CN215646415U

CN215646415U - Vertical rotary compressor

Info

Publication number: CN215646415U
Application number: CN202122131756.8U
Authority: CN
Inventors: 炊军立; 王海英; 洪稚鹏; 刘威威; 黎明就
Original assignee: TCL Rechi Huizhou Refrigeration Equipment Co Ltd
Current assignee: TCL Rechi Huizhou Refrigeration Equipment Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-25
Anticipated expiration: 2031-09-03

Abstract

The utility model provides a vertical rotary compressor. The utility model provides a vertical type rotary compressor, including the top cap, a housing, the stator, the rotor, the transmission shaft, the pump body and stock solution chamber, the circumference edge of its rotor is provided with first circular arc and second circular arc in even turn, the radius of first circular arc and the concentric and first circular arc of first circular arc and second circular arc is greater than the second circular arc, every section first circular arc is close to shaft hole one side and all corresponds and has seted up 1 style of calligraphy magnet hole, leave between the circumference edge of magnet hole and rotor and separate the magnetic bridge, it does not have the bow-shaped region that separates the magnet hole to form between the first circular arc that magnet hole and correspond. The novel motor iron core structure is matched, the periphery of the rotor corresponding to the middle part of the magnet has a specially designed irregular shape, so that the magnetic field of the rotor forms magnetic field intensity distribution close to sine, the induced voltage of the stator tends to be sine, the electromagnetic noise is reduced, and the working efficiency of the compressor is further improved.

Description

Vertical rotary compressor

Technical Field

The utility model relates to the field of air-conditioning compressors, in particular to a vertical rotary compressor.

Background

In an air conditioning system of an automobile, a compressor commonly used at present is a vertical rotary compressor, a rotating shaft of the vertical rotary compressor is driven by a motor, and an eccentric portion drives a ring to compress refrigerant gas. Like this, the efficiency height of motor is with the performance of direct influence compressor, and current motor has the multiple type, and the common 6 utmost point 9 groove directly wind the motor that have, and the key factor that influences motor efficiency is exactly the rotor core of motor, and the motor among the compressor commonly used at present is because rotor core's magnetic field distribution sinusoidal degree is lower, and the magnetic leakage volume is great for the phenomenon that the electromagnetic sound is big, high efficiency rotational speed scope is little often appears in the compressor, leads to the compressor under normal power, and refrigeration efficiency is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects that the motor in the prior common compressor has low magnetic field distribution sine degree and large magnetic leakage quantity due to the low magnetic field distribution sine degree of the rotor core, so that the compressor often has the phenomena of large electromagnetic sound and small high-efficiency rotating speed range, and the refrigeration efficiency of the compressor is low under normal power. A vertical type rotary compressor is provided. The utility model can improve the working efficiency of the compressor.

In order to solve the technical problems, the utility model adopts the technical scheme that: a vertical rotary compressor comprises a top cover, a shell, a stator, a rotor, a transmission shaft, a pump body and a liquid storage cavity, the top cover is connected with the top of the shell, the pump body is positioned at the bottom end in the shell, the liquid storage cavity is communicated with the pump body, one end of the transmission shaft is connected with the pump body, the other end of the transmission shaft is arranged in a shaft hole arranged on the rotor in a penetrating way, the rotor is positioned in the stator, the stator is arranged on the inner wall of the middle part of the shell, the circumferential edge of the rotor is uniformly and alternately provided with a first circular arc and a second circular arc, the first circular arc and the second circular arc are concentric, the radius of the first circular arc is larger than that of the second circular arc, one side of each first circular arc, which is close to the shaft hole, is correspondingly provided with 1 linear magnet hole, and a magnetism isolating bridge is reserved between the magnet hole and the circumferential edge of the rotor, and an arch-shaped area without the magnetism isolating hole is formed between the magnet hole and the corresponding first arc.

Preferably, the number of the magnet holes and the number of the first arcs are both 6.

Furthermore, the two ends of the magnet hole are respectively arranged on the positioning bulges.

Preferably, the ratio of the radius of the second arc to the radius of the first arc is 0.92 to 0.97.

More preferably, the ratio of the radius of the second circular arc to the radius of the first circular arc is 0.95.

Preferably, the ratio of the chord center distance of the magnet hole to the second circular arc is 0.75-0.85.

Furthermore, the rotor is provided with refrigerant passage holes which are distributed evenly and at intervals around the shaft hole.

Preferably, the refrigerant passage hole is semicircular, and a circle center side of the refrigerant passage hole faces the shaft hole.

Furthermore, a rivet hole is formed between included angles of the 2 adjacent magnet holes in the rotor.

Preferably, the width of the magnetic isolation bridge is 0.4 mm-0.5 mm.

Compared with the prior art, the beneficial effects are:

the matched motor has a novel motor iron core structure, the rotor and the stator have uneven gaps and no magnetic isolation holes, the magnet is in a straight shape and is inserted into the rotor iron core, the end part of the magnet is provided with a magnetic isolation bridge, the periphery of the rotor corresponding to the middle part of the magnet has a specially designed irregular shape, so that the magnetic field of the rotor forms magnetic field intensity distribution close to sine, the induced voltage of the stator tends to be sine, and the electromagnetic noise is reduced; the motor structure in the compressor has the advantages of less copper wire consumption, less magnet consumption, low cost, good sine property of induced voltage and small stress and deformation; the working efficiency of the compressor is further improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the structure of the rotor in the present invention.

Fig. 3 is a schematic view of the end face structure of the rotor in the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The technical scheme of the utility model is further described in detail by the following specific embodiments in combination with the attached drawings:

as shown in fig. 1, a vertical rotary compressor, which comprises a top cover 5, a housing 3, a stator 2, a rotor 1, a transmission shaft 8, a pump body 4 and a liquid storage cavity 7, wherein the top cover 5 is connected to the top of the housing 3, the top of the top cover 5 is connected with an exhaust pipe 6, the pump body 4 is arranged at the bottom end inside the housing 3, the liquid storage cavity 7 is communicated with the pump body 4, one end of the transmission shaft 8 is connected with the pump body 4, the other end of the transmission shaft penetrates through a shaft hole 16 arranged on the rotor 1, the rotor 1 is arranged inside the stator 2, the stator 2 is arranged on the inner wall of the middle part of the housing 3, as shown in fig. 2 and 3, a first circular arc 11 and a second circular arc 12 are uniformly and alternately arranged on the circumferential edge of the rotor 1, the first circular arc 11 and the second circular arc 12 are concentric, the radius of the first circular arc 11 is larger than that of the second circular arc 12, and one side of each section of the first circular arc 11, which is close to the shaft hole 16, is correspondingly provided with 1 linear magnet hole 13, a magnetism isolating bridge 14 is reserved between the magnet hole 13 and the circumferential edge of the rotor 1, and the width of the magnetism isolating bridge 14 is 0.4-0.5 mm; an arch-shaped area 15 without magnetism isolating holes is formed between the magnet holes 13 and the corresponding first circular arcs 11. The basic configuration of the compressor of the present embodiment is identical to that of a conventional compressor, and is improved in that the rotor 1 of the present embodiment has an irregular outer circumference and no magnetism isolating holes.

In the present embodiment, the number of the magnet holes 13, the first arcs 11, and the second arcs 12 is 6; the two ends of each magnet hole 13 are respectively arranged on the positioning bulges. Taking the radial section of the rotor 1 as a main visual angle, the first circular arcs 11 and the second circular arcs 12 are alternately and uniformly arranged at intervals, and the adjacent first circular arcs 11 and the second circular arcs 12 are connected through smooth curves, so that the rotor 1 forms an irregular peripheral shape; the magnet is inserted in the magnet hole 13 and used as a permanent magnet, and positioning protrusions are arranged at two ends of each magnet hole 13 to prevent the magnet from moving. The rivet hole 18 is provided at a position close to the magnet, and the influence on the magnetic field is reduced.

In the present embodiment, the ratio of the radius of the second arc 12 to the radius of the first arc 11 is 0.92 to 0.97; it is generally set that the ratio of the radius of the second circular arc 12 to the radius of the first circular arc 11 is 0.95.

The ratio of the chord center distance of the magnet hole 13 to the second arc 12 is generally set to be 0.75-0.85; the rotor 1 is also provided with refrigerant passage holes 17 which are uniformly distributed at intervals around the shaft hole 16; the refrigerant passage hole 17 is semicircular, and one side of the circle center of the refrigerant passage hole 17 faces the shaft hole 16; rivet holes 18 are arranged between the included angles of the adjacent 2 magnet holes 13 on the rotor 1. The position of the center of the rotor 1, which is close to the rotating shaft, is provided with a large-area refrigerant circulation channel, which is beneficial to reducing the flow resistance of the refrigerant and enhancing the heat dissipation of the rotor 1.

In the compressor, the motor drives the pump body 4 to operate, the processes of air suction, compression and exhaust of the pump body 4 are realized, the efficiency of the motor is directly related to the efficiency of the compressor, in the embodiment, the periphery of the rotor 1 in the motor is in an irregular shape, so that the rotor 1 and the stator 2 in the compressor have unequal gaps, and no magnetism isolating hole is arranged between the magnet hole 13 and the edge of the rotor 1, and the magnetic leakage can be reduced. The pump body 4 adopted by the compressor in the embodiment is a flat rotary pump body 4, and has the advantage of high compression efficiency, the matched motor has a novel motor iron core structure, the rotor 1 and the stator 2 have uneven gaps and no magnetism isolating holes, the magnet is in a straight shape and is inserted into the iron core of the rotor 1, the end part of the magnet is provided with a magnetism isolating bridge 14, the periphery of the rotor 1 corresponding to the middle part of the magnet has a specially designed irregular shape, so that the magnetic field of the rotor 1 forms a magnetic field intensity distribution close to sine, the induced voltage of the stator 2 tends to sine, and the electromagnetic noise is reduced; the motor structure in the compressor has the advantages of less copper wire consumption, less magnet consumption, low cost, good sine property of induced voltage and small stress and deformation; the working efficiency of the compressor is further improved.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a vertical type rotary compressor, includes top cap (5), casing (3), stator (2), rotor (1), transmission shaft (8), the pump body (4) and stock solution chamber (7), top cap (5) are connected the top of casing (3), the pump body (4) are located the inside bottom of casing (3), stock solution chamber (7) with the pump body (4) switch-on, transmission shaft (8) one end is connected the pump body (4), the other end are worn to establish in shaft hole (16) that are equipped with on rotor (1), rotor (1) are located the inside of stator (2), install stator (2) on the inner wall at casing (3) middle part, its characterized in that, the circumference edge of rotor (1) is provided with first circular arc (11) and second circular arc (12) evenly in turn, the radius that first circular arc (11) and second circular arc (12) are concentric and first circular arc (11) is greater than second circular arc (11), (12) Every section of first circular arc (11) is close to shaft hole (16) one side all corresponds and has seted up 1 style of calligraphy magnet hole (13), magnet hole (13) with leave between the circumference edge of rotor (1) and separate magnetic bridge (14), form between magnet hole (13) and the first circular arc (11) that corresponds and do not have bow-shaped region (15) that separate the magnet hole.

2. Upright rotary compressor according to claim 1, characterized in that the number of said magnet holes (13) and first arcs (11) is 6 each.

3. The upright rotary compressor of claim 1, wherein the magnet holes (13) are provided at both ends thereof with positioning protrusions (19), respectively.

4. Vertical rotary compressor according to claim 1, characterized in that the ratio of the radius of the second circular arc (12) to the radius of the first circular arc (11) is 0.92-0.97.

5. Vertical rotary compressor according to claim 1, characterized in that the ratio between the radius of the second circular arc (12) and the radius of the first circular arc (11) is 0.95.

6. The upright rotary compressor of claim 1, wherein the ratio of the chord center distance of the magnet holes (13) to the second circular arc (12) is 0.75-0.85.

7. Upright rotary compressor according to claim 1, characterized in that the rotors (1) are provided with refrigerant passage holes (17) uniformly and at intervals around the shaft hole (16).

8. The upright rotary compressor of claim 1, wherein the refrigerant passage hole (17) is semicircular, and a side of a center of the refrigerant passage hole (17) faces the shaft hole (16).

9. The upright rotary compressor of claim 1, wherein the rotor (1) is provided with rivet holes (18) between the angles of the adjacent 2 magnet holes (13).

10. The upright rotary compressor of claim 1, wherein the width of the magnetic isolation bridge (14) is 0.4mm to 0.5 mm.