Compressor discharge structure and compressor comprising same

Abstract

The application provides a compressor exhaust structure and a compressor comprising the same, the exhaust structure comprising a crankshaft, an upper cylinder cover, a lower cylinder cover and a cylinder; the upper cylinder cover is provided with a first exhaust hole; the cylinder is provided with a second exhaust hole; the first exhaust hole and the second exhaust hole are communicated by an exhaust column; the exhaust column comprises an exhaust column body, a channel and a third exhaust hole communicated with the channel; one end of the exhaust column is in contact with the slope of a disc cam rotating with the crankshaft, the height of the slope of the disc cam reciprocates with the rotation of the disc cam, and drives the exhaust column to reciprocate up and down to make the second exhaust hole and the third exhaust hole in a communicating or closed state; the exhaust column body is matched with a limiting groove of the cylinder, and the exhaust column body is not rotatable relative to the limiting groove. The exhaust column of the exhaust structure of the application will not rotate, thereby excluding the condition that the exhaust hole thereon is not communicated with the cylinder during exhaust, and increasing the stability and reliability of the operation of the compressor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of compressors, in particular to a compressor exhaust structure and a compressor comprising the same. BACKGROUND

[0002] A rotor compressor exhaust structure in the prior art controls the opening and closing of exhaust by the rotation of a crankshaft. The working principle is that the crankshaft rotates, and a disc cam is installed on the crankshaft. The disc cam is artificially designed to push the exhaust column to slide up and down. The exhaust column operates according to the artificially designed timing of the opening and closing of the exhaust hole under the action of the disc cam. The exhaust column of the exhaust structure is in the form of a cylinder, and is prone to self-rotation during operation. When the exhaust column self-rotates, the exhaust hole cannot be connected to the cylinder, affecting the exhaust of the cylinder.

[0003] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0004] In view of the problems in the prior art, the purpose of the present application is to provide a compressor exhaust structure and a compressor comprising the same. The exhaust column of the compressor exhaust structure of the present application will not self-rotate, thereby eliminating the condition that the exhaust hole thereon cannot be connected to the cylinder when exhaust is required.

[0005] Some embodiments of the present application provide a compressor exhaust structure, comprising a crankshaft, an upper cylinder head, a lower cylinder head, and a cylinder between the upper cylinder head and the lower cylinder head;

[0006] The upper cylinder head is provided with a first exhaust hole;

[0007] The cylinder is provided with a second exhaust hole;

[0008] The first exhaust hole and the second exhaust hole are connected in communication by an exhaust column provided on the side wall of the cylinder;

[0009] The exhaust column comprises an exhaust column body, a channel, and a third exhaust hole connected in communication with the channel provided on the exhaust column body;

[0010] One end of the exhaust column abuts against a disc cam that rotates with the crankshaft. The height of the surface of the disc cam abutting against the exhaust column reciprocates with the rotation of the disc cam, driving the exhaust column to reciprocate up and down to make the second exhaust hole and the third exhaust hole in a state of communication or closed state;

[0011] The exhaust column body is adapted to a limiting groove provided on the side wall of the cylinder, and the exhaust column body is not rotatable relative to the limiting groove.

[0012] According to some examples of the present application, the exhaust column body is an elliptical column, a flat column or a polygonal column.

[0013] According to some examples of the present application, the limiting slot has an elliptical, flat or polygonal cross section in a plane perpendicular to the axis of the crankshaft.

[0014] According to some examples of the present application, the exhaust column body comprises a circular column and a limiting pin arranged on the side surface of the circular column.

[0015] According to some examples of the present application, the limiting pin is a long column with a quadrilateral cross section.

[0016] According to some examples of the present application, the channel is a circular, elliptical or polygonal hollow channel arranged in the exhaust column body.

[0017] According to some examples of the present application, the exhaust column comprises a snap spring, and the exhaust column further comprises a snap spring arranged on the exhaust column body near the end of the exhaust column close to the disc cam, and the snap spring is in contact with the surface of the lower cylinder head away from the cylinder when the exhaust column moves upward.

[0018] According to some examples of the present application, the compressor exhaust structure further comprises an elastic assembly, and the elastic assembly is sleeved between the snap spring and the surface of the lower cylinder head away from the cylinder.

[0019] According to some examples of the present application, the elastic assembly is a coil spring sleeved between the snap spring and the surface of the lower cylinder head away from the cylinder.

[0020] Some other embodiments of the present application provide a compressor comprising the above-mentioned compressor exhaust structure.

[0021] The present application aims to provide a compressor exhaust structure and a compressor comprising the same. By arranging the exhaust column and the limiting slot matched therewith, the exhaust column of the compressor exhaust structure of the present application will not rotate, thereby eliminating the situation that the exhaust hole thereon cannot be connected with the cylinder when exhaust is needed, and increasing the stability and reliability of the operation of the compressor. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, function to explain the principles of the application. Other features, objects, and advantages of the application will be apparent from a review of the detailed description of the non-limiting embodiments, with reference to the drawings. It will be apparent to those skilled in the art that the drawings described below are merely some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative work on the basis of these drawings.

[0023] Figure 1 Structure diagram of a compressor discharge structure according to an embodiment of the present application;

[0024] Figure 2 Structure diagram of a discharge column according to an embodiment of the present application;

[0025] Figure 3 Structure diagram of a cylinder adapted to the discharge column shown in Figure 2

[0026] Figure 4 Structure diagram of a discharge column according to another embodiment of the present application;

[0027] Figure 5 Structure diagram of a cylinder adapted to the discharge column shown in Figure 4

[0028] Figure 6 Structure diagram of a discharge column according to still another embodiment of the present application;

[0029] Figure 7 Structure diagram of a cylinder adapted to the discharge column shown in Figure 6

[0030] Figure 8 Structure diagram of a discharge column according to another embodiment of the present application;

[0031] Figure 9 Structure diagram of a cylinder adapted to the discharge column shown in Figure 8

[0032] Reference signs

[0033] 100 crankshaft

[0034] 200 upper cylinder head

[0035] 210 first discharge hole

[0036] 300 lower cylinder head

[0037] 400 cylinder

[0038] 410 second discharge hole​​​​

[0039] 420 limiting groove

[0040] 500 exhaust column

[0041] 510 Exhaust column body

[0042] 520 Channel

[0043] 530 Third exhaust port

[0044] 540 snap ring

[0045] 600 disc cam

[0046] 700 Flexible Components Detailed Implementation

[0047] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0048] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0049] Figure 1 This is a schematic diagram of the compressor exhaust structure according to an embodiment of the present invention. Specifically, the compressor exhaust structure includes a crankshaft 100, an upper cylinder head 200, a lower cylinder head 300, and a cylinder 400 between the upper cylinder head 200 and the lower cylinder head 300. The upper cylinder head 200, the lower cylinder head 300, and the cylinder 400 together define a compression space. The crankshaft 100 transmits the rotational force of the compressor motor to the cylinder 400 to compress the refrigerant.

[0050] The upper cylinder head 200 is provided with a first exhaust port 210; such as Figure 1 As shown, the first exhaust port 210 passes through the upper cylinder head 200.

[0051] The cylinder 400 is provided with a second exhaust port 410; the second exhaust port 410 is provided on the side wall of the cylinder 400.

[0052] The first exhaust port 210 and the second exhaust port 410 are connected by an exhaust column 500 disposed on the side wall of the cylinder 400;

[0053] The exhaust column 500 specifically comprises an exhaust column body 510, a channel 520, and a third exhaust hole 530 in communication with the channel 520 of the exhaust column body 510;

[0054] One end of the exhaust column 500 abuts against a disc-shaped cam 600 rotating with the crankshaft 100, Figure 1 In an embodiment, the disc-shaped cam 600 is installed on the short shaft part of the crankshaft 100, and one end of the exhaust column 500 stands on the upper surface of the disc-shaped cam 600. The upper surface of the disc-shaped cam 600 has a first path and a second path with different heights. When the disc-shaped cam 600 rotates with the crankshaft 100, the height of the surface of the disc-shaped cam 600 at the abutting position with one end of the exhaust column 500 reciprocates, thereby driving the exhaust column 500 to reciprocate up and down. In other words, the rotational movement of the disc-shaped cam 600 is converted into the up-and-down linear movement of the exhaust column 500. The up-and-down reciprocation of the exhaust column 500 causes the second exhaust hole 410 to be in communication with or closed from the third exhaust hole 530. Specifically, when the exhaust column 500 moves along the first path on the disc-shaped cam 600, the third exhaust hole 530 of the exhaust column 500 is staggered up and down with the second exhaust hole 410 on the cylinder, and the exhaust column body 510 closes the cylinder 210. When the exhaust column 500 moves along the second path on the disc-shaped cam 600, the third exhaust hole 530 of the exhaust column 500 overlaps with the second exhaust hole 410 on the cylinder, thereby connecting the inside of the cylinder 210 with the outside of the cylinder 210. Specifically, the first path is a flat section, and the second path is a concave circular arc section.

[0055] Further, in the present application, the exhaust column body 510 is adapted to the limiting groove 420 provided on the side wall of the cylinder 400, and the exhaust column body 510 is not rotatable relative to the limiting groove 420. The exhaust column body 510 does not rotate, thereby eliminating the situation that the exhaust hole thereon cannot be connected with the cylinder when exhaust is needed, and increasing the stability and reliability of the compressor operation.

[0056] Figure 2 、 Figure 4 and Figure 6 are structural schematic diagrams of exhaust columns of some embodiments of the present application; the exhaust column body 510 can be an elliptical column, Figure 2 a flat column, Figure 4 or a polygonal column, such as a square exhaust column. Figure 6

[0057] Correspondingly, Figure 3 、 Figure 5 and Figure 7 ​These are schematic diagrams of a cylinder having a limiting groove 420 adapted to the exhaust column of the above embodiment. The limiting groove 420 on the cylinder sidewall has a cross-section that is elliptical, flat, or polygonal (square) on a plane perpendicular to the axis of the crankshaft 100.

[0058] The exhaust column body 510 is not limited to the aforementioned non-axisymmetric structure. It can also be as follows: Figure 8 As shown, the exhaust column body 510 includes a circular column and a limiting pin disposed on the side of the circular column. The limiting pin is a long column with a quadrilateral cross-section. The circular column and the quadrilateral long column can be connected by welding or are an integral structure. Correspondingly, the cross-section of the limiting groove 420 on the cylinder sidewall in a plane perpendicular to the axis of the crankshaft 100 is as shown. Figure 9 As shown.

[0059] When the second exhaust port 410 on the side wall of cylinder 400 overlaps with the third exhaust port 530 of exhaust column 500, the cylinder is connected to the first exhaust port 530 through the second exhaust port 410, the third exhaust port 530, and the channel 520 respectively.

[0060] The channel 520 can connect the third exhaust port 530 and the first exhaust port 210. Preferably, the channel 520 is a circular, elliptical, or polygonal hollow channel disposed within the exhaust column body 510.

[0061] The rotational movement of the disc cam 600 causes one end of the exhaust column 500 to ( Figure 1 The lower end of the disc-shaped cam 600 (at its lower end) reciprocates at its inclined surface, causing the exhaust column 500 to move up and down linearly. Because the lower end of the exhaust column 500 abuts against the inclined surface of the disc-shaped cam 600, the exhaust column 500 will not fly downwards out of the limiting groove 420 on the cylinder sidewall. However, when the exhaust column 500 moves upwards, due to the high rotational speed of the disc-shaped cam 600, the exhaust column 500 may fly upwards out of the limiting groove 420 on the cylinder sidewall. In some embodiments of the present invention, the exhaust column 500 also includes a retaining spring 540, which is disposed on the exhaust column body 510 near the end of the exhaust column 500 close to the disc-shaped cam 600. When the height of the upward movement of the exhaust column 500 exceeds a certain threshold, the retaining spring 540 abuts against the surface of the lower cylinder head 300 away from the cylinder 400, thus preventing the exhaust column 500 from moving upwards on a large scale.

[0062] Meanwhile, in order to prevent rigid collision when the snap spring 540 collides with the surface of the lower cylinder cover 300 away from the cylinder 400, the compressor exhaust structure further comprises an elastic component 700, which is sleeved between the snap spring 540 and the surface of the lower cylinder cover 300 away from the cylinder 400. Figure 1 In the embodiment, the elastic component 700 is a coil spring sleeved between the snap spring 540 and the surface of the lower cylinder cover 300 away from the cylinder 400. The elastic component plays a good reset and damping effect when the exhaust column 500 moves up and down.

[0063] The exhaust column body 510 can be an entire elliptical column ( Figure 2 ), a flat column ( Figure 4 ) or a polygonal column from top to bottom, but is not limited to these embodiments in the drawings, the exhaust column body 510 at the snap spring 540 is a cylindrical column, and the cylindrical mechanism is beneficial to reduce the resistance of the exhaust column in the process of reciprocating up and down, that is, the exhaust column body 510 can include a part with the function of preventing the exhaust column from rotating and a cylindrical part with the snap spring.

[0064] Some other embodiments of the present application provide a compressor comprising the above-mentioned compressor exhaust structure, and the compressor exhaust condition of the compressor with the above exhaust structure is more stable, and the compressor has better performance.

[0065] In summary, the present application aims to provide a compressor exhaust structure and a compressor comprising the same. Through the arrangement of the exhaust column and the limiting groove matched therewith, the exhaust column of the compressor exhaust structure of the present application will not rotate, thereby excluding the condition that the exhaust hole thereon cannot be communicated with the cylinder when exhaust is required, and increasing the stability and reliability of the operation of the compressor.

[0066] The above further describes the present application in detail in connection with specific preferred embodiments, and cannot be deemed to limit the specific implementation of the present application to these descriptions. It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in any aspect, and the scope of the present application is defined by the appended claims rather than the above descriptions, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be deemed to limit the claims involved. In addition, it is obvious that the term "comprising" does not exclude other units or steps, and the singular does not exclude the plural. The plurality of units or devices stated in the device claims can also be implemented by one unit or device through software or hardware. It should be understood that the terms "center", "length", "width", "thickness", "top end", "bottom end", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated position or element must have a particular orientation, a particular structure and operation, and therefore cannot be understood as a limitation on the application; the terms "first", "second" 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 limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

Claims

1. A compressor discharge structure, characterized by, The crankshaft, the upper cylinder cover, the lower cylinder cover and the cylinder located between the upper cylinder cover and the lower cylinder cover; The upper cylinder cover is provided with a first exhaust hole; The cylinder is provided with a second exhaust hole; The first exhaust hole and the second exhaust hole are connected through an exhaust column arranged on the side wall of the cylinder; The exhaust column comprises an exhaust column body, a channel and a third exhaust hole connected with the channel arranged on the exhaust column body; One end of the exhaust column is in contact with a disc-shaped cam rotating with the crankshaft, the height of the surface of the disc-shaped cam in contact with the exhaust column reciprocates with the rotation of the disc-shaped cam, driving the exhaust column to reciprocate up and down to make the second exhaust hole and the third exhaust hole in a connected state or a closed state; The exhaust column body is matched with a limiting groove arranged on the side wall of the cylinder, and the exhaust column body cannot rotate relative to the limiting groove.

2. The compressor discharge structure of claim 1, wherein The exhaust column body is an oval column, a flat column or a polygonal column.

3. The compressor discharge structure of claim 1, wherein: The exhaust column body comprises a circular column and a limiting pin arranged on the side surface of the circular column.

4. The compressor discharge structure of claim 3, wherein: The limiting pin is a long column with a quadrilateral cross section.

5. The compressor discharge structure of claim 1, wherein: The channel is a circular, elliptical or polygonal hollow channel arranged in the exhaust column body.

6. The compressor discharge structure of claim 1, wherein The exhaust column further comprises a snap spring, the snap spring is arranged on the exhaust column body near the end of the exhaust column close to the disc-shaped cam, and when the exhaust column moves upward, the snap spring is in contact with the surface of the lower cylinder cover away from the cylinder.

7. The compressor discharge structure of claim 6, wherein Further comprising an elastic assembly, the elastic assembly is sleeved between the snap spring and the surface of the lower cylinder cover away from the cylinder.

8. The compressor discharge structure of claim 7, wherein The elastic assembly is a spiral spring sleeved between the snap spring and the surface of the lower cylinder cover away from the cylinder.

9. A compressor characterized by, The compressor exhaust structure of any one of claims 1 to 8.

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