CN2688923Y

CN2688923Y - Compressor of vehicle air conditioner

Info

Publication number: CN2688923Y
Application number: CN 200420026238
Authority: CN
Inventors: 陈培清
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-13
Filing date: 2004-04-13
Publication date: 2005-03-30
Anticipated expiration: 2014-04-13

Abstract

The utility model belongs to a compressor of vehicle air conditioner. According to the design scheme offered by the utility model, both ends of a cylinder body are respectively connected with a front and a back covers; a main shaft is respectively arranged at the middle part of both ends of the cylinder body by making use of a bearing; the end part of the main shaft is connected with a suction cup component after one end of the main shaft extending the front cover; the front end of the front cover is arranged with a belt pulley by making use of a bearing; an electromagnetic component is provided in the belt pulley. The inner part of the cylinder body is uniformly divided into a plurality of cylindrical cavities; the central line of each cavity is respectively parallel to the central line of the cylinder body; both ends of each cavity form a sliding fit with both ends of a piston. A flute is positioned on the inner wall of the central part of each piston; a steel ball is respectively embedded on the wall of two radial slots of the flute. A sloping plate is arranged on the main shaft positioned in the cylinder body; the external end of the sloping plate is respectively in sliding connection with a sliding track coated on the steel ball. The utility model can improve the quality of the compressor and avoid the problems of moving component seizure, leakage and piston break, etc.

Description

Automobile air conditioner compressor

Technical field

The utility model belongs to the air condition compressor on a kind of automobile, refers in particular to a kind of swash plate Reciprocting piston compressor.

Background technique

Automobile air conditioner compressor is the main frame that is installed in the various large and medium bus air-conditioning systems.The working environment of this compressor is more abominable, must stand wind and weather and high vibration, and is relatively harsher to product technology and quality requirement.For this reason, claimed structure compactness, energy consumption are low when manufacturing and designing, and part requires durable in use, and long service life is to be fit to various bad working environment and various weather.This machine mainly is made up of body part, magnetic clutch part, high low pressure turnover discharge portion.In the prior art,, therefore tend to occur problems such as movement parts is killed easily, piston fracture, cause freezing medium leakage, make energy specific consumption bigger because the structural design of cylinder body is unreasonable.

Summary of the invention

The purpose of this utility model is to design a kind of automobile air conditioner compressor, to improve the quality of compressor, avoids problems such as movement parts is killed, leakage, piston fracture.

According to design proposal provided by the utility model, cylinder body is by preceding, rear-bank rotor housing interconnects and forms, before the two ends of cylinder body connect respectively, bonnet, middle part, two ends at cylinder body utilizes the Bearing Installation main shaft respectively, after one end of main shaft stretches out protecgulum, connect Suction cup assembly in its end, front end at protecgulum utilizes the Bearing Installation belt pulley, electromagnet assembly is arranged in belt pulley, electromagnet assembly can contact with Suction cup assembly, it is characterized in that: be separated into a plurality of cylindrical cavities equably in the cylinder body, the center line of each cavity is parallel with the center line of cylinder body respectively, be slidingly matched with the two ends of piston respectively at the two ends of each cavity, each middle of piston inwall is provided with groove, radially inlay steel ball respectively on the cell wall for two at groove, swash plate is installed being positioned on the main shaft of cylinder body, the outer end of swash plate is slidingly connected with the crawler shoe that is enclosed within on the steel ball respectively.

Forward and backward valve board assembly and forward and backward Cover Gasket sheet are set respectively between cylinder body and forward and backward lid, suction valve chip is set respectively on forward and backward valve board assembly.

Rear end at main shaft connects the oil pump external gear, this oil pump external gear and the oil pump internal gear engagement that is installed on the bonnet.

The utility model has the advantages that: because cylinder body is separated into a plurality of cavitys equably, form a plurality of cylinder sleeves, piston in each cylinder sleeve all utilizes 1 by the driving of main shaft drive swash plate, therefore structure is compact rationally, manufacturing, installation and maintenance are all more convenient, especially can avoid problems such as leakage, thereby save the energy.

Description of drawings

Fig. 1 is a structural drawing of the present utility model.

Among the figure 1 is for transferring feeler; be used to adjust the gap of Suction cup assembly 47; 2 is the back-up ring of rigid bearing; 3 is the lip sealing assembly; seal at

main shaft

49 and 5 of protecgulums; 4 is the electromagnet screw; 5 is protecgulum, and 6 is the protecgulum pad, and 7 for before being positioned at; O-ring seals between bonnet and cylinder body; 8 for being installed on the piston ring between piston and cylinder body; 9 is piston, and 10 is steel ball, and 11 is high-voltage switch gear; 12 is crawler shoe; 13 is plug cock, and 14 is the plug cock O-ring seals, and 15 is exhaust joint; 16 is protective cap; 17 is the protective cap rubber cushion, and 18 is bonnet, and 19 is suction valve chip; 20 is the bonnet pad; 21 is the oil pump internal gear, and 22 is the oil pump external gear, and 23 is the back valve board assembly; 24 is swash plate; 25 is rear-bank rotor housing, 30 be before; pin between rear-bank rotor housing, 31 is the cylinder body seal ring; 35 is front-bank rotor housing; 37 for before connecting; the bolt of rear-bank rotor housing, 38 is packing ring, 40 for connect cylinder body with before; the bolt of bonnet; 42 is preceding valve board assembly; 43 is belt pulley, and 44 is electromagnet assembly, and 45 for being positioned at the thrust-bearing between swash plate and cylinder body; 46 for being positioned at the needle bearing between main shaft and cylinder body; 47 is the Suction cup assembly in the magnetic clutch, and 48 for connecting the bolt of Suction cup assembly and main shaft, and 49 is main shaft; 50 is the cavity in the cylinder body, and 51 is the groove on the piston.

Embodiment

As shown in the figure: cylinder body is by preceding, rear-

bank rotor housing

35,25 interconnect and form, before the two ends of cylinder body connect respectively,

bonnet

5,18, utilize bearing 46 that main shaft 49 is installed respectively at the middle part, two ends of cylinder body, after one end of main shaft 49 stretches out protecgulum 5, connect Suction cup assembly 47 in its end, front end at protecgulum 5 utilizes Bearing Installation belt pulley 43, electromagnet assembly 44 is arranged in belt pulley 43, electromagnet assembly 44 can contact with Suction cup assembly 47, be separated into a plurality of cylindrical cavities 50 in the cylinder body equably, the center line of each cavity 50 is parallel with the center line of cylinder body respectively, be slidingly matched with the two ends of piston 9 respectively at the two ends of each cavity 5, the middle part inwall of each piston 9 is provided with groove 51, radially inlay steel ball 10 respectively on the cell wall for two at groove 51, swash plate 24 is installed on the main shaft 49 that is positioned at cylinder body, and the outer end of swash plate 24 is slidingly connected with the crawler shoe 12 that is enclosed within on the steel ball 10 respectively.

Forward and backward

valve board assembly

42,23 and forward and backward

Cover Gasket sheet

6,20 are set respectively between cylinder body and forward and backward

lid

5,18, on forward and backward

valve board assembly

42,23, suction valve chip 19 are set respectively.

Rear end at main shaft 49 connects oil pump external gear 22, this oil pump external gear 22 and oil pump internal gear 21 engagements that are installed on the bonnet 18.

When motor drives belt pulley 43 rotations by belt, Automobile air conditioner switch is opened, Suction cup assembly 47 in the magnetic clutch on the compressor is in attracting state with electromagnet assembly 44, the transmission of torque of motor car engine rotating shaft is given the clutch pulley that is pulled together, thereby driving the compressor main shaft 49 that links to each other with Suction cup assembly 47 with spline rotates, drive synchronously the swash plate 24 that is installed on the main shaft 49 again and rotate, 5 piston action that two sides of swash plate 24 drive in the cylinder bodies by the crawler shoe 12 that is in contact with it and steel ball 10 respectively.The two ends of 5 pistons 9 are inserted in 10 sleeve ports in the front and

rear cylinder

35,25 respectively, promptly in 10 cavitys 50, when swash plate 24 rotates, by be close to swash plate 24 both sides, and can be along the crawler shoe 14 and steel ball 10 of these two side slide relative, force 5 pistons 9 to make axially reciprocating in the cavity separately 50 on front and

rear cylinder

35,25 respectively, thereby realize continuous suction and compressed exhaust refrigerant gas.

Claims

1, automobile air conditioner compressor, cylinder body is by preceding, rear-bank rotor housing (35), (25) interconnect and form, before the two ends of cylinder body connect respectively, bonnet (5), (18), middle part, two ends at cylinder body utilizes bearing (46) that main shaft (49) is installed respectively, after one end of main shaft (49) stretches out protecgulum (5), connect Suction cup assembly (47) in its end, front end at protecgulum (5) utilizes Bearing Installation belt pulley (43), electromagnet assembly (44) is arranged in belt pulley (43), electromagnet assembly (44) can contact with Suction cup assembly (47), it is characterized in that: be separated into a plurality of cylindrical cavities (50) in the cylinder body equably, the center line of each cavity (50) is parallel with the center line of cylinder body respectively, be slidingly matched with the two ends of piston (9) respectively at the two ends of each cavity (5), the middle part inwall of each piston (9) is provided with groove (51), radially inlay steel ball (10) respectively on the cell wall for two at groove (51), be positioned at upward installation swash plate (24) of the main shaft of cylinder body (49), the outer end of swash plate (24) is slidingly connected with the crawler shoe (12) that is enclosed within on the steel ball (10) respectively.

2, compressor according to claim 1, it is characterized in that: between cylinder body and forward and backward lid (5), (18), forward and backward valve board assembly (42), (23) and forward and backward Cover Gasket sheet (6), (20) are set respectively, suction valve chip (19) is set respectively on forward and backward valve board assembly (42), (23).

3, compressor according to claim 1 is characterized in that: the rear end at main shaft (49) connects oil pump external gear (22), this oil pump external gear (22) and oil pump internal gear (21) engagement that is installed on the bonnet (18).