CN102338542A

CN102338542A - Low-pressure storage unit and refrigeration utensil with same

Info

Publication number: CN102338542A
Application number: CN2010102338372A
Authority: CN
Inventors: 陶锋; 丁玉磊; 马敬东; 杨振宇; 赵德飞
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Home Appliances Co Ltd
Priority date: 2010-07-22
Filing date: 2010-07-22
Publication date: 2012-02-01
Anticipated expiration: 2030-07-22
Also published as: EP2596307A1; PL2596307T3; EP2596307B1; WO2012010505A1; CN102338542B

Abstract

The invention relates to a low-pressure storage unit and a refrigeration utensil with the same. The low-pressure storage unit (7) comprises a storage room (15), a first part (26) and a second part (32), wherein the storage room (15) can keep in a low pressure state; the first part (26) is provided with a through hole (19) for communicating the storage room (15) with external fluid; and the second part (32) is connected to the first part (26) and is provided with a sealing part (25) for selectively opening or sealing the through hole (19). According to the suggestions provided by the invention, the sealing part (25) is connected onto the second part (32) in a mode that the position of the sealing part (25) relative to the second part (32) is adjustable.

Description

Low pressure storage unit and refrigerating appliance with low pressure storage unit

[technical field]

The present invention is about a kind of low pressure storage unit and refrigerating appliance with low pressure storage unit, particularly has in order to the low pressure storage unit of the closure member of closed fluid passages and family expenses or the commercial refrigeration utensil with this storage unit about a kind of.

[background technology]

A kind of low pressure storage unit refrigerating appliance of (also can claim " vacuum storage unit ") that has is disclosed for one Chinese patent application CN 101358795 A numbers.The low pressure storage unit comprises the door that limits main body with storeroom that food picks and places mouthful and pick and place mouthful in order to switching.Be provided with between door and the main body round the potted component that picks and places mouth so that the low pressure storage unit forms vacuum seal; Thereby can being taken away through the air extractor of for example vavuum pump, the gas when storeroom is closed in the storeroom make storeroom keep low-pressure state, but and the holding time of food and extend.

The low pressure storage unit has the pressure relief valve/relief valve in order to the low-pressure state of removing low-pressure chamber.Relief valve by the rubber system valve seat on the through hole that is installed on door main body be formed on the door handle back side, constitute in order to the valve body that opens and closes valve seat.When closing the low-pressure chamber door,, can make valve body be close to valve seat and close valve seat through the thrust door handle; When opening the low-pressure chamber door, through the sliding door handle, door handle rotates and drives the valve body rotation and then open valve seat.With this, can remove low-pressure state or airtight low-pressure chamber in the low-pressure chamber through the actuating doors handle.

Yet; Be evacuated back or low pressure storage unit after long-term the use at low-pressure chamber; Low-pressure chamber door and/or handle might produce certain deformation; Distance between door main body and the handle inboard is changed, and this causes relief valve bubble-tight decline when closing, and then influences the air-tightness of low pressure storage unit.

[summary of the invention]

One object of the present invention is to provide a kind of low pressure storage unit of the airtight effect with improvement and the refrigerating appliance with this low pressure storage unit.

Therefore, one side of the present invention is about a kind of low pressure storage unit.The low pressure storage unit comprises: the storeroom that can keep low-pressure state; First parts have the through hole that is communicated with external fluid in order to said storeroom; Second parts are provided with the closure member that is used for opening selectively or sealing said through hole; It is characterized in that said closure member is connected on said second parts with the adjustable mode of said relatively second position component.

Another aspect of the present invention is about a kind of low pressure storage unit.The low pressure storage unit comprises: the storeroom that can keep low-pressure state; First parts have the through hole that is communicated with external fluid in order to said storeroom; Second parts are provided with the closure member that is used for opening selectively or sealing said through hole; Be characterised in that said closure member floats and is connected on said second parts.

Because the position of closure member on second parts can the oneself be adjusted, even certain deformation takes place the low pressure storage unit, closure member still can keep closely sealing through hole.

Preferred embodiment according to the present invention, said closure member is connected on said second parts slidably.

Preferred embodiment according to the present invention, said second parts have a chamber, and said closure member stretches into slidably in said chamber.

Preferred embodiment according to the present invention; Said second parts have relatively and the first wall and second wall that separate; Near said first parts and have perforation, said closure member passes said perforation and stretches between said first wall and said second wall and can between said first wall and said second wall, move said first wall than said second wall.

A preferred embodiment comprises elastic component according to the present invention, and said elastic component is between said second wall and the said closure member and/or between said first wall and the said closure member, and said closure member is adjusted the position through the length variations of said elastic component.

Preferred embodiment according to the present invention comprises at the elastic component between said second parts and the said closure member to adjust the position of said closure member on said second parts.

Preferred embodiment according to the present invention, said closure member is adjusted the position through the length variations of said elastic component.

Preferred embodiment according to the present invention, before said closure member sealed said through hole, said elastic component was compressed and applies towards the power of the said first parts direction for said closure member.

Preferred embodiment according to the present invention, said elastic component comprises spring.

Preferred embodiment according to the present invention, the position of said closure member is adjusted in a fixed range.

Preferred embodiment according to the present invention, said through hole is the pressure release passage of said low pressure storage unit.

Preferred embodiment according to the present invention, said second parts are connected in said first parts rotationally.

Preferred embodiment according to the present invention, said through hole are positioned in order on the door of opening or closing said storeroom selectively, and said second parts are arranged on the handle on the said door.

Another aspect of the present invention is about a kind of refrigerating appliance, and it comprises like above any described low pressure storage unit.

Preferred embodiment according to the present invention, refrigerating appliance comprise the casing that limits between insulated storage, and said low pressure storage unit is housed in the said storeroom.

Structure of the present invention and its other goals of the invention and beneficial effect will be in conjunction with the drawings and description of preferred embodiments and more obviously understandable.

[description of drawings]

As the part of specification and in order to providing to further understanding of the present invention, the following accompanying drawing diagram specific embodiment of the present invention, and be used for explaining principle of the present invention with specification.Wherein,

Fig. 1 is the schematic perspective view of refrigerating appliance in accordance with a preferred embodiment of the present invention, and wherein, the utensil door of refrigerating appliance does not show.

Fig. 2 is the schematic assembling stereogram of low pressure storage unit in accordance with a preferred embodiment of the present invention.

Fig. 3 is the schematic perspective view when the low pressure storage unit is opened in accordance with a preferred embodiment of the present invention.

The decomposing schematic representation of Fig. 4 low pressure storage unit in accordance with a preferred embodiment of the present invention, wherein door is in open mode and is decomposed and illustrates.

Fig. 5 is the three-dimensional assembly diagram of the brake unit of low pressure storage unit in accordance with a preferred embodiment of the present invention.

Fig. 6 is the decomposing schematic representation of the handle of low pressure storage unit in accordance with a preferred embodiment of the present invention.

Fig. 7 is the cross-sectional schematic of the handle of low pressure storage unit in accordance with a preferred embodiment of the present invention.

Fig. 8 is the partial schematic sectional view of low pressure storage unit when pressure release passage is closed.

[specific embodiment]

Please with reference to Fig. 1, refrigerating appliance 1 comprises heat insulation casing 2, and casing 2 comprises shell 2a, inner bag 2b and the thermal insulation layer between the two (not shown).Casing 2 limits a plurality of heat insulation chambers,

storeroom

3,4, and 5 with article such as stored foods.In the present embodiment, these chambers, storeroom be respectively superposed refrigerator chamber 3, in the freezing compartment 5 of bottom and between the former two, temperature fresh-keeping chamber 4 keeping being higher than a little zero degrees celsius.Chamber,

storeroom

3,4,5 can be closed by each self-corresponding utensil door (not shown).

Be to be understood that; The present invention should not be confined to the concrete distribution form of the packing compartments of refrigerating appliance; The present invention also can use other forms of refrigerating appliance, for example has about being/goes up down refrigerator, the clamshell doors refrigerator that the chamber, storeroom is arranged side by side of the refrigerating chamber that distributes and refrigerating chamber and have drawer type door and/or the refrigerating appliance of French clamshell doors etc.

Refrigerating appliance 1 has the vaporation-type refrigeration system that forms closed loop.Refrigeration system comprises compressor (not shown), condenser (not shown), throttling arrangement (not shown) and evaporimeter (not shown) at least.In view of such refrigeration system is known technology in the prior art, therefore omit its further description.Certainly, refrigerating appliance 1 also can use the refrigeration system (like absorption system, thermoelectric cooling system) of other form also to be fine.

Refrigerating appliance 1 is provided with has the low pressure storage unit 7 that can remain on low-pressure state and the air extractor (not shown) in order to gas is detached in the low pressure storage unit 7.Air extractor can comprise vavuum pump and be connected vavuum pump and low pressure storage unit 7 between pipeline (not shown).

In the present embodiment, low pressure storage unit 7 is arranged in fresh-keeping the chamber 4.Should be appreciated that in other embodiment it is indoor that low pressure storage unit 7 also can be arranged on other storerooms, for example refrigerator chamber 3 or temperature range can refrigerate the temperature-changing chamber that switch between warm area and the freezing warm area.

Low pressure storage unit 7 is positioned at the bottom of fresh-keeping chamber 4, is supported on the diapire of fresh-keeping chamber 4.Can be provided with the antistaling container 6 that humidity is higher, be suitable for preserving food such as vegetables on the low pressure storage unit 7.

Low pressure storage unit 7 is assembled in the casing 2 after can being independent of casing 2 structures.Please with reference to Fig. 2 and Fig. 3, in the present embodiment, low pressure storage unit 7 has and is roughly flat rectangular-shapedly, and its width is slightly smaller than the width of fresh-keeping chamber 4, and makes low pressure storage unit 7 can insert in fresh-keeping the chamber 4 or in fresh-keeping chamber 4, pull out.

Low pressure storage unit 7 comprises and is fixed on the main body 8 in fresh-keeping the chamber 4 and is connected in main body 8 and can pushes or withdraw from the door 10 of fresh-keeping chamber 4.

Please with reference to Fig. 2 and Fig. 3, main body 8 has box structure, and it limits has the flat storage chamber 15 that food picks and places mouth.Pick and place a mouthful front end that preferably is positioned at main body 8 towards the user.

Door 10 can be provided with annular sealing (not shown), engages so that door 10 forms air-tightness between main body 8 and the door 10 when in the closed position, prevents that gas is from the joint entering storeroom 15 between main body 8 and 10.Potted component also can be arranged on the front end of main body 8.

Door 10 is a drawer type door, and it can be pushed to main body 8 to close storeroom 15, perhaps pulls out to open storeroom 15.The rear side of door 10 connects tray-like container 12 in order to place article.The user through tray-like container 12 is pushed or pulls out storeroom 15 and obtain to be positioned at the article of low pressure storage unit 7 or with article storage in low pressure storage unit 7.Door 10 has constituted the drawer unit that can push and pull out in the main body 8 with 12 of tray-like container.

Between tray-like container 12 and the main body 8 telescopic rail unit 14 can be set, thereby door 10 and tray-like container 12 can pull out or push in the main body 8 glibly from main body 8.

Low pressure storage unit 7 can be provided with the retaining mechanism of locking in order to door 10 in the closed position and main body 8.Like Fig. 3, shown in 4; Retaining mechanism comprise be arranged on door on 10 first auxiliary section 34 and be arranged on second auxiliary section 44 on the main body 8; The combination that hooks through first auxiliary section 34 and second auxiliary section 44; Door 10 is locked in the closed position, and the coupling mechanism force extruding and the fully distortion that produced by retaining mechanism of the potted component between main body 8 and the door 10, and then improves the air-tightness between door 10 and the main body 8.

Low pressure storage unit 7 be provided with bleed-off passage (not shown) so that storeroom 15 can with air extractor between set up fluid and be connected, and the extraction valve 60 that whether is communicated with in order to the control bleed-off passage with air extractor.Bleed-off passage and extraction valve 60 are arranged on the rear end of main body 8.In other embodiment, bleed-off passage and extraction valve 60 also can be arranged on other positions, for example suitable location such as the sidewall of door 10, main body 8 or roof.

Closed by door 10 and air extractor when starting when storeroom 15, the gas that is positioned at storeroom 15 can be detached, and storeroom 15 is depressurized and is in low-pressure state.Preferred embodiment according to the present invention, when bleeding EP (end of program), the pressure (for example, its absolute pressure is less than 690 millibars) between a standard atmospheric pressure and absolute vacuum in the storeroom 15.Because the air pressure in the storeroom 15 can remain below the state of standard atmospheric pressure, those skilled in the art also are commonly called as its " vacuum chamber ".

Please with reference to Fig. 4, door 10 comprises a body 26, be fixed on brake unit 27 on the body 26, in order to brake unit 27 be fixed on the fixture 28 on the body 26 and be connected the trim 29 of a body 26 with the appropriate section of covering brake unit 27.

Door body 26 is tetragonal tabular for roughly, preferably is made of plastics.Door body 26 have from its front surface 26a cave in backward, receiving space 30 in order to accommodate brake unit 27.

Like Fig. 4 and shown in Figure 5, brake unit 27 comprises and is roughly tabular handle 32, is fixed on columniform rotating shaft bar 33 and a pair of first auxiliary section 34 that is fixed on rotating shaft bar 33 corresponding ends on the handle 32.

Rotating shaft bar 33 is fixed on the rear side of handle 32.Handle 32 has a plurality of fixed parts 35 from protrusion of surface thereafter, and fixed part 35 is positioned at the top of handle 32.Each fixed part 35 has the columniform fixing hole 36 that extends in the horizontal and is connected on the handle 32 to allow rotating shaft bar 33 to pass these fixing holes 36.

In the present embodiment, rotating shaft bar 33 can not be fixed together with handle 32 with relatively moving.This can combine rotating shaft bar 33 and fixed part 35 to realize through using screw 37.

Fixing respectively one first auxiliary section 34, the two ends of rotating shaft bar 33.In the present embodiment; After first auxiliary section 34 is enclosed within the associated end of rotating shaft bar 33; Through fixture screw and it can not be fixed on the rotating shaft bar 33 by phase countershaft bar 33 movably for example; Thereby on rotating shaft bar 33 is fixed door-plate 26 and round self central shaft X when rotation, first auxiliary section 34 is also round the central shaft X rotation of rotating shaft bar 33.

After being fixed to a body 26, handle 32 rotatably is connected on the door 10.When rotating handles 32, the rotating shaft bar 33 that is positioned at a body 26 also is rotated round self central shaft X and drives 34 rotations of first auxiliary section simultaneously.Rotating shaft bar 33 defines the rotating shaft of the handle 32 and first auxiliary section 34.In this process, though 32 rotations of rotating shaft bar, as the rotating shaft of the handle 32 and first auxiliary section 34, its central shaft X phase opposite house body 26 does not produce displacement.

Handle 32 can rotate between the primary importance and the second place round the central shaft X of rotary shaft 33.In primary importance, the angle that forms between the front surface 26a of handle 32 and door body 26 is maximum, form maximum distance between the front surface 26a of its lower end and door body 26, so primary importance also can be described as extended position.In the second place, the angle that forms between the front surface 26a of handle 32 and door body 26 is minimum, form minimum distance between the front surface 26a of its lower end and door body 26, so the second place also can be described as retracted position.

In primary importance, the angle between handle 32 and the fore-and-aft plane is less than 90 degree.In a preferred embodiment, handle 32 is rotated when becoming 30 degree-60 degree (for example 50 degree) with perpendicular, promptly is limited to continue to inner rotary.This can realize through corresponding position limiting structure (not shown).This position limiting structure can so be provided with: after handle 32 outwards rotated to maximum angle arrival primary importance, position limiting structure was connected to the inboard of the part that is positioned at rotary shaft 33 tops of handle 32.For example; Position limiting structure keeps certain distance near the upper inside walls setting of receiving space 30 and with the latter; After handle 32 rotated to primary importance, handle 32 was positioned at inboard and this position limiting structure butt of the part on the rotary shaft 33, thereby being further rotated of handle 32 is limited.

Preferred embodiment according to the present invention, when handle 32 is in the second place, the front surface of handle 32 be approximately perpendicular to level and and be in vertical position, this is particularly conducive to handle 32 is retracted in the door 10.Preferably, the overwhelming majority at least that is in the handle 32 of the second place is accommodated in the sinking space 30, to reduce the volume that takies of low pressure storage unit 7.Particularly preferably, the handle 32 that is in the second place is contained in the body 26 fully, does not exceed the front surface of door 10.

Door 10 can be provided with the position limiting structure that when rotating to perpendicular (second place), continues rotation in order to restriction handle 32; Cause the upper end of handle 32 to protrude in outside the sinking space 30 to prevent handle 32 from continuing rotation, thereby make the outward appearance of door 10 seem more comparatively smooth.This position limiting structure can form through being fixed on handle 32 bulge-structures inboard and/or then door body 26 front sides; And so be provided with: when the front surface of handle 32 is in vertical position; Be fixed on this position limiting structure on the body 26 and just be connected to the inboard of the part that is positioned at rotary shaft 33 belows of handle 32, perhaps be fixed on the front side that handle 32 inboard position limiting structures just are connected to a body 26.

When handle 32 was in the second place, second auxiliary section 44 was hooked in first auxiliary section 34, thereby the front end of first auxiliary section 34 overlaps with second auxiliary section 44 on fore-and-aft direction.For fear of the door 1 that will be in the state of pulling out the user when pushing the closed position front end of first auxiliary section 34 clash into second auxiliary section 44 and cause the damage of low pressure storage unit 7; Preferred embodiment according to the present invention; Like Fig. 5 and shown in Figure 6; Low pressure storage unit 7 comprises in order to first auxiliary section 34 is remained on the holding device 49 of a home after locking state is removed at door 10; This home is so selected: in the process that door 10 is closed, first auxiliary section 34 of advance the puck is in the position that can not clash into sticking department 46.

In a preferred embodiment, holding device 49 is realized first auxiliary section 34 is remained on the said home through handle 32 being remained on a security standpoint.When this security standpoint can equal handle 32 and is in primary importance and vertically flat and between angle (the maximum outwards anglec of rotation) or be slightly less than the outside anglec of rotation of this maximum; That is to say, the home of first auxiliary section 34 can be it first extreme position or near first extreme position.Be appreciated that the front end of first auxiliary section 34 and sticking department 46 should not overlap when handle 32 is in primary importance/extended position on fore-and-aft direction.

In an embodiment who realizes especially easily, holding device 49 comprises spring.Preferably, holding device 49 can by the first end 49a be fixed on a body 26 or immovably be fixed on the parts (for example fixture 28) on the body 26, the torsion spring that the second end 49b is fixed on the handle 32 is realized.After handle 32 is in primary importance; Torsion spring can apply an outside twisting resistance and give handle 32 and make handle 32 have the power of continuation to inner rotary; Can't continue rotation owing to handle 32 receives the restriction of first position limiting structure 48 on the other hand, so it is securely held on the primary importance.

In one embodiment of the invention, holding device 49 also is configured to give the handle 32 that is in the second place inside twisting resistance to be provided so that the lower end of handle 32 can not stick up, and then handle 32 is remained on the vertical position reliably.

Therefore, for holding device 49 that can be respectively rightabout twisting resistance is provided for the handle 32 that is in the primary importance and the second place, when handle 32 was in a equilbrium position between the primary importance and the second place, handle 32 can be in balance.When handle 32 from this equilbrium position slightly to inner rotary, then holding device 49 twisting resistance of providing for handle 32 can make it arrive primary importances and be limited to continue rotation until handle 32 to inner rotary; When handle 32 after the balance angle is slightly inwardly rotated, handle 32 can inwardly rotate under the effect of the inside twisting resistance that holding device 49 is applied until handle 32 and arrive the second places and be limited to continue rotation.

After door 10 is closed; Lower end through downward squeeze grip 32; Handle 32 inwardly rotates round the central shaft X of rotating shaft bar 33; Simultaneously rotating shaft bar 33 also round self central shaft X rotation and drive first auxiliary section 34 and rotate up, when handle 32 arrived the second places, first auxiliary section 34 engaged with second auxiliary section 44 and locks.Through the outside pulling handle 32 in the lower end of holding handle 32, handle 32 is rotated down thereby drive first auxiliary section 34 to inner rotary, and then first auxiliary section 34 and second auxiliary section 44 unlock.

Low pressure storage unit 7 has in order to storeroom 15 is communicated with external fluid with the pressure release passage 19 of the low-pressure state of removing storeroom 15 and the closure member 25 that is used for opening selectively or sealing pressure release passage 19.

Pressure release passage 19 is arranged on the body 26.The outer end of pressure release passage 19 is communicated with receiving space 30.Through pressure release passage 19, storeroom 15 can be communicated with external fluid, and extraneous gas can get into storeroom 15 and the low-pressure state of releasing storeroom 15, and makes door 10 to be opened.Pressure release passage 19 can be provided with the rubber-like seal receptacle to improve air-tightness.

Closure member 25 is positioned at the rear side of handle 32, is provided with handle 32 interlock ground, and when handle 32 was in the second place, pressure release passage 19 was by sealing airtightly.After handle 32 left the second place, pressure release passage 19 was opened, and it is poor with balance storeroom 15 external and internal pressures that extraneous gas can get into storeroom 15, and the user can spur door 10 forward, and opens low pressure storage unit 7.

In low pressure storage unit 7 pumping processes and after low pressure storage unit 7 is through long-term the use; Door some parts of 10 for example door body 26 and/or handle 32 may produce certain deformation; And the distance of door between the body 26 that makes the handle 32 that closure member 25 is set and be provided with pressure release passage 19 changes, and this possibly cause pressure release passage 19 bad sealings.

For fear of low pressure storage unit 7 air-tightness decline because of this problem, according to the present invention, closure member 25 so is installed on the handle 32: its position on handle 32 is adjustable.That is to say that when certain deformation took place door 10, the position of closure member 25 can be by automatic adjustment closely to seal pressure release passage 19.

Preferred embodiment according to the present invention is provided with an elastic component between closure member 25 and the handle 32, come the position of adjustment closure member 25 relative handles 32 automatically through the elastic component shape variation.In the present embodiment, elastic component is made up of spring 50.

Like Fig. 6 and shown in Figure 7, the inboard of handle 32 forms one in order to the mount pad 56 of closure member 25 to be installed.Mount pad 56, comprises a plurality of interconnecting and forms the leg 58 of a frame to rearward projection from the inboard of the basal wall 54 of handle 32.Mount pad 56 comprises first post 59 that is positioned at said frame.

Handle 32 also comprises the mounting cover 62 that connects with mount pad 56.Mounting cover 62 is connected the free end of mount pad 56, and the two limits a chamber 51 together.Mounting cover 62 has the main wall 53 that is roughly parallel to basal wall 54, and on main wall 53, forms a perforation 55 that runs through main wall 53.Mounting cover 62 preferably removably is connected on the mount pad 56, for example can be fixed in leg 58 through the mode of snapping.

Closure member 25 comprises towards first end 25a of door body 32 and the second end 25b opposite with first end 53.The second end 25b has flange 64.Closure member 25 has one and extends internally with certain-length and external diameter second post 63 identical with first post 59 from the second end 25b, and round the annular groove (indicating) of the setting of second post 63.

During assembling, the end with spring 50 is enclosed within on second post 63 earlier, and the other end that will be connected the spring 50 on the closure member 25 then is enclosed within on first post 59.Closure member 25 is aimed in the perforation 55 of mounting cover 62 makes the first end 25a of closure member 25 pass perforation 55.At last, mounting cover 62 is snapped onto on the mount pad 56.After accomplishing assembling, as shown in Figure 7, the part of closure member 25 is housed in the chamber 51, and spring 50 is compressed, and spring 50 applies elastic force for closure member 25 so that the flange 64 of closure member 25 supports separates in the inboard of the main wall 53 of mounting cover 62.This moment, the length of spring 50 was L0, had clearance D 1 between first post 59 and second post 63.

Because the variable-length of spring 50, the closure member 25 that therefore is connected in spring 50 is equivalent to floating ground and is connected on the handle 32.When the first end 25a of closure member 25 was pressed, closure member 25 can slide with respect to chamber 51.In the present embodiment, the sliding scale of closure member 25 equals the clearance D 1 between first post 59 and second post 63 when closure member 25 does not dock with the port of pressure release passage 19.

Please with reference to Fig. 8, when handle 32 was in the second place, closure member 25 was connected to the port of pressure release passage 19.Under normal circumstances, handle 32 and the distance of door between the body 26 make closure member 25 segment distance (for example 1～2 millimeter) of under the effect of door body 26, drawing back a little, and spring 50 is by further compression, and the flange 64 and the main wall of closure member 25 were opened in 53 minutes.At this moment, the length of spring 50 is L1, and L1 is less than L0, and the gap between flange 64 and the main wall 53 is the difference of L0 and L1.

Yet after use after a while, low pressure storage unit 10 may produce certain deformation.When such deformation makes handle 32 and the distance between the body 26 of the state low pressure storage unit 7 down that is in the decompression or is about to the decompression bigger than above-mentioned normal value; Because spring 50 imposes on closure member 25 with the power towards pressure release passage 19 directions; The distance that closure member 25 is drawn back reduces, and does not even retreat and the inboard that keeps being connected to main wall 53.That is to say that with respect to above-mentioned normal condition, this moment, the position of closure member 25 was adjusted to the standing part (like mounting cover 62 and basal wall 54) that more protrudes in handle 32.As long as above-mentioned deformation is not more than the difference of L0 and L1, closure member 25 still can closely seal pressure release passage 19.

When the deformation of low pressure storage unit 7 makes the state that is in decompression or is about to decompression handle 32 and the distance between the body 26 down compare above-mentioned normal value to reduce; Closure member 25 bears bigger pressure; Spring 50 is compressed into the length L 2 littler than L1, and the flange 64 of closure member 25 and the gap between the main wall 53 are greater than the gap between flange under the above-mentioned normal condition 64 and the main wall 53 (being the difference of L0 and L1) at this moment.

Though pressure release passage is arranged on the door in above embodiment, closure member is arranged on the handle, yet the present invention should not be subject to this.In other embodiment, pressure release passage is arranged on the suitable position of low pressure storage unit, and for example on the main body, and closure member is arranged on another parts, also is possible.In addition, the present invention should also can apply to the sealing of bleed-off passage.

Claims

1. a low pressure storage unit (7) comprising:

The storeroom (15) that can keep low-pressure state;

First parts (26) have the through hole (19) in order to said storeroom (15) is communicated with external fluid;

Second parts (32) are provided with the closure member (25) that is used for opening selectively or sealing said through hole (19);

It is characterized in that said closure member (25) is connected on said second parts (32) with the whole mode of the adjustable positions of said relatively second parts (32).

2. a low pressure storage unit (7) comprising:

The storeroom (15) that can keep low-pressure state;

Be characterised in that said closure member (25) floats and is connected on said second parts (32).

3. according to claim 1 or claim 2 low pressure storage unit (7) is characterized in that said closure member (25) is connected on said second parts (32) slidably.

4. low pressure storage unit as claimed in claim 3 (7) is characterized in that, said second parts (32) have a chamber (51), and said closure member (25) stretches in the said chamber (51) slidably.

5. like above any described low pressure storage unit of a claim (7); It is characterized in that; Said second parts (32) have relatively and the first wall (53) and second wall (54) that separate; Near said first parts (26) and have perforation (55), said closure member (25) passes said perforation (55) and stretches between said first wall (53) and said second wall (54) and can between said first wall (53) and said second wall (54), move said first wall (53) than said second wall (54).

6. low pressure storage unit as claimed in claim 5 (7); It is characterized in that; Comprise elastic component (50); Said elastic component (50) is positioned between said second wall (54) and the said closure member (25) and/or between said first wall (53) and the said closure member (25), said closure member (25) is adjusted the position through the length variations of said elastic component (50).

7. like any described low pressure storage unit (7) in the claim 1 to 5; It is characterized in that, comprise that the elastic component (50) that is positioned between said second parts (32) and the said closure member (25) is to adjust the position of said closure member (25) on said second parts (32).

8. low pressure storage unit as claimed in claim 7 (7) is characterized in that, said closure member (25) is adjusted the position through the length variations of said elastic component (50).

9. like claim 6; 7 or 8 described low pressure storage unit (7); It is characterized in that, seal said through hole (19) before at said closure member (25), said elastic component (50) is compressed and applies towards the power of said first parts (26) direction for said closure member (25).

10. like any described low pressure storage unit (7) in the claim 6 to 9, it is characterized in that said elastic component (50) comprises spring.

11., it is characterized in that the position of said closure member (25) is adjusted in a fixed range like above any described low pressure storage unit of a claim (7).

12., it is characterized in that said through hole (19) is the pressure release passage in order to the low-pressure state that discharges said storeroom (15) like above any described low pressure storage unit of a claim (7).

13., it is characterized in that said second parts (32) are connected in said first parts (26) rotationally like above any described low pressure storage unit of a claim (7).

14. as above any described low pressure storage unit of a claim (7); It is characterized in that; Said through hole (19) is formed in order on the door (10) of opening or closing said storeroom (15) selectively, and said second parts (32) are arranged on the handle on the said door (10).

15. a refrigerating appliance (1) comprises like above any described low pressure storage unit of a claim (7).

16. refrigerating appliance as claimed in claim 15 (1) is characterized in that, comprises the casing (2) that limits (4) between insulated storage, said low pressure storage unit (7) is housed in the said storeroom (4).