CN101749231B

CN101749231B - Integrated electric compressor

Info

Publication number: CN101749231B
Application number: CN2008101840294A
Authority: CN
Inventors: 于德刚; 庞振华
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2008-12-09
Filing date: 2008-12-09
Publication date: 2012-05-30
Anticipated expiration: 2028-12-09
Also published as: CN101749231A

Abstract

The utility model relates to an integrated electric compressor, which comprises a compressor unit, a motor unit with a motor shell, a connecting case, a crankshaft, an end cover and an outgoing line mechanism, wherein the compressor unit and the motor unit are connected into a whole through the connecting case and the crankshaft, and the end cover is closed at the end part of the motor shell; and the outgoing line mechanism is assembled at an opening formed on any one of the motor shell, the connecting case and the end cover in a sealing way, and comprises a metal support assembled at the opening in a sealing way, and a conductive column extending and penetrating through the metal support in an insulating and sealing way. The integrated electrical compressor can complete the manufacture only by simple assembly, thus greatly reducing manufacturing time and improving productivity, and can still ensure sufficient strength and good sealing performance even after being used for a long time.

Description

Integrated electric compressor

Technical field

The present invention relates to a kind of idle call integrated electric compressor.

Background technique

Compressor is the most frequently used a kind of compressed air unit that arrives in domestic air conditioning, the car air conditioner, and it has very important effect as air compression and discharge high temperature and high pressure gas.At present, the integrated electric compressor with compressor and motor become one owing to can under the integrated kind of drive of motor, directly rotate, to reduce the power consumpiton of source motivation, therefore is applied in domestic air conditioning and the car air conditioner just gradually.

A kind of integrated electric compressor is disclosed among the CN200964946Y; As shown in Figure 1; This motor compressor comprises compressor unit 1, has the electric motor units 3 of electric machine casing 2, connects casing 4, bent axle 5, the position transducer with Hall Plate 6 and Hall rotor 7 and end cap 8; Wherein, Said compressor unit 1 connects as one with bent axle 5 through being connected casing 4 with electric motor units 3; Said Hall Plate 6 is fixedly connected on the end of electric machine casing 2, and said Hall rotor 7 is fixedly connected on the bent axle 5, the end of said end cap 8 sealing electric machine casings 2; And on said electric machine casing 2, be formed with perforate; This tapping is equipped with and is used for the sealing conversion lighting outlet mechanism that the electric wire that motor compressor is inner extracts, and said sealing is changed lighting outlet mechanism and comprised sealing clamp 9 and seal joint 10, and said sealing clamp 9 is fixed on the said tapping of electric machine casing 2 and has counterbore; The lighting outlet that is used for being electrically connected motor coil passes from the through hole that the sealing pressing plate of processing with insulating material such as epoxy resin 9 forms, thereby pours in the counterbore of sealing clamp 9 through the semi liquid state insulating material that epoxy resin etc. is flowed then and heating makes its curing form seal joint 10.

Yet; The defective of above-mentioned integrated electric compressor is; Because changing the formation of lighting outlet mechanism, said sealing need carry out embedding with the semi liquid state insulating material that flows; And embedding need be passed through several operations such as heating, embedding, cooling, Pressure testing usually, and is too loaded down with trivial details, therefore will cause manufacturing time long.In addition; Because sealing clamp and seal joint all adopt material such as epoxy resin to process; And motor compressor inside has higher pressure, so use after a period of time the distortion because fatigue of materials lost efficacy; So the intensity of sealing conversion lighting outlet mechanism reduces, sealing reduces, and therefore causes freezing medium leakage easily.

Summary of the invention

The purpose of this invention is to provide a kind of integrated electric compressor that has enough intensity and good sealing property all the time.

Integrated electric compressor provided by the invention comprises compressor unit, has the electric motor units of electric machine casing, connects casing, bent axle, end cap and lighting outlet mechanism; Said compressor unit and electric motor units are through being connected casing and bent axle connects as one; Said end cap seals the end of said electric machine casing; Wherein, The sealing of said lighting outlet mechanism is assemblied in and is formed on electric machine casing, connects the tapping on any one in casing and the end cap; And said lighting outlet mechanism comprises Steel Support and insulation and extends through the conductive pole of Steel Support hermetically, and said Steel Support is assemblied in said tapping through radial dimension to the inclined-plane sealing that this motor compressor outside becomes big periphery gradually.

Integrated electric compressor provided by the invention improves for the sealing conversion lighting outlet mechanism in the existing motor compressor; Make and need not to carry out embedding through a plurality of loaded down with trivial details operations; And only need can accomplish manufacturing through simple assembling; Therefore shorten manufacturing time greatly, improved manufacturing efficiency.Simultaneously, because the lighting outlet mechanism body among the present invention is a Steel Support,, can guarantee still that also it has enough intensity and good sealing property even therefore use through long-time.In addition; Also comprise in the preferred implementation of socket in said lighting outlet mechanism; Owing to adopted the electrical connection form of pegging graft through socket; So motor coil terminal and conductive pole can directly be realized being electrically connected through being plugged in the socket, therefore there is not the problem that need fix the many loose lead of motor compressor inside, but also the direction conversion that can easily realize going between.

Description of drawings

Fig. 1 is the structural representation of disclosed integrated electric compressor among the CN200964946Y;

Fig. 2 is the structural representation of integrated electric compressor provided by the invention;

Fig. 3 is the structural representation of the lighting outlet mechanism in the integrated electric compressor provided by the invention; And

Fig. 4 is that the A of the lighting outlet mechanism shown in Fig. 3 is to floor map.

Embodiment

Below, in conjunction with accompanying drawing, the present invention is described in detail.

As shown in Figure 2; Integrated electric compressor provided by the invention comprises compressor unit 11, has the electric motor units 13 of electric machine casing 12, connects casing 14, bent axle 15 and end cap 16; Wherein, Said compressor unit 11 connects as one with bent axle 15 through being connected casing 14 with electric motor units 13, the end of the said electric machine casing 12 of said end cap 16 sealings.

Specifically, said compressor unit 11 comprises compressor housing 21, fixed scroll 22, moving scroll 23 and eccentric wheel assembly 24.Said electric motor units 13 comprises electric machine casing 12, motor stator 25 and rotor 26.

Wherein, Said compressor housing 21 links to each other with an end of electric machine casing 12 through connecting casing 14; Said end cap 16 for example is connected in the other end of electric machine casing 12 through bolt, thereby makes the inner hermetic cavity body that forms of said integrated electric compressor through compressor housing 21, connection casing 14, electric machine casing 12 and end cap 16.

Said fixed scroll 22 for example is connected through bolt with compressor housing 21.Said moving scroll 23 matches with fixed scroll 22.Said eccentric wheel assembly 24 be assemblied on the bent axle 15 and with moving scroll 23 frictional fit.Therefore the rotation of bent axle 15 can drive eccentric wheel assembly 24 rotations, thereby with needle bearing scroll 23 is got into smooth through this eccentric wheel assembly 24.So, just produced air-breathing, pressurized gas, and the exhaust process of compressor through the cooperation of moving scroll 23 and fixed scroll 22.

Said motor stator 25 is fixedly connected with electric machine casing 12, for example is fitted on the electric machine casing 12.The motor coil terminal energising of said motor stator 25 through being attached thereto.Said rotor 26 is supported in motor stator 25 inboards, and is assemblied on the bent axle 15, for example with bent axle 15 interference fit.One end of said bent axle 15 for example through rolling bearing with is connected casing 14 and links to each other, the other end for example passes through needle bearing and links to each other with electric machine casing 12.Therefore, after said motor stator 25 energisings, according to electromagnetic induction principle, rotor 26 begins rotation, rotates thereby drive bent axle 15.

Integrated electric compressor provided by the invention also comprises lighting outlet mechanism 17.17 sealings of said lighting outlet mechanism are assemblied in and are formed on electric machine casing 12, connect the tapping on any one in casing 14 and the end cap 16, are used for terminal or lead that motor compressor is inner and draw.Under the preferable case,, can be formed on the electric machine casing 12 said perforate and near end cap 16 1 sides for the ease of the assembling of this lighting outlet mechanism 17; Like this when carrying out the assembling of motor compressor; Can after lighting outlet mechanism 17 is assembled, connect end cap 16 at last, thereby accomplish encapsulation.Certainly, also can said perforate be formed on the connection casing 14, can further reduce the size of whole motor compressor like this.

Like Fig. 3 and shown in Figure 4; Said lighting outlet mechanism 17 comprises that sealing is assemblied in Steel Support 19 and the insulation of said tapping and extends through the conductive pole 20 of Steel Support 19 hermetically; Under the preferable case; This lighting outlet mechanism 17 also comprises the socket 18 that is arranged at motor compressor inside, and said conductive pole 20 inserts in these sockets 18.

Wherein, Said socket 18 inside can form along all directions hole of (as along motor compressor axially or radially) as required; So that motor coil terminal and conductive pole 20 are inserted in the said hole, and motor coil terminal and conductive pole 20 are electrically connected to each other in said hole.Through adopting this electrical connection form of pegging graft through socket, on the one hand, no longer there are many leads loose inner when passing through lead and being electrically connected at motor compressor as traditional, therefore no longer need fix lead; On the other hand, the direction that can realize like a cork going between conversion shown in the mode of execution, can make along the axial motor coil terminal of motor compressor and radially draw along motor compressor through conductive pole in for example scheming.

Said Steel Support 19 sealings are assemblied in the perforate that forms on the said electric machine casing 12, and shown in mode of execution among the figure, this Steel Support 19 is sealed and matched through the inclined-plane and the said perforate of periphery.Under the preferable case,, between said Steel Support 19 and perforate, be equipped with seal ring 30 in order further to guarantee the sealing between Steel Support 19 and the perforate.Said seal ring 30 is installed in the groove that is formed on the said perforate inwall, and Steel Support 19 is pushed down seal ring 30, thereby further guarantees the sealing assembling between Steel Support 19 and the perforate, to prevent freezing medium leakage.

Under the preferable case, can stablize and be assemblied in securely in the said perforate, the fixed block 31 on the hole wall that is assemblied in said perforate arranged in the arranged outside of said Steel Support 19 in order to guarantee said Steel Support 19.Said fixed block 31 is lived the exterior edge face of Steel Support 19 through backstop and Steel Support 19 firmly is assemblied in the perforate.Said fixed block 31 can adopt the various structural types that can realize above-mentioned functions as required, for example, can be the backing pin on the hole wall that is fixed in said perforate; Perhaps as selecting; Also can on the hole wall of said perforate, offer draw-in groove, pack into after jump ring is compressed through Circlip tongs in the said draw-in groove, the jump ring inflating clip is in draw-in groove; Thereby can push down Steel Support 19, so that it firmly is assemblied in the said perforate.Under the preferable case, said fixed block 31 adopts the form of jump ring.

Said conductive pole 20 insulate and extends through Steel Support 19 hermetically; For example among Fig. 3 and Fig. 4 shown in the mode of execution; Can on Steel Support 19, form three through holes; Through assembling elastic insulator 32 in said through hole, and conductive pole 20 is connected pass from said elastic insulator, thereby can realize that conductive pole 20 insulate and extends through said Steel Support 19 hermetically.One end of said conductive pole 20 is inserted in the socket 18 with the same motor coil terminal that inserts in the socket 18 and is electrically connected after extending through Steel Support 19, and the other end of conductive pole 20 then passes through outside connector assembly and links to each other with power supply.

Under the preferable case; Do not comprise position transducer in the integrated electric compressor provided by the present invention; Hall Plate described in the prior art and Hall rotor have promptly been cancelled; But the control mode through controller realizes the speed governing and the running control of motor, and wave form varies, the phase relationship of curtage that for example can be through detecting motor wait and realize said function.Like this, not only simplify the structure of motor compressor, reduced cost, and made manufacturing process simpler, improved manufacturing efficiency.

In addition, need to prove, in order further to guarantee the sealing that motor compressor is whole; Improve sealing effect; Joint between parts is provided with seal ring as required, for example, and the joint between electric machine casing 12 and the connection casing 14; Joint between electric machine casing 12 and the end cap 16, or the like.

Claims

1. integrated electric compressor; This motor compressor comprises compressor unit (11), has the electric motor units (13) of electric machine casing (12), connects casing (14), bent axle (15), end cap (16) and lighting outlet mechanism (17); Wherein, Said compressor unit (11) and electric motor units (13) are through being connected casing (14) and bent axle (15) connects as one; Said end cap (16) seals the end of said electric machine casing (12); It is characterized in that; Said lighting outlet mechanism (17) sealing is assemblied in and is formed on electric machine casing (12), connects the tapping on any one in casing (14) and the end cap (16), and said lighting outlet mechanism (17) comprises Steel Support (19) and insulation and extend through the conductive pole (20) of Steel Support (19) hermetically, and the inclined-plane that said Steel Support (19) becomes big periphery through radial dimension to this motor compressor outside gradually seals and is assemblied in said tapping.

2. integrated electric compressor according to claim 1, wherein, said lighting outlet mechanism (17) also comprises the socket (18) that is arranged at motor compressor inside, said conductive pole (20) inserts in this socket (18).

3. integrated electric compressor according to claim 1 and 2 wherein, is equipped with seal ring (30) between said Steel Support (19) and said perforate.

4. integrated electric compressor according to claim 1 and 2 wherein, has the fixed block (31) on the hole wall that is assemblied in said perforate in the arranged outside of said Steel Support (19).

5. integrated electric compressor according to claim 4, wherein, said fixed block (31) is a jump ring.

6. integrated electric compressor according to claim 1 and 2 wherein, does not comprise position transducer in the said motor compressor.

7. integrated electric compressor according to claim 1 and 2, wherein, said perforate is formed on the said electric machine casing (12) and near said end cap (16) one sides.