WO2013163960A1 - Sealing structure for electric kettle - Google Patents

Abstract

Disclosed is a sealing structure for an electric kettle. The structure comprises a large body (2) with a handle (13) and a base cover (8) thereof, wherein a heating element (5) is arranged inside the large body (2), and the large body (2) is provided with a large body opening (2.1) corresponding to the heating element (5); a sealing component (3) is arranged at a position where the large body opening (2.1) is connected to the heating element (5), and the sealing component (3) is arranged immediately adjacent to the heating element (5); a folded annular opening groove (5.1) is arranged at the outer periphery of the heating element (5); one end of the sealing component (3) is accommodated in the folded annular opening groove (5.1), and the other end of the sealing component (3) stands upright at the outer periphery of the heating element (5) to form a heating plate container assembly (5.2) with an upward opening, and the heating plate container assembly opening (5.3) is sealingly connected to the outer wall of the large body opening (2.1). The structure is simple and suitable, safe and reliable, and is easy to assembly and has a good sealing effect.

Description

Sealing structure of electric kettle

 Technical field

 The utility model relates to an electric kettle, in particular to a sealing structure of an electric kettle.

 Background technique

The electric kettle is one of the commonly used small household appliances, which is used for heating water and at the same time can be used as a container for water, and has the characteristics of being convenient to use. The bottom of the kettle is provided with an electric heating device. Previously, the heating device was an electric heating tube, which protruded upward from the bottom of the container into the container to heat the water in the container, because the electric heating tube as a heat generating component was completely Exposed to the water, it is easy to rust due to corrosion, and finally it is damaged and cannot be used, and it affects hygiene.

In response to the above problems, designers in the industry have designed an electric heating device in which the heating surface is planar, and the planar heating surface forms the bottom of the heating container and is heated directly in contact with water. Therefore, the tightness between the electric heating device and the container is one of the key factors reflecting the performance of the electric kettle. In the prior art, a sealing ring is generally disposed between the top surface of the heating device and the bottom surface of the convex ring, and a compressible spring device is disposed in the axial direction, and the spring device applies a seal from the bottom to the top in the axial direction. The ring is compressed to achieve the force of the seal. During the boiling process, the spring may be compressed by the water gravity, causing the seal to be tight, and the assembly of the structure is difficult and the cost is high. It is necessary to make further improvements and improvements.

 Utility model content

The purpose of the utility model aims to provide a sealing structure of an electric kettle which is simple and reasonable in structure, safe and reliable, simple in assembly and good in sealing effect, in order to overcome the deficiencies in the prior art.

 A sealing structure of an electric kettle designed for this purpose, The utility model comprises a large body with a handle and a bottom cover, wherein a heating element is arranged in the large body, and the large body corresponding to the heating element is provided with a large body opening, and the large body opening is provided with a sealing component at the junction with the heating element, and the sealing component is The heating element is tightly arranged, and the peripheral part of the heating element is turned over the annular opening groove, and the end of the sealing member is circulated through the annular opening groove, and the other end of the sealing member is erected on the periphery of the heating element to form an opening upward heating disk container assembly, and the heating disk container assembly opening and The outer body of the large body is sealed and connected.

The sealing component is a silicone sealing ring, and the silicone sealing ring is provided with an embedding portion, and the heating element corresponding to the silicone sealing ring is provided with a circular opening circular groove, and the turning annular opening groove is disposed around the periphery of the heating element; the silicone sealing ring is arranged On the heating element, the embedding portion is fixedly fixed with the through-opening circular opening groove, and the inner cavity of the annular groove is turned over more than the turning opening, and the embedded portion of the silicone sealing ring is fixed without being displaced outward and elastically sealed to form an opening upward. A low heat plate container assembly with a high center and a low center.

The tumbling annular opening groove is disposed inwardly, outwardly, upwardly, or downwardly around the peripheral opening of the heating element; the silicone sealing ring inserting portion is disposed in the circling annular opening groove to be fixedly fixed, or the embedded portion is wrapped and circulated through the annular opening Sealed inside and outside the tank.

The large body opening of the large body is inserted into the opening of the heating plate container assembly, and the silicone sealing ring is wrapped or covered on the lower part of the large body; the cross section of the large body opening is linear, curved or inclined.

 The bottom of the large body opening forms a convex edge, and the silicone sealing ring wraps the convex edge.

 The tumbling annular opening groove includes an annular groove and a crimping portion, and the angle between the crimping portion and the outer side of the annular groove is less than 90 degrees.

The silicone sealing ring is formed with an embedded portion and an elastic wrapping portion, the embedded portion is located in the annular groove, and an outer end portion of the annular groove is bent inward to form a crimping portion, and the crimping portion The insert is pressed, and the elastic wrap encloses the ledge.

An inner side of the elastic wrapping portion is provided with an annular rib, the annular rib is pressed against the protruding edge, and an annular pressure pad is arranged above the embedded portion, and the pressing portion presses the annular pressure pad. The maximum inner diameter of the elastic wrap is less than the smallest outer diameter of the ledge. The surface of the elastic wrapping portion that fits the body is provided with a corrugated structure.

 The inserting portion includes a bottom edge and a side edge, and the bottom edge is press-fitted into the crimping portion, and the side edge extends out of the crimping portion, and the thickness of the bottom edge is larger than the thickness of the side edge.

The outer wall of the silicone sealing ring and the buckle abut each other, the heating plate container assembly is sealed and connected with the large body extrusion deformation, and the silicone sealing ring, the heating element and the large body are clamped and fixed between the buckles.

The buckle is located on the protruding edge of the silicone sealing ring package, or the buckle is located outside the silicone sealing ring surrounding the convex edge, or the buckle is two, one of the buckles The buckle is located on the convex edge of the silicone sealing ring package, and the other buckle is located outside the silicone sealing ring surrounding the convex portion.

 The buckle comprises a buckle opening, and the two ends of the buckle ring are fastened or fixed to each other, and are enclosed by a circular ring shape, a circular shape or an elliptical shape.

The buckle is connected with the bottom cover with more than one protrusion, the protrusion is in a zigzag shape for refracting the light source, and is disposed around the upper part of the buckle; the lower part of the buckle is provided with a top ring, the heating element and the top The upper surface of the ring abuts and the heating element is a heating disk.

The buckle has an annular shape with an opening, and the two ends are tightened and together form a closed circular, circular or elliptical shape; the silicone sealing ring, the heating element and the large body are clamped and fixed to the buckle between.

The bottom cover is provided with a thermostat assembly, a switch button and a power connection assembly electrically connected to the heating element; the power connection assembly is movably connected to the bottom cover; the power connection assembly comprises a power upper cover and a power lower cover, and the power supply cover A coupler is disposed between the lower cover of the power supply.

The handle is integrally or separately arranged with the large body, and a steam passage is arranged between the handle and the large body, and the steam passage is connected with the inner cavity of the large body, and the material of the large body is glass or ceramic parts; There is a cover body hingedly fixed thereon.

The buckle ring and the top ring fixing sealing member are lifted upwards, and the sealing member is provided with a contact surface which is enlarged from the top to the bottom or the same as the large body opening, and constitutes a bottom-heated leak-proof body.

 The lower portion of the handle is coupled to the buckle.

The heating element of the utility model is provided with a sealing component, and a buckle is arranged outside the sealing component to realize the sealing connection between the heating component and the large body, and the pressing force is generated in the assembly process by the buckle, thereby causing the silicone sealing ring to be elastically deformed. The gap between the heating element and the large body is filled to achieve the purpose of sealing; the silicone sealing ring, the heating element and the large body are clamped and fixed between the buckles to ensure the tightness of the heating element and the large body, and the sealing is effectively prevented. The problems of not strict, misplaced, product leakage and water seepage improve the quality of the product; at the same time, it has the characteristics of simple and reasonable structure, long service life, low cost, wide application range and easy processing and production.

 DRAWINGS

 1 is a schematic exploded view of an embodiment of the present invention;

 Figure 2 is a schematic view showing the assembly of the heating plate container assembly, the buckle ring and the top ring;

 Figure 3 is a cross-sectional structural view of Figure l after assembly;

 Figure 4 is a schematic enlarged view of the structure A in Figure 3;

 Figure 5 is a cross-sectional view showing the structure of the heating plate and the silicone sealing ring of the heating plate container assembly;

 Figure 6 is a schematic exploded view of the heating plate container assembly;

 Figure 7 is a schematic structural view of another embodiment of the present invention;

 Figure 8 is a schematic enlarged view of the structure at B in Figure 7.

 In the figure: l is the cover body, 2 is the big body, 2.1 is the large body opening, 3 is the silicone sealing ring, 3.1 is the embedded part, 3.3 For the elastic wrap, 3.4 is the annular rib, 4 is the thermostat assembly, 5 is the heating element, 5.1 is the circular opening slot, 5.2 is the heating disc container assembly, 5.3 For the opening of the heating plate container assembly, 5.4 is to traverse the inner cavity of the annular groove, 5.5 is the annular groove, 5.6 is the crimping part, 6 is the buckle ring, 6.1 is the buckle ring opening, 6.2 is the protrusion, 7 For the top ring, 8 for the bottom cover, 9 for the power supply cover, 10 for the coupler, 11 for the power supply lower cover, 12 for the steam passage, 13 for the handle, 14 for the switch button, 15 for the flange, 16 For the corrugated structure, 17 is a compression ring.

 detailed description

 The present invention will be further described below in conjunction with the drawings and embodiments.

 Referring to Figure 1 - Figure 6, the sealing structure of the electric kettle includes a large body 2 with a handle 13 and its bottom cover 8 , a handle 13 With the body 2 as a separate body, a steam passage 12 is provided between the handle 13 and the body 2, and the steam passage 12 communicates with the inner cavity of the body 2, and the body 2 is made of glass. Handle 13 The cover body l is fixedly fixed with the cover body l, and the cover body l is rotatably connected with the body 2. The body 2 is provided with a heating plate container assembly 5.2, the heating plate container assembly 5.2 is a heating element 5 And silicone sealing ring 3 sealed connection, silicone sealing ring 3 is provided with embedded part 3.1, heating element 5 corresponding to the silicone sealing ring is provided with a circular opening groove 5.1, which is turned over the annular opening groove 5.1 Surroundingly disposed on the periphery of the heating element, the tumbling annular opening groove is disposed around the peripheral opening of the heating element inward, outward, upward, or downward; the silicone sealing ring is disposed on the heating element, and the embedded portion 3.1 and the circling ring Open slot 5.1 Fit and fix, turn over the inner cavity of the annular groove 5.4 Larger than the opening of the opening, the sealing part of the silicone sealing ring 3.1 It is fixed without being displaced outward and is elastically sealed to form a heat-dissipating disc container assembly with an opening to the upper and lower peripheral high and low portions 5.2. The bottom cover 8 is provided with a thermostat assembly electrically connected to the heating element 5, and a switch button 14 and power connection components. The power connection assembly is movably connected to the bottom cover 8 and the power connection assembly is assembled from the power supply cover 9 and the power supply lower cover 11. Power supply cover 9 and power supply cover 11 A coupler 10 is provided between them, the coupler 10 is electrically connected to the switch button 14, and the switch button 14 controls the opening and closing of the heat generating component 5.

 Large body 2 corresponding heating element 5 is provided with an outwardly extending large body opening 2.1. The body opening 2.1 and the heating element 5 Sealing parts are provided at the joint, as shown in Figure l and Figure 3. A buckle is arranged on the outer side of the sealing member, and the heating element of the buckle is fixedly connected with the body, and more than one protrusion is arranged at the joint of the buckle 6 and the bottom cover 6.2 The protrusion 6.2 is serrated, and the protrusion is serrated for the refracting light source, and is disposed around the upper portion of the buckle 6, and the buckle 6 is fixed to the opening of the bottom cover 8 by the protrusion 6.2. Buckle 6 The lower part is provided with a top ring 7 which is fixedly connected with the buckle 6 and the bottom cover 8 by screws or upwardly by a snap-fit connection sealing member. The heating element 5 abuts against the upper surface of the top ring 7, the top ring 7 The heating element 5 can be supported to prevent the heating element 5 from being compressed by the water gravity during the boiling process, and the buckle 6 is connected to the fixed sealing member to be lifted upward. Heating element 5 through the sealing part and the body 2 For the purpose of sealing connection, the purpose is to improve the sealing performance of the electric kettle, and can effectively prevent problems such as poor sealing, misalignment, product leakage and water seepage, and improve the quality of the product.

 The sealing member is a silicone sealing ring 3, and the silicone sealing ring 3 is provided with an embedded portion 3.1. Heating element 5 corresponding to silicone seal 3 The embedding portion 3.1 is provided with a turn-over annular opening slot 5.1 which is bendably opened and closed, and is arranged around the annular opening slot 5.1 to be disposed outside the heat generating element 5. Seal the silicone seal before assembly 3 From the top to the bottom of the heating element 5, the embedded portion 3.1 is strongly pressed to the heating element 5. The inner cavity of the annular groove is turned over 5.4, and the circular opening groove is turned over through the heating element 5. Applying an external force, causing it to bend and form an open small cavity with a large internal cavity 5.4 and cooperate with the embedded portion 3.1 to realize the heating element 5 and the silicone sealing ring 3 The fixed connection forms a heating plate container assembly opening 5.3 of the heating plate container assembly 5.2, see Figure 2, Figure 5, Figure 6.

 The inner wall of the silicone sealing ring 3 and the heating element 5 form an opening of the heating plate container assembly opening 5.3, the large body opening on the body 2 2.1 Socket heating plate container assembly opening 5.3 Inside, silicone sealing ring 3 Cover the lower part of the body 2. The outer wall of the silicone seal ring 3 and the retaining ring 6 abut each other, the buckle ring 6 upper ring opening 6.1 They are fastened to each other and are enclosed in a circular shape. The purpose is to: the silicone sealing ring 3, the heating element 5 and the large body 2 are clamped and fixed between the buckles 6 through the buckle 6 During the assembly process, a pressing force is generated to cause the silicone sealing ring 3 to elastically deform, and the gap between the heating element 5 and the body 2 is filled to achieve the purpose of sealing to ensure the normal use of the electric kettle, as shown in FIG. - Figure 4 .

 Further, as shown in FIG. 7 and FIG. 8, the bottom of the large body opening 2.1 forms a convex edge 15, and the silicone sealing ring 3 Wrap the raised edge 15 . The annular opening groove 5.1 includes an annular groove 5.5 and a crimping portion 5.6, and the angle between the crimping portion 5.6 and the outer side of the annular groove 5.5 is less than 90 Degree.

 The inserting portion 3.1 and the elastic wrapping portion 3.3 are formed on the silicone sealing ring 3, and the embedded portion 3.1 Located in the annular groove 5.5, the outer end of the annular groove 5.5 is bent inwardly to form a crimping portion 5.6, and the crimping portion 5.6 presses the embedded portion 3.1, the elastic wrapping portion 3.3 Wrap the raised edge 15 .

 The inner side of the elastic wrapping portion 3.3 is provided with an annular rib 3.4 against which the annular rib 3.4 is pressed, the embedding portion 3.1 An annular pressure pad 17 is arranged on the upper side, and the crimping portion 5.6 presses the annular pressure pad 17 . The maximum inner diameter of the elastic wrapping portion 3.3 is smaller than the convex edge 15 The smallest outer diameter. The surface of the elastic wrapping portion 3.3 that is attached to the body 2 is provided with a corrugated structure 16 .

 The inserting portion 3.1 includes a bottom edge and a side edge, and the bottom edge is pressed into the crimping portion 5.6, and the side edge extends out of the crimping portion 5.6. The thickness of the bottom edge is greater than the thickness of the side edges.

 The outer wall of the silicone sealing ring 3 and the retaining ring 6 abut each other, the heating plate container assembly 5.2 is sealed with the large body extrusion deformation, silicone sealing ring 3 The heating element 5 and the body 2 are clamped and fixed between the buckles 6.

 The buckle 6 is located at the flange 15 outside the sheath of the silicone sealing ring 3, or the buckle 6 is located to wrap the flange 15 The part of the silicone seal ring 3 is outside.

In addition to the above structure, the buckle may also be two, one of the buckles is located on the protruding edge of the silicone sealing ring package, and the other buckle is located at a portion of the silicone wrapped around the protruding edge. Outside the seal.

Claims (20)

1.  The sealing structure of the electric kettle comprises a large body (2) with a handle (13) and a bottom cover (8), and a heating element is arranged inside the body (5) , characterized in that the large body corresponding to the heating element is provided with a large body opening (2.1) The large body opening is provided with a sealing member at a position where the heating element is connected, the sealing member is closely arranged with the heating element, and the peripheral portion of the heating element is turned over the annular opening groove (5.1) The end of the sealing member is circulated in the annular opening groove, and the other end of the sealing member is erected on the periphery of the heating element to form an opening upward heating disk container assembly (5.2), the heating disk container assembly opening (5.3) and the large body opening (2.1) The outer wall is sealed.
2. The sealing structure of the electric kettle according to claim 1, wherein the sealing member is a silicone sealing ring (3), and the silicone sealing ring (3) is provided with an embedded portion. (3.1), heating element (5) Corresponding silicone sealing ring is provided with a circular opening groove (5.1), which is turned over the annular opening groove (5.1) The surrounding is disposed on the periphery of the heating element; the silicone sealing ring is disposed on the heating element, and the embedded portion (3.1) is fixedly matched with the circular opening groove (5.1), and is turned over the inner cavity of the annular groove (5.4) More than the tumbling opening, the silicone sealing ring inserting portion (3.1) is fixed and not elastically sealed by being displaced outward, forming an opening to the upper and lower peripheral high-heating plate container assembly (5.2) .
3. A sealing structure for an electric kettle according to claim 1 or 2, wherein the annular opening groove (5.1) The surrounding opening is arranged inward, outward, upward or downward of the opening of the heating element; the silicone sealing ring inserting portion (3.1) is arranged to be fixed in the circular opening groove (5.1), or the embedded portion (3.1) The package is circulated through the annular opening groove (5.1) and sealed inside and outside.
4. A sealing structure for an electric kettle according to claim 3, wherein the large body opening (2.1) on the large body (2) is inserted into the opening of the heating plate container assembly (5.3) Inside, the silicone sealing ring (3) is wrapped or covered in the lower part of the body (2); the large body opening (2.1) has a straight, curved or inclined cross section.
5. The sealing structure of the electric kettle according to claim 4, characterized in that the bottom of the large body opening (2.1) forms a convex edge (15), and the silicone sealing ring (3) Wrap the raised edge (15).
6. A sealing structure for an electric kettle according to claim 5, wherein the annular opening groove (5.1) includes an annular groove (5.5) and a crimping portion (5.6), the angle between the crimping portion (5.6) and the outer side of the annular groove (5.5) is less than 90 degrees.
7. A sealing structure for an electric kettle according to claim 6, wherein the silicone sealing ring (3) is formed with an insert portion (3.1) and an elastic wrapping portion. (3.3), the insert portion (3.1) is located in the annular groove (5.5), and an outer end portion of the annular groove (5.5) is bent inward to form a crimping portion (5.6), the crimping unit (5.6) Pressing the insert (3.1), the elastic wrap (3.3) wrapping the ledge (15).
8. The sealing structure of the electric kettle according to claim 7, characterized in that the inner side of the elastic wrapping portion (3.3) is provided with an annular rib (3.4) The annular rib (3.4) is pressed against the convex edge (15), and an annular pressure pad (17) is disposed above the embedded portion (3.1), and the crimping portion (5.6) presses the annular pressure Pad (17) .
9. A sealing structure for an electric kettle according to claim 7, wherein said elastic wrap portion (3.3) has a maximum inner diameter smaller than said convex edge (15) The smallest outer diameter.
10. The sealing structure of the electric kettle according to claim 7, characterized in that the surface of the elastic wrapping portion (3.3) and the body is provided with a corrugated structure (16) .
11. A sealing structure for an electric kettle according to claim 7, wherein said inserting portion (3.1) comprises a bottom edge and a side edge, and the bottom edge is pressed into the crimping portion (5.6). Inside, the side edges extend out of the crimping portion (5.6), and the thickness of the bottom side is larger than the thickness of the side edges.
12. A sealing structure for an electric kettle according to claim 5, wherein the outer wall of the silicone sealing ring (3) and the retaining ring (6) abut each other, and the heat generating disk container assembly (5.2) Sealed with the large body extrusion deformation, the silicone sealing ring (3), the heating element (5) and the large body (2) are clamped and fixed between the buckles (6).
13. A sealing structure for an electric kettle according to claim 12, wherein said retaining ring (6) is located at said convex edge other than said silicone sealing ring (3) (15), or the buckle (6) is located outside the silicone sealing ring (3) surrounding the convex edge (15), or the buckle (6) There are two, one of the buckles is located on the convex edge of the silicone ring wrapping, and the other fastening ring is located outside the silicone ring enclosing the convex portion.
14. A sealing structure for an electric kettle according to claim 12, wherein said retaining ring (6) comprises a snap ring opening (6.1) The two ends of the buckle ring are fastened or fixed to each other, and are enclosed by a circular, circular or elliptical shape.
15. The sealing structure of the electric kettle according to claim 14, wherein the buckle (6) is provided with more than one protrusion at the junction with the bottom cover (8). (6.2), the protrusion is serrated for the refracting light source, and is disposed around the upper part of the buckle; the lower part of the buckle is provided with a top ring (7), and the heating element (5) Abutting against the upper surface of the top ring, the heat generating component is a heat generating disk.
16. A sealing structure for an electric kettle according to claim 15, wherein said retaining ring (6) An annular shape with an opening, the ends are tightened and together form a closed circular, circular or elliptical shape; the silicone sealing ring (3), the heating element (5) and the large body (2) are clamped Fixed to the buckle (6) Between.
17. A sealing structure for an electric kettle according to claim 1, wherein said bottom cover (8) is provided with a thermostat assembly electrically connected to the heat generating component (5) (4), switch button (14) and power connection assembly; power connection assembly is movably connected to the bottom cover; power connection assembly includes power supply cover (9) and power supply cover (11) A coupler (10) is disposed between the upper cover of the power supply and the lower cover of the power supply.
18. A sealing structure for an electric kettle according to claim 1, wherein said handle (13) and the body (2) For the integrated setting or the split setting, a steam passage (12) is arranged between the handle and the large body, and the steam passage is connected with the inner cavity of the large body, and the material of the large body is made of glass or ceramic; the handle is provided with Hinged and fixed cover (1) .
19. A sealing structure for an electric kettle according to claim 15, wherein said retaining ring (6) and said top ring (7) The fixed sealing member is lifted upward, and the sealing member is provided with a contact surface which is enlarged from the top to the bottom or the same as the large body opening, and constitutes a bottom-heated leakproof body.
20. A sealing structure for an electric kettle according to claim 12, wherein a lower portion of said handle is coupled to said buckle.

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