CN103512300B - Refrigerator doors end cap and the refrigerator with it - Google Patents
Refrigerator doors end cap and the refrigerator with it Download PDFInfo
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- CN103512300B CN103512300B CN201310509013.7A CN201310509013A CN103512300B CN 103512300 B CN103512300 B CN 103512300B CN 201310509013 A CN201310509013 A CN 201310509013A CN 103512300 B CN103512300 B CN 103512300B
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- end cap
- top cover
- refrigerator doors
- doors end
- refrigerator
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- 230000007704 transition Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005206 flow analysis Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Refrigerator Housings (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of refrigerator doors end cap and have its refrigerator, described refrigerator doors end cap comprises: top cover; Left plate and right panel, described left plate and described right panel are vertically located at longitudinal two ends of described top cover; Front and rear panels, described header board and described rear plate are vertically located at the transverse ends of described top cover, and the wall thickness of described rear plate is 2.5-3mm, and on the inner surface of described top cover, contiguous described rear plate place is formed towards the recessed throttling channel of described top cover.Refrigerator doors end cap according to the embodiment of the present invention can shorten the length producing weld mark in the process of injection moulding effectively, even can eliminate weld mark, and product tensile strength is large, good looking appearance.
Description
Technical field
The present invention relates to an electro-technical field, especially relate to a kind of refrigerator doors end cap and there is its refrigerator.
Background technology
Weld mark and tired gas are the modal defects of Injection Industry, and it not only can reduce the tensile strength of goods, but also likely affects the aesthetics of outward appearance.
At present, in refrigerator industry, door external face quality is bad, all has very long weld mark, and along with tired gas.The main manifestations that plastic weld mark produces is: a kind of linear trace occurred on plastic surface, hinders the grade quality of plastic, and mechanical property is also under some influence (as in Fig. 1 being the weld mark L schematic diagram on existing refrigerator doors end cap 100 ' surface).
Weld mark formation mechenism: in injection moulding process, the place merged together again after shunting in die cavity of the material of molten condition, surface forms joint close and stream line.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.
The working experience that the present inventor is long-term according to it, and by constantly experiment, the factor finding affect weld mark and tired gas is mainly present in during plastic component structure designs, and therefore, it is thought and avoids weld mark and tired gas problem, can consider from plastic component structure.
For this reason, the present invention needs to provide a kind of refrigerator doors end cap, and it can shorten the length producing weld mark in the process of injection moulding effectively, even can eliminate weld mark, and product tensile strength is large, good looking appearance.
The present invention also needs to provide a kind of refrigerator with this refrigerator doors end cap.
The refrigerator doors end cap of embodiment, comprising: top cover according to a first aspect of the present invention; Left plate and right panel, described left plate and described right panel are vertically located at longitudinal two ends of described top cover; Front and rear panels, described header board and described rear plate are vertically located at the transverse ends of described top cover, and the wall thickness of described rear plate is 2.5-3mm, and on the inner surface of described top cover, contiguous described rear plate place is formed towards the recessed throttling channel of described top cover.
Can find out by analyzing contrast, when the wall thickness of rear plate is 3.0mm, and the weld mark length increasing throttling channel is the shortest, and wall thickness is that 2.5mm takes second place, and meets the requirement reducing weld mark.Therefore, the present inventor proposes the wall thickness of the rear plate of refrigerator doors end cap to be designed to 2.5 ~ 3.0mm, and arranges throttling channel, thus effectively can shorten the length of weld mark, even can eliminate weld mark, improve the tensile strength of product, and the outward appearance of product be more attractive in appearance.
In addition, refrigerator doors end cap according to the present invention also can have following additional technical feature:
Preferably, described rear wooden partition is thick is 3mm.
According to one embodiment of present invention, described top cover wall thickness is 2.5mm.
According to one embodiment of present invention, on described top cover, the thickness at corresponding described throttling channel place is 1.5-2mm.
Preferably, on described top cover, the thickness at corresponding described throttling channel place is 2mm.
According to one embodiment of present invention, chamfered transition is passed through between the inner surface of described throttling channel and the inner surface of described top cover.
According to one embodiment of present invention, the angle of inclination on described inclined-plane is 120-175 degree.
Preferably, the angle of inclination on described inclined-plane is 175 degree.
The refrigerator of embodiment comprises according to a second aspect of the present invention: casing, and the front side of described casing is opened wide; Men Ti, described door body is located at the front side of described casing pivotly; The refrigerator doors end cap of embodiment according to a first aspect of the present invention, described refrigerator doors end cap is located at upper end and/or the lower end of described door body.
Preferably, described refrigerator doors end cap is located at the top and bottom of described door body.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the front view of refrigerator doors end cap in background technology, it illustrates the structure of the weld mark on refrigerator doors end cap;
Fig. 2 is the stereogram of the refrigerator doors end cap according to the embodiment of the present invention;
Fig. 3 is the rearview of the refrigerator doors end cap shown in Fig. 2;
Fig. 4 is the sectional view along A-A line in Fig. 3;
Fig. 5 is the enlarged drawing in B region in Fig. 4
Fig. 6 a-Fig. 6 c is the top cover of different-thickness and rear plate, the effect contrast figure of the weld mark produced during injection moulding;
Fig. 7 a-Fig. 7 c is the top cover of different-thickness and rear plate, in injection moulding process, and the vector comparison diagram of the speed of different directions.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " on ", the orientation of the instruction such as D score, "front", "rear", "left", "right" or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below with reference to Fig. 2-Fig. 7 c, the refrigerator doors end cap 100 according to the embodiment of the present invention is described.As shown in Figure 2, according to the refrigerator doors end cap 100 of the embodiment of the present invention, comprising: top cover 1, left plate 2, right panel 3, header board 4 and rear plate 5.Wherein, be understandable that, refrigerator doors end cap 100 can not also comprise left plate 2, right panel 3 and header board 4, can improve the scope of application of refrigerator doors end cap 100 thus, explains material.
Top cover 1 is positioned at the top of refrigerator doors end cap 100, and left plate 2 and right panel 3 are vertically located at longitudinal two ends of top cover 1, and header board 4 and rear plate 5 are vertically located at the transverse ends of top cover 1.Wherein, the wall thickness of rear plate 5 is 2.5-3mm, as shown in Figure 5.Wherein, after contiguous on the inner surface of top cover, plate 5 place is formed towards the recessed throttling channel 11 of top cover 1.
In prior art, refrigerator doors end cap the wall thickness of rear plate be 1.5-1.8mm, the refrigerator doors end cap of this spline structure, in the process of injection moulding, can produce longer weld mark, such as, shown in Fig. 1.So not only affect the outward appearance of product, and extremely affect the tensile strength of product.
For solving the longer problem of door end cap weld mark, the present inventor changes from the viewpoint of product structure, and use Moldflow to carry out mold flow analysis, wherein, wall thickness for the rear plate 5 of refrigerator doors end cap 100 be 2.0 2.5 3.0 (unit mm) carry out the comparative analysis of Moldflow mould stream, result is as follows:
| The wall thickness (unit mm) of rear plate 5 | Weld mark length L(unit mm) |
| 2.0 | 45 |
| 2.5 | 10.5 |
| 3.0 | 5.0 |
Can find out by analyzing contrast above, when the wall thickness of rear plate 5 is 3.0mm, and the weld mark length increasing throttling channel 11 is the shortest, and wall thickness is that 2.5mm takes second place, and meets the requirement reducing weld mark.Therefore, the present inventor proposes the wall thickness of the rear plate 5 of refrigerator doors end cap 100 to be designed to 2.5 ~ 3.0mm, and arranges throttling channel 11, thus effectively can shorten the length of weld mark, even can eliminate weld mark, improve the tensile strength of product, and the outward appearance of product be more attractive in appearance.
Preferably, the wall thickness of rear plate 5 is 3mm, can shorten the length of weld mark so further.Wherein, alternatively, the wall thickness of top cover 1 is 2.5mm.That is, rear plate 5 is set to 3/2.5 with the wall-thickness ratio of top cover 1, and particularly, as shown in Figure 5, on top cover 1, the thickness at corresponding throttling channel 11 place is 1.5-2mm, and preferably, on top cover 1, the thickness at corresponding throttling channel 11 place is 2mm.Effectively can shorten the length of weld mark like this, effectively improve the tensile strength of product, be conducive to the aesthetic property improving product.
As shown in Figure 5, between the inner surface of throttling channel 11 and the inner surface of top cover 1 by inclined-plane 12 transition.Transition between the inner surface of throttling channel 11 and top cover 1 can be made so more level and smooth, and structural strength is large.Alternatively, as shown in Figure 5, the angle of inclination on inclined-plane 12 is 120-175 degree, and that is, the angle ε between the inner surface of inclined-plane 12 and throttling channel 11 is 120-175 degree.Preferably, the angle of inclination on inclined-plane 12 is 175 degree, and transition between the inner surface of throttling channel 11 and top cover 1 can be made so more level and smooth, and structural strength is large, and manufacture is more prone to.
The wall thickness for different rear plates 5 is analyzed, the principle that the weld mark in injection moulding process produces referring to Fig. 6 a-Fig. 6 c.
For simplicity, if V1 is in injection moulding process, the material of molten condition perpendicular to the flow velocity in rear plate 5 direction, if after V1-V0 arranges throttling channel 11, the material of molten condition perpendicular to the flow velocity in rear plate 5 direction, if the material that V2, V3 are molten condition is parallel to the flow velocity in rear plate 5 direction.
Wherein, Fig. 6 a is that the wall thickness of rear plate 5 is 2mm and does not arrange the weld mark generation schematic diagram of refrigerator doors end cap 100 in injection moulding process of throttling channel 11, Fig. 6 b be the wall thickness of rear plate 5 be 2mm and the refrigerator doors end cap 100 being provided with throttling channel 11 in injection moulding process, the generation schematic diagram of weld mark, Fig. 6 c be the wall thickness of rear plate 5 be 3mm and the refrigerator doors end cap 100 being provided with throttling channel 11 in injection moulding process, the generation schematic diagram of weld mark.
Inventor learns by experiment, converge in die cavity perpendicular to the material of rear plate 5 direction with two bursts of molten conditions in parallel and rear plate 5 direction, formation converges angle γ, as Fig. 6 a-Fig. 6 c, when converging angle γ and being less than 135 °, can be formed with weld mark, when converging angle γ and being greater than 135 °, weld mark disappears.
As Fig. 6 a, when after the wall thickness of plate 5 be 2.0mm, when the wall thickness of top cover 1 is 2.5mm, because flow velocity is directly proportional to wall thickness, V1 > V2, forms weld mark L1; As Fig. 6 b, when after the wall thickness of plate 5 be 2.0mm, when the wall thickness of top cover 1 is 2.5mm and increases throttling channel 11, because flow velocity is directly proportional to wall thickness, because flow velocity is directly proportional to wall thickness, V1-V0<V1, form weld mark L2, can find out in figure, the length of L2 is less than the length of L1; As Fig. 6 c, when when after the wall thickness of plate 5 be 3.0mm, the wall thickness 2.5mm of top cover 1 and when increasing throttling channel 11, because flow velocity is directly proportional to wall thickness, V1-V0<V1, V2<V3, form weld mark L3, can find out in figure, the length of L3 is less than the length of L2, and namely the length of L3 is the shortest.
Fig. 7 a shows the vector between V1 and V2, Fig. 7 b shows the vector between V1-V0 and V2, Fig. 7 c shows the vector between V1-V0 and V3, wherein, V3>V2, V1>V1-V0, the vector of V2 and V1-V0 and the angle α ' of perpendicular are greater than the vector of V2 and V1 and the angle α of perpendicular, the vector of V3 and V1-V0 and the angle β of perpendicular are greater than the vector of V2 and V1-V0 and the angle α ' of perpendicular, thus just can in injection moulding process, make to converge angle γ to be increased, and then the length of weld mark can be reduced.
Refrigerator according to a second aspect of the present invention comprises casing, door body and refrigerator doors end cap 100.The front side of casing is opened wide, and door body is located at the front side of casing pivotly, and refrigerator doors end cap 100 is the refrigerator doors end cap 100 of embodiment according to a first aspect of the present invention, and wherein, refrigerator doors end cap 100 is located at upper end and/or the lower end of a body.That is, the upper end of a body can be located at according to the refrigerator doors end cap 100 of the embodiment of the present invention, or the lower end of a body can be located at according to the refrigerator doors end cap 100 of the embodiment of the present invention, then or the top and bottom of a body can be located at according to the refrigerator doors end cap 100 of the embodiment of the present invention.Alternatively, refrigerator doors end cap 100 is located at the top and bottom of a body simultaneously, and the refrigerator doors end cap 100 of the top and bottom of the door body of refrigerator can be made thus all to keep profile attractive in appearance and higher tensile strength.
Waiting according to other formations of the refrigerator of the embodiment of the present invention and operate is all known for those of ordinary skills, no longer describes in detail here.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a refrigerator doors end cap, is characterized in that, comprising:
Top cover;
Left plate and right panel, described left plate and described right panel are vertically located at longitudinal two ends of described top cover;
Front and rear panels, described header board and described rear plate are vertically located at the transverse ends of described top cover, and the wall thickness of described rear plate is 2.5-3mm, and on the inner surface of described top cover, contiguous described rear plate place is formed towards the recessed throttling channel of described top cover.
2. refrigerator doors end cap according to claim 1, is characterized in that, described rear wooden partition is thick is 3mm.
3. refrigerator doors end cap according to claim 1 and 2, is characterized in that, described top cover wall thickness is 2.5mm.
4. refrigerator doors end cap according to claim 1, is characterized in that, on described top cover, the thickness at corresponding described throttling channel place is 1.5-2mm.
5. refrigerator doors end cap according to claim 4, is characterized in that, on described top cover, the thickness at corresponding described throttling channel place is 2mm.
6. refrigerator doors end cap according to claim 4, is characterized in that, passes through chamfered transition between the inner surface of described throttling channel and the inner surface of described top cover.
7. refrigerator doors end cap according to claim 6, is characterized in that, the angle of inclination on described inclined-plane is 120-175 degree.
8. refrigerator doors end cap according to claim 7, is characterized in that, the angle of inclination on described inclined-plane is 175 degree.
9. a refrigerator, is characterized in that, comprising:
Casing, the front side of described casing is opened wide;
Men Ti, described door body is located at the front side of described casing pivotly;
Refrigerator doors end cap according to any one of claim 1-8, described refrigerator doors end cap is located at upper end and/or the lower end of described door body.
10. refrigerator according to claim 9, is characterized in that, described refrigerator doors end cap is located at the top and bottom of described door body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310509013.7A CN103512300B (en) | 2013-10-24 | 2013-10-24 | Refrigerator doors end cap and the refrigerator with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310509013.7A CN103512300B (en) | 2013-10-24 | 2013-10-24 | Refrigerator doors end cap and the refrigerator with it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103512300A CN103512300A (en) | 2014-01-15 |
| CN103512300B true CN103512300B (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310509013.7A Expired - Fee Related CN103512300B (en) | 2013-10-24 | 2013-10-24 | Refrigerator doors end cap and the refrigerator with it |
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| Country | Link |
|---|---|
| CN (1) | CN103512300B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836876A (en) * | 2014-03-27 | 2014-06-04 | 合肥美的电冰箱有限公司 | Door end cover used for refrigerator and refrigerator comprising door end cover |
| CN106979653B (en) * | 2017-05-03 | 2019-07-26 | 合肥美的电冰箱有限公司 | Refrigeration equipment end cap and refrigeration equipment with it |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3303956B2 (en) * | 1995-03-20 | 2002-07-22 | 株式会社富士通ゼネラル | Refrigerator door |
| KR20040082515A (en) * | 2003-03-19 | 2004-09-30 | 엘지전자 주식회사 | Structure for cap deco of refrigerator |
| EP4206590B1 (en) * | 2005-07-20 | 2024-09-04 | LG Electronics Inc. | Refrigerator door and method of manufacture thereof |
| CN201488449U (en) * | 2009-08-31 | 2010-05-26 | 合肥美的荣事达电冰箱有限公司 | Refrigerator end cover capable of being opened from both left and right |
| CN102235792B (en) * | 2011-06-09 | 2013-07-24 | 合肥美的荣事达电冰箱有限公司 | Door body of refrigeration plant and refrigerator |
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2013
- 2013-10-24 CN CN201310509013.7A patent/CN103512300B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN103512300A (en) | 2014-01-15 |
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Granted publication date: 20150826 |