TW201817967A - Compressor structure - Google Patents

Abstract

A compressor structure includes a housing, a motor, a compressing pump, a upper supporter, a lower supporter. The housing has an oil storage tank for storing refrigeration oil. The motor is disposed outside the housing. The compressing pump is disposed in the housing. The compressing pump has a cylinder and a ring. The ring is connected to the motor by an eccentric shaft. The upper supporter and the lower supporter are disposed in the housing for supporting the cylinder and the eccentric shaft, and the cylinder is disposed between the upper supporter and the lower supporter. The lower supporter has an upper portion with a diameter of D1 and a lower portion with a diameter of D2, and wherein D2=(0.5~1.5)*D1. The oil storage tank has a lower space is partially occupied by the lower portion. Therefore, it reduces the lower space of the oil storage tank, but a level of the refrigeration oil is remained. It reduces refrigerant being mixed with the refrigeration oil.

Description

 Compressor structure  

The invention relates to a compressor structure, in particular to a compressor structure capable of maintaining the oil level of the refrigerator and reducing the mixing of the refrigerant into the refrigerator oil.

The existing compressors are designed with the maximum amount of refrigerant, so the refrigerating machine oil has no feeling of dilution of the system refrigerant, but the newly applied refrigerant restricts the amount of refrigerant filling due to safety, so how to exert a limited amount of refrigerant to generate the maximum cold room capacity, It is a new compressor design project.

In summary, the present inventors have felt that the above-mentioned defects can be improved, and they have devoted themselves to research and cooperate with the application of the theory, and finally proposed an invention which is reasonable in design and effective in improving the above defects.

The technical problem to be solved by the present invention is to provide a compressor structure, which can reduce the lower space of the oil storage tank, but can still maintain the oil level of the refrigerator, reduce the refrigerant mixed into the refrigeration oil, can exert a limited amount of refrigerant, and generate the largest cold room. ability.

In order to solve the above technical problem, the present invention provides a compressor structure, comprising: a casing, the lower portion of the casing is provided with an oil storage tank, the oil storage tank stores refrigeration oil; a motor, the motor is disposed in the casing; a compression a pump, the compression pump is disposed in the outer casing, the compression pump comprises a cylinder and a ring, the ring is rotatably disposed in the cylinder, the ring is connected to the motor through an eccentric shaft; an upper support, the upper support The base is disposed in the outer casing; the lower support is disposed in the outer casing, the cylinder is disposed between the upper support and the lower support, and the upper support and the lower support are used for supporting The cylinder body and the eccentric shaft; and wherein the lower support comprises an upper portion of the seat and a lower portion of the seat, the diameter of the upper portion of the support is defined as D1, and the diameter of the lower portion of the support is D2, and the following relationship is satisfied Condition: D2=(0.5~1.5) D1, so that the lower space of the oil storage tank is partially occupied by the lower part of the support.

In order to solve the above technical problem, the present invention further provides a compressor structure, comprising: a casing, the lower part of the casing is provided with an oil storage tank, the oil storage tank stores a refrigerator oil, and the bottom of the casing is provided with a bottom cover, the oil storage tank Located above the bottom cover; a motor, the motor is disposed in the outer casing; a compression pump, the compression pump is disposed in the outer casing, the compression pump includes a cylinder and a ring, and the ring is rotatably disposed in the cylinder The ring is connected to the motor through an eccentric shaft; an upper support, the upper support is disposed in the outer casing; a lower support, the lower support is disposed in the outer casing, and the cylinder is disposed on the upper support And the lower support and the lower support for supporting the cylinder and the eccentric shaft; and wherein the bottom cover is provided with an inner convex portion, the inner convex portion extending into the oil storage groove The lower space allows the lower space of the oil reservoir to be partially occupied by the inner convex portion.

Advantageous Effects of Invention: The present invention enlarges the diameter of the lower portion of the support of the lower support such that the diameter of the lower portion of the support is 50% to 150% of the diameter of the upper portion of the support. Therefore, the overall volume of the lower support increases, and the lower support takes up the lower space of the oil storage tank to reduce the lower space of the oil storage tank, maintains the oil level of the refrigerator, and reduces the mixing of the refrigerant into the refrigeration oil.

The bottom cover of the present invention may be provided with an inner convex portion extending into the lower space of the oil storage tank, and the inner convex portion may occupy the lower space of the oil storage tank to reduce the lower space of the oil storage tank, thereby maintaining the oil level of the refrigerator and reducing the oil level The refrigerant is mixed into the refrigerator oil.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

1‧‧‧Shell

11‧‧‧ oil storage tank

12‧‧‧Draining tube

13‧‧‧Inhalation tube

14‧‧‧ bottom cover

141‧‧‧Outer convex

142‧‧‧ joints

143‧‧‧ inside convex

2‧‧‧Motor

21‧‧‧ Stator

22‧‧‧Rotor

3‧‧‧Compressed pump

31‧‧‧Cylinder

32‧‧‧ Ring

33‧‧‧Eccentric shaft

4‧‧‧Upper support

5‧‧‧ lower support

51‧‧‧Upper support

52‧‧‧ lower seat

53‧‧‧ pivot hole

54‧‧‧Fixed holes

55‧‧‧ screws

D1‧‧‧ diameter

D2‧‧‧ diameter

D3‧‧‧diameter

D4‧‧‧Inner diameter

6‧‧‧Library

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing a first embodiment of a compressor structure of the present invention.

Figure 2 is a partial cross-sectional view showing a first embodiment of the compressor structure of the present invention.

Figure 3 is a cross-sectional view showing a second embodiment of the compressor structure of the present invention.

Figure 4 is a partial cross-sectional view showing a second embodiment of the compressor structure of the present invention.

Figure 5 is a cross-sectional view showing a third embodiment of the compressor structure of the present invention.

Figure 6 is a partial cross-sectional view showing a third embodiment of the compressor structure of the present invention.

 [First Embodiment]  

The relationship between the refrigerant and the refrigerating machine oil is the oil dilution rate (in the operating system) and the refrigerating machine oil dissolution rate (the compressor oil tank contains the refrigerant amount). The invention proposes a new design theory for the refrigerating machine oil dissolution rate: for example, when the refrigerating machine oil dissolution rate is 10%, 15 g of refrigerant is dissolved in 150 g of refrigerating machine oil, the refrigerant filling amount is 250 g, and the amount of refrigerant running in the system is actually 250 g. -15g = 235g. If the space of the oil storage tank is short, the height of the refrigerating machine oil is maintained at the same height, but only 120g of refrigerating machine oil is filled, 12g of refrigerant is dissolved in 120g of oil, the filling amount of refrigerant is 250g, and the amount of refrigerant running in the system is actually 250g-12g= 238g, the difference between the two is 1.27% of the running refrigerant. Since the level of the refrigerating machine oil in the compression pump operation is not variable, the lower space of the oil sump must be adjusted.

Referring to FIG. 1 and FIG. 2, the present invention provides a compressor structure including a casing 1, a motor 2, a compression pump 3, an upper support 4 and a lower support 5. The outer casing 1 is a hollow body, and can be used to accommodate components such as a motor 2, a compression pump 3, an upper support 4, and a lower support 5. The lower portion of the outer casing 1 is provided with an oil reservoir 11 for storing refrigeration oil. The outer casing 1 can be further connected to a discharge pipe 12 and a suction pipe 13, which can be connected to a liquid accumulator 6 for inputting refrigerant to the compressor structure through the accumulator 6. The bottom of the outer casing 1 may be provided with a bottom cover 14, which is a circular cover body, and the bottom cover 14 may have an outer convex portion 141 which protrudes outward (downward) in an arc shape. The bottom cover 14 can be looped with an engaging portion 142. The joint portion 142 of the bottom cover 14 can be connected to the bottom of the outer casing 1 by welding or the like for closing the bottom of the outer casing 1. The oil storage groove 11 is located at the bottom cover 14. Above.

The motor 2 is disposed in a casing 2 including a stator 21 and a rotor 22. The stator 21 is fixed to an inner wall of the casing 1, and the rotor 22 is rotatably disposed inside the stator 21.

The compression pump 3 is disposed in the outer casing 1, and the compression pump 3 can be immersed in the refrigerating machine oil of the oil storage tank 11. The compression pump 3 includes a cylinder 31 and a ring 32. The number of the cylinder 31 and the ring 32 is not limited, that is, the compression pump 3 can be of a single cylinder or a double cylinder, and the cylinder 31 and the ring 32 can be correspondingly arranged. One or two, etc., this embodiment is provided with a cylinder 31 and a ring 32. The ring 32 is rotatably disposed within the cylinder block 31, and the ring 32 is coupled to the rotor 22 of the motor 2 via an eccentric shaft 33. The stator 21 can drive the rotor 22 to rotate the eccentric shaft 33, and the eccentric shaft 33 can drive the ring 32 to rotate in the cylinder 31, so that the gas refrigerant is sucked into the compression space inside the cylinder 31 of the compression pump 3 through the suction pipe 13, and It is continuously compressed to a certain pressure, and the refrigerant in the compression space is output to the inside of the casing 1 through the discharge hole (not shown). The discharged refrigerant can be moved upward through a gap between the outer casing 1 and the stator 21, or a gap between the stator 21 and the rotor 22, and finally discharged to the refrigeration cycle system through the discharge pipe 12.

The upper support 4 and the lower support 5 are disposed in the outer casing 1. The cylinder block 31 is disposed between the upper support 4 and the lower support 5. The upper support 4 and the lower support 5 can be used to support the cylinder 31 and the eccentric shaft. 33.

In this embodiment, the lower support 5 is mainly modified, and the lower support 5 can be extended in the horizontal direction, thereby increasing the volume of the lower support 5 to reduce the lower space of the oil storage tank 11. Specifically, the lower support 5 may have a cylindrical shape with an unequal diameter. The lower support 5 includes a seat upper portion 51 and a base lower portion 52. The upper support portion 51 and the lower portion 52 of the support are respectively disposed above. In the lower position, the lower portion 52 of the support is connected to the bottom of the upper portion 51 of the support, and the upper portion 51 of the support and the lower portion 52 of the support are cylindrical. The upper portion 51 of the support and the lower portion 52 of the support are provided with a pivot hole 53 which is located at a central position of the upper portion 51 of the support and the lower portion 52 of the support. The eccentric shaft 33 is pivotally disposed on the upper support 4 and the lower support 5 , and the lower end of the eccentric shaft 33 is pivotally disposed on the pivot hole 53 of the lower support 5 . A plurality of fixing holes 54 may be formed in the lower periphery of the pivot hole 53 at the periphery of the pivot hole 53 for the screw 55 to be inserted and locked with the cylinder 31 and the upper support 4 of the compression pump 3.

In this embodiment, the diameter of the lower portion 52 of the lower support 5 is increased, that is, the lower portion 52 of the lower support 5 can extend outward in the horizontal direction, and the diameter (outer diameter) of the upper portion 51 of the support is defined. For D1, the diameter (outer diameter) of the lower portion 52 of the support is D2, and the following relationship condition is satisfied: D2 = (0.5 - 1.5) D1. In the present embodiment, the diameter D1 of the upper portion 51 of the support and the diameter D2 of the lower portion 52 of the support are smaller than the diameter D3 of the outer convex portion 141 of the bottom cover 14, and the diameter D1 of the upper portion 51 of the support and the diameter of the lower portion 52 of the support D2 is smaller than the inner diameter D4 of the outer casing 1. In addition, the outer wall of the lower portion 52 of the support is adjacent to the fixing holes 54.

Preferably, the following relationship condition is satisfied: D2=(0.6~0.9) D1. In another embodiment of the invention, D2 = 0.6D1, 0.7D1, 0.8D1 or 0.9D1.

The present invention enlarges the diameter D2 of the lower portion 52 of the lower support 5 such that the diameter D2 of the lower portion 52 of the support is 50% to 150% of the diameter D1 of the upper portion 51 of the support. In the present embodiment, the diameter D2 of the lower portion 52 of the holder is about 65% of the diameter D1 of the upper portion 51 of the holder. Therefore, the overall volume of the lower support 5 is increased, and the lower support 5 occupies a part of the lower space of the oil storage tank 11 to reduce the lower space of the oil storage tank 11, but the level of the oil level of the refrigerator can be maintained, and the refrigerant is mixed into the refrigerator oil. It can exert a limited amount of refrigerant and produce the largest cold room capacity.

 [Second embodiment]  

Referring to FIG. 3 and FIG. 4, the diameter of the lower portion 52 of the lower support 5 is also increased. The diameter of the upper portion 51 of the support portion is defined as D1, and the diameter of the lower portion 52 of the support portion is D2. The following relational conditions: D2 = (0.5 ~ 1.5) D1.

In the present embodiment, the diameter D2 of the lower portion 52 of the support is equal to the diameter D1 of the upper portion 51 of the support, and the diameter D1 of the upper portion 51 of the support and the diameter D2 of the lower portion 52 of the support are larger than the outer convex portion 141 of the bottom cover 14. The diameter D3, the diameter D1 of the upper portion 51 of the support and the diameter D2 of the lower portion 52 of the support are all smaller than the inner diameter D4 of the outer casing 1. In addition, the outer wall of the lower portion 52 of the support is located outside the fixing holes 54, that is, the outer wall of the lower portion 52 of the support is located between the fixing holes 54 and the inner wall of the outer casing 1. The overall volume of the lower support 5 is increased, and the lower support 5 occupies the lower space of the oil storage tank 11 to reduce the lower space of the oil storage tank 11, but the level of the oil level of the refrigerator can be maintained, and the refrigerant is mixed into the refrigeration oil. Can play a limited amount of refrigerant, resulting in the largest cold room capacity.

 [Third embodiment]  

Referring to FIG. 5 and FIG. 6, this embodiment mainly improves the bottom cover 14 at the bottom of the outer casing 1 to reduce the lower space of the oil storage tank 11. Specifically, the bottom cover 14 is provided with an inner convex portion 143, and the inner convex portion 143 extends into the lower space of the oil sump 11. The number of the inner convex portions 143 is not limited, and may be one or two. Three or four, etc. The inner convex portion 143 may have an annular shape, and the inner convex portion 143 may be disposed continuously or at intervals. The shape and arrangement of the inner convex portion 143 are not limited, and may be, for example, a radial arrangement.

The inner convex portion 143 may have an inward (upward) convex shape, but the sectional shape of the inner convex portion 143 is not limited. For example, the inner convex portion 143 may have a square, trapezoidal or other shape. . The inner convex portion 143 may be located at the outer periphery of the lower portion 52 of the lower support 5, and the inner convex portion 143 may be adjacent to the upper portion 51 of the lower support 5, and the inner convex portion 143 may be located at the support of the lower support 5. Below the upper part 51.

In this embodiment, the diameter of the upper portion 51 of the lower support 5 and the lower portion 52 of the support 5 is not limited, that is, the improvement of the bottom cover 14 of the embodiment can be implemented separately, and the first one is not required. The relational expression of the second embodiment: D2 = (0.5 - 1.5) The limit of D1.

In the present embodiment, the bottom cover 14 is provided with an inner convex portion 143 that protrudes into the lower space of the oil sump 11. The inner convex portion 143 occupies a part of the lower space of the oil storage tank 11 to reduce the lower space of the oil storage tank 11, but the temperature of the oil level of the refrigerator can be maintained, and the refrigerant is mixed into the refrigerator oil.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and equivalent changes made by using the description of the present invention and the contents of the drawings are all included in the scope of protection of the present invention. Inside.

Claims (10)

 A compressor structure comprising: a casing, a lower portion of the casing is provided with an oil storage tank, the oil storage tank stores refrigeration oil; a motor, the motor is disposed in the casing; a compression pump, the compression pump is disposed in the casing The compression pump comprises a cylinder body and a ring, the ring is rotatably disposed in the cylinder body, the ring is connected to the motor through an eccentric shaft; an upper support, the upper support is disposed in the outer casing; the lower support The lower support is disposed in the outer casing, the cylinder is disposed between the upper support and the lower support, the upper support and the lower support are for supporting the cylinder and the eccentric shaft; and wherein The lower support comprises an upper portion of the seat and a lower portion of the seat, and the diameter of the upper portion of the support is defined as D1, and the diameter of the lower portion of the support is D2, and the following relationship condition is satisfied: D2=(0.5~1.5) D1 The lower space of the oil storage tank is partially occupied by the lower portion of the support.    The compressor structure according to claim 1, wherein the following relationship condition is more satisfied: D2 = (0.7 - 0.9) D1.    The compressor structure of claim 1, wherein the bottom of the outer casing is provided with a bottom cover, the bottom cover has an outer convex portion, the outer convex portion protrudes outward in an arc shape, and a diameter of the upper portion of the support portion The diameter of the lower portion of the support is smaller than the diameter of the outer convex portion of the bottom cover.    The compressor structure of claim 1, wherein the bottom of the outer casing is provided with a bottom cover, the bottom cover has an outer convex portion, the outer convex portion protrudes outward in an arc shape, and a diameter of the upper portion of the support portion The diameter of the lower portion of the support is larger than the diameter of the outer convex portion of the bottom cover.    The compressor structure of claim 1, wherein the upper portion of the support and the lower portion of the support are cylindrical, and the upper portion of the support and the lower portion of the support are provided with a pivot hole, and the pivot hole is located at an upper portion of the support and the support The lower end of the lower portion of the seat is pivotally disposed at the lower end of the eccentric shaft.    The compressor structure of claim 5, wherein the lower support is provided with a plurality of fixing holes at a periphery of the pivot hole for screwing with the cylinder of the compression pump and the upper support The locking assembly has an outer wall of the lower portion of the support adjacent to the fixing holes.    The compressor structure of claim 5, wherein the lower support is provided with a plurality of fixing holes at a periphery of the pivot hole for screwing with the cylinder of the compression pump and the upper support In the locking assembly, the outer wall of the lower portion of the support is located outside the fixing holes, and the outer wall of the lower portion of the support is located between the fixing holes and the inner wall of the outer casing.    The utility model relates to a compressor structure, comprising: a casing, an oil storage tank is arranged at a lower portion of the casing, the oil storage tank stores a refrigerator oil, a bottom cover is arranged at a bottom of the outer casing, the oil storage tank is located above the bottom cover; and a motor a motor is disposed in the outer casing; a compression pump is disposed in the outer casing, the compression pump includes a cylinder and a ring, the ring is rotatably disposed in the cylinder, and the ring is coupled to the motor through an eccentric shaft An upper support, the upper support is disposed in the outer casing; a lower support, the lower support is disposed in the outer casing, the cylinder is disposed between the upper support and the lower support, the upper support The base and the lower support are for supporting the cylinder and the eccentric shaft; and wherein the bottom cover is provided with an inner convex portion that protrudes into a lower space of the oil storage tank to make a lower space of the oil storage tank Partially occupied by the inner convex portion.    The compressor structure according to claim 8, wherein the inner convex portion has an annular shape, and the inner convex portion has a cross-sectional shape that is convex inward.    The compressor structure according to claim 8, wherein the inner convex portion is located at a periphery of a lower portion of the lower seat of the lower support, and the inner convex portion is adjacent to an upper portion of the lower support, the inner convex portion is located Below the upper part of the support of the lower support.