CN101171480A

CN101171480A - Refrigerating device having a flap with a restricted opening motion

Info

Publication number: CN101171480A
Application number: CNA2006800154821A
Authority: CN
Inventors: C·容; M·齐格勒
Original assignee: BSH Bosch und Siemens Hausgeraete GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 2005-05-10
Filing date: 2006-03-28
Publication date: 2008-04-30
Also published as: WO2006120063A1; EP1866586A1; RU2007136935A; DE102005021612A1

Abstract

In a refrigerating device having a cold chamber and at least one compartment (21) arranged in the cold chamber and accessible via a pivotable flap (30), the flap (30) is retained in the open position by a holding strap (35). The holding strap (35) has two holding elements (36, 37), a first element (36) fixed to the flap (30) and a second element (37) fixed to the inside container of the refrigerating device by means of a bolt (24, 24'). The bolt engages a deep-drawn recess (17) in the inside container (15) and is welded to the recess.

Description

The refrigerating plant that has the trap that its aperture is restricted

Technical field

The present invention relates to have the refrigerating plant of cooling chamber, wherein compartment is spaced and can be approaching by a rotation trap.A device so for example can be refrigerator or the vertical type refrigerator with the freezing compartment that is spaced, and its cooling chamber is divided into a plurality of compartments.

Background technology

For trap being stabilized in its open mode, for example can provide a clamp bar as can be known from DE19817765A1, an one end is built on the trap and another terminal eyelet for bolt is clamped in rotatable mode, and described bolt is fixed in the depression in the wall of cooling chamber.This wall is realized with the form by the inner pressurd vessel of plastics deep draw as single parts usually.Form because it is a deep draw, the size difference of inner pressurd vessel is bigger, causes bolt can not fit into inner pressurd vessel in its depression that provides or cooperate but can't find support within it.Usually take place bolt after installation, be fixed on immediately the depression in but after being operated repeatedly in the use of trap at refrigerating plant, become loosening.

Summary of the invention

The objective of the invention is to disclose a kind of refrigerating plant, although wherein the accuracy of the size that relates to the depression of holding bolt is not strict with, bolt can firm and reliable mode be fixed in the depression in the long run.

Realized according to the present invention a kind ofly having cooling chamber and being arranged in cooling chamber and the refrigerating plant by at least one approaching compartment of rotatable trap, wherein the clamp bar of trap with two holding elements remains on open position, first holding element is fixed in trap and second holding element is fixed on the inner pressurd vessel of refrigerating plant by means of bolt, bolt engages with the depression of deep draw in the inner pressurd vessel, and wherein bolt preferably is welded in depression by ultrasonic bonding.

Such bolt has the bar in the depression of being bonded on usually.This bar preferably has outstanding rib.During bar was inserted depression, these ribs helped to set up the CONTACT WITH FRICTION with the inwall that caves in, thus slight undersize that may compensation depressions, and if necessary, the plastic deformation in the wall zone by rib or the depression that is in contact with it compensates.The restriction that contacts the tip that is subjected to rib between bolt and the wall, thus mean that also the easier ultrasonic energy that will supply with local welding concentrates the energy that uses seldom that material is fused reliably.

For promoting bolt to insert depression, rib preferably extends along the axial direction of bar.

If bolt has the flange that rests on the wall surface that centers on depression, just further realized the stability of bolt.

Preferably flange has at least one projection in the face of wall surface.As the rib of above-mentioned bar, this also helps to concentrate the welding energy of local supply, thereby helps to set up being welded to connect between flange and the wall surface.

Projection is preferably the rib that extends around bar.

Second holding element can be eyelet, with the supporting part of rotatable mode fishbolt.In this case, eyelet preferably has non-circular internal cross section, and the crimping that stops supporting part has the outer cross with this internal cross section complementation, and this makes that may promote eyelet at the position of rotation that is limited by shape of cross section cross crimping.As long as eyelet is at the position of rotation that is limited, it just can not cross crimping, so eyelet just can not be by mistake from the bolt landing or eyelet can not be fixed in crimping.

The non-circular cross sections of eyelet preferably by have at least one radially inwardly the internal cross section of most of similar round of outstanding projection realize.

If internal cross section has a plurality of projections of regular intervals along the circumferential direction, a plurality of position of rotation are correspondingly just arranged, its perforations can be pushed crosses crimping.This just makes and finds such position of rotation easilier during installation, thereby finishes installation more simply sooner.

The eyelet that is installed on the bolt can have the size bigger than its supporting part for the axial direction of bolt, it is also at least in part around crimping like this.It preferably has identical size at least with the crimping of supporting part, bolt, thereby the non-circular periphery of crimping still is hidden in the inside of eyelet.

In order to guarantee that on the one hand eyelet has minimum gap on supporting part, guarantee that on the other hand eyelet centers on the simple rotatability of bolt, preferred eyelet has basically (or most of) circular internal cross section, larger sized circular cross section in having radially inner at least one projection and have than first in its axially extended first in second portion.

Description of drawings

Other features and advantages of the present invention will be according to more clear to the explanation of embodiment below in conjunction with accompanying drawing, wherein:

Fig. 1 illustrates the sketch of side on the top of vertical type refrigeration machine, and the freezing compartment in two top all can use the trap that can rotate to horizontal stowed position to be closed and be maintained at this position by clamp bar;

Fig. 2 illustrates along the line II of Fig. 1 and passes trap and around its part cross section of framework;

Fig. 3 illustrates clamp bar and is used to be fixed in the part perspective view of the bolt of straight formula refrigeration machine inwall;

Fig. 4 illustrates the perspective view of the side of facing vertical type refrigeration machine framework inwall of bolt;

Fig. 5 illustrates the clamp bar that is in extension state; And

Fig. 6 illustrates the part perspective view according to the clamp bar of second embodiment of the invention and relevant bolt.

The specific embodiment

Fig. 1 illustrates the sketch of the upright straight formula refrigeration machine 10 of family expenses of the self-supporting device that is set to have heat insulation door 11 and heat insulation shell 12, and it has outer lining 13, thermal insulation layer 14 that forms by foam and the liner 15 that forms by the deep draw plastic plate.Reveal end portion at two sidewalls 16 of door has dark pass anchor clamps 17, and it forms and be set to the relation of presenting down each other substantially vertically by the deep draw mold pressing, and be used to serve as a contrast lid can be by the approaching refrigerating chamber 18 of door 11.

Refrigerating chamber 18 is had vapo(u)rization system 19 coolings of the evaporimeter annex 20 that is provided with the regular intervals relation of presenting down each other and almost flatly extends.The vertical spacing of evaporimeter annex 20 is divided into refrigerating chamber the cooling compartment 21 that self is provided with, below the cooling compartment have drawing type container 22 holding frozen goods, simultaneously two of top cooling compartments 21 can its in the face of the front of door 11 by can be around horizontal rotational shaft and below the trap 30 that describes in detail is closed.

On each sidewall 16, on the position of each top compartment 21, all have two anchor clamps 17 respectively.Feathering axis forms by two coaxial each other relative bolts 23 in current embodiment, and they are fixed by the bar (not shown) in the bottom of two dark pass anchor clamps 17 on two sidewalls 16.

Its bar 25 is fixed on optional mode and anchor clamps 17 interactional maintenance bolts 24 each other in the higher dark pass anchor clamps 17 on top of bolt 23.

From Fig. 2 especially as can be seen, thereby keep bolt 24 to have the degree of depth that flange 26 limit rods 25 penetrate anchor clamps 17, described flange 26 contacts with the sidewall 16 that centers on anchor clamps 17.Supporting part 27 and flange 26 butts are held crimping 28 terminations at itself and flange 26 opposing ends.Keep bolt 24 also to have lock part 29, be used to keep the trap 30 made by injection-moulded plastic, be used for closing cooling compartment 21 as mentioned above thereon and construct in the mode of basic dish type.Therefore it can remain on its vertical closing position, and trap 30 is engaged on its sidewall by the otch that end stretches into wherein to anchor clamps 32 that refrigerating chamber 18 is opened and anchor clamps 32 and lock part 29.

Above-mentioned bolt 23 defines the rotating shaft of trap 30, wherein they with the groove 33 that is bonded on respectively from the outstanding pin (not shown) of sidewall 16 on the sidewall 31 that is formed at trap 30 in.Groove 33 is a slot, and it extends with vertical direction when trap 30 is positioned at closing position, thereby discharges trap 30 so that trap 30 moves upward from closing section 29.

Coaxial each other relative through hole 34 is at groove 33 and have on the sidewall 31 of the trap 30 between the anchor clamps 32 of otch.They are used to hold the holding element 36 on one of two free ends of the clamp bar 35 that is positioned at as shown in Figure 4, holding element 36 may be engaged with separable locking connected mode with through hole 34.Holding element 36 is connected in as single workpiece and for example uses on the clamp bar 35 that injection moulding made by polyamide.Supporting eyelet 37 is injection-moulded on second free end of clamp bar 35 as another holding element, is held in rotatable mode on the supporting part of the maintenance bolt 24 between flange 26 and maintenance crimping 28.

Each trap 30 all has a clamp bar 35 on two sidewall 31.In the closing position of trap shown in Figure 1, clamp bar 35 is bent into U-shaped; If one of trap 30 is opened and horizontal orientation, shown in Fig. 1 dotted line, its clamp bar 35 longitudinal extensions and trap 30 is clamped in horizontal level.

Fig. 3 is the enlarged perspective that the supporting eyelet 37 of clamp bar 35 is shown and is used to support the maintenance bolt 24 of supporting eyelet 37.Above-mentioned lock part 29 only is illustrated with dotted line with schematic transparent mode in Fig. 3, on the one hand the periphery that keeps crimping 28 can be shown intactly, it is not the essential feature that keeps bolt 24 that lock part 29 is shown on the other hand, but can use other device outside the device shown in Figure 1 that trap 30 is locked in closing position yet.

Keeping the peripheral of crimping 28 is circular substantially, is separated by outer four the radially inwardly outstanding recesses 38 placing 90 ° of each intervals at crimping 28.The minimum point of recess 38 is on a circle, in any case accurately the diameter with circular supporting part 27 is identical or bigger slightly than the latter for its diameter.

Supporting eyelet 37 has adjacent each other two parts 39,40 on the y direction that keeps bolt 24.In the drawings in the face of the part 39 that keeps bolt has the basic freely circular internal cross section that is, thereby it has radially inwardly outstanding four projections 41 and the cross section complementation that keeps crimping 28.The size of crimping 28 and part 39 is adjusted to only use takes some strength and just can propulsive units 39 cross and keep crimping 28, and projection 41 engages with recess 38 simultaneously.Because four projections 41 and recess 38 are arranged respectively, four position of rotation are just arranged, wherein support eyelet 37 and can be pushed into to cross and keep crimping 28.As long as projection 41 engages with recess 38, supporting eyelet 37 is no longer rotation just; Have only when projection 41 and passed recess 38 and arrived supporting part 27, supporting eyelet 37 could be around keeping bolt 24 rotations.Because opposite with the supporting eyelet of traditional clamp bar, supporting eyelet 37 only can be with the position of rotation of regulation by keeping crimping 28, and supporting eyelet 37 can not move to gradually in rotatablely moving and keep on the crimping 28 and be maintained fixed there.

The second portion 40 of supporting eyelet 37 has circular free cross section, and its diameter is bigger slightly than the diameter that keeps crimping 28.This part 40 is around the periphery that keeps crimping 28; when supporting eyelet 37 be installed in keep on the bolt 24 and therefore protection keep the periphery of crimping 28 to avoid damaging and being out of shape, and mean that supporting eyelet 37 is only given at the same time and keep crimping 28 to bring under the situation of damage just being mounted or dismantling.

Fig. 4 illustrates and keeps bolt 24 from its perspective view in the face of the side of sidewall 31.Four ribs 42 are molded on the peripheral surface of open circles mast 25, extend along the longitudinal direction of bar 25, and only two as seen in the accompanying drawings.The position of rib 42 is selected to be changed along with precision, thereby anchor clamps 17 are molded in the cylinder that has only rib 42 in the liner 15 when keeping bolt 24 to be inserted into anchor clamps 17 but not support the bar 25 of described rib and contact with the wall of anchor clamps 17 in view of the above, thereby anchor clamps 17 are out of shape or by its distortion.This has just guaranteed the tip of rib 42 during ensuing ultrasonic bonding and the wall fusion of anchor clamps 17, thereby for good and all and securely will keep bolt 24 to be fixed in the sidewall 16.

Be positioned in the face of the circumferential rib 43 on the side of the flange 26 of the sidewall 16 of bar 25 and also realize identical purpose.If keeping in the axial direction applying sufficient pressure on the bolt 24 at weld period, rib 43 just fuses with plane around the sidewall 16 of anchor clamps 17 in ultrasonic bonding.

Fig. 5 is illustrated in the perspective view that its end is molded with the clamp bar 35 of holding element 36,37.The holding element 36 that is used for fixing on the through hole 34 of trap 30 comprises open circles mast 44, its peripheral diameter deducts amount of movement just corresponding to the diameter of through hole 34, and the shape of extending along bar 44 is the hollow parts 45 of truncated cone, and the greater is bigger slightly than through hole 34 in the face of bar 44 and its diameter in two primary surface.Form slit 46 in bar 44 and the truncated cone 45, so they can be pinched together, thereby compressing truncated cone 45 passes through hole 34, thereby clamp bar 35 is fixed on the trap 30.

By clamp bar 35 longitudinal extension under relaxed state of elastic plastic material injection mo(u)lding, so this relaxed state is corresponding to the open position of trap 30.Thereby the tension force of clamp bar 35 helps opening of trap 30, and this is opposite with the lax traditional clamp bar of curved configuration with clamp bar in the closing position of trap 30.Under the situation of the relaxation state clamp bar of bending, thereby trap 30 must have constant weight can be arrived it and open and be stopped the position, clamp bar longitudinal extension wherein, resist the elastic force of clamp bar 30 fully, no matter why all can realize this position by the weight of clamp bar trap 30 of the present invention or the hardness of clamp bar 35.Thereby therefore clamp bar 35 can be designed to enough firmly also can bear the weight that puts on open trap 30.

Between holding element 36,37, clamp bar 35 is divided into 48,49 and weak slightly middle bodies 50 of two firm outer parts.In the closing position of trap 30, the bending of clamp bar 35 concentrates on the middle body 50, and in other words clamp bar has been taked the almost configuration of U-shaped, do not have bending or only the outer part 48,49 of slight bending formed the outer branches of U.When trap is closed, the possible difference in length of outer part 48,49 is corresponding to the difference in height of holding element 36,37, therefore in this position, as shown in Figure 1, clamp bar 35 hangs straight down and not have not remarkable at least giving prominence under the outstanding sidewall 31 of crossing trap 30 or any situation.

Fig. 6 illustrate with the maintenance bolt of 24 ' mark and with the 6th embodiment of the holding element 37 ' of the clamp bar 35 of its effect.Keep bolt 24 ', similar with the bolt 34 shown in Fig. 3 and Fig. 4, have the open circles mast 25 that inserts in the anchor clamps 27 and bar 25 from its outstanding flange 26.The shape of holding element 37 ' is similar with the holding element 36 of Fig. 5 basically.Be sake of clarity, in Fig. 6, only illustrate and cut latter half that the profile of complete holding element is shown in broken lines.Together providing bar 44 and shape with holding element 36 is the part of truncated cone 45, and it is compressible by slit 46, so they can be inserted into the hole 51 that is formed in the flange 26 and in this locking.

Keep bolt 24 ' in the face of the side of sidewall 16 with shown in Figure 4 identical.Keep bolt 24 ' therefore also can be fixed on the sidewall 16 with reference to same way as shown in Figure 4.

Certainly, keep bolt 24 or 24 ' to keep the clamp bar 35, can also rib 42,43 be set aforesaid way, and be fixed in liner by ultrasonic bonding or other suitable welding method except that being used to.Particularly this is possible for above-mentioned bolt 23.Keeping bolt 24 or 24 ' not have under the situation of lock part 29, shown in Fig. 3,4,6, its function can be replaced by specific lock(ing) bolt, and it also can be by being used to keep the mode of bolt 24 to be fixed.

Claims

1. one kind has cooling chamber and is arranged in cooling chamber and can be by the refrigerating plant of approaching at least one compartment (21) of rotatable trap (30), described trap (30) is had two holding elements (36,37) clamp bar (35) remains on open position, first holding element (36) is fixed on the trap (30), and second holding element (37) is by means of bolt (24,24 ') be fixed on the inner pressurd vessel of refrigerating plant, bolt engages with the anchor clamps (17) of the deep draw of inner pressurd vessel (15), it is characterized in that described bolt is welded in the anchor clamps (17).

2. refrigerating plant as claimed in claim 1 is characterized in that, described bolt (24,24 ') is welded on the anchor clamps (17) by ultrasonic bonding.

3. refrigerating plant as claimed in claim 1 or 2 is characterized in that, described bolt (24,24 ') has the bar (25) that is engaged in the anchor clamps (17).

4. refrigerating plant as claimed in claim 3 is characterized in that, described bar (25) has the rib (42) of projection.

5. refrigerating plant as claimed in claim 4 is characterized in that, described rib (42) extends at the axial direction of bar (25).

6. any as described above described refrigerating plant of claim, it is characterized in that, described bolt (24,24 ') has the flange (26) that rests on the wall surface (16) of anchor clamps (17) and this flange (26) supporting surface at least one projection (43) to wall surface (16).

7. as claim 3 and 6 described refrigerating plants, it is characterized in that the rib that described projection (43) is extended for distaff.

8. any as described above described refrigerating plant of claim is characterized in that described second holding element (37) is an eyelet, with the supporting part (27) of rotatable mode fishbolt.

9. refrigerating plant as claimed in claim 8, it is characterized in that, described eyelet (37) has non-circular internal cross section, and, the crimping (28) of termination supporting part (27) has the outer cross with this internal cross section complementation, and this makes that promoting eyelet (37) at the position of rotation that is limited by shape of cross section crosses crimping (28).

10. refrigerating plant as claimed in claim 9 is characterized in that, described eyelet (37) has the internal cross section that is essentially circular, and it has a radially inwardly outstanding projection (41) at least.

11. refrigerating plant as claimed in claim 10 is characterized in that, described internal cross section have a plurality of on peripheral direction the projection (41) of regular intervals.

12. as claim 10 or 11 described refrigerating plants, it is characterized in that, be installed in described eyelet (37) on the bolt (24) and have at least supporting part (27) and the identical size of crimping (28) with bolt (24) in the axial direction.

13. as any described refrigerating plant in the claim 10 to 12, it is characterized in that, described eyelet (37) has the internal cross section that is essentially circular, the circular cross section of larger diameter in having radially inner at least one projection (41 ') and have than first (39) in second portion (40) on it extending axially the first (3 9) of portion.