CN100463632C - Electric heating container using flat plate heating element - Google Patents
Electric heating container using flat plate heating element Download PDFInfo
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- CN100463632C CN100463632C CNB2004100772605A CN200410077260A CN100463632C CN 100463632 C CN100463632 C CN 100463632C CN B2004100772605 A CNB2004100772605 A CN B2004100772605A CN 200410077260 A CN200410077260 A CN 200410077260A CN 100463632 C CN100463632 C CN 100463632C
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- container body
- container
- heating element
- base
- retainer plate
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Abstract
The electrically heating container with flat plate heating element includes main container body with conic cavity over the seat, horizontal flat plate heating element inside the container, and support located onto the inner side wall and with outer edge connected to the inner side wall. It features that there are one fixed ring below the heating element along the inner side wall of the container and one fastening block to form complementary structure with container wall, with the seat being fixed to the fixing ring and the heating element. The present invention has the relevant parts constituting stable installation chain easy to be dismounted and the heating element and its born part are supported firmed in high rigidity.
Description
Technical field
The present invention relates to a kind of electric-heating container, especially it adopts the tabular heating element heater to develop in the mounting structure of taper electric-heating container intracavity bottom.In International Patent Classification (IPC), classification belongs to A47J27/21.
Background technology
Electric-heating container, comprise home electrical heater and similar laboratory equipments such as electric kettle, electric heating kettle, electric water-heating cup and electric heater, for attractive in appearance or be convenient to clean, adopt the tabular heating element heater to develop more and more in the structure of holding the water intracavity bottom.Also be owing to reasons such as aesthetics, the inner chamber of a lot of container bodies is designed to cone, this structure can only be installed the tabular heating element heater in this inner chamber from the bottom up: the support that at first upwards is positioned the container body madial wall, be that outer rim engages the container body madial wall through elastic sealing element then, be a structure of locating downwards at last, the tabular heating element heater is fixed in the container body.Certainly, also have a base usually in below closed container main body, and be used to hold supply unit etc.For simpler structure and more reliable effect are arranged, prior art has provided multiple scheme to the structure of described downward location.
Scheme early sees Chinese invention patent ublic specification of application CN1145022A " heating vessel ".Shown in this Figure of description, its critical piece comprises: the main body 4 that polypropylene is molded mainly is container 2 and the handle 8 that wall 6 and level and smooth bottom 10 are formed; Be welded on the heating element heater 12 on the bottom 10; Thermally-responsive controls 14 and base 34.The inner radial wall 24 of the bottom 22 of wall 6 forms a convex shoulder 26, is used to locate the copper silicon rubber seal ring 28 of settling a square-section.Bottom 22 radial outer wall 30 form a boss limit 32.The periphery of bottom 10 has groove 16, and its outer rim 18 can upsweep around boss limit 32.During assembling, at first, sealing ring 28 is close to convex shoulder 26 sprawls bottom 22 in wall 6,22 inner and outer wall applies lubricant in the bottom then, and the groove 16 of bottom 10 is pushed into the end 22 of wall 6, until the lower limb 38 of the bottom of groove 16 36 abuts wall 6, the outer rim 18 of groove 16 is upsweeped around boss limit 32, the bottom 22 of wall 6 is clamped between outer rim 18 and the sealing ring 28.Apply a pressure on the thickness direction of wall 6 is common, to reduce thermal creep as far as possible.Obviously, the structure of the downward location of heating element heater 12 is on boss limit 32.The bottom 22 that comprises the wall 6 on boss limit 32 has and the upwards positioning function of supporting heating element heater 12 concurrently downwards, is to reduce material and volume, the bigger cross section that do not have, but will influence the rigidity and the stability of structure.This structure has been actually used in production, but exists following problem on process and assemble:
A) wall 6 of main body 4 assembles with the bottom 10 of container 2, needs to adopt process for pressing, the assembly technology complexity, and be not to be a kind of rigidity and the preferable structure of stability.
B) main body 4 becomes one structure with bottom 10, can't rotate adjustment relatively.And thermally-responsive controls 14 is installed on the bottom 10, and base 34 can only be fixed on the bottom 10, because main body 4 and bottom 10 secure bond, base 34 is also fixing thereupon with the binding site of main body 4.Be communicated with air-breather up and down owing to need in the handle, the lower end of handle need be installed between the wall 6 and bottom 34 of main body 4, steam can be fed in the bottom 34 from container 2.Main body 4 synthesizes in the process of one with bottom 10, be easy to cause rotary shifted, bottom 34 is fixed on inevitable dislocation thereupon on the bottom 10, and the handle installation site on the handle installation site of reserving on the bottom 34 and the wall 6 of main body 4 produces dislocation, and handle 8 just can't installation in position.
C) assembling process must be assembled main body 4 and bottom 10 earlier, and thermally-responsive controls 14 is installed on bottom 10 again, and bottom 34 is installed at last.In case main body 4 and bottom 10 assembling dislocation, both all can scrap, and cause very big loss.
D) finish the electric property test that just can carry out product behind the above-mentioned assembly process.In case the electric property test failure, main body 4 is scrapped owing to taking apart with bottom 10, causes damage equally.
Another kind has seen that scheme such as the present specification generally used are shown in Figure 2 at present: the heating element heater 2 of this structure is fixed in base 4 by screw 5, and its carrying is directed reach the container bearing-surface through base 4, and rigidity obviously improves.But container base 4 is to be fixed on the container body 1 by button bit, the same problem of scrapping of taking apart that exists of this button bit structure.In addition, the button bit structure also and the preferable structure of instability.Especially when vessel temp rose, the change in size that is caused was difficult to keep the stability of working of plastics assembling.For example when the cold water in the container is heated to boiling water, the diameter of container body will become about 1.5mm, make button bit loosening easily, even come off, and produce serious leakage accident.
Take the problem of scrapping apart for solution, especially the heating element heater recovery can unloaded whenever necessary, Chinese invention patent specification CN1145022A " having the electric-heating container that an element is remained on back-up ring wherein " has disclosed the structure shown in Figure 1 as present specification: the inside at container 1 wall forms screw hole, then screw 3 is passed the hole on heating element heater 2 installing plates, heating element heater 2 is fixed on the container.It also points out the deficiency of this structure simultaneously: for obtaining the screw hole of sufficient intensity, meeting too increases wall thickness and influences cost; Or form annular local crowning at outside of containers, then can influence Shooting Technique and product appearance.This patent proposes the structure shown in its Figure of description: the top of heating element heater 2 outer rims upwards is positioned a plurality of isolated supporting member 16 that container body 1 madial wall protrudes, the side that is outer rim then engages the container body madial wall through elastic sealing element, be a back-up ring around the container body madial wall at last, upwards push the outer rim of heating element heater, make it to be fixed in the container body.The downward location of this back-up ring is to rely on and the complementary engagement of container body wall; For example the outer rim of back-up ring has protuberance, and the container body sidewall is relatively opened complementary groove.Back-up ring and its protuberance are integrated, and in elder generation's indentation container body, distending allows its protuberance snap in the groove of container body sidewall then during assembling.Afterwards, need to connect one and fix the parts of this distending shape.Unloading the problem that heating element heater reclaims whenever necessary though this structure solves, it is complicated that structure seems, and rigidity is not good enough.
Summary of the invention
Technical problem to be solved by this invention is: a kind of electric-heating container that adopts flat plate heating element is provided, its tabular heating element heater is in the downward location structure of container, can overcome all disadvantages of prior art as stated in the Background Art, especially both solved the problem of scrapping of taking apart, structural rigidity had preferably been arranged again.
Technical scheme of the present invention is a kind of electric-heating container that adopts flat plate heating element, comprising: inner chamber is the container body of cone, is positioned at the base top; Flat heating element heater, level in container body upwards is positioned the support of container body madial wall, and outer rim engages the container body madial wall through elastic sealing element; It is characterized in that: in the below of heating element heater one retainer plate is arranged,, be positioned to become the fastening block of complementary member engagement downwards with the container body wall around the container body madial wall; Base upwards is anchored on retainer plate and heating element heater; Described retainer plate is one less than the molded plastic part of container body to the under shed internal diameter, has and the joining screw column of base; Described container body wall respectively has the complementary groove that matches respectively with it in each place, fastening block place; Described fastening block (7) has the convex shoulder that makes the retainer plate location.
This technical scheme is designed to separable retainer plate and fastening block to described downward location structure dexterously, and the former is connected with heating element heater through base, and the latter becomes the complementary member engagement with the container body wall, constitute closed fixedly chain, and is both stable, is convenient to dismounting again; Heating element heater and carrying thereof are directed reach the container bearing-surface through base, rigidity are preferably arranged, the suitable simple economy of structure.
The modular design of this technical scheme is: described fastening block is 6, and is uniform around retainer plate.
Also can further design complementary groove and fastening block that described base and the sidewall of meeting mutually of container body hide described container body, outwards skid off to stop fastening block, the sidewall of container is also comparatively smooth attractive in appearance; Design described base by the base ring of molding and base at the bottom of two parts constitute, to help processing; The design containers main body inner wall has support in the top of retainer plate outer rim, is convenient to retainer plate installation process location.This support is many top-down muscle distributing around the container body inwall or the annular convex shoulder of one.
Description of drawings
The following drawings is used to illustrate embodiments of the invention:
Fig. 1 is the 1st kind of electric-heating container structure chart that adopts flat plate heating element of prior art.
Fig. 2 is the 2nd kind of electric-heating container structure chart that adopts flat plate heating element of prior art.
Fig. 3 implements the electric-heating container structure chart for the present invention the 1st.
Fig. 4 is Fig. 3 partial structurtes enlarged drawings.
Fig. 5 is the present invention's the 2nd embodiment electric-heating container structure chart.
The specific embodiment
Be illustrated in figure 2 as a kind of electric-heating container that adopts flat plate heating element of the described prior art of background technology, comprise: inner chamber is the injection moulded containers main body 1 of cone roughly, is positioned at base 4 tops; Flat heating element heater 2, level in container body 1 upwards is positioned the ring-type convex shoulder A3 of container body 1 madial wall, and outer rim engages container bodies 1 madial wall through elastic sealing element 9; Container base 4 is to be fixed on the container body 1 by button bit, and the upward opening part 14 of base 4 has thin vertical component 15, is covered in the downward opening portion 10 of container body 1 during installation from bottom to top.This two parts joint place is the button bit structure.Be to pass through base 4 with screw 5 to be tightened against heating element heater 2 at last.Base 4 belows are except that closed container main body 1, and central authorities accommodate and are used for the supply unit 13 that heating element heater 2 connects external power source and control.
Various embodiments of the present invention are to improve to form on architecture basics as shown in Figure 2.
The present invention the 1st embodiment is shown in Fig. 3 and Fig. 4 (Fig. 4 is Fig. 3 partial structurtes enlarged drawings), its improvement with respect to Fig. 2 (meaning of unaccounted number in the figure and effect and Fig. 2's is identical in the literary composition, and numeral is identical but go up the parts that the index number person refers to corresponding modify) mainly is:
---the inwall of the downward opening portion 10 ' of container body 1 ' has expansion slightly, forms ring-type convex shoulder B3;
---in heating element heater 2 and below, elastic sealing element 9 joints, increase the retainer plate 6 of an engineering plastics injection moulding, it has 3 screw columns for base 4 ' connection, external diameter is less than the internal diameter of container body 1 downward opening portion 10 ', and the inwall along opening portion 10 ' during installation upwards is pushed into convex shoulder B3;
---the downward opening portion 10 ' of container body 1 ' in plane, retainer plate 6 place equal angles open 6 rectangular channels 20 that point to the axis of container bodies 1;
---increase by 6 fastening blocks 7 slightly littler than the cross section of rectangular channel 20, it passes through rectangular channel 20 respectively slidably and directes reach retainer plate 6, and has the horizontal component 12 of holding retainer plate 6 lower surfaces and the convex shoulder that props up the vertical component 11 of retainer plate 6 outer circumference surfaces; Fastening block 7 is made even with the notch of rectangular channel 20 according to propping up retainer plate 6 backs, designs its horizontal size;
---the bottom of base 4 ' increases by 3 and is used for the screw hole that is connected with the screw column of retainer plate 6, after base 4 ' is covered in the downward opening portion 10 ' of container body 1 during installation, at first pass through base 4 ' and be tightened against heating element heater 2 with screw 5, pass through this 3 screw holes with screw 8 then, be connected with 3 screw columns of retainer plate 6; Because the retainer plate 6 at 3 screw column places relies on the fastening block 7 that is stuck in rectangular channel 20 downwards, along with screw 8 turns, the elastic sealing element 9 of heating element heater 2 and outer rim thereof is pushed into ring-type convex shoulder A3 by base 4 ' on screw 5, until compressing.
The present invention the 2nd embodiment as shown in Figure 5, the difference of itself and the 1st embodiment shown in Figure 3 only is being: base change into branch by the base ring 16 of injection moulding and base at the bottom of 17 2 parts constitute, 17 2 parts are engaged in support 18 at the bottom of base ring 16 and the base.This structure makes things convenient for the assembling of supply unit 13 when installing, only take at the bottom of the base 17 during maintenance apart and get final product, and also can simplify mould.
The circular step A3 of the embodiment of the invention and B3 also can change many top-down muscle that distribute around the container body inwall into, can save material.In addition, the container body wall is by the structure of the complementary positioning and fixing circle of itself and fastening block, also can change into passing through the structure that the container body wall is screwed into retainer plate with screw and positioning, can simplified structure, but the container body wall needs suitable wall thickness, and outward appearance is understood influenced; 6 fastening blocks can be divided into relative 3 groups of 2 fastening blocks of every group, be distributed in 3 parallel to the axis on, the groove on the container body wall also so correspondingly 3 parallel to the axis on, can simplify the sliding-mode structure of fluting.
Claims (5)
1. electric-heating container that adopts flat plate heating element, comprising: inner chamber is the container body (1) of cone, is positioned at base (4) top; Flat heating element heater (2), level in container body (1) upwards is positioned the support (A3) of container body (1) madial wall, and outer rim engages container body (1) madial wall through elastic sealing element (9); It is characterized in that: in the below of heating element heater (2) retainer plate (6) is arranged,, be positioned to become the fastening block (7) of complementary member engagement downwards with container body (1) wall around container body (1) madial wall; Base (4) upwards is anchored on retainer plate (6) and heating element heater (2); Described retainer plate (6) is one less than the molded plastic part of container body (1) under shed (10 ') internal diameter, has and the joining screw column of base (4); Described container body (1) wall respectively has the complementary groove (20) that matches respectively with it in place, each fastening block (7) place; Described fastening block (7) has the convex shoulder that makes retainer plate (6) location.
2. electric-heating container as claimed in claim 1 is characterized in that: described fastening block (7) is 6, and is uniform around retainer plate (6).
3. electric-heating container as claimed in claim 1 is characterized in that: described base (4) and the sidewall of meeting mutually of container body (1) hide the complementary groove (20) and the fastening block (7) of described container body.
4. electric-heating container as claimed in claim 3 is characterized in that: described base (4) by the base ring (16) of molding and base at the bottom of (17) two parts constitute.
5. electric-heating container as claimed in claim 1, it is characterized in that: container body (1) inwall has support (B3) in the top of retainer plate (6) outer rim, and this support (B3) is many top-down muscle distributing around container body (1) inwall or the annular convex shoulder of one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100772605A CN100463632C (en) | 2004-12-03 | 2004-12-03 | Electric heating container using flat plate heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100772605A CN100463632C (en) | 2004-12-03 | 2004-12-03 | Electric heating container using flat plate heating element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1781416A CN1781416A (en) | 2006-06-07 |
| CN100463632C true CN100463632C (en) | 2009-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100772605A Expired - Fee Related CN100463632C (en) | 2004-12-03 | 2004-12-03 | Electric heating container using flat plate heating element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100463632C (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3138698A (en) * | 1963-09-17 | 1964-06-23 | Alton R Wells | Container and electrical heater means |
| US3308225A (en) * | 1963-10-16 | 1967-03-07 | Robert M Wells | Method of forming mechanically interlocked heat seal engagement between a bottom plate and a plastic container in a coffee percolator, or other receptacle |
| JP2000237054A (en) * | 1999-02-18 | 2000-09-05 | Pip Fujimoto Co Ltd | Electric kettle |
| CN1135092C (en) * | 1996-07-15 | 2004-01-21 | 奥特控制有限公司 | Improvements relating to electrically heated vessels |
| CN1135093C (en) * | 1997-10-07 | 2004-01-21 | 奥特控制有限公司 | Improvements of electrically heated vessels |
| CN1545965A (en) * | 2003-12-04 | 2004-11-17 | 邵志成 | Electric liquid heating vessels |
| CN2722789Y (en) * | 2004-09-02 | 2005-09-07 | 江门市洗衣机厂 | Electric heating container using plate heating element |
-
2004
- 2004-12-03 CN CNB2004100772605A patent/CN100463632C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3138698A (en) * | 1963-09-17 | 1964-06-23 | Alton R Wells | Container and electrical heater means |
| US3308225A (en) * | 1963-10-16 | 1967-03-07 | Robert M Wells | Method of forming mechanically interlocked heat seal engagement between a bottom plate and a plastic container in a coffee percolator, or other receptacle |
| CN1135092C (en) * | 1996-07-15 | 2004-01-21 | 奥特控制有限公司 | Improvements relating to electrically heated vessels |
| CN1135093C (en) * | 1997-10-07 | 2004-01-21 | 奥特控制有限公司 | Improvements of electrically heated vessels |
| CN1515214A (en) * | 1997-10-07 | 2004-07-28 | 奥特控制有限公司 | Improvement of electric heated container |
| JP2000237054A (en) * | 1999-02-18 | 2000-09-05 | Pip Fujimoto Co Ltd | Electric kettle |
| CN1545965A (en) * | 2003-12-04 | 2004-11-17 | 邵志成 | Electric liquid heating vessels |
| CN2722789Y (en) * | 2004-09-02 | 2005-09-07 | 江门市洗衣机厂 | Electric heating container using plate heating element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1781416A (en) | 2006-06-07 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20131203 |