CN203604169U

CN203604169U - Coolant compressor

Info

Publication number: CN203604169U
Application number: CN201320349374.5U
Authority: CN
Inventors: 克劳斯·奥泽; 伯特伦·维佩尔
Original assignee: BIZEL REFRIGERATION EQUIPMENT AG
Current assignee: BIZEL REFRIGERATION EQUIPMENT AG
Priority date: 2013-04-24
Filing date: 2013-06-18
Publication date: 2014-05-21
Anticipated expiration: 2023-06-18
Also published as: DE102013207470A1; DE102013207470B4

Abstract

A coolant compressor comprises a compressor shell body, a cylinder shell body provided with at least one cylinder hole, a valve plate arranged on the cylinder shell body and a cylinder head which is arranged on the valve plate and opposite to the cylinder shell body, wherein the cylinder shell body, the valve plate and the cylinder head are enclosed by the compressor shell body, pistons which can move through a driving device arranged in the compressor shell body is arranged in the cylinder holes, and a pressure chamber and a suction chamber are arranged in the cylinder head and respectively extend into the cylinder head from the valve plate. The cylinder head is constructed in a manner that the pressure chamber extending into the cylinder head from the valve plate has a volume that is at least 3 times that of the suction chamber extending into the cylinder head from the valve plate.

Description

Compressor for cooling fluid

Technical field

The utility model relates to a kind of compressor for cooling fluid, the cylinder housing with at least one cylinder hole that it comprises compressor housing, surrounded by this compressor housing, be positioned at the valve plate on this cylinder housing and be arranged in valve plate and the opposed side of cylinder housing on cylinder head, wherein, in this cylinder hole, be furnished with the piston that can move by the drive unit being arranged in compressor housing, in this cylinder head, be furnished with pressure chamber and suction chamber, they start to extend into cylinder head from valve plate respectively.

Background technique

Such compressor for cooling fluid is known by prior art.

In such compressor for cooling fluid, the problem of existence is can realize on the one hand operation as far as possible efficiently, and obtain on the other hand pulsation as far as possible little in cylinder head.

Model utility content

The utility model proposes a kind of compressor for cooling fluid, it comprises compressor housing, the cylinder housing with at least one cylinder hole being surrounded by described compressor housing, be positioned at the valve plate on described cylinder housing and be arranged in described valve plate with the opposed side of described cylinder housing on cylinder head, wherein, in described cylinder hole, be furnished with the piston that can move by the drive unit being arranged in described compressor housing, in described cylinder head, be furnished with pressure chamber and suction chamber, they start to extend into described cylinder head from described valve plate respectively, described cylinder head is constructed as follows, , the described pressure chamber that starts to extend into cylinder head from valve plate has as lower volume, this volume is at least describedly to start to extend into 3 times of volume of the suction chamber cylinder head from valve plate.

According to the utility model, this task by solving by the following method in the compressor for cooling fluid of the beginning type of describing,, cylinder head is configured to make the pressure chamber that starts to extend into cylinder head from valve plate to have as lower volume, and this volume is at least 3 times of volume that start to extend into the suction chamber cylinder head from valve plate.

According to the advantage of settling mode of the present utility model be, have thus following possibility, that is, optimized on the one hand the fluid mobility status in suction chamber

namely there is as far as possible little size by this suction chamber, and guaranteed thus optimum fluid flow guide, and make on the other hand the volume of pressure chamber maximize, thereby can be suppressed at the pulsation having existed in cylinder head.

Therefore, follow-up for suppressing the measure or unwanted of pulsation, or can implement with very little cost.

At this particularly advantageously, the volume of pressure chamber is at least 5 times of volume of suction chamber.

In addition, preferably arrange as follows, that is, the volume of pressure chamber is 10 times of suction chamber volume to the maximum.

Particularly advantageous settling mode setting, with especially directly extending adjacently with valve plate upside with valve plate, the first cross section in parallel is compared, pressure chamber especially with the second cross section that extend and in parallel, valve plate upside compartment of terrain has larger face extension with valve plate, especially valve plate upside.

The advantage of this settling mode is, can increase in simple mode thus the volume of pressure chamber, thereby make pressure chamber, to have the position of one section of fixed range with valve plate, has larger face and extends.

This especially can realize by the following method simply, that is, the second cross section is extended large than suction chamber along the maximum of the direction transverse to valve plate upside with the distance of valve plate.

In addition, the favourable make setting of cylinder head, pressure chamber cover at least in part with the opposed side of valve plate on suction chamber, thereby can advantageously realize thus the larger volume of pressure chamber.

In addition, the settling mode setting that other are suitable, pressure chamber have with the first volumetric region of valve plate adjacency and with the opposed side of valve plate on this first volumetric region adjoining and the second volumetric region of widening along the direction that is at least parallel to valve plate with respect to this first volumetric region.

Such make by these two volumetric regions can maximize the volume of pressure chamber with simple and favourable method and mode equally.

At this particularly advantageously, the second volumetric region and valve plate have certain distance ground at least to extend with the part area between cylinder head cover and suction chamber.

In addition, preferentially arrange as follows, that is, the second volumetric region covers at least in part suction chamber in itself and the opposed side of valve plate.

Particularly advantageous structural settling mode setting, cylinder head has and protrudes from valve plate and pack part into covering its cylinder head housing and be arranged in separating of in cylinder head housing and same and valve plate adjacency, and cylinder head housing covers suction chamber and pressure chamber, and separate and pack part into suction chamber and pressure chamber are separated.

Utilize this settling mode that a kind of simple especially structural make of cylinder head is provided.

Arrange aptly as follows at this, that is, separate and pack part into and be configured to valve plate adjacency and limit suction chamber in the first cross section and deviating from the suction chamber housing covering in the side of valve plate.

A kind of make of cylinder head optimum is provided in simple mode thus.

At this, especially arrange as follows, that is, suction chamber housing has the lid region that has certain distance and extend with the sidewall areas of valve plate adjacency with valve plate.

In this case, suction chamber housing can be integrated in cylinder head in simple mode.

At this, lid region preferably covers suction chamber in the side that deviates from valve plate.

In the time that the second volumetric region of pressure chamber extends between the lid region of suction chamber housing and the cylinder head cover of cylinder head housing, pressure chamber can particularly advantageously be constructed at this so.

At this, the make setting that cylinder head is suitable especially, cylinder head housing and separating packs part into and forms the parts of single type.

At this, especially arrange as follows, that is, cylinder head housing and separating packs part into and forms by the foundry goods connecting together.

As the alternative to the feature described up to now or supplementary, arrange according to another settling mode of task of the present utility model, valve plate has the depressed part of the sheet for holding valve disposed thereon.

In particular, this settling mode can be also preferred by avoiding the method for the clearance space volume in cylinder region to improve the usefulness of compressor for cooling fluid, thereby realized and can be carried out optimum as far as possible compression by each piston in the time of compresses refrigerant.

At this in particular, construct as follows for the depressed part of valve block, that is, its side from valve plate extends into valve plate.

At this, depressed part is preferably as follows such extension,, this depressed part has bottom surface, this bottom surface offsets in the direction of opposed side since a side (depressed part starts to extend into valve plate from this side), thereby valve plate has the thickness less than the region outside depressed part in the base surface area of depressed part.

At this, depressed part can be the depressed part in expulsion valve region or the depressed part in suction valve region.

In the situation that depressed part is in suction valve region, depressed part starts to extend into valve plate in the direction of upside towards the bottom side of cylinder housing from valve plate, and is for example parallel to downside or upside with its bottom surface and extends.

In the case of the depressed part towards expulsion valve, depressed part starts to extend into this valve plate from the upside of valve plate, and bottom surface is for example parallel to the upside of valve plate or downside and extends.

Accompanying drawing explanation

The themes to the ensuing description of several embodiments and accompanying drawing according to other feature and advantage of settling mode of the present utility model.

In the accompanying drawings:

Fig. 1 illustrates according to the embodiment's of compressor for cooling fluid of the present utility model longitudinal section;

Fig. 2 is illustrated according to the amplification plan view of the valve plate on the cylinder head of compressor for cooling fluid of the present utility model;

Fig. 3 illustrates along the sectional view of the line 3-3 in Fig. 2;

Fig. 4 illustrates along the sectional view of the line 4-4 in Fig. 2;

Fig. 5 illustrates the plan view of valve plate upside;

Fig. 6 illustrates along the sectional view of the line 6-6 in Fig. 5; And

Fig. 7 illustrates along the sectional view of the line 7-7 in Fig. 5.

Embodiment

Comprise the total housing with 10 marks on the whole in the embodiment according to compressor for cooling fluid of the present utility model shown in Fig. 1 to Fig. 3, this total housing has compressor housing 12 and electric machine casing 14, be connected to each other, and this total housing also has the terminal box 15 being positioned on electric machine casing 14 their preferred single types.

Compressor housing 12 comprises drive unit housing 16, is furnished with on the whole the reciprocating piston drive units with 22 marks in this housing, and it extends on longitudinal 18.

Reciprocating piston drive unit 22 comprises live axle 24 and belongs to the driving

eccentric wheel

26 and 28 of live axle 24, and they are driving the connecting

rod

34 and 36 on

eccentric wheel

26 and 28 in rotatingshaft 24 drive arrangement around rotating with longitudinal 18 parallel axis 32.

The drive unit of

piston

46 and 48 is followed connecting

rod

34 and 36 by

hinge linkage

42,44, this

piston

46 and 48 be directed on the whole with 56 marks and with drive unit housing 16 single types be connected and and then be integrated in the

cylinder hole

52,54 of the cylinder housing 56 in compressor housing 12, and can to-and-fro motion in

cylinder hole

52,54 by reciprocating piston drive unit 22.

The

cylinder hole

52 and 54 of cylinder housing 56 is sealed by valve plate 58, and this valve plate is placed on cylinder housing 56 with bottom side 62.

On the upside that deviates from cylinder housing 56 64 of valve plate 58, be provided with on the whole the cylinder heads with 72 marks, this cylinder head together with valve plate 58 valve plate 58 with

cylinder hole

52,54 opposed sides on there is suction chamber 74(Fig. 2) and pressure chamber 76(Fig. 1 and Fig. 2).

Cylinder head 62 itself is a part for compressor housing 12.

Suction chamber 74 is transferred freezing mixture via unshowned suction passage in Fig. 1, and first this freezing mixture enters in total housing 10, so that for example cooling motor 80 in electric machine casing 14.

For example, motor 80 comprises the stator 82 and the rotor 84 that are fixedly placed in electric machine casing 14, on the preferred extending portion 86 that is located immediately at live axle 24 of this rotor itself and by its carrying.

For example, carry out the supporting of live axle 24 by sliding bearing 92, this sliding bearing is arranged in the wall portion section 94 of drive unit housing 16, and wherein, wall portion section 94 separates electric machine casing 14 and compressor housing 12.

In addition, the supporting of live axle 24 is also undertaken by sliding bearing 96, and this sliding bearing is arranged in distolateral shell end 98, within this shell end is included in compressor housing 12, and with the opposed side of motor 80 on closed compression engine housing 12.

According in compressor for cooling fluid of the present utility model, cylinder head 72 is placed on the upside 64 of valve plate 58 hermetically with setting side 102, and is supported on valve plate 58 by this setting side 102.

As shown in Figure 2, suction chamber 74 has external frame 104 in the first cross section E1 that limit and parallel with valve plate 58 by setting side 102, starting suction chamber 74 from this external frame extends to cylinder head 72, wherein, suction chamber 74 is surrounded with the suction chamber housing of 110 marks on the whole in cylinder head 72, and this suction chamber housing is a part for cylinder head 72.

At this, suction chamber housing 110 for example comprises from setting side 102 and starts to extend to the sidewall areas 112 cylinder head 72, this sidewall areas starts to surround suction chamber 74 from setting side 102, and be transited into gradually the lid region 114 of suction chamber housing 110, this lid region suction chamber 74 with the opposed side of valve plate 58 on limit suction chamber 74.

Be integrated into the suction chamber housing 110 in cylinder head 72 by this, the suction chamber volume being provided by valve plate 58 can be provided as follows, that is, have optimum fluid mobility status for the freezing mixture being inhaled at suction chamber 74.

Except suction chamber housing 110, cylinder head 72 yet comprises cylinder head housing 120, it has the cylinder head sidewall 122 that starts to leave valve plate 58 ground extensions from setting side 102, this cylinder head sidewall has not only surrounded the suction chamber 74 with suction chamber housing 110 in outside, and surround pressure chamber 76, and with the opposed side of valve plate 58 on be transited into gradually cylinder head cover 124, its cylinder head sidewall 122 with the opposed side of valve plate 58 on seal cylinder head 72.

Therefore, cylinder head housing 120 covers valve plate 58, and cylinder head sidewall 122 is for example followed the external frame 128 of valve plate 58 with external frame 126.

Suction chamber housing 110 preferred arrangements are in the inner chamber 132 of cylinder head housing 120, and the sidewall areas 112 of suction chamber housing 110 is for example to be transited into cylinder head sidewall 122 with the degree of cylinder head sidewall 122 adjacency.

But, it is not to arrive cylinder head cover 124 that suction chamber housing 110 starts to extend from the setting side 102 of cylinder head 72, but the lid region 114 of arrival suction chamber housing 110, it namely extends with their compartment of terrains respectively between the setting side 102 and cylinder head cover 124 of cylinder head 72.

Therefore, suction chamber housing 110 forms the inserts that separates being arranged in cylinder head housing 120, this separates inserts suction chamber 74 and pressure chamber 76 is separated, wherein, pressure chamber 76 extends in a part for the inner chamber 132 of cylinder head housing 120, and this part is not inhaled into cavity shell 110 and the suction chamber 74 that surrounded by this suction chamber housing 110 takies.

Therefore, according in cylinder head 72 of the present utility model, pressure chamber 76 is from being arranged in the external frame 134 of setting side 102 and starting to leave setting side 102 and valve plate 58 ground extending to cylinder head 72, especially in cylinder head housing 120, it has the cross section corresponding to external frame 134, and in being formed in as lower area together with the first volumetric region 136 on being connected to valve plate 58, the sidewall areas 112 that pressure chamber 76 is also inhaled into cavity shell 110 partly in this region limits.

The second volumetric region 138 with in the opposed side of valve plate 58, connect with the first volumetric region 136, this second area 138 is compared with the first volumetric region 136 in external frame 134 regions, on larger cross section, extend, because pressure chamber 70 in the second volumetric region 138 in the lid region 114 of suction chamber housing 110(especially this suction chamber housing 110) and the especially cylinder head cover 124 of this cylinder head housing 120 of cylinder head housing 120() between extend, and cover suction chamber 74.

Therefore, the second volumetric region 138 of pressure chamber 76 has face and extends in the second cross section E2, this second cross section and valve plate 58 keep certain distance to be arranged and between the lid region 114 of suction chamber housing 110 and the cylinder head cover 124 of cylinder head housing 120, it is at least 3 times that the face that surrounded by external frame 134 extends that this face extends, the face that should be surrounded by external frame 134 extends and is arranged in the first cross section E1, and this cross section and placed side 102 are overlapping.

At this in particular, the second cross section E2 and valve plate 58 have certain distance, this distance is greater than the extension of suction chamber 74 transverse to valve plate 58, be preferably greater than suction chamber housing 110 transverse to the upside 64 of valve plate 58 and and then transverse to the extension of setting side 102, this setting side is arranged in the first cross section E1.

Therefore on the whole, the total volume of pressure chamber 76 is larger than 3 times of suction chamber 74 volumes, and this pressure chamber 76 at least comprises the first volumetric region 136 and the second volumetric region 138.

The preferred maximum of volume of pressure chamber 76 is 10 times of suction chamber 74 volumes.

The volume that pressure chamber 76 is large like this can make the pulsation of appearance in this pressure chamber 76 suppressed at cylinder head 72, and adds and expensive structure without cylinder head 72, for example, have integrated pulsation suppressor.

More precisely, pressure chamber 76 is enough to reach the inhibition for pulsation with the make of above-mentioned restriction size in cylinder head 72.

In addition, in order to improve inhibition, be also integrated with baffle plate (Blende) 142 in cylinder head 172, it limits the overflowing cross section and and then also improved the inhibition of pressure chamber 76 of freezing mixture of the compression for overflowing from pressure chamber 76.

In order to fix cylinder head 72 on cylinder housing 56, this cylinder head 72 is provided with a large amount of outer bolt through holes 142 and central bolt through hole 144, and bolt can be guided through these bolt holes, and cylinder head 72 utilizes together with these bolts are screwed in cylinder housing 56.

As shown in Figure 5, on valve plate 58, particularly in side 64, be provided with expulsion valve 152 thereon, this expulsion valve, as shown in FIG. 6, comprise valve block 154, this valve block is inserted between the end regions 166 of catcher (Faenger) 162 and valve plate 58 and from end regions 156 and starts to extend until discharge aperture 172 with end regions 156, valve block 154 use cover this discharge aperture with the opposed end regions 158 of end regions 156, wherein, end regions 158 is under the state not loaded by the freezing mixture of the pressurization in cylinder chamber separately, keep the hermetically enclosed of discharge aperture 172.

At this, port 172 extends from the bottom side 62 of valve plate 58 until the end regions 158 of valve block 154 wherein, exists harmful spatial volume 174.

In order to reduce clearance space volume 174, valve block 154 is placed on by upside 64 and starts to be worked on the bottom surface 182 of the depressed part 184 in valve plate 58, this depressed part starts to offset to the direction of bottom side 62 from the upside 64 of valve plate 58, thereby in the region of depressed part, particularly between the bottom surface 182 of depressed part 184 and the bottom side 62 of valve plate 58, region 186 produces less thickness, and discharge aperture 172 is also arranged in this region.

Thus, the clearance space volume 174 of discharge aperture 172 is also further reduced, and has therefore further optimized the function according to compressor for cooling fluid of the present utility model.

In an identical manner, as shown in Figure 7, also be provided with suction valve 192, its valve block 194 abuts on the bottom surface 202 of the depressed part 204 being worked in valve plate 58, wherein, bottom surface 202 offsets and arranges to the direction of upside 64 with respect to the bottom side 62 of valve plate 58, thereby entering in sealing under the state of opening 212, valve block 194 can not stretch into cylinder hole separately, for example, in cylinder hole 52, and therefore can make each piston 46 of operation in

cylinder hole

52, 48 in the dead point on top apart from the bottom side 62 of valve plate 58 near-earth location as far as possible, thereby this also be there is to reducing of clearance space, this clearance space is because the bottom side 62 that piston separately can not move to valve plate 58 produces.

Claims

1. a compressor for cooling fluid, it comprises compressor housing (12), by described compressor housing (12) surround with at least one cylinder hole (52, 54) cylinder housing (56), be positioned at the valve plate (58) on described cylinder housing (56) and be arranged in described valve plate (58) with the opposed side of described cylinder housing (56) on cylinder head (72), wherein, in described cylinder hole (52, 54) in, be furnished with the piston (46 that can move by the drive unit being arranged in described compressor housing (12), 48), in described cylinder head (72), be furnished with pressure chamber (76) and suction chamber (74), they start to extend into described cylinder head (72) from described valve plate (58) respectively, it is characterized in that, described cylinder head (72) is constructed as follows, , the described pressure chamber (76) that starts to extend into cylinder head (72) from valve plate (58) has as lower volume, this volume is at least describedly to start to extend into 3 times of volume of the suction chamber (74) cylinder head (72) from valve plate (58).

2. compressor for cooling fluid according to claim 1, it is characterized in that, described pressure chamber (76) extends having larger face than being directly adjacent in that valve plate extends and parallel with described valve plate the first cross section (E1) in the second cross section that extend and parallel with described valve plate (E2) at intervals with described valve plate (58) (58).

3. compressor for cooling fluid according to claim 2, is characterized in that, described the second cross section (E2) is greater than suction chamber (74) with the distance of described valve plate (58) and extends along the maximum of the direction transverse to valve plate upside (64).

4. according to the compressor for cooling fluid one of the claims Suo Shu, it is characterized in that, described pressure chamber (76) with the opposed side of described valve plate (58) on cover at least in part described suction chamber (74).

5. according to the compressor for cooling fluid one of claim 1-3 Suo Shu, it is characterized in that, described pressure chamber (76) has the second volumetric region (138) of widening along the direction that is at least parallel to described valve plate (58) extension with first volumetric region (136) of described valve plate (58) adjacency with respect to described the first volumetric region (136).

6. compressor for cooling fluid according to claim 5, is characterized in that, described the second volumetric region (138) and described valve plate (58) at least extend with the part area between cylinder head cover (124) and described suction chamber (74) at intervals.

7. compressor for cooling fluid according to claim 5, is characterized in that, described the second volumetric region (138) covers at least in part described suction chamber (74) in itself and the opposed side of described valve plate (58).

8. according to the compressor for cooling fluid one of claim 1-3 Suo Shu, it is characterized in that, described cylinder head (72) has the cylinder head housing (120) that protrudes from described valve plate (58) and cover described valve plate (58) and is arranged in described cylinder head housing (120) and same and separating of described valve plate (58) adjacency and packs part (100) into, and described cylinder head housing (120) covers described suction chamber (74) and described pressure chamber (76), and described in separate and pack part (100) into described suction chamber (74) and described pressure chamber (76) are separated.

9. compressor for cooling fluid according to claim 8, it is characterized in that, described in separate pack into part (100) be configured to described valve plate (58) adjacency and in described the first cross section (E1) around limiting the suction chamber housing (110) covering in side described suction chamber (74) and that deviating from described valve plate (58).

10. compressor for cooling fluid according to claim 8, is characterized in that, described suction chamber housing (110) has the lid region (114) of extending at intervals with the sidewall areas (112) of described valve plate (58) adjacency with described valve plate (58).

11. compressor for cooling fluid according to claim 10, is characterized in that, described the second volumetric region (138) extends between the lid region (114) of described suction chamber housing (110) and described cylinder head cover (124).

12. compressor for cooling fluid according to claim 8, is characterized in that, described cylinder head housing (120) and described in separate and pack part (100) into and form the parts of single type.

13. compressor for cooling fluid according to claim 8, is characterized in that, described cylinder head housing (120) and described in separate and pack part (100) into and form by the foundry goods that connects together.

14. according to the compressor for cooling fluid one of claim 1-3 Suo Shu, it is characterized in that, described valve plate (58) has the depressed part of the valve block (154,194) for holding the valve (152,192) being arranged on described valve plate.

15. compressor for cooling fluid according to claim 14, is characterized in that, the depressed part (184,204) of the described valve block for valve (152,192) extends into described valve plate (58) from a side of described valve plate (58).