed by the intake valve plate fixing plate 8.

[0041] Specifically, the exhaust valve plate can also be made of stainless steel, and the surface of the exhaust valve plate is provided with an exhaust valve plate lining plate 3. The exhaust hole 102 is 1.5 mm to 2 mm away from the edge of the exhaust valve plate. The back of the valve plate is connected with a positioning pin 6, which can be used for positioning the intake valve plate. The front of the valve plate is connected with a fastening bolt 9, which can be used for fixing the valve plate.

[0042] Further, the valve plate assembly further comprises an exhaust limiter 4 fixed to the outer side of the exhaust valve plate. The valve plate is provided with an exhaust limiter pad column 5, and the exhaust limiter 4 is fixed to the exhaust limiter pad column 5 by a limiter screw. The valve plate is made of aluminum alloy.

[0043] In addition, an air compressor is also provided, which comprises a cylinder assembly and a valve plate assembly. The valve plate assembly is fixed with the cylinder assembly. Specifically, the edge of the valve plate is provided with a fixing hole, and the fixing hole is connected with a fixing screw connected with the cylinder assembly.

[0044] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the above specific embodiments and the drawings. Any modification that does not deviate from the functional and structural principles of the utility model shall be included in the scope of the claims.

Claims

1. A low-noise air compressor valve plate assembly, comprising a valve plate, an inlet and an outlet formed therein on the valve plate, an inlet valve plate mounted on the back of the valve plate and covering the outside of the inlet, and an outlet valve plate mounted on the front of the valve plate and covering the outside of the outlet, characterized in that, The valve plate is a rectangular plate. On the plane of the valve plate assembly, two exhaust holes are arranged side by side along the Y direction. Two exhaust valve plates are provided corresponding to the two exhaust holes, and the exhaust holes are set in the central area of ​​the exhaust valve plates. The exhaust holes are rectangular holes extending along the X direction, and the two ends of the rectangle are symmetrically provided with arc edges. The air inlet holes are staggered from the exhaust holes. The air inlet holes are waist-shaped holes and are set close to the central area of ​​the valve plate. Two air inlet holes are provided corresponding to each exhaust hole. The two air inlet holes are symmetrically arranged on both sides of the X direction, and the two air inlet holes extend from the middle to both sides of the X direction.

2. The air compressor valve plate assembly according to claim 1, characterized in that, The distance between the air intake hole and the edge of the air intake valve plate is between 1.5mm and 2mm.

3. The air compressor valve plate assembly according to claim 1, characterized in that, The intake valve plate is made of 0.4mm stainless steel.

4. The air compressor valve plate assembly according to claim 1, characterized in that, The intake valve plate is fixed by an intake valve plate fixing plate.

5. The air compressor valve plate assembly according to claim 1, characterized in that, The surface of the exhaust valve plate is provided with an exhaust valve plate liner.

6. The air compressor valve plate assembly according to claim 1, characterized in that, The valve plate assembly also includes an exhaust limiter fixed to the outside of the exhaust valve plate.

7. The air compressor valve plate assembly according to claim 6, characterized in that, The valve plate is provided with an exhaust limiter pad, and the exhaust limiter is fixed to the exhaust limiter pad with a limiter screw.

8. The air compressor valve plate assembly according to claim 1, characterized in that, The valve plate is made of aluminum alloy.

9. An air compressor, characterized in that, It includes a cylinder assembly and a valve plate assembly as described in any one of claims 1 to 8, wherein the valve plate assembly is fixed to the cylinder assembly.

10. The air compressor according to claim 9, characterized in that, The valve plate has a fixing hole on its edge, and the fixing hole is connected to a fixing screw for connecting to the cylinder assembly.

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