阅读说明：本技术 气缸座、压缩机及冰箱 (Cylinder block, compressor and refrigerator ) 是由 何杰伟 陈娟娟 冯海 莫子扬 邓聪聪 于 2020-05-25 设计创作，主要内容包括：本发明提供一种气缸座、压缩机及冰箱,气缸座包括：至少两个曲轴孔,至少两个曲轴孔均用于安装曲轴件,不同曲轴孔内的曲轴件能够独立旋转；气缸,气缸数量与曲轴孔数量相等,且位置与曲轴孔一一对应,不同曲轴孔内的曲轴件独立旋转时,带动对应的气缸内的活塞运行,气缸进行独立压缩。本发明的气缸座,设计有至少两个独立的曲轴孔及气缸,能够使用多电机同时、交替驱动,实现多缸的独立控制,采用这种气缸座的压缩机座能够实现单缸单级、多缸单级、多缸多级的工作模式,从而使制冷系统具有多级独立温控功能。多缸多级的工作模式下,制冷系统还能实现零下33℃以下的深冻,制冷系统的能效更高。(The invention provides a cylinder block, a compressor and a refrigerator, wherein the cylinder block comprises: the crankshaft holes are used for mounting crankshaft pieces, and the crankshaft pieces in different crankshaft holes can rotate independently; the number of the cylinders is equal to that of the crankshaft holes, the positions of the cylinders correspond to the crankshaft holes one to one, when crankshaft pieces in different crankshaft holes rotate independently, pistons in the corresponding cylinders are driven to operate, and the cylinders compress independently. The cylinder seat is provided with at least two independent crankshaft holes and cylinders, can be driven by multiple motors simultaneously and alternately to realize independent control of multiple cylinders, and the compressor seat adopting the cylinder seat can realize the working modes of single-cylinder single-stage, multiple-cylinder single-stage and multiple-cylinder multiple-stage, so that a refrigeration system has a multi-stage independent temperature control function. Under the multi-cylinder multi-stage working mode, the refrigeration system can realize deep freezing below 33 ℃ below zero, and the refrigeration system has higher energy efficiency.)

1. A cylinder block, comprising:

at least two crankshaft holes (1), wherein the at least two crankshaft holes (1) are used for installing crankshaft pieces (3), and the crankshaft pieces (3) in different crankshaft holes (1) can rotate independently;

the number of the cylinders (2) is equal to that of the crankshaft holes (1), the positions of the cylinders correspond to the crankshaft holes (1) one by one, when crankshaft pieces (3) in the crankshaft holes (1) rotate independently, corresponding pistons (4) in the cylinders (2) are driven to operate, and the cylinders (2) are compressed independently.

2. The cylinder block according to claim 1, characterized in that it comprises a floor plate (5).

3. The cylinder block according to claim 2, characterized in that the at least two crankshaft holes (1) comprise a first crankshaft hole (1-1) and a second crankshaft hole (1-2), the cylinder (2) comprises a first cylinder (2-1) and a second cylinder (2-2), the first and second crankshaft holes (1-1, 1-2) are arranged side by side on a central axis of the bottom plate member (5), the first cylinder (2-1) is arranged in a direction of the first crankshaft hole (1-1) away from the second crankshaft hole (1-2), and the second cylinder (2-2) is arranged in a direction of the second crankshaft hole (1-2) away from the first crankshaft hole (1-1).

4. The cylinder block according to claim 3, characterized in that the centre axis of the first cylinder (2-1) has an offset x1 from the centre axis of the floor element (5), and the centre axis of the second cylinder (2-2) has an offset x2 from the centre axis of the floor element (5).

5. The cylinder block according to claim 4, characterized in that the offset x1 is in the opposite direction to the direction of rotation of the crankshaft piece (3) in the first crankshaft bore (1-1) and/or the offset x2 is in the opposite direction to the direction of rotation of the crankshaft piece (3) in the second crankshaft bore (1-2).

6. The cylinder block of claim 4, wherein said offset distance x1 is equal and opposite to said offset distance x 2.

7. The cylinder block of claim 6, wherein the offset distance x1 is 1.8-2.1 mm as the offset distance x 2.

8. The cylinder block according to claim 6, characterized in that the first cylinder (2-1) comprises a first degassing chamber (6), which first degassing chamber (6) is arranged on the opposite side of the direction of offset of the first cylinder (2-1) with respect to the centre axis of the floor element (5); and/or the second cylinder (2-2) comprises a second exhaust cavity (7), and the second exhaust cavity (7) is arranged on the opposite side of the offset direction of the second cylinder (2-2) relative to the central axis of the bottom plate piece (5).

9. The cylinder block according to any of claims 2-8, characterized in that the floor member (5) comprises a first plate surface (5-1) on which the cylinder (2) is mounted, and a second plate surface (5-2) opposite to the first plate surface (5-1), and the second plate surface (5-2) is provided with stator mounting feet (8).

10. The cylinder block according to claim 9, characterized in that said stator mounting feet (8) are six, said six stator mounting feet (8) being arranged according to a regular rectangle.

11. A compressor, characterized in that a cylinder block according to any one of claims 1-10 is used.

12. A refrigerator, characterized in that a cylinder block according to any one of claims 1 to 10 is used.

Technical Field

The invention belongs to the technical field of refrigeration, and particularly relates to an air cylinder seat, a compressor and a refrigerator system.

Background

With the continuous improvement of living standard and quality, the refrigerator product has the application requirements of independent temperature control, deep freezing below minus 33 ℃, high efficiency and the like. For the requirement of independent temperature control, the refrigeration system of the refrigerator is required to have the capability of providing a plurality of evaporation pressures, and the compressor is required to have a plurality of compression performances.

The existing double-cylinder compressor can not realize the independent control of double cylinders.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is that the existing double-cylinder compressor cannot realize the independent control of double cylinders, so that the cylinder seat, the compressor and the refrigerator are provided.

In order to solve the above problems, the present invention provides a cylinder block including:

the crankshaft holes are used for mounting crankshaft pieces, and the crankshaft pieces in different crankshaft holes can rotate independently;

the number of the cylinders is equal to that of the crankshaft holes, the positions of the cylinders correspond to the crankshaft holes one to one, when crankshaft pieces in different crankshaft holes rotate independently, pistons in the corresponding cylinders are driven to operate, and the cylinders compress independently.

The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.

Preferably, the cylinder block comprises a floor plate member.

Preferably, the at least two crankshaft holes include a first crankshaft hole and a second crankshaft hole, the cylinder includes a first cylinder and a second cylinder, the first crankshaft hole and the second crankshaft hole are arranged on the central axis of the bottom plate member in parallel, the first cylinder is arranged in the direction in which the first crankshaft hole is far away from the second crankshaft hole, and the second cylinder is arranged in the direction in which the second crankshaft hole is far away from the first crankshaft hole.

Preferably, the central axis of the first cylinder is offset from the central axis of the floor member by x1, and the central axis of the second cylinder is offset from the central axis of the floor member by x 2.

Preferably, the offset x1 is in the opposite direction to the rotation of the crankshaft element in the first crankshaft bore and/or the offset x2 is in the opposite direction to the rotation of the crankshaft element in the second crankshaft bore.

Preferably, offset x1 is equal and opposite to offset x 2.

Preferably, the offset distance x1 is 1.8-2.1 mm as the offset distance x 2.

Preferably, the first cylinder includes a first exhaust chamber provided on a side opposite to an offset direction of the first cylinder with respect to the central axis of the floor member; and/or the second cylinder comprises a second exhaust cavity, and the second exhaust cavity is arranged on the opposite side of the offset direction of the second cylinder relative to the central axis of the bottom plate piece.

Preferably, the bottom plate piece is equipped with the stator installation foot including the first face of installing the cylinder, the second face relative with first face on the second face.

Preferably, the number of the stator mounting feet is six, and the six stator mounting feet are arranged according to a regular rectangle.

A compressor adopts foretell cylinder block.

A refrigerator adopts the cylinder seat.

The cylinder seat, the compressor and the refrigerator provided by the invention at least have the following beneficial effects:

the cylinder seat is provided with at least two independent crankshaft holes and cylinders, can be driven by multiple motors simultaneously and alternately to realize independent control of multiple cylinders, and the compressor seat adopting the cylinder seat can realize the working modes of single-cylinder single-stage, multiple-cylinder single-stage and multiple-cylinder multiple-stage, so that a refrigeration system has a multi-stage independent temperature control function. Under the multi-cylinder multi-stage working mode, the refrigeration system can realize deep freezing below 33 ℃ below zero, and the refrigeration system has higher energy efficiency.

Drawings

FIG. 1 is a schematic structural view of a cylinder block according to an embodiment of the present invention;

fig. 2 is a structural plan view of a cylinder block according to an embodiment of the present invention.

The reference numerals are represented as:

1. a crankshaft bore; 1-1, a first crankshaft bore; 1-2, a second crankshaft hole; 2. a cylinder; 2-1, a first cylinder; 2-2, a second cylinder; 3. a crankshaft piece; 4. a piston; 5. a floor member; 5-1, a first plate surface; 5-2, second plate surface; 6. a first exhaust cavity; 7. a second exhaust chamber; 8. stator mounting feet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 2, an embodiment of the present invention provides a cylinder block, including: the crankshaft piece 3 can rotate independently in different crankshaft holes 1; the number of the cylinders 2 is equal to that of the crankshaft holes 1, the positions of the cylinders 2 correspond to the crankshaft holes 1 one by one, the axis of each crankshaft hole 1 is perpendicular to that of the corresponding cylinder 2, when the crankshaft pieces 3 in different crankshaft holes 1 rotate independently, the corresponding piston 4 in the corresponding cylinder 2 is driven to operate, and the cylinders 2 compress independently.

The cylinder seat provided by the embodiment of the invention is provided with at least two independent crankshaft holes and cylinders, multiple motors can be used for driving simultaneously and alternately, and independent control of multiple cylinders is realized. Under the multi-cylinder multi-stage working mode, the refrigeration system can realize deep freezing below 33 ℃ below zero, and the refrigeration system has higher energy efficiency.

Preferably, the cylinder block comprises a bottom plate member 5, the at least two crankshaft holes 1 comprise a first crankshaft hole 1-1 and a second crankshaft hole 1-2, the cylinder 2 comprises a first cylinder 2-1 and a second cylinder 2-2, the first crankshaft hole 1-1 and the second crankshaft hole 1-2 are arranged on the central axis of the bottom plate member 5 in parallel, the first cylinder 2-1 is arranged in the direction that the first crankshaft hole 1-1 is far away from the second crankshaft hole 1-2, and the second cylinder 2-2 is arranged in the direction that the second crankshaft hole 1-2 is far away from the first crankshaft hole 1-1. The design of arranging the two cylinders in parallel along the length direction of the cylinder block is favorable for ensuring the overall compactness of the compressor, and the stability of the compressor cannot be greatly influenced when the two motors work independently.

Preferably, in order to overcome the phenomenon of the crankshaft member jamming at the upper and lower dead points during the rotation reciprocating motion, the central axis of the first cylinder 2-1 has an offset x1 from the central axis of the bottom plate member 5, the central axis of the second cylinder 2-2 has an offset x2 from the central axis of the bottom plate member 5, the offset x1 is equal to the offset x2 and opposite in direction, and the offset x1 is required to be opposite in direction to the rotation direction of the crankshaft member in the first crankshaft hole 1-1, and/or the offset x2 is required to be opposite in direction to the rotation direction of the crankshaft member in the second crankshaft hole.

The magnitude of the offset affects the pressure of the piston against the cylinder sidewall during compression, thereby reducing friction. The offset distance x1 is 1.8-2.1 mmm, and the most preferable offset distance x1 is 1.95mm, and the offset distance x2 is 1.95 mm.

Preferably, the first cylinder 2-1 includes a first exhaust chamber 6, and the first exhaust chamber 6 is provided on the opposite side of the offset direction of the first cylinder 2-1 with respect to the central axis of the floor member 5; and/or the second cylinder 2-2 comprises a second exhaust cavity 7, and the second exhaust cavity 7 is arranged on one side of the second cylinder 2-2 opposite to the offset direction of the central axis of the bottom plate part 5, so that the two exhaust cavities are designed diagonally in the cylinder block, and the stability of the whole compressor in the running process of the compressor is improved.

Preferably, the bottom plate member 5 comprises a first plate surface 5-1 provided with the cylinder 2, and a second plate surface 5-2 opposite to the first plate surface 5-1, and the second plate surface 5-2 is provided with a stator mounting foot 8. Because the cylinder block of this embodiment has the diplopore double-cylinder, and overall dimension and weight are great, therefore stator installation foot 8 is six, and six stator installation feet 8 are arranged according to the rectangle of rule, and the axis of rectangle and the axis coincidence of bottom plate spare 5 to be favorable to technology processing, and guarantee the stability of compressor core.

The cylinder block of this embodiment, after assembling two independent motors, can independently drive different bent axle spare and carry out rotary motion, drive two piston reciprocating motion then, realize the independent control of two cylinders, only need adopt the pipeline to communicate the exhaust chamber of first order cylinder with the chamber of breathing in of second level cylinder during the doublestage compression.

A compressor adopts foretell cylinder block.

A refrigerator adopts the cylinder seat.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.