CN112145424A

CN112145424A - Compressor and refrigerating device with same

Info

Publication number: CN112145424A
Application number: CN201910576018.9A
Authority: CN
Inventors: 吴延平; 曹培森
Original assignee: Anhui Meizhi Precision Manufacturing Co Ltd
Current assignee: Anhui Meizhi Precision Manufacturing Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-12-29
Also published as: CN114992124A

Abstract

The invention discloses a compressor and a refrigerating device with the same. The compressor includes: cylinder, piston, bent axle and gleitbretter, the gleitbretter includes: gleitbretter noumenon portion, let position portion and gleitbretter head, let position portion connect gleitbretter noumenon portion and gleitbretter head, and gleitbretter noumenon portion is located the gleitbretter inslot at least partially, and gleitbretter head and piston connection, and the thickness of gleitbretter noumenon portion is A, lets the thickness of position portion be B, A, B satisfies the relational expression: the B is more than or equal to 21 percent and less than or equal to 75 percent. According to the compressor provided by the embodiment of the invention, the head part of the sliding piece is hinged with the piston, so that the sliding piece is connected with the piston, the normal work of the sliding piece can be ensured, and the thickness B of the displacement part of the sliding piece and the thickness A of the body part of the sliding piece meet the relation: b is more than or equal to 21% A and less than or equal to 75% A, and the clearance between the piston and the abdicating part can be increased, so that the interference between the piston and the slip sheet during the movement can be effectively avoided, and the normal work of the compressor is ensured.

Description

Compressor and refrigerating device with same

Technical Field

The invention relates to the technical field of compressors, in particular to a compressor and a refrigerating device with the same.

Background

The piston and the gleitbretter of rotary compressor commonly used at present are components of a whole that can function independently structure, and piston and gleitbretter are the separation promptly, and the afterbody of gleitbretter relies on the elasticity of spring to guarantee that the gleitbretter can not break away from the piston when the engine starts to guarantee the contact of gleitbretter and piston, reach the effect of cutting apart the high-low pressure chamber.

However, in the above-described structure, sliding friction occurs between the piston and the vane, which affects not only power consumption but also performance of the compressor.

Therefore, the structure that a piston and gleitbretter link together is proposed at present, can hold the hole of gleitbretter head through placing the gleitbretter head in the piston, realizes being connected of piston and gleitbretter to change the atress model of piston and gleitbretter, improve the consumption of gleitbretter, improve the performance of compressor.

However, the structure needs to be designed to avoid the phenomenon that the sliding vane and the piston have operation interference, so that the structure needs to be optimally designed.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the invention provides a compressor, and when the compressor works, the piston and the sliding sheet of the compressor cannot interfere with each other.

The invention also provides a refrigerating device with the compressor.

A compressor according to an embodiment of the present invention includes: cylinder, piston, bent axle and gleitbretter, induction port and gleitbretter have been seted up on the inner wall of cylinder, the piston is located in the cylinder and be suitable for the edge the inner wall of cylinder carries out eccentric rotation, the piston cover is established on the eccentric portion of bent axle, the gleitbretter includes: the slide sheet groove is at least partially positioned in the slide sheet groove, the slide sheet head is connected with the piston so as to form a compression cavity and a suction cavity in the cylinder, the compression cavity is provided with a discharge port, the suction port is communicated with the suction cavity, the thickness of the slide sheet body is A, the thickness of the escape part is B, and A, B meets the following relational expression: the B is more than or equal to 21 percent and less than or equal to 75 percent.

According to the compressor provided by the embodiment of the invention, the head part of the sliding piece is hinged with the piston, so that the sliding piece is connected with the piston, the normal work of the sliding piece can be ensured, and the thickness B of the displacement part of the sliding piece and the thickness A of the body part of the sliding piece meet the relation: b is more than or equal to 21% A and less than or equal to 75% A, and the clearance between the piston and the abdicating part can be increased, so that the interference between the piston and the slip sheet during the movement can be effectively avoided, and the normal work of the compressor is ensured.

According to some embodiments of the invention, the piston has a slide mating bore formed therein, the slide head being adapted to be placed within the slide mating bore.

Further, the diameter of the sliding sheet head is Db, A, Db satisfies the relation: db is less than or equal to 90 percent of A.

Further, B, Db satisfies the relationship: db is more than or equal to 1.2B.

Further, the height of the slide sheet is H, and H, Db satisfies the relation: H/Db is more than or equal to 1.8 and less than or equal to 7.5.

Specifically, the length of the slide sheet is L, and L, B satisfies the relation: b is less than 30 percent of L.

Further, L, Db satisfies the relationship: db is less than or equal to 40 percent L.

Specifically, the slip sheet mating hole is a major arc hole, and the slip sheet head is in surface-to-surface fit with the slip sheet mating hole.

Furthermore, two ends of the slide sheet matching hole are provided with avoidance edges for avoiding the avoidance part.

According to another aspect of the embodiment of the invention, the refrigeration device comprises the compressor.

The refrigeration device has the same advantages of the compressor compared with the prior art, and the description is omitted.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a simplified schematic diagram of a compressor;

FIG. 2 is a simplified schematic of a piston;

FIG. 3 is a simplified schematic front view of a slider;

FIG. 4 is a simplified side view of a slider;

figure 5 is a schematic view of the piston as it moves to a top dead centre position.

Reference numerals:

compressor 10, cylinder 1, vane slot 2, piston 3, vane mating hole 31, escape edge 311, vane 4, vane body 41, escape part 42, vane head 43, compression chamber 5, exhaust port 51, suction chamber 6, suction port 61.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The compressor 10 according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 5.

Referring to fig. 1, a compressor 10 according to an embodiment of the present invention may include: cylinder 1, piston 3, bent axle and gleitbretter 4, piston 3 and bent axle and gleitbretter 4 all are arranged in cylinder 1, and wherein, have seted up induction port 61 and gleitbretter groove 2 on the inner wall of cylinder 1, and piston 3 is located cylinder 1 and is suitable for and carries out eccentric rotation along the inner wall of cylinder 1, and piston 3 cover is established on the eccentric portion of bent axle.

As shown in fig. 3, the slider 4 may include: slide vane body 41, let position department 42 and slide vane head 43, let position department 42 connect slide vane body 41 and slide vane head 43, slide vane body 41 is located slide vane groove 2 at least partially, and slide vane head 43 is connected with piston 3, in order to form compression chamber 5 and suction chamber 6 in cylinder 1, specifically, as shown in fig. 1, slide vane mating holes 31 have been seted up on piston 3, slide vane head 43 is suitable for placing in slide vane mating holes 31, namely slide vane head 43 cooperates through cooperating with slide vane mating holes 31, thereby realize the connection cooperation of slide vane 4 and piston 3, and slide vane head 43 can rotate in slide vane mating holes 31, namely slide vane head 43 is connected for articulated with piston 3, thereby guarantee when piston 3 rotates, slide vane 4 does not rotate along with piston 3's rotation, thereby guarantee the normal work of slide vane 4.

In the specific embodiment, when compressor 10 carries out the during operation, under the drive of bent axle, piston 3 carries out the eccentric formula and rotates in cylinder 1, because piston 3 is connected for articulated with gleitbretter 4, consequently, under the drive of piston 3, gleitbretter 4 only takes place the ascending removal in gleitbretter 4 axis direction, and gleitbretter 4 carries out reciprocating motion in cylinder 1 promptly, and, when piston 3 rotates, the space in the middle of compression chamber 5 and the chamber 6 of breathing in changes thereupon to realize gaseous intake, compression and exhaust circulation, and then guarantee compressor 10's normal work.

Further, as shown in fig. 1, the compression chamber 5 has an exhaust port 51, the suction port 61 communicates with the suction chamber 6, when the compressor 10 operates, when the piston 3 rotates to start to extrude the space in the compression chamber 5, at this time, the space in the suction chamber 6 gradually increases, the gas enters the suction chamber 6 from the suction port 61, thereby completing the compression and intake process of the gas, when the piston 3 moves to the top dead center position of the compression chamber 5 (the position of the piston 3 shown in fig. 5), the compressed gas is discharged from the exhaust port 51 out of the compression chamber 5, at this time, the piston 3 completes a working cycle of intake, compression and exhaust, and as the piston 3 continuously rotates, thereby realizing the compression operation of the compressor 10.

Further, the thickness of the sliding sheet body 41 may be a, the thickness of the relief portion 42 may be B, and A, B satisfies the relationship: the thickness A of the positioning portion 42 is less than the thickness B of the sliding sheet body portion 41, and satisfies the following relation: the thickness B of the slide body 41 is 21-75% of the thickness A of the positioning portion 42.

In the specific embodiment, when the compressor 10 operates, since the sliding vane 4 reciprocates, the piston 3 rotates, and the sliding vane head 43 is hinged to the piston 3, when the piston 3 rotates, a gap between an edge of the sliding vane mating hole 31 of the piston 3 and the abdicating portion 42 of the sliding vane 4 changes, wherein when the piston 3 is at the top dead center position, the gap between the edge of the sliding vane mating hole 31 and the abdicating portion 42 of the sliding vane 4 reaches a minimum value or even a negative value (i.e., the abdicating portion 42 of the sliding vane 4 interferes with the piston 3), so that the movement of the piston 3 is interfered, the power of the compressor 10 is reduced, and the service life of the compressor 10 is seriously affected.

Therefore, the thickness B of the relief portion 42 is set to be smaller than the thickness a of the slide body portion 41, and the thickness B of the relief portion 42 and the thickness a of the slide body portion 41 satisfy the relation: b is more than or equal to 21% A and less than or equal to 75% A, and the gap between the piston 3 and the abdicating part 42 can be increased, so that the interference between the piston 3 and the sliding sheet 4 during the movement can be effectively avoided, and the normal work of the compressor 10 is ensured.

In a specific embodiment, the thickness B of the relief portion 42 may be 30% of the thickness a of the vane body portion 41, i.e. B is 30% a; of course, the thickness B of the positioning portion 42 may be 70% of the thickness a of the slider body portion 41, that is, B may be 70% a. Further, the relationship between the thickness B of the relief portion 42 and the thickness a of the vane body portion 41 is not limited to the above embodiment.

According to the compressor 10 provided by the embodiment of the invention, the sliding vane head part 43 is hinged with the piston 3, so that the sliding vane 4 is connected with the piston 3, the normal work of the sliding vane 4 can be ensured, and the thickness B of the yielding part 42 of the sliding vane 4 and the thickness A of the sliding vane body part 41 satisfy the relation: b is more than or equal to 21% A and less than or equal to 75% A, and the gap between the piston 3 and the abdicating part 42 can be increased, so that the interference between the piston 3 and the sliding sheet 4 during the movement can be effectively avoided, and the normal work of the compressor 10 is ensured.

Further, as shown in fig. 3, the diameter of the slider head 43 may be Db, A, Db satisfying the relation: db is less than or equal to 90% A, that is, the thickness A of the slide body 41 is greater than the diameter Db of the slide head 43, and the thickness A of the slide body 41 and the diameter Db of the slide head 43 satisfy the relation: db is less than or equal to 90% A, namely the diameter Db of the sliding sheet head part 43 is not more than 90% of the thickness A of the sliding sheet body part 41, so that the sliding sheet body part 41 can have certain structural strength, the sliding sheet 4 is prevented from being bent or broken due to insufficient strength when in work, and the working reliability of the sliding sheet 4 is high.

In a particular embodiment, the thickness a of the slider body portion 41 may be 80% of the diameter Db of the slider head portion 43, i.e. Db is 80% a; of course, the thickness a of the slider body portion 41 may be 30% of the diameter Db of the slider head portion 43, that is, Db is 30% a, and the relationship between the diameter Db of the slider head portion 43 and the thickness a of the slider body portion 41 is not limited to the above embodiment.

Further, as shown in fig. 3, B, Db satisfies the relationship: db is more than or equal to 1.2B, i.e. the diameter Db of the slide head 43 is larger than the thickness B of the relief portion 42, and the diameter Db of the slide head 43 and the thickness B of the relief portion 42 satisfy the relation: db is more than or equal to 1.2B, that is, the diameter Db of the slide sheet head part 43 is not less than 1.2 times of the thickness B of the relief part 42, so that the interference between the piston 3 and the slide sheet 4 during the movement can be more optimally prevented, and the normal operation of the compressor 10 is ensured.

In a particular embodiment, the diameter Db of the slip sheet head 43 may be 1.5 times the thickness B of the relief 42, i.e., Db ═ 1.5B; of course, the diameter Db of the slip head 43 may be 3 times the thickness B of the relief 42, that is, Db is 3B, and the relationship between the diameter Db of the slip head 43 and the thickness B of the relief 42 is not limited to the above-described embodiment.

In summary, A, B and Db satisfy the relationship: db is more than or equal to 1.2B and less than or equal to 90 percent A, namely the diameter Db of the slide head part 43 is less than or equal to 90 percent of the thickness A of the slide body part 41 and is more than or equal to 1.2 times of the thickness of the relief part 42. Not only can guarantee that piston 3 is when rotating, the edge of the gleitbretter mating holes 31 of piston 3 can not take place to interfere with the portion 42 of stepping down of gleitbretter 4, can also guarantee that gleitbretter 4 has certain intensity, guarantees that the operational reliability of gleitbretter 4 is high.

Further, as shown in fig. 3-4, the height of the sliding piece 4 is H, H, Db satisfies the relation: H/Db is more than or equal to 1.8 and less than or equal to 7.5, namely the ratio of the height H of the slide sheet 4 to the diameter Db of the slide sheet head part 43 is between 1.8 and 7.5, namely, the size difference between the diameter Db of the slide sheet head part 43 and the height H of the slide sheet 4 is not too large, so that the manufacturing difficulty of the slide sheet 4 can be reduced.

In a specific embodiment, the ratio of the height H of the slider 4 to the diameter Db of the slider head 43 may be 2, i.e. H/Db is 2; of course, the ratio of the height H of the slider 4 to the diameter Db of the slider head 43 may be 7, i.e., H/Db is 7, and the relationship between the height H of the slider 4 and the diameter Db of the slider head 43 is not limited to the above-described embodiment.

Specifically, as shown in fig. 3-4, the length of the slider 4 is L, L, B satisfies the relation: b < 30% L, namely the length L of the slide piece 4 is larger than the thickness B of the position-giving part 42, and the length L of the slide piece 4 and the thickness B of the position-giving part 42 satisfy the relation: b < 30% L, i.e. the thickness B of the bit 42 is less than 30% of the length L of the slider 4. Therefore, it is possible to prevent the sliding piece 4 and the piston 3 from being easily moved and interfered by the oversize thickness B of the relief portion 42, and it is also possible to prevent the relief portion 42 from being broken when the dimension B is oversize, and further, since the sliding piece 4 is used to separate the compression chamber 5 and the suction chamber 6, if the thickness B of the relief portion 42 is excessively reduced, the end face of the relief portion 42 is easily leaked. Therefore, the length L of the slider 4 and the thickness B of the relief portion 42 satisfy the relationship: b is less than 30 percent L, so that the interference phenomenon between the sliding sheet 4 and the piston 3 can be avoided, and the leakage phenomenon on the end face of the position-letting part 42 can be avoided.

In a particular embodiment, the thickness B of the relief 42 may be 25% of the length L of the slip 4, i.e. B ═ 25% L; of course, the thickness B of the relief portion 42 may be 15% L of the length L of the slider 4, that is, B is 15% B, and the relationship between the thickness B of the relief portion 42 and the length L of the slider 4 is not limited to the above embodiment.

Further, as shown in fig. 3-4, L, Db satisfies the relationship: db is less than or equal to 40% L, namely the length L of the slide 4 is greater than the diameter Db of the slide head 43, and the length L of the slide 4 and the diameter Db of the slide head 43 satisfy the relation: db ≦ 40% L, i.e., the diameter Db of the slider head 43 is not greater than 40% of the length L of the slider 4.

Specifically, the vane head 43 of the vane 4 is located in the vane fitting hole 31, the vane body 41 is located in the vane slot 2, and since the crankshaft of the compressor 10 has an eccentric portion, the vane body 41 may extend out of the vane slot 2 when the compressor 10 is in operation, wherein the amount of extension of the vane body 41 from the vane slot 2 is 2 times of the eccentric amount of the crankshaft, so when the diameter Db of the vane head 43 is too large, the amount of extension is large, and the power consumption of the compressor 10 is increased, therefore, the relationship between the length L of the vane 4 and the diameter Db of the vane head 43 is satisfied: db is less than or equal to 40 percent L, so that the stress of the slide sheet 4 can be improved, the power consumption of the compressor 10 is reduced, and the performance of the compressor 10 is improved.

Specifically, as shown in fig. 2, the slide sheet matching hole 31 may be a major arc hole, and the slide sheet head 43 is in surface-to-surface fit with the slide sheet matching hole 31, so as to ensure that the stability of the fit between the slide sheet head 43 and the slide sheet matching hole 31 is good, and prevent the compressor 10 from causing large impact between the slide sheet head 43 and the slide sheet matching hole 31 during operation.

Preferably, the size of the slide mating hole 31 is slightly larger than the diameter Db of the slide head 43, thereby ensuring that the slide head 43 can rotate in the slide mating hole 31, and not causing the slide head 43 to disengage from the slide mating hole 31, thereby enabling the hinge connection of the slide mating hole 31 and the slide head 43.

It should be noted that, in the specific embodiment, the engine oil may be filled in a gap between the vane mating hole 31 and the vane head 43, so as to form a dynamic pressure oil film at a contact portion between the vane mating hole 31 and the vane head 43, thereby ensuring that friction between the vane mating hole 31 and the vane head 43 is small, and further facilitating improvement of the power of the compressor 10.

Further, as shown in fig. 2, the two ends of the sliding piece matching hole 31 are provided with an avoiding edge 311 for avoiding the avoiding portion 42, that is, the avoiding portion 42 of the sliding piece 4 is matched with the sliding piece matching hole 31, and a gap is formed between the two ends of the sliding piece matching hole 31 and the avoiding portion 42, so that the avoiding portion 42 of the sliding piece 4 is ensured not to interfere with the piston 3, and the reliability of the operation of the compressor 10 is ensured to be high.

A refrigeration apparatus according to another aspect of the present invention includes the compressor 10 described above.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A compressor, comprising:

the inner wall of the cylinder is provided with an air suction port and a sliding sheet groove;

the piston is positioned in the cylinder and is suitable for eccentric rotation along the inner wall of the cylinder;

the piston is sleeved on the eccentric part of the crankshaft;

a slider, the slider comprising: the slide sheet groove is at least partially positioned in the slide sheet groove, the slide sheet head is connected with the piston so as to form a compression cavity and a suction cavity in the cylinder, the compression cavity is provided with a discharge port, the suction port is communicated with the suction cavity, the thickness of the slide sheet body is A, the thickness of the escape part is B, and A, B meets the following relational expression: the B is more than or equal to 21 percent and less than or equal to 75 percent.

2. The compressor of claim 1, wherein the piston defines a vane mating bore, and the vane head is adapted to be positioned within the vane mating bore.

3. The compressor of claim 2, wherein the diameter of the vane head is Db, A, Db satisfies the relationship: db is less than or equal to 90 percent of A.

4. A compressor as set forth in claim 3, wherein B, Db satisfies the relationship: db is more than or equal to 1.2B.

5. The compressor of claim 4, wherein the height of the vane is H, H, Db satisfies the relationship: H/Db is more than or equal to 1.8 and less than or equal to 7.5.

6. The compressor of claim 4, wherein the length of the vane is L, L, B satisfies the relationship: b is less than 30 percent of L.

7. The compressor of claim 6, wherein L, Db satisfies the relationship: db is less than or equal to 40 percent L.

8. The compressor of claim 2, wherein the vane mating hole is a major arc hole, and the vane head is surface-to-surface mated with the vane mating hole.

9. The compressor of claim 8, wherein both ends of the vane fitting hole have an escape edge for escaping the escape portion.

10. A refrigerating device, characterized by comprising a compressor according to any one of claims 1-9.