Electric heating structure

Abstract

An electric heating structure comprises a liquid containing cylinder arranged on a heating base, noise reduction convex ribs protruding upwards or noise reduction grooves sunken downwards are arranged on the inner surface of the liquid containing cylinder, the noise reduction convex ribs or the noise reduction grooves are continuously or intermittently arranged in an incense coil shape or a back-and-forth coil shape, the heating base comprises a heat conduction plate and an electric heating pipe, and the heat conduction plate is arranged on the liquid containing cylinder. The electric heating tube is connected with the outer surface of the liquid containing cylinder through the heat conduction plate, and the noise reduction convex ribs or the noise reduction grooves are located in the range where the heat conduction plate is connected with the liquid containing cylinder. A first boss protruding upwards is arranged on the inner surface of the bottom or the inner surface of the side wall of the liquid containing cylinder, and the noise reduction convex ribs or the noise reduction grooves are arranged on the first boss. A plurality of spoke-shaped flow guide grooves are formed in the side, facing the liquid containing cylinder, of the heat conducting plate. The electric heating tube comprises a first electric heating tube and a second electric heating tube. The utility model has the characteristic of low working noise.

Description

Technical Field

[0001] The utility model relates to an electric heating structure. Background Art

[0002] Chinese Patent Document No. CN 107788837 A discloses a silent electric kettle on March 13, 2018, which includes a kettle body with an accommodation cavity inside. A heating plate is provided at the bottom of the kettle body, and a heating surface is exposed in the accommodation cavity. A partition is fixedly provided above the heating surface of the kettle body. The gap between the partition and the heating surface ranges from 0.5 to 1 mm. A plurality of first silent through holes are spaced apart from the outer edge of the partition, and a plurality of second silent through holes are spaced apart in the center of the partition. The apertures of the first silent through holes are the same, and the apertures of any two adjacent second silent through holes are different. The aperture range of the first silent through holes is from 0.5 to 1 mm, and the aperture range of the second silent through holes is from 1 to 5 mm. Although this kind of electric kettle can reduce the noise during the heating operation to a certain extent, its structure is complex, and the later cleaning and maintenance are quite troublesome, which makes users not very satisfied, so it needs to be improved. Content of the Utility Model

[0003] The purpose of the utility model is to provide an electric heating structure with low working noise to overcome the deficiencies in the prior art.

[0004] An electric heating structure designed according to this purpose includes a liquid holding cylinder arranged on a heating base. Its structural feature is that noise reduction ribs protruding upwards or noise reduction grooves recessed downwards are arranged on the inner surface of the liquid holding cylinder. The noise reduction ribs or the noise reduction grooves are arranged continuously or intermittently in a spiral or winding shape. The heating base includes a heat conducting plate and an electric heating tube. The electric heating tube is connected to the outer surface of the liquid holding cylinder through the heat conducting plate. The noise reduction ribs or the noise reduction grooves are located within the range where the heat conducting plate is connected to the liquid holding cylinder.

[0005] Further, a first boss protruding upwards is arranged on the inner surface of the bottom or the inner surface of the side wall of the liquid holding cylinder, and the noise reduction ribs or the noise reduction grooves are arranged on the first boss.

[0006] Further, a plurality of strip-shaped flow guiding grooves are arranged on the side of the heat conducting plate facing the liquid holding cylinder.

[0007] Further, the electric heating tube includes a first electric heating tube and a second electric heating tube. Among them, the first electric heating tube and the second electric heating tube are arranged in the same plane, and the second electric heating tube is located inside the first electric heating tube.

[0008] Further, the electric heating structure further includes a housing. The heating base is arranged at the bottom of the housing, and the liquid holding cylinder is inserted into the housing and pressed against the heating base.

[0009] Furthermore, the electric heating structure further includes an outer cover disposed on the outer shell and connected to the top of the outer shell. An inner cover for sealing the top opening of the liquid storage cylinder is disposed in the middle of the outer cover, and the inner cover and the outer cover are connected by a snap fastener.

[0010] Furthermore, a foldable handle is disposed on the outer periphery of the outer cover.

[0011] Furthermore, the inner cover is provided with a handle connected thereto, and a clearance recess is disposed below the handle of the inner cover.

[0012] Furthermore, an outer cover locking identification indicating position and an outer cover unlocking identification indicating position are circumferentially and spacedly disposed on the upper edge of the outer cover, and an inner cover identification indicating position corresponding thereto is disposed on the inner cover.

[0013] Furthermore, the height of the noise reduction rib or the noise reduction groove on one side is different from the height on the other side, or the height of the noise reduction rib or the noise reduction groove on the inner side is different from the height on the outer side.

[0014] In the utility model, noise reduction ribs protruding upward or noise reduction grooves recessed downward are disposed on the inner surface of the liquid storage cylinder. The noise reduction ribs or the noise reduction grooves are continuously or intermittently disposed in a spiral shape or a reciprocally coiled shape. The heating base includes a heat conducting plate and an electric heating tube. The electric heating tube is connected to the outer surface of the liquid storage cylinder through the heat conducting plate. The noise reduction ribs or the noise reduction grooves are within the range where the heat conducting plate is connected to the liquid storage cylinder. When the product works, the heat generated by the electric heating tube is transferred to the liquid storage cylinder connected thereto through the heat conducting plate. When the liquid in the liquid storage cylinder contacts the inner surface of the liquid storage cylinder, the first contact is the noise reduction ribs or the noise reduction grooves, and then it is the other inner surfaces adjacent to the noise reduction ribs or the noise reduction grooves. Thus, these liquids will not be in a heating or boiling state simultaneously, and the small bubbles decomposed therefrom due to heating will also be generated at different times. Therefore, the generation probability of a large number of large bubbles at the same time is reduced. As the generation rate of large bubbles decreases, more small bubbles are generated and burst during heating or boiling. Therefore, the working noise caused by bubbles during heating and boiling of the liquid can be reduced, and the noise reduction ribs or the noise reduction grooves are all located on the visible surface inside the liquid storage cylinder. Even if scale is generated, it can be easily cleaned, thereby reducing the later maintenance intensity.

[0015] In summary, the utility model has the characteristic of low working noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic perspective view of the utility model after the inner cover is opened.

[0017] Figure 2 It is a schematic diagram of a partial cross-sectional structure after the liquid storage cylinder, the heat conduction plate, the first electric heating tube and the second electric heating tube are assembled.

[0018] Figure 3 It is Figure 2 an enlarged structural schematic diagram of part A in

[0019] Figure 4 It is a schematic diagram of an enlarged partial cross-sectional structure of another embodiment of the present invention.

[0020] Figure 5 A schematic diagram of the disassembled structure of the liquid storage cylinder, the heat conduction plate, the first electric heating tube and the second electric heating tube.

[0021] Figure 6 Figure 1 a top view structural schematic diagram of

[0022] Figure 7 A three-dimensional structural schematic diagram of the present invention during use.

[0023] In the figure: 1 is the liquid storage cylinder, 1.1 is the noise reduction rib, 2 is the first boss, 3 is the outer shell, 4 is the heat conduction plate, 5 is the first electric heating tube, 6 is the second electric heating tube, 4.1 is the diversion groove, 15 is the handle, 16 is the grip, 7 is the clearance recess, 8 is the inner cover identification indication position, 9 is the outer cover locking identification indication position, 10 is the outer cover unlocking identification indication position, 11 is the outer cover, and 12 is the inner cover. Specific embodiments

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Referring to Figures 1-7 , an electric heating structure includes a liquid storage cylinder 1 arranged on a heating base. A noise reduction rib 1.1 protruding upward or a noise reduction groove recessed downward is arranged on the inner surface of the liquid storage cylinder 1. The noise reduction rib 1.1 or the noise reduction groove is arranged continuously or intermittently in a spiral shape or a back-and-forth coiled shape. The heating base includes a heat conduction plate 4 and an electric heating tube. The electric heating tube is connected to the outer surface of the liquid storage cylinder 1 through the heat conduction plate 4. The noise reduction rib 1.1 or the noise reduction groove is located within the range where the heat conduction plate 4 is connected to the liquid storage cylinder 1.

[0026] A first boss 2 protruding upward is arranged on the inner surface of the bottom or the side wall of the liquid storage cylinder 1. The noise reduction rib 1.1 or the noise reduction groove is arranged on the first boss 2.

[0027] A plurality of strip-shaped diversion grooves 4.1 are arranged on the side of the heat conduction plate 4 facing the liquid storage cylinder 1.

[0028] In this embodiment, the diversion groove 4.1 is provided to facilitate the flow of the flux, so as to improve the welding quality.

[0029] The electric heating tube includes a first electric heating tube 5 and a second electric heating tube 6. Among them, the first electric heating tube 5 and the second electric heating tube 6 are arranged in the same plane, and the second electric heating tube 6 is located inside the first electric heating tube 5.

[0030] In this embodiment, the first electric heating tube 5 and the second electric heating tube 6 arranged inside and outside are convenient for controlling the heating process and have uniform heating.

[0031] The electric heating structure further includes a housing 3. The heating base is arranged at the bottom of the housing 3. The liquid storage cylinder 1 is inserted into the housing 3 and pressed against the heating base.

[0032] The electric heating structure further includes an outer cover 11 arranged on the housing 3 and connected to the top of the housing 3. An inner cover 12 for sealing the top opening of the liquid storage cylinder 1 is arranged in the middle of the outer cover 11. The inner cover 12 and the outer cover 11 are connected by a snap.

[0033] A foldable handle 15 is arranged on the outer periphery of the outer cover 11.

[0034] The inner cover 12 is provided with a handle 16 connected thereto. An avoidance recess 7 is arranged below the handle 16 on the inner cover 12.

[0035] Outer cover locking mark indicating positions 9 and outer cover unlocking mark indicating positions 10 are arranged on the outer cover 11 at intervals in the circumferential direction. Inner cover mark indicating positions 8 corresponding thereto are arranged on the inner cover 12.

[0036] Furthermore, the height of the noise reduction rib 1.1 or the noise reduction groove on one side is different from its height on the other side, or the height of the noise reduction rib 1.1 or the noise reduction groove on the inner side is different from its height on the outer side. By setting their heights differently, the formation time difference of small bubbles can be further changed, making it difficult for them to form larger bubbles, thereby reducing the noise during the operation of this product.

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0038] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An electric heating structure, comprising a liquid container (1) arranged on a heating seat, characterized in that The inner surface of the liquid storage cylinder (1) is provided with an upwardly protruding noise reduction rib (1.1) or a downwardly recessed noise reduction groove, the noise reduction rib (1.1) or the noise reduction groove is arranged continuously or intermittently in the shape of a coil or a back-and-forth winding shape, the heating seat comprises a heat conducting plate (4) and an electric heating tube, the electric heating tube is connected to the outer surface of the liquid storage cylinder (1) through the heat conducting plate (4), and the noise reduction rib (1.1) or the noise reduction groove is located within the range where the heat conducting plate (4) and the liquid storage cylinder (1) are connected; A first boss (2) protruding upward is provided on the inner surface of the bottom or the inner surface of the side wall of the liquid storage cylinder (1), and the noise reduction rib (1.1) or the noise reduction groove is provided on the first boss (2).

2. The electric heating structure according to claim 1 is characterized in that A plurality of strip-shaped flow guide grooves (4.1) are arranged on one side of the heat conduction plate (4) facing the liquid storage cylinder (1).

3. The electric heating structure according to claim 1 is characterized in that The electric heating tube comprises a first electric heating tube (5) and a second electric heating tube (6), wherein the first electric heating tube (5) and the second electric heating tube (6) are arranged in the same plane and the second electric heating tube (6) is located on the inner side of the first electric heating tube (5).

4. The electric heating structure according to claim 1 is characterized in that It also comprises a shell (3), the heating seat is arranged at the bottom of the shell (3), and the liquid storage cylinder (1) is inserted into the shell (3) and pressed onto the heating seat.

5. The electric heating structure according to claim 4 is characterized in that It also comprises an outer cover (11) arranged on the outer shell (3) and connected to the top of the outer shell (3); an inner cover (12) for sealing the top opening of the liquid storage cylinder (1) is arranged in the middle of the outer cover (11); the inner cover (12) is connected to the outer cover (11) by a screw-on fastener.

6. The electric heating structure according to claim 5 is characterized in that A foldable handle (15) is provided on the outer periphery of the outer cover (11).

7. The electric heating structure according to claim 5 is characterized in that The inner cover (12) is provided with a handle (16) connected thereto, and the inner cover (12) is provided with a space-avoiding recess (7) below the handle (16).

8. The electric heating structure according to claim 5 is characterized in that The outer cover (11) is provided with an outer cover locking mark indicating position (9) and an outer cover unlocking mark indicating position (10) at intervals along the circumferential direction, and the inner cover (12) is provided with an inner cover mark indicating position (8) corresponding thereto.

9. The electric heating structure according to any one of claims 1 to 8, characterized in that The height of the noise reduction rib (1.1) or the noise reduction groove on one side is different from its height on the other side, or the height of the noise reduction rib (1.1) or the noise reduction groove on the inside is different from its height on the outside.

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