CN114876762A

CN114876762A - Air conditioner compressor for new energy automobile

Info

Publication number: CN114876762A
Application number: CN202210819684.2A
Authority: CN
Inventors: 程亮; 刘楠楠; 代小军; 杜民; 马驰; 邢邦圣; 杨存智; 杨道龙; 孙明权
Original assignee: Jiangsu Huaihai New Energy Vehicle Co ltd
Current assignee: Jiangsu Huaihai New Energy Vehicle Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-08-09

Abstract

The invention relates to the technical field of compressors and discloses an air-conditioning compressor for a new energy automobile, which comprises a compressor shell, a cylinder, a piston, a valve plate, a rotating shaft, a swash plate, an oil tank and an electromagnetic coil, wherein a liquid groove is formed in the inner part of the lower side of the valve plate, a ring groove I is formed in the outer side of the rotating shaft and positioned at a heat conducting strip, and a ring groove II is formed in the outer side of the rotating shaft and positioned at the valve plate. According to the invention, by designing the fixing plate, the liquid bag, the through groove, the annular groove II, the I-shaped groove, the air bag and the iron core, the liquid bag is extruded in the rotating process of the swash plate by utilizing the rotation of the swash plate when the compressor works, so that the magnetic fluid in the liquid bag enters the air bag through the liquid groove and the I-shaped groove, the magnetic fluid is enabled to fill the whole air bag through the magnetic force of the iron core, the air bag is enabled to expand and to be in contact with the inner side wall of the right cylinder cover, the vibration transmitted to the rotating shaft is buffered, and the condition that parts in the compressor are loosened under the influence of the vibration is avoided.

Description

Air conditioner compressor for new energy automobile

Technical Field

The invention relates to the technical field of compressors, in particular to an air-conditioning compressor for a new energy automobile.

Background

The automobile air conditioner compressor is the heart of an automobile air conditioner refrigerating system and plays a role in compressing and conveying refrigerant vapor, the swash plate type compressor is the most widely used one of the automobile air conditioner compressors, the swash plate is driven to rotate mainly through a main shaft, and the piston is pushed to do axial reciprocating motion through the edge of the swash plate, so that the refrigerant is compressed.

However, when the prior swash plate compressor is in use, when the piston reciprocates in the cylinder to extrude and release the refrigerant, so that the air pressure inside the cylinder of the refrigerant is increased when the refrigerant is compressed, the cylinder can vibrate, and the rotating shaft can vibrate in the rotating process, because the vibration can not be eliminated, most of the vibration is transmitted to the rotating shaft, and the compressing effect of the compressor is poor when the rotating shaft works in a vibrating environment for a long time, meanwhile, the internal parts of the compressor can also be loosened and even generate air leakage, so that the service life of the compressor is shortened, secondly, continuous reciprocating motion between the piston and the cylinder can generate a large amount of heat energy, and internal parts of the compressor are in a working environment with high temperature for a long time, so that the aging speed of the internal parts of the compressor is increased, and the compressor cannot be normally used.

Disclosure of Invention

Aiming at the defects of the existing air-conditioning compressor in the use process in the background technology, the invention provides the air-conditioning compressor for the new energy automobile, which has the advantages of reducing the vibration generated when the compressor is used and accelerating the heat dissipation generated by the movement between a piston and a cylinder, and solves the technical problems in the background technology.

The invention provides the following technical scheme: the utility model provides an air condition compressor for new energy automobile, includes compressor housing, cylinder, piston, valve plate, pivot, sloping cam plate, oil tank right side cylinder lid and solenoid, the cistern has been seted up to the inside of valve plate downside, the outside of pivot just is located heat conduction strip department and has seted up annular I, the outside of pivot just is located valve plate department and has seted up annular II, the inside of pivot just is located annular II department and has seted up the industry type groove, the arc wall has been seted up in the inside of pivot and the left side that is located annular II, the outside of pivot just is located the right side fixedly connected with gasbag of valve plate, the inside of pivot just corresponds the fixed iron core that is equipped with in department with solenoid, the bottom fixedly connected with fixed plate of oil tank right side wall, the upside fixedly connected with liquid bag of fixed plate.

Preferably, a heat conducting strip is fixedly arranged inside the lower side wall of the right end of the air cylinder, a magnetic block is fixedly arranged inside the right side of the piston, and the magnetic block corresponds to the heat conducting strip when the piston moves to the rightmost side in the air cylinder.

Preferably, the right side wall of the inner cavity of the liquid bag is fixedly connected with a spring, the middle part of the fixing plate is fixedly connected with a heat conducting rod, and the top of the oil tank and the upper side of the liquid bag are provided with a through groove.

Preferably, the bottom of heat conduction strip stretches into in annular I, annular I is through the short groove department intercommunication of arc wall and worker's type groove, the both ends and the II intercommunications of annular of worker's type groove short groove department, the downside and the cistern intercommunication of annular II, and the cistern passes the inside and the liquid bag switch-on of oil tank.

Preferably, the long groove of the I-shaped groove is communicated with an air bag, the air bag is sleeved on the outer side of the rotating shaft, and the right end of the air bag corresponds to the position of the iron core.

Preferably, the left end face of the liquid sac is located within the rotation range of the swash plate, and the liquid sac is filled with magnetic fluid.

Preferably, the other end of the spring is fixedly connected with the left side wall of the inner cavity of the liquid bag, the top end of the heat conducting rod extends into the liquid bag, and the lower end of the heat conducting rod penetrates through the fixing plate and extends into the oil tank.

Preferably, the top of the through groove is communicated with the bottom of the annular groove I, and the bottom of the through groove is communicated with the liquid bag.

Preferably, the magnetic balls are divided into seven groups, and the seven groups of the magnetic balls are divided into six groups which are uniformly distributed on the axial side wall of the inner hole of the right cylinder cover.

The invention has the following beneficial effects:

1. according to the invention, by designing the fixing plate, the liquid bag, the through groove, the annular groove II, the I-shaped groove, the air bag and the iron core, the liquid bag is extruded in the rotating process of the swash plate by utilizing the rotation of the swash plate when the compressor works, so that the magnetic fluid in the liquid bag enters the air bag through the liquid groove and the I-shaped groove, the magnetic fluid is enabled to fill the whole air bag through the magnetic force of the iron core, the air bag is enabled to expand and contact with the inner side wall of the right cylinder cover, the vibration generated by the rotating shaft and the air cylinder when the compressor works is converted into the extrusion of the air bag by the right cylinder cover, the vibration transmitted to the rotating shaft is buffered, and the condition that parts in the compressor are loosened under the influence of the vibration is avoided.

2. According to the invention, by designing the heat conducting strip, the magnetic block, the annular groove I, the I-shaped groove and the arc-shaped groove, when the right piston moves to the bottom of the cylinder in the working process of the compressor, heat on the piston is transmitted to the heat conducting strip through the contact of the heat conducting strip and the piston, and at the moment, part of magnetic fluid enters the annular groove I through the arc-shaped groove by utilizing the adsorption of the magnetic block to the magnetic fluid, the magnetic fluid in the annular groove I is attached to the heat conducting strip through the magnetic force of the magnetic block, and the magnetic force of the heated magnetic fluid is reduced, so that the heated magnetic fluid falls down, at the moment, the magnetic block can adsorb the unheated magnetic fluid to enter the annular groove I, and the heated falling magnetic fluid flows back to the liquid bag through the through groove, and the emission of the heat generated at the cylinder and the piston is accelerated.

3. According to the invention, through the design of the annular groove I, the liquid bag, the spring, the heat conducting rod and the through groove, the heated magnetic fluid enters the liquid bag through the design of the through groove, the heat on the magnetic fluid is conducted into the oil tank through the heat conducting rod, the heat of the magnetic fluid is cooled through lubricating oil, and the cooled magnetic fluid can continuously enter the annular groove I under the action of the magnetic block through the I-shaped groove and the arc-shaped groove and cools the heat at the cylinder and the piston, so that the compressor can be cooled in time in the working process, the aging speed of parts in the compressor is slowed down, and the service life of the compressor is prolonged.

4. According to the invention, by designing the liquid bag, the through groove, the annular groove II, the I-shaped groove, the air bag, the iron core and the magnetic ball, the magnetic fluid enters the air bag under the action of the iron core and promotes the expansion of the air bag, the expanded air bag is contacted with the magnetic ball, so that the rotating shaft cannot be subjected to the frictional resistance between the air bag and the right cylinder cover in the rotating process, and meanwhile, the uniformly distributed magnetic ball is utilized to promote the magnetic fluid in the air bag to be uniformly distributed in the air bag, so that the expansion of the air bag is uniform, and the vibration of the rotating shaft is further buffered better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the piston of the present invention in a post-movement state;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is a schematic structural view of the section of the rotating shaft and the airbag of the present invention.

In the figure: 1. a compressor housing; 2. a left cylinder head; 3. a cylinder; 31. a heat conducting strip; 4. a piston; 41. a magnetic block; 5. a valve plate; 51. a liquid bath; 6. a rotating shaft; 61. a ring groove I; 62. a ring groove II; 63. a tool-shaped groove; 64. an arc-shaped slot; 65. an air bag; 66. an iron core; 7. a swash plate; 8. an oil tank; 81. a fixing plate; 82. a liquid sac; 83. a spring; 84. a heat conducting rod; 85. a through groove; 9. a right cylinder head; 91. a magnetic ball; 10. an electromagnetic armature; 11. an electromagnetic coil; 12. a pulley; 13. an electromagnetic clutch; 14. an air inlet; 15. and an air outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 and 2, an air conditioning compressor for a new energy automobile comprises a compressor housing 1, a left cylinder cover 2 is fixedly installed on the left side of the compressor housing 1, a cylinder 3 is fixedly installed on the top of an inner cavity of the compressor housing 1, a piston 4 is movably installed inside the cylinder 3, a valve plate 5 is fixedly installed on the right side of the inner cavity of the compressor housing 1, a rotating shaft 6 is rotatably installed in the middle of the left cylinder cover 2 and penetrates through the compressor housing 1, a swash plate 7 is fixedly sleeved outside the rotating shaft 6 and is located in the middle of the cylinder 3, an oil tank 8 is fixedly installed at the bottom of the inner cavity of the compressor housing 1, a right cylinder cover 9 is fixedly installed on the right side of the compressor housing 1, an electromagnetic armature 10 is movably sleeved outside the right end of the right cylinder cover 9, an electromagnetic coil 11 is fixedly installed inside the electromagnetic armature 10, a belt pulley 12 is fixedly sleeved outside the electromagnetic armature 10, the electromagnetic clutch 13 is fixedly sleeved in the middle of the electromagnetic armature 10, an air inlet 14 is formed in the side wall of the compressor housing 1 and located on the right side of the air cylinder 3, an air outlet 15 is formed in the side wall of the compressor housing 1 and located on the left side of the air inlet 14, air inlets 14 and air outlets 15 are formed in the two ends of the compressor housing 1 located on the air cylinder 3, and an air inlet valve plate and an air outlet valve plate are arranged at the positions of the air inlets 14 and the air outlets 15 respectively.

Referring to fig. 1, 2, 3 and 4, a heat conducting strip 31 is fixedly arranged inside the lower side wall of the right end of the cylinder 3, a magnetic block 41 is fixedly arranged inside the right side of the piston 4, when the piston 4 moves to the rightmost side in the cylinder 3, the magnetic block 41 corresponds to the heat conducting strip 31 in position, so that the magnetic block 41 adsorbs magnetic fluid and causes the magnetic fluid to adhere to the heat conducting strip 31, it is ensured that heat on the heat conducting strip 31 is absorbed by the magnetic fluid, a liquid groove 51 is arranged inside the lower side of the valve plate 5, a circular groove i 61 is arranged outside the rotating shaft 6 and at the position of the heat conducting strip 31, the bottom of the heat conducting strip 31 extends into the circular groove i 61, a circular groove ii 62 is arranged outside the rotating shaft 6 and at the position of the valve plate 5, the lower side of the circular groove ii 62 is communicated with the liquid groove 51, it is ensured that the magnetic fluid can enter the circular groove ii 62 through the liquid groove 51, an i-shaped groove 63 is arranged inside the rotating shaft 6 and at the position of the circular groove ii 62, two ends of the short groove 63 are communicated with the circular groove ii 62, so that the magnetic fluid in the annular groove II 62 can be transmitted to the inside of the tool-shaped groove 63, the arc-shaped groove 64 is formed in the inner portion of the rotating shaft 6 and positioned on the left side of the annular groove II 62, the annular groove I61 is communicated with the short groove of the tool-shaped groove 63 through the arc-shaped groove 64, the air bag 65 is fixedly connected to the outer side of the rotating shaft 6 and positioned on the right side of the valve plate 5, the long groove of the tool-shaped groove 63 is communicated with the air bag 65, the air bag 65 is sleeved on the outer side of the rotating shaft 6 to ensure that the magnetic fluid in the tool-shaped groove 63 enters the air bag 65 to enable the air bag 65 to expand and further buffer vibration, the iron core 66 is fixedly arranged in the inner portion of the rotating shaft 6 and corresponding to the electromagnetic coil 11, the right end of the air bag 65 corresponds to the position of the iron core 66, so that the magnetic fluid can fill the whole air bag 65 under the action of the magnetic force of the iron core 66, the bottom of the right side wall of the oil tank 8 is fixedly connected with the fixing plate 81, the upper side of the fixing plate 81 is fixedly connected with the liquid bag 82, the left end face of the liquid bag 82 is located in the rotation range of the swash plate 7, the liquid bag 82 is filled with magnetic fluid, the swash plate 7 can be enabled to extrude the liquid bag 82 when rotating, the magnetic fluid is enabled to enter the liquid tank 51, the liquid tank 51 penetrates through the inside of the oil tank 8 to be communicated with the liquid bag 82, the right side wall of the inner cavity of the liquid bag 82 is fixedly connected with a spring 83, the other end of the spring 83 is fixedly connected with the left side wall of the inner cavity of the liquid bag 82, the liquid bag 82 is convenient to restore after being extruded, the middle of the fixing plate 81 is fixedly connected with a heat conducting rod 84, the top end of the heat conducting rod 84 extends into the liquid bag 82, the lower end of the heat conducting rod 84 penetrates through the fixing plate 81 to extend into the oil tank 8, lubricating oil in the oil tank 8 is used for cooling the heat conducting rod 84, a through groove 85 is formed in the top of the oil tank 8 and located on the upper side of the liquid bag 82, the top of the through groove 85 is communicated with the bottom of the annular groove I61, the bottom of the through groove 85 is communicated with the liquid bag 82, in can flowing back the sac 82 through groove 85, realize the circulation of magnetic matter fluid convenient to be heated in I61 annular, magnetic ball 91 divide into seven groups, seven groups magnetic ball 91 divide into every group six and is evenly distributed on the axial side wall in right cylinder head 9 hole, the inside magnetic matter fluid's of gasbag 65 evenly distributed of being convenient for to the produced vibration of better realization countershaft 6 cushions (vehicle air conditioner compressor's best operating temperature scope is 70 degrees centigrade to 90 degrees centigrade, and its magnetic force of magnetic matter fluid can weaken along with the rising of temperature when the temperature is higher than 60 degrees centigrade).

Referring to fig. 1, 2, 3 and 4, when the compressor is normally used, the swash plate 7 is driven to rotate by the rotation of the rotating shaft 6, so that the swash plate 7 continuously extrudes the liquid bag 82, the magnetic fluid in the liquid bag 82 enters the tool-shaped groove 63 through the liquid tank 51, at this time, the iron core 66 is in the range of the electromagnetic coil 11, and the energization of the electromagnetic coil 11 drives the iron core 66 to be magnetized, so that the magnetic fluid in the tool-shaped groove 63 enters the air bag 65 under the magnetic force of the iron core 66, the air bag 65 expands, the vibration generated during the operation of the compressor is buffered by the expanded air bag 65, meanwhile, the expanded air bag 65 is in contact with the magnetic ball 91, so that the friction generated between the rotating shaft 6 and the right cylinder head 9 when the air bag 65 is driven to rotate is converted into rolling friction, and the magnetic fluid in the air bag 65 can be uniformly distributed in the air bag 65 by the action of the magnetic ball 91, promote gasbag 65 inflation evenly, thereby better realization cushions the vibration that shaft 6 produced, prevent that the inside part of compressor housing 1 from receiving the vibration influence to take place to become flexible, the condition of gas leakage even appears, simultaneously when piston 4 moves to the inside right side of cylinder 3, utilize the contact of piston 4 and heat conduction strip 31, make the heat on the piston 4 transmit to heat conduction strip 31, and at this moment because the effect of magnet 41 makes the inside part magnetic matter fluid of worker's groove 63 get into annular I61 and adhere to on heat conduction strip 31, make heat conduction strip 31 transmit the heat to the magnetic matter fluid, because the magnetic property of the magnetic matter fluid after the heating reduces, make the magnetic matter fluid that adheres to on heat conduction strip 31 fall down by self gravity, and get into liquid bag 82 through groove 85 inside, the magnetic matter fluid that heats in liquid bag 82 transmits the heat to the oil tank in through heat conduction rod 84 and utilizes lubricating oil to cool down, simultaneously, after the cooling is realized to right side cylinder 3 and piston 4, its right side cylinder 3 and piston 4's heat is far less than left side cylinder 3 and piston 4, make right side cylinder 3 and piston 4 can adsorb the heat of left side cylinder 3 and piston 4 through piston 4, thereby realize the cooling of whole cylinder 3 and piston, avoid the inside part of compressor housing 1 to be heated ageing-accelerated, secondly, utilize the effect of spring 83 to make the liquid bag 82 receive can be continuous after the extrusion to resume, and then make the effect that the magnetic mass fluid received magnetic path 41 can cool down heat conduction strip 31 always.

The using method of the invention has the following working principle:

firstly, the air-conditioning compressor is started, the rotating shaft 6 of the compressor rotates to drive the swash plate 7 to rotate, the swash plate 7 rotates to continuously extrude the liquid bag 82, so that the magnetic fluid in the liquid bag 82 enters the work-shaped groove 63 through the liquid groove 51, at the moment, the iron core 66 is magnetized by utilizing the electrifying state of the electromagnetic coil 11 because the iron core 66 is positioned in the range of the electromagnetic coil 11, the magnetic fluid in the work-shaped groove 63 enters the air bag 65 under the magnetic force of the iron core 66 and causes the air bag 65 to expand, then the piston 4 is driven to reciprocate in the air cylinder 3 through the rotation of the swash plate 7, when the piston 4 moves to the right side of the air cylinder 3, the piston 4 is contacted with the heat conducting strip 31, so that the heat is transmitted to the heat conducting strip 31, at the moment, the magnetic force of the magnetic block 41 is utilized to cause part of the magnetic fluid in the work-shaped groove 63 to enter the annular groove I61 through the arc-shaped groove 64, so that the heat on the heat conducting strip 31 is transmitted to the magnetic fluid in the annular groove I61, the heated magnetic fluid flows back into the liquid bag 82 through the through groove 85, and the heat of the heated magnetic fluid in the liquid bag 82 is transmitted to the lubricating oil through the heat conduction rod 84 to be cooled.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an air condition compressor for new energy automobile, includes compressor housing (1), cylinder (3), piston (4), valve plate (5), pivot (6), sloping cam plate (7), oil tank (8), right cylinder head (9) and solenoid (11), its characterized in that: a liquid tank (51) is arranged in the lower side of the valve plate (5), a ring groove I (61) is arranged on the outer side of the rotating shaft (6) and at the position of the heat conducting strip (31), a ring groove II (62) is arranged at the outer side of the rotating shaft (6) and is positioned on the valve plate (5), an I-shaped groove (63) is formed in the rotating shaft (6) and positioned at the annular groove II (62), an arc-shaped groove (64) is formed in the rotating shaft (6) and positioned on the left side of the ring groove II (62), an air bag (65) is fixedly connected with the outer side of the rotating shaft (6) and positioned at the right side of the valve plate (5), an iron core (66) is fixedly arranged in the rotating shaft (6) and at the position corresponding to the electromagnetic coil (11), the bottom of the right side wall of the oil tank (8) is fixedly connected with a fixed plate (81), the upside fixedly connected with liquid bag (82) of fixed plate (81), the inboard wall of right cylinder head (9) just is located gasbag (65) department activity mosaics and has magnetic ball (91).

2. The air conditioner compressor for the new energy automobile according to claim 1, characterized in that: the inside of the lower side wall of the right end of the air cylinder (3) is fixedly provided with a heat conducting strip (31), the inside of the right side of the piston (4) is fixedly provided with a magnetic block (41), and the magnetic block (41) corresponds to the heat conducting strip (31) when the piston (4) moves to the rightmost side in the air cylinder (3).

3. The air conditioner compressor for the new energy automobile according to claim 1, characterized in that: the right side wall of the inner cavity of the liquid sac (82) is fixedly connected with a spring (83), the middle of the fixing plate (81) is fixedly connected with a heat conducting rod (84), and the top of the oil tank (8) and the upper side of the liquid sac (82) are provided with a through groove (85).

4. The air conditioner compressor for the new energy automobile according to claim 2, characterized in that: the bottom of heat conduction strip (31) stretches into in I (61) of annular, I (61) of annular communicate through the short groove department of arc wall (64) and worker's groove (63), both ends and II (62) intercommunications of annular of worker's groove (63) short groove department, the downside and cistern (51) of annular II (62) communicate, and inside and the sac (82) switch-on that cistern (51) passed oil tank (8).

5. The air conditioner compressor for the new energy automobile according to claim 1, characterized in that: the long groove of the I-shaped groove (63) is communicated with an air bag (65), the air bag (65) is sleeved on the outer side of the rotating shaft (6), and the right end of the air bag (65) corresponds to the position of the iron core (66).

6. The air conditioner compressor for the new energy automobile according to claim 1, characterized in that: the left end face of the liquid bag (82) is positioned in the rotating range of the swash plate (7), and the liquid bag (82) is filled with magnetic fluid.

7. The air conditioner compressor for the new energy automobile according to claim 3, characterized in that: the other end of the spring (83) is fixedly connected with the left side wall of the inner cavity of the liquid sac (82), the top end of the heat conducting rod (84) extends into the liquid sac (82), and the lower end of the heat conducting rod (84) penetrates through the fixing plate (81) and extends into the oil tank (8).

8. The air conditioner compressor for the new energy automobile according to claim 3, characterized in that: the top of the through groove (85) is communicated with the bottom of the annular groove I (61), and the bottom of the through groove (85) is communicated with the liquid bag (82).

9. The air conditioner compressor for the new energy automobile according to claim 3, characterized in that: the magnetic balls (91) are divided into seven groups, and the seven groups of the magnetic balls (91) are divided into six groups which are uniformly distributed on the axial side wall of the inner hole of the right cylinder cover (9).